UL Prospector
Prospector

Dynasylan® 40

Documents

Evonik Operations GmbH, BL Silanes vous présente la documentation dans les régions indiquées ci-dessous:

Dynasylan® 40 is a ethyl silicate with a silicon dioxide content of approximately 40 - 42 % upon complete hydrolysis (the Si content of Dynasylan® 40 is calculated as SiO2). Dynasylan® 40 is formed in the presence of water from tetraethyl silicate (Si[OEt]4) by partial hydrolysis of the ethoxy groups to hydroxyl groups and subsequent condensation with formation of siloxane bonds (-Si-O-Si-). Dynasylan® 40 is a colorless, low-viscosity liquid with an SiO2 content of 40% (the Si content of Dynasylan® 40 is calculated as SiO2). The polysilicic acids still have a sufficient content of ethoxy groups which can be activated by acid- or base-catalyzed hydrolysis. Condensation starts even during hydrolysis, with the formation of relatively large polymeric molecules. During storage of these hydrolysates, condensation continues until a gel is formed, where the rate depends on the degree of hydrolysis. The action of the hydrolysates as binders is based on the continuation of the hydrolysis with subsequent gelation and dehydration to give polymeric SiO2 structures.

Société

The service provided by the Evonik Operations GmbH, BL Silanes business is unique in the world, since scientists and engineers at Evonik are mastering the technology – their own and that of the customers. As a result of this, customers are given the best possible support in the areas of research, applied technology, and handling.

L'information donnée sur cette fiche technique a été donné à UL par le fournisseur de la matière. UL déploie des efforts considérables pour assurer l'exactitude de ces données. Cependant, UL n'assume aucune responsabilité pour les valeurs des données et vous encourage fortement de valider les données avant la sélection finale avec le fournisseur des matériaux.

Où acheter

Evonik Operations GmbH, BL Silanes

Etes-vous un distributeur et intéressé d’apparaître sur cette page? Contactez-nous!