共混工艺对长竹纤维/聚丙烯共混材料力学性能的影响  

Effect of Blend-Processing on Mechanical Properties of Bamboo Long-Fiber/Polypropylene(PP) Compositie

作　　者：李敏雯 张钦发[2] 李夏君 张艳[2] 

机构地区：[1]无限极(中国)有限公司,广东广州510640 [2]华南农业大学食品学院,广东广州510640

出　　处：《塑料》2017年第1期43-45,共3页Plastics

摘　　要：竹纤维具有较高的拉伸强度和模量,应用于增强高分子材料的强度,与塑料共混可以作为一种新型的绿色环保型复合材料,具有广泛的应用前景。研究了竹纤维与PP的共混工艺,分析了偶联剂对竹纤维预处理、纤维的比例以及注塑温度对竹纤维/PP共混材料的物理和力学性能的影响,结果表明:采用马来酸酐类偶联剂处理纤维,可有效提高竹纤维/PP共混材料的力学性能,同时当纤维比例为10%时,纤维/PP共混材料的弯曲性能较佳,而纤维比例为30%时,其拉伸强度最大,纤维/PP共混材料注塑最佳温度为210℃。Bamboo fiber was naturalvegetable fibers （NVF） with the higher tensile strength and elasticity modulus and would be applied to enhance strength of polymer, Bamboo fiber/Plastics composite was novel and environment-friendly material and would be applied extensively. Processing of blending of Bamboo fiber with polypropylene （PP） was studied and effect of pretreatment of Bamboo fiber with coupling reagent, Bamboo fiber content and injection temperature on physical and mechanical properties were investigated, The results showed that mechanical properties of Bamboo fiber/Polypropylene （PP） composites would be improved by pretreating Bamboo fibe with Maleic anhydride, bending strength of Bamboo fiber/ Polypropylene（PP） composite was optimum when Bamboo fiber content was 10% and tensile strength was optimum when Bamboo fiber content was 30% ,optimum injection temperature of Bamboo fiber/Polypropylene（PP） composite was 210 ℃.

关 键 词：竹纤维 聚丙烯 共混工艺 注塑 力学性能 

分 类 号：TB323[一般工业技术—材料科学与工程] TQ325.14[化学工程—合成树脂塑料工业]