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A kind of high adhesion leather finishing material and preparation method thereof

A high-adhesion, leather-based technology, applied in the field of finishing materials, can solve problems such as weak adhesion of leather

Active Publication Date: 2021-08-13
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-adhesive leather finishing material and its preparation method, which overcomes the ubiquitous problem of poor adhesion to leather in the prior art finishing materials

Method used

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  • A kind of high adhesion leather finishing material and preparation method thereof
  • A kind of high adhesion leather finishing material and preparation method thereof
  • A kind of high adhesion leather finishing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The concrete preparation process of 3-methacrylamido dopamine (DMA) is:

[0045]A1. Take a 250mL three-neck flask, weigh 4g of sodium bicarbonate and 10g of sodium borate and dissolve them in 100mL of distilled water, blow nitrogen for half an hour to fully remove the air in the flask;

[0046] A2, take by weighing 2.5g dopamine hydrochloride and join in the above-mentioned solution, the solution presents the color of micropowder;

[0047] A3. Take another 2.5mL of methacrylic anhydride, dissolve it in 12.5ml of tetrahydrofuran (THF), and add it dropwise to the above solution after it is fully uniform. Adjust the pH value to keep the pH value above 8;

[0048] A4, blow nitrogen for half an hour, stir at room temperature for 4 hours, after the reaction is completed, transfer the resulting solution to a separatory funnel;

[0049] A5. Add 60mL ethyl acetate solution for washing, shake well, and after standing fully, take the bottom layer of powdery white solid to precip...

Embodiment 2-6

[0057] Referring to the preparation method of the high-adhesive leather finishing material provided by the present invention, according to the component contents shown in Table 1, the high-adhesive leather finishing materials of Examples 2-6 were prepared.

[0058] The high-adhesion leather finishing material raw material component content of table 1 embodiment 1-6

[0059]

[0060]

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Abstract

The invention provides a high-adhesion leather finishing material and a preparation method thereof. The raw materials include 3-methacrylamido dopamine, acrylates, an initiator and a solvent, and a polyacrylate polymer (imitation mussels) is prepared by reaction. shell adhesive polymer). Finishing application research shows that the coating material of the present invention can effectively improve the adhesion performance, dynamic waterproof performance and friction resistance performance of the coating after coating the surface of the raw leather, and prolong the service life of leather products and the value of artworks.

Description

technical field [0001] The invention belongs to the technical field of finishing materials, and in particular relates to a high-adhesive leather finishing material and a preparation method thereof. Background technique [0002] Leather finishing, like makeup, plays an extremely critical role in the leather-making process. Finishing can endow leather products with stylization, modify leather surface defects, greatly improve the performance of leather products, and turn them into high-value-added works of art. Leather finishing materials are usually prepared according to the proportion of film-forming substances, coloring materials, solvents and additives. At present, the adhesive materials commonly used in leather finishing materials, also known as finishing agents, mainly fall into four categories: polyacrylic acid, polyurethane, protein and nitrocellulose adhesive materials. Among them, polyacrylic acid adhesive materials have obvious performance defects of "hot stickiness...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C08F220/18C08F220/58C14C11/00
CPCC08F220/18C09D133/08C14C11/003C08F220/1804C08F220/58
Inventor 罗荣刘红莲梁兴初张迪靳丽强王玉路
Owner QILU UNIV OF TECH