Применение в герметиках и клеях
In sealants and adhesives, fumed silica plays a major role in rheological control and viscosity strength.
When fumed silica is added and dispersed in adhesives and sealants, a silica agglomerates network is formed, agglomerates react with SI-OH and result in hydrogen bonds, thus flowing property is restricted and viscosity increased, thickening property promoted; but,when shear thinning is applied, hydrogen bonds and silica network breaks,viscosity decreases, this allows adhesives and sealants to be applied smoothly; when shear thinning is removed, network restored,viscosity increases, this prevents adhesives and sealants from sagging during curing process.
НАСЧЕТ НАС
ООО «YICHANG HUIFU Силикон Материал» является национальным высокотехнологичным предприятием, специализирующимся на производстве коллоидного диоксида кремния, нанопорошка.
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