摘要
制备了一种阻燃双组分PU(聚氨酯)结构胶(其A组分为添加了阻燃增塑剂和阻燃无机填料的羟基组分,B组分为异氰酸酯固化剂),并讨论了聚酯多元醇、阻燃增塑剂和阻燃无机填料等掺量对结构胶强度和阻燃性能的影响。研究结果表明:该结构胶的各项性能优异[阻燃等级达到S4(SGS)级,拉伸强度为8.5 MPa,断裂伸长率为111%,w(固含量)>98%(相对于A组分、B组分混合质量而言)],可以满足高速铁路动车组车身部分结构粘接的要求。
A kind of antiflaming two-component PU （polyurethane） structure adhesive was prepared when it＇s A-component was a hydroxyl component with antiflaming plasticizer and antiflaming inorganic filler, and B-component was an isocyanate curing agent. And the influences of some factors （such as polyester polyol, antiflaming plasticizer and antiflaming inorganic filler contents） on strength and antiflaming property of structure adhesive were discussed. The research results showed that the structure adhesive had the excellent various properties[such as its antiflaming at level S4 （SGS）, tensile strength at 8.5 MPa, elongation at break at 111%, and solid content above 98% in A-component and B-component mass], and could meet the requirements of structure bonding for body part in high-speed railway trains.
出处
《中国胶粘剂》
CAS
北大核心
2015年第11期31-34,共4页
China Adhesives
基金
湖北回天新材料股份有限公司双组分聚氨酯结构胶项目
关键词
结构胶
双组分
聚氨酯
阻燃性
structure adhesive
two-component
polyurethane （PU）
flame retardant
