CN101195685B - 全消光彩色绝缘聚酯薄膜及其生产工艺 - Google Patents

全消光彩色绝缘聚酯薄膜及其生产工艺 Download PDF

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CN101195685B
CN101195685B CN2007101414201A CN200710141420A CN101195685B CN 101195685 B CN101195685 B CN 101195685B CN 2007101414201 A CN2007101414201 A CN 2007101414201A CN 200710141420 A CN200710141420 A CN 200710141420A CN 101195685 B CN101195685 B CN 101195685B
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刘世起
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Abstract

一种全消光彩色绝缘聚酯薄膜,由消光膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料制得,三种物料的重量配比是:消光膜级聚酯切片20-30份、彩色色母粒2-6份、含二氧化硅聚酯母料2-6份。本发明的优点是:1、在电子、线材、电气等绝缘应用中不容易掉色,无污染,薄膜易分切,电气强度高,绝缘性能好。2、薄膜表面平整、光滑。3、可制得各种颜色的绝缘聚酯薄膜。

Description

全消光彩色绝缘聚酯薄膜及其生产工艺
技术领域:
本发明属于聚酯薄膜工业领域,特别涉及一种全消光彩色绝缘聚酯薄膜及其生产工艺。
背景技术:
BOPET聚酯薄膜主要用于电子、线材、电气等绝缘用途,现国内大多使用PET喷涂彩色薄膜。此膜是用白色PET薄膜静电喷涂上色的,在应用生产过程中色牢度差、工频电气强度低、绝缘性能低,因此影响绝缘材料整体质量,并且造成生产环境污染,不利于生产者的健康。
发明内容:
本发明的目的就在于克服上述现有技术中存在的不足,而提供一种全消光彩色绝缘聚酯薄膜及其生产工艺,利用该生产工艺生产出的彩色聚酯薄膜色牢度好、工频电气强度高、绝缘性能好,并且在其生产过程中不会造成环境污染。
本发明的技术方案是:一种全消光彩色绝缘聚酯薄膜,其特征在于:由消光膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料制得,三种物料的重量配比是:消光膜级聚酯切片20-30份、彩色色母粒2-6份、含二氧化硅聚酯母料2-6份。
上述膜级聚酯切片是在空白聚酯切片中加入消光剂制得。
上述含二氧化硅聚酯母料的粒径在0.5μm。
上述含二氧化硅聚酯母料中加入抗静电剂。
上述全消光彩色绝缘聚酯薄膜的生产工艺,其特征在于:依照下列步骤进行:①将消光膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料混合进行干燥、挤出,预结晶温度85-110℃,结晶度C值由10%提高到80%;干燥温度120-180℃,11-15小时,含水40ppm;②制成铸片,铸片温度控制在220-285℃,冷却转鼓的温度控制在25-40℃;③进行纵向拉伸,纵向拉伸温度控制在25-85℃,红外线温度控制在135-275℃,拉伸比3-3.7;④进行横向拉伸,横向拉伸温度控制在80-195℃,拉伸比3-4;⑤牵引、收卷。
本发明具有如下的优点和积极效果:
1、本发明的全消光彩色绝缘聚酯薄膜由于采用膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料制成,因此在电子、线材、电气等绝缘应用中不容易掉色,无污染,薄膜易分切,电气强度高,绝缘性能好。
2、薄膜表面平整、光滑。本发明的生产工艺由于科学地控制了各部分工艺温度、纵拉MDO与横拉TDO的拉伸比、拉伸点温度、收卷速度、红外线温度与加热棒工艺调整的温度,因此解决了薄膜表面不平整光洁,褶皱、撕裂、颗粒、气泡、针孔和外来杂质等问题。
附图说明:
图1是本发明的生产工艺流程图。
具体实施方式:
实施例1:全消光黄色电气绝缘聚酯薄膜及其生产工艺。
将消光膜级聚酯切片、黄色色母粒、含SiO2聚酯母料三种物料按照25∶4∶4的比例配比。其中,黄色母料选择TBY115B有机黄色母粒,这种母粒在220至285℃不分解,而且互溶性很好,没有不熔融颗粒,色牢度好,成膜性高。消光膜级聚酯切片是在空白聚酯切片中加入消光剂制得,消光剂含量为:2.5-5%。含SiO2聚酯母料的粒径控制在0.5μm左右,并且要加入抗静电剂。在满足介电常数指标要求的前提下,消光剂含量为50-100ppm,视用户要求而定。
上述全消光黄色绝缘聚酯薄膜的生产工艺,依照下列步骤进行:①将消光膜级聚酯切片、黄色色母粒和含二氧化硅聚酯母料混合进行干燥、挤出;②制成铸片,铸片温度控制在220-285℃,冷却转鼓的温度控制在25-40℃;③进行纵向拉伸,纵向拉伸温度控制在25-85℃,调整红外线温度135-275℃,拉伸比3-3.7;④进行横向拉伸,横向拉伸温度控制在80-195℃,拉伸比3-4;⑤牵引、收卷。
具体的工艺参数如下:
预结晶:温度85-110℃,结晶度C值由10%提高到80%。
干燥:温度120-160℃,12-14小时,含水40ppm。
全消光黄色聚酯薄膜铸片工艺温度:
  位置   挤出机   过滤器   熔体管线   机头   冷却转鼓
  温度/℃   220~285   275~285   275~280   275~285   25~40
全消光黄色聚酯薄膜纵向、横向拉伸工艺条件:
Figure G071E1420120070830D000031
拉膜速度:18-38M/m,根据产品规格适当调整。
通过上述工艺方法制得的全消光黄色绝缘聚酯薄膜,解决了现有彩色薄膜表面不平整光洁,色牢度差、电气强度低、绝缘性能差等问题。

