PBS/PHB共混合金的制备及其性能
China Synthetic Resin and Plastics(2021)
Abstract
采用双螺杆挤出机将聚羟基丁酸酯(PHB)与聚丁二酸丁二酯(PBS)熔融共混,制备了PBS/PHB合金,并研究了其性能.结果表明:PBS与PHB组成了热力学互容体系;随着PHB用量的增加,PBS/PHB合金的晶体形态为尺寸逐渐减小的环带球晶,合金的拉伸强度与韧性显著增加;PBS/PHB合金在紫外光老化后的抗冲击性能下降,但PHB含量高的合金在老化后仍具有较高的冲击强度.
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