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Polyurethane microporous elastomer added with alcohol and amine compound, and preparation method and application of polyurethane microporous elastomer added with alcohol and amine compound

A technology of alcohol amine compounds and microporous elastomers, applied in applications, shoe soles, clothing, etc., can solve problems such as consumption of catalysts, hidden dangers of safe use, and easy glue opening, etc., to reduce production costs, improve applicability, and prolong service life Effect

Active Publication Date: 2012-09-19
ZHEJIANG HUAFON NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Users generally report that polyurethane protective shoe soles are prone to quality problems such as glue opening and bottom removal during use, which brings hidden dangers to safe use
The main reason is that the peeling strength of the outsole and midsole of polyurethane protective shoes is low. The peeling strength of the outsole and midsole of polyurethane protective shoes on the market is 3.5-4.0kN / m, which cannot guarantee that they will not be damaged during use. The problem of ungluing and not peeling off the bottom reduces the service life of polyurethane protective shoes, hinders the expansion of the application field of polyurethane protective shoes, and hinders the development of the polyurethane industry
In addition, a certain amount of catalyst needs to be consumed in the production process of protective shoe soles. Generally, 0.057 kg of catalyst needs to be added to every 10 kg of polyurethane resin raw materials. The consumption of a large amount of catalyst has brought cost pressure to manufacturers.

Method used

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  • Polyurethane microporous elastomer added with alcohol and amine compound, and preparation method and application of polyurethane microporous elastomer added with alcohol and amine compound
  • Polyurethane microporous elastomer added with alcohol and amine compound, and preparation method and application of polyurethane microporous elastomer added with alcohol and amine compound
  • Polyurethane microporous elastomer added with alcohol and amine compound, and preparation method and application of polyurethane microporous elastomer added with alcohol and amine compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Add 11.05kg of adipic acid, 2.36kg of ethylene glycol, 4.03kg of diethylene glycol and 0.89kg of N-methyldiethanolamine in a heatable reactor equipped with a distillation column and a reflux receiver , turn on the stirring device and the nitrogen atmosphere protection device, then raise the temperature to 140°C, and remove the product water by distillation during the reaction process, and the acid value measured at this time is about 40mgKOH / g. Then add 2.0g of catalyst tetraisopropyl titanate TIPT, reduce the pressure to 10-15mbar, raise the temperature to about 220°C, continue the polycondensation reaction, and remove the product water by distillation during the reaction process. Measure the viscosity and acid value of the mixture in the reaction vessel. When the weight-average molecular weight reaches about 2200 and the acid value reaches about 0.4 mgKOH / g, cool the reaction vessel, lower the temperature to room temperature, and terminate the reaction to obtain polyes...

Embodiment 2

[0067] Add 12.51kg of adipic acid, 4.30kg of ethylene glycol, 2.69kg of diethylene glycol and 0.50kg of N-methyldiethanolamine in a heatable reaction kettle equipped with a distillation column and a reflux liquid receiver , turn on the stirring device and the nitrogen atmosphere protection device, then raise the temperature to 160°C, and remove the product water by distillation during the reaction process. At this time, the measured acid value is about 45mgKOH / g. Then add 2.2g of catalyst tetraisopropyl titanate TIPT, reduce the pressure to 10-15mbar, raise the temperature to about 240°C, continue the polycondensation reaction, and remove the product water by distillation during the reaction process. Measure the molecular weight and acid value of the mixture in the reaction vessel. When the weight-average molecular weight reaches about 1800 and the acid value reaches about 0.4 mgKOH / g, cool the reaction vessel, lower the temperature to room temperature, and terminate the reacti...

Embodiment 3

[0070] In a heatable reaction kettle equipped with a distillation column and a reflux liquid receiver, add 11.06kg of adipic acid, then add 2.61kg of ethylene glycol and 4.47kg of diethylene glycol, and turn on the stirring device and the nitrogen atmosphere protection device The temperature was raised to 180°C, and the product water was removed by distillation during the reaction. At this time, the acid value was measured to be about 35 mgKOH / g. Then add 2.2g of catalyst tetraisopropyl titanate TIPT, reduce the pressure to 10-15mbar, raise the temperature to about 230°C, continue the polycondensation reaction, and remove the product water by distillation during the reaction process. Measure the molecular weight and acid value of the mixture in the reaction vessel. When the weight-average molecular weight reaches about 2000 and the acid value reaches about 0.4 mgKOH / g, cool the reaction vessel, lower the temperature to room temperature, and terminate the reaction to obtain poly...

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Abstract

The invention discloses a polyurethane microporous elastomer added with an alcohol and amine compound, and a preparation method and application of the polyurethane microporous elastomer added with the alcohol and amine compound. The polyurethane microporous elastomer is a reaction product of a polyurethane resin component A, and a polyurethane resin component B; the polyurethane resin component A is polyester polyol mixture added with the alcohol and amine compound; the polyurethane resin component B is a reaction product of polyester polyol, diisocyanate and liquefied diisocyanate; the polyurethane microporous elastomer added with the alcohol and amine compound is used for manufacturing a protective sole, and the basic requirement of physical properties and the production operation requirement of the protective shoe sole can be met; and specifically, the peel strength of a midsole and an outer sole which are manufactured by using the polyurethane microporous elastomer is improved by 19 to 28 percent compared with that of a common polyurethane sole, a small amount of catalyst is used, and the production of a polyurethane protective sole is reduced.

Description

technical field [0001] The invention relates to a modified polyurethane microporous elastomer and its preparation method and application, especially the application on protective shoe soles. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated urethane groups on the main chain. It is a polymer compound obtained by the interaction of binary or polyvalent organic isocyanates and polyol compounds. Since the 1970s, polyurethane microcellular elastomers have been used as sole materials. Compared with other shoe materials (rubber, PVC, TPR), they have the characteristics of light weight, good elasticity, oil resistance, and high wear resistance. The advantages of economy, environmental protection, durability, comfort and beauty are increasingly favored by consumers. In recent years, safety production has been paid more and more attention by the state and enterprises, and the market of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G63/685C08J9/14C08J9/08C08L75/06A43B13/04
Inventor 赵叶宝温文宪郝智平朱彦林孝宾陈一帆
Owner ZHEJIANG HUAFON NEW MATERIALS CO LTD
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