当前位置: X-MOL 学术Green Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Sustainable advances in SLA/DLP 3D printing materials and processes
Green Chemistry ( IF 9.8 ) Pub Date : 2021-09-10 , DOI: 10.1039/d1gc01489g
Erin M. Maines 1 , Mayuri K. Porwal 1 , Christopher J. Ellison 1 , Theresa M. Reineke 2
Affiliation  

3D printing is an essential tool for rapid prototyping in a variety of sectors such as automotive and public health. The 3D printing market is booming, and it is projected that it will continue to thrive in the coming years. Unfortunately, this rapid growth has led to an alarming increase in the amount of 3D printed plastic waste. 3D printing processes such as stereolithography (SLA) and digital light projection (DLP) in particular generally produce petroleum-based thermosets that are further worsening the plastic pollution problem. To mitigate this 3D printed plastic waste, sustainable alternatives to current 3D printing materials must be developed. The present review provides a comprehensive overview of the sustainable advances in SLA/DLP 3D printing to date and offers a perspective on future directions to improve sustainability in this field. The entire life cycle of 3D printed parts has been assessed by considering the feedstock selection and the end-of-use of the material. The feedstock selection section details how renewable feedstocks (from lignocellulosic biomass, oils, and animal products) or waste feedstocks (e.g., waste cooking oil) have been used to develop SLA/DLP resins. The end-of-use section describes how materials can be reprocessed (e.g. thermoplastic materials or covalent adaptable networks) or degraded (through enzymatic or acid/base hydrolysis of sensitive linkages) after end-of-use. In addition, studies that have employed green chemistry principles in their resin synthesis and/or have shown their sustainable 3D printed parts to have mechanical properties comparable to commercial materials have been highlighted. This review also investigates how aspects of sustainability such as recycling for feedstock/end-of-use or biodegradation of 3D printed parts in natural environments can be incorporated as future research directions in SLA/DLP.

中文翻译:

SLA/DLP 3D 打印材料和工艺的可持续发展

3D 打印是汽车和公共卫生等各个领域快速原型制作的重要工具。3D 打印市场正在蓬勃发展,预计未来几年它将继续蓬勃发展。不幸的是,这种快速增长导致 3D 打印塑料废物的数量惊人地增加。特别是立体光刻 (SLA) 和数字光投影 (DLP) 等 3D 打印工艺通常会产生石油基热固性塑料,这进一步加剧了塑料污染问题。为了减少这种 3D 打印塑料废物,必须开发当前 3D 打印材料的可持续替代品。本综述全面概述了迄今为止 SLA/DLP 3D 打印的可持续发展,并提供了对提高该领域可持续性的未来方向的看法。3D 打印部件的整个生命周期已通过考虑原料选择和材料的最终使用进行评估。原料选择部分详细介绍了可再生原料(来自木质纤维素生物质、油和动物产品)或废物原料(例如,废食用油)已被用于开发 SLA/DLP 树脂。使用结束部分描述了材料在使用结束后如何进行再加工(例如热塑性材料或共价适应性网络)或降解(通过敏感连接的酶促或酸/碱水解)。此外,在树脂合成中采用绿色化学原理和/或显示其可持续 3D 打印部件具有与商业材料相当的机械性能的研究已得到强调。本综述还调查了可持续性的各个方面,例如原料回收/使用结束或自然环境中 3D 打印部件的生物降解,如何可以作为 SLA/DLP 的未来研究方向。
更新日期:2021-09-10
down
wechat
bug