Products Center > Aminosilane > 3-Aminopropyltrimethoxysilane


Product details

Amino and methoxy groups are used to couple organic polymers and inorganic fillers respectively to enhance their adhesion and improve the mechanical, electrical, water resistance, anti-aging and other properties of the product. 

Used in mineral filled thermoplastic and thermosetting resins such as phenolic, polyester, epoxy, PBT, polyamide, carbonate, etc., can greatly improve the dry and wet flexural strength, compressive strength, shear strength and other physical mechanics properties and wet electrical properties of plastics, and improve the wettability and dispersion of fillers in polymers. In resin sand casting, it enhances the adhesion of resin silica sand and improves the strength and moisture resistance of molding sand. In the production of fiberglass wool and mineral wool, adding it to the phenolic binder can improve moisture resistance and increase compressive resilience.

Excellent adhesion accelerator, can be used in polyurethane, epoxy, nitrile, phenolic adhesives and sealing materials to improve the dispersion of pigments and improve the adhesion to glass, aluminum and iron metals. It is also suitable for polyurethane, epoxy and acrylic latex coatings.

Used in the synthesis of amino silicone oil and its emulsion.

Product physical indicators

 CAS NO 13822-56-5
 Density at 25℃ 1.01g/ml
 Boiling Point 194℃
 Refractive Index(25℃) 1.420
 Flash Point 83°C
 Purity ≥97%
 Appearance Colorless transparent liquid.
 Solubility Soluble in alcohol, easily hydrolyzed.

Use and effect

KH-540 is an important additive in many application.Such as:

1.Glass fiber/glass fabric composites: as a finish or a size ingredient.

2.Glass and metal primers.

3.Foundry resins: as an additive to cold-curing phenolic and furan resins.

4.Sealants and adhesives: as a primer or additive and for chemical modification.

5. Mineral-filled composites: for pretreatment of fillers and pigments.

6.Paints and coatings: as an additive and primer for improving adhesion to the substrate.

Important functional effects that can be achieved through the use of KH-540 include:

1.Improved mechanical properties, such as flexural strength, tensile strength, impact strength and modulus of elasticity.

2.Improved moisture and corrosion resistance.

3.lmproved electrical properties, such as dielectric constant, volume resistivity.

KH-540 can also improve such processing properties as:


2.Filler dispersion

3.Rheological behavior in viscosity, Newtonian behavior.

4.Increased filler loading.


Sealed, cool room temperature, dry and ventilated, away from fire and heat sources.