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Adhesives Ingredients

PVV -3522

Technical DataSheet | Supplied by Gelest

Vinylphenylmethyl terminated vinylphenylsiloxane - phenylmethylsiloxane copolymer. It 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. PVV -3522 crosslinks with dicumyl peroxide. 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.

PVV -3522 Product details

Product Type
  • xxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxx
Chemical Composition
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CAS Number
68037-82-1
Product Status
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Applications/ Recommended for
  • xxxxxxxxxxxxxxxxxxxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxxxxx
Labels/Agency Rating
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PVV -3522 Properties

Property

Value & Unit
Test Condition
Test Method
Phenylmethylsiloxane
xxxxxxx mol %
Viscosity
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Molecular weight
xxxxxxxxxx
Refractive index
xxxxx
Density
xxxx
Last edited Dec 18, 2017
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