PSA | Factors affecting the adhesion of pressure sensitive adhesive

  • PSA
  • 2019/01/30

  

 

影响压敏胶粘结的因素

胶带行业会经常听到“压敏胶”这个名词,但是对其正真含义却是一知半解,那什么是压敏胶呢?让小编来科普一下吧!所谓“胶黏剂”采用指触压力就能使胶黏剂立即达到粘接任何被粘物光洁表面的目的,与此同时,如果从被粘物粘接表面揭去时,胶黏剂不污染被粘物表面;压敏胶一般不直接用于被粘物的粘接,而是通过将其涂布在各种基材上制成压敏胶制品,然后再应用与被粘物的粘接。

我们经常会遇到这样的问题和苦恼,为什么生产出来的胶带质量是很好的,可是一用在终端就会产生这样或那样的问题呢?这是因为有着众多的因素影响着压敏胶粘结的效果,如果在应用中注意这些影响因素并且避免相应的问题,胶带的使用效果也会如你所愿的!以下就简单介绍影响压敏胶粘结的因素:

 

 

表面因素

 

表面能(表面能高易湿润)

 

表面结构、粗糙度

 

表面弯曲度、洁净度

 

 

 

环境因素

 

溶剂、化学品的影响

 

使用温度

 

紫外光照

 

 

 

应用因素

 

时间(胶水需要时间流动)

 

温度(高温可以降低胶的黏性促进胶水的流动性胶水对材料的润湿性)

 

压力(生促进胶水的流动性、对材料的润湿性,避免气泡的产生)

 



Hot Products

Medium-tension type gas-phase silicone rubber is a common performance silicone product of silicone products, and Shinyue CHN-6000-U series substitute (equivalent)

Medium-tension type gas-phase silicone rubber is a common performance silicone product of silicone products, and Shinyue CHN-6000-U series substitute (equivalent)

Medium-tension type gas-phase silicone rubber is a common performance silicone product of silicone products, and Shinyue CHN-6000-U series substitute (equivalent)

MD5151 is a kind of silicone rubber with a long life cycle and a hardness of 50 (Shore A) in the curing state. It can be used to manufacture silicone rubber products with excellent fatigue resistance.

It is a solid adhesive with better transparency than general adhesive and can achieve high transparency and tear resistance of liquid adhesive.

Precipitated silicone rubber is a common performance silicone product of silicone products. Xinyue KE-900-U series substitute (equivalent)