CN110819259A - 超高粘橡胶型压敏胶及高弹性双面胶带的制备方法 - Google Patents

超高粘橡胶型压敏胶及高弹性双面胶带的制备方法 Download PDF

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CN110819259A
CN110819259A CN201911188533.6A CN201911188533A CN110819259A CN 110819259 A CN110819259 A CN 110819259A CN 201911188533 A CN201911188533 A CN 201911188533A CN 110819259 A CN110819259 A CN 110819259A
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sensitive adhesive
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rubber
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魏彦龙
胡文光
樊勤海
樊秋实
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Shenzhen Yida Hing Polytron Technologies Inc
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Abstract

本申请公开了一种超高粘橡胶型压敏胶及高弹性双面胶带的制备方法;主要是因为选用两种以上具有不同特性的石油树脂协同作用,搭配性能稳定的热塑性橡胶,制备性能优异的超高粘橡胶型压敏胶,同时选用拉伸强度高、断裂伸长率大的TPU薄膜作为基材,连同超高粘橡胶型压敏胶制备高弹性的双面胶带,可作为固定电子产品电池的理想胶带产品;本发明公开的超高粘橡胶型压敏胶的粘性高,制备成易拉胶带之后,在钢板上具有极高的剥离强度跟环形初粘;通过合适的橡胶跟石油树脂,制备的超高粘橡胶型压敏胶烘干成膜之后,本身就具备较高的拉伸强度,再加上高拉伸强度的TPU薄膜,制得的易拉胶具有极高的拉伸强度和断裂伸长率。

