冻融循环对木塑复合材料质量和防霉性能的影响  

Effect of Freeze-thaw Cycles on the Weight and Mold Resistance of Wood-plastic Composites

作　　者：冯静[1] 施庆珊[1] 黄小茉[1,2] 陈娟 陈仪本[1] 欧阳友生[1,2] 

机构地区：[1]广东省微生物研究所,广东省华南应用微生物重点实验室省部共建国家重点实验室培育基地,广东省微生物应用新技术公共实验室,广东省菌种保藏与应用重点实验室,广东广州510070 [2]广东迪美生物技术有限公司,广东广州510663

出　　处：《塑料工业》2013年第6期83-86,95,共5页China Plastics Industry

基　　金：广东省科技计划项目(2010B010800041,2011B010400031,2011B020310002);广州市科技计划项目(11A24060559)

摘　　要：主要研究了冻融循环对木粉/高密度聚乙烯(HDPE)(质量比60/40)、竹粉/HDPE(质量比60/40)复合材料质量变化及防霉性能的影响。结果表明:解冻温度和循环次数对木塑复合材料的质量变化有一定影响,当解冻温度为28℃,冻融循环后木塑材料的质量略有增加,随循环次数的增加而增大;而解冻温度为60℃时,则冻融循环后材料的质量略有下降,随循环次数的增加而下降更多。然而,对冻融循环后木塑材料防霉性能的测试结果表明:冻融循环(包括循环温度及循环次数)对木塑材料的防霉性能并无明显影响。This paper mainly researched the effect of freeze-thaw cycles on weight and mold resistance of the two wood-plastic composite （WPC） materials, wood-flour/HDPE （60/40） and bamboo-powder/HDPE （60/40）. The results showed that： thawing temperature and cycle numbers had an effect on the weight of wood-plastic composites. When the thawing temperature at 28 ~C, weight of WPC were increased slightly after freeze-thaw cycle, and the weight increased with increasing number of cycles ; when thawing temperature was 60 ~C, weight of WPC were decreased after freeze-thaw cycle, and the weight decreased with increasing cycle numbers. However, the mold resistance test showed, the freeze-thaw cycle had no significant effect on the mold resistance of WPC.

关 键 词：木塑复合材料 冻融循环 质量变化 防霉性能 

分 类 号：TQ321.5[化学工程—合成树脂塑料工业]