连续纤维增强PVC木塑复合材料的力学性能及收缩率的研究  

Study on the Mechanical Properties and Shrinkage of Continuous Fiber Reinforced PVC Composite Materials

作　　者：李影 刘建中 刘涛 LI Ying;LIU Jian-zhong;LIU Tao(Guangdong Kingfa SCI.＆TECH.Co.Ltd.,Guangdong High Performance Environmental Protection Biomass Fiber Composite Material Engineering Technology Research Center,Qingyuan 510500,Guangdong,China)

机构地区：[1]广东金发科技有限公司广东省高性能环保生物质纤维复合材料工程技术研究中心,广东清远510500

出　　处：《合成材料老化与应用》2018年第4期29-32,共4页Synthetic Materials Aging and Application

摘　　要：考察不同基体的连续纤维片材增强PVC基木塑复合材料制品的力学性能和产品的热收缩率。采用共挤技术挤出的玻纤增强复合地板2#,较普通木塑地板,弯曲强度增加164%,弯曲模量增加180%,最大力增加165%。并且其力学性能要略优于玻纤增强复合地板1#。而玻纤增强复合地板2#中玻纤与地板基材的粘合情况要明显好于玻纤增强复合地板1#,未出现脱粘现象。随着温度的升高,玻纤增强地板2#的力学性能逐渐降低,但是降低幅度明显小于普通木塑地板,略小于玻纤增强复合地板1#。采用共挤技术挤出的玻纤增强复合地板2#,在不同高温下的长度收缩率最大为0.4‰。当温度处于-20℃~80℃范围内循环波动时,地板收缩仅为0.7‰。The mechanical properties and heat shrinkage of the continuous fiber reinforced PVC wood plastic and composites were investigated. Fiberglass reinforced composite flooring 2#,which was extruded by co-extrusion technology,compared to normal wood-plastic flooring,the bending strength increased by 164%,the bending modulus increased by 180%,and the maximum force increase was 165%. And its mechanical properties were slightly better than that of glass fiber reinforced flooring 1#. However,the adhesion of the glass fiber and substrate of fiber reinforced composite 2 # was significantly better than that of glass fiber reinforced composite 1 #. With the increase of temperature,the mechanical properties of glass fiber reinforced composite 2 # were gradually reduced,but the reduction was significantly smaller than that of ordinary wood-plastic flooring,which was slightly smaller than that of glass fiber reinforced composite 1 #. For glass fiber reinforced composite 2 # extruded by co-extrusion technology,the shrinkage rate of length was 0. 4 ‰ at different high temperatures. When the temperature was in the range of-20℃ - 80℃,the floor shrinkage rate of length was 0. 7 ‰.

关 键 词：木塑复合材料 收缩率 力学性能 线性热膨胀系数 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]