CN114752013B - 一种耐高温丙烯酸泡棉胶胶带的制备方法 - Google Patents
一种耐高温丙烯酸泡棉胶胶带的制备方法 Download PDFInfo
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Abstract
本发明提供一种耐高温丙烯酸泡棉胶胶带的制备方法,通过UV固化形成预聚物,向该预聚物中添加助剂组合物、引发剂组合物和微胶囊发泡剂再次UV固化,之后在基材两侧涂面胶形成夹心结构使泡棉具有良好的剥离力与初粘性能,然后通过高温发泡形成泡棉胶带使其具有较高的拉伸强度,柔韧性、耐高温性能。
Description
技术领域
本文涉及到的一种耐高温丙烯酸泡棉胶胶带的制备方法,属于压敏胶粘剂领域。
背景技术
随着科技的进步,手机和汽车行业的不断发展,对丙烯酸泡棉胶提出了更高的标准,要求丙烯酸泡棉具有高韧性、较高的应力分散性能,短期高温剪切性能没有明显变化,泡棉胶带要具有优良的浸润性、持粘性、耐候性、防水性、密封性、抗压缩变形性等,根据不同的厚度和功能选择,普遍应用于电子电器、机械零部件、各类小家电、手机配件、工业仪表、电脑及周边设备、汽车配件、影音器材、玩具、化妆品等领域。
因此,开发一种在粘接力方面,可出色地浸润粗糙与不平整的粘接表面。实现强有力的持久粘接。在应力分散方面,能够在部件的整个使用周期内出色地补偿静态或动态应力,适用于曲面粘接,能够用独特的粘弹性能分散外部应力,确保粘接牢固持久,当温度极端变化时,可弥补不同材料间的热胀冷缩才能满足手机和汽车行业的不断发展。
发明内容
本发明目的是针对现有技术中丙烯酸泡棉粘合剂填充性能、耐温性和柔韧性较差,本发明提供一种耐高温丙烯酸泡棉胶胶带的制备方法。
为达以上目的,具体方案如下:
一种耐高温丙烯酸泡棉基材,原料包括:丙烯酸异辛酯-丙烯酸共聚物70-90重量份、丙烯酸类单体稀释剂2-8重量份、引发剂0.01-3重量份、带有异氰酸酯官能团的交联剂0.01-1-1%、带有乙氧基官能团的交联剂0.01-1-1%,填料1-8重量份。
一种丙烯酸泡棉面胶,原料包括:丙烯酸异辛酯-丙烯酸共聚物70-90重量份、丙烯酸类单体稀释剂2-8重量份、引发剂0.01-3重量份、带有异氰酸酯官能团的交联剂0.01-1-1%、带有乙氧基官能团的交联剂0.01-1%。
本发明技术方案优选地,所述一种耐高温丙烯酸泡棉基材,其制备方法为:85-95重量份的丙烯酸异辛酯和5-15重量份的丙烯酸,加入重量为聚合单体总重量0.001%~1%的硫醇类分子量调节剂,加入重量为聚合单体总重量0.001%~3%的引发剂,其混合物用纯度为99.99%的氮气保护,在波长为340-390nm光照强度为50-100mj/cm2照射条件下反应40-60s,停止反应,冷却至常温,可得到丙烯酸异辛酯-丙烯酸共聚物。
优选地,所述引发剂为苯基双(2,4,6-三甲基苯甲酰基)氧化膦。
优选地,所述填料为25um微胶囊发泡剂。
优选地,所述丙烯酸类单体稀释剂为带有羧基的与异氰酸酯官能团反应的丙烯酸类单体。
本发明技术方案优选地,所述丙烯酸泡棉胶基材,其制备方法为:1)称取丙烯酸异辛酯-丙烯酸共聚物、丙烯酸、引发剂、带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂、填料;2)丙烯酸异辛酯-丙烯酸共聚物、丙烯酸、丙烯酸羟乙酯、引发剂,带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂,填料,搅拌均匀;3)涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材。
本发明技术方案优选地,所述丙烯酸泡棉面胶,其制备方法为:1))称取丙烯酸异辛酯-丙烯酸共聚物、引发剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体、带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂;2)向反应釜中加入丙烯酸异辛酯-丙烯酸共聚物、引发剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体、带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂,搅拌均匀。
本发明技术方案优选地,所述耐高温丙烯酸泡棉胶胶带,1)丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化,2)把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化3)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
本发明与现有技术不同之处在于本发明取得了如下技术效果:
发明技术的丙烯酸泡棉胶胶带具有低密度,较高的拉伸强度,柔韧性,耐高温性能和优良的剥离强度。
具体实施方式
下面将结合本发明中的实施例,对分发明中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
第一部分:
制备丙烯酸异辛酯-丙烯酸共聚物,加入90.945重量份的丙烯酸异辛酯和9重量份的丙烯酸的聚合单体,加入0.05重量份的光引发剂,加0.005重量份的硫醇类分子量调节剂,用纯度为99.99%的氮气保护,在波长为340-390nm光照强度为50-100mj/cm2照射条件下反应40-60s,得到丙烯酸异辛酯-丙烯酸共聚物A。
