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A kind of environment-friendly flame-retardant waterproof agent for leather and preparation method thereof

A waterproof and environmentally friendly technology, applied in leather surface treatment, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, etc. Easy to yellow and other problems, to achieve the effect of durable waterproof performance, environmental protection performance, and alcohol wiping resistance

Active Publication Date: 2018-05-15
清远市美佳乐环保新材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing waterproofing agents do not have a long-lasting waterproof effect, are prone to yellowing, are not resistant to alcohol wiping, have no flame retardancy, are not environmentally friendly, and are not easy to apply to high-grade leather. Even some waterproofing agents on the market are not stable and easy to separate Floor

Method used

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  • A kind of environment-friendly flame-retardant waterproof agent for leather and preparation method thereof
  • A kind of environment-friendly flame-retardant waterproof agent for leather and preparation method thereof
  • A kind of environment-friendly flame-retardant waterproof agent for leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In a four-necked flask equipped with a stirrer, a thermometer, and a reflux tube, mix 2g BPO initiator, 5g acrylamide, 20g vinyl silicone oil (1000cp), 6g vinyl chloride, 40g octadecyl acrylate with 100g solvent (acetic acid 50g of ethyl ester and 50g of butyl acetate) were mixed evenly, added dropwise to the reaction vessel at 80°C for 4 hours, then 29g of dodecafluoroheptyl acrylate was added dropwise for 1 hour, and finally mechanically stirred and kept for 5 hours to obtain The uniform viscous solution is the environmentally friendly flame retardant waterproofing agent for leather. After being placed for two months, the solution does not delaminate and has good stability. Take the waterproofing agent and bake it at 100°C for 4 hours without yellowing. , Ignite the dried waterproof agent with an open flame, remove the fire source, self-extinguishing occurs, and has certain flame-retardant properties. Apply this water repellant solution to the leather finishing agent ...

Embodiment 2

[0029] In a four-necked flask equipped with a stirrer, a thermometer, and a reflux tube, put 1.5g of AIBN initiator, 15g of hydroxyethyl acrylate, 10g of vinyl silicone oil (1500cp), 3g of vinylidene chloride monomer, and 50g of hexadecyl acrylate Mix the ester with 100g of solvent (butanone) evenly, drop it into the reaction vessel at 90°C for 2 hours, then add 22g of dodecafluoroheptyl acrylate dropwise for 2 hours, and finally mechanically stir and keep warm for 3 hours to obtain a uniform viscous solution The product is the environmentally friendly flame retardant waterproofing agent for leather. The water repellent film formed by the obtained water repellant has flame retardant performance, alcohol wiping resistance, good water repellency and long-lasting water repellency.

Embodiment 3

[0031] In a four-necked flask equipped with a stirrer, a thermometer, and a reflux tube, mix 1.5g of BPO initiator, 6g of hydroxypropyl acrylate, 12g of vinyl silicone oil (500cp), 4g of vinyl chloride, 60g of dodecyl acrylate with 100g The solvent (a blend of butanone 50g and butyl acetate 50g) was mixed evenly, and added dropwise to the reaction vessel at 85°C for 3 hours, then 18g of hexafluorobutyl acrylate was added dropwise for 1.5 hours, and finally mechanically stirred and kept for 4 hours. Finally, obtain a uniform solution viscous substance, which is the environmentally friendly flame-retardant and water-repellent agent for leather. The water repellent film formed by the obtained water repellant has flame retardant performance, alcohol wiping resistance, good water repellency and long-lasting water repellency.

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Abstract

The invention belongs to the field of leather finishing agents, and discloses an environmentally friendly flame-retardant and water-repellent agent for leather and a preparation method thereof. The preparation method is as follows: uniformly mix the initiator, conventional acrylate monomer, vinyl silicone oil, flame retardant vinyl monomer, long-chain alkyl acrylate and solvent, and add it dropwise to a temperature of 80-90°C within 2-4 hours. Then add fluorine-containing acrylate dropwise for 1 to 2 hours, and finally mechanically stir and keep warm for 3 to 5 hours, then cool to obtain the environmentally friendly flame retardant and waterproof agent for leather. The waterproofing agent obtained in the present invention has no yellowing, no delamination, and good stability; the formed waterproofing agent film has flame retardant performance, is resistant to alcohol wiping, has durable waterproof performance, and has no PFOS / PFOA harmful ingredients to the human body and the environment, and meets certain requirements. environmental requirements. It has good application and environmental protection prospects.

Description

technical field [0001] The invention belongs to the field of leather finishing agents, and in particular relates to an environmentally friendly flame-retardant and water-repellent agent for leather and a preparation method thereof. Background technique [0002] With the improvement of people's consumption concept and consumption level, people place higher requirements on leather. In addition to keeping warm and covering the body, it should also be beautiful and comfortable. Environmental protection, flame retardancy and other functions. [0003] Fluorine-containing acrylate copolymers, on the one hand, can maintain the good film-forming properties, flexibility, adhesion, and weather resistance of acrylate polymers; on the other hand, compared with silicones and hydrocarbons, they contain Fluoroacrylate has incomparable advantages in terms of water and oil repellency, stain resistance, and washability. The leather is treated with fluorine-containing acrylate water repellent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C08F283/12C08F220/18C08F214/08C08F214/06C08F220/56C08F220/22C08F220/28C14C11/00
CPCC09D151/085C14C11/003C08F283/124C08F220/1818C08F220/281C08F220/1812
Inventor 李恒王纲杨建宇吴小峰李志诚陈志华
Owner 清远市美佳乐环保新材股份有限公司
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