通过零废物水解回收皮革废物,为多功能3D打印复合材料提供多功能3D打印复合材料
Giovanni Venturelli1, Luca Guida1, Marinella Levi1
1Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy.
Polymers
|September 13, 2025
概括
皮革废物通过零废物水解方法再循环成粉末填充剂. 这种填充剂增强了用于3D打印的复合材料,促进了时尚行业的可持续性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可持续性研究 可持续性研究
背景情况:
- 皮革行业产生大量的固体废物,经常被填埋或焚烧.
- 目前用于皮革废物回收的水解方法在中和过程中产生具有挑战性的盐副产品.
- 可持续的皮革废物的回收利用对于时尚行业的循环经济原则至关重要.
研究的目的:
- 开发一种零废弃物水解工艺,将皮革废物再循环转化为功能性填充剂.
- 创建多功能复合材料使用皮革水解剂,用于增材制造应用.
- 评估这些复合材料在3D打印技术中的性能.
主要方法:
- 使用与氧化中和的硫酸进行零废物水解过程.
- 复合材料是用聚乙烯-甘-二烯酸和甘二甲烯酸矩阵制造的,其含量高达20%的皮革水解粉末.
- 材料属性通过拉力和学测试进行评估,3D打印准确性得到评估.
主要成果:
- 皮革水解粉末的高产率达到了91.3%.
- 添加皮革水解填充剂显著提高了复合材料的抗拉强度.
- 复合材料表现出适合3D打印的粘弹性行为,并显示出有希望的打印精度.
结论:
- 通过可持续的水解方法,可以有效地将皮革废物利用成粉末填充剂.
- 由此产生的复合材料适用于直接墨水写作和光聚合3D打印.
- 这种升级循环方法通过重新利用皮革废物来促进时尚行业的可持续性和循环性.
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