摘要
本研究介绍了发泡剂及其分类及热分解型发泡剂和热膨胀型发泡剂在发泡胶中的应用。重点阐述了两种类型发泡剂对发泡结构胶黏剂结构与性能的影响。由于两种发泡剂的发泡机理不同,导致发泡胶固化后形成了不同泡孔,采用热膨胀型发泡剂的发泡胶固化后形成了闭孔的泡孔对其强度有相应的提高。在发泡胶中加入不同量的发泡剂可以改变发泡胶固化后的密度,不同密度下的发泡胶固化后的强度,对不同部位、不同应用要求具有重要的指导意义。
The foaming agents and its classification were introduced in this paper. Thermal decomposition of foaming agent and thermal expansion type foaming agent applied in foaming adhesive were also discussed. Effect of the two foaming agents on foaming structural adhesive performance was particularly expounded. Due to the different foaming mechanism of the two foaming agents,different bubbles was formed after curing. The closed bubble formed when thermal expansion type foaming agent was used,so the relevant adhesive strength was improved after curing. The content of foaming agent in adhesive altered the density of the cured adhesive. The different strength with the different density may has important guiding function for bonding parts and application requirements.
出处
《黑龙江科学》
2013年第9期62-63,共2页
Heilongjiang Science
关键词
发泡剂
发泡结构胶
性能
Foaming agent
foaming structural adhesive
performance
