CN103865147B - 一种具有较好拉伸强度的电容器金属化薄膜及其制备方法 - Google Patents

一种具有较好拉伸强度的电容器金属化薄膜及其制备方法 Download PDF

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CN103865147B
CN103865147B CN201410075393.2A CN201410075393A CN103865147B CN 103865147 B CN103865147 B CN 103865147B CN 201410075393 A CN201410075393 A CN 201410075393A CN 103865147 B CN103865147 B CN 103865147B
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汤广顺
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Guangdong Huilong new materials Co. Ltd.
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Abstract

本发明公开了一种具有较好拉伸强度的电容器金属化薄膜，其特征在于，由下列重量份的原料制成：高密度聚乙烯100、线性低密度聚乙烯40-45、甲壳素1-2、聚氧化丙烯三醇6-8、三羟甲基丙烷三(2-巯基乙酸酯)2-4、抗氧剂DSTP1-2、助剂5-6；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,从而使得产品特性好；添加助剂，解决了一般薄膜电容器电介质的介电常数低，耐热差，成膜性差，机械强度低等问题，具有良好的拉伸强度以及良好的耐压性和耐冲击性，同时具有热封强度高、热封性能好的特点。

Description

一种具有较好拉伸强度的电容器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，特别是一种具有较好拉伸强度的电容器金属化薄膜及其制备方法。
背景技术
薄膜电容器是以金属箔当电极，将其和聚乙酯，聚丙烯，聚笨乙烯或聚碳酸酯等塑料薄膜，从两端重叠后，卷绕成圆筒状的构造之电容器；在所有的塑料薄膜电容当中，聚丙烯(PP)电容和聚苯乙烯(PS)电容的特性最为显著，当然这两种电容器的价格也比较高，电容器的薄膜质量直接影响电容器的使用寿命和产品性能，电容器薄膜的需求量大、种类多，采用单一原料生产的薄膜很难适应市场的要求，但每种原料都有其不足之处，所以生产出来的薄膜很难满足各种情况的需求。
发明内容
本发明的目的是提供一种具有较好拉伸强度的电容器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：
一种具有较好拉伸强度的电容器金属化薄膜，由下列重量份的原料制成：高密度聚乙烯100、线性低密度聚乙烯40-45、甲壳素1-2、聚氧化丙烯三醇6-8、三羟甲基丙烷三(2-巯基乙酸酯)2-4、抗氧剂DSTP1-2、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、钙锌稳定剂2-3、氰尿酸锌1-2、2-乙基己基二苯基磷酸酯5-6、椴木灰烬1-2、纳米玉石粉0.3-0.4、亚磷酸酯8-10、聚异丁烯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、椴木灰烬、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。
本发明所述具有较好拉伸强度的电容器金属化薄膜，由以下具体步骤制成：
（1）将高密度聚乙烯、线性低密度聚乙烯、甲壳素、聚氧化丙烯三醇加热熔融，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。
本发明加工工艺简单,并且用其制作的薄膜电容器接触电阻小,从而使得产品特性好；添加助剂，解决了一般薄膜电容器电介质的介电常数低，耐热差，成膜性差，机械强度低等问题，具有良好的拉伸强度以及良好的耐压性和耐冲击性，同时具有热封强度高、热封性能好的特点。
具体实施方式
下面通过具体实例对本发明进行详细说明。
一种具有较好拉伸强度的电容器金属化薄膜，由下列重量份（公斤）的原料制成：高密度聚乙烯100、线性低密度聚乙烯40、甲壳素1、聚氧化丙烯三醇6、三羟甲基丙烷三(2-巯基乙酸酯)2、抗氧剂DSTP1、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、钙锌稳定剂2、氰尿酸锌1、2-乙基己基二苯基磷酸酯5、椴木灰烬2、纳米玉石粉0.3、亚磷酸酯8、聚异丁烯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、椴木灰烬、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。
本发明所述具有较好拉伸强度的电容器金属化薄膜，由以下具体步骤制成：
（1）将高密度聚乙烯、线性低密度聚乙烯、甲壳素、聚氧化丙烯三醇加热熔融，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≤2.5%
（2）横向拉伸强度≥16Mpa、纵向拉伸强度≥13Mpa；
（3）最小击穿电压598Vv/um。

Claims (1)

1.一种具有较好拉伸强度的电容器金属化薄膜，其特征在于，由下列重量份的原料制成：高密度聚乙烯100、线性低密度聚乙烯40-45、甲壳素1-2、聚氧化丙烯三醇6-8、三羟甲基丙烷三(2-巯基乙酸酯)2-4、抗氧剂DSTP1-2、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、钙锌稳定剂2-3、氰尿酸锌1-2、2-乙基己基二苯基磷酸酯5-6、椴木灰烬1-2、纳米玉石粉0.3-0.4、亚磷酸酯8-10、聚异丁烯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、椴木灰烬、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；
所述具有较好拉伸强度的电容器金属化薄膜由以下具体步骤制成：
（1）将高密度聚乙烯、线性低密度聚乙烯、甲壳素、聚氧化丙烯三醇加热熔融，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。
CN201410075393.2A 2014-03-04 2014-03-04 一种具有较好拉伸强度的电容器金属化薄膜及其制备方法 Expired - Fee Related CN103865147B (zh)

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CN1259541A (zh) * 2000-01-11 2000-07-12 杨卫国 通信电缆用聚乙烯护套料及制备工艺
CN101851429A (zh) * 2010-06-11 2010-10-06 奇瑞汽车股份有限公司 一种木质素复合材料及其制备方法
CN102380996A (zh) * 2011-08-03 2012-03-21 大连方盛塑料有限公司 一种食品包装塑料基材薄膜及其生产工艺
CN102964658A (zh) * 2012-10-31 2013-03-13 安徽省易达电子有限公司 一种以低密度聚乙烯为基体的电容器薄膜及其制备方法

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CA2693704C (en) * 2007-07-13 2015-12-29 Dow Global Technologies Inc. Low dielectric loss power cable sheaths comprising high pressure polyolefins free of silane functionality

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1259541A (zh) * 2000-01-11 2000-07-12 杨卫国 通信电缆用聚乙烯护套料及制备工艺
CN101851429A (zh) * 2010-06-11 2010-10-06 奇瑞汽车股份有限公司 一种木质素复合材料及其制备方法
CN102380996A (zh) * 2011-08-03 2012-03-21 大连方盛塑料有限公司 一种食品包装塑料基材薄膜及其生产工艺
CN102964658A (zh) * 2012-10-31 2013-03-13 安徽省易达电子有限公司 一种以低密度聚乙烯为基体的电容器薄膜及其制备方法

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