CN109096903A - 一种高耐热性漆包线漆及其制作方法 - Google Patents
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Abstract
本发明公开了一种高耐热性漆包线漆及其制作方法。它包括甲基吡咯烷酮230‑250 g,N‑N二甲基甲酰胺500‑510 g,MDI 270‑280 g,偏苯三酸酐410‑430g,间苯二甲酸15‑20 g,对苯二甲酸20‑25 g,环己酮2‑5 g,溶剂油410‑430 g。采用上述的配方和方法后,由于合理选用了各种成分配方以及限定了各种成分配方的比例,另外,特别是制作过程中通过分步加入并且对工艺进行优化匹配,特别是对温度的升降温控制过程,由此使得制备出的漆包线漆,不但耐热性好,耐温等级高,而且产品品质得到有效提高,效果十分突出。
Description
技术领域
本发明涉及一种漆包线漆生产技术,具体地说是一种高耐热性漆包线漆及其制作方法。
背景技术
漆包线主要用作绕组线圈,其作用是在元器件工作的过程中,实现“电-磁”能量转换,所以漆包线也叫电磁线。漆包线漆的作用是使绕组中导线与导线之间产生一层良好的绝缘层,以阻止电流的流通。漆包线漆属于电气绝缘漆,除了要求具有良好的介电性、化学性能外,还必须具有优良的机械性能和热性能。随着工业电器、家用电器、电讯、电子产品等的迅速发展,近几年漆包线市场需求量急剧膨胀,这给漆包线产业带来了较广阔的应用领域和市场。
目前常用的漆包线漆种类有缩醛、聚氨酯、聚酯、聚酯亚胺、聚酰胺酰亚胺、聚酯-酰胺亚胺等。然而,对于聚氨酯漆包线漆来说,由于其产品原料及生产方法的限制,容易存在品质不稳定、耐热性能差等问题。
发明内容
本发明要解决的技术问题是提供一种耐热性高且产品品质高的高耐热性漆包线漆及其制作方法。
为了解决上述技术问题,本发明的高耐热性漆包线漆,包括甲基吡咯烷酮230-250g,N-N二甲基甲酰胺500-510 g,MDI 270-280 g,偏苯三酸酐410-430g,间苯二甲酸15-20g,对苯二甲酸20-25 g,环己酮2-5 g,溶剂油410-430 g。
一种如上述高耐热性漆包线漆的制作方法,具体操作步骤如下:
A、常温条件下向反应釜内加入甲基吡咯烷酮230-250 g,N-N二甲基甲酰胺500-510 g,MDI 270-280 g,偏苯三酸酐410-430g,间苯二甲酸15-20 g,对苯二甲酸20-25 g,缓慢升温至85-95℃,保持温度1-3小时;
B、升温至120-140℃,保持温度2-4小时;
C、缓慢升温至150-160℃后,当温度达到150-160℃,保持温度1-2小时,取样检测粘度达到70-90PS,即可终止反应,加入环己酮2-5 g,溶剂油410-430 g ,1-2小时滴完即可。
所述步骤C中缓慢升温至150-160℃后需要观察釜内液面变化。
采用上述的配方和方法后,由于合理选用了各种成分配方以及限定了各种成分配方的比例,另外,特别是制作过程中通过分步加入并且对工艺进行优化匹配,特别是对温度的升降温控制过程,由此使得制备出的漆包线漆,不但耐热性好,耐温等级高,而且产品品质得到有效提高,效果十分突出。
具体实施方式
下面结合具体实施方式,对本发明的高耐热性漆包线漆及其制作方法作进一步详细说明。
实施例一:
本实施例的高耐热性漆包线漆及其制作方法,具体操作步骤如下:
A、常温条件下向反应釜内加入甲基吡咯烷酮230 g,N-N二甲基甲酰胺500 g,MDI270g,偏苯三酸酐410g,间苯二甲酸15 g,对苯二甲酸20-25 g,缓慢升温至85℃,保持温度1小时;
B、升温至120℃,保持温度2小时;
C、缓慢升温至150℃后,观察反应釜内液面变化,当温度达到150℃,保持温度1小时,粘度进入70PS范围内,即可终止反应,加入环乙酮2g,溶剂油410g经过1小时后滴完即可。
实施例二:
本实施例的高耐热性漆包线漆及其制作方法,具体操作步骤如下:
A、常温条件下向反应釜内加入甲基吡咯烷酮243 g,N-N二甲基甲酰胺508g,MDI 279g,偏苯三酸酐421g,间苯二甲酸18g,对苯二甲酸23 g,缓慢升温至90℃,保持温度2小时;
