Effect of Compatibilization on Foaming Behavior of PLA/PE-HD Blends

doi:10.19491/j.issn.1001-9278.2019.09.009

China Plastics ›› 2019, Vol. 33 ›› Issue (9): 50-56.DOI: 10.19491/j.issn.1001-9278.2019.09.009

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Effect of Compatibilization on Foaming Behavior of PLA/PE-HD Blends

LI Yang^1,2, YIN Dexian^1,2, ZHU Min^1,2, ZHOU Hongfu^1,2*, WANG Xiangdong^1,2, YE Zhiyin^1,2

1. School of Materials and Mechanical Engineering, Beijing Technology and Business University 2. Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics

Received:2019-06-10 Revised:2019-07-04 Online:2019-09-26 Published:2019-10-25

Abstract

Abstract: The poly(lactic acid) (PLA)/high-density polyethylene (PE-HD) blends was prepared by a melt-mixing method with ethylene-glycidyl methacrylate copolymer (GEMA) as a compatibilizer, and then the blending foams were prepared in a stainless-steel autoclave with CO2 as a foaming agent. With the addition of GEMA, the crystallinity of PLA/PE-HD blends decreased but their rheological properties increased slightly. On the other hand, the size of PE-HD dispersed phase decreased and its number increased due to an increase in the content of GEMA. There was a transition from a complex cellular structure to the mono-porous cell one observed in the blending foams.

Key words: polylactic acid);highrdensitypolyethylene;blend;stainlesssteel autoclave foaming, compatibilization

CLC Number:

TQ328

LI Yang, YIN Dexian, ZHU Min, ZHOU Hongfu, WANG Xiangdong, YE Zhiyin. Effect of Compatibilization on Foaming Behavior of PLA/PE-HD Blends[J]. China Plastics, 2019, 33(9): 50-56.

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Effect of Compatibilization on Foaming Behavior of PLA/PE-HD Blends

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