一、環(huán)氧樹脂板廠家簡介
   環(huán)氧樹脂是泛指分子中含有兩個或兩個以上環(huán)氧基團的****高分子化合物，除個別外，它們的相對分子質(zhì)量都不高。環(huán)氧樹脂的分子結構是以分子鏈中含有活潑的環(huán)氧基團為其特征，環(huán)氧基團可以位于分子鏈的末端、中間或成環(huán)狀結構。由于分子結構中含有活潑的環(huán)氧基團，使它們可與多種類型的固化劑發(fā)生交聯(lián)反應而形成不溶、不熔的具有三向網(wǎng)狀結構的高聚物。

二、環(huán)氧樹脂板廠家應用特性
1、 形式多樣。各種樹脂、固化劑、改性劑體系幾乎可以適應各種應用對形式提出的要求，其范圍可以從極低的粘度到高熔點固體。
2、 固化方便。選用各種不同的固化劑，環(huán)氧樹脂體系幾乎可以在0～180℃溫度范圍內(nèi)固化。
3、 粘附力強。環(huán)氧樹脂分子鏈中固有的極性羥基和醚鍵的存在，使其對各種物質(zhì)具有很高的粘附力。環(huán)氧樹脂固化時的收縮性低，產(chǎn)生的內(nèi)應力小，這也有助于提高粘附強度。
4、 收縮性低。環(huán)氧樹脂和所用的固化劑的反應是通過直接加成反應或樹脂分子中環(huán)氧基的開環(huán)聚合反應來進行的，沒有水或其它揮發(fā)性副產(chǎn)物放出。它們和不飽和聚酯樹脂、酚醛樹脂相比，在固化過程中顯示出很低的收縮性（小于2%）。
5、 力學性能。固化后的環(huán)氧樹脂體系具有優(yōu)良的力學性能。
6、 電性能。固化后的環(huán)氧樹脂體系是一種具有高介電性能、耐表面漏電、耐電弧的優(yōu)良絕緣材料。
7、 化學穩(wěn)定性。通常，固化后的環(huán)氧樹脂體系具有優(yōu)良的耐堿性、耐酸性和耐溶劑性。像固化環(huán)氧體系的其它性能一樣，化學穩(wěn)定性也取決于所選用的樹脂和固化劑。適當?shù)剡x用環(huán)氧樹脂和固化劑，可以使其具有特殊的化學穩(wěn)定性能。
8、 尺寸穩(wěn)定性。上述的許多性能的綜合，使環(huán)氧樹脂體系具有突出的尺寸穩(wěn)定性和耐久性。
9、 耐霉菌。固化的環(huán)氧樹脂體系耐大多數(shù)霉菌，可以在苛刻的熱帶條件下使用。

三、環(huán)氧樹脂板廠家技術參數(shù)

1、外觀 表面應平滑，無氣泡、皺紋和裂紋。
2、標稱厚度及允許偏差見表1。
表1 　mm 

<**** border="1" cellpadding="0" cellspacing="0" ****="border-spacing:0px;color:#000000;font-family:宋體, helvetica, arial, sans-serif;font-size:12px;line-height:28px;width:715px;"><****><****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:#cccccc;">標稱厚度 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:#cccccc;">偏差 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:#cccccc;">標準厚度 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:#cccccc;">偏差 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">0.4 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.10 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">8.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±0.72 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">0.5 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.12 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">10.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±0.82 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">0.6 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.13 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">12.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±0.94 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">0.8 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.16 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">14.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.02 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">1.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.18 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">16.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.12 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">1.2 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.20 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">20.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.30 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">1.6 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.24 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">25.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.50 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">2.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.28 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">30.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.70 <****><**** colspan="2" ****="margin:0px;padding:0px;width:90.1pt;background-color:****ansparent;">2.5 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.33 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">35.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±1.95 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:88.95pt;background-color:****ansparent;">3.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.37 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">40.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±2.10 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:88.95pt;background-color:****ansparent;">4.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.45 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">45.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±2.30 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:88.95pt;background-color:****ansparent;">5.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.52 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">50.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±2.45 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:88.95pt;background-color:****ansparent;">6.0 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">±0.60 <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">60.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±2.50 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:88.95pt;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:108.4pt;background-color:****ansparent;">80.0 <**** ****="margin:0px;padding:0px;width:101.55pt;background-color:****ansparent;">±2.80 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** colspan="4" ****="margin:0px;padding:0px;width:407.3pt;background-color:****ansparent;">注： 1 其他允許偏差可由供需雙方協(xié)商。 2 對于標稱厚度不在所列的優(yōu)選厚度之一者，其允許偏差應采用下一個較大的優(yōu)選厚度的偏差。