实施例1
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂5g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例2
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂3g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例3
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂2g;
50um玻璃微珠3g;
25um气相二氧化硅1g;
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂、气相二氧化硅、玻璃微珠,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例4一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂2g;
50um玻璃微珠3g;
25um气相二氧化硅1g;
丙烯酸3g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物A100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、丙烯酸、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物A、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
将对上述的实施例1-4的4个实施例的高温色变压敏胶进行测试试验,测试结果如下:
通过以上实施例1-4的测试数据,通过高温发泡形成泡棉胶带后可以看出实施例4具有良好的剥离力与初粘性能、较高的拉伸强度,柔韧性、耐高温性能。
第二部分:
制备丙烯酸异辛酯-丙烯酸共聚物,91.954重量份的丙烯酸异辛酯和8重量份的丙烯酸,加0.05重量份的光引发剂,加0.005重量份的硫醇类分子量调节剂,用纯度为99.99%的氮气保护,在波长为340-390nm光照强度为50-100mj/cm2照射条件下反应40-60s,得到丙烯酸异辛酯-丙烯酸共聚物B。
实施例5
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂1g。
丙烯酸6g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂、丙烯酸,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例6
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂2g;
丙烯酸5g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂、丙烯酸,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例7
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂3g;
丙烯酸4g;
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂、丙烯酸然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、带有羧基的与异氰酸酯官能团反应的丙烯酸类单体,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
实施例8
一种耐高温丙烯酸泡棉基材,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.1g;
带有乙氧基官能团的交联剂0.2g;
带有异氰酸酯官能团的交联剂0.05g;
25um微胶囊发泡剂3g;
丙烯酸5g。
一种丙烯酸泡棉面胶,称取如下原料:
丙烯酸异辛酯-丙烯酸共聚物B100g;
苯基双(2,4,6-三甲基苯甲酰基)氧化膦0.4g;
带有乙氧基官能团的交联剂0.1g;
带有异氰酸酯官能团的交联剂0.05g;
带有羧基的与异氰酸酯官能团反应的丙烯酸类单体5g。
丙烯酸泡棉基材制备方法为:1)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、丙烯酸、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、25um微胶囊发泡剂、丙烯酸,然后搅拌均匀;2)将搅拌均匀的丙烯酸泡棉基材胶水脱泡,然后涂布在底层离型膜上,敷上顶层离型膜,再经过2000-3000mj/cm2紫外光照射固化制得丙烯酸泡棉胶基材;3)向反应釜加入丙烯酸异辛酯-丙烯酸共聚物B、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、带有乙氧基官能团的交联剂、带有异氰酸酯官能团的交联剂、丙烯酸羟乙酯,然后搅拌均匀;4)将搅拌均匀的丙烯酸泡棉面胶胶水脱泡,撕下敷在丙烯酸泡棉基材的顶层离型膜,把丙烯酸泡棉面胶胶水涂布在丙烯酸泡棉基材上,再敷上顶层离型膜,经过2000-3000mj/cm2紫外光照射固化;5)再把丙烯酸泡棉面胶涂布在丙烯酸泡棉基材另一面上,敷上离型膜,再经过2000-3000mj/cm2紫外光照射固化6)经过120℃烤箱烘烤发泡2min后制得耐高温丙烯酸泡棉胶胶带。
