环氧树脂ADR-4370S是一种含有缩水甘油酯型环氧基团的扩链剂.文中采用ADR-4370S,经双螺杆挤出机对废旧ABS(R-ABS)进行扩链,通过力学性能测试、熔体流动速率测试、傅里叶变换红外光谱、凝胶渗透色谱研究了ADR-4370S对R-ABS结构与性能的影响.此外还通过索氏提取法分析了ADR-4370S对R-ABS凝胶含量的影响.研究表明,ADR-4370S的加入改善了R-ABS的力学性能,当ADR-4370S用量为0.7 phr时,R-ABS的综合力学性能最佳,缺口冲击强度达到6.33 kJ/m2;熔体流动速率测试表明,R-ABS的熔融指数随着ADR-4370S含量的增加而降低;凝胶渗透色谱测试表明,ADR-4370S的加入使R-ABS的相对分子质量提高,相对分子质量分布变窄.
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