N,N-Dimethylcyclohexylamine is a low viscosity, medium active amine catalyst that can be used in a wide range of rigid foams. One of the main applications is insulative foam, spray, plate, glue laminate, on-site filling and refrigeration. N,N-dimethylcyclohexylamine is also suitable for the manufacture of rigid foam furniture frames and decorative parts.
N,N-dimethylcyclohexylamine is especially suitable for the preparation of two-component system. It can be dissolved in many hard foam polyols and additives. It has stable performance in the composition, no need to add organic tin, moderate activity, adjustable Sexual and long-term storage. In the large-capacity refrigerator combination, adding appropriate amounts of LCA-1 and LCA-3 can improve the flow properties of the foam. Generally, the amount of hard foam is about 3% of polyether, and auxiliary catalyst can also be added according to the requirements of the product. The product has ammonia and bitter taste, has a stimulating effect on the skin, has certain toxicity, and must be worn with protective equipment during production.
Dimethylcyclohexylamine DMCHA is a low viscosity, moderately active amine catalyst used in rigid foam, sheet, spray, and in-situ polyurethane rigid foam. The DMCHA catalyst has a catalytic effect on gelation and foaming. Dimethylcyclohexylamine provides a relatively balanced catalytic performance for the foaming reaction and gel reaction of the rigid foam, and moderately catalyzes the reaction of water with isocyanate. DMCHA It is a strong initial catalyst for the foaming reaction. DMCHA can be used as a separate catalyst, but is generally shared with other catalysts. Depending on the reaction rate and foam properties, the amount of DMCHA per 100 parts of polyether polyol is between 0.5 and 3.5 parts. In addition to being used for hard foams, dimethylcyclohexylamine DMCHA can be used as a co-catalyst for molding soft foams and semi-rigid foams.
In addition to being mainly used as a catalyst for rigid polyurethane foams, N,N-dimethylcyclohexylamine is also widely used in other applications: it is also used as a stabilizer for fuel oil to prevent oil slag formation; it is also 150-480 ° C. Stabilizing additive for petroleum fractions; also used as raw materials for medicines and pesticides, as fungicides, disinfectants, leveling agents and antistatic agents, etc.
The wide use of N,N-dimethylcyclohexylamine also has an environmental impact, so care should be taken to protect the environment when using N,N-dimethylcyclohexylamine.