Synthesis of SMA-PEG hyperdispersant and its stabilization mechanism for carbon black,Journal of Applied Polymer Science

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Synthesis of SMA-PEG hyperdispersant and its stabilization mechanism for carbon black
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-04-29 , DOI: 10.1002/app.54001
Yafang Kang ₁ , Aiping Zhu ₁

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In this paper, four comb hyperdispersants (SMA-MPEGA) with different side chain lengths and side chain densities were prepared by the amide coupling reaction of styrene-maleic anhydride (SMA) copolymer and methoxypolyethylene glycol amine (MPEGA). The dispersion behavior of SMA-MPEGA on carbon black was investigated by rheology and water contact angle measurement. The combined technologies of transmission electron microscopy, digital light synthesis, zeta potential, surface tension and UV–Vis have been successfully used to reveal the stability mechanism of SMA-MPEGA. The SMA3000-MPEGA1000 with a molar ratio of styrene to maleic anhydride of 3:1 and the molecular weight of side chain PEG of 1000 has the optimum carbon black dispersion. The results of the effect of dispersant structure on its dispersion performance reveal that the stable adsorption of dispersant on the surface of carbon black is the key to obtaining a space or electrostatic repulsion stabilizing role.

中文翻译：

SMA-PEG超分散剂的合成及其对炭黑的稳定机理

本文通过苯乙烯-马来酸酐(SMA)共聚物与甲氧基聚乙二醇胺(MPEGA)的酰胺偶联反应制备了四种不同侧链长度和侧链密度的梳状超分散剂(SMA-MPEGA)。通过流变学和水接触角测量研究了 SMA-MPEGA 在炭黑上的分散行为。透射电子显微镜、数字光合成、zeta 电位、表面张力和 UV-Vis 的组合技术已成功用于揭示 SMA-MPEGA 的稳定性机制。SMA3000-MPEGA1000在苯乙烯与马来酸酐摩尔比为3:1、侧链PEG分子量为1000的条件下炭黑分散效果最佳。

更新日期：2023-04-29

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