环氧树脂板

一、环氧树脂板简介
   环氧树脂是泛指分子中含有两个或两个以上环氧基团的****高分子化合物，除个别外，它们的相对分子质量都不高。环氧树脂的分子结构是以分子链中含有活泼的环氧基团为其特征，环氧基团可以位于分子链的末端、中间或成环状结构。由于分子结构中含有活泼的环氧基团，使它们可与多种类型的固化剂发生交联反应而形成不溶、不熔的具有三向网状结构的高聚物。

二、环氧树脂板应用特性
1、 形式多样。各种树脂、固化剂、改性剂体系几乎可以适应各种应用对形式提出的要求，其范围可以从极低的粘度到高熔点固体。
2、 固化方便。选用各种不同的固化剂，环氧树脂体系几乎可以在0～180℃温度范围内固化。
3、 粘附力强。环氧树脂分子链中固有的极性羟基和醚键的存在，使其对各种物质具有很高的粘附力。环氧树脂固化时的收缩性低，产生的内应力小，这也有助于提高粘附强度。
4、 收缩性低。环氧树脂和所用的固化剂的反应是通过直接加成反应或树脂分子中环氧基的开环聚合反应来进行的，没有水或其它挥发性副产物放出。它们和不饱和聚酯树脂、酚醛树脂相比，在固化过程中显示出很低的收缩性（小于2%）。
5、 力学性能。固化后的环氧树脂体系具有优良的力学性能。
6、 电性能。固化后的环氧树脂体系是一种具有高介电性能、耐表面漏电、耐电弧的优良绝缘材料。
7、 化学稳定性。通常，固化后的环氧树脂体系具有优良的耐碱性、耐酸性和耐溶剂性。像固化环氧体系的其它性能一样，化学稳定性也取决于所选用的树脂和固化剂。适当地选用环氧树脂和固化剂，可以使其具有特殊的化学稳定性能。
8、 尺寸稳定性。上述的许多性能的综合，使环氧树脂体系具有突出的尺寸稳定性和耐久性。
9、 耐霉菌。固化的环氧树脂体系耐大多数霉菌，可以在苛刻的热带条件下使用。

三、环氧树脂板技术参数

1、外观 表面应平滑，无气泡、皱纹和裂纹。
2、标称厚度及允许偏差见表1。
表1 　mm 

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background:#cccccc;">标称厚度 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background:#cccccc;">偏差 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background:#cccccc;">标准厚度 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background:#cccccc;">偏差 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.4 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.10 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">8.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.72 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.5 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.12 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">10.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.82 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.6 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.13 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">12.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±0.94 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">0.8 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.16 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">14.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.02 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.18 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">16.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.12 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.2 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.20 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">20.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.30 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">1.6 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.24 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">25.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.50 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">2.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.28 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">30.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.70 <****><**** valign="top" width="120" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:90.1pt;background-color:****ansparent;">2.5 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.33 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">35.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±1.95 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">3.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.37 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">40.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.10 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">4.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.45 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">45.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.30 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">5.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.52 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">50.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.45 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">6.0 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">±0.60 <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">60.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.50 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="119" ****="border-color:#ece9d8;padding:0cm;width:88.95pt;background-color:****ansparent;">  <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">  <**** valign="top" width="145" ****="border-color:#ece9d8;padding:0cm;width:108.4pt;background-color:****ansparent;">80.0 <**** valign="top" width="135" ****="border-color:#ece9d8;padding:0cm;width:101.55pt;background-color:****ansparent;">±2.80 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="543" colspan="4" ****="border-color:#ece9d8;padding:0cm;width:407.3pt;background-color:****ansparent;">注： 1 其他允许偏差可由供需双方协商。 2 对于标称厚度不在所列的优选厚度之一者，其允许偏差应采用下一个较大的优选厚度的偏差。

