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Adhesives Ingredients

VQX -221

Technical DataSheet | Supplied by Gelest

Vinyl functional polymer. Acts as reinforcing agent. This clear dispersion is employed in addition cure (platinum cure) which provides an extremely flexible basis for formulating silicone elastomers. The vinylmethylsiloxane copolymers are mostly employed in peroxide activated cure systems which involve peroxide induced free radical coupling between vinyl and methyl groups. In VQX -221 the formulation of addition cure silicones must address the strength, hardness, temperature of cure, work time (speed of cure), shelf life, consistency and compounding. It does not form any by product which allows fabrication of parts with good dimensional stability. The use of peroxide activated cure chemistry for vinylmethylsiloxanes is well established for gum rubber stocks, its use is growing in new applications that are comparable to some peroxide cure acrylic systems. Its relatively low viscosity is employed as grafting additives to EPDM elastomers in the wire and cable industry to improve electrical properties. It is also used in sealants and encapsulants applications.

VQX -221 Product details

Product Type
xxxxxxxxxxx
Chemical Composition
xxxxxxxxxxxxxxxxxxxxxxxx
CAS Number
68584-83-8
Physical Form
Dispersion
Product Status
xxxxxxxxxx
Applications/ Recommended for
  • xxxxxxxxx
  • xxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxxxxx
Labels/Agency Rating
xxxxxxxxxxxxxx

VQX -221 Properties

Property

Value & Unit
Test Condition
Test Method
Base (in xylene)
xx %
Vinyl
xxxxxxxxx eq/kg
Density
xxxx
Q-resin
xxxxxxx %
Last edited Dec 18, 2017
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