Surface modification of white carbon black: solving the bottleneck problem in high-end applications
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Surface modification of white carbon black: solving the bottleneck problem in high-end applications
Traditional white carbon black has poor dispersibility in rubber due to the easy aggregation of surface hydroxyl groups. The modification technology of silane coupling agent grafts organic groups onto the surface through Si-O-Si bonds, reducing the viscosity of the adhesive by 40% and significantly improving its processing performance. In the field of new energy, fluorinated modified white carbon black can reduce the thermal shrinkage rate of lithium battery separators from 5% to 0.5%, improving safety performance. By 2025, the global market size of modified white carbon black is expected to exceed 8 billion US dollars, with a profit margin of 30% for medical grade products.
