The results indicate that the epoxy resin is a chain extender having highest activity and preeminent chain extending effect, though it induces crosslinking to a given extent and br...
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- 以環(huán)氧樹(shù)脂為擴鏈劑反應活性最高,擴鏈效果比較明顯,但有一定的交聯(lián)反應發(fā)生,導致擠出物熔體破裂;二異氰酸酯在擴鏈時(shí),由于其在高溫下自身會(huì )發(fā)生化學(xué)反應,使擴鏈效率降低;
