设计可持续的可3D打印的多乳酸复合材料,具有高素含量
Zechun Ren1, Xinyuan Zhou1, Kejiao Ding1
1Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
International journal of biological macromolecules
|October 7, 2023
概括
研究人员开发了一种可持续的生物复合材料,使用50%的木质素和塑性聚乳酸 (PLA). 这种绿色材料为有价值的应用提供了出色的3D打印能力,增强了灵活性和性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续制造 可持续制造 可持续制造
背景情况:
- 生物质加工的一种副产品 - - 氨酸被不足利用.
- 聚乳酸 (PLA) 是一种可生物降解的聚合物,其灵活性和性有限.
- 增材制造需要具有特定机械和加工性能的材料.
研究的目的:
- 开发一种可持续的聚合物复合物,具有高素含量,用于增材制造.
- 为了提高聚乳酸 (PLA) 的机械性能和3D打印能力,使用素.
- 通过新型材料设计,探索对素的高附加值应用.
主要方法:
- 在塑性聚乳酸 (PLA) 中加入红素 (50%重量).
- 由此产生的生物复合材料的机械性能 (延长,性) 的表征.
- 对材料适合3D打印的评估和对素分散和分子流动性的分析.
主要成果:
- 该生物复合材料实现了50%重量%的红素含量,创造了一个可持续的材料.
- 长度 (765.54%) 和性 (125.27%) 显著增加.
- 增强的木质素分散性和PLA链的移动性导致了更好的灵活性,层粘附性和3D打印能力.
结论:
- 成功开发了一种具有出色的3D打印适应性的新型,可曲和可塑的绿色复合材料.
- 塑化剂有效地改善了木质素分散和PLA分子流动性,增强了机械性能.
- 这种木质素-PLA复合物显示出可持续制造和高价值木质素利用的巨大潜力.
相关概念视频
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


