γ-射线辐照PBO纤维表面改性机理研究  

Modification mechanism of PBO fiber surface by γ-ray irradiation

作　　者：张春华[1] 黄玉东[1] 王世威[2] 孙宝华[2] 

机构地区：[1]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001 [2]哈尔滨玻璃钢研究院,黑龙江哈尔滨150036

出　　处：《材料科学与工艺》2007年第3期305-308,共4页Materials Science and Technology

基　　金：国家高技术研究发展计划资助项目(2002AA305109)

摘　　要：采用γ-射线辐照技术对PBO纤维表面进行接枝改性处理,通过X-射线光电子能谱(XPS)和氢核磁共振(1H NMR)方法对接枝改性效果进行了表征和研究.结果表明,γ-射线辐照使PBO纤维表面聚合物与辐照介质-环氧氯丙烷之间发生了化学接枝反应,接枝反应将极性官能团C-Cl,COOH和C-NH2引入PBO纤维表面,增加了纤维表面化学活性,改善了纤维表面化学惰性.PBO fiber surface was graft-modified using γ-ray irradiation technology. The modified result was analyzed and studied by X-ray photoelectron spectroscopy （XPS） and I H nuclear magnetism resonance （1H NMR） test. The results indicated that the grafting reaction between PBO fiber surface and the irradiation medium-epichlorohydrin was produced by the irradiation, and some polar groups such as C - C1, COOH, C - NH2 were introduced on the PBO fiber surface. Hence, the fiber surface chemical activity was increased.

关 键 词：PBO纤维 γ-射线辐照 表面改性 接枝反应 改性机理 

分 类 号：TB332[一般工业技术—材料科学与工程]