膜科学与技术

添加剂对粉煤灰基陶瓷膜支撑体性能的影响

作者：李苗雨，郭雅妮，同帜，詹辉，崔双科，刘璐

单位： 1.西安工程大学环境与化学工程学院，西安 710048；2.陕西省现代设计研究院有限公司，西安 710048

关键词：造孔剂、烧结助剂、陶瓷膜支撑体、粉煤灰

出版年,卷(期):页码： 2023,43(3):94-103

摘要：

以粉煤灰为骨料，羧甲基纤维素（CMC）为黏结剂，分别选取聚甲基丙烯酸甲酯（PMMA）、CaCO3、木炭粉为造孔剂，TiO2、CaO、硼砂为烧结助剂，采用挤压成型法与固态粒子烧结法制备粉煤灰基陶瓷膜支撑体。考察造孔剂与烧结助剂的种类、添加量对粉煤灰基陶瓷膜支撑体性能的影响，并对膜的纯水通量、抗折强度、微观形貌、物质组成、孔隙率和酸碱腐蚀率等性能进行表征。结果表明：木炭粉为造孔剂，TiO2为烧结助剂时，所制得的粉煤灰基陶瓷膜支撑体性能兼具良好的机械性能与透水性能。木炭粉最佳添加量为15%（质量分数），此时支撑体平均孔径为2.78μm，孔隙率为44.68%，纯水通量为3280.04L/(m2·h·MPa)，抗折强度为24.02MPa，酸、碱腐蚀率分别为0.25%和0.22%。TiO2最佳添加量为4%（质量分数），此时支撑体平均孔径为1.97μm，孔隙率为44.95%，纯水通量为3303.76L/(m2·h·MPa)，抗折强度为35.84MPa，其酸、碱腐蚀率分别为0.32%和0.17%。

In this paper, to explore the influence of poreforming agents and sintering additives on the performance of the support body, fly ash was used as aggregate, carboxymethyl cellulose (CMC) as binder, polymethyl methacrylate (PMMA), CaCO3 and charcoal powder were selected as poreforming agents, TiO2, CaO and borax were used as sintering additives. Fly ash - based ceramic membrane supports were prepared by extrusion molding and sintering of solid particles at atmospheric pressure. Pure water flux, flexural strength, microstructure, material composition, porosity and acid-base corrosion rate were characterized. The results show that when the pore-forming agent and sintering auxiliaries are charcoal powder and TiO2, the properties of the fly ash-based ceramic membrane support body are better, which is helpful to the preparation of low-cost ceramic membrane. When the amount of charcoal powder is 15 wt%, the average pore size of the support body is 2.78 μm, the porosity is 44.68 %, and the acid and alkali corrosion rates are 0.25% and 0.22%, respectively. When the TiO2 addition amount is 4 wt%, the average pore size of the support body is 1.97 μm, the porosity is 44.95%, and the acid and alkali corrosion rates are 0.32% and 0.17%, respectively.

