3-Mercaptopropyltriethoxysilane (CAS 14814-09-6) is a versatile organosilane compound widely used as a silane coupling agent in various industrial applications. As a leading supplier of specialty chemicals, Symb ChemTech offers high-quality 3-Mercaptopropyltriethoxysilane to meet the demanding needs of our customers. This thiol-functional silane plays a crucial role in enhancing adhesion, improving material properties, and extending product lifespan.
Product Overview
3-Mercaptopropyltriethoxysilane, often abbreviated as MPTS or referred to as a mercapto silane, is a key component in surface modification and adhesion promotion. Its unique molecular structure, featuring both organic (thiol) and inorganic (silane) functionalities, allows it to act as a bridge between dissimilar materials.
- Chemical Formula: C9H22O3SSi
- CAS Number: 14814-09-6
- Synonyms: 3-(Triethoxysilyl)propanethiol, γ-Mercaptopropyltriethoxysilane
Key Properties:
- Acts as an effective coupling agent
- Improves adhesion between organic and inorganic substrates
- Enhances mechanical properties and durability
- Improves corrosion resistance
Applications
3-Mercaptopropyltriethoxysilane finds extensive use in a variety of industries:
- Rubber and Tire Industry: Improves the adhesion between rubber and reinforcing fillers like silica, enhancing tire performance and durability.
- Adhesives and Sealants: Enhances bond strength and improves resistance to environmental degradation.
- Coatings and Paints: Improves adhesion to substrates and enhances corrosion protection.
- Composites: Improves the interfacial adhesion between fibers and matrix materials, leading to stronger and more durable composites.
- Metal Treatment: Used as a corrosion inhibitor and surface modifier.
Benefits of Using 3-Mercaptopropyltriethoxysilane
- Enhanced Adhesion: Significantly improves the bond strength between different materials.
- Improved Durability: Increases resistance to wear, abrasion, and environmental factors.
- Enhanced Mechanical Properties: Improves tensile strength, impact resistance, and other mechanical properties.
- Corrosion Resistance: Provides protection against corrosion in various applications.
Why Choose Symb ChemTech for Your 3-Mercaptopropyltriethoxysilane Needs?
At Symb ChemTech, we are committed to providing high-quality specialty chemicals and exceptional customer service.
- Quality Assurance: We adhere to strict quality control measures throughout our manufacturing processes.
- Certifications: We are ISO certified and comply with REACH regulations, ensuring the highest standards of quality and safety.
- Technical Expertise: Our team of experienced chemists and engineers provides expert technical support to our customers.
- Reliable Supply: We maintain ample inventory to ensure timely delivery and meet our customers’ demands.
Technical Specifications
- Purity: ≥ 98%
- Packaging: Available in various packaging options to meet customer needs.
- Storage: Store in a cool, dry place away from incompatible materials.
3-Mercaptopropyltriethoxysilane, also referred to as “MPTES”, is a versatile organosilane coupling agent widely utilized in various industries. Manufactured by Symb ChemTech, this high-quality chemical (CAS 14814-09-6) plays a crucial role in enhancing adhesion, surface modification, and crosslinking processes.
Technical Overview
- Molecular Formula: C9H22O3SSi
- IUPAC Name: Triethoxy(3-mercaptopropyl)silane
- Molecular Structure: As depicted in the molecular diagram, MPTES features a thiol group (-SH) and three ethoxy groups (-OCH2CH3) bonded to a silicon atom, enabling dual reactivity.
The thiol functionality allows strong covalent bonding with metal surfaces, while the ethoxy groups undergo hydrolysis and condensation reactions, forming siloxane networks. This unique combination of properties makes it an indispensable silane coupling agent.
Synthesis and Chemical Properties
3-Mercaptopropyltriethoxysilane is synthesized via alkoxysilane functionalization processes. The introduction of the mercapto group enhances its chemical reactivity, allowing it to bond effectively with both organic and inorganic substrates.
Key Chemical Properties:
- Reactivity: The thiol group provides strong affinity for metal substrates, while the ethoxy groups enable hydrolysis and condensation to form silane bonds.
- Stability: Stable under ambient conditions but hydrolyzes in the presence of moisture to form silanols.
- Solubility: Soluble in organic solvents such as ethanol, toluene, and acetone.
Applications of 3-Mercaptopropyltriethoxysilane
Symb ChemTech’s 3-Mercaptopropyltriethoxysilane is extensively used across industries due to its dual reactivity and superior performance.
1. Rubber Vulcanization
The thiol group facilitates crosslinking during vulcanization, improving mechanical strength and elasticity in rubber products. Example: enhancing adhesion between rubber and metal reinforcements in automotive tires.
2. Surface Modification
As a silane coupling agent, MPTES modifies surfaces to enhance adhesion between dissimilar materials. It is particularly effective in:
- Glass coatings: Forms a durable interface between glass and polymers.
- Metal substrates: Promotes bonding for coatings, adhesives, and composites.
3. Adhesives and Sealants
MPTES improves the adhesion of epoxy, polyurethane, and acrylic adhesives to inorganic surfaces like metals and glass. Example: enhancing bond strength by up to 40% in polymer-metal applications.
4. Polymer Crosslinking
The compound acts as a crosslinking agent in silicone and polyurethane polymers, boosting mechanical properties and thermal stability.
Safety and Handling
To ensure safety, proper handling and storage of 3-Mercaptopropyltriethoxysilane are critical:
- Handling: Use in well-ventilated areas and wear appropriate personal protective equipment (PPE).
- Storage: Store in a cool, dry place away from moisture and direct sunlight to prevent hydrolysis.
- Safety Compliance: Refer to the Safety Data Sheet (SDS) for detailed guidelines.
FAQs
1. Is 3-Mercaptopropyltriethoxysilane compatible with epoxy resins?
Yes, it enhances adhesion and crosslinking in epoxy resin formulations.
2. Can MPTES be used for glass surface treatments?
Absolutely, it forms strong siloxane bonds with glass surfaces, improving durability and adhesion.
Contact Us
We guarantee consistent batch quality, fast shipping, and exceptional customer support.