环氧树脂含量对激光选区烧结制备多孔煤系高岭土陶瓷性能的影响

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (6): 1950-1956.

环氧树脂含量对激光选区烧结制备多孔煤系高岭土陶瓷性能的影响

何逸宁^1,2, 戴高尚², 吴甲民^1,2,3, 张洁², 潘明珠², 陈敬炎², 陈颖^2,4, 王永均¹, 张红星¹

1.安徽金岩高岭土科技有限公司,淮北 235000;
2.华中科技大学材料科学与工程学院,材料成形与模具技术国家重点实验室,武汉 430074;
3.增材制造陶瓷材料教育部工程研究中心,武汉 430074;
4.深圳华中科技大学研究院,深圳 518000

收稿日期:2021-03-31 修回日期:2021-05-14 出版日期:2021-06-15 发布日期:2021-07-08
通讯作者: 吴甲民,博士,副教授。E-mail:jiaminwu@hust.edu.cn。陈颖,博士,讲师。E-mail:chen_ying@hust.edu.cn
作者简介:何逸宁(2000—),男。主要从事陶瓷3D打印方面的研究。E-mail:1876162313@qq.com
基金资助:
中央高校基本科研业务费专项资金(2018KFYYXJJ030,2019kfyXMPY020,2020kfyFPZX003);深圳科技计划基础研究(自由探索)项目(JCYJ20170818165618008)

Effect of Epoxy Resin Content on Properties of Porous Coal Series Kaolin Ceramics Prepared by Selective Laser Sintering

HE Yining^1,2, DAI Gaoshang², WU Jiamin^1,2,3, ZHANG Jie², PAN Mingzhu², CHEN Jingyan², CHEN Ying^2,4, WANG Yongjun¹, ZHANG Hongxing¹

1. Anhui Golden Rock Kaolin Technology Co., Ltd, Huaibei 235000, China;
2. State Key Laboratory of Materials Processing and Die & MouldTechnology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
3. Engineering Research Center of Ceramic Materials for Additive Manufacturing, Ministry of Education, Wuhan 430074, China;
4. Research Institute of Huazhong University of Science and Technology in Shenzhen, Shenzhen 518000, China

Received:2021-03-31 Revised:2021-05-14 Online:2021-06-15 Published:2021-07-08

摘要/Abstract

摘要： 目前,我国对煤系高岭土资源的整体深加工技术水平较低,导致了资源浪费和环境污染。本文分别以煅烧煤系高岭土和环氧树脂为原料和粘结剂,利用激光选区烧结工艺制备多孔煤系高岭土陶瓷,研究了环氧树脂含量对多孔煤系高岭土陶瓷性能的影响。研究表明,制备的多孔煤系高岭土陶瓷主要物相为莫来石和方石英,其孔隙分布均匀。随着环氧树脂质量分数从10%增大到25%,多孔煤系高岭土陶瓷素坯的抗弯强度由0.17 MPa增大到0.32 MPa,多孔煤系高岭土陶瓷的抗弯强度由2.81 MPa减小到0.82 MPa,其气孔率由50.37%增大到59.69%。以煤系高岭土为原料,采用激光选区烧结工艺制备多孔陶瓷对煤系高岭土资源的开发利用具有较为重要的意义。

关键词: 激光选区烧结, 煤系高岭土, 多孔陶瓷, 显微形貌, 力学性能

Abstract: At present, the low level of kaolin resources deep processing technology in China leads to the resources waste and environmental pollution. In this paper, epoxy resin and coal series kaolin powder were used as the binder and raw materials, respectively, and porous coal series kaolin ceramics were prepared by selective laser sintering (SLS). The effect of epoxy resin content on the properties of porous coal series kaolin ceramics were investigated. The results show that the main phases of porous coal series kaolin ceramicswith evenly distributed pores are mullite and cristobalite. With a increase of epoxy resin mass content from 10% to 25%, it is found that the bending strength of porous coal series kaolin ceramic green parts increases continuously from 0.17 MPa to 0.32 MPa, the bending strength of porous coal series kaolin ceramics decreases from 2.81 MPa to 0.82 MPa, and the porosity increases from 50.37% to 59.69%. The preparation of porous ceramics from coal series kaolin by SLS is of great significance to the development and utilization of coal series kaolin resources.

Key words: selective laser sintering, coal series kaolin, porous ceramics, microscopic morphology, mechanical property

中图分类号:

TB321

何逸宁, 戴高尚, 吴甲民, 张洁, 潘明珠, 陈敬炎, 陈颖, 王永均, 张红星. 环氧树脂含量对激光选区烧结制备多孔煤系高岭土陶瓷性能的影响[J]. 硅酸盐通报, 2021, 40(6): 1950-1956.

HE Yining, DAI Gaoshang, WU Jiamin, ZHANG Jie, PAN Mingzhu, CHEN Jingyan, CHEN Ying, WANG Yongjun, ZHANG Hongxing. Effect of Epoxy Resin Content on Properties of Porous Coal Series Kaolin Ceramics Prepared by Selective Laser Sintering[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(6): 1950-1956.

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