NaClO-氧化纤维素纳米纤维/奇托桑复合膜具有提高的抗水性和高机械强度
Madhurangika Panchabashini Horathal Pedige1, Rika Onishi1, Yoshiro Hatanaka2
1Department of Applied Chemistry, Graduate School of Engineering, The University of Osaka 2-1 Yamadaoka Suita Japan a_sugawara@chem.eng.osaka-u.ac.jp uyama@chem.eng.osaka-u.ac.jp +81-6-6879-7365 +81-6-6879-7364.
RSC advances
|February 19, 2026
概括
这项研究开发了耐水纤维素纳米纤维 (CNF) 复合膜,使用氧化CNF和奇托. 这些环保薄膜为湿度敏感的包装应用提供了增强的机械强度和耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 生物材料是一种生物材料.
背景情况:
- 纤维素纳米纤维 (CNFs) 是塑料的可持续替代品,但由于水友性,其抗水性较差.
- 提高CNF的耐水性,同时保持机械性能,对于更广泛的应用至关重要.
- 现有的限制限制了CNF在潮湿或水性环境中的使用.
研究的目的:
- 使用氧化CNF (OCNF) 和酸盐 (CS) 制造耐水复合膜.
- 提高基于CNF的材料的机械性能和耐水性.
- 探索OCNF/CS薄膜作为环保包装材料的潜力.
主要方法:
- 氧化CNFs使用二化引入碳素基 (OCNFs).
- 通过离子相互作用和联结,制造OCNF/CS复合膜.
- 用氧化进行后处理,并添加糖醇作为增塑剂.
主要成果:
- 与原始的OCNF (≤20 MPa) 相比,OCNF/CS薄膜显示出显著增强的抗拉强度 (∼50 MPa).
- 膜在水中保持完整性24小时,胀率低 (≤200%对比≥900%的OCNF).
- 后处理将拉伸应力提高到80MPa,而糖提高了湿机械强度和性.
结论:
- 离子相互作用和OCNF和CS之间的键是改善性能的关键.
- 简单的后处理和塑化剂的加入提高了机械强度和耐水性.
- 灵活的,生物基的OCNF/CS薄膜的可扩展制造表明了环保包装的潜力.
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