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Adsorption environmentally-friendly waterborne polyurethane pad and preparation method thereof

A water-based polyurethane, environmentally friendly technology, applied in polyurea/polyurethane coatings, coatings, textiles and papermaking, etc., to achieve good air permeability, good hand feeling, and good sound insulation effect

Inactive Publication Date: 2018-02-27
遂昌玄乐炭复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] "Nanchang University" 2011 master's thesis "Exploration of Aqueous Polyurethane Acid Bath Coagulation Film Formation" paper discloses the use of acetic acid to foam water-based polyurethane emulsion to prepare synthetic leather, but also discloses that the surface and cross-section of WPU acid bath demulsification method have There are many microporous structures, among which the microporous structure without wood powder is richer than that with added wood powder, but no matter which one, compared with the solvent-based PU wet method, the microporous structure is still quite different. Therefore, WPU acid bath demulsification method needs further research from theory to practice

Method used

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  • Adsorption environmentally-friendly waterborne polyurethane pad and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

margin

[0038] A kind of production method of environment-friendly type imitation leather water-based polyurethane cushion, this method comprises the following steps:

[0039] 1) Before spraying, the polar fleece is soaked in bamboo vinegar, the pH of the bamboo vinegar is 3.5, so that the polar fleece is soaked in bamboo vinegar, and then squeezed dry;

[0040] 2) Spray the above-mentioned water-based polyurethane coating on the fleece cloth, solidify on the surface of the fleece cloth to form a water-based polyurethane layer, and squeeze it dry;

[0041] 3) After being squeezed dry, enter the bamboo vinegar solution for foaming. The pH of the bamboo vinegar solution is 3.2, and the foaming time is 2 minutes to form a porous polyurethane coating. The coating amount of the water-based polyurethane layer is 40g / m 2 ;

[0042] 4) After foaming, wash with water and dry to obtain the water-based polyurethane mat.

[0043] Adopt the above-mentioned method to prepare the aq...

Embodiment 2

margin

[0090] A kind of production method of environment-friendly type imitation leather water-based polyurethane cushion, this method comprises the following steps:

[0091] 1) Before spraying, the polar fleece is soaked in bamboo vinegar, the pH of the bamboo vinegar is 3.5, so that the polar fleece is soaked in bamboo vinegar, and then squeezed dry;

[0092] 2) Spray the above-mentioned water-based polyurethane coating on the fleece cloth, solidify on the surface of the fleece cloth to form a water-based polyurethane layer, and squeeze it dry;

[0093] 3) After being squeezed dry, enter the bamboo vinegar solution for foaming. The pH of the bamboo vinegar solution is 3.2, and the foaming time is 2 minutes to form a porous polyurethane coating. The coating amount of the water-based polyurethane layer is 40g / m 2 ;

[0094] 4) After foaming, wash with water and dry to obtain the water-based polyurethane mat.

[0095] The water-based polyurethane mat prepared by the m...

Embodiment 3

margin

[0105] A kind of production method of environment-friendly type imitation leather water-based polyurethane cushion, this method comprises the following steps:

[0106] 1) Before spraying, the polar fleece is soaked in bamboo vinegar, the pH of the bamboo vinegar is 3.5, so that the polar fleece is soaked in bamboo vinegar, and then squeezed dry;

[0107] 2) Spray the above-mentioned water-based polyurethane coating on the fleece cloth, solidify on the surface of the fleece cloth to form a water-based polyurethane layer, and squeeze it dry;

[0108] 3) After being squeezed dry, enter the bamboo vinegar solution for foaming. The pH of the bamboo vinegar solution is 3.2, and the foaming time is 2 minutes to form a porous polyurethane coating. The coating amount of the water-based polyurethane layer is 40g / m 2 ;

[0109] 4) After foaming, wash with water and dry to obtain the water-based polyurethane mat.

[0110] The water-based polyurethane mat prepared by the m...

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Abstract

The invention relates to the field of pads and in particular to a method for producing an adsorption environmentally-friendly waterborne polyurethane pad. The adsorption environmentally-friendly waterborne polyurethane pad is prepared by spraying a waterborne polyurethane coating onto anti-pilling polar fleece and by foaming the anti-pilling polar fleece by adopting a bamboo vinegar solution, wherein the waterborne polyurethane coating comprises the following components in percentage by mass: 20-60% of a waterborne polyurethane emulsion, 10-40% of packing, 2.0-40% of an adsorption material, 0-30% of calcium carbonate and 0.1-2.0% of processing aids. As the pad is foamed by adopting the bamboo vinegar solution, the prepared waterborne polyurethane pad has properties of mold resistance, bacterium resistance and oxidation resistance, is capable of removing harmful substances such as methanol and formaldehyde and is endowed with novel effects.

Description

technical field [0001] The invention relates to the field of mats, in particular to a production method of an environment-friendly leather-like water-based polyurethane mat. Background technique [0002] Most of the existing high molecular polymer mats (or pads, gaskets) are made of plastic (such as PVC) and rubber materials. They are generally made by one-time integral injection molding or vulcanization, and the products made are resistant to low temperature. Poor performance, easy to harden and crack, feel astringent; production process of finished products is more, easy to cause dirty production environment, heavy odor, some raw materials (such as PVC) long-term close contact with human body will also affect human health, and, due to plastic The nature of the product determines that the product is easy to age, has poor wear resistance, and has a short service life. [0003] Polyurethane synthetic leather has soft and natural luster, soft hand feeling and strong genuine l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00C09D7/61C09D175/04D06M15/01
CPCD06N3/14C08K2003/2241C08K2003/265C08K2201/011C08L2205/035C09D175/04D06M15/01D06N3/0043D06N3/0061D06N3/0063D06N2209/103D06N2209/1642D06N2209/165D06N2209/1671D06N2209/1685C08L97/02C08L83/04C08K3/36C08K3/04C08K3/26C08K3/22
Inventor 管宁章管玄谢永水
Owner 遂昌玄乐炭复合材料有限公司
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