Acetyl tributyl citrate [C20H34O8],?
Acetyl tri-n-butyl citrate, Chinese alias acetyl tributyl citrate, English name acetyl tributyl citrate, also That is ATBC, the English alias is tributyl ester; acetyl tri-n-butyl citrate. The CAS number is NO.77-90-7, the molecular formula is C20H34O8, and the molecular weight is 402.48 (according to the five-digit significant atomic weight provided by IUPAC in 1995). The properties of ATBC plasticizer are: colorless, odorless oily liquid, boiling point 343℃ (0.101MPa), flash point (open cup) 204℃, freezing point -80℃, evaporation rate 0.000009g/cm2?h (105℃) , hydrolysis rate 0.1% (100℃, 6 hours), soluble in most organic solvents, insoluble in water. Compatible with polyvinyl chloride, polystyrene, vinyl chloride-vinyl acetate polymer, nitrocellulose, polyvinyl butyral and other resins. Partially compatible with cellulose acetate and cellulose acetate butyrate. The cold resistance and light resistance of this product are similar to tri-n-butyl citrate, but the water resistance is better. Non-toxic, LD50=4000mg/kg.
The uses of ATBC are: This product is a non-toxic plasticizer that can be used as a plasticizer for polyvinyl chloride, cellulose resin and synthetic rubber. Used for non-toxic PVC granulation, food packaging containers, children's toy products, medical products, films, sheets, cellulose coatings and other products. It can also be used as a stabilizer for polyvinylidene chloride.
Acetyl tri-n-butyl citrate has been widely used in foreign food packaging industries and is currently licensed for use in food packaging materials in the United Kingdom, the United States, Germany, France, the Netherlands, Italy, and Japan. Acetyl tri-n-butyl citrate is mainly used to plasticize polyvinyl chloride and vinyl chloride, vinylidene chloride polymer (Saran resin). In addition to being widely used in the packaging of fresh meat and its products abroad, polyvinyl chloride films are also used in the packaging of sandwiches, cheese, bacon, chicken, duck, ham, ham products, and fresh vegetables such as mushrooms. The polyvinyl chloride film has greater oxygen permeability and can maintain red oxygen myoglobulin to keep meat fresh. Its surface is shiny and transparent, so the food inside the packaging bag can be clearly seen. It has moderate water permeability and high carbon dioxide gas permeability, which can reduce the dehydration of fresh vegetables and extend the shelf life of vegetables. In addition, it also has good sealing properties. In contrast, polyethylene film has the disadvantage of being difficult to seal after meat packaging. Another main use of acetyl tri-n-butyl citrate is to plasticize Saran resin. The biggest advantage of Saran film is good sealing, excellent moisture resistance and extremely low air permeability. It is resistant to strong acids, strong alkali, grease and organic matter. Solvent. In terms of mechanical properties, it is a strong and tough film material between soft PVC and hard PVC. It has outstanding thermal shrinkage. It starts to shrink at 50~60℃, and the shrinkage rate reaches 20%~50% at 100℃. The highest shrinkage stress at 80℃ is 13~15kg/cm3. It has strong self-adhesiveness and high sealing strength during high-frequency heat sealing. Therefore it is an excellent food packaging material. Abroad, it has been widely used to package fish, sausages, ham, meat products, cheese, smoked products, tofu, cakes and other foods that require long-term preservation or high freshness. The main plasticizer of this plastic film is Acetyl tri-n-butyl citrate.
To sum up, acetyl tri-n-butyl citrate is a non-toxic plasticizer with excellent performance. It is widely used in the pharmaceutical industry, medical device industry, food packaging and ink industry abroad. , In view of the potential carcinogenic threat of di(2-ethylhexyl) phthalate, it is recommended to promote the application of acetyl tri-n-butyl citrate in the fields of medicine, medical equipment, food packaging, and ink manufacturing in China