坚固且抗紫外线的可生物降解聚氨弹性体,基于提取的木质素和经过处理的木粉
Zi Feng He1, Chang Li1, Tian Xing Fang1
1Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
International journal of biological macromolecules
|March 22, 2025
概括
这项研究引入了从木粉废弃物中提取的新型生物降解聚氨弹性体. 这些先进材料具有很高的性,抗紫外线和生物降解性,展示了材料应用的可持续替代品.
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
- 生物质的价值化 生物质的价值化
背景情况:
- 聚氨是具有广泛应用的多功能聚合物.
- 可持续发展推动了对生物基和环保型聚氨的研究.
- 生物质废弃物的高价值利用,如木粉,仍然是一个挑战.
研究的目的:
- 从预处理的木粉中开发可生物降解的聚氨弹性体.
- 为了增强素的特性,用于作为聚氨合成中的交叉连接剂.
- 为了创建坚固,耐用和多功能的聚氨复合材料.
主要方法:
- 木面粉用氧化处理,以获得提取的木质素 (Elig) 和处理的木面粉 (AWF).
- 埃利格用聚烯酸 (PCL) 进行了修改,以创建一种生物宏分子交叉链接剂,用于基于素的聚氨 [PU(Plig) ].
- AWF被纳入PU (Plig) 中,以制造聚氨复合弹性体[PU (Plig@AWF) ].
主要成果:
- 聚乙烯 (PU) 复合材料表现出高性 (188.15 MJ/m3).
- 经过96小时的紫外线老化后,观察到优异的紫外线耐受性,压力和应变保留率高于77%.
- 证实了出色的生物降解性,在50天的土壤退化后显示了19.06%的质量损失.
- 弹性体展示了光/热电转换能力,为风扇提供动力.
结论:
- 这项研究成功地从木粉废料中生产出高性能,可生物降解的聚氨弹性体.
- 开发的材料为传统聚氨提供了一种可持续且具有成本效益的替代品.
- 该研究强调了生物质衍生材料在多功能应用中的潜力.
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