CN107043522A - 一种pet离型膜 - Google Patents
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Abstract
发明公开了一种PET离型膜,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层;与现有PET离型膜相比,本发明PET离型膜,其薄膜层材料通过各成分之间的协同作用,能够极大的提高其力学性能及机械性能,热封性能好,机械性能好,增加了离型膜的抗冲击强度,不易撕裂,因此可反复使用。
Description
技术领域
本发明涉及离型膜领域,特别是涉及一种PET离型膜。
背景技术
离型膜,又称剥离膜、隔离膜、分离膜、阻胶膜、离形膜、薄膜、塑料薄膜、掩孔膜、硅油膜、硅油纸、防粘膜、打滑膜、天那纸、离型纸。通常情况下为了增加塑料薄膜的离型力,会将塑料薄膜做等离子处理,或涂氟处理,或涂硅离型剂于薄膜材质的表层上,如PET、PE、OPP等等;让它对于各种不同的有机压感胶(如热融胶、亚克力胶和橡胶系的压感胶)可以表现出极轻且稳定的离型力。
由于离型膜具有隔离、填充、保护、易于剥离等优点,因此被广泛的应用于各种电子、通信、机械等领域中。
PET离型膜也叫PET硅油膜,就是在PET薄膜的表面涂上一层硅油,以降低PET薄膜表面的附着力,达离型的效果。PET离型膜具有很好的吸附性和贴合性,被广泛应包装、印刷、丝印、移印、铭板、薄膜开关、柔性线路、绝缘制品、线路板、激光防伪、贴合、电子、密封材料用膜、反光材料、防水材料、医药(膏药用纸)、卫生用纸、胶粘制品、模切冲型加工等行业领域。
随着人类文明发展及科学技术的进步,离型膜的应用越来越广泛,对离型膜的性能要求也日益严格。同时由于PET自身的理化性质,不仅仅可以作为离型膜还可以作为反射膜等,由于不同的PET膜其具体的适用范围不同,因此,对其性能的要求也有所不同。其使用也有专门的要求,其使用的兼容性不好,如果能够PET离型膜同时还具有反射膜的作用,那么,两者就可以兼用,这样其适用范围就大大的扩大。
发明内容
为此,本发明的目的是一种PET离型膜。
本发明通过以下技术方案实现:
一种PET离型膜,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层,所述薄膜层材料按重量份计由以下成分制成:PET110-120、聚乙烯树脂6-10、刚玉粉12-18、纳米膨润土4-6、多亚甲基多苯基多异氰酸酯2-5、甲基丙烯酸甲酯14-18、聚对苯二甲酸乙二醇酯1-3、水合硼酸锌1-3、乙丙橡胶2-4;所述功能离型剂层按重量份计由以下成分制成:聚二甲基硅氧烷22-24、氰基丙烯酸酯树脂3-5、滑石粉2-4。
进一步的:所述的PET分子量为25000-28000,其粒径为140目。
进一步的:所述刚玉粉粒度为750目,所述纳米膨润土的粒径为25nm。
进一步的:所述的刚玉粉与纳米膨润土质量比为3:1。
进一步的:所述聚二甲基硅氧烷的粘度为18-200mm²/s。
进一步的:所述滑石粉的粒度为600目。
进一步的:所述薄膜层材料的制备方法具体如下:按照重量配比称取所需原料,然后在氮气保护下,将PET、聚乙烯树脂、刚玉粉、纳米膨润土、多亚甲基多苯基多异氰酸酯进行搅拌均匀,加热至280℃,然后再加入甲基丙烯酸甲酯、聚对苯二甲酸乙二醇酯、水合硼酸锌、乙丙橡胶,以250r/min转速搅拌40min,然后冷却至40℃,得到混和物料,将混合物料按1:3的质量比例与四氯乙烷混合,待混合物料完全溶解后,得到混合溶解液,将混合溶解液均匀滴至载玻片上,然后置于真空烘箱中干燥,得到薄膜层材料,其厚度为1000μm。
