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USi-O402 — Vinyl Silane Oligomer
Low-VOC, High-Efficiency Adhesion Promoter for Filled Polymer Systems
Equivalent to: Evonik (formerly Degussa) DYNASYLAN® 6498
📄 Product Description
- Chemical Name: Vinyl Silane Oligomer
- Appearance: Colorless to light yellow transparent liquid
- Key Advantage: Oligomeric architecture delivers superior handling safety, reduced VOC emissions, and enhanced compatibility vs. conventional monomeric vinyl silanes (e.g., VTMS, VTES)
- Function: Forms a robust molecular bridge between inorganic mineral fillers and organic polymer matrices, significantly improving mechanical properties, moisture resistance, and filler dispersion
✅ Engineered for high-performance wire & cable, flame-retardant composites, and crosslinked polyolefins
✅ Lower methanol release during hydrolysis supports compliance with environmental regulations(Molecular structure available upon request – features vinyl-functional oligosiloxane backbone with hydrolyzable alkoxy groups)
📊 Typical Technical Data
⚠️ The following values are typical and provided for reference only. Not to be used for specification or quality acceptance without prior written confirmation from our technical team.
Parameter Specification Appearance Colorless to light yellow transparent liquid Density (20°C) 1.0190 ± 0.010 g/cm³ Specific Gravity (20°C) 1.4190 ± 0.0050 Viscosity ≤ 20 mPa·s (low viscosity, easy pumping) 💡 Note: Slight color variation does not affect performance. The dual density values reflect different measurement conventions; consult our team for application-specific guidance.
🌐 Applications
USi-O402 is tailored for demanding industrial composite formulations:
🔌 Wire & Cable Compounds
- Coupling agent for ATH (aluminum trihydrate) and MDH (magnesium dihydroxide) in EVA, PE, EPDM, and other insulation/jacketing materials
- Enables higher filler loading → superior flame retardancy without compromising flexibility or processability
🏗️ Flame-Retardant & Mineral-Filled Polymers
- Improves interfacial adhesion between kaolin, talc, or silica and thermoplastics/elastomers
- Reduces water uptake and enhances long-term durability in humid environments
♻️ Environmental & Process Benefits
- Significantly lower methanol (VOC) emission during hydrolysis compared to monomeric alternatives
- High flash point and boiling point → safer operation in extrusion, mixing, and high-temperature processing
📦 Packaging
- 25 L plastic pail
- 200 L steel or HDPE drum
- 1,000 L IBC tote
(All containers are sealed, labeled, and designed for safe industrial handling and transport)
🛡️ Safety & Storage
- Flammable liquid – keep away from heat, sparks, and open flame
- Store in original, tightly closed containers at ≤ 35°C in a dry, well-ventilated area
- Shelf Life: 12 months from production date under recommended storage conditions
- Always refer to the latest Safety Data Sheet (SDS) before use
→ Available at: www.usi-chemical.com or upon request - Use appropriate PPE: chemical-resistant gloves, safety goggles, and adequate ventilation
📞 Contact Us
Nanjing Union Silicon Chemical Co., Ltd.
- Headquarters:
Room 2002, Overseas Chinese Plaza, No.1 Daqiao North Road, Nanjing 210031, Jiangsu, P.R. China - Factory Address:
Dongcheng Guanli District, Gaizhou 115200, Liaoning, P.R. China - Tel: +86-25-5889 5266 / 5889 5699
- Fax: +86-25-5830 5349
- Website: www.usi-chemical.com
- Email: inquiry@usichemical.com
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