3-Methacryloxypropyltrimethoxysilane, also known as γ-Methacryloxypropyltrimethoxysilane, is an organofunctional silane coupling agent. It consists of a methacryloxypropyl group attached to a trimethoxysilane group.
Chemical Structure:
Methacryloxypropyl Group (-CH₂=CHC(O)OCH₂CH2CH₂Si(OCH₃)₃): Provides reactive vinyl functionality, enabling polymerization and crosslinking with various substrates.
Trimethoxysilane Group (-Si(OCH₃)₃): Hydrolysable group for adhesion to inorganic surfaces through silanol formation.
3-Methacryloxypropyltrimethoxysilane
2530-85-0
A-174
GF 31/MPTM
Appearance | Colorless or slightly yellow transparent liquid |
| Purity(%) | ≥98%, ≥99% |
Density（ρ20）, g/cm³ | 1.039~1.053 |
Molecular Weight | 248.35 |
Refractive Index（n²⁵D） | 1.4280 ~1.4310 |
1.It is used as a coupling agent to improve adhesion of free radical cured resins, such as unsaturated polyester, to inorganic surfaces, including fiberglass, clay, quartz, and other siliceous materials. The improved adhesion increases dry and wet flexural compressive strength of the composite.
2.3-Methacryloxypropyltrimethoxysilane is used in fiberglass processing. After the sizing(including silane coupling agent) of fiberglass,improve the wet mechanical strength and electrical properties of fiberglass reinforced composites.
3.It is used in wire and cable industry. Clay(treated with silane) filled peroxide crosslinked EPDM can improve dissipation factor and specific inductance and capacitive reactance.
4.It is used in the copolymerization of monomers, copolymerized with vinyl acetate and acrylic or methacrylic Monomers, the polymer is widely used in coatings, adhesives and sealants, providing excellent adhesion and durability.
25kg, 200kg plastic or iron drum, IBC drum
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