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Mildew-proof and antibacterial sole polyurethane stock solution and production process of polyurethane sole

A polyurethane and stock solution technology, applied in the field of materials, can solve the problems of fracture, no anti-mildew and anti-bacterial function, cracking of soles, etc., and achieve the effects of simple process, excellent anti-bacterial and anti-mildew properties, and excellent anti-bacterial properties.

Active Publication Date: 2010-12-15
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional polyester polyurethane does not have anti-mildew and anti-bacterial functions, which adversely affects the use of hygiene and wearing comfort
In addition, conventional polyester polyurethane is more prone to hydrolysis and biodegradation, especially the soles are prone to cracks and breaks, which greatly reduces the service life of shoes
These deficiencies are especially pronounced under conditions of high temperature and humidity

Method used

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  • Mildew-proof and antibacterial sole polyurethane stock solution and production process of polyurethane sole
  • Mildew-proof and antibacterial sole polyurethane stock solution and production process of polyurethane sole
  • Mildew-proof and antibacterial sole polyurethane stock solution and production process of polyurethane sole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A cobalt / plate titanium nano-titanium dioxide composite, which is prepared by the following steps: first, add 0.5g titanium dioxide powder, 7.5mL absolute ethanol and 7.5mL10mol / L sodium hydroxide solution in a clean beaker, stir for 1h and transfer Put it into the reaction kettle, make the hydrothermal reaction at 180°C, take it out after 18 hours of reaction, cool it down to room temperature naturally, then add 0.52L of 1.2mmol / L cobalt nitrate solution into the reaction kettle, after ultrasonic dispersion, let it cool at 150°C Undertake the hydrothermal reaction for 8 hours, and finally wash the hydrothermal reaction product with 0.1mol / L HCl solution and deionized water to neutrality, and dry at 80°C to obtain the cobalt / brockite nano-titanium dioxide composite, wherein cobalt and The molar ratio of titanium is 1:10.

[0024] Get titanium dioxide nanowires (the product after the first hydrothermal reaction) and the prepared cobalt / platelet titanium nano-titanium c...

Embodiment 2

[0027] A cobalt / brookite nano-titanium dioxide composite, the preparation method of which is basically the same as in Example 1, except that the molar ratio of titanium dioxide to cobalt nitrate is 1:5-6.

[0028] The process of producing polyurethane shoe soles using the polyurethane stock solution of Examples 1 and 2 can be described more specifically through the following Examples 3-8 and Comparative Example 1.

[0029] Embodiment 3~8 and comparative example 1 all account for the mass percent example of polyurethane sole stock solution according to the raw material described in table 1, prepare polyurethane sole according to the following steps:

[0030] (1), Synthetic polyurethane prepolymer component: Add 25 parts by weight of isocyanate and 20 parts by weight of polyethylene glycol adipate diol with a number average molecular weight of 2000 in sequence in the reactor, and control the temperature of the reactor at 70°C ~80°C, heat preservation reaction for 3 hours and mea...

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Abstract

The invention relates to mildew-proof and antibacterial sole polyurethane stock solution and a production process of a polyurethane sole. In the invention, the polyurethane stock solution comprises the following components in percentage by weight: 60 to 65 percent of poly(ethylene adipate)glycol with a number-average molecular weight of 1,000 to 3,000, 20 to 25 percent of isocyanate, 6 to 10 percent of 1,4-butanediol, 1 to 3 percent of triethylene diamine, 0.5 to 0.8 percent of water, 0.2 to 0.6 percent of dimethyl siloxane and 0.5 to 1.5 percent of cobalt / brookite nano titanium dioxide composite, wherein the molar ratio of cobalt to titanium atoms in the cobalt / brookite nano titanium dioxide composite is 1: 9-11. The cobalt / brookite nano titanium dioxide composite of the invention has a high antibacterial property and is suitable to be added into the sole polyurethane stock solution, so that the polyurethane sole has high antibacterial and mildew-proof properties.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a mildewproof and antibacterial shoe sole polyurethane stock solution and a process for making polyurethane shoe soles from the stock solution. Background technique [0002] Polyurethane (PU) began to be used as a shoe sole material in the 1970s. Its main advantages are that it is hard, flexible, durable and elastic across a wide range of densities. Therefore, PU has been widely used in many fields, from outsole to insole, and has a 7% market share in the substrate market. [0003] In the prior art, the polyurethane stock solution for shoe soles can be divided into two types: polyester type and polyether type according to the type of polyol used (polyester type PU is formed by combining polyester with isocyanate, while polyether type PU is polyether type PU). combined with isocyanates). Since the polyester molecule itself contains a carbonyl group, it is easy to ...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/42C08G18/32C08G18/10C08K3/22C08L75/06A43B13/04
Inventor 江平吕华波王征宇郑建伟
Owner XUCHUAN CHEM SUZHOU
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