聚乳酸/PBAT合金的微孔发泡行为研究

doi:10.19491/j.issn.1001-9278.2017.10.010

中国塑料 ›› 2017, Vol. 31 ›› Issue (10): 55-60.DOI: 10.19491/j.issn.1001-9278.2017.10.010

聚乳酸/PBAT合金的微孔发泡行为研究

余科松¹,周洪福²,密建国³,王向东²

1. 北京工商大学
2. 北京工商大学材料与机械工程学院
3. 北京化工大学

收稿日期:2017-07-25 修回日期:2017-08-01 出版日期:2017-10-26 发布日期:2017-10-25

Study on Microcellular Foam Properties of PLA/PBAT Blends

Received:2017-07-25 Revised:2017-08-01 Online:2017-10-26 Published:2017-10-25

摘要/Abstract

摘要： 通过熔融共混法制备了聚乳酸（PLA）/聚己二酸/对苯二甲酸丁二酯（PBAT）合金，同时添加扩链剂和成核剂苯基磷酸锌（PPZn）调整PLA的结晶和发泡性能。动态流变和差示扫描量热分析的研究结果表明，扩链剂可以改善PLA的熔体强度，PPZn可以促进PLA结晶；在实验条件下经过直接降压法发泡后，所制得的PLA/PBAT合金泡沫的泡孔直径为1~4 μm，泡孔密度为109~1011个/cm3，均为微孔泡沫。

Abstract: Poly(lactic acid) (PLA)/poly(butyleneadipatecoterephthalate) (PBAT) blends were prepared by melt blending with the aid of chain extender (CE) and nucleating agent (PPZn). Dynamic rheological characterization and differential scanning calorimetry analysis indicated that the melt strength and crystallization of PLA were improved by addition of CE and PPZn, respectively. Microcellular foams based on PLA/PBAT blends were prepared under the optimal condition developed by this work, and the foams obtained a cell size of 1~4 μm and a cell density of 109~1011 cells/cm3.

余科松周洪福密建国王向东. 聚乳酸/PBAT合金的微孔发泡行为研究[J]. 中国塑料, 2017, 31(10): 55-60.

参考文献

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聚乳酸/PBAT合金的微孔发泡行为研究

Study on Microcellular Foam Properties of PLA/PBAT Blends

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