矿物钢塑复合材料与木塑复合材料性能对比研究  

Comparative Study on the Properties of Mineral Steel Plastic Composite Materials and Wood-Plastic Composite Materials

作　　者：卓林 纪琳 赵法敏 莫伟恒[1] 张建[1] 薛平[2] 陈轲 ZHUO Lin;JI Lin;ZHAO Famin;MO Weiheng;ZHANG Jian;XUE Ping;CHEN Ke(Guangxi Zhuang Autonomous Region Construction Engineering Quality Testing Center Co.,Ltd.,Nanning 530005,China;College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]广西壮族自治区建筑工程质量检测中心有限公司,广西南宁530005 [2]北京化工大学塑料机械及塑料工程研究所,北京100029

出　　处：《塑料工业》2024年第1期136-140,共5页China Plastics Industry

摘　　要：对矿物钢塑复合材料板材与传统木塑复合材料进行系统表征,并对外观及微观结构、无机组成成分、热性能和力学性能等进行了对比分析研究。扫描电镜(SEM)结果表明,矿物钢塑复合材料板材的形状规则、无翘曲变形,样品断面较为密实,而木塑板材液氮脆断面存在界面剥离,易发生变形翘曲。红外光谱(FTIR)结果表明,三种板材的基体材料均为聚氯乙烯(PVC)树脂,其特征峰与PVC红外光谱类似。热重分析(TG和DTG)表明,木塑复合材料的热失重速率和质量损失率大于其余两种矿物钢塑,矿物钢塑的热稳定性较木塑复合材料得到了较大提升。随着铸造灰和钢渣的加入,复合材料的弯曲强度和模量均得到了提高,且经铸造灰填充的矿物钢塑力学性能为三者中最高,其弯曲强度和弯曲模量分别为33.0 MPa和4.72 GPa。矿物钢塑复合材料具有优异的热性能、力学性能,作为一种新型绿色环保材料,为我国大宗工业固废的高附加值回收提供一种新的解决方案。Mineral steel plastic composite materials and traditional wood plastic composite materials were systematically characterized,and their appearance,microstructure,inorganic composition,thermal and mechanical properties were compared and analyzed.The scanning electron microscopy(SEM)results indicate that the mineral steel plastic composite material sheet has a regular shape,no warping deformation,and the sample cross-section is relatively dense.However,there is interfacial peeling phenomenon in the cross-section of the wood plastic sheet,which is prone to deformation and warping.The Fourier transform infrared spectroscopy(FTIR)results indicate that the matrix material of the three types of boards is PVC resin,and their infrared spectra are similar to those of PVC.Thermogravimetric analysis(TG and DTG)shows that the thermal and mass loss rates of wood-plastic composites are higher than those of the other two types of mineral steel plastics,and the thermal stability of mineral steel plastics is significantly improved compared to wood-plastic composites.With the addition of casting ash and steel slag,the bending strength and modulus of the composite material have been improved,and the mechanical properties of mineral steel filled with casting ash are the highest among the three,with bending strength and modulus of 33.0 MPa and 4.72 GPa,respectively.Mineral steel plastic composite materials have excellent thermal and mechanical properties,and as a new type of green and environmentally friendly material,they provide a new solution for the high value-added recycling of bulk industrial solid waste.

关 键 词：矿物钢塑复合材料 木塑复合材料 微观结构 力学性能 对比研究 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]