纤维素纤维丝作为可持续的包装材料:通过阴阳性粉和基基二聚合物增强屏障特性
Lahbib Abenghal1, Julien Bley2, Balazs Tolnai3
1Institut d'Innovations en Écomatériaux, Écoproduits et Écoénergies, Université du Québec à Trois-Rivières, 3351 boul. des Forges, C.P. 500, Trois-Rivières, QC G9A 5H7, Canada.
International journal of biological macromolecules
|August 2, 2025
概括
研究人员从纤维素丝 (CFs) 开发了环保包装薄膜. 这些可生物降解的薄膜具有出色的屏障和机械性能,是塑料包装的可持续替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续的高分子.
- 生物材料是一种生物材料.
背景情况:
- 在全球范围内,一次性塑料包装带来了重大环境挑战.
- 传统的基于纤维素的薄膜生产 (使用微纤维/纳米晶纤维素) 需要昂贵且污染的化学处理.
- 需要可持续,经济高效,环保的包装替代品.
研究的目的:
- 研究通过机械处理生产的纤维素丝 (CFs) 的潜力,以制造可生物降解的包装薄膜.
- 评估酸粉 (CS) 和基二聚 (AKD) 作为添加剂对薄膜性能的影响.
- 评估开发的基于CF的薄膜的形态,屏障,机械和光学特性.
主要方法:
- 纤维素纤维丝 (CFs) 用纯机械纤维化工艺制备.
- 包装薄膜是使用手工板成型方法生产的,CFs是主要材料.
- 添加了添加剂,包括酸粉 (CS) 和基二聚 (AKD),以提高片的性能.
- 使用SEM,WVTR,WVP,OTR,接触角度,Cobb 60,爆破指数,拉伸指数,撕裂指数和透射率等技术分析了膜的性能.
主要成果:
- 开发的薄膜表现出明显改善的屏障特性:水蒸气传导率 (WVTR) 为49.42g/m2·day,水蒸气透率 (WVP) 为2.82 × 10−6 g·m/m2·day·Pa,氧传导率 (OTR) 为3.3cc/m2·day,以及Cobb值为32.2g/m2.
- 使用3%CS的薄膜表现出强大的机械性能,拉力指数为80.49N·m/g,破裂指数为10.93kPa·m2/g,撕裂指数为0.66 mN·m2/g.
- 形态和光学分析证实了膜形成能力和结构完整性.
结论:
- 纤维素纤维丝 (CFs),当与CS和AKD相结合时,在生产具有优良屏障和机械性能的可生物降解包装薄膜方面是有效的.
- 基于CF的薄膜是传统生物聚合物和石油基塑料的有前途,环保和经济高效的替代品.
- 简单,可扩展和对环境无害的生产方法凸显了CFs在可持续包装解决方案中的巨大潜力.
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