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Kevlar纤维的聚丙二醇及丁烯二醇改性研究
引用本文:郑玉婴,王灿耀,傅明连,蔡伟龙,王良恩.Kevlar纤维的聚丙二醇及丁烯二醇改性研究[J].光谱学与光谱分析,2005,25(3):402-404.
作者姓名:郑玉婴  王灿耀  傅明连  蔡伟龙  王良恩
作者单位:福州大学化学化工学院,福建,福州,350002
基金项目:福建省发展计划委员会项目(闽计高技[2002]161),福建省自然科学基金(E0110013),福建省“科技三项”项目基金(K2002009),福州大学科技发展基金(XKJ[QD]0104)资助
摘    要:探讨了聚丙二醇(PPG)及2-丁烯-1,4-二醇对Kevlar纤维的改性机理,并采用红外光谱分析法考察了Kevlal纤维表面用甲苯-2,4-二异氰酸酯(TDI)酯化的情况。同时分别分析了用聚丙二醇和丁烯二醇对Kevlar纤维封端后产物的红外光谱图,结果表明:封端后样品在1700~1720cm^-1处的吸收峰得到了加强,即-NCO转化成-CONH-,封端效果明显;在相同用量的条件下,丁烯二醇的封端效果明显优于PPG。文中还比较了不同的nTDl:n丁烯二醇 值对稳定化产物封端效果的影响,表明过量的丁烯二醇不利于纤维的进一步反应,nTDl:n丁烯二醇应控制在1:1左右。

关 键 词:2-丁烯  聚丙二醇  封端  Kevlar纤维  二异氰酸酯  改性  产物  TD  过量  PPG
文章编号:1000-0593(2005)03-0402-03
修稿时间:2003年12月16

Research on the Modification of Kevlar Fiber by Polypropylene Glycol and Cis-2-Butene-1,4-Diol
ZHENG Yu-ying,WANG Can-yao,FU Ming-lian,CAI Wei-long,WANG Liang-en.Research on the Modification of Kevlar Fiber by Polypropylene Glycol and Cis-2-Butene-1,4-Diol[J].Spectroscopy and Spectral Analysis,2005,25(3):402-404.
Authors:ZHENG Yu-ying  WANG Can-yao  FU Ming-lian  CAI Wei-long  WANG Liang-en
Institution:College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China.
Abstract:The mechanism of the modification of Kevlar fiber by polypropylene glycol(PPG) and cis-2-butene-1, 4-diol was studied in the paper, the authors learned the esterification of toluene-2, 4-diisocyanate (TDI) onto Kevlar fiber by infrared spectrum. In the mean time, the infrared spectrograms of the productions which steadily disposed by PPG and butendiol were analysed respectively, the result showed that the intensity of the bands was reinforced at about 1700-1720 cm(-1) after the samples were steadily disposed, that is to say, the group of --NCO has been stabilized into --NHCO group, the effect of steady disposal was obvious; but the disposal effect of butendiol was apparently better than PPG's at the same condition. Finally, the authors compared the influence of different mol rates between TDI and butendiol on the productions. Based onthe consequence, excessive butendiol would prevent the Kevlar fiber from farther reaction, therefore, the mol rate between TDI and butendiol should approach 1:1.
Keywords:Kevlar fiber  Polypropylene glycol  Butendiol  Infrared spectrum  Steady disposal
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