CN115232569A - 一种网格pet双面胶带制备方法 - Google Patents
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Abstract
本发明提供一种网格PET双面胶带的制备方法，将SIS弹性体、聚萜烯树脂、氢化松香甘油酯、环烷油、抗氧剂、防老剂通过热熔搅拌均匀，之后在基材两侧涂布热熔型压敏胶，在热熔型压敏胶层上贴合网格离型纸，该网格PET双面胶带具有良好的附着力以及内聚强度，被贴物有较好的剥离性，能够避免残胶。
Description
技术领域
本文涉及到的一种网格PET双面胶带制备方法，属于压敏胶粘剂领域。
背景技术
双面胶带主要由两层压敏胶黏剂、一层双面防粘材料或者两层单面防粘材料以及一层基材组成。双面胶带所采用的基材种类繁多，常见的基材有棉纸，各种塑料薄膜、泡棉、织物等。，其中塑料薄膜包括聚酯(PET)薄膜、聚氯乙烯(PVC)薄膜、聚乙烯(PE)薄膜等。PET薄膜具有良好的拉伸及透明性能，被广泛用于制作双面带。
网格PET双面胶以PET为基材，双面涂布亚克力胶水与网格离型材料组合而成，形成单面或者双面的网格效果，网格PET双面胶胶面具有排气性能，可使贴合更加平整，常用于贴合金属、塑料、ABS、PC、PVC、石墨膜等，在触控面板，家用面板，铭板标牌等对贴合平整度有特殊要求的工艺上使用。然而，目前市场上的网格PET双面胶多为溶胶型胶水涂布而成，成本高，对环境污染严重，因此，有必要对目前的排气型PET双面胶带进行改进。
发明内容
针对上述问题，本发明的目的在于提供一种以环保型热熔压敏胶涂布而成的网格PET双面胶带及其生产工艺，以解决现有技术中的网格排气型双面胶带普遍存在成本高，对环境污染严重的问题。
为了实现上述目标，本发明采用如下的技术方案：
网格双面胶，从上至下依次为网格离型纸层、热熔型压敏胶层、PET基材层、热熔型压敏胶层、网格离型纸层
优选地，前述PET基材的厚度为12μm。
优选地，前述热熔型压敏胶层的厚度为20μm。
再优选地，前述网格离型纸上的网格为菱形或正方形。
更优选地，前述热熔型压敏胶层包括如下重量份的各组分：SIS弹性体40～60份、聚萜烯树脂15～30份、氢化松香甘油酯20～40份、环烷油5～10份、抗氧剂0.5～1份、防老剂0.5～1份。
此外，本发明还公布了如前所述的网格PET双面胶带的生产工艺，包括如下步骤：
S1制备热熔型压敏胶：按照前述的组分准备各原料，反应釜在175℃氮气保护下将SIS弹性体、环烷油、聚萜烯树脂搅拌熔化完全，然后加入氢化松香甘油酯、抗氧剂、防老剂熔融混合均匀，即得热熔型压敏胶；
S2将步骤S1制得的热熔型压敏胶均匀涂布于基材表面，冷却；
S3在热熔型压敏胶层上贴合网格离型纸，即得产品。
本发明的有益效果和优点在于：本发明的网格PET双面胶带两面涂布的胶黏剂为热熔型压敏胶，不添加溶剂，减少对环境的污染，降低胶带成本，而且提高胶黏剂生产利用率，胶带附着力好、内聚强对于被贴物有较好的剥离性，能够避免残胶，此外，本发明的生产工艺简单可行，具有极好的市场推广应用前景
具体实施方式
下面将列举本发明的技术方案实施例对本发明作具体的介绍。
实施例1
本发明提供的网格PET双面胶带，从上至下依次为网格离型纸层、热熔型压敏胶层、PET基材层、热熔型压敏胶层、网格离型纸层，所述的热熔型压敏胶层的配方为：SIS弹性体40份、聚萜烯树脂15份、氢化松香甘油酯20份、环烷油5份、抗氧剂1份、防老剂0.5份。所述的热熔胶黏剂层厚度为20μm。所述的PET膜层厚度为12μm，本发明的网格PET双面胶带贴物品分别在常温、50℃放置72h，撕开后无残胶。
实施例2
本实施例的网格PET双面胶带制备方法与结构均与实施例1相同，区别仅在于热熔型压敏胶层中各组分的重量份，具体如下：
热熔型压敏胶层包括如下重量份的各组分：SIS弹性体45份、聚萜烯树脂30份、氢化松香甘油酯25份、环烷油7份、抗氧剂1份、防老剂1份。本发明的网格PET双面胶带贴钢板在100℃放置2h，撕开后无残胶。
