Thermoset — Process Challenge

充填熱硬化性樹脂用カップリング剤

シランおよびチタネートカップリング剤により、充填熱硬化性樹脂におけるフィラー分散性の向上、粘度低減、機械物性の向上を実現
Updated Jun 2026
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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 Formulation Workflow
1
Polymer & Process Definition
Identify the resin and process (extrusion, molding, film) and the targets — thermal stability, clarity, flame retardance, slip, or color.
2
Additive Selection
Match stabilizers, antioxidants, plasticizers, lubricants, flame retardants, or masterbatch carriers to the polymer and processing temperatures.
3
Compounding Trial
Confirm loading and dispersion on a compounding or molding trial, checking processability, mechanicals, and aesthetics against the control.
4
Validation & Scale-Up
Verify long-term performance (heat aging, migration, weathering) and lock the formulation, packaging, and lot specs for production.
Recommended Chemistries (9)
3-glycidoxypropyltrimethoxysilane (GPTMS)
CAS 2530-83-8
シラン・有機シラン
Primary epoxy silane
Epoxy silane couples mineral filler to epoxy/anhydride thermoset; the glycidoxy group reacts into the resin network while silanols bond the filler, raising strength and cutting viscosity
Vapor Pressure: 0.002
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3-glycidoxypropyltriethoxysilane (GPTES)
CAS 2602-34-8
シラン・有機シラン
Ethoxy epoxy silane
Ethoxy epoxy silane with slower hydrolysis for longer working time during filler treatment
Physical Description: 液体
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3-aminopropyltriethoxysilane (APTES)
CAS 919-30-2
シラン・有機シラン
Primary amino silane
Amino silane couples fillers into amine-cured epoxies and anhydride systems for improved dispersion and interfacial adhesion
融点:-70 °C   沸点:217 °C   密度:0.94 at 25 °C
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Hydrophobic Modified Fumed Silica
CAS 68909-20-6
シラン・有機シラン
Treated silica for non-polar systems
Pre-treated reinforcing filler showing the dispersion/viscosity benefit of a hydrophobized surface in resin systems
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3-aminopropyltrimethoxysilane
CAS 13822-56-5
シラン・有機シラン
Methoxy amino silane
Trimethoxy (faster-hydrolyzing) analog of the already-listed APTES; primary amine bonds mineral filler into the amine/epoxide-cured epoxy and anhydride thermosets explicitly named on the page. Same role, same problem.
Physical Description: Clear to straw-colored liquid with an ammoniaca…
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Vinyltris(2-Methoxyethoxy)Silane
CAS 1067-53-4
シラン・有機シラン
Moisture-cure systems
A-172 vinyl coupling agent; vinyl group radical-copolymerizes into the styrene crosslink of the peroxide-cured unsaturated polyester and vinyl ester resins named on the page, coupling mineral fillers in exactly those in-scope systems.
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ビニルトリメトキシシラン
CAS 2768-02-7
シラン・有機シラン
PE crosslinking and polyester
A-171 vinyl silane; radical-copolymerizes with the unsaturated polyester / vinyl ester matrix during peroxide cure to bond treated mineral filler. Page names both polyester and vinyl ester, so scoped to filler coupling here it is a genuine fit (distinct from its PE-crosslinking use, which is a different page).
融点:ˆ'97°C   沸点:123°C at 1013 hPa (converted to 101.3 kPa) (760…   密度:Specific Density: 0.94 (water = 1)
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3-(2-Aminoethylamino)propyltrimethoxysilane
CAS 1760-24-3
シラン・有機シラン
Enhanced adhesion
DAMO / A-1120 / Z-6020 diamino silane; two reactive amines give stronger filler-to-resin coupling in the epoxy and anhydride thermosets on the page versus monoamino silanes. Genuine same-use complement to APTES.
Physical Description: Light yellow liquid   Vapor Pressure: 0.03
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3-glycidoxypropyl methyldiethoxy silane
CAS 2897-60-1
Monoalkyl epoxy silane
Epoxy-functional coupling agent; glycidoxy reacts into the epoxy/anhydride matrix on the page, and the methyl (difunctional) substituent deliberately builds a lower-crosslink, more flexible filler interphase. Documented coupling-agent use, complementary to the listed trifunctional GPTMS/GPTES.
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