3、平直度見表2。表2 層壓板表面距直尺的允許偏差mm

<**** border="1" cellpadding="0" cellspacing="0" ****="border-spacing:0px;color:#000000;font-family:宋體, helvetica, arial, sans-serif;font-size:12px;line-height:28px;width:715px;"><****><****><**** rowspan="2" ****="margin:0px;padding:0px;width:124.5pt;background-color:#cccccc;">厚度 （d） <**** colspan="2" ****="margin:0px;padding:0px;width:277.5pt;background-color:#cccccc;">直尺長度 <****><**** ****="margin:0px;padding:0px;width:5cm;background-color:#cccccc;">1000 <**** ****="margin:0px;padding:0px;width:135pt;background-color:#cccccc;">500 <****><**** ****="margin:0px;padding:0px;width:124.5pt;background-color:****ansparent;">1.6≤d≤3 3<> 6<> 8< d <**** ****="margin:0px;padding:0px;width:5cm;background-color:****ansparent;">見注 10 8 6 <**** ****="margin:0px;padding:0px;width:135pt;background-color:****ansparent;">見注 2.5 2.0 1.5 <****><**** colspan="3" ****="margin:0px;padding:0px;width:401.25pt;background-color:****ansparent;">>注：對標稱厚度在1.6 mm≤d≤3 mm的允許偏差正在考慮之中

4、性能要求見表4。表4性能要求

<**** border="1" cellpadding="0" cellspacing="0" ****="border-spacing:0px;color:#000000;font-family:宋體, helvetica, arial, sans-serif;font-size:12px;line-height:28px;width:715px;"><****><****><**** colspan="2" ****="margin:0px;padding:0px;width:37.6pt;background-color:#cccccc;">序 號 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:#cccccc;">指 標 名 稱 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:#cccccc;">單 位 <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:#cccccc;">指 標 值 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:#cccccc;">說明 <****><**** colspan="2" ****="margin:0px;padding:0px;width:37.6pt;background-color:****ansparent;">1 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">垂直層向彎曲強度 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MPa <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥340 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">- <****><**** colspan="2" ****="margin:0px;padding:0px;width:37.6pt;background-color:****ansparent;">2 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">平行層向沖擊強度 （簡支梁法） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">KJ/ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥33 <**** rowspan="2" ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">兩者之一滿足本標準要求即可 <****><**** colspan="2" ****="margin:0px;padding:0px;width:37.6pt;background-color:****ansparent;">3 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">平行層向沖擊強度 （懸臂梁法） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">kJ/ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥34 <****><**** colspan="2" ****="margin:0px;padding:0px;width:37.6pt;background-color:****ansparent;">4 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">垂直層向電氣強度 （90℃±2℃油中） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MV/m <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">見表5 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">- <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">5 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">平行層向擊穿電壓 （90℃±2℃油中） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">kV <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥35 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">- <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">6a <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">介電常數(shù) （48Hz-62Hz以下） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">- <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≤5.5 <**** rowspan="2" ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">兩者之一滿足本標準要求即可 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">6b <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">介電常數(shù) （1MHz以下） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">- <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≤5.5 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">7 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">馬丁溫度縱向 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">℃ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥200 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">8 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">熱穩(wěn)定性 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">℃ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">200 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">9 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">耐油性變壓器油中4h <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">℃ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">130 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">10 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">拉伸強度縱向 橫向 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MPa <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥314 ≥216 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">11 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">粘合強度 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">N <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥5600 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">12 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">表面電阻率常態(tài)時 浸水后 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MΩ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">13 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">體積電阻率常態(tài)時 浸水后 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MΩ·m <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">14 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">平行層向絕緣電阻常態(tài)時 浸水后 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">MΩ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥1× ≥1× <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">  <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">15a <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">介質(zhì)損耗因數(shù) （48Hz-62Hz以下） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">- <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≤0.04 <**** rowspan="2" ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">兩者之一滿足本標準要求即可 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">15b <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">介質(zhì)損耗因數(shù) （1MHz以下） <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">- <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≤0.04 <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">16 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">浸水后絕緣電阻 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">Ω <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">≥5.0× <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">- <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">17 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">密度 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">g/ <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">（1.7-1.9） <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">- <****><**** ****="margin:0px;padding:0px;background-color:****ansparent;">  <**** ****="margin:0px;padding:0px;width:36.45pt;background-color:****ansparent;">18 <**** ****="margin:0px;padding:0px;width:149.7pt;background-color:****ansparent;">吸水性 <**** ****="margin:0px;padding:0px;width:63.2pt;background-color:****ansparent;">mg <**** ****="margin:0px;padding:0px;width:73.7pt;background-color:****ansparent;">見表6 <**** ****="margin:0px;padding:0px;width:84.25pt;background-color:****ansparent;">-