本发明的有益效果是:与现有PET离型膜相比,本发明PET离型膜,其薄膜层材料通过各成分之间的协同作用,能够极大的提高其力学性能及机械性能,热封性能好,机械性能好,增加了离型膜的抗冲击强度,不易撕裂,因此可反复使用,尤其是提高了其光反射性能,使其兼具有反射膜的作用,应用范围进一步扩大,通过添加750目的刚玉粉与25nm纳米硅藻土的协同作用,能够极大的提高薄膜层材料的稳定性,热收缩变形率小,提高薄膜层材料表面的亲和性,能够更加紧密的结合功能离型剂层,剥离性稳定得到极大的提高,通过本发明制备的薄膜层材料与本发明配制的功能离型剂层的结合制成的离型膜,不含气泡,增加了离型膜的结构稳定性,同时离型膜的平整度高,离型膜的表面粗糙度得到极大的改善,耐候性好,剥离无残留,本发明PET离型膜使用寿命相较于普通PET离型膜使用寿命提高了20%以上。
具体实施方式
实施例1
一种PET离型膜,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层,所述薄膜层材料按重量份计由以下成分制成:PET110、聚乙烯树脂6、刚玉粉12、纳米膨润土4、多亚甲基多苯基多异氰酸酯2、甲基丙烯酸甲酯14、聚对苯二甲酸乙二醇酯1、水合硼酸锌1、乙丙橡胶2;所述功能离型剂层按重量份计由以下成分制成:聚二甲基硅氧烷22、氰基丙烯酸酯树脂3、滑石粉2。
实施例2
一种PET离型膜,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层,所述薄膜层材料按重量份计由以下成分制成:PET120、聚乙烯树脂10、刚玉粉18、纳米膨润土6、多亚甲基多苯基多异氰酸酯5、甲基丙烯酸甲酯18、聚对苯二甲酸乙二醇酯3、水合硼酸锌3、乙丙橡胶4;所述功能离型剂层按重量份计由以下成分制成:聚二甲基硅氧烷24、氰基丙烯酸酯树脂5、滑石粉4。
实施例3
一种PET离型膜,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层,所述薄膜层材料按重量份计由以下成分制成:PET115、聚乙烯树脂8、刚玉粉14、纳米膨润土5、多亚甲基多苯基多异氰酸酯3、甲基丙烯酸甲酯16、聚对苯二甲酸乙二醇酯2、水合硼酸锌2、乙丙橡胶3;所述功能离型剂层按重量份计由以下成分制成:聚二甲基硅氧烷23、氰基丙烯酸酯树脂4、滑石粉3。
上述实施例中:
所述的PET分子量为25000-28000,其粒径为140目。
所述刚玉粉粒度为750目,所述纳米膨润土的粒径为25nm。
所述的刚玉粉与纳米膨润土质量比为3:1。
所述纳米刚玉粉的粒径为30nm,所述膨润土粒度为800目。
所述纳米刚玉粉与膨润土质量比为1:1.
所述薄膜层材料的制备方法具体如下:按照重量配比称取所需原料,然后在氮气保护下,将PET、聚乙烯树脂、刚玉粉、纳米膨润土、多亚甲基多苯基多异氰酸酯进行搅拌均匀,加热至280℃,然后再加入甲基丙烯酸甲酯、聚对苯二甲酸乙二醇酯、水合硼酸锌、乙丙橡胶,以250r/min转速搅拌40min,然后冷却至40℃,得到混和物料,将混合物料按1:3的质量比例与四氯乙烷混合,待混合物料完全溶解后,得到混合溶解液,将混合溶解液均匀滴至载玻片上,然后置于真空烘箱中干燥,得到薄膜层材料。
对比例1:与实施例3的区别仅为采用普通1000μm厚度的PET薄膜作为薄膜层材料。
对比例2:与实施例3的区别仅为采用普通硅油。
对比例3:与实施例3的区别仅在于薄膜层材料制备中刚玉粉与纳米膨润土质量比为1:1。
对离型膜外观、剥离电压、表面阻抗和耐磨性等进行检测,具体检测内容如下:
(1)外观评测:通过目视观测对外观、透明度和裂纹的存在进行评价;
(2)消光测试:用手戳离型层面15次,观察是否消光;
(3)剥离电压:用滚轮将胶带压接于离型膜面,压接条件为1kg来回,速度为0.25m/min,用手以10m/min的速度快速剥离,用静电场测试仪读取剥离静电压的最大值,判断标准为静电压小于0.3KV为合格,否则反之;
(4)耐磨性测试:用钢丝面为#0000的500g/cm²的加压下对功能离型剂层摩擦30次,观察是否有擦伤痕迹;
(5)铅笔硬度测试:测试标准为GB/T 6739-2006。
经测试:
实施例1:观测雾化效果好、无裂纹,消光测试结果无消光,剥离电压为0.1KV,耐磨性测试中无擦伤痕迹,铅笔硬度为3H。
实施例2:观测雾化效果好、无裂纹,消光测试结果无消光,剥离电压为0.1KV,耐磨性测试中无擦伤痕迹,铅笔硬度为3H。