Description

超高粘橡胶型压敏胶及高弹性双面胶带的制备方法
技术领域
本发明涉及压敏胶开发领域,尤其涉及超高粘橡胶型压敏胶及高弹性双面胶带的制备方法。
背景技术
智能手机、平板电脑等消费类电子产品的电池固定及无损拆卸,一直以来都是业界的一个重要课题。当前的解决方案,其中之一采用橡胶型压敏胶制备成的易拉胶带粘贴,易拉胶带水平拉伸时粘性减弱,实现电池的无损拆卸与回收。现有的橡胶型压敏胶,有以下几点缺陷;主要有以下几点缺陷;第一,粘性较差,导致电池粘贴之后存在脱落的风险;第二,拉伸强度较低,在拉伸过程中容易断裂,导致电池拆卸困难;第三,耐老化性能差,长时间粘贴后容易变黄、断裂以及残胶。所以开发出一种综合性能更加优良的易拉胶极为必要。
发明内容
针对上述技术中存在的不足之处,本发明提供一种超高粘橡胶型压敏胶及高弹性双面胶带的制备方法,能够制备出超高粘橡胶型压敏胶,用该超高橡胶型压敏胶制备成胶带后,在钢板上具有极高的剥离强度跟环形初粘性能。
本发明提供一种超高粘橡胶型压敏胶,应用于手机、笔记本电脑等电子产品的电池粘贴,包含以下重量份的组分:热塑性橡胶30-50份、石油树脂20-50份、增塑剂1-5份、染色填料1-5份、有机溶剂125-180份。
作为优选,热塑性橡胶采用SIS橡胶、SBS橡胶中的一种或两种混合;其中,SIS橡胶具体为岳阳巴陵石油化工有限公司SIS1105、SIS1124中的一种或两者混合;SBS橡胶具体为岳阳巴陵石油化工有限公司YH-796。
作为优选,石油树脂采用C5石油树脂、C9石油树脂以及C9改性C5石油树脂中的一种或几种混合。
作为优选,增塑剂为邻苯二甲酸二辛脂。
作为优选,包括以下重量份的组分:热塑性橡胶30-40份、石油树脂20-40份、增塑剂1.5-4份、染色填料1.5-4份、有机溶剂125-150份。
作为优选,包括以下重量份的组分:热塑性橡胶40份、石油树脂37份、增塑剂2.5份、染色填料2份、有机溶剂140份。
本发明还提供一种超高粘橡胶型压敏胶的制备方法,包括以下步骤:
S1:在常温下按重量比30-50:20-50:1-5:1-5:125-180配制热塑性橡胶、石油树脂、增塑剂、染色填料、有机溶剂;
S2:将石油树脂溶解在有机溶剂中得到溶解液;
S3:在S2中得到的溶解液中加入热塑性橡胶,密封后静置24小时得到混合物;
S4:在S3中得到的混合物中进入增塑剂及染色填料,搅拌均匀后过滤,得到超高粘橡胶型压敏胶。
作为优选,有机溶剂采用甲苯、二甲苯、乙酸乙酯、丁酮中的一种或几种混合。
本发明提供一种具有超高粘橡胶型压敏胶的高弹性双面胶带的制备方法,将上述的所述的超高粘橡胶型压敏胶均匀涂布到TPU薄膜的第一面上,烘干后贴合双面硅油离型纸,然后在TPU薄膜的第二面上再涂布同样厚度的超高粘橡胶型压敏胶;烘干后收卷。
作为优选,采用的所述TPU薄膜厚度为0.03-0.2mm;涂布的超高粘橡胶型压敏胶厚度为0.03-0.3mm;采用的所述双面硅油离型纸厚度为0.08-0.15mm。
本发明的有益效果是:制备的超高粘橡胶型压敏胶的粘性高,制备成易拉胶带之后,在钢板上具有极高的剥离强度跟环形初粘。制备的易拉胶带拉伸强度高,通过选用合适的橡胶跟石油树脂,制备的超高粘橡胶型压敏胶烘干成膜之后,本身就具备较高的拉伸强度,再加上高拉伸强度的TPU薄膜,使得整个易拉胶具有极高的拉伸强度和断裂伸长率。制得的易拉胶带耐老化,长时间粘贴后,性能仍旧维持在合理的范围内;
本发明选用两种以上具有不同特性的石油树脂,在超高粘橡胶型压敏胶配方中具有协同作用,搭配性能稳定的热塑性橡胶,制备性能优异的超高粘橡胶型压敏胶,同时选用拉伸强度高、断裂伸长率大的TPU薄膜作为基材,连同超高粘橡胶型压敏胶制备高弹性的双面胶,可作为固定电子产品电池的理想胶带产品。
附图说明
图1为本发明中高弹性双面胶带的横截面示意图;
图2为本发明制作高弹性双面胶带的工艺流程图。
主要元件符号说明如下:
1、橡胶型压敏胶;2、透明TPU膜;3、双面硅油离型纸。
具体实施方式
为了更清楚地表述本发明,下面结合实施例对本发明作进一步地描述。
本发明公开一种超高粘橡胶型压敏胶及高弹性双面胶带(易拉胶)的制备方法,能够制备出超高粘橡胶型压敏胶,制备成易拉胶后,在钢板上具有极高的剥离强度跟环形初粘。
具体包含以下重量份的组分:热塑性橡胶30-50份、石油树脂20-50份、增塑剂1-5份、染色填料1-5份、有机溶剂125-180份。
热塑性橡胶:又称热塑性弹性体,是一类在常温下显示橡胶弹性、受热时呈可塑性的高分子材料。本发明热塑性橡胶采用SIS橡胶、SBS橡胶中的一种或两种混合;其中,SIS橡胶具体为岳阳巴陵石油化工有限公司的SIS1105、SIS1124中的一种或两者混合;SBS橡胶具体为岳阳巴陵石油化工有限公司的YH-796。
石油树脂:石油树脂(hydrocarbon resin)是石油裂解所副产的C5、C9馏分,经前处理、聚合、蒸馏等工艺生产的一种热塑性树脂,它不是高聚物,而是分子量介于300-3000的低聚物;其具有混溶性好、熔点低、耐水、耐乙醇等优点,可广泛用于橡胶、压敏胶、涂料、造纸、油墨等多种行业和领域。本发明中的石油树脂采用固态C5石油树脂、液态C5石油树脂、C9石油树脂、液态氢化C9石油树脂以及C9改性C5石油树脂中的一种或几种混合
增塑剂:是在工业生产上被广泛使用的高分子材料助剂,又称塑化剂。凡是添加到聚合物材料中能使聚合物塑性增加的物质都称为塑化剂。塑化剂的使用可以改善高分子材料的性能,降低生产成本,提高生产效益。增塑剂的作用主要是减弱树脂分子间的次价键,增加树脂分子键的移动性,降低树脂分子的结晶性,增加树脂分子的可塑性,使其柔韧性增强,容易加工,可合法用于工业用途,广泛存在于食品包装、化妆品、医疗器材,以及环境水体中。常用的有邻苯二甲酸二辛脂,在常温状态表现为外观透明的油状液体。
染色填料:本发明所用的染色填料,白色主要为钛白粉、碳酸钙,黑色主要为炭黑。
有机溶剂:有机溶剂是一大类在生活和生产中广泛应用的有机化合物,分子量不大,它存在于涂料、粘合剂、漆和清洁剂中。在本发明中使用的有机溶剂为甲苯、二甲苯、乙酸乙酯、丁酮中的一种或几种的混合物。
实施例1
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将20份固态C5石油树脂、10份C9石油树脂溶解在45份的甲苯、80份乙酸乙酯的溶剂中;然后加入30份SIS1105;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将2份钛白粉和1.5份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
