用乳水性微分散制备的纤维素和酸盐增强的天然膜
Naipaporn Sutipanwihan1, Veerapat Kitsawat1, Praewpakun Sintharm1
1Bio-Circular-Green economy Technology & Engineering Center, BCGeTEC, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Polymers
|September 28, 2024
概括
开发了由天然,纤维素和奇托制成的绿色复合膜. 这些增强的薄膜显示了改善的机械强度,化学耐药性和抗微生物特性,用于可持续的包装应用.
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:
- 基于天然 (NR) 的薄膜通常需要用于更广泛的应用.
- 纤维素 (CE) 和酸盐 (CS) 是生物相容的天然聚合物,具有复合材料增强的潜力.
- 开发可持续和高性能材料对于减少环境影响至关重要.
研究的目的:
- 使用天然,纤维素和奇托制造和特征绿色复合膜.
- 研究纤维素和奇托不同分子量对NR复合膜的机械,化学和抗菌性能的影响.
- 探索这些复合膜在可持续绿色包装方面的潜力.
主要方法:
- 通过乳水性微分散方法制造复合薄膜,使用NR,CE和奇托 (低分子量和中分子量) 的不同比例.
- 使用富里埃变换红外光谱法 (FTIR) 进行表征,以确认化学相互作用.
- 评估机械性能,包括抗拉强度,模和断裂时的延长.
- 对抗微生物活性和对非极性溶剂的化学耐药性的评估.
主要成果:
- FTIR证实了复合膜中纤维素和酸盐之间强烈的结相互作用.
- 在CE和CS增强时,观察到拉伸强度和扬模块的显著增加.
- 最大拉伸强度 (13.8 MPa) 和扬模量 (12.7 MPa) 达到10重%的CE和10重%的CS-L.
- 高延长度 (500-526%) 获得10重%CE和5.0重%CS (CS-L或CS-M).
- 证明了增强的抗微生物活性和对非极性溶剂的改善化学耐药性.
结论:
- 绿色复合膜的NR,CE和CS显著改善了机械,化学和抗菌性能.
- 开发的复合膜显示了作为可持续绿色包装的灵活材料的前景.
- 简单且经济高效的制造方法使这些材料适用于工业应用.
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