CN105348786A - 一种等离子体改性尼龙膜工艺方法 - Google Patents

一种等离子体改性尼龙膜工艺方法 Download PDF

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CN105348786A
CN105348786A CN201510915758.2A CN201510915758A CN105348786A CN 105348786 A CN105348786 A CN 105348786A CN 201510915758 A CN201510915758 A CN 201510915758A CN 105348786 A CN105348786 A CN 105348786A
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章结兵
谢凤秀
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Suzhou Lidun Energy Storage Material Technology Co Ltd
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

本发明涉及一种等离子体改性尼龙膜工艺。该尼龙膜工艺步骤包括首先改性尼龙膜采用尼龙粒料与纳米材料在搅拌机内混合均匀，将混合均匀物料加入双螺杆挤出机中挤出；其次，水冷、切料、烘干；第三，将改性尼龙粒料在吹塑机内进行吹塑成膜；最后，在吹塑成膜收卷仓内进行亚真空或真空环境下等离子体处理，得到表面活化的尼龙膜材料。本发明采用在尼龙中添加纳米材料可有效提高尼龙的阻隔性和耐磨性，同时在尼龙膜收卷过程中对其表面进行等离子处理，提高了尼龙的表面能，该工艺下生产的尼龙膜具有优异的粘结性能。

Description

一种等离子体改性尼龙膜工艺方法
技术领域
本发明涉及尼龙材料领域，特别涉及一种等离子体改性尼龙膜工艺方法。
背景技术
尼龙是美国杰出科学家卡罗瑟斯及其团队研制出来的第一个合成纤维，尼龙是分子主链上含有重复酰胺基团-[NHCO]-的热塑性树脂总称，又名聚酰胺纤维。尼龙由于具有良好的力学性能、耐热性能、耐磨损性能、耐化学药品性能及自润滑性能，且摩擦系数小，有一定的阻燃性能，已在很多领域得到应用。
铝塑膜是聚合物锂离子电池保护电池内芯最重要的材料，为保证电池应用的安全性，铝塑膜需具有热封性能、阻隔性能及耐磨性能等特点，因而聚合物锂离子电池铝塑膜通常是由不同材料组成的复合膜，其中由于尼龙膜的耐磨性好，在聚合物锂离子电池中其作为铝塑膜的外层材料应用已成为行业的主流。但由于尼龙膜自身的表面能低，影响其与内层材料间的粘结强度，同时如何优化改进尼龙产品性能及制备方法也对提高铝塑膜品质也有十分重要的影响。
发明内容
为解决上述技术问题，本发明提供一种等离子体改性尼龙膜工艺方法。该尼龙具有优异的粘结性能和耐磨性能。
本发明的技术方案为：一种等离子体改性尼龙膜工艺方法。工艺方法步骤包括：1）改性尼龙膜采用尼龙粒料与纳米材料在搅拌机内混合均匀，将混合均匀物料加入双螺杆挤出机中挤出；2）水冷、切料、烘干；3）将改性尼龙粒料在吹塑机内进行吹塑成膜；4）在吹塑成膜收卷仓内进行亚真空或真空环境下等离子体处理，得到表面活化的尼龙膜材料。
作为本发明的一种优选方案，所述与尼龙粒料混合的纳米材料为纳米碳化硅、纳米二氧化硅、纳米蒙脱土中的一种或几种。
作为本发明的一种优选方案，所述纳米材料的粒径范围在10-100nm。
作为本发明的一种优选方案，所述纳米粒子占尼龙混合粒料的总质量配比为1-10%。
作为本发明的一种优选方案，所述尼龙膜的厚度在10-100μm。
采用上述技术方案后，本发明的有益效果：首先通过在尼龙中添加纳米材料有效提高尼龙的阻隔性和耐磨性；其次，在尼龙膜收卷过程中对其表面进行等离子处理，提高了尼龙的表面能，该工艺下生产的尼龙膜具有优异的粘结性能。
具体实施方式
下面结合具体实施方式，进一步阐明本发明。
实施例
本发明提供了一种等离子体改性尼龙膜工艺制备方法，工艺方法步骤包括：1）改性尼龙膜采用尼龙粒料与纳米材料在搅拌机内混合均匀，将混合均匀物料加入双螺杆挤出机中挤出；2）水冷、切料、烘干；3）将改性尼龙粒料在吹塑机内进行吹塑成膜；4）在吹塑成膜收卷仓内进行亚真空或真空环境下等离子体处理，得到表面活化的尼龙膜材料。
所述与尼龙粒料混合的纳米材料为纳米碳化硅、纳米二氧化硅、纳米蒙脱土中的一种或几种。
所述纳米材料的粒径范围在10-100nm。
所述纳米粒子占尼龙混合粒料的总质量配比为1-10%。
所述尼龙膜的厚度在10-100μm。
本工艺方法发明的产品经过测定达到以下指标：
1.剥离强度测试：铝箔与尼龙间的层间剥离强度大于5.5N/15mm。
2.耐电解液测试：在电解液浸泡85℃、2天以上，铝箔与尼龙间的层间剥离强度保持率大于60%。
3.抗渗透性测试：在60℃的水中浸泡5天，尼龙与铝箔间无分层，重量变化小于0.05克。
4.尼龙的穿刺强度测试：利用穿刺测试仪对其进行测试，强度大于22N。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (5)

