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Silane coupling agent(KBE-903,KBM-603,KBM-403,KBM-503,KBM-1003,KBC-1003)

  • Silane coupling agent KBM-1003
  • Silane coupling agent KBM-1003

    Silane coupling agent KBM-1003

  • Product description: Silane coupling agent KBM-1003,Chemical Name: Vinyltrimethoxysilane CAS No.: 2768-02-7 INECSNo.: 220-449-8 Formula: C5H12O3Si
  • Chemical Name: Vinyltrimethoxysilane

    CAS No.: 2768-02-7

    INECSNo.: 220-449-8

    Formula: C5H12O3Si

    Appearance: Colorless transparent

    liquid Density(ρ20, g/cm3): 0.9718 ± 0.0050

    Refractive Index(n25D): 1.3925 ± 0.0050

    Purity 98%

    Applications and Performance

    Polymer Modification
    QP-027 is used to modify polyethylene and other polymers by grafting its vinyl group to the polymer backbone
    using a radical initiator, such as peroxide. This provides a polymer with pendant trimethoxysilyl groups that may
    be used as moisture-activated crosslinking sites via hydrolysis of the alkoxy groups followed by condensation
    of the resulting silanols.
    Crosslinking of Silane-Grafted Polymers.
    The reaction of Silane-grafted polyethylene to form a crosslinked or vulcanized polyethylene uses water to form
    the crosslinks. This technology is widely used around the world for commercial applications in wire and cable
    insulation, tubing, and other similar uses.
    The basic reaction sequence is as follows: polyethylene is reacted (grafted) with vinyltrimethoxysilane, using a
    peroxide initiator, in an extruder. The grafted polyethylene is then formed into a finished product, such as cable
    jacketing, wire insulation, or pipe. The forming step is usually done by a second extrusion, during which a
    catalyst for the moisture-cure step is added. Finally, the formed article is exposed to moisture or hot water to cause hydrolysis of the Silane and condensation to form crosslinks via Si-O-Si bond formation.
    Benefits of Crosslinking
    Higher maximum use temperature
    Reduced deformation under load (creep)
    Improved chemical resistance
    Superior environmental stress crack resistance
    Increased abrasion resistance
    Improved impact strength
    Memory characteristics (shrink film, tubing)
    Improved impact strength
    Advantages of Silane Crosslinking over Radiation or Peroxide Crosslinking
    Low capital investment
    Low operating (energy) costs
    Higher productivity
    Processing versatility
    Thick, thin, or variable thicknesses possible
    Complex shaps possible
    Wilder processing latitude (control of premature crosslinking)
    Useful with filled composites
    Applicable to all polyethylene densities and copolymers.


    The regular packing of this product is 25kg plastic pail, 200L steel drums and 1000L immediate bulk container.

    Storage and Shelf Life

    Should be stored in dry, cool, ventilated room; keep away from water, moisture, high temperature and fire. This product has a shelf life of at least 12 months if stored in tightly closed original container at room temperature.

    If this product is kept beyond the shelf life recommend on the product label, it is not necessarily unusable, but a quality control should be performed on the properties relevant to the application.