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Concepción Delgado-Orti¹, Francisco J Navas-Martos², Jose A Rodríguez-Liébana²

¹Department of Chemical, Environmental and Materials Engineering, Campus Las Lagunillas, University of Jaén, 23071 Jaén, Spain.

|July 27, 2024

概括

富含纤维素的纸业废物被纳入聚乳酸 (PLA) 生物复合材料中. 这种可持续的方法提高了拉伸性能,但降低了冲击强度,提供了新的材料可能性.

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
可持续材料可持续材料

背景情况:

聚乳酸 (PLA) 是一种普遍存在的生物基聚合物.
工业废物流的利用对循环经济原则至关重要.
富含纤维素的废物材料为复合材料增强提供了机会.

研究的目的:

研究将造纸业废物纳入PLA生物复合材料的可行性.
评估不同废物含量对材料性能的影响.
探索复合材料制造的可持续替代方案.

主要方法:

生物复合材料样本 (0-25重量%的废物) 使用挤出和注塑来制备.
进行了机械测试 (拉力,冲击).
差分扫描热量测量 (DSC),里叶变换红外光谱 (FT-IR),X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 被用于材料表征.

主要成果:

拉伸性能随着废物含量增加而得到改善,而冲击强度则降低.
融化温度下降,结晶度增加,正如DSC所示.
吸水量与废物含量成比例增加,由FT-IR和XRD证实.
SEM分析表明,纤维素废弃物增强剂和PLA矩阵之间存在良好的凝聚力.

结论:

纸业废弃物可以有效地作为PLA生物复合材料的强化物进行整合.
开发的生物复合材料为可持续的应用提供了潜力.
这项研究为在复合材料制造中利用工业副产品开辟了新的途径.

关键词:

基于生物的生物基础.生物复合物生物复合物纤维素纤维素的使用方法多乳酸多乳酸是什么意思废纸废纸是一种废纸.

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