Product Information

Product Code：D-2401

Chemical Name: n-Propyltrimethoxysilane

Molecular formula： C₆H₁₆O₃Si

Molecular weight： 164.28

CAS No.： 1067-25-0

Product Properties

◆ Colorless transparent, low viscosity liquid. Soluble in alcohols, chain hydrocarbons and aromatic hydrocarbons and other organic solvents.

◆ It contains one propyl group and three hydrolyzable alkoxy groups.

◆ React with inorganic materials.

◆ It can be hydrolyzed to form an elastomer or a hydrophobic layer.

Technical data

Note: the above data is for reference only, cannot be as a technical specification. 

Reactivity

D-2401 is an alkyl trialkoxysilane. The trialkoxy group is hydrolyzable, and after hydrolysis, the silicon hydroxyl group (Si-OH) is easily condensed to form a very stable silico-silicon structure (-Si-O-Si -). There are many factors affecting hydrolysis and condensation, the most important factors are: PH value, concentration, solvent, temperature and catalyst.

D-2401 is hydrolyzed to form silanol, which can react with the hydroxyl group on the surface of inorganic materials such as quartz, clay, and silica to form a hydrophobic layer.

The alkoxysilane in D-2401 can react with hydroxy-terminated alkoxysilane under the action of catalyst. Then, using the hydrolyzable condensation of alkoxysilane, elastomers with good mechanical properties can be formed.

Application

Dealcoholized single component room temperature vulcanized silicone rubber crosslinking agent, silicone resin coating. D-2401 hydrolyzed condensation of transparent coatings, widely used in plastic products such as sunlight panels, eye lenses, sunglasses and automotive taillights surface hardening, wear-resistant and solvent resistant coating.

Sol-gel for the production of organic and inorganic hybrid materials. D-2401 can be used alone, or with other silicates (such as D-101, D-130), or other organosilanes co-hydrolyzed, through the sol-gel process, by adjusting the hydrolysis of PH, temperature and concentration and other conditions to achieve a variety of required properties.

Surface hydrophobic agent for inorganic materials. When used as filler pigment treatment agent, the recommended addition amount of D-2401 is 0.5 to 1.0% of the total solid content. When used as powder filler treatment agent, D-2401 can be directly added to the powder mixer to treat the filler. D-2401 can also be used with methanol or isopropyl alcohol diluted to 10%, in general, silane relative to the total solid content of 0.5 to 1.0%.

Pigment dispersant aid. It can be added directly to the resin with the pigment to improve the dispersion of the pigment in the resin.