CN103804788A - 一种电容器用复合塑料金属化薄膜及其制备方法 - Google Patents

一种电容器用复合塑料金属化薄膜及其制备方法 Download PDF

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CN103804788A
CN103804788A CN201310708192.7A CN201310708192A CN103804788A CN 103804788 A CN103804788 A CN 103804788A CN 201310708192 A CN201310708192 A CN 201310708192A CN 103804788 A CN103804788 A CN 103804788A
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韦中祥
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Wuhu Jinying Machinery Science & Technology Development Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/005—Electrodes
    • H01G4/008—Selection of materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/005—Electrodes
    • H01G4/015—Special provisions for self-healing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Abstract

本发明公开了一种电容器用复合塑料金属化薄膜，其特征在于，由下列重量份的原料制成：等规聚丙烯200、低密度聚乙烯30-34、硼酸钠1-2、甲基三乙酰氧基硅烷2-3、硅酸钠1-2、乙二胺四乙酸2-3、甘胆酸钠1-2、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，解决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，制成的电容器的体积较小，还具有较好的高温稳定性，采用电晕处理，提高了薄膜的耐压强度，防止击穿，使用寿命长。

Description

一种电容器用复合塑料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复合塑料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。
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、耐高压，防止击穿等显著优点，使得聚丙烯薄膜制得的电容器的使用范围越来越广。
发明内容
本发明的目的是提供一种电容器用复合塑料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：
一种电容器用复合塑料金属化薄膜，由下列重量份的原料制成：等规聚丙烯200、低密度聚乙烯30-34、硼酸钠1-2、甲基三乙酰氧基硅烷2-3、硅酸钠1-2、乙二胺四乙酸2-3、甘胆酸钠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、甲基三乙氧基硅烷1-2、二茂铁1-2、椴木灰烬1-2、促进剂TMTD 1-2；制备方法是将茂金属线性低密度聚乙烯加热至熔融状态，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复合塑料金属化薄膜，由以下具体步骤制成：
（1）将等规聚丙烯、低密度聚乙烯、硼酸钠、甲基三乙酰氧基硅烷加热熔融，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，解决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，制成的电容器的体积较小，还具有较好的高温稳定性，采用电晕处理，提高了薄膜的耐压强度，防止击穿，使用寿命长。
具体实施方式
下面通过具体实例对本发明进行详细说明。
一种电容器用复合塑料金属化薄膜，由下列重量份（公斤）的原料制成：等规聚丙烯200、低密度聚乙烯30、硼酸钠1、甲基三乙酰氧基硅烷2、硅酸钠1、乙二胺四乙酸2、甘胆酸钠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、甲基三乙氧基硅烷1、二茂铁1、椴木灰烬1、促进剂TMTD 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，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复合塑料金属化薄膜，由以下具体步骤制成：
（1）将等规聚丙烯、低密度聚乙烯、硼酸钠、甲基三乙酰氧基硅烷加热熔融，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≥ 18Mpa、纵向拉伸强度≥ 13Mpa ；
（3）最小击穿电压599Vv/um 。

Claims (2)

1.一种电容器用复合塑料金属化薄膜，其特征在于，由下列重量份的原料制成：等规聚丙烯200、低密度聚乙烯30-34、硼酸钠1-2、甲基三乙酰氧基硅烷2-3、硅酸钠1-2、乙二胺四乙酸2-3、甘胆酸钠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、甲基三乙氧基硅烷1-2、二茂铁1-2、椴木灰烬1-2、促进剂TMTD 1-2；制备方法是将茂金属线性低密度聚乙烯加热至熔融状态，加入其它成分，搅拌分散均匀，冷却，造粒，即得。
2.根据权利要求1所述电容器用复合塑料金属化薄膜，其特征在于，由以下具体步骤制成：
（1）将等规聚丙烯、低密度聚乙烯、硼酸钠、甲基三乙酰氧基硅烷加热熔融，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。
CN201310708192.7A 2013-12-20 2013-12-20 一种电容器用复合塑料金属化薄膜及其制备方法 Pending CN103804788A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108997654A (zh) * 2018-09-14 2018-12-14 桐城市华猫软膜有限公司 一种电容器用复合塑料金属化薄膜

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392190A (en) * 1991-12-18 1995-02-21 Merlin Gerin Manufacturing process of a capacitor with delayed ageing and a capacitor manufactured according to this process
CN1504498A (zh) * 2002-12-03 2004-06-16 李春香 聚烯烃多微孔膜及其制备方法
CN103102582A (zh) * 2012-11-13 2013-05-15 铜陵亿亨达电子有限责任公司 一种含有改性纳米二氧化钛的电容器薄膜及其制备方法
CN103112169A (zh) * 2013-01-28 2013-05-22 宁波绿海电子材料有限公司 一种电磁炉电容器金属化膜的制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392190A (en) * 1991-12-18 1995-02-21 Merlin Gerin Manufacturing process of a capacitor with delayed ageing and a capacitor manufactured according to this process
CN1504498A (zh) * 2002-12-03 2004-06-16 李春香 聚烯烃多微孔膜及其制备方法
CN103102582A (zh) * 2012-11-13 2013-05-15 铜陵亿亨达电子有限责任公司 一种含有改性纳米二氧化钛的电容器薄膜及其制备方法
CN103112169A (zh) * 2013-01-28 2013-05-22 宁波绿海电子材料有限公司 一种电磁炉电容器金属化膜的制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108997654A (zh) * 2018-09-14 2018-12-14 桐城市华猫软膜有限公司 一种电容器用复合塑料金属化薄膜

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