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Polyurethane shoe sole stock solution and preparation method thereof

A technology of polyurethane and stock solution, applied in the field of polyurethane, can solve the problems of low physical properties such as sole elasticity and folding resistance, strict restrictions on the use of formulas, and inflexible adjustment of formulas, and achieve good application value. The preparation method is simple and easy to implement. good sex effect

Active Publication Date: 2020-02-18
JIANGSU HUADA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present (2015), the polyurethane slurry used in shoe soles is less than 10%, which is still unable to reach the average level of developed countries
[0005] But at present, the PU equipment at home and abroad is not very mature. In many cases, it is necessary to rely on experience to control the chemical reaction molding of PU soles.
In addition, there are certain defects in the formulation process, such as strict restrictions on the use conditions of the formulation of the PU sole solution, insufficient flexibility in adjusting the formulation, and low physical properties such as elasticity and folding resistance of the sole.

Method used

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  • Polyurethane shoe sole stock solution and preparation method thereof
  • Polyurethane shoe sole stock solution and preparation method thereof
  • Polyurethane shoe sole stock solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The polyurethane sole stock solution provided by the present embodiment is prepared by the following method:

[0042] (1) Preparation of component A:

[0043] Weigh 69.3kg for CMA-244, 20.0kg for MX-806, 5.0kg for PM-445, 5kg for KE-220, 0.3kg for B8952 and 0.4kg for B8300. Put the weighed CMA-244, PM-445, MX-806 and KE-220 into the reaction kettle for stirring, then put in B8952 and B8300 respectively, stir fully at 55°C for 3 hours, put them into barrels after passing the inspection, and keep them sealed Get A component.

[0044] (2) Preparation of component B:

[0045] Put 10.0kg of ED-28, 10kg of CHE-822P, 13kg of CMA-244 and 5.0kg of MX-2325 into the reaction kettle in turn, start stirring and raise the temperature to 75°C, vacuumize to -0.098MPa, dehydrate and degas For 2.0 hours, cool down to 40°C for phosphoric acid (accounting for 0.001% of the total weight of component B) and 58kg of MDI and 5kg for MDI-100LL, raise the temperature to 75°C for 3.0 hours, cool...

Embodiment 2

[0049] The polyurethane sole stock solution provided by the present embodiment is prepared by the following method:

[0050] (1) Preparation of component A:

[0051] Weigh 65.8kg for CMA-244, 20.0kg for MX-806, 5.0kg for PM-445, 5kg for KE-220, 3.5kg for EG, 0.3kg for B8952 and 0.4kg for B8300. Put the weighed CMA-244, PM-445, MX-806 and KE-220 into the reaction kettle for stirring, then put in EG, B8952 and B8300 respectively, stir fully at 55°C for 3 hours, and fill the tank after passing the inspection. Sealed and preserved to obtain component A;

[0052] (2) Preparation of component B:

[0053] Put 10.0kg of ED-28, 10kg of CHE-822P, 13kg of CMA-244 and 5.0kg of MX-2325 into the reaction kettle in turn, start stirring and raise the temperature to 75°C, vacuumize to -0.098MPa, dehydrate and degas For 2.0 hours, cool down to 40°C for phosphoric acid (accounting for 0.001% of the total weight of component B) and 58kg of MDI and 5kg for MDI-100LL, raise the temperature to 75...

Embodiment 3

[0057] The polyurethane sole stock solution provided by the present embodiment is prepared by the following method:

[0058] (1) Preparation of component A:

[0059] Weigh POL-2356 65.6kg, MX-806 20.0kg, PM-445 5.0kg, DP-4002E 5kg, EG 3.7kg, B8952 0.3kg and B8300 0.4kg. Put the weighed CMA-244, PM-445, MX-806 and DP-4002E into the reaction kettle for stirring, then put in EG, B8952 and B8300 respectively, and fully stir at 55°C for 3 hours, after passing the inspection, put them into barrels, Sealed and preserved to obtain component A;

[0060] (2) Preparation of component B:

[0061] Put 10.0kg of DP-4000E, 10kg of CHE-822P, 13kg of CMA-244 and 5.0kg of MX-2325 into the reaction kettle in turn, start stirring and raise the temperature to 75°C, vacuumize to -0.098MPa, dehydrate and degas For 2.0 hours, cool down to 40°C for phosphoric acid (accounting for 0.001% of the total weight of component B) and 58kg of MDI and 5kg for MDI-100LL, raise the temperature to 75°C for 3.0 ...

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Abstract

The invention relates to a polyurethane shoe sole stock solution and a preparation method thereof. The polyurethane shoe sole stock solution comprises a component A, a component B and a component C, wherein the component A comprises the raw materials of polyester polyol A1, polyester polyol A2, polyether polyol A3, polyester polyol A4, a chain extension agent and a surfactant; the component B comprises the raw materials of polyester polyol B1, polyether polyol B2, polyether polyol B3, polyester polyol B4, isocyanate and a storage stabilizer; and the component C is an alcamines catalyst. When the finally prepared polyurethane shoe sole stock solution is used for polyurethane shoe sole production, the elasticity and hand feeling of a PU shoe sole are greatly improved, the rebounding rate isas high as 38%, the folding resistance is as high as 50 thousands without cracks, and therefore the stock solution has high application value and is suitable for production of outsoles of cotton-padded shoes and cloth shoes.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a polyurethane shoe sole stock solution and a preparation method thereof. The stock solution is mainly used in the shoemaking industry. Background technique [0002] Polyurethane elastomer is a kind of elastic polymer material containing more carbamate (-NHCOO-) characteristic groups in the molecular chain, and it is a polymer material with both rubber elasticity and plastic thermoplasticity. The biggest feature of polyurethane rubber is that it maintains high elasticity (elongation can reach 400% to 1000%) within the hardness range (Shore A10 to Shore D75 degrees), and it has excellent wear resistance (about 3-3% of natural rubber). 10 times), has good mechanical strength, oil resistance and ozone resistance, and has excellent low temperature performance. Because polyurethane rubber has very good comprehensive properties, it is widely used in a wide range of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/48C08G18/63C08G18/32A43B13/04
CPCC08G18/6607C08G18/4072C08G18/4202C08G18/4238C08G18/4812C08G18/4837C08G18/4854C08G18/631C08G18/3206A43B13/04
Inventor 陈竣俊
Owner JIANGSU HUADA NEW MATERIAL CO LTD
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