Methyl Hydrogen Silicone Fluid

Basic Product Information

• Product Name: Methyl hydrogen siloxane
• Appearance: Colorless to pale yellow transparent oily liquid.

TYPICAL PROPERTIES

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Physical Properties

Viscosity Range: 50–10,000 cSt (25°C)

Thermal Stability: Long-term stability from -50°C to 300°C

Chemical Properties

Reactive Si-H Bonds: Enable efficient platinum-catalyzed addition reactions with vinyl silicone oil to form three-dimensional cross-linked networks, ensuring robust material integrity.

Compliance: Meets ROHS, REACH, and UL certifications (flame-retardant grades); solvent residue-free.

Product Functions

• High-Efficiency Cross-Linking

Replaces traditional peroxide vulcanization, enabling byproduct-free curing.

• Interface Reinforcement

Enhances metal/plastic bonding strength by 3–5 times.

• Extreme Environmental Resistance

Withstands strong acids (pH 1) and organic solvents (e.g., DMSO).

• Customizable Functional Modifications

Tailored properties include thermal conductivity, flame retardancy, and electrical conductivity.

Applications

• Electronic & Electrical: Potting compounds, thermal interface materials, insulating coatings
• Automotive Manufacturing: Battery pack sealing, vibration damping components, wire harness protection
• Energy Equipment: PV frame sealing, wind turbine blade coatings
• Mechanical Engineering: Wear-resistant coatings, hydraulic seals, bearing lubrication
• Specialty Materials: 3D printing support materials, composite material interface treatment

Core Advantages

Market Value

Global Market Overview

• Market Size & Growth

2023 Market Size: USD 12.5–14 billion

2025 Projection: USD 16–18 billion (CAGR 8.5–10%)

2030 Outlook: USD 22–25 billion

Technological Innovation Highlights

• Breakthrough in High-Temperature Stability

Phenyl-Modified Products:

Long-term thermal stability >300°C

Thermal weight loss (250°C/24h) ≤3%

Market Premium:

2–3× higher price premium vs. conventional products

Dedicated to aerospace applications

• Eco-Friendly Product Development

Solvent-Free Technology:

VOC content ≤10 g/L

Compliant with EU REACH

Biodegradability:

28-day degradation rate ≥60%

Certified by USDA BioPreferred®

• Functional Hybridization

Conductive Grades:

Volume resistivity: 10³–10⁶ Ω·cm

Applied in antistatic packaging materials

Self-Healing Grades:

Dynamic disulfide bond system

Crack repair efficiency ≥90%

Experimental Data & Case Studies

• New Energy Vehicle Battery Pack Sealing
• Solution:

Two-component addition-cured silicone rubber

(Hydrogen silicone oil : Vinyl silicone oil = 1:100)

Thermal conductivity: 1.2 W/m·K; Flame retardancy: UL94 V-0

Certification: IP67 rating (validated by 1000h water immersion testing).

• Customer Benefits:

30% weight reduction vs. traditional rubber seals.

Annual procurement volume exceeding 200 metric tons by a Top 3 battery manufacturer.

Preparation Methods, Core Technologies & Precautions

Preparation Methods

• Raw Material Refining System

Chlorosilane Purification:

Three-stage distillation (theoretical plates ≥80)

Metallic impurities ≤0.5 ppm (ICP-MS verified)

Hydrogen Treatment:

Palladium membrane purification (purity ≥99.999%)

Dew point ≤-70°C

• Catalytic Hydrogenation Reaction

Reaction Conditions:

Temperature: 80–120°C (±1°C control)

Pressure: 2.0–3.5 MPa

Space velocity: 0.8–1.2 h⁻¹

Catalyst System:

Supported platinum catalyst (Pt content: 0.5–1.2%)

Lifetime ≥8,000 hours

• Molecular Weight Control Technology

Chain Transfer Agent:

Tetramethyldihydrodisiloxane (dosage: 0.5–2%)

Polydispersity index (PDI) ≤1.15

Process Control:

Reaction conversion rate ≥99%

Selectivity ≥98%

Core Functional Modification Technologies

• Phenyl Modification

Process Parameters:

Phenyltrichlorosilane ratio: 15–25%

Co-hydrolysis temperature: 40–50°C

Performance Enhancement:

Thermal resistance increased to 300°C

Refractive index: 1.48–1.52

• Fluoroalkyl Modification

Reaction System:

Perfluoroalkyl ethylene (Rf = 4–8)

UV-initiated addition

Special Properties:

Surface energy ≤15 mN/m

Chemical resistance improved by 5×

• Epoxy-Amino Synergistic Modification

Two-Step Process:

Epoxy modification (conversion rate ≥95%)

Amination (primary amine content ≥85%)

Application Properties:

Metal bonding strength ≥8 MPa

Curing time (25°C) ≤30 minutes

Advanced Product Manufacturing Technologies

• Electronic-Grade Purification

Purification Process:

Molecular distillation (≤0.1 Pa)

Zone melting (20 passes)

Ultrafiltration (0.1 μm ceramic membrane)

Key Metrics:

Metallic ions ≤0.1 ppb

Particles (≥0.2 μm) ≤10 counts/mL

• Medical-Grade Sterilization

Gamma Irradiation:

Dose: 25–30 kGy

SAL 10⁻⁶ standard

Terminal Filtration:

Dual-layer 0.22 μm PTFE membrane

Integrity test ≥3.5 bar

• Nano-Composite Technology

Dispersion System:

SiO₂ nanoparticles (10–20 nm)

Ultrasonic treatment (power ≥800 W)

Performance:

Thermal conductivity ≥1.5 W/m·K

Mechanical strength improved by 300%

Precautions

Avoid exposure to N/P/S-containing compounds (catalyst poisoning).

Post-mixing processing time <60 minutes (at 25°C).

Packaging & Ordering

Packaging: 200kg/1000kg plastic drums (customizable).