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In room-temperature-vulcanized (RTV) silicone rubber formulations, the choice of coupling agent directly affects adhesion to substrates, water resistance, and mechanical properties. IOTA 5040 Monochloromethyl Chlorosilane is a key starting material for the preparation of RTV silicone rubber coupling agents. Through esterification with alcohols, it can be efficiently converted into various functional alkoxysilane coupling agents, providing a reliable adhesion solution for sealants, adhesives, and coating materials.
IOTA 5040 is a high-purity chloromethyl chlorosilane monomer with high chemical reactivity. It rapidly hydrolyzes and crosslinks upon contact with water, releasing hydrogen chloride. It is mainly used for esterification with alcohols to produce reactive alkoxysilanes and is a core precursor for coupling agents used in RTV silicone rubber.
| Feature | Application Value |
|---|---|
| Precursor for RTV coupling agents | Upon esterification, produces amino, epoxy, vinyl, and other silane coupling agents – improves adhesion of RTV silicone rubber to glass, metal, and plastic |
| High esterification efficiency with alcohols | Mature reaction pathway, controllable process – suitable for industrial production |
| Flexible molecular design | Different alcohols (methanol, ethanol, isopropanol, etc.) can be selected to customize alkoxy types |
| Stable supply | Standardized packaging (10L/20L/200L plastic drums) – custom sizes available on request |
| Traceable batches | Strict quality control ensures consistency of downstream coupling agent performance |
| Parameter | Value |
|---|---|
| Molecular Formula | CH₂Cl₄Si |
| CAS No. | 1558-25-4 |
| Appearance | Colorless transparent fuming liquid |
| Boiling Point | 116.5°C |
| Density (20°C) | 1.4776 g/cm³ |
| Reaction Characteristics | Vigorous reaction with water – releases HCl |
IOTA 5040 + Alcohol → Functional alkoxysilane → RTV silicone rubber coupling agent → Sealants / Adhesives / Coatings
Strictly avoid moisture: Prevent contact with water during storage and use
Good ventilation: Reaction releases hydrogen chloride gas – operate in a fume hood or well-ventilated area
Personal protective equipment: Wear acid-resistant gloves, goggles, and protective clothing during handling
Packaging options: 10L, 20L, 200L plastic drums – suitable for R&D trials to industrial production scales
| Item | Information |
|---|---|
| Packaging Options | 10L, 20L, 200L plastic drums (other sizes available on request) |
| Storage Conditions | Store in a clean, dry, cool, well-ventilated area away from moisture |
IOTA 5040 – From intermediate to coupling agent, providing a solid adhesion foundation for RTV silicone rubber.
