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Dynasylan® MTMS

Technical Datasheet | Supplied by Evonik
Dynasylan® MTMS by Evonik is a methyltrimethoxysilane grade. Acts as a crosslinker. It is a colorless, low-viscosity liquid. It is regarded as trifunctional since all three alkoxy groups are able to hydrolyze. Additionally, it contains a methyl group that adds organic character to the products. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (-Si-O-Si-). Condensation occurs parallel to hydrolysis once a certain amount of silanol groups have been formed. The absolute and relative rates of hydrolysis and condensation depend on a number of factors. The most important factors include pH, concentration, solvent, temperature and the catalyst. In some sol-gel applications Dynasylan® MTMS is partially hydrolyzed to form a pre-product that can be further crosslinked using temperature. This prehydrolysis often is done in conjunction with other organofunctional silanes (e.g. Dynasylan® GLYMO), silicic acid esters or even an aqueous silica sol. Listed with EINECS/ELINCS, AICS, DSL/NDSL, PICCS, TSCA, IECSC, ENCS, ECL and REACH. It has a minimum shelf life of 12 months.
Product Type
Crosslinking / Curing / Vulcanizing Agents > Silanes
Chemical Composition
Methyltrimethoxysilane
CAS Number
1185-55-3
Physical Form
Liquid
Appearance
Colorless
Product Status
COMMERCIAL
Applications/ Recommended for
  • Adhesives
  • Sealants
Bio Based
No
Labels/Agency Rating
EINECS/ELINCS,
AICS,
DSL/NDSL,
PICCS,
TSCA,
IECSC,
ENCS,
ECL,
REACH

Dynasylan® MTMS Properties

Property

Value & Unit
Test Condition
Test Method
Density @ 20°C, DIN 51757
0.96 g/cm3
Viscosity @ 20°C, DIN 53015
0.5 mPa.s
Flash Point, DIN 51755
9 °C

SpecialChem additionnal informations based on CAS Number : 1185-55-3

Hansen Solubility Parameters

[14.1, 3.9, 4.1]
?
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Dynasylan® MTMS. A practical determination of these HSP values would provide higher certainty. Learn More.

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