CN114806445A - 耐气候性广告贴 - Google Patents

耐气候性广告贴 Download PDF

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CN114806445A
CN114806445A CN202210253844.1A CN202210253844A CN114806445A CN 114806445 A CN114806445 A CN 114806445A CN 202210253844 A CN202210253844 A CN 202210253844A CN 114806445 A CN114806445 A CN 114806445A
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layer
parts
curing agent
weather
sticker
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CN114806445B (zh
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夏厚君
杨晓明
涂大记
潘华
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Zhejiang Fulai New Material Co ltd
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Abstract

本发明公开了一种耐气候性广告贴，包括基材层、背胶层和离型层，所述基材层的一面上涂覆于背胶层，所述背胶层相背于基材层的一面设有离型层；所述背胶层由胶液涂覆烘干获得，此胶液由以下重量份组分组成：甲基丙烯酸甲酯、苯乙烯、丙烯酸‑2‑乙基己酯、丙烯酸、过氧化双2，4一二氯苯甲酰、偶氮异丁氰基甲酰胺、三甲基戊二醇、二甲氨基丙腈、固化剂、去离子水、乳化剂、对苯二酚。本发明既提高了防水性能，也使得耐气候性广告贴在环境湿度较大的情况下，粘着力基本不变，使得粘接稳定，不会出现脱落的情况。

Description

耐气候性广告贴
技术领域
本发明属于胶带技术领域，尤其涉及一种耐气候性广告贴。
背景技术
现有的部分广告贴，例如车贴、水性高亮PVC，都具有PVC膜、粘接层和离型纸，其中离型纸由硅油层、淋膜层和底纸构成，硅油层与广告贴的粘接层连接，在使用时剥离离型纸，以将粘接层暴露，进而将广告贴贴于指定位置。
目前市面上及国内生产的广告贴使用的是油性体系压敏胶，胶水有溶剂残留，VOC排放不达标，只能应用于室外环境。因此环保型水基胶粘剂已成为胶粘剂的发展方向，而环保型胶粘剂的研制成果相对较少，防水性能不尽人意，且制造工艺比较复杂。因此，如何开发一种防水性能优良、可长期室外使用的车身贴成为本领域技术人员的研究方向。
发明内容
本发明目的在于提供一种耐气候性广告贴，该耐气候性广告贴既既提高了防水性能，也使得耐气候性广告贴在环境湿度较大的情况下，粘着力基本不变，使得粘接稳定，不会出现脱落的情况，从而适合长期室外使用，大大延长了车身贴的使用寿命。
为达到上述目的，本发明采用的技术方案是：一种耐气候性广告贴，包括基材层、背胶层和离型层，所述基材层的一面上涂覆于背胶层，所述背胶层相背于基材层的一面设有离型层；
所述背胶层由胶液涂覆烘干获得，此胶液由以下重量份组分组成：甲基丙烯酸甲酯15份、苯乙烯15份、丙烯酸-2-乙基己酯20份、丙烯酸6份、过氧化双2，4一二氯苯甲酰2份、偶氮异丁氰基甲酰胺0.5份、三甲基戊二醇1份、二甲氨基丙腈2份、固化剂1.5份、去离子水70份、乳化剂0.2份、对苯二酚0.1份。
上述技术方案中进一步改进的技术方案如下：
1. 上述方案中，所述甲基丙烯酸甲酯与苯乙烯的添加比例为2：1~1：1。
2. 上述方案中，所述固化剂选自固化剂S01-5、固化剂 MH2844、固化剂T-31中的一种。
3. 上述方案中，所述乳化剂乙氧基化C16-18-醇、吐温 20和甘油基聚环氧乙烷中的一种
4. 上述方案中，所述背胶层厚度为10~50μm。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明耐气候性广告贴，其通过在甲基丙烯酸甲酯、苯乙烯、丙烯酸-2-乙基己酯、丙烯酸和偶氮异丁氰基甲酰胺中添加三甲基戊二醇、二甲氨基丙腈，既提高了防水性能，也使得耐气候性广告贴在环境湿度较大的情况下，粘着力基本不变，使得粘接稳定，从而适合长期室外使用，不会出现脱落的情况，大大延长了车身贴的使用寿命。
附图说明
图1为本发明耐气候性广告贴的结构示意图。
具体实施方式
在本专利的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于技术方案所示的方位或位置关系，仅是为了便于描述本专利和简化描述，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，因此不能理解为对专利的限制；术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性；此外，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，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专利的具体含义。
下面结合实施例对本发明作进一步描述：
实施例：一种耐气候性广告贴，包括基材层1、背胶层2和离型层3，所述基材层1的一面上涂覆于背胶层2，所述背胶层2相背于基材层1的一面设有离型层3；
所述背胶层由胶液涂覆烘干获得，此胶液由以下重量份组分组成：甲基丙烯酸甲酯15份、苯乙烯15份、丙烯酸-2-乙基己酯20份、丙烯酸6份、过氧化双2，4一二氯苯甲酰2份、偶氮异丁氰基甲酰胺0.5份、三甲基戊二醇1份、二甲氨基丙腈2份、固化剂1.5份、去离子水70份、乳化剂0.2份、对苯二酚0.1份。
甲基丙烯酸甲酯与苯乙烯的添加比例为1:1，上述固化剂选自固化剂S01-5，上述乳化剂选自乙氧基化C16-18-醇。
上述基材层为PVC层，上述基材层的厚度为70μm，上述背胶层厚度为15μm。
上述耐气候性广告贴的制备方法如下：将甲基丙烯酸甲酯、苯乙烯、丙烯酸-2-乙基己酯、三甲基戊二醇、二甲氨基丙腈和去离子水混合均匀，升温至75~80℃，向该混合体系中滴加偶氮异丁氰基甲酰胺和丙烯酸，反应3~4h；冷却至室温，加入过氧化双2，4一二氯苯甲酰、固化剂、乳化剂和对苯二酚，混合均匀得到胶液；
将胶液均匀涂覆于基材层1上，烘干得到背胶层2。
对比例1~2：一种耐气候性广告贴，包括基材层1、背胶层2和离型层3，所述基材层1的一面上涂覆于背胶层2，所述背胶层2相背于基材层1的一面设有离型层3，所述背胶层由胶液涂覆烘干获得，此胶液由以下重量份组分组成，如表1所示：
表1
Figure RE-121929DEST_PATH_IMAGE001
对比例制备方法同实施例。
上述实施例和对比例1~2制得的抗静电膜的性能如表2所示：
表2
Figure RE-304649DEST_PATH_IMAGE002
测试方法：
耐水试验测定方法：所制得试样在沸水(100℃)条件下蒸煮，经过1H、10H和24H分别测试粘着力情况。
如表2的评价结果所示，实施例耐气候性广告贴防水性能优良，在水中浸泡长时间粘着力几乎不会发生变化，而对比例1防水性能相对差，对比例2粘结强度随着浸泡时间变化，粘着力快速下降；可知，本发明既提高了防水性能，也使得耐气候性广告贴在水中浸泡时间较长的情况下，粘着力变化很小，防水性能稳定，不会产生脱落的现象，从而适合长期室外使用，大大延长了车身贴的使用寿命。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (5)