3、平直度见表2。表2 层压板表面距直尺的大允许偏差mm

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" rowspan="2" width="166" ****="border-color:#ece9d8;padding:0cm;width:124.5pt;background:#cccccc;">厚度 （d） <**** valign="top" width="370" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:277.5pt;background:#cccccc;">直尺长度 <****><**** valign="top" width="189" ****="border-color:#ece9d8;padding:0cm;width:5cm;background:#cccccc;">1000 <**** valign="top" width="180" ****="border-color:#ece9d8;padding:0cm;width:135pt;background:#cccccc;">500 <****><**** valign="top" width="166" ****="border-color:#ece9d8;padding:0cm;width:124.5pt;background-color:****ansparent;">1.6≤d≤3 3<> 6<> 8< d <**** valign="top" width="189" ****="border-color:#ece9d8;padding:0cm;width:5cm;background-color:****ansparent;">见注 10 8 6 <**** valign="top" width="180" ****="border-color:#ece9d8;padding:0cm;width:135pt;background-color:****ansparent;">见注 2.5 2.0 1.5 <****><**** valign="top" width="535" colspan="3" ****="border-color:#ece9d8;padding:0cm;width:401.25pt;background-color:****ansparent;">>注：对标称厚度在1.6 mm≤d≤3 mm的允许偏差正在考虑之中

4、性能要求见表4。表4性能要求

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background:#cccccc;">序 号 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background:#cccccc;">指 标 名 称 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background:#cccccc;">单 位 <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background:#cccccc;">指 标 值 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background:#cccccc;">说明 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">1 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">垂直层向弯曲强度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MPa <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥340 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">2 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向冲击强度 （简支梁法） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">KJ/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥33 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">3 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向冲击强度 （悬臂梁法） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">kJ/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥34 <****><**** valign="top" width="50" colspan="2" ****="border-color:#ece9d8;padding:0cm;width:37.6pt;background-color:****ansparent;">4 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">垂直层向电气强度 （90℃±2℃油中） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MV/m <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">见表5 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">5 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向击穿电压 （90℃±2℃油中） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">kV <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥35 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">6a <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介电常数 （48Hz-62Hz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤5.5 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">6b <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介电常数 （1MHz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤5.5 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">7 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">马丁温度纵向 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥200 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">8 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">热稳定性 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">200 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">9 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">耐油性变压器油中4h <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">℃ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">130 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">10 <**** valign="top" width="200" ****="border-bottom-color:#ece9d8;padding:0cm;width:149.7pt;border-right-color:#ece9d8;border-left-color:#ece9d8;background-color:****ansparent;">拉伸强度纵向 横向 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MPa <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥314 ≥216 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">11 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">粘合强度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">N <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥5600 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">12 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">表面电阻率常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">13 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">体积电阻率常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ·m <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">14 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">平行层向绝缘电阻常态时 浸水后 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">MΩ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">  <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">15a <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介质损耗因数 （48Hz-62Hz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤0.04 <**** valign="top" rowspan="2" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">两者之一满足本标准要求即可 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">15b <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">介质损耗因数 （1MHz以下） <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">- <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≤0.04 <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">16 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">浸水后绝缘电阻 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">Ω <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">≥5.0× <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">17 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">密度 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">g/ <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">（1.7-1.9） <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">- <****><**** width="2" ****="border-color:#ece9d8;padding:0cm;background-color:****ansparent;">  <**** valign="top" width="49" ****="border-color:#ece9d8;padding:0cm;width:36.45pt;background-color:****ansparent;">18 <**** valign="top" width="200" ****="border-color:#ece9d8;padding:0cm;width:149.7pt;background-color:****ansparent;">吸水性 <**** valign="top" width="84" ****="border-color:#ece9d8;padding:0cm;width:63.2pt;background-color:****ansparent;">mg <**** valign="top" width="98" ****="border-color:#ece9d8;padding:0cm;width:73.7pt;background-color:****ansparent;">见表6 <**** valign="top" width="112" ****="border-color:#ece9d8;padding:0cm;width:84.25pt;background-color:****ansparent;">-

