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 ene

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1: Core emulsion composition

[0026] Constituent substance

[0027] Shell emulsion composition:

[0028] Constituent substance

[0029] Preparation method: the reaction temperature is 50° C., first add part of the initiator to the four-neck bottle, then add the nuclear pre-emulsion to it, and continue the reaction for 5 hours. The initiator and the shell pre-emulsion were simultaneously added to the above-mentioned core seed emulsion, and the reaction was continued for another 0.5 hours to prepare a blue 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°.

Example Embodiment

[0030] Example 2: Core emulsion composition

[0031] Constituent substance

[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℃, the stirring speed is about 200r / min, nitrogen protection, after the temperature is balanced, add 9g nuclear group After dividing the pre-emulsion solution (containing 0.21g ammonium persulfate and 0.17g sodium bisulfite), add 27g nuclear component pre-emulsion solution (containing 0.31g ammonium persulfate) and 50ml of sodium bisulfite (0.0024g) solution, The reaction was maintained at 60°C for 60 minutes to obtain a core emulsion. Keep the temperature of the reaction system unchanged, then add 145g of pre-emulsified shell component (containing 0.19g ammonium persulfate) and 80ml of sodium bisulfite (0.16g) solution to the obtained core emulsion, react at a consta...

Example Embodiment

[0035] Example 3: Core emulsion composition

[0036] Composition

[0037] Shell emulsion composition:

[0038] Constituent substance

[0039] Preparation method: Add 103ml of water containing part of the emulsifier into 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), the reaction temperature is 80°C, The stirring speed is about 200r / min. Then, under the protection of nitrogen, 7 g of the nuclear pre-emulsion and 10 ml of sodium persulfate (containing 0.01 g) solution were added, 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 core seed emulsion at the same time, react for 0.5 hours to prepare the core-shell polymer emulsion, then add 2,4-toluene diisocyanate (5g) , That is, a room temperature cross-linked fluorine-containing resin emulsion...

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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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