发泡剂对PVC木塑复合装饰板性能的影响  

The Effects of the Foaming Agent on Properties of PVC Wood-Plastic Composite Decorative Boards

作　　者：刘刚连[1] 龚迎春[2] 吴章康[1] 汤正捷[1] 

机构地区：[1]西南林业大学材料工程学院,云南昆明650224 [2]中国林业科学研究院木材工业研究所,北京100091

出　　处：《西南林业大学学报（自然科学）》2015年第2期105-109,共5页Journal of Southwest Forestry University：Natural Sciences

基　　金：云南省教育厅科学研究基金一般项目(2013Y113)资助;功能型木塑复合材料产业化关键技术研究项目(31261801)资助

摘　　要：通过测试PVC基木塑装饰板的物理力学性能,研究复合发泡剂配比和发泡剂添加方式对PVC木塑装饰板的密度、抗弯强度、表面结合强度、板面握螺钉力和72 h吸水厚度膨胀率的影响。结果表明:添加当复合发泡剂AC、Zn O、Na HCO3配比为6∶1∶4时,PVC木塑复合装饰板的抗弯强度、表面结合强度、板面握螺钉力最大,分别为21.08 MPa、0.67 MPa、0.82 k N,达到GB/T 24137—2009《木塑装饰板》的要求;采用直接添加发泡剂的PVC木塑复合装饰板的力学性能优于采用先混合物料后添加发泡剂的PVC木塑复合装饰板的力学性能。The effects of the ratios and adding ways of foaming agent on the properties of the PVC wood-plastic composite（WPC）decorative boards by testing the physical and mechanical properties.Results showed that,when the ratio of composite foaming agent AC,ZnO,NaHCO3 was 6∶1∶4,the bending strength,the surface bonding strength,and the screw holding capability of WPC decorative boards to maximum were 21. 08 MPa,0. 67 MPa,0. 82 KN,respectively.And then they met the GB/T 24137—2009standards.The mechanical properties of WPC decora-tive boards with directly adding the composite foaming agent were better than that with first mixing and then adding the foaming agent.

关 键 词：木塑装饰板 聚氯乙烯 发泡剂 力学性能 

分 类 号：S781.2[农业科学—木材科学与技术]