Antihydrolysis agent Stab I

It’s a monomeric carbodiimide antihydrolysis agent or hydrolysis stabilizers;it’swidely used in thermoplastic resins such as polyester polyurethane,PLA,PET/PBT,elastomers,adhesives and coating systems.as the antihydrolysis agent for PET,PBT,PA,CO-PET,PU,TPU,CPU,TPEE,EVA,PLA,PHA,PBS,PTT,it can extend the usage life of these polymers under hot and high humid conditions.

Composition: Monomeric carbodiimide

Chemical name: Bis(2,6-diisopropylphenyl)carbodiimide

CAS NO.: 2162-74-5

Synonyms:
Monomeric carbodiimide
Bis(2,6-diisopropylphenyl)carbodiimide;
Carbo D;
Staboxol 1;
N,N'-Methanediylidenebis(2,6-diisopropylaniline);
EINECS 218-487-5;
n,n'-bis(2,6-diisopropylphenyl)carbodiimide;
2,2',6,6'-Tetraisopropyldiphenylcarbodiimide;
N,N'-bis[2,6-di(propan-2-yl)phenyl]methanediimine;
Carbodiimide, bis(2,6-diisopropylphenyl)- (7CI,8CI);
N,N'-Methanetetraylbis(2,6-bis(1-methylethyl)benzenamine);
Benzenamine, N,N'-methanetetraylbis(2,6-bis(1-methylethyl)-;
Benzenamine, N,N'-methanetetraylbis[2,6-bis(1-methylethyl)-;
N-{N-[2,6-bis(propan-2-yl)phenyl]carboximidoyl}-2,6-bis(propan-2-yl)aniline;
Carbodiimide,bis(2,6-diisopropylphenyl)- (7CI,8CI);
N,N'-(2,2',6,6'-Tetraisopropyldiphenyl)carbodiimide;
N,N'-Bis(2,6-diisopropylphenyl)carbodiimide;

Molecular Formula: C25H34N2  

Molecular Weight: 362.55086  

Chemical structure:

Specifications:

  
Applications and characteristics:
It’s particular antihydrolysis agent for polyester-polyurethane elasomers also widely used in other thermoplastic resins such as PLA,PET/PBT,elastomers,adhesives and coating systems.as the antihydrolysis agent for PET,PBT,PA,CO-PET,PU,TPU,CPU,TPEE,EVA,PLA,PHA,PBS,PTT,it can extend the usage life of these polymers under hot and high humid conditions.

· it’s an acitve antihydrolysis agent for polyester polyurethanes;produced by hot casting as well as for adhesives based on polyester polyurethane;

· it’s normally being dissolved in the polyester polyol;alternatively, it may be added to the pre-polymer (only with terminal OH groups). An addition of 0.5 part by weight antihydrolysis agent monomeric carbodiimide I to 100 parts by weight  polyester polyol approximately doubles the resistance to hydrolysis;

· Additions of 2.0 parts by weight to otherwise unprotected polyester polyurethane elastomers increases their resistance to hydrolysis approximately four times. These data were given by tests, conducted at 70 °C and 80 % relative humidity.

· To be most effective, antihydrolysis agent Stab I should be added to the polyester polyol during the warming-up period, starting at a minimum temperature of 50 °C(120 °F), to a maximum temperature of 120 °C (250 ° F). As it does not disperse readily (it may float undissolved on the surface), it should be stirred intensively.

· Antihydrolysis agent Stab I may slightly accelerate the crosslinking reaction (polyester polyol/iscoyanate). This can be counteracted by adding a very small amount of an organic acid (e.g. citric acid).

Package:
180kgs/iron drum or as customer’s request;

Storage:
Stock it in dry,cool,well-ventilated shady place in original closed containers;

Shelf life:
1 years at least if stock in above conditions;