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Application of a Polyurethane Catalyst in the Synthesis of Flexible Polyurethane Foam

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: 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 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 a Polyurethane Catalyst in the Synthesis of Flexible Polyurethane Foam
  • Application of a Polyurethane Catalyst in the Synthesis of Flexible Polyurethane Foam
  • Application of a Polyurethane Catalyst in the Synthesis of Flexible Polyurethane Foam

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Embodiment 1

[0044] This embodiment provides a polyurethane catalyst. At room temperature, 1 g of sodium butyrate, 70 g of pentamethyldiethylene triamine and 0.5 g of isooctyl alcohol phosphate are dissolved in 28.5 g of organic solvent and mixed 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- Diaminopropane is dissolved in 35g of organic solvent and mixed evenly to obtain. In this embodiment, sodium neodecanoate and sodium salicylate account for 60% by weight of the polyurethane catalyst, and pentamethyldiethylenetriamine and N,N-dimethyl-1,3-diaminopropane account for the polyurethane catalyst. 5% of catalyst.

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

Embodiment 3

[0050] This embodiment provides a polyurethane catalyst. At room temperature, 1g sodium oleate, 5g 2-dimethylaminopyridine, 50g potassium benzoate and 20g isooctanol polyoxyethylene ether phosphate are dissolved in 24g diethylamine, Mix well and get it. 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 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 repeating carbamate groups on the main chain. This polymer material can be used to manufacture rubber, rigid and flexible foams, adhesives, coatings, paints and other products. Its excellent wear resistance, impact resistance, UV resistance and high and low temperature resistance are widely used in many fields such as construction, automobile, light industry, textile, petrochemical, metallurgy, electronics, national defense, medical treatment, machinery and so on. Among them, soft polyurethane foam (polyurethane foam for short) is the most used polyurethane product. It has the properties of low density, good elastic recovery, sound absorption, ventilation, and heat preserv...

Claims

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Application Information

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