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Example silica

  • 13-18 hydroxyl groups/sq nm

  • Particles 7-60 nm

  • BET 185 m2/g

  • CTAB 145 m2/g

  • Goodyear patent 2006012885

    • Huber silica

This example from a patent application for a rubber application shows how some customers (and suppliers) are now presenting surfaces of their fillers. BET is a nitrogen adsorption and CTAB is bulky surfactant which doesn’t make it into all the fine porous structure.

STP0260

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