表5垂直层向电气强度

<**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="98%" ****="width:715px;"><****><****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">平均厚度 mm <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">电气强度 MV/m <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">厚度 mm <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">电气强度 MV/m <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥16.9 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">1.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥12.7 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.5 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥16.1 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">1.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥12.2 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥15.6 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.8 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.7 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥15.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.2 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.4 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.8 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥11.1 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">0.9 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.5 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.5 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.9 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥14.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.6 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.8 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.2 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥13.7 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">2.8 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.5 <****><**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64.05pt;background:#cccccc;">1.4 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥13.2 <**** valign="top" width="85" ****="border-color:#ece9d8;padding:0cm;width:64pt;background:#cccccc;">3.0 <**** valign="top" width="187" ****="border-color:#ece9d8;padding:0cm;width:140.2pt;background:#cccccc;">≥10.2
注：1 对90℃±2℃油中垂直层向电气强度，可任选20s逐级升压和1min耐压试验要求中的一种。对符合二者之一要求的材料，应视其90℃±2℃油中垂直层向电气强度是符合本标准要求的。 2 如果测得的试样厚度算术平均值是介于表中两厚度之间，则其指标值应从内插法求取。如果测得的厚度算术平均值小于0.4mm，则其电气强度指标值取≥16.9MV/m。如果标称厚度为3mm，并且测得的厚度算术平均值大于3mm时，则其电气强度的指标值取≥10.2MV/m表6吸水性 <**** class="xxmscon" ****="color:#404040;font-family:宋体;font-size:14px;line-height:22px;"><**** border="1" cellspacing="0" cellpadding="0" width="100%" ****="margin:auto auto auto 1.15pt;width:656px;"><****><****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background:#cccccc;">试样厚度平均值 mm <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background:#cccccc;">吸水性 mg <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background:#cccccc;">试样厚度平均值 mm <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background:#cccccc;">吸水性 mg <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.4 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤25 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤27 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤17 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">8 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤31 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">0.8 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">10 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤34 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.0 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">12 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤38 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.2 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤18 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">14 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤41 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">1.6 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤19 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">16 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤46 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">2.0 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤20 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">20 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤52 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">2.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤21 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">25 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤61 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">3 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤22 <**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">单面加工至22.5 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤73 <****><**** valign="top" width="216" ****="border-color:#ece9d8;padding:0cm;width:161.85pt;background-color:****ansparent;">4 <**** valign="top" width="99" ****="border-color:#ece9d8;padding:0cm;width:73.9pt;background-color:****ansparent;">≤23 <**** valign="top" width="99" ****="border-bottom-color:#ece9d8;padding:0cm;border-top-color:#ece9d8;width:73.9pt;border-right-color:#ece9d8;background-color:****ansparent;"> 

注：1如果测得的试样厚度算术平均值是介于表中两厚度之间，则其指标值应从内插法求得。2如果测得的厚度算术平均值小于0.4mm，则其指标值取≤17mg。如果标称厚度为25mm并测得的厚度算术平均值大于25mm时，则其指标值取≤61mg。标称厚度大于25mm的板材，则应从单面加工至22.5mm且加工面应是比较光滑的。
是由电工用无碱玻璃纤维布浸以环氧酚醛树脂，经烘焙、热压而成。
具有较高的机械和介电性能，较好的耐热性和耐潮性，并有良好的机械加工性，耐热等级为B级。
 适用于电机、电器设备中作为绝缘结构零部件，并可在潮温环境和变压器油中使用。
以较高的机械性能和电气性能，广泛应用在发电机、马达、电子器具上作为绝缘材料和构件。在变压器油压环境和湿度环境中也非常适用。

7、环氧树脂和所用的固化剂的反应是通过直接加成反应或树脂分子中环氧基的开环聚合反应来进行的，没有水或其它挥发性副产物放出。它们和不饱和聚酯树脂、酚醛树脂相比，在固化过程中显示出很低的收缩性（小于2%）。

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