四种壳类纤维/聚氯乙烯木塑复合材料的蠕变及磨损性能  

Creep and wear properties of four different types of husk fibers/polyvinyl chloride composites

作　　者：陈冬梅 姜良朋 刘丁宁 付菁菁[1,2] 何春霞 CHEN Dongmei;JIANG Liangpeng;LIU Dingning;FU Jingjing;HE Chunxia(College of Engineering, Nanjing Agricultural University, Nanjing 210031, China;Key Laboratory of Intelligence Agricultural Equipment of Jiangsu Province, Nanjing 210031, China)

机构地区：[1]南京农业大学工学院,南京210031 [2]江苏省智能化农业装备重点实验室,南京210031

出　　处：《复合材料学报》2018年第6期1464-1471,共8页Acta Materiae Compositae Sinica

基　　金：国家科技支撑计划(2011BAD20B03-2)

摘　　要：选用4种壳类纤维—椰子壳、榛子壳、核桃壳和稻壳为填充材料,聚氯乙烯(PVC)为基体材料,制备壳类纤维/PVC复合材料,对4种壳类纤维进行了FTIR和热分析,对4种壳类纤维/PVC复合材料进行蠕变及磨损性能测试。结果表明:4种壳类材料中,稻壳纤维中纤维素含量最高,为43.6%,稻壳纤维/PVC复合材料具有较好的结合界面和力学性能,其压缩、拉伸和弯曲强度最高,分别为43.1 MPa、23.2 MPa和46.1 MPa,比强度最低的核桃壳纤维/PVC复合材料分别高出13.7%、33.3%和21.0%,在相同应力作用下,稻壳纤维/PVC复合材料蠕变应变值最小;在相同磨损条件下,稻壳纤维/PVC复合材料的比磨损率最小,其摩擦系数亦为最小。Four kinds of husk fibers,coconut shell,hazelnut shell,walnut shell and rice husk were used as filler material and polyvinyl chloride as the base material to prepare the husk fiber/polyvinyl chloride composites.Four kinds of husk fibers were analyzed by comprehensive thermal analyzer and FTIR.The creep and wear properties of four kinds of husk fiber/polyvinyl chloride composites were tested.The results show that the cellulose content in rice husk is 43.6%,which is the highest in the four kinds of husk fibers.The rice husk fiber/polyvinyl chloride composites have good interface and mechanical properties,and their compressive,tensile and flexural strength are the highest,which is 43.1 MPa,23.2 MPa and 46.1 MPa,and increase by 13.7%,33.3% and 21.0%,respectively,compared with walnut shell fiber/polyvinyl chloride composites of lowest strength.Under the same stress,the creep strain of rice husk fiber/polyvinyl chloride composites is the smallest.Under the same wear conditions,the specific wear rate of rice husk fiber/polyvinyl chloride composites is the smallest,while their friction coefficient is also the smallest.

关 键 词：壳类纤维 聚氯乙烯 复合材料 蠕变 磨损 

分 类 号：TB332[一般工业技术—材料科学与工程]