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Cold-resistant polyurethane shoe sole raw liquid and preparation method

A technology of cold-resistant polyurethane and stock solution, applied in the field of polyurethane materials, can solve the problems of affecting the aesthetics of cold-resistant soles, poor resin fluidity, sole bubbles, etc., and achieve the effects of easy implementation of the preparation method, good fluidity, and reduced bubbles

Inactive Publication Date: 2018-04-03
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the fluidity of the resin is poor, which can easily lead to air bubbles on the surface of the sole, and shrink when the product density decreases, resulting in rough skin and affecting the aesthetics of cold-resistant soles
The existing polyurethane sole prepared from the polyurethane sole solution has poor comfort when the temperature is low in winter

Method used

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  • Cold-resistant polyurethane shoe sole raw liquid and preparation method
  • Cold-resistant polyurethane shoe sole raw liquid and preparation method
  • Cold-resistant polyurethane shoe sole raw liquid and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of cold-resistant polyurethane sole stock solution of the present invention is as follows:

[0034] (1) Preparation of component A: weigh PE-2420 to 80.0kg, EP-330NG to 20.0kg, ethylene glycol to 5.0kg, DC2525 to 0.5kg and H 2 O is 0.4kg. Put the weighed PE-2420 and ED-28 into the reaction kettle and stir, then put ethylene glycol, DC2525 and H 2 O, fully stir at 55°C for 3 hours, pack into barrels after passing the inspection, and seal and store to obtain component A;

[0035] (2) Preparation of component B: put 25.0kg of PE-2520 and 15.0kg of EP-3600 into the reaction kettle in turn, start stirring and raise the temperature to 90°C, vacuumize to -0.098MPa, dehydrate and degas for 2.0 hours, Cool to 40°C phosphoric acid (accounting for 0.001% of the total weight of component B) and 65kg of MDI-100, raise the temperature to 90°C for 3.0 hours, cool to 40°C after passing the test, put in barrels, and seal and store to obtain the B component;

[...

Embodiment 2

[0038] The preparation method of cold-resistant polyurethane sole stock solution of the present invention is as follows:

[0039] (1) Preparation of component A: Weigh 90.0kg of PE-4020, 10.0kg of EP-3600, 6.0kg of ethylene glycol, 0.4kg of DC193 and H 2 O is 0.5kg. Put the weighed PE-4020 and EP-3600 into the reaction kettle and stir, put in ethylene glycol, DC193 and H 2 O, fully stirred at 50°C for 2 hours, discharged into barrels after passing the inspection, and sealed to obtain component A;

[0040] (2) Preparation of component B: Put 20.0kg of PE-2515, 10.0kg of PE-2325 and 20.0kg of EP-330N into the reaction kettle in turn, start stirring and raise the temperature to 85°C, then vacuumize to -0.098MPa , dehydrate and degas for 3.0 hours, cool down to 40°C and add phosphoric acid (accounting for 0.001% of the total weight of component B), 44C is 60kg, 103C is 20kg, heat up to 85°C and react for 2.5 hours, after passing the test, cool down to 40°C for barreling , seale...

Embodiment 3

[0043] The preparation method of cold-resistant polyurethane sole stock solution of the present invention is as follows:

[0044] (1) Preparation of component A: weigh 70.0kg of PE-5620, 30.0kg of EP-3600, 8.0kg of ethylene glycol, 5.0kg of 1,3-propanediol, 1.5kg of triethanolamine, and 1.5kg of DC6070. 0.3kg and H 2 O is 0.6kg. Put the weighed PE-5620 and EP-3600 into the reactor for stirring, then put in ethylene glycol, DC6070 and H 2 O, fully stirred at 50°C for 3 hours, discharged into barrels after passing the inspection, and sealed to obtain component A;

[0045](2) Preparation of component B: put 25.0kg of PE-2520 and 15.0kg of EP-3600 into the reaction kettle in turn, start stirring and raise the temperature to 70°C, vacuumize to -0.098MPa, dehydrate and degas for 2.0 hours, Cool down to 40°C and add accurately metered phosphoric acid (accounting for 0.001% of the total weight of component B), and 65kg of MDI-100, heat up to 90°C and react for 3.0 hours, after pass...

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PUM

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Abstract

The invention relates to a cold-resistant polyurethane shoe sole raw liquid and a preparation method, and belongs to the technical field of polyurethane materials. The cold-resistant polyurethane shoesole raw liquid comprises a component A, a component B and a component C in parts by weight, wherein the component A is prepared from the following components of 70 to 90 parts of polyester polyol A1, 10 to 30 parts of polyether polyol A2, 5 to 10 parts of chain extender, 0 to 3 parts of crosslinking agent, 0.2 to 0.8 part of foaming agent, and 0.3 to 0.6 part of surfactant; the component B is prepared from the following components of 15 to 25 parts of polyester polyol B1, 10 to 20 parts of polyester polyol B2, 3 to 5 parts of polyether polyol B3, 60 to 70 parts of isocyanate, and a storage stabilizer, and the amount of the storage stabilizer accounts for 0.001% of the total amount of the component B; the component C is an alcamines catalyst, and the amount of the alcamines catalyst accounts for 1.5 to 2.5% of the total amount of the component A. The cold-resistant polyurethane shoe sole raw liquid has the advantages that the safety and environment-friendly effects are realized, the fluidity is good, and the number of air bubbles at the surface of a shoe sole is obviously reduced; the preparation method is simple, the implementing is easy, and the energy-saving and consumption-decreasing effects are realized.

Description

technical field [0001] The invention relates to a stock solution of cold-resistant polyurethane sole and a preparation method thereof, belonging to the technical field of polyurethane materials. Background technique [0002] Cold-resistant polyurethane soles have inherited the advantages of traditional polyurethane soles such as light weight, good wear resistance, and low cost. With the improvement of living standards, people have put forward higher and higher requirements for the technical indicators and comfort of footwear products. [0003] High comfort and high quality are the development direction of polyurethane sole materials in the future, and improving the comfort of polyurethane shoe materials has become a way for suppliers to improve their own competitiveness. Foaming agents for shoe sole resins on the market are mainly water and fluorocarbon compounds. With the deepening of environmental protection concepts, fluorocarbon compounds have been strictly restricted, a...

Claims

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Application Information

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IPC IPC(8): C08G18/42C08G18/48C08G18/66C08G101/00
CPCC08G18/4018C08G18/4202C08G18/4238C08G18/4804C08G18/6607C08G2110/0083
Inventor 代金辉甘经虎李海朝李冰任明月
Owner SHANDONG INOV POLYURETHANE
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