中国农业科技导报 ›› 2022, Vol. 24 ›› Issue (10): 161-168.DOI: 10.13304/j.nykjdb.2022.0572

• 生物制造 资源生态 • 上一篇    

生物炭对玉米醇溶蛋白/聚丙烯复合材料力学性能的影响

魏俞涌1(), 张庆法2, 盛奎川2()   

  1. 1.嘉兴职业技术学院,浙江 嘉兴 314036
    2.浙江大学生物系统工程与食品科学学院,杭州 310058
  • 收稿日期:2022-07-11 接受日期:2022-08-03 出版日期:2022-10-15 发布日期:2022-10-25
  • 通讯作者: 盛奎川
  • 作者简介:魏俞涌 E-mail: weiyuyong66@sina.com
  • 基金资助:
    嘉兴市科技计划项目(2019AY11022);中国博士后自然科学基金项目(2021M692807);浙江省自然科学基金项目(LY22C160003);国家自然科学基金项目(31971794)

Effect of Biochar on Mechanical Properties of Zein/Polypropylene Composites

Yuyong WEI1(), Qingfa ZHANG2, Kuichuan SHENG2()   

  1. 1.Jiaxing Vocational and Technical College,Zhejiang Jiaxing 314036,China
    2.College of Biosystems Engineering and Food Science,Zhejiang University,Hangzhou 310058,China
  • Received:2022-07-11 Accepted:2022-08-03 Online:2022-10-15 Published:2022-10-25
  • Contact: Kuichuan SHENG

摘要:

为实现玉米醇溶蛋白(Zein)的材料化利用,以生物炭、聚丙烯(polypropylene,PP)、Zein为原料制备复合材料(Zein/PP),探究生物炭对Zein/PP复合材料力学性能的影响。结果表明,生物炭与Zein均没有改变PP的晶面结构,生物炭降低了Zein/PP复合材料的相对结晶度;生物炭的多孔结构与PP形成了一种稳定的界面结构,进而改善了Zein/PP复合材料的弯曲性能、拉伸性能、冲击强度、刚性、弹性、尺寸稳定性。当生物炭的含量为15%时,复合材料的综合力学性能最佳,其弯曲强度、弯曲模量、拉伸强度、拉伸模量、断裂伸长率、冲击强度分别为44.68 MPa、2.66 GPa、24.27 MPa、0.29 GPa、7.07%、6.10 kJ·m-2。试验结果可为Zein/PP复合材料性能的改善提供依据。

关键词: 生物炭, 玉米醇溶蛋白, 聚丙烯, 复合材料, 力学性能

Abstract:

In order to realize material utilization of zein, the composite was prepared using biochar, polypropylene (PP) and zein, and the effect of biochar on mechanical properties of Zein/PP composite was studied. The results showed that the increase of biochar did not change the crystal structure of PP and reduced the relative crystallinity of Zein/PP composites. The stable interface structure formed by biochar pores and PP matrix improved the flexural properties, tensile properties, impact strength, rigidity, elasticity, and dimensional stability of Zein/PP composites. When the content of biochar was 15%, the composites obtained the best mechanical properties, and the flexural strength, flexural modulus, tensile strength, tensile modulus, elongation at break and impact strength were 44.68 MPa, 2.66 GPa, 24.27 MPa, 0.29 GPa, 7.07% and 6.10 kJ·m-2, respectively. The results provided a basis for improving the properties of Zein/PP composites.

Key words: biochar, zein, polypropylene, composites, mechanical properties

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