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Application of a polyurethane catalyst in the synthesis of rigid polyurethane materials

A technology of polyurethane catalyst and rigid polyurethane, which is applied in the field of polyurethane material synthesis, can solve the problems of poor performance and low catalytic activity of polyurethane materials, and achieve excellent physical properties, reduce the degree of yellowing, and good bending 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 performance in catalytically synthesized polyurethane materials, so as to provide a kind of polyurethane material with high catalytic activity and prepared Environmentally friendly polyurethane catalysts with good physical properties for the synthesis of rigid polyurethane materials

Method used

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  • Application of a polyurethane catalyst in the synthesis of rigid polyurethane materials
  • Application of a polyurethane catalyst in the synthesis of rigid polyurethane materials
  • Application of a polyurethane catalyst in the synthesis of rigid polyurethane materials

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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, 2.5g pentamethyldiethylenetriamine, 1.5g N,N-dimethyl-1,3- Diaminopropane and 1g of stabilizer are dissolved in 35g of organic solvent and mixed uniformly. 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 high tensile strength, elasticity, aging resistance and other physical properties; besides, the catalyst does not contain any heavy metal element at all, is an environment-friendly catalyst, and is particularly applicable to the preparation of rigid polyurethane foamed plastic, a rigid polyurethane elastomer and a composite material thereof, as well as a polyurethane sole material; moreover, compared with the traditional catalyst, the catalyst, provided by the invention, has the advantages that the hydrolysis resistance is good, and the storage stability is obviously improved.

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): C08G18/22C08G18/18C08G18/20C08G101/00
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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