Vinyl Terminated Silicone Fluid factory
Vinyl Terminated Silicone Fluid
Everything you need to know about our products and company
Vinyl silicone fluid, as a core functional silicone product, demonstrates exceptional versatility and reliability in the industrial additives sector. Its unique molecular structure combines the flexibility of a siloxane backbone with the reactivity of terminal vinyl groups, delivering customized solutions for various industrial applications.
In polymer modification, vinyl silicone oil effectively enhances the lubricity and wear resistance of engineering plastics through free radical reactions or hydrosilylation, reducing the coefficient of friction in materials such as nylon and PBT by over 40%. As a rubber processing additive, it significantly improves mixing efficiency, reducing energy consumption by 15% while enhancing the aging resistance and surface gloss of finished products.Compliant with REACH, RoHS, and other international certifications, vinyl silicone oil has become the preferred additive for industrial innovation and upgrading, providing manufacturers with comprehensive solutions that balance performance, cost, and environmental requirements.
Physical Properties
Chemical Properties
Product Functions
As a core component of crosslinking agents, it reacts with hydrogen-containing silicone oil (Si-H) via hydrosilylation, effectively promoting crosslinking and curing of rubber, resins, and other materials.Forms a stable three-dimensional network structure, enhancing the material’s physical and mechanical properties.
Significantly improves material flexibility, tensile strength, and tear resistance.
Enhances thermal stability, weather resistance, and chemical stability, broadening application scenarios.
Reduces polymer melt viscosity and improves processing fluidity, facilitating molding in processes like compression molding, extrusion, and injection molding.
Increases production efficiency, reduces defect rates, and enhances surface smoothness.
Applications
Used in natural rubber, styrene-butadiene rubber (SBR), silicone rubber, and other rubber products (e.g., tires, seals, hoses, belts) to enhance overall performance.
Modifies polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and other plastics to improve processing properties, impact resistance, and flexibility.
Applied in pipes, sheets, injection-molded products, and more.
Serves as an additive in coatings and adhesives to:
Strengthen coating-substrate adhesion.
Improve abrasion resistance, corrosion resistance, and weather resistance of coatings.
Enhance bonding strength and flexibility of adhesives.
Used in electronic encapsulants, potting compounds, and thermal interface materials (TIMs) to:
Improve electrical insulation properties, thermal stability, and flexibility.
Protect electronic components from environmental stressors.
Core Advantages
| Feature | Technical Parameter | Application Benefit |
| High-Temperature Stability | Continuous heat resistance up to 280°C | Suitable for high-temperature processing environments |
| Exceptional Lubricity | Friction coefficient reduced by 60% | Significantly lowers energy consumption |
| Long-Term Protection | Protection cycle extended by 3–5× | Reduces maintenance frequency |
| Broad Compatibility | Compatible with 200+ materials | Widens application scope |
| Eco-Safe | Certified by SGS | Meets green manufacturing standards |
Market Value
Core Value Drivers
Terminal vinyl active sites: Enable controllable crosslinking capabilities.
Polysiloxane backbone: Provides stability across a broad temperature range (-50–250°C).
Adjustable molecular weight (500–100,000 cSt): Meets diverse viscosity requirements.
High-temperature resistance: Extends service life by 3–5× compared to mineral oil-based additives.
Chemical inertness: Maintains stability in acidic/alkaline environments (pH 2–12).
Tunable surface energy (20–24 mN/m): Adapts to interfacial demands across substrates.
Heavy metal/halogen-free: Complies with RoHS/REACH.
Biodegradable derivatives: Ester-functional modifications for sustainable alternatives.
Low VOCs: Meets EU industrial emission standards.
Market Size
Global Market Data
2023 Market Size: $1.8–2.2 billion.
CAGR: 6.5%–8% (2024–2030).
Future Technology Trends
Dendritic architectures: Enhanced branching for improved reactivity.
Heteroatom doping: Introduction of Si-O-C bonds for tailored properties.
Continuous flow reactors: Yield increased to 99%.
AI-driven molecular weight control: Precision synthesis optimization.
Bio-based monomer substitution rate >30%: Renewable feedstock integration.
Closed-loop recycling systems: Minimizes waste in production.
Experimental Data & Case Studies
Experimental Data
| Test Item | Test Standard | Test Result |
| Lubricity Performance | ASTM D4172 | 65% reduction in wear volume |
| High-Temperature Resistance | ASTM D2070 | No decomposition at 280°C |
| Rust Prevention | ASTM D665 | Passes 1,000h test |
| Volatility | ASTM D972 | 0.3% weight loss/24h |
Case Studies
Issue: Severe residue from traditional release agents.
Solution: 5% vinyl silicone oil formulation.
Result: 50% reduction in demolding force with zero residue.
Need: Extend tool lifespan.
Solution: 3% vinyl silicone oil addition.
Result: Tool lifespan tripled.
Challenge: Improve flowability and surface quality.
Solution: 1.5% vinyl silicone oil integration.
Result: 70% reduction in defect rate.
Preparation Process, Core Technologies, and Precautions
Preparation Process
Main raw material: Octamethylcyclotetrasiloxane (D4, purity ≥99.8%).
End-capping agent: Tetramethyldivinyldisiloxane (Vi-MVi, purity ≥99.5%).
Catalyst: Tetramethylammonium hydroxide (TMAH, 10% aqueous solution).
Reactor pretreatment: Nitrogen purging (oxygen content <50 ppm).
Feed ratio: *n*(D4):*n*(Vi-MVi) = 100:1–20:1 (for molecular weight control).
Temperature gradient: 80°C (initial) → 120°C (equilibrium).
Vacuum level: -0.095 to -0.098 MPa.
Reaction time: 4–6 hours (critical for PDI control).
Catalyst deactivation:
Thermal decomposition: 180°C for 2 hours (residual TMAH <10 ppm).
Chemical neutralization: Phosphoric acid adjustment to pH 6.5–7.0.
Molecular distillation: Temperature 180–220°C, fraction collection.
Adsorption refinement: Activated carbon/molecular sieve composite beds.
Core Technologies
Copolymerization:
Introduction of ViD3 monomer (side-chain vinyl content: 0.5–5 mol%).
Reaction temperature: 100–130°C (prevents crosslinking).
Platinum-catalyzed hydrosilylation (Si-H:Vi = 1.05:1).
Fluoroalkyl groups: Reduces surface energy to 12 mN/m.
Polyether segments: Adjustable HLB value (8–18).
Dual end-capping technology:
Sequential vinyl and hydroxyl end-capping.
End-group conversion rate >98%.
Silazane chain extenders increase molecular weight by 2–5 times.
Ultra-purification:
Ion-exchange resins (metal ions <0.1 ppb).
0.1 μm precision filtration.
Special structures:
Hyperbranched architecture (viscosity index >300).
Sterilization:
Gamma irradiation (25 kGy dose).
Endotoxin control <0.25 EU/mL.
Biocompatibility modification:
Phosphorylcholine surface grafting.
Critical Parameter Monitoring
Online viscosity detection (±2% error).
Near-infrared spectroscopy (vinyl content analysis).
Particle size analysis (emulsion D50 <100 nm).
Stability Control
Antioxidant system:
BHT (500–1000 ppm).
Synergists (vitamin E derivatives).
Solvent-free process: Reduces energy consumption by 40% in bulk polymerization.
Catalyst recovery: Membrane separation technology (recovery rate >90%).
Low-boiling cyclic siloxane recycling: D3/D4 recovery rate >98%.
Waste catalyst treatment: Electrochemical regeneration.
Packaging & Ordering
Packaging: 200kg/1000kg plastic drums (customizable).
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