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同位素  1999 

聚氧化乙烯R-150辐射共聚水凝胶膜的理化性能研究

, PP. 129-129

Keywords: 聚氧化乙烯R-150(PEOR-150),聚乙烯醇(PVA),水凝胶,辐射交联,理化性能

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Abstract:

本工作研究了聚氧化乙烯R150与聚乙烯醇(PVA)经辐射共聚交联所形成的水凝胶膜的理化性能。实验结果表明聚氧化乙烯R150共聚水凝胶的交联密度与辐射剂量呈正相关,与混合物质量分数呈负相关,与聚乙烯醇含量则未见明显相关性;该水凝胶的交联密度明显低于单纯聚乙烯醇水凝胶的交联密度。聚氧化乙烯R150共聚水凝胶的平衡水含量与辐射剂量和聚乙烯醇含量呈负相关,与其混合物质量分数呈正相关,并且明显高于单纯聚乙烯醇的平衡水含量。聚乙烯醇水凝胶的硬度与辐射剂量呈正相关;聚氧化乙烯R150共聚水凝胶的硬度与其混合物质量分数呈负相关,而与聚乙烯醇含量呈正相关。混合物质量分数对聚氧化乙烯R150共聚水凝胶理化性能的影响与聚氧化乙烯R150和聚乙烯醇的双重作用有关。

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