Amine catalyst for polyurethane foam and preparation method of amine catalyst

Abstract

The invention discloses an amine catalyst for polyurethane foam. The amine catalyst comprises the following raw materials in percentage by weight: 30-40% of dipropylene glycol, 25-35% of a ZF10 catalyst, 10-20% of an aldehyde remover and 10-18% of an assistant. The amine catalyst for polyurethane foam disclosed by the invention has high catalytic activity and is capable of facilitating rapid completion of a polymerization reaction between isocyanate and polyether polyol under the same reaction condition; and the prepared polyurethane slurry is excellent in physical properties, has higher elongation at break and higher tensile strength and breaking strength at the elongation of 100% and 300%, and is excellent in formaldehyde degradation effect, safe and environment-friendly.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an amine catalyst for polyurethane foam and a preparation method thereof. Background technique [0002] Polyurethane is a general term for polymer compounds containing repeated carbamate groups in the main chain. This polymer material can be used to manufacture rubber, rigid and flexible foam plastics, adhesives, coatings, paints and other products. Its excellent wear resistance, impact resistance, UV resistance and high and low temperature resistance are widely used in construction, automobile, light industry, textile, petrochemical, metallurgy, electronics, national defense, medical, machinery and many other fields. [0003] Polyurethane materials are made of polyisocyanates, polyols and other stabilizers as raw materials, and are prepared by catalytic reactions of catalysts at a certain temperature. A type of catalyst commonly used in the synthesis of polyurethane materials is...

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Problems solved by technology

[0003] Polyurethane materials are made of polyisocyanates, polyols and other stabilizers as raw materials, and are prepared by catalytic reactions of catalysts at a certain temperature. A type of catalyst commonly used in the synthesis of polyurethane materials is metal organic compounds. This type of organometallic catalyst was first Organic compounds of lead and mercury, but because lead and mercury are heavy metals, they are harmful to the human body and cause serious environmental pollution, they have been listed as prohibited products, and the existing catalysts have a single purpose and limited application range. Products often need to add a variety of catalysts. When other special auxiliary functions are required, it is often necessary to add some other high-priced auxiliary materials to assist, especially in the production of automobile seat cushions. Because the catalysts and auxiliary materials used are single in function and high in cost, The smell is heavy, so that the free formaldehyde in the polyurethane remains in the polyurethane product, which has a strong smell and is not environmentally friendly

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