双组分聚氨酯人造草背胶的研制

Study on the Synthesis of Two-Component Polyurethane Adhesive for Artificial Grass

介绍了一种双组分聚氨酯人造草背胶的制备方法,以聚醚多元醇、异氰酸酯为主体原料,3,3'-二氯-4,4'-二氨基二苯基甲烷(MOCA)为扩链剂,研究了不同聚醚多元醇质量比、扩链剂用量、异氰酸酯质量比、异氰酸酯指数对人造草背胶操作时间、脱粘时间及力学性能的影响。结果表明,当异氰酸根指数为0.99,A组分中聚醚多元醇MN-3050与DL-1000质量份数分别为80、20,A组分中扩链剂MOCA用量为4份,B组分中MDI-50与PM-200质量比为1∶1,当A、B组分按质量比2∶1混合时,操作时间及脱粘时间最佳,人造草背胶的综合力学性能达到最好。

A new kind of preparation method of two-component polyurethane adhesive of artificial grass was in-troduced, the main raw materials were polyether polyol and isocyanate, and MOCA as the chain extender. Influ-ence of mass ratio of different polyethers, chain extender dosage, mass ratio of isocyanates and isocyanate index on the operation time, debonding time and mechanical properties were studied. The results showed that the operation time,debonding time and comprehensive mechanical properties were the best when the isocyanate index was 0.99, mass fraction of MN-3050 and DL-1000 was 80 and 20 in group A, the mass of MOCA was 4 portions in component A, the mass ratio of MDI-50 and PM-200 in component B was 1∶1 and the mixtured mass ratio of component A and B was 2∶1 .