Chemical name: tert-Butyl peroxy-2-ethylhexyl carbonate
Another name: tert-Butyl peroxy-2-ethylhexyl carbonate, TBEC, TBPEHC
CAS No.: 34443-12-4
Molecular formula: C13H26O4
Molecular-weight: 246.3
Brief introduction：
TBEC is a colorless transparent liquid, which is mainly used as a co- initiator for the polymerization and co-polymerization of ethylene, polystyrene, butadiene, acrylate and methacrylate.
1.Polymerization of polystyrene
TBEC can be used for the polymerization and co polymerization of polystyrene in the temperature range of 100-130℃. in a mass process, TBEC can be advantageously used to increase polymerization rates.
2. Polymerization of acrylates and methacrylates
TBEC 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.
TBEC can also be applied as an initiator for the bulk and suspension (co)polymerization of acrylates and methcrylates.
3. Peroxides for Thermoset Resins
TBEC can be used for curing aliphatic unsaturated polyester at high temperature. It is the preferred curing agent (SMC, BMC, ZMC, etc.) for up resin hot molding
process. The temperature range is 120-170 ℃, and the product has good tolerance, safety and environmental protection.
Main quality index
SN | item | Specification |
1 | appearance | Colorless Transparent Liquid |
2 | Assay(%) | Min. 95.0 |
3 | active Oxygen content(%) | Min. 6.30 |
4 | Content of TBHP(%) | Max. 0.10 |
5 | Chroma | < 50 Pt-Co |
6 | Inorganic and organic hydrolyzable chloride（mg/kg） | 100 max |
Chemical properties
SN | item | Specification |
1 | State | Liquid |
2 | Density(g/cm3) | ~0.928 |
3 | Freezing point(°C) | -50 |
4 | Theoretical active Oxygen content(%) | 6.49 |
Safety data
SN | item | Index |
1 | SADT(°C) | 60 |
2 | Alarm Temp(°C) | 55 |
3 | UN-No | 3105 |
Half Life data(measured in chlorobenzene solution)
SN | Item | Index |
1 | Activation Energy Ea(KJ/mole) | 151.72 |
2 | 10 hr.Half Life Temp | 98 |
3 | 1 hr.Half Life Temp | 117 |
4 | 1 min.Half Life Temp | 137 |
Solubility: insoluble in water
Package: 20kg,PE bucket Packaging.It can also be packaged according to the specifications required by users.
Storage: store in cold storage below 20 °C. Keep the package closed and well ventilated. The maximum storage temperature is 25 ℃. Avoid mixing with reducing agents such as amines, acids, alkalies and heavy metal compounds (accelerators and metal soaps). It is strictly prohibited to repack and take them in the warehouse.
Safety precautions:
(1) Keep away from kindling, open flames and heat sources.
(2) Avoid contact with reducing agents (such as amines), acids, bases and heavy metal compounds (such as accelerators, metal soaps, etc.)
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