Synthesis and performance investigation of carbon black hyperdispersant IMD

IF 2.3 4区材料科学 Q2 Chemistry

Journal of Coatings Technology and Research Pub Date : 2023-05-30 DOI:10.1007/s11998-022-00754-3

Shuangshuang Jiang, Jue Bai, Xiaogang Ying, Jianlin Han, Kai Zhu, Lianshan Mao

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Abstract

An aqueous dispersion of carbon black is crucial in industrial coatings. In this manuscript, a hyperdispersant IBOMA-MPEGA-DMAM (IMD) has been synthesized using isobornyl methacrylate (IBOMA), polyethylene glycol monomethyl ether acrylate (MPEGA), and N, N-dimethyl acrylamide (DMAM) as monomers via a free radical polymerization method, which is used to improve the dispersibility of an aqueous dispersion system of carbon black. The molecular structure and performance stability of IMD were investigated through comprehensive characterizations of FTIR, GPC, particle size distribution and TEM. When the molar ratio of the monomers IBOMA:MEPGA:DMAM is 5.5:8.3:9.7, the obtained hyperdispersant shows good dispersibility. When the optimal dosage of dispersant IMD was 8%, the viscosity of carbon black slurry was as low as 18.6 mPa·s and the average particle size of carbon black was 275 nm. Furthermore, the stability of the prepared carbon black slurry was better than that of the two commercial dispersants.

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炭黑超分散剂IMD的合成及性能研究

炭黑的水性分散体在工业涂料中是至关重要的。本文以甲基丙烯酸异硼酸酯(IBOMA)、聚乙二醇单甲基丙烯酸酯(MPEGA)和N, N-二甲基丙烯酰胺(DMAM)为单体，采用自由基聚合法制备了一种超分散剂IBOMA-MPEGA-DMAM (IMD)，用于改善炭黑水分散体系的分散性。通过FTIR、GPC、粒度分布和TEM等综合表征，研究了IMD的分子结构和性能稳定性。当IBOMA:MEPGA:DMAM单体的摩尔比为5.5:8.3:9.7时，所制得的超分散剂具有良好的分散性。当分散剂IMD的最佳用量为8%时，炭黑料浆的粘度低至18.6 mPa·s，炭黑的平均粒径为275 nm。此外，制备的炭黑浆料的稳定性优于两种商用分散剂。

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来源期刊

Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

4.40

自引率

8.70%

发文量

期刊介绍： Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.