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来自花生的纤维素废物的价值化,用于纳入可生物降解的多乳酸矩阵中

Alexandra Llidó Barragán¹, Alejandro de la Calle Salas¹, Francisco Parres García¹

¹Department of Mechanical and Materials Engineering, Universitat Politècnica de València (UPV), Plz. Ferrándiz y Carbonell, s/n, 03801 Alcoy, Spain.

|October 16, 2024

概括

研究人员使用桃粉开发出环保的多乳酸 (PLA) 生物复合材料. 这些可持续材料具有前途,在利用农业废物同时保持关键性质,为循环经济目标做出贡献.

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) 是一种可生物降解的聚合物,具有可持续应用的潜力.
农业废弃物,如桃粉,为复合材料的价值化提供了机会.
开发环保材料符合循环经济原则和环境可持续性目标.

研究的目的:

开发和描述含有绿色 (HV) 和煮熟 (HH) 桃粉的聚乳酸 (PLA) 生物复合材料.
评估不同度的花粉对PLA结构,机械和物理性能的影响.
评估这些生物复合材料作为商业PLA的可持续替代品的潜力.

主要方法:

通过挤出和注射制造PLA生物复合材料,其中含有1-20%的土豆粉.
综合性测试包括结构,机械 (Shore D硬度,抗拉强度,冲击强度,扬模量,破裂延伸,HTT) 和物理 (吸水) 分析.
福利埃变换红外光谱 (FTIR) 用于化学表征和扫描电子显微镜 (SEM) 用于形态分析.

主要成果:

使用花粉的PLA生物复合材料保持了与纯PLA相似的Shore D硬度,破裂时的延长和热偏移温度 (HDT),即使在高度的填充剂中也是如此.
随着添加桃粉,观察到拉伸强度,冲击强度和扬模量的减少.
在PLA/HV和PLA/HH生物复合材料中都注意到增加了吸水能力. FTIR证实了特征性峰值,而SEM显示了较低的界面粘附.

结论:

开发的PLA/桃粉生物复合材料显示出作为可持续材料的潜力,其某些特性与商业PLA相美.
该研究强调了农业废弃物 (菜废弃物) 的成功利用为功能生物复合材料.
这些发现有助于可持续材料技术和循环经济,支持2030年议程的环境目标.

关键词:

这就是为什么PLA PLA PLA.这是一种桃,桃.循环经济是一个循环经济.重估是指重新估值.

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