CN115058205A - 一种低voc低气味抗反弹双面胶带及胶粘剂组合物 - Google Patents
一种低voc低气味抗反弹双面胶带及胶粘剂组合物 Download PDFInfo
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Abstract
本发明公开了一种低VOC低气味抗反弹双面胶带及胶粘剂组合物,包括胶带本体,所述胶带本体由离型纸层、第一胶粘剂层、基材层和第二胶粘剂层组成,所述第一胶粘剂层设在基材层的下表面,所述第二胶粘剂层设在基材层的上表面。本方案胶粘剂组合物对不同极性的材料表面都具有高的剥离力,对不锈钢的剥离强度为25~26N/24mm,对ABS的剥离强度为22~24N/24mm,对PP的剥离强度为11~13N/24mm;而且耐高温性能好,高温下抗剪切性能优异,抗反弹性好,提供的胶粘剂组合物制备过程中没有使用有机溶剂,极大降低了挥发性有机物的含量,利用上述胶粘剂组合物制备胶粘剂层,并进一步制备双面胶带,该双面胶带保留了胶黏剂组合物的优点。
Description
技术领域
本发明涉及胶带领域,更具体地说,涉及一种低VOC低气味抗反弹双面胶带及胶粘剂组合物。
背景技术
随着社会的快速发展,汽车已经成为越来越普遍的交通工具,汽车内的装饰件和管线的保温材料等通常采用粘接方式进行固定,相比于溶剂型胶水和热熔胶,双面胶带组装效率高,不会污染破坏粘接界面,因此被广泛应用于汽车行业。
目前市场上存在的溶剂型丙烯酸酯类压敏胶带,通常以无纺布作为基材,生产过程中多以乙酸乙酯、甲苯作为溶剂,胶带中残留的低挥发性有机物远远超过政府制定的限值法规,容易对车内环境造成污染,对乘车人的健康造成损害。另外,在售的环保型压敏胶带,存在着贴附跟随性不好的缺点,粘贴泡棉等保温材料时边缘容易翘起。因此,开发一种低VOC、低气味、贴附跟随性好的双面胶带是目前亟需解决的问题。
发明内容
要解决的技术问题
针对现有技术中存在的问题,本发明的目的在于提供一种低VOC低气味抗反弹双面胶带及胶粘剂组合物,本方案胶粘剂组合物对不同极性的材料表面都具有高的剥离力,对不锈钢的剥离强度为25~26N/24mm,对ABS的剥离强度为22~24N/24mm,对PP的剥离强度为11~13N/24mm;而且耐高温性能好,高温下抗剪切性能优异,抗反弹性好。
技术方案
为解决上述问题,本发明采用如下的技术方案。
一种低VOC低气味抗反弹双面胶带,包括胶带本体,所述胶带本体由离型纸层、第一胶粘剂层、基材层和第二胶粘剂层组成,所述第一胶粘剂层设在基材层的下表面,所述第二胶粘剂层设在基材层的上表面,所述离型纸层粘接在第一胶粘剂层的下表面。
进一步的,所述第一胶粘剂层和第二胶粘剂层的厚度为均设为80-90μm。
进一步的,所述基材层的材质为无纺布制成,所述基材层的克重为14g/m2。
一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,包括以下质量百分比的组分:聚丙烯酸酯乳液60%-80%,增粘树脂乳液10%-30%,增稠剂1%-5%,润湿剂1%-5%。
进一步的,所述聚丙烯酸酯乳液粘度8000-15000cP,固含50%-70%。
进一步的,所述聚丙烯酸酯乳液,优选丙烯酸烷基酯或甲基丙烯酸烷基酯的共聚物,或者为甲基丙烯酸烷基酯或丙烯酸烷基酯与含羟基的单体衍生物或含羧基的单体衍生物的共聚物,所述的含羧基的单体衍生物选择丙烯酸、甲基丙烯酸或马来酸等,含羟基的单体衍生物选择甲基丙烯酸-2-羟基乙酯或丙烯酸-2-羟基乙酯。
进一步的,所述增粘树脂乳液为萜烯酚分散体、聚合松香分散体或松香与烃树脂分散体中的至少一种,所述增粘树脂乳液的固含50%-60%,软化点为80℃-100℃,粘度为500-1000cP。
进一步的,所述润湿剂为琥珀磺酸钠盐或烷基酚聚氧乙烯醚中的一种。
进一步的,所述增稠剂为羧甲基纤维素、聚乙烯醇或聚氨酯增稠剂中的至少一种。
有益效果
相比于现有技术,本发明的优点在于:
(1)本方案胶粘剂组合物对不同极性的材料表面都具有高的剥离力,对不锈钢的剥离强度为25~26N/24mm,对ABS的剥离强度为22~24N/24mm,对PP的剥离强度为11~13N/24mm;而且耐高温性能好,高温下抗剪切性能优异,抗反弹性好。
