International name: Dioctyl Adipate

Synonyms: diisooctyl adipate, adipic acid dioctyl ester

Appearance: viscous viscous liquid without mechanical impurities

Chemical formula: CH3 (CH2) 7OOC (CH2) 4COO (CH2) 7CH3

Packing: eurocube / 1 ton, metal barrel, canister

Manufacturer: Poland

 

Plasticizers. general information

Plasticizers are substances that are introduced into the composition of polymer materials to impart (or enhance) elasticity and (or) plasticity during processing and operation. The plasticizers facilitate dispersion of the ingredients, lower the processing temperature of the compositions, improve the frost resistance of polymers, but sometimes impair their heat resistance. Some plasticizers can increase the fire, light and heat resistance of polymers.
General requirements for plasticizers: good compatibility with the polymer, low volatility, no odor, chemical inertness, resistance to extraction from the polymer by liquid media, for example, oils, detergents.
The most common plasticizers are esters, for example dioctyl phthalate, dimethyl phthalate, dibutyl phthalate, dibutyl sebacate, dioctyl adipate, dioctyl sebacate, diisobutyl phthalate, tri (2-ethylhexyl) phosphate, phthalic and trimellitic acid esters, orthophosphoric acid esters. Mineral and non-drying vegetable oils, epoxidized soybean oil, chlorinated paraffins, etc. are also used.
The amount of plasticizer in the composition is from 1 ... 2 to 100% (by weight of the polymer).
The main consumer of plasticizers is the plastics industry (about 70% of the total production of plasticizers is spent on the manufacture of plastic). Plasticizers are widely used in the production of nail varnishes.
Plasticizers are also surface-active additives, which are introduced into mortars and concrete mixtures (0.15 ... 0.3% by weight of binder) to facilitate laying in the mold and reducing the water content. This improves most of the characteristics of the solidified mixture, and also reduces cement consumption, reduces energy consumption when vibrating concrete (self-compacting mixtures) or leveling screeds (self-leveling self-leveling floor mixes).
A widely used plasticizer of this type is the sulphite-alcohol bard. Later, super- and hyperplasticizers with smaller dosages, as well as antifreeze, air-entraining and other useful properties were created.

 

Description

Dioctyl adipate is a low volatile high boiling point liquid, practically insoluble in water. Under normal conditions, it is resistant to hydrolysis. It dissolves in organic solvents, practically insoluble in water. This is an ester high-performance plasticizer for PVC, polyvinyl acetals, cellulose ethers, polystyrene, chlorinated rubber, acrylic and other synthetic resins. Gives the finished compositions frost, wear and light and light resistance. In the production of plastisols provides low viscosity and high viscosity stability.

Properties

Plasticizer DOA (Dioctyl adipate) is a low volatile high-boiling liquid, practically insoluble in water. Under normal conditions, it is resistant to hydrolysis. It dissolves in organic solvents, practically insoluble in water. This is an ester high-performance plasticizer for PVC, polyvinyl acetals, cellulose ethers, polystyrene, chlorinated rubber, acrylic and other synthetic resins. Gives the finished compositions frost, wear and light and light resistance. In the production of plastisols provides low viscosity and high viscosity stability.

 

Application

Plasticizer for PVC, with co-polymers and synthetic rubbers, the main characteristic of which is to give the final product excellent characteristics at low temperatures. Compared with the phthalate series is more harmless. . Dioctyl adipate (DOA) is included in the list of safe substances permitted for use in contact with food. Therefore, DOA is the most used plasticizer in the production of: films for food packaging, footwear, PVC profiles, cable, hoses, artificial leather, linoleum, children's toys, stretch ceilings, frost and light-resistant nitro-lacquers, many other everyday products. It is a highly effective plasticizer for PVC, polyvinyl acetals, cellulose ethers, polystyrene, chlorinated rubber, acrylic and other synthetic resins. It is most often used in combination with high molecular weight and complex phthalic esters.

 

Safety requirements

ethers of sebacic and adipic acid are classified as hazard class 3 according to GOST 12.1.007-76. Control over the state of the air environment - according to GOST 12.1.005-88. The production premises must be provided with supply and exhaust ventilation. When working with plasticizers, special clothes and personal protective equipment should be used in accordance with GOST 12.4.011-89. According to GOST 19433-88 "Cargo is dangerous. Classification and labeling »DOA belongs to class 9, subclass 9.2 (Cargoes with hazards, the manifestation of which poses a hazard only when transported in bulk by water transport), group 3.

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