B、升温至130℃,保持温度3小时;
C、缓慢升温至155℃后,观察釜内液面变化,当温度达到155℃,保持温度1小时,粘度进入80PS范围内,即可终止反应,加入环乙酮3 g,溶剂油422 g,经过1小时后滴完即可。
经过试验验证,采用该实施例制备的的漆包线漆,介质拐点达到300℃,高于常规漆包线漆100多度,而软化击穿值达到550℃不会击穿,高于常规漆包线漆420多度就会击穿,证明了耐热性的效果相当明显。
实施例三:
本实施例的高耐热性漆包线漆及其制作方法,具体操作步骤如下:
A、常温条件下向反应釜内加入甲基吡咯烷酮250 g,N-N二甲基甲酰胺510 g,MDI 280g,偏苯三酸酐430g,间苯二甲酸15-20 g,对苯二甲酸20-25 g,缓慢升温至95℃,保持温度3小时;
B、升温至140℃,保持温度4小时;
C、缓慢升温至160℃后,观察釜内液面变化,当温度达到160℃,保持温度2小时,粘度进入90PS范围内,即可终止反应,加入环乙酮5 g,溶剂油430 g,经过2小时后滴完即可。
Claims (3)
1.一种高耐热性漆包线漆,其特征在于:包括甲基吡咯烷酮230-250 g,N-N二甲基甲酰胺500-510 g,MDI 270-280 g,偏苯三酸酐410-430g,间苯二甲酸15-20 g,对苯二甲酸20-25 g,环己酮2-5 g,溶剂油410-430 g。
2.一种如权利要求1所述高耐热性漆包线漆的制作方法,其特征在于,具体操作步骤如下:
A、常温条件下向反应釜内加入甲基吡咯烷酮230-250 g,N-N二甲基甲酰胺500-510 g,MDI 270-280 g,偏苯三酸酐410-430g,间苯二甲酸15-20 g,对苯二甲酸20-25 g,缓慢升温至85-95℃,保持温度1-3小时;
B、升温至120-140℃,保持温度2-4小时;
C、缓慢升温至150-160℃后,当温度达到150-160℃,保持温度1-2小时,取样检测粘度达到70-90PS,即可终止反应,加入环己酮2-5 g,溶剂油410-430 g,1-2小时滴完即可。
3.按照权利要求2所述的高耐热性漆包线漆的制作方法,其特征在于:所述步骤C中缓慢升温至150-160℃后需要观察釜内液面变化。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08283659A (ja) * | 1995-04-07 | 1996-10-29 | Fujikura Ltd | ウレタンワニス |
CN102190955A (zh) * | 2011-04-06 | 2011-09-21 | 丹阳四达化工有限公司 | 一种混合溶剂制备聚酰胺酰亚胺漆包线漆的方法 |
CN103275609A (zh) * | 2011-06-09 | 2013-09-04 | 常州虹波涂料有限公司 | 聚氨酯漆包线漆的制备方法 |
CN105985723A (zh) * | 2015-02-05 | 2016-10-05 | 丹阳四达化工有限公司 | 一种聚酯酰胺亚胺漆包线漆及其制备方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08283659A (ja) * | 1995-04-07 | 1996-10-29 | Fujikura Ltd | ウレタンワニス |
CN102190955A (zh) * | 2011-04-06 | 2011-09-21 | 丹阳四达化工有限公司 | 一种混合溶剂制备聚酰胺酰亚胺漆包线漆的方法 |
CN103275609A (zh) * | 2011-06-09 | 2013-09-04 | 常州虹波涂料有限公司 | 聚氨酯漆包线漆的制备方法 |
CN105985723A (zh) * | 2015-02-05 | 2016-10-05 | 丹阳四达化工有限公司 | 一种聚酯酰胺亚胺漆包线漆及其制备方法 |
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