Nouryon Trigonox 121 Thermoset NAR tert-Amyl peroxy-2-ethylhexanoate

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Nouryon Trigonox 121 Thermoset NAR tert-Amyl peroxy-2-ethylhexanoate
Categories:	Other Engineering Material
Material Notes:	Trigonox 121 is a high efficiency perester used for curing unsaturated polyester resins at slightly elevated temperatures. Suitable for curing unsaturated polyester, vinylester and acrylic thermosetting resins in the temperature range of 80-130°C. CAS number: 686-31-7 EINECS/ELINCS No: 211-687-3 Applications: Polymerization of (meth)acrylates: Trigonox 121 can be used to initiate the (co)polymerization of acrylates and methacrylates in the temperature range between 70°C and 120°C. Trigonox 121 can be applied in suspension as well as in solvent and bulk polymerization. Thermoset: Trigonox 121, tert-amyl peroxy-2-ethylhexanoate, is a perester which is used for the curing of unsaturated polyester resins at high temperatures. Trigonox 121 is preferred for the curing of UP resin based Hot Press Moulding formulations (such as DMC and BMC) in the temperature range of 120-160°C as such or as a kicker in combination wit a low reactive peroxide like e. g. Trigonox C or Trigonox 127. The low reactive peroxide must be included in the formulation in order to achieve a complete cure. Information provided by Nouryon
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Physical Properties	Original Value	Comments

Molecular Weight	230.3 g/mol
Storage Temperature	<= 5.00 °C

Thermal Properties	Original Value	Comments
Decomposition Temperature	35.0 °C	Self-Accelerating Decomposition Temperature

Processing Properties	Original Value	Comments
Shelf Life	3.00 Month

Descriptive Properties
Appearance	Clear liquid
Assay	= 95.0 %
Content	= 0.20 %	Hydroperoxides as TAHP
	6.60-6.95 %	Active oxygen

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PNOURY993 / 286516

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