Overview
Vinylmethyldimethoxysilane (VMDMS) is an organosilane compound with the chemical formula C5H12O2Si. It consists of a vinyl group, a methyl group, and two methoxy groups attached to a silicon atom. This compound is a colorless, clear liquid that is used as a silane coupling agent and a crosslinker in various industrial applications.
Chemical Formula: C5H12O2Si
Molecular Weight: 132.24 g/mol
CAS Number: 16753-62-1
Advantages
Improved Adhesion: VMDMS enhances the adhesion between organic polymers and inorganic substrates.
Crosslinking Agent: It acts as an effective crosslinking agent, improving the mechanical properties of materials.
Water Resistance: The use of VMDMS can improve the water resistance of treated surfaces and materials.
Versatility: It is compatible with a variety of polymer systems and can be used in many different industrial processes.
Applications
Adhesives and Sealants: VMDMS is used to improve the adhesion and durability of adhesives and sealants.
Coatings: It is employed in coatings to enhance adhesion, scratch resistance, and durability of the coating layer.
Plastics and Composites: In the production of plastics and composite materials, VMDMS acts as a coupling agent to improve the interfacial bonding between fillers and resin matrices.
Rubber Industry: Used in rubber formulations to enhance performance characteristics, such as tensile strength and elasticity.
Textile Treatments: VMDMS can be used in textile treatments to provide water repellency and improve fabric durability.
Frequently Asked Questions (FAQ)
Q1: What is the primary function of Vinylmethyldimethoxysilane? A1: VMDMS primarily functions as a silane coupling agent and crosslinking agent, enhancing adhesion and mechanical properties of materials.
Q2: How should Vinylmethyldimethoxysilane be stored? A2: VMDMS should be stored in a cool, dry place in tightly sealed containers. It should be kept away from moisture and incompatible substances.
Q3: Is Vinylmethyldimethoxysilane hazardous? A3: Yes, VMDMS can be hazardous. It should be handled with care, using appropriate personal protective equipment (PPE). It may cause skin and eye irritation and should not be inhaled.
Q4: Can VMDMS be used in water-based formulations? A4: VMDMS is generally hydrolyzed by water; therefore, it is more suitable for use in non-aqueous systems or under controlled conditions where hydrolysis can be managed.
Q5: What types of polymers are compatible with VMDMS? A5: VMDMS is compatible with a wide range of polymers, including polyethylene, polypropylene, and various thermosetting resins.
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