3种纳米改性剂对聚氨酯仿木材料拉伸性能影响(上)  

Comparative Study on the Effect of Three Nano-Modifiers on the Tensile Properties of Polyurethane Imitation-Wood Materials

作　　者：孙萌 吴燕 秦婧荣 许萱 黄琼涛 SUN Meng;WU Yan;QIN Jingrong;XU Xuan;Huang Qiongtao(College of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing 210037,China;Yihua Life Technology Co.,Ltd,Shantou 515000,China)

机构地区：[1]南京林业大学家居与工业设计学院,南京210037 [2]宜华生活科技股份有限公司,汕头515000

出　　处：《家具》2019年第5期18-22,共5页Furniture

基　　金：2018年度南京林业大学大学生实践创新训练计划项目(2018NFUSPITP643);宜华生活科技股份有限公司科技创新项目(YH-JS-JSKF-201904003)

摘　　要：利用纳米二氧化硅(nano-SiO2)、纳米二氧化钛(nano-TiO2)和自制的纤维素纳米晶体(CNC)与聚氨酯复合制备纳米复合仿木材料,通过力学拉伸测试研究了纳米改性剂/聚氨酯复合仿木材料的拉伸性能差异。通过正交试验得出不同因素对聚氨酯改性的影响。在拉伸性能测试中对最大拉伸应力影响因素从大到小依次是KH550添加量、填料种类、密度、填料量。对于相对伸长率而言则是填料种类、填料量、KH550添加量、密度;CNC对聚氨酯的改性效果不显著,性能介于nano-SiO2和nano-TiO2改性效果之间。The SiO2 nanoparticles(nano-SiO2),TiO2 nanoparticles(nano-TiO2),and the obained nano-cellulose(CNC)were used to prepare for polyurethane nanocomposite imitation-wood materials.The mechanical properties of nano-modifier/polyurethane nanocomposite imitation-wood materials were evaluated by tensile and compresion test.The orthogonal experiment was designed to prepare for the modified polyurethane composites.The influence of different factors on the properties of polyurethane composite was evaluated.In tensile test at the maximum tensile stress,the influence factors descending order was the amount of KH550,filler type,density and fillers volume.For the relative elongation was filler type,filler content, KH550 volume and density.The effect of CNC on polyurethane modified was not significant,the effects of which was generally between SiO2 and TiO2.

关 键 词：纳米改性剂 仿木材料 拉伸性能 对比研究 

分 类 号：TS664[轻工技术与工程]