CN103951883B - 一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法 - Google Patents

一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法 Download PDF

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CN103951883B
CN103951883B CN201410144841.XA CN201410144841A CN103951883B CN 103951883 B CN103951883 B CN 103951883B CN 201410144841 A CN201410144841 A CN 201410144841A CN 103951883 B CN103951883 B CN 103951883B
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鲍启兵
姚志国
郑颖
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Anhui Jiangwei Precision Manufacturing Co Ltd
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Abstract

本发明公开了一种电容器用阻燃改性等规聚丙烯金属化薄膜，其特征在于，由下列重量份的原料制成：等规聚丙烯200、水滑石粉3-4、三聚磷酸铵1-2、1,3苯二酚双(二苯基磷酸酯)2-3、废旧聚乙烯树脂粒子10-12、硬脂酸镁1-2、白油3-4、丙烯基缩水甘油醚3-5、4-甲基愈创木酚1-2、助剂5-6；本发明通过过滤，去除原料中的杂质，使原料性能好，降低了薄膜的报废率，不易破裂；采用电晕处理，提高了薄膜的耐压强度，防止击穿，而且本发明加工工艺简单,并且用其制作的薄膜电容器接触电阻小,阻燃效果好，从而使得产品特性好，生产成本低。

Description

一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法
技术领域
本发明涉及电容器制造领域，特别是一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法。
背景技术
电容器用双向拉伸聚丙烯薄膜具有较高的机械性能和电气性能，与普通型薄膜制得的电容器相比，用聚丙烯薄膜制得的电容器以其热收缩率低、性能稳定、耐高温度高等显著优点，使得聚丙烯薄膜制得的电容器的使用范围越来越广。
电容芯子是电容器的心脏，因此电容器制造芯子材质必须具有耐高频，耐高
温，阻燃，能承受大电流冲击的一种高分子聚丙烯膜作介质，才能保证整机长期稳定地工作。现有技术中大部分采用的介质为聚脂或聚丙烯光膜，电极为铝箔，也有少量产品使用聚丙烯金属化蒸镀膜。由于市场整机都面向于超薄型，微小型发展，虽然箔膜复合材料载流耐电能力强，但它的缺点是体积大不利于组装整机使用，另一缺点是聚丙烯膜与铝箔复合卷制等工艺难易控制，特别是在绕制芯子过程中因两者材质硬韧性的差异，会造成膜箔间出现间隙，至使材料在定型时热收缩不够充分，导致膜箔间容易被电击穿，报废率较高，造成了成本浪费。
发明内容
本发明的目的是提供一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法。
为了实现本发明的目的，本发明通过以下方案实施：
一种电容器用阻燃改性等规聚丙烯金属化薄膜，由下列重量份的原料制成：等规聚丙烯200、水滑石粉3-4、三聚磷酸铵1-2、1,3苯二酚双(二苯基磷酸酯)2-3、废旧聚乙烯树脂粒子10-12、硬脂酸镁1-2、白油3-4、丙烯基缩水甘油醚3-5、4-甲基愈创木酚1-2、助剂5-6；
所述助剂由下列重量份的原料制成：茂金属线性低密度聚乙烯12-15、2，6-二叔丁基对甲酚1-2、醇酯十二1-2、椴木灰烬1-2、交联剂TAC1-2、吗啉1-2、纳米玉石粉0.3-0.4、茶多酚1-2、硫代二丙酸二月桂酯2-3、玫瑰精油0.1-0.2；制备方法是将茂金属线性低密度聚乙烯加热至熔融状态，然后，加入纳米玉石粉、茶多酚搅拌10-15分钟，最后加入其它成分，搅拌分散均匀，冷却，造粒，即得。
本发明所述电容器用阻燃改性等规聚丙烯金属化薄膜，由以下具体步骤制成：
（1）将等规聚丙烯、三聚磷酸铵、1,3苯二酚双(二苯基磷酸酯)、废旧聚乙烯树脂粒子混合加热熔融，再加入助剂以及其余剩余成分充分搅拌，送入挤出机熔融、过滤，然后再通过挤出机挤出片状熔体，过滤>1200目，所述挤出机的温度为220-260℃；
（2）将步骤（1）制成的片状熔体通过激冷辊及风淋室冷却定型后制得铸片，依次进行纵向拉伸、横向拉伸、粗化面电晕处理；
（3）收卷、第一次时效处理、第二次时效处理；
（4）真空蒸发金属化膜，粗化面形成金属化层。
本发明的有益效果为：本发明通过过滤，去除原料中的杂质，使原料性能好，降低了薄膜的报废率，不易破裂；采用电晕处理，提高了薄膜的耐压强度，防止击穿，而且本发明加工工艺简单,并且用其制作的薄膜电容器接触电阻小,阻燃效果好，从而使得产品特性好，生产成本低。
具体实施方式
下面通过具体实例对本发明进行详细说明。
一种电容器用阻燃改性等规聚丙烯金属化薄膜，由下列重量份（公斤）的原料制成：等规聚丙烯200、水滑石粉3、三聚磷酸铵1、1,3苯二酚双(二苯基磷酸酯)2、废旧聚乙烯树脂粒子10、硬脂酸镁1、白油3、丙烯基缩水甘油醚3、4-甲基愈创木酚1、助剂5；
所述助剂由下列重量份（公斤）的原料制成：茂金属线性低密度聚乙烯12、2，6-二叔丁基对甲酚2、醇酯十二1、椴木灰烬1、交联剂TAC1、吗啉1、纳米玉石粉0.3、茶多酚1、硫代二丙酸二月桂酯2、玫瑰精油0.1；制备方法是将茂金属线性低密度聚乙烯加热至熔融状态，然后，加入纳米玉石粉、茶多酚搅拌10-15分钟，最后加入其它成分，搅拌分散均匀，冷却，造粒，即得。
本发明所述电容器用阻燃改性等规聚丙烯金属化薄膜，由以下具体步骤制成：
（1）将等规聚丙烯、三聚磷酸铵、1,3苯二酚双(二苯基磷酸酯)、废旧聚乙烯树脂粒子混合加热熔融，再加入助剂以及其余剩余成分充分搅拌，送入挤出机熔融、过滤，然后再通过挤出机挤出片状熔体，过滤>1200目，所述挤出机的温度为220-260℃；
（2）将步骤（1）制成的片状熔体通过激冷辊及风淋室冷却定型后制得铸片，依次进行纵向拉伸、横向拉伸、粗化面电晕处理；
（3）收卷、第一次时效处理、第二次时效处理；
（4）真空蒸发金属化膜，粗化面形成金属化层。
本发明实施例的金属化薄膜的技术指标如下：
（1）横向收缩率≤0.2%、纵向收缩率≤2.4%
（2）横向拉伸强度≥14Mpa、纵向拉伸强度≥15Mpa；
（3）最小击穿电压611Vv/um。

