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在3D打印中使用基于生物的Δ-瓦莱罗拉克3D打印的化学循环
Liang Yue1, Yong-Liang Su2, Mingzhe Li1
1The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Advanced materials (Deerfield Beach, Fla.)
|January 31, 2024
概括
这项研究引入了数字光处理 (DLP) 3D打印的可持续方法,使用来自生物可再生 δ-valerolactone 的可回收油墨. 开发的光前体能够回收高产量的单体,促进聚合物制造中的循环经济.
科学领域:
- 聚合物化学 聚合物化学
- 添加剂制造 添加剂制造 添加剂制造
- 可持续材料 可持续材料
背景情况:
- 数字光处理 (DLP) 是一个基于光聚合的关键3D打印技术.
- 对DLP材料的日益增长的需求和环境问题需要可持续的解决方案.
- 当前的DLP工艺往往缺乏有效的材料循环.
研究的目的:
- 开发一种可化学回收的油墨,用于DLP3D打印.
- 利用生物可再生原料来提高添加剂制造中的可持续性.
- 为了证明DLP材料的闭环系统的可行性.
主要方法:
- 由生物可再生的δ-瓦洛拉克 (VL) 合成的烯酸功能化多δ-瓦洛拉克 (PVLA).
- 通过将PVLA与可光固化反应稀释剂 (RDs) 结合起来,制定了一个DLP可打印的油墨.
- 通过热解研究印刷结构的脱聚合性和单体回收.
主要成果:
- 从印刷零件中获得93%的处女品质VL单体的回收率.
- 在热塑性和热性印刷聚合物中,PVLA 保持了其内在的脱聚合性.
- 通过对各种应用进行不同的研发和开发,证明了印刷材料性能的可调性.
结论:
- 提出可脱聚合的光前体作为循环DLP打印的可行策略.
- 强调了生物可再生VL作为可持续增材制造的多功能平台的潜力.
- 为DLP技术建立了一条通往闭环,可回收的油墨系统的道路.
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