CN105950040A - 一种抗磁无基材的ab胶及制备方法 - Google Patents

一种抗磁无基材的ab胶及制备方法 Download PDF

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CN105950040A
CN105950040A CN201610445879.XA CN201610445879A CN105950040A CN 105950040 A CN105950040 A CN 105950040A CN 201610445879 A CN201610445879 A CN 201610445879A CN 105950040 A CN105950040 A CN 105950040A
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朱文峰
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Abstract

本发明公开了一种抗磁无基材的AB胶及制备方法，具有抗电磁波效果，能有效的保护用户安全。本发明的AB胶自下而上包括：离型膜、高粘胶层、硅胶层、护膜层；离型膜表面设置有高粘胶层，高粘胶层上表面设置有硅胶层，硅胶层上表面覆一层护膜层。本发明的抗磁AB双面胶，双面中间不夹杂基材，有利于降低AB胶厚度和生产成本，能自己安装，具有抗磁效果，能有效的减少电磁辐射。

Description

一种抗磁无基材的AB胶及制备方法
技术领域
本发明涉及一种胶粘材料，具体说，是涉及一种树脂基材涂布粘胶涂层工艺，特别是抗磁无基材AB胶膜生产工艺。
背景技术
目前市场上的钢化玻璃AB双面胶，主要是以PET为基础。该AB胶生产工艺主要是先再PET基材上涂布一面硅胶后覆膜，另一面在涂布高粘胶并覆膜。其涂布工艺繁琐需要分两次涂布，增加厚度和成本且性能单一化。现有移动终端的电磁污染越来越严重，电磁波对细胞增值性较快的血球和生殖器、淋巴等组织及对儿童有害，需要具有抗电磁波效果的AB胶膜，有效的保护用户安全。
发明内容
本发明的目的是为了克服现有技术的不足，本发明提供一种抗磁无基材AB胶双面膜，AB双面胶一面是硅胶、一面是高粘胶，其中硅胶(自动排气)贴合于手机效果佳。AB双面胶用户广泛，本发明的具有抗电磁波效果的AB胶膜，能有效的保护用户安全。
为达到上述目的，本发明采用以下方案：
一种抗磁无基材的AB胶，AB胶自下而上包括：离型膜、高粘胶层、硅胶层、护膜层；离型膜(剥离层)上表面设置有高粘胶层，高粘胶层上表面设置有硅胶层，硅胶层上表面覆一层护膜层；
离型膜的厚度为23～100μm；高粘胶层的厚度为20μm～80μm；硅胶层的厚度为20μm～80μm；护膜层的厚度为30μm～100μm。
在一些实施例中，所述离型膜为PET材料；护膜层为PET、PE、OPP、BOPET、BOPP基材的其中一种；离型膜剥离力为1～8g，护膜层剥离力为6～12g之间。
在一些实施例中，所述高粘胶层的涂料组成及重量份为：
高粘胶 1～10份，
抗磁涂料 1～10份，
制备中加入溶剂 25～40份；
溶剂为乙酸乙酯、甲苯或丁酮的一种及混配物，制备后挥发掉；高粘胶为丙烯酸类、有机硅类或聚氨酯类的一种；抗磁涂料为改性炭纤维涂料；高粘胶层涂布于离型膜上面。
在一些实施例中，所述高粘胶为丙烯酸类压敏胶；改性碳纤维涂料为聚丙烯腈(PAN)基或沥青基、黏胶基、碳纤维的一种及组合。
在一些实施例中，所述离型膜厚度为50μm或65μm，高粘胶层的厚度为35μm或50μm，硅胶层的厚度为30μm或45μm，护膜层的厚度为38μm或45μm；
所述离型膜为PET材料；护膜层为OPP材料。
在一些实施例中，所述硅胶层采用有机硅类胶；离型膜剥离力为2g，护膜剥离力为8g。
一种抗磁无基材的AB胶的制备方法，方法如下：
在离型膜上涂布高粘胶层涂料，涂布工艺为微凹辊涂布、网纹辊或逗号式刮刀，制备中加入溶剂，形成高粘胶层湿膜，经过烤箱，溶剂挥发，并烤干处理，形成高粘胶层；
烘干处理后，在高粘胶层上面涂布硅胶，再做烘干处理，得到硅胶层；
在硅胶层上面覆上护膜层。
目前市场上钢化玻璃AB胶，需要在30～100μ基材上涂布。而本发明的抗磁AB双面胶，双面中间不夹杂基材，有利于降低AB胶厚度和生产成本；简化安装程序，能自己安装。高透光率92％以上，不溢胶，不影响原来的手机屏幕，无水印。具有抗磁效果，能有效的减少电磁辐射。
附图说明
图1为本发明实施例的结构示意图。
附图标记说明：
离型膜11，高粘胶层13，硅胶层15，护膜层17。
具体实施方式
为能进一步了解本发明的特征、技术手段以及所达到的具体目的、功能，解析本发明的优点与精神，藉由以下通过实施例对本发明做进一步的阐述。
本发明通过以下方法实现：抗磁无基材AB胶从下至上分别包括离型膜11，离型膜11(剥离层)上表面设置有高粘胶层13，高粘胶层13上表面设置有硅胶层15，该硅胶层15上表面覆一层护膜层17。
离型膜11的厚度为23～100μm。高粘胶层13的厚度为20μm～80μm。硅胶层15的厚度为20μm～80μm。护膜层17的厚度为30μm～100μm。
离型膜11为PET材料。护膜层17为PET、PE、OPP、BOPET、BOPP基材的其中一种。
高粘胶层13的高粘胶为丙烯酸类、有机硅类以及聚氨酯类的一种，且掺入改性碳纤维涂料，可由聚丙烯腈(PAN)基和沥青基、黏胶基、碳纤维，具有良好的导电导热性能，与其他导电填料相比具有密度小(1.5～2.0g/cm3)、电磁屏蔽性好。频率500MHz时其SE可达37dB[42,43]。
硅胶层15的硅胶为有机硅类胶。硅胶有很强的吸附能力，能自动排气贴合于手机，高粘度胶贴合于玻璃与玻璃贴合性能良好。离型膜11剥离力在1～8g之间，护膜层17剥离力6～12g之间。
在一个具体实施例中，离型膜11(剥离层)上表面设置有高粘胶层13，高粘胶层13上表面设置有硅胶层15，硅胶层15上表面覆一层护膜(护膜层17)。
制备时，先在离型膜11上涂布高粘胶层13，涂布工艺可以为微凹辊涂布、网纹辊或逗号式刮刀，形成的高粘胶层13湿膜经过烤箱，溶剂挥发并烤干处理；
烘干处理后在高粘胶层13(高粘胶面)涂布硅胶，再做烘干处理；
在硅胶层15(硅胶面)上覆上护膜(护膜层17)。
在一个具体实施例中，离型膜11的厚度为50μm，高粘胶层13的厚度为35μm，硅胶层15的厚度为30μm，护膜层17的厚度为38μm，离型膜11为PET材料，护膜(护膜层17)为PET材料。
高粘胶为丙烯酸类压敏胶，抗磁涂料为改性炭纤维。硅胶为有机硅类胶一种胶体；离型膜11剥离力在2g之间，护膜层17剥离力8g之间。
使用时先将离型膜11撕开，将高粘胶(高粘胶层13)贴合钢化玻璃，后将护膜(护膜层17)撕开，硅胶面(硅胶层15)贴合屏幕。
改性碳纤维涂料为聚丙烯腈(PAN)基或沥青基、黏胶基、碳纤维的一种及组合。
改性碳纤维涂料原料组成配比表(重量份)
原料 A组 B组 C组 D组 E组
聚丙烯腈(PAN)基 2 5 1.5
沥青基 3 2 6
黏胶基 1 2 1
碳纤维 2 1 3
以上所述实施例仅表达了本发明的部分实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明的保护范围应以所附权利要求为准。

