CN107945938A - 一种聚酰亚胺包覆韧性电磁线 - Google Patents
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Abstract
本发明公开了一种聚酰亚胺包覆韧性电磁线,其是将合金铜导线先放入到磷化液中浸磷化处理,然后进行溶胶沉积,最后通过聚酰亚胺薄膜包覆,本发明的合金导线经过磷化处理、溶胶沉积,在磷化处理、溶胶沉积的过程中分别都进行了酸掺杂,有效的提高了抗锈性能,之后将溶胶包覆的合金采用聚酰亚胺薄膜包覆,在制备薄膜的过程中加入了松香,有效的提高了薄膜对合金的吸附效果,提高了薄膜的稳定性,增强了薄膜对合金的保护效果。
Description
技术领域
本发明属于电磁线领域,具体涉及一种聚酰亚胺包覆韧性电磁线。
背景技术
电磁线是用以制造电工产品中的线圈或绕组的绝缘电线。又称绕组线,电磁线必须满足多种使用和制造工艺上的要求。前者包括其形状、规格、能短时和长期在高温下工作,以及承受某些场合中的强烈振动和高速下的离心力,高电压下的耐受电晕和击穿,特殊气氛下的耐化学腐蚀等,后者包括绕制和嵌线时经受拉伸、弯曲和磨损的要求,以及浸渍和烘干过程中的溶胀、侵蚀作用等;
电磁线主要用于变压器、电动机以及各种电气设备的绕组中,现有技术中的电磁线是在导体上包覆绝缘层,通常具有以下缺点:(1)绝缘结构不合理,电磁线的封闭性不好,易水解,耐水性能不佳;(2)采用进口材料,制造成本高昂,不适合普遍使用。因而,亟需一种绝缘和耐水性能都较好,且成本较低而可以普遍适用的电磁线。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种聚酰亚胺包覆韧性电磁线。
为实现上述目的,本发明采用以下技术方案:
一种聚酰亚胺包覆韧性电磁线,其是将合金铜导线先放入到磷化液中浸磷化处理,然后进行溶胶沉积,最后通过聚酰亚胺薄膜包覆。
所述的磷化液是由下述重量份的原料混合组成的:
磷酸二氢锌100-110、磷酸6-10、硝酸铵2-4、硝酸钙6-9、三聚硫氰酸0.3-1、含氢硅油4-6、sp-80 2-3、去离子水700-800。
所述的溶胶是由下述重量份的原料混合组成的:
异丙醇铝20-30、对甲苯磺酸0.4-1、蓖麻油酸2-3、去离子水100、sp-80 0.4-1。
所述的聚酰亚胺薄膜是由下述重量份的原料组成的:
聚酰亚胺100-110、松香5-6、二苯基咪唑啉0.7-1、单硬脂酸甘油酯1-2、γ-缩水甘油醚氧丙基三甲氧基硅烷0.4-1、季戊四醇3-4、溶剂150-200、聚乙烯吡咯烷酮20-25。
所述的溶剂为乙酸乙酯、四氢呋喃中的一种。
所述的聚酰亚胺薄膜的制备方法,包括以下步骤:
(1)取松香,加热软化,加入到上述聚乙烯吡咯烷酮中,搅拌均匀,加入γ-缩水甘油醚氧丙基三甲氧基硅烷,在60-65℃下保温搅拌1-2小时,得硅烷改性松香溶液;
(2)取季戊四醇,加入到其重量10-15倍的75-80的无水乙醇溶液中,搅拌均匀,加入二苯基咪唑啉,升高温度为90-95℃,保温搅拌10-20分钟,加入单硬脂酸甘油酯,搅拌至常温,得醇乳液;
(3)取上述硅烷改性松香溶液、醇乳液混合,搅拌均匀,加入聚酰亚胺,超声10-20分钟,蒸馏除去乙醇,送入烘箱中,在80-85℃下干燥至含水量为0-1.5%;
(4)取上述干燥后的物料,加入到上述溶剂中,搅拌均匀,旋涂成膜,即得。
所述的磷化处理温度为75-80℃,处理时间为2-4分钟。
所述的溶胶沉积处理温度为30-35℃,处理时间为4-5小时。
