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Wool keratin/water-based polyurethane composite emulsion coating agent with warming function and preparation method thereof

A wool keratin and water-based polyurethane technology, which is applied in textiles and papermaking, etc., achieves the effects of no environmental pollution, wide source of raw materials, and simple preparation process.

Active Publication Date: 2022-06-07
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Literature research found that there are few reports on the use of wool keratin in the preparation of coating agents, and the present invention intends to make a breakthrough in this field

Method used

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  • Wool keratin/water-based polyurethane composite emulsion coating agent with warming function and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In the present embodiment, the wool keratin / water-based polyurethane composite emulsion coating agent with thermal insulation function is prepared by the following method, including the following steps:

[0032] (1) Selection of waste wool: Choose waste clothes made of wool, wash with detergent for clothes, then wash with plenty of water and dry.

[0033] (2) Preparation of wool keratin solution: at 70 ° C, 10 g of waste clothes treated in step (1) were dissolved in a mixed solution of 150 mL of tricarboxyethyl phosphine and 15 g of urea, the dissolution process was continuously stirred, and the dissolution time was 5h, Filtration and concentration to obtain wool keratin solution, the solid content of wool keratin solution is 48.7%.

[0034] (3) Preparation of wool keratin powder: freeze-dry the wool keratin solution prepared in step (2) on a freeze dryer, the freezing temperature is -55°C, and the drying time is: 14h to obtain wool keratin powder. body.

[0035] (4) ...

Embodiment 2

[0042] In the present embodiment, the wool keratin / water-based polyurethane composite emulsion coating agent with thermal insulation function is prepared by the following method, including the following steps:

[0043] (1) Selection of waste wool: Choose waste clothes made of wool, wash with detergent for clothes, then wash with plenty of water and dry.

[0044] (2) Preparation of wool keratin solution: at 60° C., 10 g of waste clothes treated in step (1) were dissolved in a mixed solution of 100 mL of tricarboxyethyl phosphine and 10 g of urea, and the dissolution process was continuously stirred, and the dissolution time was 4 h. Filtration and concentration to obtain wool keratin solution, the solid content of wool keratin solution is 43.5%.

[0045](3) Preparation of wool keratin powder: freeze-dry the wool keratin solution prepared in step (2) on a freeze dryer, the freezing temperature is -50°C, and the drying time is: 18h to obtain wool keratin powder. body.

[0046] ...

Embodiment 3

[0053] In the present embodiment, the wool keratin / water-based polyurethane composite emulsion coating agent with thermal insulation function is prepared by the following method, including the following steps:

[0054] (1) Selection of waste wool: Choose waste clothes made of wool, wash with detergent for clothes, then wash with plenty of water and dry.

[0055] (2) Preparation of wool keratin solution: at 80 ° C, 10 g of waste clothes treated in step (1) were dissolved in a mixed solution of 200 mL of tricarboxyethyl phosphine and 20 g of urea, the dissolution process was continuously stirred, and the dissolution time was 6h, Filtration and concentration to obtain wool keratin solution, the solid content of wool keratin solution is 60.3%.

[0056] (3) Preparation of wool keratin powder: freeze-dry the wool keratin solution prepared in step (2) on a freeze dryer, the freezing temperature is -60°C, and the drying time is: 18h to obtain wool keratin powder. body.

[0057] (4) ...

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Abstract

The invention relates to a wool keratin / water-based polyurethane composite emulsion coating agent with a function of keeping warm and a preparation method thereof. The coating agent can be prepared by the following preparation method: use waste wool as raw material, extract wool keratin therefrom; then prepare keratin into O / W type wool keratin emulsion; prepare aqueous polyurethane emulsion, and extract wool keratin emulsion It is compounded and mixed with water-based polyurethane emulsion to prepare a wool keratin / water-based polyurethane composite emulsion coating agent with a function of keeping warm. After the wool keratin / water-based polyurethane composite emulsion coating agent prepared by the invention is used for the coating and finishing of cotton fabrics, the heat retention rate of the cotton fabrics rises from 24.7% to over 66%, indicating that the coating agent has a good heat preservation function. The preparation process of the invention is simple, the production process has no pollution to the environment, and is beneficial to further popularization and application.

Description

technical field [0001] The invention belongs to the technical field of coating agents, and in particular relates to a wool keratin / aqueous polyurethane composite emulsion coating agent with thermal insulation function and a preparation method thereof. Background technique [0002] Coating agent is a kind of textile auxiliary agent, which is coated on the surface of the textile, which can make the textile have many properties, such as: warmth, windproof, hydrophobic, anti-ultraviolet and anti-static, etc. At present, there are mainly two types of coating agents on the market: polyacrylates and polyurethanes, which have their own advantages and disadvantages when used. With the improvement of people's demand for the quality of textile and clothing, various new textile coating agents have been continuously developed and produced to meet the needs of the market. [0003] In sheepskin tanning, there will be a large amount of wool waste residue, in addition, there is also a large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/00C08G18/76C08G18/67C08G18/66C08G18/48C08G18/34
CPCD06N3/14D06N3/0061D06N3/0015C08G18/7614C08G18/6755C08G18/6692C08G18/4825C08G18/348D06N2201/042
Inventor 彭雄义邓健刘仰硕粟斯伟蔡映杰
Owner WUHAN TEXTILE UNIV
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