日期:2026-10-24
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The silicon hydroxyl groups (Si OH) on the surface of gas-phase white carbon black can form physical or chemical bonds with the molecular chains of silicone rubber, forming an adsorption layer of "silica particles rubber molecules".
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This provides additional cross-linking centers for the micro network of silicone rubber, forming "concentrated cross-linking points".
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When the material is subjected to external forces, these cross-linking points can effectively disperse stress, thereby significantly improving strength and tear resistance. In liquid adhesives, gas-phase white carbon black mainly plays a thickening and thixotropic role, endowing the colloid with excellent anti sagging properties, making it easy to apply on facades or slopes.
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The dispersion state is crucial, and the optimal dispersion should form a complete three-dimensional network structure, presenting a "donut shaped" dispersion effect to ensure high viscosity and excellent thixotropy.
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1. High strength and transparent products: O-rings, seals, extruded tubes
2. Medical and food grade: pacifiers, medical equipment, tableware, baby products
3. Electronic and electrical: Insulation layer for wires and cables, utilizing its excellent electrical properties of silicone rubber
作者:东莞古源化工有限公司