本发明的优点:
本发明的合金导线经过磷化处理、溶胶沉积,在磷化处理、溶胶沉积的过程中分别都进行了酸掺杂,有效的提高了抗锈性能,之后将溶胶包覆的合金采用聚酰亚胺薄膜包覆,在制备薄膜的过程中加入了松香,有效的提高了薄膜对合金的吸附效果,提高了薄膜的稳定性,增强了薄膜对合金的保护效果。
具体实施方式
实施例1
一种聚酰亚胺包覆韧性电磁线,其是将合金铜导线先放入到磷化液中浸磷化处理,然后进行溶胶沉积,最后通过聚酰亚胺薄膜包覆。
所述的磷化液是由下述重量份的原料混合组成的:
磷酸二氢锌110、磷酸10、硝酸铵4、硝酸钙9、三聚硫氰酸1、含氢硅油6、sp-80 3、去离子水800。
所述的溶胶是由下述重量份的原料混合组成的:
异丙醇铝20-30、对甲苯磺酸0.4-1、蓖麻油酸3、去离子水100、sp-80 1。
所述的聚酰亚胺薄膜是由下述重量份的原料组成的:
聚酰亚胺110、松香6、二苯基咪唑啉1、单硬脂酸甘油酯2、γ-缩水甘油醚氧丙基三甲氧基硅烷1、季戊四醇4、溶剂200、聚乙烯吡咯烷酮25。
所述的溶剂为乙酸乙酯。
所述的聚酰亚胺薄膜的制备方法,包括以下步骤:
(1)取松香,加热软化,加入到上述聚乙烯吡咯烷酮中,搅拌均匀,加入γ-缩水甘油醚氧丙基三甲氧基硅烷,在65℃下保温搅拌2小时,得硅烷改性松香溶液;
(2)取季戊四醇,加入到其重量15倍的80%无水乙醇溶液中,搅拌均匀,加入二苯基咪唑啉,升高温度为95℃,保温搅拌20分钟,加入单硬脂酸甘油酯,搅拌至常温,得醇乳液;
(3)取上述硅烷改性松香溶液、醇乳液混合,搅拌均匀,加入聚酰亚胺,超声20分钟,蒸馏除去乙醇,送入烘箱中,在85℃下干燥至含水量为1.5%;
(4)取上述干燥后的物料,加入到上述溶剂中,搅拌均匀,旋涂成膜,即得。
所述的磷化处理温度为80℃,处理时间为4分钟。
所述的溶胶沉积处理温度为35℃,处理时间为5小时。
性能测试:
涂层厚度30μm,采用铝箔法进行直线击穿电压试验,击穿电压实测值在10000V以上;将本发明实施例1的电磁线放入到湿度为80%、温度为35℃的环境下,放置30天,干燥后进行直线击穿电压试验,击穿电压实测值仍让在10000V以上;
绝缘附着性:拉伸10%,绝缘层失去附着性的部分不超过1/2导体宽边宽度;
实施例2
一种聚酰亚胺包覆韧性电磁线,其是将合金铜导线先放入到磷化液中浸磷化处理,然后进行溶胶沉积,最后通过聚酰亚胺薄膜包覆。
所述的磷化液是由下述重量份的原料混合组成的:
磷酸二氢锌100、磷酸6、硝酸铵2、硝酸钙6、三聚硫氰酸0.3、含氢硅油4、sp-80 2、去离子水700。
所述的溶胶是由下述重量份的原料混合组成的:
异丙醇铝20、甲苯磺酸0.4、蓖麻油酸2、去离子水100、sp-800.4。
所述的聚酰亚胺薄膜是由下述重量份的原料组成的:
聚酰亚胺100、松香5、苯基咪唑啉0.7、单硬脂酸甘油酯1、γ-缩水甘油醚氧丙基三甲氧基硅烷0.4、季戊四醇3、溶剂150、聚乙烯吡咯烷酮20。
所述的溶剂为四氢呋喃。
所述的聚酰亚胺薄膜的制备方法,包括以下步骤:
(1)取松香,加热软化,加入到上述聚乙烯吡咯烷酮中,搅拌均匀,加入γ-缩水甘油醚氧丙基三甲氧基硅烷,在60℃下保温搅拌1小时,得硅烷改性松香溶液;
(2)取季戊四醇,加入到其重量10倍的75%的无水乙醇溶液中,搅拌均匀,加入二苯基咪唑啉,升高温度为90℃,保温搅拌10分钟,加入单硬脂酸甘油酯,搅拌至常温,得醇乳液;