(2)本发明提供的胶粘剂组合物制备过程中没有使用有机溶剂,极大降低了挥发性有机物的含量,VOC和FOG检测值符合VDA278标准,同时气味测试评分级别小于3.0级,可进一步改善车内空气质量;利用上述胶粘剂组合物制备胶粘剂层,并进一步制备双面胶带,该双面胶带保留了胶黏剂组合物的优点。
附图说明
图1为本发明的结构示意图;
图2为本发明的抗反弹测试的示意图。
图中标号说明:
1、胶带本体;11、离型纸层;12、第一胶粘剂层;13、基材层;14、第二胶粘剂层;2、铁管;3、PE泡棉。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例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。
在本发明的描述中,需要说明的是,术语“上”、“下”、“内”、“外”、“顶/底端”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“设置有”、“套设/接”、“连接”等,应做广义理解,例如“连接”,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
实施例一:
一种低VOC低气味抗反弹双面胶带,包括胶带本体1,所述胶带本体1由离型纸层11、第一胶粘剂层12、基材层13和第二胶粘剂层14组成,所述第一胶粘剂层12设在基材层13的下表面,所述第二胶粘剂层14设在基材层13的上表面,所述离型纸层11粘接在第一胶粘剂层12的下表面;所述第一胶粘剂层12和第二胶粘剂层14的厚度为均设为80μm;所述基材层13的材质为无纺布制成,所述基材层13的克重为14g/m2。
一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,包括以下质量百分比的组分:聚丙烯酸酯乳液60%,增粘树脂乳液30%,增稠剂5%,润湿剂5%;其中,聚丙烯酸酯乳液为丙烯酸-2-乙基己酯2-EHA和丙烯酸丁酯BA的共聚物,粘度10000cP,固含50%;增粘树脂乳液为萜烯酚分散体,固含50%,软化点80℃,粘度600cP;润湿剂为琥珀磺酸钠盐。增稠剂为羧甲基纤维素。
一种低VOC低气味抗反弹双面胶带的制备方法包括以下步骤:
1按胶粘剂组合物的配方配制胶粘剂,搅拌均匀后将其涂布在离型纸表面,涂布完成后在110℃干燥4分钟,复合无纺布收卷成单面胶带;
2按照步骤1的方法,在另一卷离型纸的表面涂布配好的胶粘剂,涂布完成后在110℃干燥4分钟,即制作第二胶粘剂层14,然后与单面胶带中基材的另一面复合,并将步骤1中的离型纸拉出;
3将步骤2制成的产品收卷后置于常温下熟化7天,即得到所述低VOC低气味抗反弹双面胶带。
实施例二:
一种低VOC低气味抗反弹双面胶带,包括胶带本体1,所述胶带本体1由离型纸层11、第一胶粘剂层12、基材层13和第二胶粘剂层14组成,所述第一胶粘剂层12设在基材层13的下表面,所述第二胶粘剂层14设在基材层13的上表面,所述离型纸层11粘接在第一胶粘剂层12的下表面;所述第一胶粘剂层12和第二胶粘剂层14的厚度为均设为80μm;所述基材层13的材质为无纺布制成,所述基材层13的克重为14g/m2。
一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,包括以下质量百分比的组分:聚丙烯酸酯乳液70%,增粘树脂乳液20%,增稠剂5%,润湿剂5%。其中,聚丙烯酸酯乳液为丙烯酸-2-乙基己酯2-EHA、丙烯酸丁酯BA和丙烯酸的共聚物,粘度13000cP,固含60%;增粘树脂乳液为聚合松香分散体,固含55%,软化点90℃,粘度800cP。润湿剂为琥珀磺酸钠盐;增稠剂为聚乙烯醇。
本实施例的低VOC低气味抗反弹双面胶带的制备方法与实施例1相同。
实施例三:
一种低VOC低气味抗反弹双面胶带,包括胶带本体1,所述胶带本体1由离型纸层11、第一胶粘剂层12、基材层13和第二胶粘剂层14组成,所述第一胶粘剂层12设在基材层13的下表面,所述第二胶粘剂层14设在基材层13的上表面,所述离型纸层11粘接在第一胶粘剂层12的下表面;所述第一胶粘剂层12和第二胶粘剂层14的厚度为均设为80μm;所述基材层13的材质为无纺布制成,所述基材层13的克重为14g/m2。
