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Fluorine-containing resin emulsion and preparation method thereof

A technology of fluorine-containing resin and resin emulsion, which is applied in the field of fluorine-containing resin emulsion and its preparation, can solve the problems of organic solvents polluting the environment and increasing costs, and achieve the effect of good hydrophobic and oleophobic ability

Inactive Publication Date: 2010-01-27
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Xu Pingxian, Lu Qingtian, etc. in their patent (CN1450091A) are that fluorocarbon resin is made by copolymerization of fluorochloroethylene and enester, alkene acid and enene ether. Although the product has low surface energy, the volatilization of organic solvents will pollute the environment. And while achieving the best effect, the consumption of chlorofluoroethylene has reached 40%, and expensive raw materials will inevitably increase the cost

Method used

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  • Fluorine-containing resin emulsion and preparation method thereof
  • Fluorine-containing resin emulsion and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: nuclear emulsion composition

[0026] Composition

[0027] Shell emulsion composition:

[0028] Composition

[0029] Preparation method: the reaction temperature is 50°C, first add part of the initiator into the four-neck flask, then add the nuclear pre-emulsion to it, and continue the reaction for 5 hours. Add the initiator and the shell pre-emulsion to the above-mentioned core seed emulsion at the same time, and continue to react for 0.5 hours to prepare a bluish fluorescent core-shell polymer emulsion, which can be formed into a film at room temperature after coating, and the static water contact angle is 109°.

Embodiment 2

[0030] Embodiment 2: nuclear emulsion composition

[0031] Composition

[0032] Shell emulsion composition:

[0033] Composition

[0034] Preparation method: Add 130ml of water containing part of the emulsifier into a four-necked flask equipped with a stirrer and a thermometer. The reaction temperature is 60°C, the stirring speed is about 200r / min, and nitrogen protection is used. After the temperature is balanced, add 9g of nuclear group After dividing the pre-emulsion (containing 0.21g ammonium persulfate and 0.17g sodium bisulfite), add 27g core component pre-emulsion (containing 0.31g ammonium persulfate) and 50ml of sodium bisulfite (0.0024g) solution, The temperature was maintained at 60° C. for 60 minutes to obtain a nuclear emulsion. Keeping the temperature of the reaction system constant, add 145g of shell component pre-emulsion (containing 0.19g of ammonium persulfate) and 80ml of sodium bisulfite (0.16g) solution to the obtained core emulsion, a...

Embodiment 3

[0035] Embodiment 3: nuclear emulsion composition

[0036] Composition

[0037] Shell emulsion composition:

[0038] Composition

[0039] Preparation method: Add 103ml of water containing part of the emulsifier to a four-necked flask equipped with a stirrer and a thermometer, add 0.2g of sodium bicarbonate and 73g of nuclear pre-emulsion (containing 0.005g of ammonium persulfate), and the reaction temperature is 80°C. Stirring speed is about 200r / min. Then, 7 g of nuclear pre-emulsion and 10 ml of sodium persulfate (containing 0.01 g) solution were added thereto under the protection of nitrogen, and the nuclear emulsion was obtained after reacting for 1 hour. Dissolve ammonium persulfate (0.5g) in 20ml of water, add 5g of the shell pre-emulsion to the above-mentioned core seed emulsion at the same time, react for 0.5 hours to prepare a core-shell polymer emulsion, and then add 2,4-toluene diisocyanate (5g) , That is, room temperature cross-linking type fluo...

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Abstract

The invention discloses a fluorine-containing resin emulsion and a preparation method thereof. The fluorine-containing monomer structures are shown in (FA1), (FA2) and (FA3), wherein Rf is a C2-C21 linear or branched fluoroalkyl or perfluoroalkyl; R1 is a hydrogen atom or C1-C8 linear or branched alkyl; and R2 is C1-C20 linear or branched alkyl. The fluorine-containing resin emulsion is prepared by using the vinyl monomer copolymer as a nucleus, using the fluorine-containing monomer copolymer as a shell and adopting the nucleus-shell emulsion copolymerization technology. The fluorine-containing resin emulsion can be widely used for anti-corrosion and anti-pollution paint, such as prevention of corrosion of bridge buildings and prevention of corrosion and pollution of ships, can also be used in fields, such as functional finishing of fiber surfaces, prevention of water and oil of leather and the like, and has significant development value and application value.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a fluorine-containing resin emulsion and a preparation method thereof. The fluorine-containing resin emulsion can be used as a highly anti-fouling paint, and can also be used as a hydrophobic and oil-repellent treatment agent for fibers and their textile fabrics. Background technique [0002] Fluorine-containing resin is a kind of resin formed by the polymerization of fluorine-containing olefin or copolymerization of fluorine-containing olefin and other monomers, and fluorine-containing coating is a coating made of fluorine-containing resin as one of the main components. Due to the presence of a large number of C-F bonds in the main chain structure of the polymer, it endows the polymer with excellent weather resistance, corrosion resistance, stain resistance, heat resistance, chemical resistance, and hydrophobic and oil-repellent properties. Fluorocarbon resins and coatings have s...

Claims

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Application Information

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IPC IPC(8): C08F291/00C08F265/04C08F279/00C08F257/02C08F265/08C08F2/24
Inventor 王忠刚程耀波
Owner DALIAN UNIV OF TECH
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