(3)取上述硅烷改性松香溶液、醇乳液混合,搅拌均匀,加入聚酰亚胺,超声10分钟,蒸馏除去乙醇,送入烘箱中,在80℃下干燥完全;
(4)取上述干燥后的物料,加入到上述溶剂中,搅拌均匀,旋涂成膜,即得。
所述的磷化处理温度为75℃,处理时间为2分钟。
所述的溶胶沉积处理温度为30℃,处理时间为4小时。
性能测试:
涂层厚度24μm,采用铝箔法进行直线击穿电压试验,击穿电压实测值在10000V以上;将本发明实施例2的电磁线放入到湿度为80%、温度为35℃的环境下,放置30天,干燥后进行直线击穿电压试验,击穿电压实测值仍让在10000V以上;
绝缘附着性:拉伸13%,绝缘层失去附着性的部分不超过1/2导体宽边宽度。
Claims (8)
1.一种聚酰亚胺包覆韧性电磁线,其特征在于,其是将合金铜导线先放入到磷化液中浸磷化处理,然后进行溶胶沉积,最后通过聚酰亚胺薄膜包覆。
2.根据权利要求1所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的磷化液是由下述重量份的原料混合组成的:
磷酸二氢锌100-110、磷酸6-10、硝酸铵2-4、硝酸钙6-9、三聚硫氰酸0.3-1、含氢硅油4-6、sp-80 2-3、去离子水700-800。
3.根据权利要求1所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的溶胶是由下述重量份的原料混合组成的:
异丙醇铝20-30、对甲苯磺酸0.4-1、蓖麻油酸2-3、去离子水100、sp-80 0.4-1。
4.根据权利要求1所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的聚酰亚胺薄膜是由下述重量份的原料组成的:
聚酰亚胺100-110、松香5-6、二苯基咪唑啉0.7-1、单硬脂酸甘油酯1-2、γ-缩水甘油醚氧丙基三甲氧基硅烷0.4-1、季戊四醇3-4、溶剂150-200、聚乙烯吡咯烷酮20-25。
5.根据权利要求4所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的溶剂为乙酸乙酯、四氢呋喃中的一种。
6.根据权利要求4所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的聚酰亚胺薄膜的制备方法,包括以下步骤:
(1)取松香,加热软化,加入到上述聚乙烯吡咯烷酮中,搅拌均匀,加入γ-缩水甘油醚氧丙基三甲氧基硅烷,在60-65℃下保温搅拌1-2小时,得硅烷改性松香溶液;
(2)取季戊四醇,加入到其重量10-15倍的75-80的无水乙醇溶液中,搅拌均匀,加入二苯基咪唑啉,升高温度为90-95℃,保温搅拌10-20分钟,加入单硬脂酸甘油酯,搅拌至常温,得醇乳液;
(3)取上述硅烷改性松香溶液、醇乳液混合,搅拌均匀,加入聚酰亚胺,超声10-20分钟,蒸馏除去乙醇,送入烘箱中,在80-85℃下干燥至含水量为0-1.5%;
(4)取上述干燥后的物料,加入到上述溶剂中,搅拌均匀,旋涂成膜,即得。
7.根据权利要求1所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的磷化处理温度为75-80℃,处理时间为2-4分钟。
8.根据权利要求1所述的一种聚酰亚胺包覆韧性电磁线,其特征在于,所述的溶胶沉积处理温度为30-35℃,处理时间为4-5小时。
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