A kind of polyurethane catalyst and its application

A technology of polyurethane catalysts and compounds, applied in the direction of polyurea/polyurethane adhesives, polyurea/polyurethane coatings, adhesives, etc., can solve the problems of low catalytic activity and poor performance of polyurethane materials, and achieve excellent performance and excellent physical properties. , The effect of good aging resistance

Active Publication Date: 2018-02-23
JIANGSU OSIC PERFORMANCE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that in the prior art, catalysts that do not contain tin-based organometallic catalysts not only have low catalytic activity, but also have poor properties of the polyurethane materials synthesized by catalysis, thereby providing a polyurethane material with high catalytic activity and excellent physical properties. Environmentally friendly polyurethane catalyst with good performance

Method used

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  • A kind of polyurethane catalyst and its application
  • A kind of polyurethane catalyst and its application
  • A kind of polyurethane catalyst and its application

Examples

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Effect test

Embodiment 1

[0045] This embodiment provides a polyurethane catalyst, which is obtained by dissolving 1 g of sodium butyrate, 70 g of pentamethyldiethylenetriamine and 0.5 g of isooctyl phosphate in 28.5 g of an organic solvent at room temperature, and mixing them uniformly. In this embodiment, sodium butyrate accounts for 1 wt% of the polyurethane catalyst, and pentamethyldiethylenetriamine accounts for 70 wt% of the polyurethane catalyst.

[0046] The organic solvent described in this embodiment is n-pentane.

Embodiment 2

[0048] This embodiment provides a polyurethane catalyst. At room temperature, 40g sodium neodecanoate, 20g sodium salicylate, 3.5g pentamethyldiethylenetriamine and 1.5g N,N-dimethyl-1,3- Diaminopropane and dissolved in 35g of organic solvent, mix well. In this example, sodium neodecanoate and sodium salicylate account for 60 wt% of the polyurethane catalyst, and pentamethyldiethylenetriamine and N,N-dimethyl-1,3-diaminopropane account for 60% by weight of the polyurethane catalyst. 5% of the catalyst.

[0049] The organic solvent described in this embodiment is dimethyl ether.

Embodiment 3

[0051] This embodiment provides a kind of polyurethane catalyst, at room temperature, 1g sodium oleate, 5g2-dimethylaminopyridine, 50g potassium benzoate and 20g isooctyl alcohol polyoxyethylene ether phosphate are dissolved in 24g diethylamine, Mix well and serve. In this embodiment, sodium oleate accounts for 1 wt% of the polyurethane catalyst, 2-dimethylaminopyridine accounts for 5 wt% of the polyurethane catalyst, and potassium benzoate accounts for 50 wt% of the polyurethane catalyst.

[0052] The organic solvent described in this embodiment is dimethylamine.

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Abstract

A polyurethane catalyst comprises a sodium compound which is 1-60 wt% of the polyurethane catalyst, and a tertiary amine and / or pyridine compound. The sodium compound and the tertiary amine and / or pyridine compound achieve the synergistic effect; during the catalysis of the polymerization of isocyanate and polyalcohol, the speed of the polymerization reaction is increased; the prepared polyurethane material has excellent physical properties, does not contain any heavy metal element at all, is an environment-friendly catalyst, solves the technical problem about the guarantee of both the environmental protection safety and the catalytic efficiency of the polyurethane catalyst, and is particularly applicable to the preparation of polyurethane synthetic leather resin slurry, a polyurethane elastomer (prepolymer), a polyurethane coating, a polyurethane adhesive and a polyurethane composite material.

Description

technical field [0001] The invention relates to a catalyst, in particular to a catalyst for preparing polyurethane and the application of the catalyst, and belongs to the technical field of polyurethane material synthesis. 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 commonl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/22C08G18/18C08G18/20D06M15/564C09D175/04C09J175/04C08L75/04
CPCC08G18/161C08G18/163C08G18/168C08G18/1808C08G18/1825C08G18/2018C08G18/2036C08G18/225
Inventor 郭毅黄少娟吴斌张浩明万齐华周宇宇
Owner JIANGSU OSIC PERFORMANCE MATERIALS CO LTD
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