油茶果壳对PE-HD力学性能的影响
吴昊,陈沛均,胡传双,古今,关丽涛
华南农业大学材料与能源学院,生物基材料与能源教育部重点实验室,广州 510642
Effects of Camellia Oleifera Shell on Mechanical Properties of PE-HD
Wu Hao, Chen Peijun, Hu Chuanshuang, Gu Jin, Guan Litao
Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
摘要:以废弃油茶果壳和高密度聚乙烯(PE-HD)为原料,采用挤出成型工艺制备了PE-HD/油茶果壳复合材料。采用热重法测试了油茶果壳的热稳定性,研究了油茶果壳平均粒径、添加量及相容剂马来酸酐接枝聚乙烯(MAPE)添加量对复合材料力学性能的影响。结果表明,油茶果壳初始热解温度为211℃,热解残炭率达31.35%。随着油茶果壳平均粒径减小、油茶果壳和MAPE添加量增加,复合材料的拉伸、弯曲和缺口冲击强度均呈现先增大后减小的趋势。当油茶果壳平均粒径为380 μm,添加量为40份,MAPE添加量为3份时,复合材料的力学性能最佳。
Abstract:The high-density polyethylene (PE-HD)/Camellia oleifera shell composites were prepared from waste Camellia oleifera shell and PE-HD by extrusion process. The thermal stability of Camellia oleifera shell was tested by thermogravimetric analysis. The effects of average particle size and additive amount of Camellia oleifera shell, and additive amount of compatibilizer maleic anhydride grafted polyethylene (MAPE) on the mechanical properties of the composites were studied. The results show that the initial pyrolysis temperature of Camellia oleifera shell is 211℃, and the pyrolysis carbon residue rate reaches 31.35%. With the decrease of Camellia oleifera shell average particle size and the increase of additive amounts of Camellia oleifera shell and MAPE, the tensile strength, bending strength and notched impact strength of the composites all increase first and then decrease. The best mechanical properties of the composites are obtained when the average particle size of Camellia oleifera shell is 380 μm, the addition amount of Camellia oleifera shell is 40 phr, and the addition amount of MAPE is 3 phr.
关键词:油茶果壳;马来酸酐接枝聚乙烯;粒径;复合材料;力学性能
Keywords:Camellia oleifera shell; maleic anhydride grafted polyethylene; particle size; composite; mechanical property
基金:广东省科技计划项目(2019A050503009),广东省林业科技创新项目(2020KJCX008)
本文引用格式:
吴昊,陈沛均,胡传双,等.油茶果壳对PE-HD力学性能的影响[J].工程塑料应用,2021,49(3):135-139.
Wu Hao,Chen Peijun,Hu Chuanshuang,et al. Effects of camellia oleifera shells on mechanical properties of PE-HD[J]. Engineering Plastics Application,2021,49(3):135-139.
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