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The hydrophilic surface of white carbon black often limits its use in hydrophobic systems. Surface modification techniques, such as silane coupling agents (e.g., bis(triethoxysilylpropyl)tetrasulfide), improve dispersibility in rubber and reduce moisture absorption. Plasma treatment and graft polymerization offer alternative routes to introduce functional groups like amines or epoxides, expanding its applications in coatings, adhesives, and drug delivery. Modified silica nanoparticles also exhibit enhanced UV absorption and mechanical reinforcement in composites. Future research aims to develop eco-friendly modifiers and scalable modification processes.