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Technical Datasheet | Supplied by United Initiators
Di(tert.butyl) peroxide. It acts as an initiator (radical source) in the rheology modification of polyproylene and polymerization of ethylene. It appears as a colorless, mobile liquid, which is de-sensitized with high boiling aliphatic hydrocarbons and has a molar mass of 146.2 g/mol. In case of ethylene, it is recommended in combination with other peroxides. In case of CR (controlled-rheology) polypropylene, the degradation (e.g. in an extruder) lowers the molecular weight mean, and permits easier (re-) processing of the polypropylene. The melt flow index of the controlled rheology is dependent on the peroxide levels employed.
Product Type
  • Polymerization Initiators / Inhibitors / Catalysts > Polymerization initiators
  • Crosslinking Catalysts / Accelerators / Initiators > Organic Peroxides
Chemical Composition
Di(tert.butyl) peroxide
CAS Number
SpecialChem additionnal informations based on CAS Number : 110-05-4

Hansen Solubility Parameters

[14.5, 3.4, 5.4]
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with DTBP 30-AL. A practical determination of these HSP values would provide higher certainty. Learn More.

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