Preparation process of PLA/PPC/CS composite materials

doi:10.3969/j.issn.1000-1565.2024.05.008

Journal of Hebei University(Natural Science Edition) ›› 2024, Vol. 44 ›› Issue (5): 513-520.DOI: 10.3969/j.issn.1000-1565.2024.05.008

Preparation process of PLA/PPC/CS composite materials

ZHAO Zihan¹, MENG Lingyu², LI Xiangrui¹, LI Chunfeng¹, LIU Mingli¹

1. College of Materials Science and Engineering, Beihua University, Jilin 132013, China; 2. Institute of Forestry Resources Utilization, Jilin Academy of Forestry, Changchun 130117, China

Received:2024-03-13 Published:2024-09-25

Abstract

Abstract: To improve the toughness of the PLA/corn stalk composite, the introduction of polypropylene carbonate(PPC)was used. The PLA/PPC/corn stalk(PLA/PPC/CS)composite was prepared using a combination of melt extrusion and hot pressing. A single factor experiment was designed with hot pressing time, hot pressing pressure, and hot pressing temperature as variables, and the impact, bending, and tensile properties of the PLA/PPC/CS composite as evaluation indicators.The results showed that the hot pressing time, hot pressing pressure, and hot pressing temperature had significant effects on the mechanical properties of PLA/PPC/CS composites.The final optimized hot pressing process is: hot pressing time is 10 min, hot pressing pressure is 7.5 MPa, and hot pressing temperature is 190 ℃.

Key words: wood-plastic composite materials, polylactic acid, polypropylene carbonate, hot pressing process, mechanical property

CLC Number:

TB332

ZHAO Zihan, MENG Lingyu, LI Xiangrui, LI Chunfeng, LIU Mingli. Preparation process of PLA/PPC/CS composite materials[J]. Journal of Hebei University(Natural Science Edition), 2024, 44(5): 513-520.

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Preparation process of PLA/PPC/CS composite materials

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