超高分子量聚乙烯纤维预辐照接枝丙烯酸甲酯

采用预辐照接枝的方法研究了丙烯酸甲酯（MA）单体在超高分子量聚乙烯（UHMWPE）纤维表面的接枝聚合反应。考察了吸收剂量、单体浓度、接枝聚合反应温度对接枝率的影响。结果表明：UHMWPE纤维接枝MA的接枝率较高，最高可达约151％，接枝率随吸收剂量、单体浓度、反应温度升’高而增加。用红外光谱法分析了接枝前后纤维官能团的变化，通过扫描电镜观察了接枝前后纤维表面的形貌。...

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Published in辐射研究与辐射工艺学报 Vol. 30; no. 6; pp. 328 - 332
Main Author 魏寒 邢哲 王谋华 吴国忠 沈青
Format Journal Article
LanguageChinese
Published 东华大学材料科学与工程学院 上海201620%中国科学院上海应用物理研究所 上海201800 2012
Subjects
丙烯酸甲酯
超高分子量聚乙烯
辐射接枝
辐射接枝
超高分子量聚乙烯
丙烯酸甲酯
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Summary:采用预辐照接枝的方法研究了丙烯酸甲酯（MA）单体在超高分子量聚乙烯（UHMWPE）纤维表面的接枝聚合反应。考察了吸收剂量、单体浓度、接枝聚合反应温度对接枝率的影响。结果表明：UHMWPE纤维接枝MA的接枝率较高，最高可达约151％，接枝率随吸收剂量、单体浓度、反应温度升’高而增加。用红外光谱法分析了接枝前后纤维官能团的变化，通过扫描电镜观察了接枝前后纤维表面的形貌。
Bibliography:Methyl acrylate （MA） monomer was grafted onto ultra-high molecular weight polyethylene （UHMWPE） fibers after irradiation by y-rays. The effects of absorption dose, monomer concentration and temperature on the degree of grafting （DG） were investigated. The grafting yield of MA reached to a considerable degree, approximately 151% at the maximum value. The DG of MA on UHMWPE fibers increased with the increment of absorption dose, temperature and concentration of MA. The function groups and morphologies of the
31-1258/TL
Ultra-high molecular weight polyethylene fiber, Methyl acrylate, Graft polymerization
WEI Han1 XING Zhe2 WANG Mouhua2 WU Gouzhong2 SHEN Qing1 l （Donghua University, Material Science and Engineering, Shanghai 201620, China） 2（Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China）
ISSN:1000-3436