可持续3D打印透明SiO2玻璃组件的光固化水性悬浮液设计

IF 7.3 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Bohua Ma, Tsukaho Yahagi, Junichi Tatami and Motoyuki Iijima*, 
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引用次数: 0

摘要

三维(3D)打印透明SiO2玻璃组件按需几何形状近年来取得了进展。然而,大多数印刷系统是不可持续的,因为它们需要大量的有机溶剂和长时间的热处理。在这里,我们提出了一种新的水悬浮液概念,可以通过使用有限数量的单体在颗粒表面生长的聚合物层的叠加来光固化。简而言之,SiO2颗粒在反应性聚乙烯亚胺的帮助下分散在水介质中。然后,将少量水溶性4-羟丙烯酸丁酯与光自由基引发剂混合。对设计的悬浮液进行紫外照射,在SiO2颗粒上形成聚合丙烯酸酯壳层,生成的聚合物壳在颗粒间通过叠加形成交联。我们证明了所设计的悬浮液可以用于还原光聚合来打印3D结构。此外,含有水的打印体在外力作用下进一步变形,从而产生复杂的形状。由于在该系统中使用的单体数量减少,光固化体是可降解的,并通过快速加热型材烧结成透明玻璃,而不会发生任何裂纹。我们相信我们提出的工艺为3D结构玻璃材料的可持续制造提供了新的机会。新型水性光固化悬浮液,用于3D打印透明硅玻璃材料,大大减少了烧制时间。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sustainable 3D Printing of Transparent SiO2 Glass Components by a Photocurable Aqueous Suspension Design

Three-dimensional (3D) printing of transparent SiO2 glass components with on-demand geometries has progressed in recent years. However, most printing systems are unsustainable as they require large amounts of organic solvents and long heat treatments. Here, we propose a new concept of aqueous suspension that can be photocured by the superimposition of a polymer layer grown on the particle surface using limited amounts of monomers. In brief, SiO2 particles were dispersed in aqueous media with an aid of reactive polyethylenimine. Then, a small amount of water-soluble 4-hydroxybutyl acrylate and photoradical initiator were mixed. UV irradiation to the designed suspension resulted in the formation of polymerized acrylate shell layer on SiO2 particles and interparticle cross-linking by superimposition of the generated polymer shell. We demonstrated that the designed suspension can be employed for vat photopolymerization to print 3D structures. Additionally, water-containing printed bodies were further deformable by external forces to generate complex shapes. Owing to the reduced amounts of monomers used in this system, the photocured bodies were debindable and sintered into transparent glass through rapid heating profiles without occurring any cracks. We believe our proposed process provides a new opportunity for sustainable manufacturing of 3D structured glass materials.

New aqueous based photocurable suspension for 3D printing of transparent silica glass materials with significantly reduced firing time.

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来源期刊
ACS Sustainable Chemistry & Engineering
ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL
CiteScore
13.80
自引率
4.80%
发文量
1470
审稿时长
1.7 months
期刊介绍: ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.
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