Speciality Chemicals

3-(Acryloyloxy)Propyltrimethoxysilane

  • CAS No.4369-14-6
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 3-(Acryloyloxy)Propyltrimethoxysilane (CAS 4369-14-6) is a premium silane coupling agent designed for acrylic systems. Ideal for adhesives, sealants, and coatings requiring superior mechanical property retention.

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Product Technical Details

Product Overview

3-(Acryloyloxy)Propyltrimethoxysilane is a highly specialized organofunctional silane coupling agent engineered for advanced industrial applications. This colorless transparent liquid serves as a critical bridge between inorganic substrates and organic polymers, facilitating robust chemical bonding in complex composite materials. With a CAS number of 4369-14-6, this compound is recognized for its exceptional reactivity and stability, making it a preferred choice for manufacturers demanding high-performance material solutions.

Our manufacturing process ensures a purity level exceeding 98.0%, guaranteeing consistent performance across batches. The molecule features a reactive acryloyloxy group capable of participating in free-radical polymerization, alongside hydrolyzable methoxy groups that form strong siloxane bonds with surfaces such as glass, metals, and minerals.

Key Performance Advantages

When compared to conventional methacryl silanes, 3-(Acryloyloxy)Propyltrimethoxysilane offers distinct advantages in specific formulation environments. The acrylate functionality provides faster cure rates and enhanced compatibility with acrylic resin systems. This results in improved mechanical strength and electrical property retention over time, even under harsh environmental conditions.

  • Superior adhesion promotion in acrylic-based coatings and sealants.
  • Enhanced mechanical property retention compared to methacryl analogs.
  • Excellent stability in free-radical cure mechanisms.
  • Effective surface modification for fibers and fillers.
  • Low viscosity allows for easy handling and integration into formulations.

Industrial Applications

This versatile coupling agent is utilized across a broad spectrum of high-tech industries. It is particularly effective in fiber-optic coatings where clarity and durability are paramount. In the construction sector, it acts as a key component in artificial marble and composite stone production, improving water resistance and structural integrity. Additionally, it is widely used in adhesives and sealants to ensure long-term bonding strength on difficult substrates.

Thermoplastic manufacturers also leverage this silane to modify surface properties, enhancing the compatibility between polymer matrices and mineral fillers. Whether used as a cross-linker or an adhesion promoter, this product delivers reliable performance in demanding applications.

Technical Specifications

Inspection ItemsStandardAnalysis Results
AppearanceColorless Transparent LiquidColorless Transparent Liquid
Purity (%)> 97.0098.50
Chromaticity< 3015
Density (p20°C)1.052 - 1.0621.057
Refractive Index1.4250 - 1.43501.4260
ConclusionQualified

Storage and Handling

To maintain optimal quality, 3-(Acryloyloxy)Propyltrimethoxysilane should be stored in a cool, ventilated place away from direct sunlight and moisture. Standard packaging includes 200 kg drums, though custom packaging solutions are available to meet specific logistical requirements. As a stabilized product, it offers extended shelf life when handled according to recommended safety guidelines. Our global supply chain ensures timely delivery with full documentation, including Certificate of Analysis (COA) and safety data sheets.