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将不同防腐剂处理后的玉米秸秆皮(CSF)、高密度聚乙烯(HDPE)塑料和其他添加剂共混,熔融复合后,采用挤出成型制备CSF/HDPE复合材料。考察了玉米秸秆皮添加量、防腐剂种类及其处理浓度对复合材料力学性能的影响,并利用扫描电镜(SEM)和红外光谱(FTIR)对复合材料进行表征。结果表明:经氨溶铜季铵盐(ACQ)处理后,随ACQ浓度增加,复合材料力学性能逐渐降低;玉米秸秆纤维质量分数为50%、ACQ质量分数为1%时,玉米秸秆皮/HDPE复合材料的力学性能最佳。经硼酸锌(ZB)处理后,随ZB浓度的增加,复合材料拉伸强度逐渐增强;弯曲强度、弯曲模量、冲击强度均呈现先增大后减小的趋势;玉米秸秆纤维质量分数为50%、ZB质量分数为2%时,CSF/HDPE复合材料的力学性能最佳。
CSF, HDPE plastic and other additives were blended with different preservatives, and melt-compounded. Then the CSF / HDPE composites were prepared by extrusion molding. The effects of the amount of corn stalks and the types of preservatives and their concentrations on the mechanical properties of the composites were investigated. The composites were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The results showed that the mechanical properties of composites decreased with the increase of ACQ concentration when ACQ was treated with ACQ. When corn stalk fiber content was 50% and ACQ content was 1%, corn stalk sheath / HDPE The best mechanical properties of composites. The tensile strength, flexural modulus and impact strength of ZB composites increased first and then decreased with the increase of ZB concentration, and the fiber mass fraction of corn stalk was 50 % And ZB mass fraction of 2%, the mechanical properties of the composites are the best.