纳米CaCO_(3)/丁苯胶乳增韧柔性木塑复合材料的研究  

Research on Nano-CaCO_(3)/Styrene Butadiene Latex Toughened Flexible Wood-plastic Composites

作　　者：王朝辉 王驰 李航 袁光明[1,2] WANG Zhaohui;WANG Chi;LI Hang;YUAN Guangming(School of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,China;“Efficient Utilization of Wood and Bamboo Resources”2011 Collaborative Innovation Center,Hunan Universities,Changsha 410004,China)

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004 [2]“木竹资源高效利用”湖南省高校2011协同创新中心,湖南长沙410004

出　　处：《塑料工业》2022年第8期63-68,共6页China Plastics Industry

基　　金：国家自然科学基金(32171708,31770606);国家重点研究计划(2019YFE0114600);湖南省科技创新计划资助(2021RC4062)。

摘　　要：柔性木塑复合材料作为一种柔软的、可弯曲的、可卷曲的新型木塑复合材料,在铺地材料、室内装饰等领域有广泛的发展和应用前景。以纳米CaCO_(3)和丁苯胶乳采用共沉积法制备纳米级复合粒子,对柔性木塑复合材料增韧改性。通过傅里叶红外光谱、扫描电镜等对其化学结构、断面形貌和力学性能等进行表征。结果表明,纳米级复合粒子成功制备,且当纳米CaCO_(3)与丁苯胶乳质量比为5∶3时,综合力学性能达到最佳。冲击强度、拉伸强度、断裂伸长率对比未经改性的柔性木塑复合材料分别提升了160.5%、56.8%、156.5%,复合材料韧性得到了大幅度提升。As a soft, bendable and curable new type of wood-plastic composite material, flexible wood-plastic composites had a wide range of development and application prospects in the fields of flooring materials and interior decoration.Nano-scale composite particles were prepared by co-deposition of nano-CaCO_(3) and styrene butadiene latex to toughen flexible wood-plastic composites.The chemical structure, cross-sectional morphology and mechanical properties were characterised by Fourier infrared spectroscopy and scanning electron microscopy.The results show that the nanoscale composite particles are successfully prepared and that the best overall mechanical properties are achieved when the mass ration of nano-CaCO_(3) and styrene butadiene latex is 5∶3.Impact strength, tensile strength and elongation at break of the toughened composite increase 160.5%,56.8%and 156.5%,respectively, comparing with the unmodified flexible wood-plastic composite, and the toughness of the composite is substantially improved.

关 键 词：柔性木塑复合材料 丁苯胶乳 共沉积 增韧 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]