Categories
TBPB
Categories：
Organic Peroxides
Email:icason@icason.com
Technical Data Sheet
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Molecular formula |
C11H14O3 |
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Molecular weight |
194.23 |
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CAS NO. |
614-45-9 |
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UN NO. |
3103 |
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CN NO. |
52076 |
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EINECS. |
/ |
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Chemical name |
tert-Butyl peroxy benzoate |
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Prepared By |
ICASON PM |
REVISION：2010 |
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Approved By |
PRODUCTION SPECIFICATION |
Valid From：2010-10-1 |
Specification
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Items |
Standard value |
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Appearance |
Clear or light yellow liquid |
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Color,APHA |
100 Max |
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Assay,(%wt) |
98.5 Min |
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Total Hydrolysable Chloride,(%wt) |
0.01 Max |
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Refractivity |
1.495-1.505 |
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TBHP,(%wt) |
0.1 Max |
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Acidity, (%wt) |
0.1 Max |
Physical properties
Density, 20℃ : 1040 kg/m3
Viscosity, 20℃ : 6 mPa.s
Freezing point : approx. 8℃
Boiling point…………………124℃
Half Life Data
Activation Energy…………33kcal/mole
10hr.Half Life Temp.…………………105℃
1hr.Half Life Temp.…………………125℃
1min.Half Life Temp.…………167℃
Safety data
Thermal decomposition Temp.……60℃
Flash point…………………Open 65℃/ Shut 19℃
SADT……………………………63℃
Tem………………………………55℃
Package and Storage:
Standard packaging size for TBPB is 25 kg net.
Storage in dry and ventilative warehouse, avoid rain, moisture. Away from fire and heat, avoid exposure, with no direct contact with the acid or mixed.
Application
• Polymerization of styrene
TBPB can be used for the polymerization and copolymerization of styrene in the temperature range of 100-140℃. During polymerization the temperature is increased in steps.
• Polymerization of acrylates and methacrylates
TBPB can be used as initiator for the solution (co)polymerization of acrylates and methcrylates in the temperatures range of 100-170℃, amongst others for the coatings.
TBPB can also be applied as an initiator for the bulk and suspension (co)polymerization of acrylates and methcrylates.
• Polymerization of ethylene
TBPB is an efficient initirtor for the ethylene polymerization under high pressure in both autoclave and tubular processes.
To obtain a wide spectrum of polymerization temperatures, combinations with other peroxides are applied in practice.
Depending on reaction conditions. TBPB is active in the temperature range of 220-270℃.
• Other applications
TBPB can also be used for the (co)polymerization of acrylonitrile and vinyl acetate.
• Crosslinking Peroxides
TBPB,is suitable for crosslinking of EPDM rubber compounds at ambient temperature within some weeks.
Rubber compounds containing TBPB have moderate processing safety in combination with a very high speed of cure.
• Peroxides for Thermoset Resins
TBPB, tert-butyl peroxybenzoate, is an aromatic perester, which is used for the curing of unsaturated polyester resins at elevated temperatures.
TBPB is preferred for the curing of UP resin based Hot Press
Moulding formulations (SMC, BMC, ZMC etc) in the temperature range of 120 - 170℃
Key words:
Organic peroxides
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