温石棉纤维增强木塑材料在模板中的应用性能  

Chrysotile asbestos fiber reinforced wood-plastic composite and its application performances in formwork

作　　者：罗健林[1] 孙胜伟[2] 刘文清 李秋义[1] 胡小川 高嵩[1] 韩鹏 

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]哈尔滨工业大学土木工程学院,哈尔滨150090 [3]胜利油田胜利工程建设(集团)有限责任公司,东营257811

出　　处：《青岛理工大学学报》2013年第3期1-5,共5页Journal of Qingdao University of Technology

基　　金：山东省博士后创新项目专项资金资助项目(201003053)

摘　　要：结合表面修饰及振动磨处理工艺分散温石棉纤维(CAF),采用锟炼方法将CAF与木粉复合到聚丙烯基体中,热压成型CAF/木塑复合材料(CAF/WPC).通过三点弯曲法、摆锤冲击法、边缘/表面点燃法及表面磨耗量法分别表征其弯曲、冲击性能、阻燃性能和表面耐磨性能,并用显微镜观察试件断面形貌.结果表明:相比于空白WPC试样,掺有10%CAF的CAF/WPC的弯曲与冲击强度、阻燃时间和表面耐磨损量分别提高了38.95%、33.7%、20.17%、53.8%.质优价廉的CAF经预分散处理后能良好分散于WPC基体中,充当桥联增韧、延迟表面点燃时间及降低表面磨损量的增强相,满足CAF/WPC用作WPC建筑模板面层时的综合应用性能.Chrysotile asbestos fiber（CAF） is dispersed by surface-modification and vibrator treatment technique,CAF and wood flour are introduced into polypropylene（PP） matrix to form a CAF reinforced WPC composite（CAF/WPC） by the mixing roll and hot-press method.The flexural,impact,strength,flame-retardant,and wear-resistant performances of CAF/WPC are studied by three-point bending,pendulum impact testing,edge/surface-ignition,and surface wear loss method respectively.The cross-section morphology of the CAF/WPC sample is also observed.Results show the flexural,impact strength,flame-retardant time,and surface wear loss of the CAF/WPC with 10% CAF addition,increase 38.95%,33.7%,20.17% and 53.8% respectively.Cost effective CAF after pre-dispersed can be well dispersed to WPC,acting as multifunctional reinforcements of bridge-toughening,retarding surface ignition time,and decreasing surface wear loss,hereby the CAF/WPC can effectively satisfy the corresponding application performances when serving as the WPC formwork cover.

关 键 词：木塑(WPC)模板面层 温石棉纤维(CAF)分散 力学性能 阻燃性能 耐磨性能 

分 类 号：TB332[一般工业技术—材料科学与工程]