CN105419669A - 一种热剥离丙烯酸酯压敏胶粘带的制作方法 - Google Patents

一种热剥离丙烯酸酯压敏胶粘带的制作方法 Download PDF

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CN105419669A
CN105419669A CN201510985430.8A CN201510985430A CN105419669A CN 105419669 A CN105419669 A CN 105419669A CN 201510985430 A CN201510985430 A CN 201510985430A CN 105419669 A CN105419669 A CN 105419669A
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李国烜
何俊
王薇
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XINFENG JIELI ELECTRICAL MATERIAL CO Ltd
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Abstract

本发明涉及一种热剥离丙烯酸酯压敏胶粘带的<b>制作方法，其制备步骤是：</b>选取100份丙烯酸酯聚合物及15-40份膨胀性微球混合均匀后加入0.01-2份的异氰酸酯交联剂，涂布于基材上，涂布干胶厚度为30-60um，然后在60-90℃下烘干获得热剥离压敏胶粘带，再将制备出来的热剥离压敏胶粘带贴合25-75um的离型膜上即制得热剥离丙烯酸酯压敏胶粘带。制得的压敏胶粘带在120℃发泡时可以很好的控制胶带的卷曲方向：胶带的卷曲整齐、有规则。

Description

一种热剥离丙烯酸酯压敏胶粘带的制作方法
技术领域
本发明属于压敏胶技术领域，涉及一种热剥离丙烯酸酯压敏胶粘带的制作方法。
背景技术
近年来，随着热剥离胶带在电子元器件广泛应用外，并逐步应用到涂布或喷涂行业。在在线涂布过程中，热剥离胶带不仅要对被保护基面起到很好的保护作用、并且通过加热时可以很好的自动脱落外，还需要在加热发泡脱落时对毗邻被保护基面的非保护涂层无不良破坏影响。
目前，热剥离压敏胶粘带主要是针对加热发泡后，其粘接性能的降低或消除。但很少有对热剥离胶带加热发泡过程中对基材的卷曲方向的研究。特别是当发泡胶粘带对被粘物进行保护过程中，并且基材表面需要有一定的涂层时，这就要求被涂层可以很好的不污染被保护基面外，同时在发泡过程中对毗邻保护的非保护基面涂层无不良影响，这就要求热剥离胶带在发泡过程中可以很好的控制发泡膨胀力及基材的卷曲方向。
由于在在线涂布过程中，需要控制胶带的总体厚度。当胶带较厚时，贴合在被保护基面上时，其整体厚度增加，这样在狭缝涂布过程中，就必须要求狭缝口与基材的间距较大。因此，对于涂布浆料的粘度较小时，其严重影响了涂布精度。在发泡脱落时，当涂布浆料烘烤完全干透后，胶带表面的浆料易破坏毗邻保护界面的非保护界面上的浆料。当涂布浆料中存在大量的溶剂或还有很好的流动性时，发泡脱落过程中，若不能很好的控制热剥离胶带的卷曲方向时，就很容易造成胶带表面的浆料污染、粘损正常涂布。
发明内容
为了克服现有技术的上述缺点，本发明提供一种热剥离丙烯酸酯压敏胶粘带的制作方法，它主要针对在涂布、印刷、喷涂等过程中，需要很好的控制局部被保护基面，当加热发泡过程时：不仅可以很好的脱落、起到保护作用，同时还可以很好的不破坏非保护基面的涂层、特别是当涂层还没有完全烘干脱落过程中的局部涂层脱落。
本发明解决其技术问题所采用的技术方案是：一种热剥离丙烯酸酯压敏胶粘带的制作方法，其制备步骤是：
选取100份丙烯酸酯聚合物及15-40份膨胀性微球混合均匀后加入0.01-2份的异氰酸酯交联剂，涂布于基材上，涂布干胶厚度为30-60um，然后在60-90℃下烘干获得热剥离压敏胶粘带，再将制备出来的热剥离压敏胶粘带贴合25-75um的离型膜上即制得热剥离丙烯酸酯压敏胶粘带。
所述丙烯酸酯聚合物具有60-140份丙烯酸异辛酯、50-100份丙烯酸丁酯、0.5-1.5份偶氮二异丁腈、5-15份丙烯酸羟乙酯、5-10份甲基丙烯酸甲酯、5-10份的丙烯酸、0.1-2份的N-羟甲基丙烯酰胺、乙酸乙酯为250-400份。
所述丙烯酸酯聚合物的玻璃转化温度为-35℃至-55℃。
所述丙烯酸酯聚合物的固含为35.0%-45.0%。
所述膨胀性微球的粒径为6-40um，起始膨胀温度为80-130℃，最佳膨胀温度为105-160℃。
所述基材为10-50um的聚酯薄膜或聚酰亚胺膜，其单面表面能不低于36达因。
本发明的积极效果是：主要针对在涂布、印刷、喷涂等过程中，需要很好的控制局部被保护基面，当加热发泡过程时：不仅可以很好的脱落、起到保护作用，同时还可以很好的不破坏非保护基面的涂层、特别是当涂层还没有完全烘干脱落过程中的局部涂层脱落，制得的压敏胶粘带在120℃发泡时可以很好的控制胶带的卷曲方向：胶带的卷曲整齐、有规则。
具体实施方式
下面结合实施例对本发明进一步说明。
一种热剥离丙烯酸酯压敏胶粘带的制作方法，其制备步骤是：
选取100份丙烯酸酯聚合物及15-40份膨胀性微球混合均匀后加入0.01-2份的异氰酸酯交联剂，涂布于基材上，涂布干胶厚度为30-60um，然后在60-90℃下烘干获得热剥离压敏胶粘带，再将制备出来的热剥离压敏胶粘带贴合25-75um的离型膜上即制得热剥离丙烯酸酯压敏胶粘带。
所述丙烯酸酯聚合物具有60-140份丙烯酸异辛酯、50-100份丙烯酸丁酯、0.5-1.5份偶氮二异丁腈、5-15份丙烯酸羟乙酯、5-10份甲基丙烯酸甲酯、5-10份的丙烯酸、0.1-2份的N-羟甲基丙烯酰胺、乙酸乙酯为250-400份。
所述丙烯酸酯聚合物的玻璃转化温度为-35℃至-55℃。
所述丙烯酸酯聚合物的固含为35.0%-45.0%。
所述膨胀性微球的粒径为6-40um，起始膨胀温度为80-130℃，最佳膨胀温度为105-160℃。
所述基材为10-50um的聚酯薄膜或聚酰亚胺膜，其单面表面能不低于36达因。
本发明主要针对在涂布、印刷、喷涂等过程中，需要很好的控制局部被保护基面，当加热发泡过程时：不仅可以很好的脱落、起到保护作用，同时还可以很好的不破坏非保护基面的涂层、特别是当涂层还没有完全烘干脱落过程中的局部涂层脱落，制得的压敏胶粘带在120℃发泡时可以很好的控制胶带的卷曲方向：胶带的卷曲整齐、有规则。