实施例3
本实施例的网格PET双面胶带制备方法与结构均与实施例1相同，区别仅在于热熔型压敏胶层中各组分的重量份，具体如下：
热熔型压敏胶层包括如下重量份的各组分：SIS弹性体60份、聚萜烯树脂30份、氢化松香甘油酯30份、环烷油5份、抗氧剂1份、防老剂1份。本发明的网格PET双面胶带贴钢板在60℃下保持力＞48h/1kg/in2。
上述所有实例的结果汇总于表1中：
表1
综上，本发明的网格PET双面胶带，本发明的网格PET双面胶带两面涂布的胶黏剂为热熔型压敏胶，不添加溶剂，减少对环境的污染，减低生产成本，胶带有较好的附着力及内聚，贴合物品剥离后无残胶，生产工艺简单可行。
以上显示和描述了仅表达了本发明的实施方式。并非对本发明的技术范围作任何限制，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。
Claims (4)
1.热熔型压敏胶层，其特征在于：原料包括：
SIS弹性体40～60份
聚萜烯树脂15～30份
氢化松香甘油酯20～40份
环烷油5～10份
抗氧剂0.5～1份
防老剂0.5～1份。
2.根据权利要求1所述的热熔型压敏胶层，其特征在于：所述SIS弹性体为直链结构，其中苯乙烯与橡胶质量比为14/86，所述聚萜烯树脂软化点为120℃，所述氢化松香甘油酯软化点为90℃，所述抗氧剂为四[β-(3，5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯，所述防老剂为2、6-二叔丁基对甲酚。
3.一种网格PET双面胶带制备方法，其特征在于：
如权利要求1热熔型压敏胶层，按照权利要求1中各组分准备各原料，反应釜在175℃氮气保护下将SIS弹性体、环烷油、聚萜烯树脂搅拌熔化完全，然后加入氢化松香甘油酯、抗氧剂、防老剂熔融混合均匀，即得热熔型压敏胶；热熔型压敏胶均匀涂布于基材表面，冷却，在热熔型压敏胶层上贴合网格离型纸，即得网格PET双面胶带。
4.根据权利要求3所述的网格PET双面胶带，其特征在于：所述PET基材厚度为12mm，所述面胶厚度为0.020mm，所述网格离型纸上的网格为菱形或正方形。
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Citations (3)
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|---|---|---|---|---|
| CN107227124A (zh) * | 2017-05-31 | 2017-10-03 | 江苏斯瑞达新材料科技有限公司 | 网格pet双面胶带及其生产工艺 |
| CN112280506A (zh) * | 2020-10-30 | 2021-01-29 | 中山市太力家庭用品制造有限公司 | 一种无基材可移除橡胶类压敏胶 |
| CN112592683A (zh) * | 2020-12-14 | 2021-04-02 | 江苏晶华新材料科技有限公司 | 一种耐低温热熔压敏胶、胶带及其制备工艺 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227124A (zh) * | 2017-05-31 | 2017-10-03 | 江苏斯瑞达新材料科技有限公司 | 网格pet双面胶带及其生产工艺 |
| CN112280506A (zh) * | 2020-10-30 | 2021-01-29 | 中山市太力家庭用品制造有限公司 | 一种无基材可移除橡胶类压敏胶 |
| CN112592683A (zh) * | 2020-12-14 | 2021-04-02 | 江苏晶华新材料科技有限公司 | 一种耐低温热熔压敏胶、胶带及其制备工艺 |
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