Claims (1)

1.一种电容器用阻燃改性等规聚丙烯金属化薄膜，其特征在于，由下列重量份的原料制成：等规聚丙烯200、水滑石粉3-4、三聚磷酸铵1-2、1,3苯二酚双(二苯基磷酸酯)2-3、废旧聚乙烯树脂粒子10-12、硬脂酸镁1-2、白油3-4、丙烯基缩水甘油醚3-5、4-甲基愈创木酚1-2、助剂5-6；所述助剂由下列重量份的原料制成：茂金属线性低密度聚乙烯12-15、2，6-二叔丁基对甲酚1-2、醇酯十二1-2、椴木灰烬1-2、交联剂TAC1-2、吗啉1-2、纳米玉石粉0.3-0.4、茶多酚1-2、硫代二丙酸二月桂酯2-3、玫瑰精油0.1-0.2；制备方法是将茂金属线性低密度聚乙烯加热至熔融状态，然后，加入纳米玉石粉、茶多酚搅拌10-15分钟，最后加入其它成分，搅拌分散均匀，冷却，造粒，即得；
所述电容器用阻燃改性等规聚丙烯金属化薄膜，由以下具体步骤制成：
（1）将等规聚丙烯、三聚磷酸铵、1,3苯二酚双(二苯基磷酸酯)、废旧聚乙烯树脂粒子混合加热熔融，再加入助剂以及其余剩余成分充分搅拌，送入挤出机熔融、过滤，然后再通过挤出机挤出片状熔体，过滤>1200目，所述挤出机的温度为220-260℃；
（2）将步骤（1）制成的片状熔体通过激冷辊及风淋室冷却定型后制得铸片，依次进行纵向拉伸、横向拉伸、粗化面电晕处理；
（3）收卷、第一次时效处理、第二次时效处理；
（4）真空蒸发金属化膜，粗化面形成金属化层。
CN201410144841.XA 2014-04-12 2014-04-12 一种电容器用阻燃改性等规聚丙烯金属化薄膜及其制备方法 Expired - Fee Related CN103951883B (zh)

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