农业废物用于功能界面的再循环利用:用于纤维素材料的黄色洋皮染料
Ritesh Sharma1, Peppi Toukola2, Juha Jordan3
1School of Chemical Engineering, Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland.
ACS omega
|August 25, 2025
概括
黄洋皮提取物是一种可持续的多功能纤维素染料. 它为包装提供紫外线保护和抗氧化特性,但需要进一步研究织应用的潜在皮肤敏感性.
科学领域:
- 可持续材料科学
- 织品化学
- 绿色化学
背景情况:
- 越来越多的环境问题导致对天然染料的需求超过合成替代品.
- 黄洋皮是一种丰富的农业废物,有可能成为天然染料来源.
- 棉花和纤维素纳米纤维 (CNF) 薄膜等纤维素基板在织品和包装中广泛使用.
研究的目的:
- 研究黄色洋皮提取物作为纤维素材料的可持续染料.
- 评估染料的功能性质,包括紫外线保护,抗氧化活性和染料稳定性.
- 探索增强染料吸收的生物基和金属剂,并比较它们的有效性.
主要方法:
- 使用黄色洋皮提取物与各种剂 (素,酸,有机酸,金属剂) 染色CNF薄膜和棉织物.
- 在现场监测表面相互作用以优化染色条件.
- 评估紫外线屏蔽 (阻紫外线的百分比) 和抗氧化特性 (DPPH激素清除活性).
- 对染色棉织物的颜色深度 (K/S值) 和强度特性 (光强度 - LF) 的评估.
- 使用KeratinoSens (相当于经合组织测试指南442D) 进行皮肤潜在敏感性的体外评估.
主要成果:
- 染色的CNF薄膜表现出优异的紫外线屏蔽 (高达90%的紫外线屏蔽) 和显著的抗氧化活性 (82%的DPPH清除基).
- 在低度 (0.125 g/L) 染色的棉织物显示了中等的颜色深度和坚固性 (LF 3-5).
- 生物基聚电解质表现为剂的有效性,与金属剂相比.
- 初步结果表明,在较高度下,染料可能会对皮肤产生敏感作用,因此需要进一步调查.
结论:
- 黄色洋皮提取物是纤维素材料的有希望的功能性染料,提供紫外线保护和抗氧化功效.
- 提取物显示出在保护性包装和功能性织品中的应用潜力.
- 进一步的研究是必不可少的,以充分了解和减轻织应用的潜在皮肤敏感性,并优化染色过程以获得更深的色彩和更好的坚固性.
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