1.一种耐气候性广告贴，其特征在于：包括基材层（1）、背胶层（2）和离型层（3），所述基材层（1）的一面上涂覆于背胶层（2），所述背胶层（2）相背于基材层（1）的一面设有离型层（3）；
所述背胶层由胶液涂覆烘干获得，此胶液由以下重量份组分组成：甲基丙烯酸甲酯15份、苯乙烯15份、丙烯酸-2-乙基己酯20份、丙烯酸6份、过氧化双2，4一二氯苯甲酰2份、偶氮异丁氰基甲酰胺0.5份、三甲基戊二醇1份、二甲氨基丙腈2份、固化剂1.5份、去离子水70份、乳化剂0.2份、对苯二酚0.1份。
2.根据权利要求1所述的耐气候性广告贴，其特征在于：所述固化剂选自固化剂S01-5、固化剂 MH2844、固化剂T-31中的一种。
3.根据权利要求1所述的耐气候性广告贴，其特征在于：所述甲基丙烯酸甲酯与苯乙烯的添加比例为2：1~1：1。
4. 根据权利要求1所述的耐气候性广告贴，其特征在于：所述乳化剂乙氧基化C16-18-醇、吐温 20和甘油基聚环氧乙烷中的一种。
5.根据权利要求1所述的耐气候性广告贴，其特征在于：所述背胶层（2）厚度为10~50μm。
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