Materials — Process Challenge

Silanos de Acoplamento para Compósitos e Adesivos

A adesão entre polímeros orgânicos e substratos inorgânicos (vidro/mineral/metal) exige organossilanos de acoplamento
Updated Jun 2026
Abordagem de solução

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (9)
3-aminopropyltriethoxysilane
CAS 919-30-2
Silanos e Organossilanos
Primary amino silane coupling agent
Amino end bonds to epoxy/PU/phenolic resin while the hydrolyzed silanol end condenses onto glass and mineral fillers, building a covalent bridge across the organic/inorganic interface
Ponto de fusão:-70 °C   Ponto de ebulição:217 °C   Densidade:0.94 at 25 °C
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3-glycidoxypropyltrimethoxysilane
CAS 2530-83-8
Silanos e Organossilanos
Epoxy silane for composites
Epoxy-functional silane that couples epoxy and acrylic matrices to silica/glass, improving wet adhesion and composite strength retention
Vapor Pressure: 0.002
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Viniltrimetoxissilano
CAS 2768-02-7
Silanos e Organossilanos
Vinyl silane for polyethylene crosslinking
Vinyl group co-reacts with peroxide-cured polyolefins/rubber while silanols anchor to filler - also the basis of moisture-cure PE crosslinking
Ponto de fusão:ˆ'97°C   Ponto de ebulição:123°C at 1013 hPa (converted to 101.3 kPa) (760…   Densidade:Specific Density: 0.94 (water = 1)
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Mercaptopropiltrimetoxissilano
CAS 4420-74-0
Silanos e Organossilanos
Mercapto silane for rubber compounding
Thiol end bonds to sulfur-cured rubber and metals; couples elastomers and sealants to mineral substrates
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Tetraethyl orthosilicate (TEOS)
CAS 78-10-4
Aditivos Especiais
Acoplamento / Promoção de adesão
1292 (ETHYL SILICATE) · Class
Tetrafunctional silicate that acts as a condensation-cure crosslinker and silica precursor for sol-gel and RTV systems. It is a crosslinker/silica source rather than an organofunctional coupling agent that bridges organic and inorganic phases (the spine assigns it the Coupling/Crosslinking role)
Physical Description: Ethyl silicate appears as a clear colorless liq…   Appearance: Colorless liquid   Odor: Sharp alcohol-like odor
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3-aminopropyltrimethoxysilane
CAS 13822-56-5
Amino-functional coupling agent; the trimethoxy analog of the page's already-listed APTES. Primary amine reacts into epoxy/phenolic/PU adhesive matrices while the faster-hydrolyzing methoxy silanols anchor to glass fiber and mineral filler. Textbook organic-inorganic bridge for composite adhesive systems — same role and same target chemistries as the listed products. Genuine fit.
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3-(2-Aminoethylamino)propyltrimethoxysilane
CAS 1760-24-3
Diamino coupling agent (A-1120), an industry-standard adhesion promoter and glass-fiber sizing silane. The secondary+primary amine pair reacts strongly with epoxy and phenolic resins, and it is a canonical coupler for composite adhesive interfaces — higher reactivity than the mono-amino APTES for the exact epoxy/phenolic matrices this page targets. Genuine fit.
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3-glycidoxypropyl methyldiethoxysilane
CAS 2897-60-1
Epoxy (glycidoxy)-functional coupling agent. Despite being the difunctional/methyl-substituted variant (only two hydrolyzable ethoxy groups, giving a more flexible, less densely crosslinked interphase), the glycidoxy head still reacts with amine/hydroxyl adhesive polymers while the silanols bond the inorganic substrate. It is used as a coupling/adhesion-promoting silane for adhesives and sealants,
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3-glycidoxypropyltriethoxysilane
CAS 2602-34-8
Epoxy-functional coupling agent; the triethoxy analog of the page's already-listed GPTMS. Glycidoxy reacts into epoxy/PU/acrylic matrices while ethoxy silanols condense onto glass and mineral filler, improving wet adhesion in composites. Same reactive head, same use-case, and same target matrices as a listed product. Genuine fit.
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