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Silane coupling agent is mainly used as crosslinking agent and tackifier in wires, cables and pipes, which can bring the materials with the following properties:

  • Improve thermal deformation stability and mechanical strength;
  • Improve wet electrical properties;
  • Improve chemical resistance;
  • Increase filler addition and improving processability.

Vinyl silanes are the most commonly used crosslinking agents in polyolefin materials.They can be grafted with polyolefin or copolymerized with olefin at higher temperature. The alkoxy functional groups of silanes can undergo intermolecular condensation reaction after hydrolysis in wet environment.



When produce low smoke halogen-free cable materials, such as blends of EVA, EVA and polyolefin, EP rubber, EPDM rubber and polyolefin, if flame retardants are aluminum hydroxide (ATH), magnesium hydroxide (MH), calcined clay, calcined talc powder, calcined kaolin, alumina hydrate (AlOH) or aluminum phosphate. Silane coupling agent is often used as the surface modifier to improve the dispersion of fillers and the adhesion with resins, improve the processability, mechanical properties and thermal stability of the filled substrates.


Besides functional silanes, Siwin also offers vinyl silane oligomers and dispersing agent specially designed for wires, cables and pipes.

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