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机械坚固,绝热可持续泡完全来自竹纤维,通过高温干燥
Xin Li1, Tuhua Zhong2, Yunyan Xiao3
1College of Furnishings and Industrial Design and Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Centre for Bamboo and Rattan, Beijing 100102, China.
Carbohydrate polymers
|March 17, 2024
概括
使用高温干燥和高固体纤维化纤维素 (HSFC) 粘合剂开发出机械强大的竹纤维泡. 这些可持续泡为包装和绝缘应用提供了出色的机械强度和绝热.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续材料 可持续材料
- 生物材料是一种生物材料.
背景情况:
- 基纤维素泡提供可持续和可生物降解的替代品,但通常由于机械性能差和制备效率低而受到损害.
- 提高这些泡的机械强度和热绝缘对于更广泛的应用至关重要.
研究的目的:
- 研究竹纤维特性和高固体纤维化纤维素 (HSFC) 添加对纤维素泡的形成,机械和热绝缘性能的影响.
- 开发机械坚固和隔热的竹子衍生的泡.
主要方法:
- 纤维素泡的构造使用竹子来源的含素的纸纤维 (LPF) 或蒸汽爆炸纤维 (SEF) 作为骨架,HSFC作为粘合剂.
- 用于泡制备的高温干燥方法.
- 评估机械性能 (应力在10%应变时,压力模量,能量吸收) 和隔热性能 (导热率).
主要成果:
- 与没有HSFC的LPF泡相比,HSFC的结合显著提高了机械性能,应力在10%的应变和压缩模量分别增加了10倍和44倍.
- 开发的LPF/HSFC泡表现出优异的能量吸收 (170kJ/m3在40%应变) 和良好的隔热 (0.054W/m·K)).
- 与SEF/HSFC泡相比,LPF/HSFC泡表现出更均的细胞结构和更高的性能.
结论:
- 基于竹纤维的泡,特别是LPF/HSFC,在需要机械强度和隔热的应用中显示出显著的前景.
- 开发的泡为保护性包装和隔热提供了可持续和高性能的替代品.
- 这项研究强调了HSFC作为一种绑定剂的有效性,用于改善基纤维素泡的性能.
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