Study on the Heat Resistance Performance of PLA/E-MA-GMA/PBS/talc Blends

LIU Zhi-gang, BIAN Jun-jia, HUAN Yue-wei, LI Jun-wen, SUN Li-na, ZHOU Wei-hua, YAN Xiang-yu

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Plastics Science and Technology ›› 2024, Vol. 52 ›› Issue (07) : 115-120. DOI: 10.15925/j.cnki.issn1005-3360.2024.07.025
Biological and Degradable Material

Study on the Heat Resistance Performance of PLA/E-MA-GMA/PBS/talc Blends

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Abstract

The study was to improve the heat resistance of polylactic acid (PLA) through blending modification. Ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) and poly(butylene succinate) (PBS) and talc powder (talc) were added to PLA matric to prepare PLA/E-MA-GMA/PBS/talc blends. The effects of PLA/E-MA GMA/PBS/talc content on the mechanical properties, flowability, rheological properties, heat resistance of the blends were studied. The results show that with the change of PLA/EMAGMA/PBS/ talc blend system, the tensile strength of the blends gradually decreases, while the toughness and impact strength gradually increase, indicating the existence of partial toughening and compatibility between the blend materials. Theheat deflection temperature of the untreated blends remains relatively stable at around 55 ℃, while the heat deflection temperature of the crystallized blends is generally higher than 90 ℃.

Key words

Poly(lactic acid) / Ethylene-methyl acrylate-glycidyl methacrylate / Poly(butylene succinate) / Heat resistance

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LIU Zhi-gang , BIAN Jun-jia , HUAN Yue-wei , et al . Study on the Heat Resistance Performance of PLA/E-MA-GMA/PBS/talc Blends. Plastics Science and Technology. 2024, 52(07): 115-120 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.07.025

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