请参阅图1及图2,将该橡胶型压敏胶1均匀涂布在0.1mm透明TPU薄膜2的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.2mm,贴合0.12mm厚度的双面硅油离型纸3,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例2
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将21份固态C5石油树脂、4份液体C5石油树脂、15份C9石油树脂溶解在130份的溶剂中;然后加入30份SIS1105;密封后静置24H,确保橡胶完全溶解在100份乙酸乙酯、30份甲苯构成的溶剂中,然后将2份钛白粉和1.5份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.1mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.2mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例3
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将30份C5石油树脂、3份液体C5石油树脂、10份C9石油树脂溶解在130份的溶剂中;然后加入40份SIS1105;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将2份钛白粉和2份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.05mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.1mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例4
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
本实施例提供一种超高粘橡胶型压敏胶,其组成如下:在常温下按重量比称取30份SIS1105、10份SIS1124、25份C5石油树脂、12份C9石油树脂、2.5份钛白粉和2份增塑剂邻苯二甲酸二辛酯以及70份乙酸乙酯、60份甲苯。
将25份固态C5石油树脂、4份液体氢化C9石油树脂、8份C9石油树脂溶解在130份的溶剂中;然后加入30份SIS1105、10份SIS1124;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将2.5份钛白粉和2.0份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.05mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.2mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例5
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将15份C9改性C5石油树脂、2份液体C5石油树脂、6份C9石油树脂溶解在130份的溶剂中;然后加入40份SIS1105、5份YH-796;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将3份炭黑和1份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.1mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.15mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例6
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将20份C9改性C5石油树脂、3份液体氢化C9石油树脂、5份C9石油树脂溶解在130份的溶剂中;然后加入30份SIS1105、8份YH-796;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将3份炭黑和2份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.1mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.2mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
实施例7
超高粘橡胶型压敏胶的制备及高弹性双面胶带的制备
将25份C5石油树脂、10份C9石油树脂溶解在130份的溶剂中;然后加入30份SIS1105、5份SIS1124;密封后静置24H,确保橡胶完全溶解在溶剂中,然后将2.5份钛白粉和2份增塑剂邻苯二甲酸二辛酯加入搅拌均匀,进行过滤后即可得到超高粘橡胶型压敏胶。
将该橡胶型压敏胶均匀涂布在0.05mm透明TPU薄膜的一侧,调整厚度,使得烘干后橡胶型压敏胶层的厚度为0.1mm,贴合0.12mm厚度的双面硅油离型纸,收卷。然后在TPU薄膜的另一侧涂布0.2mm厚度的橡胶型压敏胶,烘干溶剂后收卷,即得到高弹性橡胶型亚敏胶带(易拉胶)。
对上述所有实施例的性能参数如下表(表1)所示:
表1
Figure BDA0002292991970000071
Figure BDA0002292991970000081
本发明的优势在于:
1)制备的超高粘橡胶型压敏胶的粘性高,制备成易拉胶带之后,在钢板上具有极高的剥离强度跟环形初粘。
2)制备的易拉胶带拉伸强度高,通过选用合适的橡胶跟石油树脂,制备的超高粘橡胶型压敏胶烘干成膜之后,本身就具备较高的拉伸强度,再加上高拉伸强度的TPU薄膜,使得整个易拉胶具有极高的拉伸强度和断裂伸长率。
3)抗老化性能强,选用性能优异、质量可靠的原料,制得的易拉胶带耐老化,长时间粘贴,性能仍旧维持在合理的范围内。
以上公开的仅为本发明的几个具体实施例,但是本发明并非局限于此,任何本领域的技术人员基于本申请的技术方案所做的变化都应落入本发明的保护范围。