Claims (6)

1.一种热剥离丙烯酸酯压敏胶粘带的制作方法，其特征在于制备步骤是：
选取100份丙烯酸酯聚合物及15-40份膨胀性微球混合均匀后加入0.01-2份的异氰酸酯交联剂，涂布于基材上，涂布干胶厚度为30-60um，然后在60-90℃下烘干获得热剥离压敏胶粘带，再将制备出来的热剥离压敏胶粘带贴合25-75um的离型膜上即制得热剥离丙烯酸酯压敏胶粘带。
2.如权利要求1所述热剥离丙烯酸酯压敏胶粘带的制作方法，其特征是：所述丙烯酸酯聚合物具有60-140份丙烯酸异辛酯、50-100份丙烯酸丁酯、0.5-1.5份偶氮二异丁腈、5-15份丙烯酸羟乙酯、5-10份甲基丙烯酸甲酯、5-10份的丙烯酸、0.1-2份的N-羟甲基丙烯酰胺、乙酸乙酯为250-400份。
3.如权利要求1所述热剥离丙烯酸酯压敏胶粘带的制作方法，其特征是：所述丙烯酸酯聚合物的玻璃转化温度为-35℃至-55℃。
4.如权利要求1所述热剥离丙烯酸酯压敏胶粘带的制作方法，其特征是：所述丙烯酸酯聚合物的固含为35.0%-45.0%。
5.如权利要求1所述热剥离丙烯酸酯压敏胶粘带的制作方法，其特征是：所述膨胀性微球的粒径为6-40um，起始膨胀温度为80-130℃，最佳膨胀温度为105-160℃。
6.如权利要求1所述热剥离丙烯酸酯压敏胶粘带的制作方法，其特征是：所述基材为10-50um的聚酯薄膜或聚酰亚胺膜，其单面表面能不低于36达因。
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Cited By (7)

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CN106398564A (zh) * 2016-08-29 2017-02-15 天津力神电池股份有限公司 易脱离式发泡胶带
CN106566428A (zh) * 2016-10-20 2017-04-19 东莞市澳中电子材料有限公司 加热膨胀失粘型压敏胶粘带及其制作方法
CN107446514A (zh) * 2016-05-31 2017-12-08 宁德新能源科技有限公司 结构胶纸及其制备方法
CN107641485A (zh) * 2016-07-21 2018-01-30 新丰杰力电工材料有限公司 热发泡胶及其制备方法
CN108498491A (zh) * 2018-06-26 2018-09-07 沈阳药科大学 一种奥昔布宁经皮吸收贴剂及其制备和应用
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CN107446514A (zh) * 2016-05-31 2017-12-08 宁德新能源科技有限公司 结构胶纸及其制备方法
CN107446514B (zh) * 2016-05-31 2020-09-11 宁德新能源科技有限公司 结构胶纸及其制备方法
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CN112521876A (zh) * 2019-09-18 2021-03-19 达迈科技股份有限公司 用于湿式、高温制程的可热剥离感压黏着片
CN111647365A (zh) * 2020-05-19 2020-09-11 安徽格林开思茂光电科技股份有限公司 一种低温热减粘胶带及其制备方法

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Application publication date: 20160323