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基于硫甲基的高柔性聚氨泡的制备方法和特性

Han Han¹, Guangying Huang¹, Xilai Yan¹

¹College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, Fujian, China.

International journal of biological macromolecules

|July 27, 2025

概括

硫甲基化素增强了柔性聚氨泡,提高了热稳定性和柔软性. 这种以素为基础的泡为具有可控弹性的功能性产品提供了潜力.

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
可持续材料可持续材料

背景情况:

聚氨 (PU) 的生产严重依赖于石化产品.
生物质衍生聚合物宁为石化聚合物提供了一个可持续的替代品.
将素纳入PU可以增强泡的性能和环境效益.

研究的目的:

合成和描述基于硫甲基的柔性聚氨泡 (SLFPUF).
为了研究不同硫化水平的Kraft素 (KL) 对SLFPUF特性的影响.
为了评估开发的泡的热稳定性,柔软性,舒适性和形状记忆性能.

主要方法:

实力青素 (KL) 被硫化以产生硫甲基化青素 (SKL).
在SLFPUF的合成中,SKL被用作填充剂.
进行了热重量测量 (TG) 分析,支持因子 (SF),空气流量和弹性测试.

主要成果:

与SKL (0.286 mmol/g硫化) 合成的SLFPUF表现出增强的热稳定性,与对照组相比,其余质量比对照组高3.35%.
SLFPUF-0.286的支系数 (SF) 为4.99,表明其软度与LFPUF (1.89) 相比有所改善.
较低的空气流量 (756.9 Pa vs. 996.8 Pa) 表明舒适度提高,9.67%的弹性表明形状记忆潜力.

结论:

硫甲基化卡夫素是一种有效的方法,用于生产柔性聚氨泡的功能填充剂.
优化的SLFPUF表现出卓越的热稳定性,柔软性和舒适性.
开发的基于素的泡表现出形状记忆特性,为在功能性产品中的应用铺平了道路.

关键词:

柔性聚氨泡是一种柔性聚氨泡.卡夫特林尼尼 (英语:Kraft lignin) 是一种有机制的制材料.恢复力恢复力硫化硫化是一种硫化.

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