Research on cold plasma modified PLA fiber/TPS composites

doi:10.19936/j.cnki.2096-8000.20230728.006

Abstract

Abstract: To improve the mechanical properties of composites by improving the interfacial compatibility between polylactic acid fibers (PLAF) and thermoplastic starch (TPS), the PLAF was modified by cold plasma. And the TPS was prepared by torque rheometer, and PLAF/TPS composite was prepared by compression molding. The effects of different power cold plasma, different fiber lengths, and different fiber contents on the mechanical properties of composites were explored. The results showed that the higher the power of the cold plasma modification treatment, the higher the tensile strength and flexural strength of the composites prepared by the modified PLA fibers, but had little effect on the impact properties of the composites. When the fiber length was 10 mm, the fiber content was at 20%, the comprehensive mechanical properties of the fiber are relatively good: the tensile strength was 16.15 MPa, the bending strength was 56.12 MPa, and the impact strength was 5.54 kJ/m².

Key words: polylactic acid fiber, biodegradable, composite, thermoplastic starch, mechanical property

CLC Number:

TB332

CHEN Yingxuan, MA Huihuang, SUN Ming, YANG Shaoxia, CHEN Jianpei, ZHOU Xiaodong. Research on cold plasma modified PLA fiber/TPS composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(7): 44-49.

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