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首页> 外文期刊>Journal of Applied Polymer Science >Heterocoagulation behavior of carbon black with surface encapsulation through emulsion polymerization
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Heterocoagulation behavior of carbon black with surface encapsulation through emulsion polymerization

机译：乳液聚合表面包覆炭黑的杂凝行为

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摘要

Nanocomposite microspheres containing styrene-acrylate resin, wax, and carbon black (CB) with desired CB dispersion were prepared through heterocoagulation. The CB surface was modified using conventional anionic emulsifier and anionic dispersants with different lengths of nonionic chains and reactivities or through polymer encapsulation via emulsion polymerization to regulate the dispersion and concentration of CB in the microspheres. Experimental results showed that anionic dispersants with long nonionic chains effectively dispersed and stabilized CB particles. Polystyrene (PS) was then encapsulated on the CB surface by using a reactive dispersant and a water-soluble initiator of polymerization. The CB particles exhibited comparable pH stability with other heterocoagulation components. Overall, encapsulation through emulsion polymerization can be used to obtain not only high CB content but also improved CB distribution in the resulting microspheres. High coagulation efficiency can also be achieved using polystyrene-encapsulated dispersed CB because of its high affinity to emulsifiers and reactive dispersants during dispersion. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43516.
机译：通过异聚制备包含苯乙烯-丙烯酸酯树脂，蜡和具有所需CB分散度的炭黑（CB）的纳米复合微球。使用常规的阴离子乳化剂和具有不同长度的非离子链和反应性的阴离子分散剂，或通过乳液聚合通过聚合物包封来调节CB在微球中的分散和浓度，从而对CB表面进行了改性。实验结果表明，具有长非离子链的阴离子分散剂可有效地分散和稳定CB颗粒。然后通过使用反应性分散剂和水溶性聚合引发剂将聚苯乙烯（PS）封装在CB表面上。 CB颗粒具有与其他杂凝组分相当的pH稳定性。总体而言，通过乳液聚合进行的包封不仅可用于获得高CB含量，而且可用于改善所得微球中CB的分布。使用聚苯乙烯包封的分散炭黑，由于其在分散过程中对乳化剂和反应性分散剂的高亲和力，也可以实现高凝结效率。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43516。

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