Claims (7)

1.一种抗磁无基材的AB胶，其特征在于，所述AB胶自下而上包括：离型膜(11)、高粘胶层(13)、硅胶层(15)、护膜层(17)；所述离型膜(11)上表面设置有高粘胶层(13)，所述高粘胶层(13)上表面设置有硅胶层(15)，所述硅胶层(15)上表面覆一层护膜层(17)；
所述离型膜(11)的厚度为23～100μm；
所述高粘胶层(13)的厚度为20μm～80μm；
所述硅胶层(15)的厚度为20μm～80μm；
所述护膜层(17)的厚度为30μm～100μm。
2.根据权利要求1所述的一种抗磁无基材的AB胶，其特征在于，所述离型膜(11)为PET材料；
所述护膜层(17)为PET、PE、OPP、BOPET、BOPP基材的其中一种；
所述离型膜(11)剥离力为1～8g，所述护膜层(17)剥离力为6～12g。
3.根据权利要求1所述的一种抗磁无基材的AB胶，其特征在于，所述高粘胶层(13)的涂料组成及重量份为：
高粘胶 1～10份，
抗磁涂料 1～10份，
制备中加入溶剂 25～40份；
所述溶剂为乙酸乙酯、甲苯或丁酮的一种及混配物，制备后挥发掉；
所述高粘胶为丙烯酸类、有机硅类或聚氨酯类的一种；
所述抗磁涂料为改性炭纤维涂料；
所述高粘胶层(13)涂布于离型膜(11)上面。
4.根据权利要求3所述的一种抗磁无基材的AB胶，其特征在于，所述高粘胶为丙烯酸类压敏胶；所述改性碳纤维涂料为聚丙烯腈基或沥青基、黏胶基、碳纤维的一种及组合。
5.根据权利要求1所述的一种抗磁无基材的AB胶，其特征在于，所述离型膜(11)厚度为50μm～65μm，所述高粘胶层(13)的厚度为35μm～50μm，所述硅胶层(15)的厚度为30μm～45μm，所述护膜层(17)的厚度为38μm～45μm；
所述护膜层(17)为OPP材料。
6.根据权利要求1所述的一种抗磁无基材的AB胶，其特征在于，所述硅胶层(15)采用有机硅类胶；所述离型膜(11)剥离力为2g，护膜层(17)剥离力为8g。
7.一种如权利要求1～6任一项所述抗磁无基材的AB胶的制备方法，其特征在于，方法如下：
在离型膜(11)上涂布高粘胶层(13)涂料，涂布工艺为微凹辊涂布、网纹辊或逗号式刮刀，制备中加入溶剂，形成高粘胶层(13)湿膜，经过烤箱，溶剂挥发，并烤干处理，形成高粘胶层(13)；
烘干处理后，在高粘胶层(13)上面涂布硅胶，再做烘干处理，得到硅胶层(15)；
在硅胶层(15)上面覆上护膜层(17)。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019006909A1 (zh) * 2017-07-07 2019-01-10 深圳市汉唐福发展有限公司 一种柔性无基材的 ab 胶及其制作工艺

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Application publication date: 20160921