陶瓷光固化3D打印用光敏树脂浆料设计与性能

牛书鑫, 王珂, 周玉珑, 郭新龙, 胡小健, 许西庆

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塑料科技 ›› 2024, Vol. 52 ›› Issue (06) : 1-5. DOI: 10.15925/j.cnki.issn1005-3360.2024.06.001
理论与研究

陶瓷光固化3D打印用光敏树脂浆料设计与性能

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Design and Property of Photosensitive Resin Slurry for UV-Curing 3D Printing of Ceramics

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History +

摘要

光固化3D打印技术在复杂陶瓷构件的制备中表现出很好的应用前景,低聚物的选择会直接影响液态光敏树脂的打印性能,对3D打印陶瓷材料的结构与性能具有重要影响。为优化陶瓷光固化3D打印用光敏树脂浆料的性能,文章分别以环氧丙烯酸酯(EA)、聚氨酯丙烯酸酯(PUA)、有机硅改性聚氨酯丙烯酸酯(PSUA)作为低聚物配制了光敏树脂预混液和3D打印陶瓷浆料,探究了低聚物种类对光敏树脂及陶瓷浆料打印性能的影响。结果表明:PUA制备的光敏树脂浆料具有最优的光固化性能,其黏度为143 mPa·s,固化厚度为341 μm,抗弯强度为33.76 MPa,且PUA具有最低的临界曝光量20.022 mJ/cm²,表明其最易固化,适合陶瓷材料的3D打印成型。采用PUA制备的光敏树脂浆料制备了氧化硅陶瓷浆料,能够打印出结构复杂的陶瓷试样,陶瓷试样微观结构较为均匀,能够有效弱化层间缝隙,打印效果良好。

Abstract

UV-curing 3D printing has shown great application prospects in the preparation of complex ceramic components. The selection of oligomers directly affects the printing performance of liquid photosensitive resins, which has an important impact on the structure and properties of 3D printed ceramic materials. To optimize the performance of photosensitive resin slurry for ceramic photopolymerization 3D printing, this study prepared photoresin premix solutions and 3D printing ceramic slurries using oligomers such as epoxy acrylate (EA), polyurethane acrylate (PUA), and organosilicon-modified polyurethane acrylate (PSUA). The influence of oligomer types on the printing performance of photoresin and ceramic slurry was investigated.The results showed that the photoresin slurry prepared from PUA demonstrated the optimal photocuring properties, with a viscosity of 143 mPa·s, a curing thickness of 341 μm, and a flexural strength of 33.76 MPa. Furthermore, PUA exhibited the lowest critical exposure dose of 20.022 mJ/cm², indicating the highest susceptibility to curing, making it suitable for the 3D printing of ceramic materials. Photosensitive resin slurry formulated with PUA was utilized to fabricate silica ceramic slurry, enabling the printing of complex-structured ceramic specimens. The microstructure of the ceramic specimens was relatively uniform, effectively reducing interlayer gaps, and the printing outcome was satisfactory.

关键词

3D打印 / 光敏树脂 / 低聚物 / 固化性能 / 氧化硅陶瓷

Key words

3D printing / Photosensitive resin / Oligomer / Curing performance / Silica ceramics

中图分类号

TQ174.5

引用本文

导出引用
牛书鑫 , 王珂 , 周玉珑 , . 陶瓷光固化3D打印用光敏树脂浆料设计与性能. 塑料科技. 2024, 52(06): 1-5 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.06.001
NIU Shu-xin, WANG Ke, ZHOU Yu-long, et al. Design and Property of Photosensitive Resin Slurry for UV-Curing 3D Printing of Ceramics[J]. Plastics Science and Technology. 2024, 52(06): 1-5 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.06.001

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基金

国家自然科学基金(52102062)
西安市科技计划项目(23LLRH0004)

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