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A kind of stock solution of polyether type polyurethane sole

A technology of polyether polyurethane and stock solution, which is applied in the field of polyurethane materials, can solve the problems of low strength, poor physical properties, and non-abrasion resistance, and achieve good hydrolysis resistance, weather resistance and tortuous resistance, extended use range, and good physical strength Effect

Active Publication Date: 2015-09-02
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The polyether polyol used to prepare polyether polyurethane shoe sole materials is mainly polytetrahydrofuran ether polyol, which has a high strength similar to that of polyester polyol, and has good low temperature resistance, but the price is relatively high. Affected its commercial application
The polyether polyol made from propylene oxide and ethylene oxide is cheap, but has poor physical properties, low strength, and is not wear-resistant. It can only be used in some occasions that do not require high physical properties, mainly for inner insoles.

Method used

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  • A kind of stock solution of polyether type polyurethane sole
  • A kind of stock solution of polyether type polyurethane sole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Preparation of polyester polyol

[0026] The preparation of polyester polyol can adopt the conventional preparation method of polyester polyol, and in this embodiment, nitrogen depressurization method is used for preparation.

[0027] The preparation process of polyethylene glycol diethylene glycol ester polyol with molecular weight about 2200:

[0028] Add 3300g of dimer acid, 270g of ethylene glycol, and 430g of diethylene glycol to the reaction kettle in sequence, turn on the stirring, start to raise the temperature, and at the same time, pass nitrogen gas into the upper part of the reaction kettle, and keep the temperature for 2 hours to stabilize the dehydration rate when the temperature is raised to 185-190°C (Through the rectification tower, the temperature at the top of the tower is maintained at <102°C) and then continue to increase the temperature until the temperature rises to about 210°C, switching nitrogen gas from the lower part of the reaction liquid, ...

Embodiment 2

[0037] The difference between embodiment two and embodiment one is:

[0038] 1. Synthesis of component A

[0039]Add 3500g of trifunctional polyether polyol with a molecular weight of about 4500, 500g of polymer polyol, 400g of 1,4-butanediol, 50g of diethylene glycol, and 40g of ethylene glycol solution of triethylenediamine into the reactor , deionized water 6g, dimethylsiloxane 30g, strength improving additive 200g; heat up to 50 ℃ ~ 60 ℃, stir at high speed for one hour and then lower the temperature to below 40 ℃, slowly add HCFC-141B 30g and then stir at low speed for 0.5 After h, component A is obtained.

[0040] 2. Synthesis of component B

[0041] Raw materials: 300 g of poly(ethylene glycol diethylene glycol) diethylene glycol ester polyol with a molecular weight of about 1800, 1,700 g of polyether polyol with a molecular weight of about 4,500, 4,4-diphenylmethane diisocyanate (MDI ) 2500g, liquefied MDI120g.

[0042] Add MDI, liquefied MDI, polyether polyol, pol...

Embodiment 3

[0044] The difference between embodiment three and embodiment one is:

[0045] 1. Synthesis of component A

[0046] Add 1500g of trifunctional polyether polyol with a molecular weight of about 6000, 1000g of a difunctional polyether polyol with a molecular weight of about 2000, 1000g of polymer polyol, 500g of 1,4-butanediol, triethylene 60g of ethylene glycol solution of diamine, 10g of deionized water, 20g of dimethyl siloxane, 300g of strength improving additive; heat up to 50°C-60°C, stir at high speed for one hour and lower the temperature to below 40°C, slowly Add 40g of HCFC-141B and stir at a low speed for 0.5h to obtain component A.

[0047] 2. Synthesis of component B

[0048] Raw materials: 500 g of polyethylene dimer acid diethylene glycol ester polyol with a molecular weight of about 2000, 1500 g of polyether polyol with a molecular weight of about 5000, 3000 g of MDI and 150 g of liquefied MDI prepared above.

[0049] Add MDI, liquefied MDI, polyether polyol, ...

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Abstract

The invention discloses a polyether urethane shoe sole raw liquorbasic solution. The polyether urethane shoe sole basic solutionraw liquor comprises a component A and a component B, wherein the raw material formula of the component A comprises polyether polyol, polymer polyol (POP), a chain extender, a strength improvement additive, a dispersing aid, a catalyst, a foaming agent and a foam stabilizer. The polyether urethane shoe sole basic solutionraw liquor is characterized in that the component B is an isocyanate prepolymer which is prepared by the reaction of isocyanate, polyether polyol and poly dimer acid glycol diethylene glycol ester polyhydric alcohol. The polyether urethane shoe sole basic solutionraw liquor provided by the invention has the advantages that the dimer acid type polyether polyol with a long molecular chain and excellent hydrolysis resistance is introduced to the component B, so that the hydrolysis resistance of the polyurethane product is not affected on the basis of improving the mechanical property of the polyurethane product; and organic modified silicon dioxide having relatively good compatibility with macromolecules and nanoscale calcium carbonate are adopted, so that the physical and mechanical property of the polyurethane product is improved.

Description

technical field [0001] The invention belongs to the field of polyurethane materials, and in particular relates to a polyether type polyurethane sole solution. Background technique [0002] As a new multifunctional polymer material, polyurethane is a high-tech, high-performance, and high-value-added product. It occupies an important position in the material industry and has developed into one of the world's six major synthetic materials. In many polyurethane branch fields (foam, elastomer, coating, adhesive, fiber, etc.), microcellular polyurethane elastomer is a new type of material between foam and elastomer, which has both good mechanical properties and The comfort of foam, compared with ordinary rubber, has the mechanical properties of high strength, good toughness, light weight, stable compression stress transmission, excellent oil resistance and fatigue resistance. Among them, the most prominent feature is that it has excellent impact absorption performance, and the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/63C08G18/48C08G18/42C08G18/12C08K13/06C08K9/04C08K3/36C08K3/26C08J9/14C08J9/08C08G101/00
CPCC08G18/2063C08G18/4018C08G18/4247C08G18/664C08G18/6674C08G2101/00C08G2410/00C08J9/0066C08J9/0071C08J9/08C08J9/143C08J2203/02C08J2203/142C08J2203/184C08J2375/08C08K3/26C08K3/36C08K9/04C08K2003/265C08K2201/011
Inventor 董博
Owner XUCHUAN CHEM SUZHOU
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