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TDI对聚丙烯/木粉复合材料性能的影响——改性剂TDI用量和木粉用量的影响
引用本文:朱德钦,生瑜,苏晓芬,邹寅将,罗俊贤,郑旺财.TDI对聚丙烯/木粉复合材料性能的影响——改性剂TDI用量和木粉用量的影响[J].福建林学院学报,2011,31(3):276-280.
作者姓名:朱德钦  生瑜  苏晓芬  邹寅将  罗俊贤  郑旺财
作者单位:1. 福建省高分子材料重点实验室,福建福州350007;福建师范大学化学与材料学院,福建福州350007
2. 福建师范大学化学与材料学院,福建福州,350007
基金项目:福建省科技厅重点资助项目,福建省自然科学基金,福建省教育厅资助项目
摘    要:研究了甲苯-2,4-二异氰酸酯(TDI)及其改性木粉的用量对聚丙烯(PP)/木粉复合材料性能的影响,发现适量的TDI可以提高复合材料的力学性能和加工性能.用接触角、SEM等手段研究了产生这一结果的原因.接触角分析表明改性后木粉亲水性下降,与PP界面张力减小,TDI有利于木粉与PP相容性的提高.SEM结果显示,改性后木粉...

关 键 词:聚丙烯  木粉  异氰酸酯  界面性质  力学性能

Effects of TDI on properties of PP/wood flour composites——Effects of amounts of modifier TDI and wood flour
ZHU De-qin,SHENG Yu,SU Xiao-fen,ZOU Yin-jiang,LUO Jun-xian,ZHENG Wang-cai.Effects of TDI on properties of PP/wood flour composites——Effects of amounts of modifier TDI and wood flour[J].Journal of Fujian College of Forestry,2011,31(3):276-280.
Authors:ZHU De-qin  SHENG Yu  SU Xiao-fen  ZOU Yin-jiang  LUO Jun-xian  ZHENG Wang-cai
Abstract:Effects of amounts of toluene 2,4-diisocyanate(TDI) and its modified wood flour on properties of polypropylene/wood flour composites were explored.The modification effects of TDI were studied by means of contact angles and SEM.Contact angle analysis showed that hydrophilicity of modified wood flour and interfacial tension between it and PP decreased,so TDI can help to improving the compatibility between wood flour and PP.Appropriate amount of TDI can improve the mechanical properties and processing flow ability of PP/wood flour composites.When the amount of TDI was 0.4 wt% of wood flour,comprehensive performance of composite material reaches the best value.SEM showed that the interfacial region between polypropylene matrix and wood flour in the PP/modified wood flour composites became closer and blurrier in comparison with PP/unmodified wood flour composite.
Keywords:polypropylene  wood flour  toluene 2  4-diisocyanate  interface property  mechanical property
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