河北大学学报(自然科学版) ›› 2024, Vol. 44 ›› Issue (5): 513-520.DOI: 10.3969/j.issn.1000-1565.2024.05.008

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PLA/PPC/CS复合材料的制备工艺

赵梓函1, 孟令宇2, 李祥瑞1, 李春风1, 刘明利1   

  • 收稿日期:2024-03-13 出版日期:2024-09-25 发布日期:2024-09-25
  • 通讯作者: 刘明利(1978—)
  • 作者简介:赵梓函(2001—),男,北华大学在读硕士研究生,主要从事生物质复合材料方向研究.
    E-mail:zzh15613698638@163.com
  • 基金资助:
    吉林省创新创业人才项目(2023QN44);吉林省重点科技攻关项目(20220202095NC;20230202092NC);吉林省科技发展创新平台(基地)和人才专项(20220508119RC;20240601038RC);吉林省预算内基本建设资金(创新能力建设)项目(2022C039-4)

Preparation process of PLA/PPC/CS composite materials

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

  1. 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 Online:2024-09-25 Published:2024-09-25

摘要: 通过在聚乳酸(PLA)/玉米秸秆(CS)复合材料中引入聚碳酸亚丙酯(PPC)改善韧性,使用熔融挤出与热压成型相结合的方式制备聚乳酸/聚碳酸亚丙酯/玉米秸秆(PLA/PPC/CS)复合材料,以热压时间、热压压力和热压温度为变量,以PLA/PPC/CS复合材料的冲击、弯曲和拉伸性能为评价指标设计单因素试验.试验结果表明,热压时间、热压压力、热压温度对PLA/PPC/CS复合材料的力学性能影响显著.最终优化出的热压工艺条件为热压时间10 min,热压压力7.5 MPa,热压温度190 ℃.

关键词: 木塑复合材料, 聚乳酸, 聚碳酸亚丙酯, 热压工艺, 力学性能

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

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