通过以上实施例5-8的测试数据,通过调整微胶囊发泡剂含量可以有效控制丙烯酸泡棉胶胶带密度,通过调整丙烯酸的含量可以有效控制丙烯酸泡棉胶胶的拉伸强度与硬度。
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,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (3)
1.一种耐高温丙烯酸泡棉胶胶带,其特征在于:其制备方法为:
撕下UV泡棉基材一侧离型膜涂上UV泡棉面胶组合物,敷上离型膜,在波长340-390nm光照下固化,然后另一侧也撕下UV泡棉基材一侧的离型膜,涂上UV泡棉面胶组合物,敷上离型膜,在波长340-390nm光照下固化,之后通过100-150℃高温烘烤发泡形成一种耐高温丙烯酸泡棉胶胶带;
所述UV泡棉基材为在UV泡棉基材组合物两侧敷上离型膜,在波长为340-390nm光照下固化而成;
所述UV泡棉基材组合物包括以下原料:
UV预聚物;
多官能交联剂:添加量为UV预聚物重量的0.1%~2%;
光引发剂:添加量为UV预聚物重量的0.05%~3%;
填料:添加量为UV预聚物重量的1%~8%;
丙烯酸类单体稀释剂:添加量为UV预聚物重量的2-10%;
所述UV泡棉基材组合物中的多官能交联剂为带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂中的至少一种;所述光引发剂为苯基双(2,4,6-三甲基苯甲酰基)氧化膦;所述填料为50um微胶囊发泡剂、25um微胶囊发泡剂、15um微胶囊发泡剂中的至少一种;所述丙烯酸类单体稀释剂为丙烯酸;
所述UV泡棉面胶组合物包括以下原料:
UV预聚物;
多官能交联剂:添加量为UV预聚物重量的0.1%~2%;
光引发剂:添加量为UV预聚物重量的0.1%~3%;
丙烯酸类单体稀释剂:添加量为UV预聚物重量的2-10%;
所述UV泡棉面胶组合物中的多官能交联剂为带有异氰酸酯官能团的交联剂、带有乙氧基官能团的交联剂中的至少一种;所述光引发剂为苯基双(2,4,6-三甲基苯甲酰基)氧化膦;所述丙烯酸类单体稀释剂为丙烯酸、丙烯酸羟乙酯、β-丙烯酰氧基丙酸、丙烯酸甲酯、丙烯酸异辛酯中的至少一种;
所述UV预聚物的制备原料包括:
聚合单体:丙烯酸异辛酯和丙烯酸;
光引发剂:添加量为聚合单体总重量的0.01%~3%;
硫醇类分子量调节剂:添加量为聚合单体总重量的0.001%~1%;
所述UV预聚物的制备方法为:其单体组合物在波长为340-390nm光照强度为50-100mj/cm2照射条件下,用纯度为99.99%的氮气保护的条件中形成,反应40-60s,待停止反应,冷却至常温,可获得粘度为4000~6000CPS反应产物。
2.根据权利要求1所述的耐高温丙烯酸泡棉胶胶带,其特征在于,所述UV预聚物的制备原料中,所述引发剂为1-羟基-环已基-苯基甲酮、苯基双(2,4,6-三甲基苯甲酰基)氧化膦、2,4,6-三甲基苯甲酰基膦酸乙酯、2-羟基-甲基苯基丙烷-1-酮中的至少一种。
3.根据权利要求1所述的耐高温丙烯酸泡棉胶胶带,其特征在于:所述基材厚度为0.4-0.5mm,所述面胶厚度为0.05-0.07mm,所述100-150℃发泡后的总厚度为0.7-0.9mm。
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EP0448161A1 (en) * | 1990-03-23 | 1991-09-25 | Agfa-Gevaert N.V. | Method for improving the adherence to radiation cured coatings |
CN109825213A (zh) * | 2018-12-26 | 2019-05-31 | 张家港康得新光电材料有限公司 | 一种泡棉胶带及其制备方法 |
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CN112745771A (zh) * | 2020-12-30 | 2021-05-04 | 苏州赛伍应用技术股份有限公司 | 一种丙烯酸酯泡棉胶带及其制备方法 |
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EP0448161A1 (en) * | 1990-03-23 | 1991-09-25 | Agfa-Gevaert N.V. | Method for improving the adherence to radiation cured coatings |
CN109825213A (zh) * | 2018-12-26 | 2019-05-31 | 张家港康得新光电材料有限公司 | 一种泡棉胶带及其制备方法 |
CN111019543A (zh) * | 2019-12-24 | 2020-04-17 | 苏州赛伍应用技术股份有限公司 | 一种高强度泡棉胶带及其制备方法 |
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