Cationic water-based fluoropolymer emulsion and preparation method thereof

A polymer emulsion, cationic technology, applied in the field of cationic water-based fluoropolymer emulsion and its preparation, can solve the problems of no flocculation ability, inability to eliminate static electricity, inability to achieve low pollution, antibacterial, antistatic and flocculation, etc. Avoid the effects of easy migration, improved water resistance, and safe product use

Inactive Publication Date: 2017-01-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in sewage treatment, dyeing and printing industry, anti-static materials, etc., conventionally prepared polymer emulsions also have many practical application problems, such as no flocculation ability, static electricity cannot be eliminated, etc.
For example, the water-based fluororesin emulsions disclosed in the invention patents CN1362422A and CN1322275A belong to anionic emulsions, all of which have different degrees of shortcomings, so the above-mentioned purposes of low pollution, antibacterial, antistatic and flocculation cannot be achieved.

Method used

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  • Cationic water-based fluoropolymer emulsion and preparation method thereof
  • Cationic water-based fluoropolymer emulsion and preparation method thereof
  • Cationic water-based fluoropolymer emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Vinyl acetate 142.07g, vinyl tertiary carbonate 46.90g, butyl acrylate 46.95g, nonylphenol polyoxyethylene (n=10) maleate diester ethyltrimethylammonium chloride 5.32g, Put 4.06 g of styrylphenol polyoxyethylene ether and 136.14 g of deionized water into a container, and disperse and emulsify for 20 to 30 minutes to prepare a pre-emulsified monomer liquid.

[0028] 1.68 g of 2,2'-azobis(2-methylpropylamidine) dihydrochloride (AIBA) aqueous solution was added to 89.30 g of deionized water to prepare an aqueous initiator solution.

[0029] Take 10% emulsified monomer solution, 20% initiator aqueous solution, nonylphenol polyoxyethylene (n=10) maleic acid diester ethyltrimethylammonium chloride 1.63g, styrylphenol polyoxyethylene Add 1.25g of ether and 190.46g of deionized water into the reaction kettle with mechanical stirring, thermocouple, heating and cooling pipes, vacuumize, fill with nitrogen, and after vacuuming and repeating 3 times, add 96g of chlorotrifluoroethyl...

Embodiment 2

[0031] Vinyl acetate 189.28g, butyl acrylate 47.21g, dodecylpolyoxyethylene (n=10) maleic acid diester ethyltrimethylammonium chloride 5.31g, styrylphenol polyoxyethylene 4.06 g of base ether and 104.18 g of deionized water were put into a container and emulsified by a high-shear emulsifier for 20 to 30 minutes to prepare a pre-emulsified monomer liquid.

[0032] 1.68 g of 2,2'-azobis(2-methylpropylamidine) dihydrochloride (AIBA) aqueous solution was added to 89.30 g of deionized water to prepare an aqueous initiator solution.

[0033] Get 8% emulsified monomer solution, 20% initiator aqueous solution, dodecyl polyoxyethylene group (n=10) ethylmaleic acid diester trimethylammonium chloride 1.64g, styrylphenol polyoxyethylene Add 1.25g of base ether and 190.68g of deionized water into a reaction kettle with a mechanical stirring device, a thermocouple, a heating device and a cooling pipe, vacuumize, fill with nitrogen, and after vacuumizing and repeating 3 times, add trifluoro ...

Embodiment 3

[0035] 140.65g of vinyl acetate, 47.26g of vinyl tert-carbonate, 47.65g of butyl acrylate, 5.22g of octadecyl polyoxyethylene (n=20) maleic acid diester ethyl trimethyl ammonium chloride , 4.08 g of fatty alcohol polyoxyethylene ether, and 104.41 g of deionized water were put into a container to disperse and emulsify for 20 to 30 minutes to prepare a pre-emulsified monomer liquid.

[0036] 1.40 g of 2,2'-azobis(2-methylpropylamidine) dihydrochloride (AIBA) was added to 74.47 g of deionized water to prepare an aqueous initiator solution.

[0037]Get 15% emulsified monomer solution, 20% initiator aqueous solution, stearyl polyoxyethylene (n=20) maleic acid diester ethyl trimethyl ammonium chloride 1.54g, nonylphenol polyoxyethylene Add 1.21g of ether and 189.45g of deionized water into the reaction kettle with mechanical stirring, thermocouple, heating and cooling pipes, vacuumize, fill with nitrogen, and after vacuumizing and repeating 3 times, add 76g of chlorotrifluoroethylen...

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Abstract

The invention provides a cationic type water-based fluoropolymer emulsion and a preparation method thereof. The cationic type water-based fluoropolymer emulsion is prepared from the following constituents in parts by weight: 10-20 parts of a fluorine-containing monomer, 20-40 parts of an alkyl acid vinyl ester monomer, 5-15 parts of acrylate and / or methyl acrylate, 0.5-1.5 parts of a quaternary ammonium salt polymerizable emulsifier, 0.5-1.0 part of a non-ionic emulsifier, 0.1-1.0 parts of an azo water soluble initiator, and 40-60 parts of deionized water. The cationic type water-based fluoropolymer emulsion is good in stability and high in solid content, and has the characteristics of being capable of adsorbing negative charges, antistatic, corrosion-resistant, bactericidal, low in moisture absorption and the like. The invention further discloses a preparation method for the cationic type water-based fluoropolymer emulsion. The cationic type water-based fluoropolymer emulsion disclosed by the invention can be widely applied to the fields such as anti-bacteria coatings, anti-static materials, electronic packaging materials and textile finishing.

Description

technical field [0001] The invention relates to fluoropolymer emulsion technology, in particular to a cationic water-based fluoropolymer emulsion and a preparation method thereof. Background technique [0002] The water-based fluoropolymer emulsion endows the polymer with many excellent properties due to the existence of a large number of carbon-fluorine bonds in the molecular structure of the polymer, such as weather resistance, heat resistance, water and oil repellency, corrosion resistance, etc., in durable coatings, The fields of textile finishing, leather and paper treatment have a very wide range of applications. [0003] With the advancement of science and technology, social development and the improvement of people's living standards, the living environment is required to be more environmentally friendly, healthy and safe, and a durable and safe material is required, such as antibacterial coatings. Adding antibacterial agents such as isothiazolinone, heavy metal ion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F218/08C08F218/10C08F218/04C08F214/24C08F220/14C08F220/18C08F2/24C08F2/30C08F4/04
Inventor 刘洪珠边继明
Owner DALIAN UNIV OF TECH
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