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从废物到储能:使用从废纸中提取的纤维素制造稳定形状相变复合材料

Sahel Saberi¹, Golnoosh Abdeali^2,3, Ahmad Reza Bahramian¹

¹Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University P. O. Box 14115-143 Tehran Iran abahramian@modares.ac.ir.

|April 3, 2025

概括

研究人员使用回收的报纸纤维素和聚乙烯甘醇 (PEG) 开发了一种可持续的复合材料,以改善能量储存. 这种新型材料提高了导热性,减少了泄漏,为高效的相变材料 (PCM) 铺平了道路.

科学领域:

材料科学材料科学材料科学
可持续能源可持续能源
化学工程是化学工程的重要组成部分.

背景情况:

有机相变材料 (PCM) 提供高能量储存,但热导率低,泄漏.
开发稳定高效的PCM对于推进可持续能源解决方案至关重要.
可回收,基于自然的材料提供了一个克服当前限制的机会.

研究的目的:

使用废报纸的纤维素和聚乙烯糖醇 (PEG) 来制造稳定形状的相变复合物 (PCC).
通过一种新的复合结构来增强有机PCM的热性能并减少其泄漏.
为了研究纤维素水凝与酸交叉连接,并用一丝碳增强的潜力.

主要方法:

从废报纸 (WP) 提取纤维素,通过性和过氧化处理.
使用酸 (CA) 作为交叉链接器合成3D纤维素水凝网络.
将聚乙烯糖醇 (PEG 2000) 封装到纤维素水凝基质中,并用碳单丝纤维 (CF) 增强.
对生成的相变复合材料 (PCC) 的热物理性质的描述和形态分析.

主要成果:

一种基于纤维素水凝的复合物 (PCC) 成功合成,证明了纤维素和CA之间的化.
(细胞-4/CF/PEG) PCC在5个循环后显示出4.25%的低泄漏率.
储能容量增加了25%,潜在热量与纯PEG 2000相似.
碳单丝纤维 (CFs) 将导热率提高了80%,实现了90%的热效率.

结论:

开发的基于纤维素的PCC有效地稳定了有机PCM,大大减少了泄漏.
结合CF可以显著提高导热率和储能性能.
这种方法为能源应用中的相变材料提供了可持续和高效的解决方案.

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