VPS 1178

VPS 1178 is a monomeric multifunctional product, that contains

  • reactive secondary amino groups
  • reactive styrenic double bonds
  • antistatic cationic centers
  • and hydrolyzable silylmethoxy groups.

The dual nature of its reactivity allows VPS 1178 to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), thus functioning as an adhesion promoter and as a surface modifier. VPS 1178 is a dark yellow to brown liquid and contains 40-42% active ingredient and about 58-60% methanol. To improve the solubility of VPS 1178 in water, organic or mineral acids can be used as a catalyst.

Typical Applications

VPS 1178 is a mulitfunctional organic compound in which the silanol groups can be bonded to an inorganic substrate and the organophilic amino groups can interact with a suitable polymer or resin.
Examples of suitable inorganic substrates are:
  • glass, glass fibers, glass beads and glass wool
  • mineral wool
  • metals
  • and various fillers like quartz, wollastonite or ATH.

Examples of suitable polymers or resins are:
  • Thermosets like epoxy, phenolic, furanic and melaminic resins
  • Thermoplastics like PA, PBT, EVA, PPS, MAPE, MAPP, PVB, acrylates
  • Elastomers like silicones.

VPS 1178 finds application in many industries. Advantages arise in water-based systems. Examples are:
  • as a size constituent of glass fiber/glass fabric composites or mineral wool insulating materials
  • as a primer or additive for sealants and adhesives
  • as a pretreatment or an additive to mineral-filled thermoplastic compounds
  • as a glass and metal primer
  • as a primer and/or additive for paints and varnishes to improve adhesion to the substrat.

Benefits at a glance

VPS 1178 may be used for substrate pretreatment as an approx. 0,2-2 wt.% solution in organic solvents or as a constituent of an aqueous size.
Important product effects that can be achieved by the use of VPS 1178 are:
Improved mechanical properties: e.g.
  • flexural strength
  • tensile strength
  • impact toughness
  • modulus of elasticity.

Improved electrical properties: e.g.
  • dielectric constant
  • specific volume resistance.

Improved temperature stability at the inorganic/organic interphase
  • >300°C.

VPS 1178 may also be used to improve processing properties such as
  • better polymer wetting
  • elongated gelation time of resins
  • immediate solubility in water
  • lower turbity in water solution
  • organic and inorganic reactivity for coupling

Product Details

Technical Data Sheets

Further Information

Storage:

It is recommended to store VPS 1178 above 4°C.

Packaging:

VPS 1178 is supplied in 24 kg and 160 kg drums.

Shelf life:

VPS 1178 has a shelf life of at least 12 months from delivery in an originally sealed drum.