Claims (10)

1.一种超高粘橡胶型压敏胶,应用于手机、笔记本电脑等电子产品的电池粘贴,其特征在于,包含以下重量份的组分:热塑性橡胶30-50份、石油树脂20-50份、增塑剂1-5份、染色填料1-5份、有机溶剂125-180份。
2.根据权利要求1所述的超高粘橡胶型压敏胶,其特征在于,包括以下重量份的组分:热塑性橡胶30-40份、石油树脂20-40份、增塑剂1.5-4份、染色填料1.5-4份、有机溶剂125-150份。
3.根据权利要求1所述的超高粘橡胶型压敏胶,其特征在于,包括以下重量份的组分:热塑性橡胶40份、石油树脂37份、增塑剂2.5份、染色填料2份、有机溶剂140份。
4.根据权利要求1所述的超高粘橡胶型压敏胶,其特征在于,热塑性橡胶采用SIS橡胶、SBS橡胶中的一种或两种混合;其中, SIS橡胶具体为SIS1105、SIS1124中的一种或两者混合; SBS橡胶具体为YH-796。
5.根据权利要求1所述的超高粘橡胶型压敏胶,其特征在于,石油树脂采用C5石油树脂、C9石油树脂以及C9改性C5石油树脂中的一种或几种的混合。
6.根据权利要求1所述的超高粘橡胶型压敏胶,其特征在于,增塑剂为邻苯二甲酸二辛脂。
7.一种超高粘橡胶型压敏胶的制备方法,其特征在于,包括以下步骤:
S1:在常温下按重量比30-50:20-50:1-5:1-5:125-180配得热塑性橡胶、石油树脂、增塑剂、染色填料、有机溶剂;
S2:将石油树脂溶解在有机溶剂中得到溶解液;
S3:在S2中得到的溶解液中加入热塑性橡胶,密封后静置24小时得到混合物;
S4:在S3中得到的混合物中进入增塑剂及染色填料,搅拌均匀后过滤,得到超高粘橡胶型压敏胶。
8.根据权利要求7所述的超高粘橡胶型压敏胶的制备方法,其特征在于,有机溶剂采用甲苯、二甲苯、乙酸乙酯、丁酮中的一种或几种混合。
9.一种具有权利要求7-8任一项所述的超高粘橡胶型压敏胶的高弹性双面胶带的制备方法,其特征在于,将权利要求7-8任一项所述的超高粘橡胶型压敏胶均匀涂布到TPU薄膜的第一面上,烘干后贴合双面硅油离型纸,然后在TPU薄膜的第二面上再涂布同样厚度的超高粘橡胶型压敏胶;烘干后收卷。
10.根据权利要求8所述的高弹性双面胶带的制备方法,其特征在于,采用的所述TPU薄膜厚度为0.03-0.2mm;涂布的超高粘橡胶型压敏胶厚度为0.03-0.3mm;采用的所述双面硅油离型纸厚度为0.08-0.15mm。
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