实施例3:观测雾化效果好、无裂纹,消光测试结果无消光,剥离电压为0.1KV,耐磨性测试中无擦伤痕迹,铅笔硬度为3H。
对比例1:观测雾化效果一般、有微小裂纹,消光测试结果无消光,剥离电压为0.28KV,耐磨性测试中有擦伤痕迹,铅笔硬度为H。
对比例2:观测雾化效果一般、无裂纹,消光测试结果无消光,剥离电压为0.14KV,耐磨性测试中有微小擦伤痕迹,铅笔硬度为2H。
对比例3:观测雾化效果一般、无裂纹,消光测试结果有消光,剥离电压为0.18KV,耐磨性测试中有微小擦伤痕迹,铅笔硬度为2H。
Claims (7)
1.一种PET离型膜,其特征在于,包括薄膜层材料和在薄膜层材料上涂布的功能离型剂层,所述薄膜层材料按重量份计由以下成分制成:PET110-120、聚乙烯树脂6-10、刚玉粉12-18、纳米膨润土4-6、多亚甲基多苯基多异氰酸酯2-5、甲基丙烯酸甲酯14-18、聚对苯二甲酸乙二醇酯1-3、水合硼酸锌1-3、乙丙橡胶2-4;所述功能离型剂层按重量份计由以下成分制成:聚二甲基硅氧烷22-24、氰基丙烯酸酯树脂3-5、滑石粉2-4。
2.根据权利要求1所述的PET离型膜,其特征在于:所述的PET分子量为25000-28000,其粒径为140目。
3.根据权利要求1所述的PET离型膜,其特征在于:所述刚玉粉粒度为750目,所述纳米膨润土的粒径为25nm。
4.根据权利要求3所述的PET离型膜,其特征在于:所述的刚玉粉与纳米膨润土质量比为3:1。
5.根据权利要求1所述的PET离型膜,其特征在于:所述聚二甲基硅氧烷的粘度为18-200mm²/s。
6.根据权利要求1所述的PET离型膜,其特征在于:所述滑石粉的粒度为600目。
7.根据权利要求1所述的PET离型膜,其特征在于:所述薄膜层材料的制备方法具体如下:按照重量配比称取所需原料,然后在氮气保护下,将PET、聚乙烯树脂、刚玉粉、纳米膨润土、多亚甲基多苯基多异氰酸酯进行搅拌均匀,加热至280℃,然后再加入甲基丙烯酸甲酯、聚对苯二甲酸乙二醇酯、水合硼酸锌、乙丙橡胶,以250r/min转速搅拌40min,然后冷却至40℃,得到混和物料,将混合物料按1:3的质量比例与四氯乙烷混合,待混合物料完全溶解后,得到混合溶解液,将混合溶解液均匀滴至载玻片上,然后置于真空烘箱中干燥,得到薄膜层材料。
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CN107722572A (zh) * | 2017-10-26 | 2018-02-23 | 四川羽玺电子科技有限公司 | 一种pet离型膜及其制备工艺 |
CN109181564A (zh) * | 2018-06-07 | 2019-01-11 | 苏州袭麟光电科技产业有限公司 | 一种基材可回收环保型增透光学级纳米ar屏幕保护膜 |
CN109721972A (zh) * | 2019-01-31 | 2019-05-07 | 张海涛 | 一种反射率高的pet反射膜 |
CN112143009A (zh) * | 2020-09-19 | 2020-12-29 | 上海施恺新材料技术有限公司 | 一种表面易分离的pet薄膜 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107722572A (zh) * | 2017-10-26 | 2018-02-23 | 四川羽玺电子科技有限公司 | 一种pet离型膜及其制备工艺 |
CN109181564A (zh) * | 2018-06-07 | 2019-01-11 | 苏州袭麟光电科技产业有限公司 | 一种基材可回收环保型增透光学级纳米ar屏幕保护膜 |
CN109721972A (zh) * | 2019-01-31 | 2019-05-07 | 张海涛 | 一种反射率高的pet反射膜 |
CN112143009A (zh) * | 2020-09-19 | 2020-12-29 | 上海施恺新材料技术有限公司 | 一种表面易分离的pet薄膜 |
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