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第 36 卷第 4 期 精 细 化 工 Vol.36, No.4
201 9 年 4 月 FINE CHEMICALS Apr. 2019

功能材料
硅烷偶联剂改性粉煤灰基白炭黑及其分散性能

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柳丹丹，崔静磊，方 莉 ，郭彦霞，程芳琴
（山西大学 资源与环境工程研究所，国家环境保护煤炭废弃物资源化高效利用技术重点实验室，山西低附
加值煤基资源高值利用协同创新中心，山西 太原 030006）

摘要：采用 3 种硅烷偶联剂 3-氨丙基三乙氧基硅烷（APTES）、3-巯丙基三乙氧基硅烷（MPTES）与 3-(2,3-环氧
丙氧)丙基三乙氧基硅烷（GPTES）对粉煤灰基白炭黑进行表面改性。借助 FTIR、TGA、Zeta 电位仪和 SEM 考
察并比较了氨基、巯基、环氧类硅烷偶联剂对改性白炭黑分散性能的影响。结果表明，3 种硅烷偶联剂均可接
枝于白炭黑表面，且改性后白炭黑粒子分散性得到明显改善。分散性不仅与改性后白炭黑产品粒径相关，而且
与硅烷偶联剂的负载量有一定关联。其中，MPTES 对白炭黑的改性效果最佳，当 pH 为 10、MPTES/SiO 2 物质
的量比为 1.0∶1.0 时，得到的改性白炭黑在乙醇中的分散性最好，粒径为 557 nm，Zeta 电位绝对值为 36.43 mV。
关键词：硅烷偶联剂；粉煤灰；白炭黑；分散性；Zeta 电位；功能材料
中图分类号：F407.7 文献标识码：A 文章编号：1003-5214 (2019) 04-0588-07

Preparation of White Carbon Black from Fly Ash Modified with

Silane Coupling Agents and Its Dispersion Properties

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LIU Dan-dan, CUI Jing-lei, FANG Li , GUO Yan-xia, CHENG Fang-qin
（Institute of Resources and Environmental Engineering, State Environmental Protection Key Laboratory on Efficient
Resource-utilization Techniques of Coal Waste, Shanxi Collaborative Innovation Center of High Value-added Utilization
of Coal-related Wastes, Shanxi University, Taiyuan 030006, Shanxi, China）

Abstract: Three silane coupling agents, 3-(aminopropyl)triethoxysilane (APTES), 3-(mercaptopropyl)-
triethoxysilane (MPTES) and 3-glycidoxypropytriethoxysilane (GPTES) were used to modify the white
carbon black derived from fly ash. The effects of amino, thiol and epoxy silane coupling agents on the
dispersion of modified white carbon black were studied by FTIR, TGA, Zeta potentiometer and SEM. The
results showed that three different silane coupling agents were grafted successfully onto the surface of white
carbon black. The dispersity of modified white carbon black was improved obviously, which was related
not only to the particle size of modified white carbon black but also to the loading amounts of silane
coupling agents. Among them, the modification effect of MPTES was the best. Under the conditions of
pH=10 and n(MPTES)∶n(SiO 2)=1.0∶1.0, the obtained product had the best dispersity in alcohol, the size
was 557 nm and the absolute value of zeta potential was 36.43 mV.
Key words: silane coupling agents; fly ash; white carbon black; dispersity; Zeta potential; functional materials
Foundation items: National Natural Science Foundation of China (U1810205); National Key R&D Program
of China (2017YFB0603102); Shanxi Province Science and Technology Major Project (20181102004);
Shanxi Province Coal Based Low-carbon Technology Major Projects (MC2016-05)

[1]
粉煤灰是燃煤电厂产生的固体废弃物之一，由 氧化铝联产白炭黑是实现高值化利用的重要途径 。
于其氧化铝和氧化硅含量丰富（~80%），从中提取 本课题组前期在酸法提铝的过程中通过添加表面活

收稿日期：2018-10-19; 定用日期：2019-01-14; DOI: 10.13550/j.jxhg.20180774
基金项目：国家自然科学基金（U1810205）；国家重点研发计划（2017YFB0603102）；山西省科技重大专项（20181102004）；山西省
煤基低碳科技重大专项（MC2016-05）
作者简介：柳丹丹（1991—），女，博士生，E-mail：751156931@qq.com。联系人：方 莉（1970—），女，博士，教授，E-mail：
fangli@sxu.edu.cn。