硅藻土光固化成型浆料和多孔陶瓷的制备

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (4): 1416-1422.

硅藻土光固化成型浆料和多孔陶瓷的制备

王卿, 鲍崇高, 李世佳, 董文彩, 马海强

西安交通大学国家金属强度重点实验室,西安 710049

收稿日期:2021-12-07 修回日期:2022-01-16 出版日期:2022-04-15 发布日期:2022-04-27
通讯作者: 鲍崇高,博士,教授。E-mail:cgbao@mail.xjtu.edu.cn
作者简介:王卿(1997—),女,硕士研究生。主要从事陶瓷光固化成型的研究。E-mail:wq0928@stu.xjtu.edu.cn
基金资助:
国家自然科学基金(52075425)

Fabrication of Diatomite Slurries and Diatomite Porous Ceramics Based on Stereo Lithography Apparatus

WANG Qing, BAO Chonggao, LI Shijia, DONG Wencai, MA Haiqiang

State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China

Received:2021-12-07 Revised:2022-01-16 Online:2022-04-15 Published:2022-04-27

摘要/Abstract

摘要： 本文成功开发了用于光固化成型的树脂基硅藻土浆料,系统探讨了分散剂种类、含量及固含量对硅藻土浆料流变特性的影响,并对其作用机理进行了分析,获得了用于光固化成型的高固含量、低黏度的硅藻土浆料,并采用3D陶瓷光固化设备制备了结构复杂的硅藻土多孔陶瓷。结果表明,BYK2009为硅藻土浆料的最佳分散剂,且当分散剂相对粉体质量为3%时,浆料黏度最低。成功制备出粉体体积分数为40%的硅藻土浆料,在剪切速率为30 s^-1时,硅藻土浆料黏度为17.30 Pa·s。在900 ℃烧结时得到显气孔率为51.30%、抗弯强度为(46.28±2.63) MPa的硅藻土多孔陶瓷。本研究为光固化成型具有复杂多级孔结构的硅藻土载体提供了参考。

关键词: 树脂基硅藻土浆料, 硅藻土多孔陶瓷, 分散剂, 流变行为, 光固化成型, 抗弯强度

Abstract: In this paper, the resin-based diatomite slurries for stereo lithography apparatus were successfully developed. The effects of dispersant types, content and solid content on the rheological properties of diatomite slurries were systematically discussed, and the mechanism of dispersant was analyzed. The diatomite slurries with high solid content and low viscosity for stereo lithography apparatus were obtained, and diatomite porous ceramics with complex structure were prepared by 3D ceramic stereo lithography equipment. Results show that BYK2009 is the best dispersant for diatomite slurries, and the viscosity is the lowest when the dispersant is 3% relative to the powder mass. Diatomite slurries with 40% (volume fraction) powder are prepared, and the viscosity of diatomite slurry is 17.30 Pa·s at the shear rate of 30 s^-1. Diatomite porous ceramics sintered at 900 ℃ have apparent porosity of 51.30% and bending strength of (46.28±2.63) MPa. This study provides a reference for preparing diatomite carriers with complex porous structure based on stereo lithography apparatus.

Key words: resin-based diatomite slurry, diatomite porous ceramics, dispersant, rheological behavior, stereo lithography apparatus, bending strength

中图分类号:

TQ174

王卿, 鲍崇高, 李世佳, 董文彩, 马海强. 硅藻土光固化成型浆料和多孔陶瓷的制备[J]. 硅酸盐通报, 2022, 41(4): 1416-1422.

WANG Qing, BAO Chonggao, LI Shijia, DONG Wencai, MA Haiqiang. Fabrication of Diatomite Slurries and Diatomite Porous Ceramics Based on Stereo Lithography Apparatus[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(4): 1416-1422.

