Silica modified
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There are a large number of hydroxyl groups on the surface of white carbon black, which leads to easy agglomeration. During use, white carbon black usually needs to be modified to improve its dispersibility. The modification methods of white carbon black mainly include physical modification and chemical modification. White carbon black dispersants are mainly fatty acid ester and zinc soap surfactant mixtures, alcohols and alcohol amines, fatty acid zinc soaps, ester alcohol complexes, and silane coupling agents. Among them, the coupling agent Si69 is the earliest found and has the best effect. White carbon black modifier.
