气态TDI对纸张聚氨酯化处理及其机理的研究  

A study on polyurethane treatment and its mechanism of paper treated with gaseity TDI

作　　者：王鹏 谢益民[2] 范建云 

机构地区：[1]莆田市产品质量监督检验所,福建莆田351100 [2]山东轻工业学院制浆造纸科学与技术省部共建教育部重点实验室,济南250353

出　　处：《中华纸业》2009年第4期26-30,共5页China Pulp & Paper Industry

基　　金：福建省青年科技人才创新资助项目(2007F3122)。

摘　　要：研究了气态甲苯-2,4-二异氰酸酯(TDI)与滤纸的接枝共聚方法。用傅里叶变换衰减全反射红外光谱(FTIR-ATR)分析了滤纸聚氨酯化结构形成的机理。研究结果表明:滤纸经聚氨酯化处理后,可以使滤纸中的纤维之间产生氨基甲酸酯结构的连接,把纤维之间的氢键结合转化为化学键结合,从而增强纤维之间的连接,对滤纸的抗水性、耐破度、挺度、伸长率以及湿强度等物理指标有明显改善,尤其为纸张在包装、建筑等工农业生产中开辟更为广阔的前景。The methods of graft copolymerization of gaseity TDI with filter paper were investigated. FTIR-ATR was used to analyze the chemical mechanism of the formation of the polyurethane derived from filter paper. The findings indicate that carbamate bond is formed between TDI and carbohydrates in fibers when the filter paper is treated with TDI. The treatment can change hydrogen bond combination into chemical bond combination, thus strengthening the combination among fibers and remarkably improving the physical properties of filter paper, especially water-resistant performance, bursting strength, stiffness, extensibility and wet strength. So this treatment broaden the application of paper in such industrial and agricultural fields as packaging and construction.

关 键 词：气态甲苯-2 4-二异氰酸酯 滤纸 聚氨酯 氨基 甲酸酯 

分 类 号：TS714[轻工技术与工程—制浆造纸工程]