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Water-repellent and oil-repellent fabric finishing agent, as well as preparation method and applications thereof

A water and oil repellent and finishing agent technology, which is applied in fiber treatment, textiles and papermaking, etc., can solve the problems of migration and cumulative toxicity, and the difficulty of degradation of perfluorinated compounds, etc., and achieve excellent water and oil repellent finishing effect, Excellent water and oil repellency effect, good water and oil repellency effect

Active Publication Date: 2015-05-27
江苏华佳控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty of degradation of long carbon chain perfluorinated compounds, migration and cumulative toxicity, the EU has completely banned the production and use of perfluorooctane sulfonamide derivatives (PFOS), and the scope of prohibition does not only include perfluorooctane sulfonamide , including a series of compounds, additives and materials containing perfluorooctyl

Method used

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  • Water-repellent and oil-repellent fabric finishing agent, as well as preparation method and applications thereof
  • Water-repellent and oil-repellent fabric finishing agent, as well as preparation method and applications thereof
  • Water-repellent and oil-repellent fabric finishing agent, as well as preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Synthesis of bis(acryloxypropyl)tetramethyldisiloxane

[0031] In a three-necked flask with a capacity of 500ml, add 67.5g of allyl methacrylate and 150g of toluene, heat to 75°C, add 0.1ml of commercially available Castel catalyst (3000ppm), and blow nitrogen. Slowly add 30 g of tetramethyldisiloxane dropwise for 1.5 to 2 hours, and keep warm for 3 hours after the drop is completed. The reaction was stopped, cooled, and the solvent was removed by rotary evaporation under reduced pressure at 75°C for 80 minutes to obtain a colorless and transparent liquid product which was the addition product bis(acryloyloxypropyl)tetramethyldisiloxane.

[0032] The hydrosilylation reaction of tetramethyldisiloxane and allyl acrylate to prepare bis(acryloyloxypropyl)tetramethyldisiloxane is as follows:

[0033]

[0034]

[0035] 2. Preparation of Tridecafluorooctyl Acrylate Copolymer Emulsion Finishing Agent

[0036] By weight, add 0.6 g of emulsifier SDS and 0.6 g of emulsifi...

Embodiment 2

[0048] 1. Preparation of Tridecafluorooctyl Acrylate Copolymer Emulsion Finishing Agent

[0049] By weight, add 0.6 g of emulsifier SDS and 0.6 g of emulsifier AEO-9 into 80 g of water, stir in a high-speed shear emulsifier at 8000 rpm for 1 minute, then add tridecafluorooctyl acrylic acid 9.2 grams of esters, 13.0 grams of butyl acrylate, 6.1 grams of methyl methacrylate, 1.0 grams of hydroxyethyl acrylate and 0.45 grams of bis(acryloyloxypropyl) tetramethyldisiloxane, the mixture is at 11000 rpm Stir for 15 minutes at a speed of 10 minutes to obtain a mixed monomer pre-emulsion.

[0050] In a reactor equipped with a thermometer, a constant pressure dropping funnel and a reflux condenser, add the mixed monomer pre-emulsion, stir, and after heating to 75°C, add 10 parts of 20% sodium persulfate aqueous solution. . After heat preservation and reaction at 75-80°C for 4 hours, stop the reaction, cool the reaction solution, and obtain a bluish and translucent silicone-oxygen bon...

Embodiment 3

[0056] 1. Preparation of Tridecafluorooctyl Acrylate Copolymer Emulsion Finishing Agent

[0057] By weight, add 0.6 g of emulsifier SDS and 0.6 g of emulsifier Span-60 into 80 g of water, stir in a high-speed shear emulsifier at 9000 rpm for 1 minute, then add tridecafluorooctyl Acrylate 9.5 grams, butyl acrylate 13.2 grams, methyl methacrylate 6.3 grams and hydroxyethyl acrylate 1.0 grams, the mixture was stirred at 10,000 rpm for 25 minutes to obtain a mixed monomer pre-emulsion.

[0058] In a reactor equipped with a thermometer, a constant pressure dropping funnel and a reflux condenser, add the mixed monomer pre-emulsion, stir, and after heating to 75°C, add 8 parts of ammonium persulfate aqueous solution with a mass concentration of 10%, and then add 8 parts of ammonium persulfate aqueous solution at 75 After holding the reaction at ~80°C for 2 hours, stop the reaction, cool the reaction solution, and discharge to obtain a non-crosslinked fluorine-containing copolymer emu...

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Abstract

The invention discloses a water-repellent and oil-repellent fabric finishing agent, as well as a preparation method and applications thereof. The preparation method comprises the steps of: preparing a mixed monomer from tridecafluorooctyl acrylate, butyl acrylate, metyl methacrylate or methyl acrylate as well as hydroxyalkyl acrylate, and bis(acryloxypropyl) tetramethyl disiloxane, and initiating radical copolymerization with waterborne initiator under the action of a compound emsulsifying agent to obtain a fluorine-containing copolymer emulsion type water-repellent and oil-repellent finishing agent with excellent stability. According to the water-repellent and oil-repellent fabric finishing agent, a slightly crosslinked net structure is introduced in a fluorine-containing prepolymer, a compact polymer film and dense fluoroalkyl covering are formed on the surfaces of fibers in an adhering manner when the fabric is in finishing, so that a relatively good fluoroalkyl shielding effect can be favorably provided for the fibers, thereby achieving the excellent water-repellent and oil-repellent finishing effect, and having no influence on the fabric finishing handfeeling. The fabric finishing agent is simple and convenient in preparation technique, mild in reaction conditions, and suitable for industrialized production.

Description

technical field [0001] The invention relates to a finishing technology of textiles, in particular to a fabric finishing agent, a preparation method and an application thereof. Background technique [0002] In the process of fabric finishing, it is found that finishing fabrics with fluorine-containing alkyl compounds can endow fabrics with excellent amphiphobic properties—hydrophobic and oleophobic properties. A series of water- and oil-repellent finishing agents have thus been developed. These studies have greatly enriched It has become an important branch in the research field of organic fluorine materials, and has received great attention from researchers at home and abroad. After more than 60 years of research and development, fluorine-containing fabric finishing agents have been commercialized and occupy a large market. [0003] Fluorine-containing acrylate polymer finishing agent is the most widely used fluorine-containing fabric finishing agent, and its active ingredi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/356C08F220/18C08F220/22C08F220/14C08F220/28C08F230/08C08F2/30C08F2/26
Inventor 李战雄单良张佳平吴林臧雄
Owner 江苏华佳控股集团有限公司
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