Vinyl fluorine-containing copolymer, waterproof and oil-proof composition containing vinyl fluorine-containing copolymer, and application thereof

A vinyl-based, water- and oil-repellent technology, applied in non-fiber pulp addition, retention aid addition, papermaking, etc., can solve the problems of inability to prevent oil, poor waterproof and oil-repellent performance, and heat-resistant oil, and achieve stable performance, reduce product cost, and improve waterproof and oil-proof effects

Active Publication Date: 2020-04-21
GUANGZHOU SHINE POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] US6447588B1 discloses a water-dispersible water- and oil-repellent composition, preferably using polyfluoroalkyl phosphates with 2-20 carbon atoms, which have good storage stability. Since phosphates are water-soluble, there are Can not endow the paper with good waterproof performance, it must be used with a special waterproof agent to achieve the waterproof effect
CN102333915A discloses a non-fluorine aqueous dispersion with paraffin and acrylate copolymer as the main components, which can only achieve a certain waterproof effect but not oil resistance, and the melting point of paraffin is low, especially not heat-resistant oil; US2010018659A1 discloses A fluorocarbon siloxane copolymer has been developed, which needs to be emulsified by an emulsifier before it can be used. The waterproof and oil-proof performance is poor, and the retention effect is not good, so it needs to be used in conjunction with a retention aid; Water and oil repellents, which are copolymerized by using fluorine-containing monomers having 1 to 6 carbon atoms, vinylpyrrolidone monomers, monomers having anion-donating groups, and other fluorine-free (meth)acrylate monomers, Form a fluorine-containing copolymer, neutralize the anion-supplying group with a base such as ammonia and an organic amine after copolymerization, or use an anion-supplying group monomer that has been neutralized with a base in advance to carry out copolymerization, and prepare a waterproof and oil-repellent composition Has an odor caused by ammonia or organic amines; CN109247021A discloses a liquid repellent composition comprising a copolymer A, an alkali metal ion and an aqueous medium, wherein the copolymer A is composed of a perfluoroalkyl group containing 4 to 6 carbons A fluorine-containing copolymer with a mass average molecular weight of less than 84,000 obtained by polymerizing monomers, (meth)acrylic acid, and monomers with (poly)oxyalkylene groups, and then the copolymer solution is treated with alkali metal hydroxide and mixed with water to obtain the dispersion of the copolymer A
The waterproof and oil-proof compositions described in CN102762618A and CN109247021A all need to be used in conjunction with waterproofing agents such as AKD waterproof emulsion, and the retention effect is not good

Method used

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  • Vinyl fluorine-containing copolymer, waterproof and oil-proof composition containing vinyl fluorine-containing copolymer, and application thereof
  • Vinyl fluorine-containing copolymer, waterproof and oil-proof composition containing vinyl fluorine-containing copolymer, and application thereof
  • Vinyl fluorine-containing copolymer, waterproof and oil-proof composition containing vinyl fluorine-containing copolymer, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Add 250 parts of propylene glycol methyl ether as a solvent in a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a condenser tube, turn on the stirrer, and add 40 parts of CH 2 =CH-C(=O)-O-CH 2 CH 2 -F(CF 2 ) 6 , 30 parts of methyl methacrylate, 25 parts of dimethylaminoethyl methacrylate and 5 parts of acrylic acid and 1 part of 2,2'-azobisisobutyronitrile, 0.5 parts of dodecyl mercaptan Mix evenly, add to a four-neck flask under nitrogen atmosphere, react at 60°C for 10 hours, complete polymerization, cool to room temperature to obtain a vinyl-based fluorine-containing copolymer solution, and prepare it into a water-soluble solution with 1% HCl solution ammonium salt, and finally diluted with deionized water to form a water-dispersed water- and oil-repellent composition with a solid concentration of 20%.

Embodiment 2

[0071] Add 250 parts of propylene glycol methyl ether as a solvent in a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a condenser tube, turn on the stirrer, and add 40 parts of CH 2 =CH-C(=O)-O-CH 2 CH 2 -F(CF 2 ) 6 , 30 parts of ethyl acrylate, 25 parts of dimethylaminoethyl methacrylate and 5 parts of acrylic acid are mixed with 1 part of 2,2'-azobisisobutyronitrile and 0.5 parts of dodecyl mercaptan , added to a four-necked flask under a nitrogen atmosphere, reacted at 60°C for 10 hours, completed the polymerization, cooled to room temperature, and obtained a vinyl-based fluorine-containing copolymer solution, which was formulated into a water-soluble ammonium with 1% HCl solution salt, and finally diluted with deionized water to form a water-dispersed water- and oil-repellent composition with a solid concentration of 20%.

Embodiment 3

[0073] Add 250 parts of propylene glycol methyl ether as a solvent in a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a condenser tube, turn on the stirrer, and add 40 parts of CH 2 =CH-C(=O)-O-CH 2 CH 2 -F(CF 2 ) 6, 30 parts of isobutyl methacrylate, 25 parts of dimethylaminoethyl methacrylate and 5 parts of acrylic acid and 1 part of 2,2'-azobisisobutyronitrile, 0.5 parts of dodecyl sulfide Mix the alcohol evenly, add it into a four-necked flask under nitrogen atmosphere, react at 60°C for 10 hours, complete the polymerization, cool to room temperature, and obtain a vinyl-based fluorine-containing copolymer solution, which is formulated with 1% HCl solution into The water-soluble ammonium salt is finally diluted with deionized water to form a water-dispersed water- and oil-repellent composition with a solid concentration of 20%.

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Abstract

The invention provides a novel vinyl fluorine-containing copolymer. The vinyl fluorine-containing copolymer is obtained by free radical copolymerization of a short-chain fluorine-containing monomer, aquaternary amine acrylate monomer and an acrylic monomer, and the prepared waterproof and oil-proof composition is applied to a paper-based product and can be more easily combined with negatively charged hydroxyl in paper fibers, so that a good retention aid effect is achieved. The adopted fluorine-containing monomer is a short-chain fluorine-containing monomer, so that PFOA/PFOS which has bioaccumulation and is difficult to degrade is not generated, the environment is not polluted, and damage to organisms is avoided. The prepared waterproof and oil-proof composition has better waterproof andoil-proof effects when being applied to paper-based products.

Description

technical field [0001] The invention belongs to the field of waterproof and oil-proof coatings for paper-based products, and in particular relates to a waterproof and oil-proof composition containing a vinyl-based fluorine-containing copolymer and an application thereof. Background technique [0002] With the continuous development of modern technology, pulp molded products (paper plastic) has become a recognized green packaging material. Paper plastic is a kind of packaging material obtained by using primary fiber or secondary fiber as the main raw material, dehydrating the fiber with a special mold, and then drying and shaping it. Paper plastic has the advantages of cheap and easy-to-obtain raw materials, no pollution in the production process, good shock resistance, cushioning, breathability, anti-static performance, recyclable and easy to degrade, etc., so it has a broad application in the packaging fields of electronic products, daily chemical products, fresh products, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/22C08F220/14C08F220/34C08F220/06C08F220/18D21H17/37D21H21/10
CPCC08F220/22D21H17/37D21H21/10C08F220/14C08F220/34C08F220/06
Inventor 刘伟时陈楚亮石建伟韩泽明胡龙林观生
Owner GUANGZHOU SHINE POLYMER TECH
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