A kind of polyether type polyurethane material and its preparation method and application

A technology of polyether polyurethane and reaction mixture, which is applied in the field of polyether polyurethane material and its preparation, can solve the problems such as cracking and breaking of shoe soles, shorten the reaction time and demolding time, have good toughness, and improve physical properties. performance effect

Active Publication Date: 2018-08-21
薛立新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical purpose of the present invention is, aiming at the disadvantages of current polyester polyurethane such as easy hydrolysis and biodegradation, and the defect that cracks and fractures are prone to occur in the manufactured shoe soles, the invention provides a polyether polyurethane material and a preparation method thereof, The shoe sole made of the polyether polyurethane material of the present invention just overcomes the weakness of the polyester polyurethane shoe sole, and has strong low temperature performance, hydrolysis resistance and mildew resistance

Method used

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  • A kind of polyether type polyurethane material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of polyether polyurethane material:

[0040] In the reaction flask, add 1,2-propanediol (7.61g, 0.1mol), propylene oxide (5.81g, 0.1mol), sodium hydroxide (4g, 0.1mol), methanol (5mL), and react at room temperature for 12h; Then add propylene oxide (5.81g, 0.1mol), magnesium aluminum sulfate (75g, 0.1mol), react at room temperature for 20h; then add ethylene oxide (8.81g, 0.2mol), sodium hydroxide (4g, 0.1mol ), react at room temperature for 24h, then wash the reaction mixture with 10mL ethanol-water mixed solution with a volume ratio of 1:1, centrifuge at 5000r / min to remove the supernatant, repeat the above washing and centrifugation process for 3 times, and finally dry to obtain the Polyether polyurethane material 10g.

[0041] Preparation of polyurethane microcellular elastomer:

[0042] (1) Add 60 g of diphenylmethane diisocyanate and 15 g of liquefied diphenylmethane diisocyanate into a four-neck flask, keep the temperature at 70°C, and then add 5 g ...

Embodiment 2

[0048] Preparation of polyether polyurethane material:

[0049] In the reaction flask, add 1,2-propanediol (7.61g, 0.1mol), propylene oxide (8.71g, 0.15mol), sodium hydroxide (4g, 0.1mol), methanol (5mL), and react at room temperature for 12h; Then add propylene oxide (5.81g, 0.1mol), magnesium aluminum sulfate (75g, 0.1mol), react at room temperature for 20h; then add ethylene oxide (6.61g, 0.15mol), sodium hydroxide (4g, 0.1mol ), react at room temperature for 24h, then wash the reaction mixture with 10mL ethanol-water mixed solution with a volume ratio of 1:1, centrifuge at 5000r / min to remove the supernatant, repeat the above washing and centrifugation process for 3 times, and finally dry to obtain the Polyether polyurethane material 15g.

[0050] Preparation of polyurethane microcellular elastomer:

[0051] (1) Add 70 g of diphenylmethane diisocyanate and 20 g of liquefied diphenylmethane diisocyanate into a four-neck flask, keep the temperature at 70°C, and then add 5 ...

Embodiment 3

[0057] Preparation of polyether polyurethane material:

[0058] In the reaction flask, add 1,2-propanediol (11.41g, 0.15mol), propylene oxide (5.81g, 0.1mol), sodium hydroxide (4g, 0.1mol), methanol (10mL), and react at room temperature for 12h; Then add propylene oxide (4.41g, 0.1mol), magnesium aluminum sulfate (75g, 0.1mol), react at room temperature for 20h; then add ethylene oxide (6.61g, 0.15mol), sodium hydroxide (4g, 0.1mol ), react at room temperature for 24h, then wash the reaction mixture with 10mL ethanol-water mixed solution with a volume ratio of 1:1, centrifuge at 5000r / min to remove the supernatant, repeat the above washing and centrifugation process for 3 times, and finally dry to obtain the Polyether polyurethane material 15g.

[0059] Preparation of polyurethane microcellular elastomer:

[0060] (1) Add 80 g of diphenylmethane diisocyanate and 30 g of liquefied diphenylmethane diisocyanate into a four-necked flask, keep the temperature at 80°C, and then ad...

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Abstract

The invention provides a polyether urethane material. A method for preparing the polyether urethane material includes carrying out room-temperature reaction on polyhydric alcohol of initiators and alkylene oxide A in organic solvents under catalytic actions of alkali A for 1-30 h to obtain systems A; adding alkylene oxide B and metal sulfate into the systems A and carrying out room-temperature reaction on the alkylene oxide B, the metal sulfate and the systems A for 1-40 h to obtain systems B; adding alkylene oxide C and alkali B into the systems B, carrying out room-temperature reaction on the alkylene oxide C, the alkali B and the systems B for 1-60 h to obtain reaction mixtures and carrying out after-treatment on the reaction mixtures to obtain a finished product. The polyether urethane material and the method have the advantages that the polyether urethane material can be used for preparing polyurethane cellular elastomers which are used as shoe sole materials; the polyether urethane material is high in low-temperature performance, hydrolysis resistance and mildew resistance, the reaction time and the mold release time can be shortened when the polyether urethane material is used for preparing the polyurethane cellular elastomers, and the physical performance of the product can be improved.

Description

(1) Technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polyether type polyurethane material and its preparation method and application. (2) Background technology [0002] Polyether polyol is an important raw material for the synthesis of polyurethane materials. In recent years, with the rapid development of the polyurethane industry, major domestic and foreign production enterprises and scientific research institutions have carried out a lot of research and development work on the improvement of the quality and performance of polyether polyol products and the reduction of production costs. [0003] China's footwear industry has sprung up suddenly. In just over ten years, it has become the world's largest footwear producer and exporter. Especially after China's accession to the WTO, China's footwear industry has shown a strong development trend. The output of the footwear industry has accounted for The world's total ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/28C08G18/66C08G18/48
CPCC08G18/6674C08G18/6677C08G65/2609C08G65/269C08G2410/00C08G2110/0083
Inventor 薛立新金辉乐王建刘爱丽
Owner 薛立新
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