表5垂直層向電氣強度

<**** border="1" cellpadding="0" cellspacing="0" ****="border-spacing:0px;color:#000000;font-family:宋體, helvetica, arial, sans-serif;font-size:12px;line-height:28px;width:715px;"><****><****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">平均厚度 mm <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">電氣強度 MV/m <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">厚度 mm <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">電氣強度 MV/m <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.4 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥16.9 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">1.6 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥12.7 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.5 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥16.1 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">1.8 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥12.2 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.6 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥15.6 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.0 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥11.8 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.7 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥15.2 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.2 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥11.4 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.8 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥14.8 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.4 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥11.1 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">0.9 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥14.5 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.5 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥10.9 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">1.0 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥14.2 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.6 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥10.8 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">1.2 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥13.7 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">2.8 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥10.5 <****><**** ****="margin:0px;padding:0px;width:64.05pt;background-color:#cccccc;">1.4 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥13.2 <**** ****="margin:0px;padding:0px;width:64pt;background-color:#cccccc;">3.0 <**** ****="margin:0px;padding:0px;width:140.2pt;background-color:#cccccc;">≥10.2

注：1 對90℃±2℃油中垂直層向電氣強度，可任選20s逐級升壓和1min耐壓試驗要求中的一種。對符合二者之一要求的材料，應視其90℃±2℃油中垂直層向電氣強度是符合本標準要求的。 2 如果測得的試樣厚度算術平均值是介于表中兩厚度之間，則其指標值應從內(nèi)插法求取。如果測得的厚度算術平均值小于0.4mm，則其電氣強度指標值取≥16.9MV/m。如果標稱厚度為3mm，并且測得的厚度算術平均值大于3mm時，則其電氣強度的指標值取≥10.2MV/m表6吸水性

<**** border="1" cellpadding="0" cellspacing="0" ****="border-spacing:0px;color:#000000;font-family:宋體, helvetica, arial, sans-serif;font-size:12px;line-height:28px;margin:auto auto auto 1.15pt;width:656px;"><****><****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:#cccccc;">試樣厚度平均值 mm <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:#cccccc;">吸水性 mg <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:#cccccc;">試樣厚度平均值 mm <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:#cccccc;">吸水性 mg <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">0.4 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤17 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">5 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤25 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">0.5 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤17 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">6 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤27 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">0.6 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤17 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">8 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤31 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">0.8 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤18 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">10 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤34 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">1.0 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤18 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">12 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤38 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">1.2 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤18 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">14 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤41 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">1.6 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤19 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">16 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤46 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">2.0 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤20 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">20 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤52 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">2.5 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤21 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">25 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤61 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">3 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤22 <**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">單面加工至22.5 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤73 <****><**** ****="margin:0px;padding:0px;width:161.85pt;background-color:****ansparent;">4 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;">≤23 <**** ****="margin:0px;padding:0px;width:73.9pt;background-color:****ansparent;"> 

注：1如果測得的試樣厚度算術平均值是介于表中兩厚度之間，則其指標值應從內(nèi)插法求得。2如果測得的厚度算術平均值小于0.4mm，則其指標值取≤17mg。如果標稱厚度為25mm并測得的厚度算術平均值大于25mm時，則其指標值取≤61mg。標稱厚度大于25mm的板材，則應從單面加工至22.5mm且加工面應是比較光滑的。
  環(huán)氧樹脂板是由電工用無堿玻璃纖維布浸以環(huán)氧酚醛樹脂，經(jīng)烘焙、熱壓而成。
  環(huán)氧樹脂板具有較高的機械和介電性能，較好的耐熱性和耐潮性，并有良好的機械加工性，耐熱等級為B級。
  環(huán)氧樹脂板適用于電機、電器設備中作為絕緣結構零部件，并可在潮溫環(huán)境和變壓器油中使用。
  環(huán)氧樹脂板以較高的機械性能和電氣性能，廣泛應用在發(fā)電機、馬達、電子器具上作為絕緣材料和構件。在變壓器油壓環(huán)境和濕度環(huán)境中也非常適用。

7、環(huán)氧樹脂和所用的固化劑的反應是通過直接加成反應或樹脂分子中環(huán)氧基的開環(huán)聚合反應來進行的，沒有水或其它揮發(fā)性副產(chǎn)物放出。它們和不飽和聚酯樹脂、酚醛樹脂相比，在固化過程中顯示出很低的收縮性（小于2%）。