2,5-Dimethyl-2,5-di-tert-butylperoxypropargyl-3
Trade name: initiator BPDY
English name: 2,5-Bis(tert-butyl peroxy)-2,5-dimethylhexyne-3
Chemical name: 2,5-Dimethyl-2,5-di-tert-butylperoxyalkyn-3
Chemical structural formula:
Molecular formula: C16 H30 O4
Molecular weight: 286.4
Theoretical active oxygen content: 11.17%
CAS No.: 1068-27-5
UN No. 3113
Einecs : 213-944-5
Main decomposition products: tert-butanol, 2,5-dimethyl-2,5-perynediol, methane, acetone, etc.
Sea freight (IMDG): 5.2 - 01 Packing Group II, Class C liquid peroxides. Packing Group II Dangerous Goods.
Properties: This product is a slightly yellow transparent liquid, can be diluted with odorless mineral oil, isododecane and other preparations. Or it can be diluted with the solvent specified by the customer. It can also be diluted with inorganic compounds or polypropylene powder.
Line dilution, insoluble in water, soluble in most organic solvents, specific gravity (200C) 0.880, now provides 85% mineral oil blending products, 40%, 50% with neutral filler blending products.
Security indicators:
Half-life:
0.1 hours: 164°C
1 hour: 141°C
10 hours: 121°C
Thermal stability data:
Self-accelerated decomposition temperature (SADT): 80°C
Critical temperature (Tem): 75°C
Control temperature (Tc): -
Storage temperature (Tsmax): 10/30 °C
Activation energy E (KJ/mol): 150.67
Technical standards:
Appearance : Clear liquid
Content: 852%
Chromaticity: 100 Pt-Co max
Content of tert-butyl hydroperoxide and 2,5-dimethyl-2,5-di-tert-butyl hydroperoxide : 0.4%max
Uses.
1. Polymer crosslinker: It is a kind of organic peroxide crosslinker which can be widely applied to many kinds of polymers, especially suitable for polyethylene (LDPE, HDPE), ethylene/vinyl acetate copolymer.
(EVA) polymerization crosslinking agent, crosslinking temperature of 1850C or more, the amount of 0.5%-3.8% (W/W).
2. It is an excellent degradation agent for polypropylene degradation: it can be made into rheological polypropylene with low molecular weight and narrow molecular weight distribution and high melt index, and it can be used as high speed spinning material, coating material, film material and casting plastic.
To initiator.
3 is a styrene polymerization and copolymerization initiator. Polymerization temperature over 30-185 0C
Packaging and Transportation:
The standard packing of our factory is 20kg polyethylene packing, and we can also supply according to the packing size required by the customers, who can put forward the requirements at the time of ordering.
Storage Precautions.
1. Store in a cool and ventilated space with a temperature not exceeding 300C.
2. Keep away from fire and heat source. It should be stored separately from acids, reducing agents, flammables, combustibles and reducing agents.
3. The lighting and ventilation of the storage room and other facilities are of explosion-proof type, and the switch is located outdoors.
4. When handling, it should be put down carefully and gently to prevent the damage of package and container, prohibit impact and oscillation, and pay attention to personal protection in the packing and handling operation.
5. Please read our "MSDS" carefully when storing, transporting and using the product.
Product expiration date:
In strict accordance with the manufacturer's prompt conditions of storage, transportation. The quality of the product can be guaranteed within three months.
Fire protection:
1, the product may be due to heat and violent decomposition, will be violent fire, a small amount of product small fire should be quickly extinguished with foam or dry powder fire extinguisher.
2, the fire should be quickly withdrawn to a safe distance away and use the water gun park rescue, notify the fire department to deal with.