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Application of polyurethane catalyst in synthesis of flexible polyurethane foamed plastic

A polyurethane catalyst and soft polyurethane technology, which is applied in the field of polyurethane material synthesis, can solve the problems of low catalytic activity and poor performance of polyurethane materials, and achieve reduced yellowing, low indentation hardness, elongation and rebound rate big effect

Active Publication Date: 2015-04-29
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 material synthesized by catalysis, thereby providing a polyurethane material with high catalytic activity and the physical properties of the prepared polyurethane material. Environment-friendly polyurethane catalyst with good performance for the synthesis of flexible polyurethane foam

Method used

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  • Application of polyurethane catalyst in synthesis of flexible polyurethane foamed plastic
  • Application of polyurethane catalyst in synthesis of flexible polyurethane foamed plastic
  • Application of polyurethane catalyst in synthesis of flexible polyurethane foamed plastic

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Embodiment 1

[0044] 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.

[0045] The organic solvent described in this embodiment is n-pentane.

Embodiment 2

[0047] 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- Dissolve diaminopropane in 35g of organic solvent and 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.

[0048] The organic solvent described in this embodiment is dimethyl ether.

Embodiment 3

[0050] 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.

[0051] 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, has no volatile organic compound ingredient, is an environment-friendly low-odor catalyst, reduces the catalyst harm while achieving the catalytic effect of a non-environment-friendly catalyst in the prior art, and can be used for preparing a high-resilience polyurethane flexible sponge, a low-resilience polyurethane flexible sponge and other polyurethane flexible sponges; the obtained polyurethane flexible sponge / flexible polyurethane foamed plastic is light in weight, thermal-insulating, sound-absorbing, shockproof, and corrosion-resistant, and can be used as a filtering material, a sound insulation material, a shockproof material, a decoration material, a packaging material, a thermal insulation and a heat preservation 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. Among them, soft polyurethane foam (referred to as soft polyurethane foam) is the most widely used polyurethane product. It has low density, good elastic recovery, sound absorption, breathability, heat preservation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/22C08G18/18C08G18/20C08G101/00
CPCC08G18/163C08G18/18C08G18/1808C08G18/1825C08G18/2018C08G18/2036C08G18/2063C08G18/2081C08G18/225
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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