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在不同的固化条件下,N,N'-甲基二甲胺交联聚烯酸水凝的结构,性能优化和吸附性能

Jinyu Zhang¹, Dezhi Qu^1,2, Shuyu Wang¹

¹College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.

|July 27, 2024

概括

紫外线固化聚烯酸水凝与热固化水凝相比,具有更高的机械强度. 然而,热固化水凝显示出增强的胀和吸水特性.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学

背景情况:

由于其独特的特性,水凝在各种应用中至关重要.
聚烯酸 (PAA) 水凝因其多功能性而受到广泛研究.

研究的目的:

为了研究交叉链接剂度对PAA水凝特性的影响.
为了比较PAA水凝制剂的紫外线和热固化方法.
分析准备的水凝的结构和机械特性.

主要方法:

用不同的交叉连接器比率合成的PAA水凝.
使用的固化方法:紫外线和热.
标识技术:FTIR,SEM,TGA. 这种技术可以
机械测试 (拉力和压力强度).

主要成果:

经过紫外线治愈的水凝显示出优越的机械性能.
在特定的比率和时间内通过UV固化实现的最大拉伸强度 (139kPa) 和压力强度 (0.16MPa).
热固化水凝表现出更高的吸水和膨胀能力.
在热固化PAA水凝中观察到1.91%和2.91%的交叉连接器比率的最佳胀,固化2小时.
交叉连接器度的增加减少了孔径大小和孔隙性,导致更密集的结构.

结论:

固化方法显著影响PAA的水凝特性.
紫外线固化是实现高机械强度的最佳方法.
热固化在需要高水吸收和膨胀的应用中是首选的.
交叉连接器度是定制水凝微结构和性能的一个关键因素.

关键词:

吸附性能吸附性能吸附性能治疗治疗治疗治疗治疗治疗聚烯酸水凝是一种多烯酸水凝.孔隙结构分析孔隙结构分析

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