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Fluorinated textile finishing agent composition and preparation method therefor

A technology for fabric finishing agent and composition, which is applied in the directions of fiber treatment, textile and paper making, etc., can solve the problems of insufficient oil repellency and unsatisfactory oil repellency of the composition.

Active Publication Date: 2015-11-25
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN100379777C describes the water and oil repellent composition based on the fluorinated polymer of perfluoroalkyl chain acrylate with Rf of 3 or 4 carbons, and clearly limits the molecular weight of the obtained fluorinated polymer, so The use of its composition is limited; the patents CN1942541B, CN1305993C, CN101006149A and CN1878846B of Daikin Industry Co., Ltd. respectively report that polyfluoroalkyl or polyfluoroalkenyl groups with 1 to 6 carbon atoms are prepared as polymerized monomers A waterproof and oil-repellent composition with excellent stability is obtained, and the obtained composition has good waterproof performance, but the oil-repellent performance is not ideal; patent CN102060956B discloses a perfluoroalkyl acrylate with 6 or 9 carbon atoms as a polymeric unit The water-repellent and oil-repellent fluorine-containing fabric finishing agent prepared by the composite has simple operation and low cost, but the oil-repellent performance of the obtained composition is not excellent enough

Method used

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  • Fluorinated textile finishing agent composition and preparation method therefor
  • Fluorinated textile finishing agent composition and preparation method therefor
  • Fluorinated textile finishing agent composition and preparation method therefor

Examples

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preparation example Construction

[0033] According to the preparation method provided by the above-mentioned technical scheme:

[0034] In some embodiments, in Formula I, Rf is selected from perfluoroalkyl groups with 4 or 6 carbon atoms.

[0035] In some embodiments, the perfluoroalkyl acrylate monomer is selected from perfluorobutyl (meth)acrylate, perfluorohexyl (meth)acrylate, perfluorobutyl acrylate, perfluorohexyl acrylate one or both.

[0036] In some embodiments, based on a total of 100 parts by mass, the added amounts of perfluoroalkyl acrylate monomers, fatty alcohol acrylate monomers, and crosslinking monomers are 30-60 parts, 20-50 parts, 2- 10 parts, the balance is reinforcing monomer.

[0037] In some embodiments, the emulsifier is a composite emulsifier of a cationic emulsifier and a nonionic emulsifier, wherein the cationic emulsifier is selected from dodecyltrimethylammonium bromide, cetyltrimethylammonium bromide, One of cetyltrimethylammonium chloride and octadecyltrimethylammonium chlori...

specific Embodiment approach

[0058] What is described below is the embodiment of the present invention, and what the present invention protects is not limited to the following embodiment. It should be pointed out that for those skilled in the art, some modifications and improvements made on the basis of this inventive concept all belong to the protection scope of the present invention. The raw materials used in the examples are all commercially available.

[0059] The percentages described in the following examples are mass fractions unless otherwise specified.

Embodiment 1

[0061] With 165g perfluorobutyl (meth) ethyl acrylate, 105g octadecyl acrylate, 24g N-methylol acrylamide, 8g alkylphenol polyoxyethylene (10) ether; 8g polyoxyethylene sorbitan fatty acid ( 80) Ester, 8g of cetyltrimethylammonium chloride, 160g of polyethylene glycol, 0.5g of n-hexadecylmercaptan, and 560g of deionized water were added to the container, mechanically stirred at 50°C and 700rpm for 10min, at room temperature, 12000rpm high-speed disperser was used for pre-emulsification for 15 minutes, the pre-emulsion was cooled to below 30°C, and 36g of vinylidene chloride was added; 1.7g of ammonium persulfate was added at 70°C, and the polymerization was carried out for 3.5h. The resulting emulsion had a solids content of about 27%. Dilute to 0.5% emulsion with deionized water, add 2% fiber crosslinking agent, and carry out after-treatment on cotton, polyester and nylon fabrics respectively.

[0062] Carry out waterproof test, oil resistance level test and washing durabili...

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Abstract

The invention discloses a fluorinated textile finishing agent composition and a preparation method therefor. The composition comprises a polymer which is prepared through emulsifying monomers and other adjuvants by an emulsifier to initiate polymerization, wherein the monomers consist of the ingredients in parts by mass: 30-70 parts of perfluoroalkyl acrylate monomer, 10-60 parts of fatty alcohol acrylate monomer, 1-30 parts of cross-linking monomer and the balance of reinforcing monomer, and all the ingredients are 100 parts in total. The method comprises the following steps: stirring to disperse the perfluoroalkyl acrylate monomer, the fatty alcohol acrylate monomer, the cross-linking monomer, the emulsifier, a cosolvent, a chain transfer agent and water in a reactor, and then, carrying out pre-emulsification; adding the reinforcing monomer into the pre-emulsification at the temperature of 0-30 DEG C; and heating the reinforcing monomer added pre-emulsification to the temperature of 50-80 DEG C, and adding an initiator into the heated pre-emulsification so as to carry out polymerization reaction. The textile finishing agent prepared according to the method is environment-friendly and is low in cost, excellent in waterproof and oilproof performance and good in durability.

Description

technical field [0001] The invention relates to a fabric finishing agent, in particular to a fabric finishing agent composition for imparting durable water and oil repellency to fabrics and a preparation method thereof. Background technique [0002] At present, the water-repellent and oil-repellent finishing agents with the best comprehensive performance are fluorine-containing organic polymers. Perfluoroalkyl ethyl (meth)acrylate polymer has become the mainstream product of fluorine-containing fabric finishing agents at home and abroad due to its excellent surface properties. The fabric finishing prepared when the carbon number of perfluoroalkyl is 8 The agent has the best water and oil repellency. However, there is a possibility of degradation to produce perfluorooctane sulfonyl compound (PFOS) / perfluorooctanoic acid ammonium (PFOA), and the European Parliament has passed a resolution to completely ban its use in commodities. Therefore, the development of short perfluoro...

Claims

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Application Information

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IPC IPC(8): C08F220/24C08F220/18C08F214/00C08F212/08C08F220/56C08F220/58C08F220/28D06M15/277D06M15/29D06M15/233
Inventor 李义涛侯琴卿冯海兵何浩鹏张兵兵陆翠方
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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