一个新型的II型光启动器,自供应气,用于抗的交联聚乙烯薄膜
Fei Yang1, Zhaoyuan Jing1, Yingqiu Wang1
1College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
新的宏分子光发起剂, bis(4-甲) 酸 (BPMD) 和 bis(4-甲) 3,3'-(piperazine-1,4-diyl) bis(3-oxopropanoate) (DBPMD),提供增强的紫外线吸收和减少在聚乙烯中的迁移. 这些先进材料提高了UV交联聚乙烯的性能,包括抗拉强度和抗.
科学领域:
- 聚合物化学 聚合物化学
- 摄影化学的使用.
- 材料科学 材料科学 材料科学
背景情况:
- 传统的光启动剂,如4-基芬 (4-BP),在聚合物矩阵中可能会出现迁移问题.
- 发展宏分子光启动器对于提高UV可治疗系统的性能和减少迁移至关重要.
- 聚乙烯 (PE) 的紫外线交叉连接提供了更好的机械性能和耐化学物质.
研究的目的:
- 合成和描述新的宏分子光发起剂,BPMD和DBPMD.
- 为了评估它们的紫外线吸收特性,HDPE的迁移行为和光启动效率.
- 为了评估它们在聚乙烯薄膜的紫外线发起的交叉连接中的性能.
主要方法:
- 合成BPMD和DBPMD从4-BP,马洛尼尔化物和皮佩拉津.
- 使用FTIR和HNMR光谱学进行结构确认.
- 紫外线吸收,HDPE的迁移研究,光启动效率测试和机械性能评估 (抗拉强度,抗).
主要成果:
- 与4-BP相比,BPMD和DBPMD显示了增强的紫外线吸收和红移最大值.
- 与4-BP相比,HDPE中的BPMD和DBPMD的扩散率明显较低.
- 即使没有氨基激活剂,DBPMD也表现出优异的光启动效率,从而提高了UV交联PE薄膜的抗拉强度和爬行强度.
结论:
- BPMD和DBPMD是有效的宏分子光启动剂,具有改善的紫外线吸收和减少的迁移.
- 这些新的光启动器使得聚乙烯的高效紫外线启动交叉链接成为可能.
- BPMD和DBPMD显示出高性能UV交联聚乙烯应用的巨大潜力.
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