论文部分内容阅读
研制了1种聚氨酯密封胶专用双组分底涂剂。以多官能度的PAPI(多苯基多次甲基多异氰酸酯)为固化剂,以溶剂化的强极性共聚物、铬酸铅、偶联剂和其他助剂的混合物为主剂。显著提高聚氨酯密封胶对金属的粘结作用,剪切强度(钢/铝)达到10MPa。
Developed a polyurethane sealant for a two-component primer. With multi-functionality of the PAPI (polyphenylpolymethyl polyisocyanate) as a curing agent, the solvent of the strong polar copolymer, lead chromate, coupling agent and other additives mixture as the main agent. Significantly improve the adhesion of polyurethane sealant on the metal, shear strength (steel / aluminum) to 10MPa.