1.一种等离子体改性尼龙膜工艺，其特征步骤在于：1）改性尼龙膜采用尼龙粒料与纳米材料在搅拌机内混合均匀，将混合均匀物料加入双螺杆挤出机中挤出；2）水冷、切料、烘干；3）将改性尼龙粒料在吹塑机内进行吹塑成膜；4）在吹塑成膜收卷仓内进行亚真空或真空环境下等离子体处理，得到表面活化的尼龙膜材料。
2.根据权利要求1中所述的一种等离子体改性尼龙膜工艺，其特征在于，所述与尼龙粒料混合的纳米材料为纳米碳化硅、纳米二氧化硅、纳米蒙脱土中的一种或几种。
3.根据权利要求1中所述的一种等离子体改性尼龙膜工艺，其特征在于，所述纳米材料的粒径范围在10-100nm。
4.根据权利要求1中所述的一种等离子体改性尼龙膜工艺，其特征在于，所述纳米粒子占尼龙混合粒料的总质量配比为1-10%。
5.根据权利要求1中所述的一种等离子体改性尼龙膜工艺，其特征在于，所述尼龙膜的厚度在10-100μm。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107189413A (zh) * 2017-06-20 2017-09-22 苏州奥宇包装科技有限公司 一种高阻隔尼龙薄膜的制备方法
CN111300784A (zh) * 2020-03-10 2020-06-19 新纶复合材料科技（常州）有限公司 一种尼龙特征及使用该特征尼龙的铝塑复合膜的制备方法
CN113629327A (zh) * 2020-05-06 2021-11-09 浙江鹏远新材料科技集团股份有限公司 锂电池软包装铝塑膜材料及其制备方法
CN114122580A (zh) * 2022-01-27 2022-03-01 沧州东鸿制膜科技有限公司 一种新能源锂电池封装用尼龙膜及其制造方法
CN114335824A (zh) * 2021-12-27 2022-04-12 江西明冠锂膜技术有限公司 一种提高铝塑膜表面附着力的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107189413A (zh) * 2017-06-20 2017-09-22 苏州奥宇包装科技有限公司 一种高阻隔尼龙薄膜的制备方法
CN111300784A (zh) * 2020-03-10 2020-06-19 新纶复合材料科技（常州）有限公司 一种尼龙特征及使用该特征尼龙的铝塑复合膜的制备方法
CN113629327A (zh) * 2020-05-06 2021-11-09 浙江鹏远新材料科技集团股份有限公司 锂电池软包装铝塑膜材料及其制备方法
CN114335824A (zh) * 2021-12-27 2022-04-12 江西明冠锂膜技术有限公司 一种提高铝塑膜表面附着力的方法
CN114122580A (zh) * 2022-01-27 2022-03-01 沧州东鸿制膜科技有限公司 一种新能源锂电池封装用尼龙膜及其制造方法
CN114122580B (zh) * 2022-01-27 2022-04-29 沧州东鸿制膜科技有限公司 一种新能源锂电池封装用尼龙膜及其制造方法

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