李苗雨（1998-），女，陕西渭南人，硕士研究生，主要从事无机陶瓷膜研究。

参考文献：

[1] 王福家. 现代城市水污染处理的一般途径分析[J]. 资源节约与环保, 2018(11): 62.
[2] 宋丽. 环境保护中水污染处理技术和再生利用[J]. 山西化工, 2021, 41(2): 202-204.
[3] 朱加良, 孙奥博, 高志丰. 膜分离技术特点分析及应用[J]. 电站系统工程, 2020, 36(3): 73-74.
[4] Ghumra D P, Agarkoti C, Gogate P R. Improvements in effluent treatment technologies in common effluent treatment plants (CETPs): Review and recent advances[J]. Process Safety and Environmental Protection, 2021, 147: 1018-1051.
[5] 赵冰, 王军, 田蒙奎. 我国膜分离技术及产业发展现状[J]. 现代化工, 2021, 41(2): 6-10.
[6] Liang B, He X, Hou J, et al. Membrane separation in organic liquid: Technologies, achievements, and opportunities[J]. Advanced Materials, 2019, 31(45);1-14.
[7] 龚之宝, 孙伟振, 李朋洲, 等. 无机膜分离技术及其研究进展[J]. 应用化工, 2019, 48(8): 1985-1989.
[8] 崔梦冰, 刘清玲. 高分子膜材料在膜分离过程中的应用探析[J]. 现代盐化工, 2021, 48(1): 57-58.
[9] 史丹, 李鹏. “双碳”目标下工业碳排放结构模拟与政策冲击[J]. 改革, 2021(12): 30-44.
[10] 刘仓, 金亮, 陈航超, 等. 粉煤灰资源化提取研究进展[J]. 煤炭工程, 2021, 53(S1): 127-133.
[11] 张祥成, 孟永彪. 浅析中国粉煤灰的综合利用现状[J]. 无机盐工业, 2020, 52(2): 1-5.
[12] Zou D, Fan W, Xu J, et al. One-step engineering of low-cost kaolin/fly ash ceramic membranes for efficient separation of oil-water emulsions[J]. J Membrane Sci, 2021, 621: 118954.
[13] 黄吉光, 梁德华, 张政, 等. 泥料含水量对粉煤灰陶瓷膜支撑体性能的影响[J]. 硅酸盐学报, 2022, 50(6): 1582-1591.
[14] 同帜, 李岩, 闫笑, 等. 造孔剂羧甲基纤维素对粉煤灰基陶瓷膜支撑体性能的影响及其覆膜研究[J]. 材料导报, 2022,36(24): 57-62.
[15] 李波, 郭磊, 同帜, 等. 烧结制度对粉煤灰-黄土基陶瓷膜支撑体性能的影响[J]. 陶瓷学报, 2021, 42(5): 774-780.
[16] Wu X, Huo Z, Ren Q, et al. Preparation and characterization of ceramic proppants with low density and high strength using fly ash[J]. Journal of Alloys and Compounds, 2017, 702: 442-448.
[15] Wei Z, Hou J, Zhu Z. High-aluminum fly ash recycling for fabrication of cost-effective ceramic membrane supports[J]. Journal of Alloys and Compounds, 2016, 683: 474-480.
[17] 邢芩瑞, 马远, 李宇. 不同CaO源固废对钙长石全固废陶瓷矿相和性能的影响[J]. 有色金属科学与工程, 2021, 12(1): 39-48.
[18] Jiang Q, Zhou J, Miao Y, et al. Lower-temperature preparation of SiC ceramic membrane using zeolite residue as sintering aid for oil-in-water separation[J]. J Membrane Sci, 2020, 610: 118238.
[19] 同帜, 李岩, 闫笑, 等. 3种不同造孔剂对黄土基陶瓷膜支撑体性能的分析研究[J]. 功能材料, 2020, 51(2): 2182-2187.
[20] 李帅, 张快, 李运刚. 钙长石材料的研究现状综述[J]. 中国陶瓷, 2022, 58(4): 16-21.
[21] 杨益. 多种固废协同制备复相多孔陶瓷工艺及性能研究[D]. 西南科技大学, 2022.
[22] 冯杰, 赵介南, 凌可君. CaO–Al2O3–SiO2复合烧结助剂添加量对ZrO2/Al2O3复相陶瓷性能的影响[J]. 粉末冶金技术, 2019, 37(03): 175-183.
[23] Lierenfeld M B, Zhong X, Reusser E, et al. Species diffusion in clinopyroxene solid solution in the diopside-anorthite system[J]. Contributions To Mineralogy and Petrology, 2019, 174(5);46.
[24] Tian L, Wang L, Wang K, et al. The preparation and properties of porous sepiolite ceramics[J]. Scientific Reports, 2019, 9;7337.

服务与反馈：

【文章下载】【加入收藏】

《膜科学与技术》编辑部地址：北京市朝阳区北三环东路19号蓝星大厦邮政编码：100029 电话：010-64426130/64433466 传真：010-80485372邮箱：mkxyjs@163.com