参考文献

[1] 杨浩文,高文元.我国硅藻土的应用现状及展望[J].中国陶瓷工业,2013,20(3):18-20.
YANG H W, GAO W Y. Application status and prospects of diatomite in China[J]. China Ceramic Industry, 2013, 20(3): 18-20 (in Chinese).
[2] 胡涛,马永梅,王驰.硅藻土的应用研究进展[J].中国非金属矿工业导刊,2009(1):16-18+25.
HU T, MA Y M, WANG C. Research progress of the application of diatomite[J]. China Non-Metallic Minerals Industry Herald, 2009(1): 16-18+25 (in Chinese).
[3] YUAN C J, LI M, WANG M, et al. Sensitive development of latent fingerprints using Rhodamine B-diatomaceous earth composites and principle of efficient image enhancement behind their fluorescence characteristics[J]. Chemical Engineering Journal, 2020, 383: 123076.
[4] ZHANG G X, SUN Z M, DUAN Y W, et al. Synthesis of nano-TiO₂/diatomite composite and its photocatalytic degradation of gaseous formaldehyde[J]. Applied Surface Science, 2017, 412: 105-112.
[5] 胡洪亮,高皓月.硅藻土基光催化复合材料研究进展[J].应用化工,2021,50(7):2002-2007.
HU H L, GAO H Y. Research progress of diatomaceous earth based photocatalytic composites[J]. Applied Chemical Industry, 2021, 50(7): 2002-2007 (in Chinese).
[6] MEI H, HUANG W Z, LIU H X, et al. 3D printed carbon-ceramic structures for enhancing photocatalytic properties[J]. Ceramics International, 2019, 45(12): 15223-15229.
[7] LEFEVERE J, GYSEN M, MULLENS S, et al. The benefit of design of support architectures for zeolite coated structured catalysts for methanol-to-olefin conversion[J]. Catalysis Today, 2013, 216: 18-23.
[8] ZOCCA A, COLOMBO P, GOMES C M, et al. Additive manufacturing of ceramics: issues, potentialities, and opportunities[J]. Journal of the American Ceramic Society, 2015, 98(7): 1983-2001.
[9] DONG W C, MA H Q, LIU R Z, et al. Fabrication by stereolithography of fiber-reinforced fused silica composites with reduced crack and improved mechanical properties[J]. Ceramics International, 2021, 47(17): 24121-24129.
[10] 胡波,高宗强,鲍崇高.硅酸钙/β-磷酸三钙生物陶瓷的光固化成型工艺及性能研究[J].硅酸盐通报,2020,39(9):2950-2955.
HU B, GAO Z Q, BAO C G. Preparation and properties of calcium silicate/β-tricalcium phosphate bioceramic by stereolithography[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(9): 2950-2955 (in Chinese).
[11] LICCIULLI A, CORCIONE C E, GRECO A, et al. Laser stereolithography of ZrO₂ toughened Al₂O₃[J]. Journal of the European Ceramic Society, 2005, 25(9): 1581-1589.
[12] HINCZEWSKI C, CORBEL S, CHARTIER T. Ceramic suspensions suitable for stereolithography[J]. Journal of the European Ceramic Society, 1998, 18(6): 583-590.
[13] ZHANG S, SHA N, ZHAO Z. Surface modification of α-Al₂O₃ with dicarboxylic acids for the preparation of UV-curable ceramic suspensions[J]. Journal of the European Ceramic Society, 2017, 37(4): 1607-1616.
[14] KIM J H, CHANG W S, KIM D, et al. 3D printing of reduced graphene oxide nanowires[J]. Advanced Materials (Deerfield Beach, Fla), 2015, 27(1): 157-161.
[15] CHEN Z W, LI J J, LIU C B, et al. Preparation of high solid loading and low viscosity ceramic slurries for photopolymerization-based 3D printing[J]. Ceramics International, 2019, 45(9): 11549-11557.
[16] ZHANG K Q, XIE C, WANG G, et al. High solid loading, low viscosity photosensitive Al₂O₃ slurry for stereolithography based additive manufacturing[J]. Ceramics International, 2019, 45(1): 203-208.
[17] GRIFFITH M L, HALLORAN J W. Freeform fabrication of ceramics via stereolithography[J]. Journal of the American Ceramic Society, 2005, 79(10): 2601-2608.