Claims (4)

1.一种全消光彩色绝缘聚酯薄膜,其特征在于:由消光膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料制得,三种物料的配比是:消光膜级聚酯切片20-30份、彩色色母粒2-6份、含二氧化硅聚酯母料2-6份;所述消光膜级聚酯切片是在空白聚酯切片中加入消光剂制得。
2.根据权利要求1所述的全消光彩色绝缘聚酯薄膜,其特征在于:上述含二氧化硅聚酯母料的粒径在0.5μm。
3.根据权利要求1所述的全消光彩色绝缘聚酯薄膜,其特征在于:上述含二氧化硅聚酯母料中加入抗静电剂。
4.一种根据权利要求1所述的全消光彩色绝缘聚酯薄膜的生产工艺,其特征在于:依照下列步骤进行:①将消光膜级聚酯切片、彩色色母粒和含二氧化硅聚酯母料混合进行干燥、挤出,预结晶温度85-110℃,结晶度C值由10%提高到80%;干燥温度120-180℃,11-15小时,含水率40ppm;②制成铸片,铸片温度控制在220-285℃,冷却转鼓的温度控制在25-40℃;③进行纵向拉伸,纵向拉伸温度控制在25-85℃,红外线温度控制在135-275℃,拉伸比3-3.7;④进行横向拉伸,横向拉伸温度控制在80-195℃,拉伸比3-4;⑤牵引、收卷。
CN2007101414201A 2007-04-30 2007-08-17 全消光彩色绝缘聚酯薄膜及其生产工艺 Expired - Fee Related CN101195685B (zh)

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CN102774103A (zh) * 2012-07-30 2012-11-14 宿迁市金田塑业有限公司 一种彩色bopp消光薄膜及其生产工艺

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CN102922847A (zh) * 2012-10-10 2013-02-13 宿迁市金田塑业有限公司 一种彩色bopp薄膜及其生产工艺
CN103897355B (zh) * 2012-12-27 2015-08-26 天津世起科技发展有限公司 一种超薄聚酯薄膜及其制造方法
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CN105729817A (zh) * 2016-04-15 2016-07-06 佛山市顺德区靓迪机械有限公司 全自动塑料薄膜生产设备
CN106393918B (zh) * 2016-08-29 2019-06-07 浙江强盟实业股份有限公司 一种消光白色聚酯薄膜及其制备方法
CN107141734B (zh) * 2017-06-27 2019-03-19 仪化东丽聚酯薄膜有限公司 一种织物冷转移印花用哑光聚酯薄膜及其制备方法和应用
CN109796690A (zh) * 2018-12-30 2019-05-24 苏州市奥贝膜业有限公司 一种防静电型多颜色多膜种离型膜的制备方法
TWI790460B (zh) 2020-07-15 2023-01-21 南亞塑膠工業股份有限公司 阻燃聚酯膜及其製造方法
CN111844830B (zh) * 2020-07-28 2022-04-29 江苏恒泽复合材料科技有限公司 一种再生聚酯多彩有色薄膜的制备方法

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