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PEROXAN CU-80 L
Hydroperoxide / Polymerization / Curing / Crosslinking
Cumyl hydroperoxide
80%,
Solution in cumene
PEROXAN CU-80 L is used for the copolymerization of styrene/butadiene (SBR rubber) and acryl nitrile/butadiene/styrene (ABS rubber) as well as for the emulsion polymerization of (meth-)acrylates and acrylic resins dispersions.
TDS HP
PEROXAN CU-80 L is used for the curing of unsaturated polyester resins and vinylester resins.
TDS UP
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PEROXAN CU-80 L
Molecular weight:
CAS No.:
152.2
80-15-9
Appearance:
Peroxide assay:
Active oxygen assay:
Density at 20°C:
clear, colourless or light yellow liquid
appx. 80%
appx. 8.41%
1.04 g/cm³
in chlorobenzene:
Maximum storage temperature (Ts max):
Minimum storage temperature (Ts min):
Storage stability as from date of delivery:
30°C
0°C
6 months
Keep packaging tightly closed in a well ventilated place at indicated storage temperature. Keep away from reducing agents e.g. amines, acids, alkalis, heavy metal compounds (e.g. accelerators, driers, metal soaps). Never weigh out in storage room.
Oxidizing agent. Decomposes violently under the influence of heat or by contact with reducing agent. Never mix with accelerators.
Organic Peroxides are more or less stable products but will decompose under the influence of heat. To minimize a loss of quality during storage, it is important that the recommended maximum storage temperature is not exceeded. If a minimum storage temperature is given, an undesirable process such as a solidification or phase separation, is known to occur below this temperature.
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Flash point: SADT: |
>SADT°C 80°C |
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The SADT (Self Accelerating Decomposition Temperature) is the lowest temperature at which a self accelerating decomposition may occur.
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Schlavenhorst 71 D-46395 Bocholt Germany |
Phone: +49 (0)2871 / 99 02-0 Fax: +49 (0)2871 / 99 02-50 www.pergan.com |
HPUPCL/004/0222 Page 1 of 2 |
PEROXAN CU-80 L
Hydroperoxide / Polymerization / Curing / Crosslinking
Copolymerization of styrene/butadiene (SBR rubber) and acryl nitrile/ butadiene/styrene (ABS rubber):
The emulsion polymerization can be initiated through a redox mechanism at low temperatures. Suitable reducing agents are Fe-salts, sulphites, dithionites, etc.
Temperature range: 5 to 20°C
Dosing: 0,1 to 0,3 phr
Polymerization of (meth-)acrylates and acrylic resins dispersions:
The emulsion polymerization can be initiated through a redox mechanism at low temperatures. Suitable reducing agents are Fe-salts, sulphites, dithionites, ascorbinic acid or sugar, etc.
Temperature range: 50 to 80°C
Dosing: 0,1 to 0,5 phr
PEROXAN CU-80 L is used for the curing of unsaturated polyester resins.
Without the addition of an accelerator the polymerization starts only above the activation temperature of 90°C. For the cure at lower temperature PEROXAN CU-80 L must be accelerated by cobalt or vanadium. Together with Cobalt accelerators the gel time at room temperature is very long and is therefore particularly suitable for those applications where a long production time is required, for instance in the production of large parts and in filament winding. Sufficiently fast gel an cure times are only obtained above 35°C.
Together with vanadium accelerators PEROXAN CU-80 L gives a short gel time and a fast cure at room temperature. This can be improved further by adding a special promotor like pyruvic acid.
With such a system it is possible to get a fast cure of UP resins, even at low temperature. Also for resins like vinylester resin, these combinations are very suitable.
Depending on working conditions, the following peroxide and accelerator dosage levels are recommended:
PEROXAN CU-80 L: 1,0 to 3,0 phr
PERGAQUICK C12 X (Cobalt, 1%): 0,5 to 3,0 phr
Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use and handling of PEROXAN CU-80 L. This information should be thoroughly reviewed prior to acceptance of this product. The MSDS is available for downloading at www.pergan.com or through contacting Pergan directly.
|
Schlavenhorst 71 D-46395 Bocholt Germany |
Phone: +49 (0)2871 / 99 02-0 Fax: +49 (0)2871 / 99 02-50 www.pergan.com |
HPUPCL/004/0222 Page 2 of 2 |
Material Safety Data Sheets
Here you can download safety data sheets according to Regulation (EC) no. 1907/2006.
Safety Data Sheets are an important source of information on chemicals, such as identity of the product,
occurring hazards, transport, safe handling and measures for prevention in case of danger