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3-(Triethoxysilyl)propyl Methacrylate 21142-29-0 99%

CAS No.:21142-29-0
Purity:99%
Place of Origin:Henan China
MF:C13H26O5Si
Appearance:Colorless Liquid
Certification:MSDS,COA,TDS
Free Samples

CATEGORY

3-(Triethoxysilyl)propyl methacrylate is a bifunctional silane coupling agent possessing both methacrylate and triethoxysilyl functional groups, capable of forming strong chemical bonds between organic polymers and inorganic materials. This product is widely used in glass fiber reinforced composites, coatings, adhesives, sealants, unsaturated polyester resins, acrylic resins, and surface treatments, significantly improving the adhesion, mechanical strength, water resistance, weather resistance, and corrosion resistance of materials. Its excellent reactivity makes it an important additive for improving the interfacial bonding properties between resins and substrates such as glass, metals, and mineral fillers.

Product picture:

Comparable Products:

Dow Corning Z-6036

Shinetsu: KBE-503

Momen-tive:Y-11878

Function

1. This product is suitable for polyethylene and copolymers of various complex shapes and densities; it is suitable for a wide range of processing tolerances, filled composite materials, etc., and has a high operating temperature, excellent resistance to pressure cracking, abrasion resistance, and impact resistance. It can be grafted onto the polymer backbone to modify polyethylene and other polymers, giving their side chains ester groups that act as active sites for warm water crosslinking.

2. When used with glass fibers, it can effectively improve the mechanical properties (flexural strength, tensile strength, etc.) of glass fiber products and their adhesion to the matrix (various resins, including thermosetting and thermoplastic resins).

3. As a post-additive in inks and coatings, it can give inks and coatings excellent film hardness and gloss; it also improves the adhesion of optical fiber coatings.

4. As a reinforcing agent and crosslinking accelerator, it is widely used in composite materials, coatings, inks, adhesives, and sealing materials. It can also be used as a resin modifying additive and enzyme immobilizer.

5. As a crosslinking agent, it can be used in silane-crosslinked polyethylene cables and pipes; in the wire and cable industry, this coupling agent is used to treat clay-filled peroxide-crosslinked EPDM systems, improving the consumption factor and specific inductance and capacitive reactance.

6. It can copolymerize with vinyl acetate and acrylic or methacrylic acid monomers; these polymers are widely used in coatings, adhesives, and sealants, providing excellent adhesion and durability.

Technical Specifications:

Parameter	Specification
Appearance	Slightly yellow to colorless transparent liquid
Color (Pt-Co), ≤	35
Density (ρ 20°C), g/cm³	0.985–1.010
Refractive Index (nD 25°C)	1.4280–1.4330
Purity, %, ≥	97.0