INDUSTRY COMPONENT

Cross-linking Agents

Cross-linking agents for silicone resin that form a three-dimensional network to enhance mechanical and thermal properties.

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Component Specifications

Definition
Cross-linking agents are chemical compounds used in silicone resin formulations to create covalent bonds between polymer chains, resulting in a thermoset network. This process improves the resin's hardness, elasticity, chemical resistance, and thermal stability. Common cross-linking agents for silicone resins include organosilicon compounds such as tetraethoxysilane (TEOS), methyltrimethoxysilane (MTMS), and vinyl-functional siloxanes. They are typically added in controlled amounts during the curing stage and activated by heat, moisture, or catalysts.
Working Principle
Cross-linking agents contain multiple reactive functional groups (e.g., alkoxy, vinyl, or silanol) that react with functional groups on silicone polymer chains (e.g., Si-OH or Si-H). Upon activation (heat, moisture, or catalyst), these reactions form siloxane (Si-O-Si) bridges, linking separate polymer chains into a three-dimensional network. This network restricts chain mobility, increasing rigidity, thermal stability, and resistance to solvents and chemicals.
Materials
Typically organosilicon compounds: tetraethoxysilane (TEOS), methyltrimethoxysilane (MTMS), vinyltrimethoxysilane (VTMS), or proprietary siloxane oligomers. Purity >98%, moisture content <0.1%.
Technical Parameters
  • Density 0.9-1.1 g/cm³
  • Reactivity Hydrolytic sensitivity
  • Shelf Life 12 months in sealed container
  • Flash Point >30°C
  • Boiling Point 120-170°C
Standards
ISO 9001, ASTM D5288

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cross-linking Agents.

cross-linking agents silicone resin crosslinker TEOS MTMS siloxane crosslinker thermoset silicone industrial chemical Cross-linking Agents in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Silicone Resin

A synthetic polymer derived from silicon, oxygen, and organic groups, known for its thermal stability, electrical insulation, and weather resistance.

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Daily Chemical Elastomer Gels

Specialized polymer gels with elastic properties designed for daily chemical applications such as personal care, cosmetics, and household products.

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Engineering Analysis

Risks & Mitigation
  • Moisture sensitivity leading to premature curing
  • Skin and eye irritation
  • Flammability at high temperatures
FMEA Triads
Trigger: Excessive moisture during storage
Failure: Premature hydrolysis and gelation of cross-linking agent
Mitigation: Use desiccants and nitrogen blanket; store in sealed containers.
Trigger: Incorrect dosage
Failure: Insufficient crosslinking (soft resin) or over-crosslinking (brittle resin)
Mitigation: Use precise metering and quality control testing.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5% of specified concentration
Test Method
Titration for functional group content; viscosity measurement per ASTM D2196

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the typical dosage of cross-linking agent in silicone resin?

Typically 1-10% by weight of resin, depending on desired crosslink density and application.

How do I store cross-linking agents?

Store in a cool, dry place away from moisture and heat. Keep containers tightly sealed.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Cross bars Crystalline Domains