一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,包括以下质量百分比的组分:聚丙烯酸酯乳液80%,增粘树脂乳液17%,增稠剂1%,润湿剂2%;其中,聚丙烯酸酯乳液为丙烯酸-2-乙基己酯2-EHA、丙烯酸丁酯BA和丙烯酸-2-羟基乙酯的共聚物,粘度15000cP,固含70%;增粘树脂乳液为松香与烃树脂分散体,固含55%,软化点100℃,粘度1000cP;润湿剂为烷基酚聚氧乙烯醚;增稠剂为聚氨酯增稠剂。
本实施例的低VOC低气味抗反弹双面胶带的制备方法与实施例1相同。
分别对上述实施例1-3制备的双面胶带进行剥离力测试、抗反弹测试、VOC检测和气味检测,测试方法如下,结果如表1所示:
1.剥离力测试
根据国家行业标准GB/T 2792-2014,剥离力指以一定的角度和速率将单位宽度的胶粘带从特定粘接面上剥离所需要的力,单位为N/24mm。测试板材选择SUS 304、ABS和PP。
2.抗反弹测试
如图2所示,测试抗反弹性能时,将双面胶带夹设于PE泡棉3和铁管2之间。铁管2中空,直径20mm;PE泡棉3厚度10mm,发泡率35.5,裁切长度为95mm。泡棉呈弧形弯曲,24h后测试泡棉的弹开距离。
3.VOC检测
采用GC-MS加热脱附设备,用VDA278标准测试VOC和FOG值,VOC加热温度90℃,30min;FOG加热温度120℃,60min。VOC≤150μg/g,FOG≤250μg/g为合格。
4.气味检测
先将250ml的玻璃瓶清洗干净并烘干,然后将规格100mm×100mm大小的胶带放进玻璃瓶后进行密封,再放进80℃烘箱烘烤2小时,取出打开瓶盖,闻瓶中的气味,判断标准如下。
表1不同性能测试结果
以上所述仅是本发明的优选实施方式,并不用于限制本发明,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变型,这些改进和变型也应视为本发明的保护范围。
Claims (9)
1.一种低VOC低气味抗反弹双面胶带,包括胶带本体(1),其特征在于:所述胶带本体(1)由离型纸层(11)、第一胶粘剂层(12)、基材层(13)和第二胶粘剂层(14)组成,所述第一胶粘剂层(12)设在基材层(13)的下表面,所述第二胶粘剂层(14)设在基材层(13)的上表面,所述离型纸层(11)粘接在第一胶粘剂层(12)的下表面。
2.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带,其特征在于:所述第一胶粘剂层(12)和第二胶粘剂层(14)的厚度为均设为80-90μm。
3.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带,其特征在于:所述基材层(13)的材质为无纺布制成,所述基材层(13)的克重为14g/m2。
4.一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:包括以下质量百分比的组分:聚丙烯酸酯乳液60%-80%,增粘树脂乳液10%-30%,增稠剂1%-5%,润湿剂1%-5%。
5.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:所述聚丙烯酸酯乳液粘度8000-15000cP,固含50%-70%。
6.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:所述聚丙烯酸酯乳液,优选丙烯酸烷基酯或甲基丙烯酸烷基酯的共聚物,或者为甲基丙烯酸烷基酯或丙烯酸烷基酯与含羟基的单体衍生物或含羧基的单体衍生物的共聚物,所述的含羧基的单体衍生物选择丙烯酸、甲基丙烯酸或马来酸等,含羟基的单体衍生物选择甲基丙烯酸-2-羟基乙酯或丙烯酸-2-羟基乙酯。
7.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:所述增粘树脂乳液为萜烯酚分散体、聚合松香分散体或松香与烃树脂分散体中的至少一种,所述增粘树脂乳液的固含50%-60%,软化点为80℃-100℃,粘度为500-1000cP。
8.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:所述润湿剂为琥珀磺酸钠盐或烷基酚聚氧乙烯醚中的一种。
9.根据权利要求1所述的一种低VOC低气味抗反弹双面胶带的胶粘剂组合物,其特征在于:所述增稠剂为羧甲基纤维素、聚乙烯醇或聚氨酯增稠剂中的至少一种。
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