Compounding — Process Challenge

充填ポリマー用シランカップリング剤

無機充填材配合熱可塑性・熱硬化性樹脂は、充填材とポリマーの接着不良、低機械強度、水分による界面剥離に悩まされる。シランカップリング剤は無機充填材と有機マトリックスを架橋する。
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 (10)
3-aminopropyltriethoxysilane (APTES)
CAS 919-30-2
シラン・有機シラン
Primary amino silane
Triethoxy end hydrolyzes to silanols that condense onto mineral-filler hydroxyls while the pendant primary amine reacts with the polymer, forming a covalent filler-to-matrix bridge
融点:-70 °C   沸点:217 °C   密度:0.94 at 25 °C
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3-aminopropyltrimethoxysilane (APTMS)
CAS 13822-56-5
シラン・有機シラン
Methoxy amino silane
Methoxy version hydrolyzes faster than ethoxy for quicker filler surface anchoring; the amine couples to acidic/anhydride-functional polymers
Physical Description: Clear to straw-colored liquid with an ammoniaca…
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3-(2-Aminoethylamino)propyltrimethoxysilane (diamine silane)
CAS 1760-24-3
シラン・有機シラン
Enhanced adhesion
Two amine groups give higher reactive-site density at the interface, raising bond durability under moisture for filled compounds
Physical Description: Light yellow liquid   Vapor Pressure: 0.03
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(3-Aminopropyl)silanetriol
CAS 58160-99-9
シラン・有機シラン
Pre-hydrolyzed
Pre-hydrolyzed water-borne aminosilane needs no in-situ hydrolysis, useful for aqueous filler-slurry treatment
Physical Description: 0.1-5.0% aqueous solution: Colorless odorless l…
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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
A filler already silane-surface-treated, demonstrating the hydrophobized-interface effect that improves wet-out and dispersion in non-polar matrices
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Vinyltris(2-Methoxyethoxy)Silane
CAS 1067-53-4
シラン・有機シラン
Moisture-cure systems
Silane A-172. Methoxyethoxy groups hydrolyze onto ATH/silica filler; vinyl grafts into peroxide/silane-crosslinked PE. The standard coupling agent for mineral-filled crosslinkable PE and wire & cable compounds. Genuine filler-matrix adhesion role. CAS correct.
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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
Silane A-171. Trimethoxy bonds the mineral filler while vinyl co-reacts during crosslinking of filled polyethylene/EPDM, raising strength and resisting moisture debonding. Established vinyl coupling agent for filled polyolefins. CAS correct.
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-glycidoxypropyl methyldiethoxy silane
CAS 2897-60-1
Monoalkyl epoxy silane
Difunctional epoxy silane (PubChem CID 62467, C11H24O4Si). Diethoxy anchors to filler; glycidoxy cures into epoxy/urethane/amine matrices, the single methyl giving a flexible, lower-stress interphase in filled thermosets. Legitimate coupling agent. CAS verified.
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3-glycidoxypropyltriethoxysilane
CAS 2602-34-8
シラン・有機シラン
Ethoxy epoxy silane
Trialkoxy epoxy silane (PubChem CID 102856, C12H26O5Si, triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane). Triethoxy densely bonds mineral filler; glycidoxy cures into epoxy/urethane, bridging filler and resin in filled thermoset composites. Genuine fit. CAS verified.
Physical Description: 液体
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3-Methacryloxypropylmethyldimethoxysilane
CAS 14513-34-9
シラン・有機シラン
カップリング / 接着促進
Difunctional methacrylate silane (PubChem CID 84485, C10H20O4Si). Dimethoxy binds filler; methacryloxy copolymerizes into radical-cured unsaturated-polyester/acrylic matrices (e.g., ATH-filled cast composites), with a flexible interphase. Legitimate coupling agent. CAS verified.
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