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water and oil repellent

A water-repellent, oil-repellent, fluorine-free technology, applied in textiles, papermaking, fiber treatment, etc., can solve problems such as poor water and oil repellency

Active Publication Date: 2017-04-12
TAIWAN FLUORO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When Rf is reduced to a fluoroalkyl group with 4 to 6 carbon atoms, the waterproof and oil-proof function of the surface treatment agent will be deteriorated, and vinyl chloride or vinylidene chloride must be used to improve its effect; however, the use of vinyl chloride or vinylidene chloride The mixture of ethylene olefinic monomer and perfluoroalkylethyl methacrylate is used for effective water repellency and good water resistance of textile processing fibers, but there is still the problem of adhesion to rollers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0057] Production example 1, as shown in Table 3, 15 g of isobornyl acrylate (IBOA), 2 g of 2-methyl-2-acrylic acid-2,3-dihydrocarbyl propyl ester (GLA), 6 g of diacetone acrylamide (DAAM) , n-dodecanemercaptan (0.75g), 43.5g of dipropylene glycol methyl ether and 300g of deionized water were stirred at 50°C for 20 minutes, and a stable homogeneous emulsion was obtained by high-pressure homogenization under a pressure of 40MPa, using UV at a wavelength of 650nm Its penetration needs to be greater than 15%T. Put the high-pressure homogeneous emulsion into a 1L four-neck glass reaction bottle, add 0.8g of 2,2'-azobisisobutylamidine dihydrochloride, 45g of vinylidene chloride (VDC), and react at 60°C for 6 hours , to obtain an aqueous dispersion of fluorine-free polymers. The above-mentioned aqueous dispersion of fluorine-free polymers was mixed in a ratio of 3 into Comparative Example 1 to obtain an aqueous dispersion of fluorine-containing and fluorine-free hybrid polymers.

manufacture example 2

[0058] Manufacturing Example 2, as shown in Table 3, stearyl acrylate (SA) 15g, glycidyl methacrylate (GMA) 2.5g, diacetone acrylamide (DAAM) 6g, n-dodecyl mercaptan (0.75g ), 43.5 g of dipropylene glycol methyl ether and 300 g of deionized water were stirred at 50° C. for 20 minutes, and homogenized under high pressure at a pressure of 40 MPa. Put the high-pressure homogeneous emulsion into a 1L four-neck glass reaction bottle, add 0.8g of 2,2'-azobisisobutylamidine dihydrochloride, 45g of vinylidene chloride (VDC), and react at 60°C for 6 hours , to obtain an aqueous dispersion of fluorine-free polymers. The above-mentioned aqueous dispersion of fluorine-free polymers was mixed in a ratio of 3 into Comparative Example 1 to obtain an aqueous dispersion of fluorine-containing and fluorine-free hybrid polymers.

manufacture example 3

[0059] Manufacturing example 3, as shown in Table 3, perfluorooctyl alcohol methacrylate (6FMA) 75g, isobornyl acrylate (IBOA) 15g, glycidyl methacrylate (GMA) 2.5g, diacetone acrylamide (DAAM) 6g, n-dodecanemercaptan 0.75g, dipropylene glycol methyl ether 43.5g and deionized water 300g were stirred at 50°C for 20 minutes, and homogenized under high pressure at 40MPa. Put the high-pressure homogeneous emulsion into a 1L four-neck glass reaction bottle, add 0.8g of 2,2'-azobisisobutylamidine dihydrochloride, 28g of vinylidene chloride (VDC), and react at 60°C for 6 hours , to obtain an aqueous dispersion of acrylic polymer. Mix Comparative Example 2 in a ratio of 3 into the above-mentioned aqueous dispersion of acrylic polymers to obtain an aqueous dispersion of fluorine-containing and non-fluorine hybrid polymers.

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Abstract

The invention provides a water and oil repellent agent which is formed by mixing fluorine-containing polymers with fluorine-free polymers, wherein the fluorine-containing polymers are formed by polymerizing fluorine-containing monomers, non-fluorinated branched chain type monomers, non-fluorinated crosslinking monomers and olefin monomers; the fluorine-free polymers are formed by polymerizing non-fluorinated non-crosslinking monomers, non-fluorinated crosslinking monomers and olefin monomers. Therefore, according to the water and oil repellent agent, a good water and oil repellent effect can be achieved, and the adhesion of the water and oil repellent agent on a roller can be improved; in addition, the usage of fluorine can be reduced, and further the harm to the environment and human bodies is reduced.

Description

technical field [0001] The present invention relates to a water and oil repellent agent; in particular, it refers to a water and oil repellent agent with a fluorine-free mixed polymer. Background technique [0002] Fluorine-containing compounds are often used as surface treatment agents and are widely used in the surface treatment of substrates, such as textiles, wood, metal, concrete, etc. The substrates that can show better results are textiles, which include natural fibers, synthetic For fibers and semi-synthetic fibers, this fluorine-containing chemical can make the surface of the fibers water-repellent and oil-repellent. In the past, for the purpose of imparting water repellency or antifouling properties in fiber products, water and oil repellent components with perfluoroalkyl groups having more than 8 carbon numbers were used, such as the right formula H2C=C(X)C( =O)-Y-Z-Rf refers to perfluoroalkyl ethyl acrylate, when Rf is a fluoroalkyl group with 8 carbon atoms, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/285C08F214/08C08F220/18C08F220/58C08F220/32C08F220/22
Inventor 黄若渝邱人仁何日兴
Owner TAIWAN FLUORO TECH
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