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Polyester polyurethane sole stoste and preparation method thereof

A technology of polyester polyurethane and stock solution, which is applied in shoe soles, footwear, applications, etc. It can solve the problems of low raw material utilization, pinholes on the surface, and long production cycle, so as to shorten the synthesis cycle, increase the conversion rate, and improve the conversion rate effect

Inactive Publication Date: 2012-04-18
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing low-density polyurethane sole solutions are produced by high-density technology, which has the disadvantages of long production cycle, high energy consumption, low raw material utilization rate, and high production cost.
[0004] Water and fluorocarbon compounds are used as foaming agents for shoe soles, but fluorocarbon compounds do not meet environmental protection requirements and have been strictly restricted
Using water as a foaming agent, when the amount of water increases, the density of the product decreases, but it is prone to shrinkage, resulting in rough skin
Adjusting the proportion of raw materials can improve the shrinkage, but the phenomenon of product stiffness, surface pinholes, and "foaming lines" still exists

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Mix 146g adipic acid, 62g ethylene glycol, 106g diethylene glycol and 1.5g composite catalyst, heat to 140°C under nitrogen protection to carry out polyesterification reaction, and stop when the acid value is 1mgKOH / g The reaction took 12 hours to produce 285 g of polyester polyol. The ratio of each component in the composite catalyst is: 1% sodium acetate, 10% monoethanolamine, 19% tri-n-butylamine, 15% zinc octoate, 35% dibutyltin dilaurate, 20% phenylmercury acetate %.

[0034] (2) 100g polyester polyol prepared in the above (1) and 6g 1,4-butanediol, 0.4g water, 0.1g composite catalyst (prepared in step (1)), 0.5g DC-193, 0.2g of composite additives was heated up to 60°C and mixed evenly, then cooled to 35°C and discharged to obtain component A. The composite additive is a mixture of Dabco DC-193, SD-601, KH-550 and dioctyl phthalate in a mass ratio of 1:5:0.3:5.

[0035] (3) Prepolymerize 100g of polyester polyol prepared in (1) above with 60g of 4,4'-diphen...

Embodiment 2

[0038] (1) Mix 120g adipic acid, 60g ethylene glycol, 60g diethylene glycol and 1.45g composite catalyst, heat to 180°C under nitrogen protection to carry out polyesterification reaction, and stop when the acid value is 1mgKOH / g The reaction took 11 hours to produce 220 g of polyester polyol. The ratio of each component in the composite catalyst is: 5% sodium acetate, 25% diethanolamine, 20% triethylamine, 10% zinc caprylate, 30% dibutyltin dilaurate, 10% phenylmercury acetate .

[0039] (2) 100g polyester polyol prepared in above (1) and 7g ethylene glycol, 0.4g water, 0.1g composite catalyst (prepared in step (1)), 0.5g DC-193, 0.2g composite additive Raise the temperature to 50°C and mix evenly, then cool to 35°C and discharge to obtain component A. The composite additive is a mixture of Dabco DC-3042, SD-601, KH-560 and dioctyl phthalate in a mass ratio of 1:5:0.5:10.

[0040] (3) Prepolymerize 100g of polyester polyol prepared in (1) above with 62g of 2,2'-diphenylmeth...

Embodiment 3

[0043] (1) Mix 90g adipic acid, 60g ethylene glycol, 120g diethylene glycol and 1.54g composite catalyst, heat to 220°C under nitrogen protection to carry out polyesterification reaction, and stop when the acid value is 1mgKOH / g The reaction took 10 hours to produce 246g of polyester polyol. The proportioning of each component in the composite catalyst is: sodium acetate 5%, N-methyldiethanolamine 25%, triethylamine 20%, zinc caprylate 20%, dibutyltin dilaurate 20%, acetic acid Phenylmercury 10%.

[0044] (2) 100g polyester polyol prepared in above (1) and 7g pentanediol, 0.7g water, 0.2g composite catalyst (prepared in step (1)), 0.8g DC-3042, 0.2g composite additive Raise the temperature to 80°C and mix evenly, then cool to 35°C and discharge to obtain component A. The composite additive is a mixture of Dabco DC-3042, SD-601, KH-550 and dioctyl phthalate in a mass ratio of 1:5:0.4:8.

[0045] (3) Prepolymerize 100g of polyester polyol prepared in (1) above with 65g of 2,4...

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Abstract

The invention discloses polyester polyurethane sole stoste, which comprises a component A and a component B, wherein the component A comprises the following compositions: polyester polyol, chain extender, foaming agent, composite catalyst A, foam stabilizer and compound additive, wherein the compositions are mixed according to the following mass ratio: 100 parts of the polyester polyol, 6-12 parts of the chain extender, 0.4-2.1 parts of the foaming agent, 0.1-0.5 parts of the composite catalyst A, 0.5-1.2 parts of the foam stabilizer and 0.1-0.3 parts of the compound additive; the component Bis prepared by the prepolymerization reaction of isocyanate and polyester polyol according to the mass ratio of 100:(60-70); and the polyester polyol in the component A or the component B is preparedin a way that dibasic acid and polyhydric alcohol carry out polyesterification reaction at the temperature of 140-220DEG C under the action of composite catalyst B. In the polyester polyurethane solestoste, acetate, amine-type catalyst, organic metal catalyst and the like are mutually compounded to form the composite catalyst. The composite catalyst is adopted in the new technology to improve the percent conversion of the polyester polyol, the synthesis cycle is greatly shortened, energy consumption is lowered, and cost is reduced.

Description

(1) Technical field [0001] The invention relates to a method for synthesizing chemical products, in particular to a method for preparing a stock solution of polyester polyurethane shoe soles, and belongs to the technical field of a stock solution of polyurethane shoe soles. (2) Background technology [0002] Polyurethane (PU) sole material has the characteristics of comfort, lightness, non-slip, good elasticity, high strength, wear resistance, good oil resistance, etc., and is increasingly favored by people. Polyurethane stock solution for shoe soles can be divided into two types: polyether type and polyester type. The wear resistance and tear resistance of polyester PU soles are better than those of polyether PU soles. Therefore, most domestic shoe soles currently use polyester stock solutions. [0003] The pursuit of low cost and high quality is the development direction of polyurethane sole materials. Reducing density is one of the usual requirements of polyurethane sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/672C08G63/87C08G18/76C08G18/42C08L67/02C08L75/06A43B13/04
Inventor 熊静李大帅周书光徐静江吉旺
Owner WENZHOU UNIVERSITY
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