Method for preparing short-chain branch water and oil repellent finishing agent containing modified nano-oxide and fluorine

A nano-oxide and finishing agent technology, applied in fiber treatment, textiles and papermaking, etc., can solve the problems of high bioaccumulation and toxicity, low surface energy, unfavorable environment, etc., and achieve excellent water and oil repellency, enhanced repellency Water and oil repellency, high safety effect

Inactive Publication Date: 2011-05-04
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although fluorine-containing compounds have important applications in water and oil repellent finishing, most of the traditional organic fluorine finishing agents are perfluorooctane sulfonic acid polymers. Due to the long-chain branched fluoroalkyl group structure, it has Low surface energy, but such substances have high bioaccumulation and toxicity, and are currently the most difficult to degrade persistent organic pollutants, which is very detrimental to the environment

Method used

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  • Method for preparing short-chain branch water and oil repellent finishing agent containing modified nano-oxide and fluorine
  • Method for preparing short-chain branch water and oil repellent finishing agent containing modified nano-oxide and fluorine

Examples

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Effect test

example 1

[0019] Take 13.20g of hexafluorobutyl methacrylate, 2.68g of methyl methacrylate, 3.36g of n-butyl acrylate, 1.08g of ureidomethacrylate, 1.28g of hexadecyltrimethylammonium bromide, and 1.28g of perfluorinated Put 0.64g of alkyl alcohol polyoxyethylene ether and 50g of deionized water in a beaker, emulsify with a high-speed emulsifier, and set aside; weigh 0.192g of ammonium persulfate and dissolve it in 10g of deionized water, set aside; 3.30g of fluorobutyl ester, 0.67g of methyl methacrylate, 0.84g of n-butyl acrylate, 0.27g of ureidomethacrylate, 0.048g of ammonium persulfate, 0.32g of cetyltrimethylammonium bromide, Put 0.16g of fluoroalkyl alcohol polyoxyethylene ether, 1.2g of modified titanium dioxide and 60g of deionized water in a beaker, use an ultrasonic pulverizer to ultrasonically disperse for 10 minutes, and then emulsify with a high-speed emulsifier and add a mixer, thermometer, In the reaction vessel of the condenser, after feeding nitrogen and raising the te...

example 2

[0024] Take 20.8 g of trifluoroethyl methacrylate, 4.6 g of styrene, 5.32 g of butyl methacrylate, 2.04 g of methylol acrylamide, 1.04 g of hydroxyethyl methacrylate, and 3.2 g of sodium dodecylbenzenesulfonate g, 3.08g of perfluoroalkyl ethoxy ether alcohol and 72.8g of deionized water are placed in a beaker, emulsified using a high-speed emulsifier, and set aside; weigh 0.212g of azobisisobutylamidine hydrochloride and dissolve it in 10g of deionized water In deionized water, set aside; Separately weigh 5.20 g of trifluoroethyl methacrylate, 1.15 g of styrene, 1.33 g of butyl methacrylate, 0.51 g of methylol acrylamide, 0.26 g of hydroxyethyl methacrylate, azo Diisobutylamidine hydrochloride 0.053g, sodium dodecylbenzene sulfonate 0.8g, perfluoroalkyl ethoxy ether alcohol 0.77g, modified silicon dioxide 1.5g and 67.2g deionized water in a beaker ,Use an ultrasonic pulverizer to ultrasonically disperse for 20 minutes, then emulsify with a high-speed emulsifier and add it to a...

example 3

[0027] Take 13.64g of hexafluorobutyl acrylate, 4.8g of lauryl acrylate, 1.6g of acrylic acid, 1.28g of hydroxypropyl methacrylate, 0.72g of glycidyl acrylate, 0.76g of octadecyltrimethylammonium bromide, fat Alcohol polyoxyethylene ether OS-150.44g and deionized water 55g were placed in a beaker, emulsified with a high-speed emulsifier, and set aside; weighed 0.128g of azodiisopropylimidazoline hydrochloride and dissolved in 10g of deionized water, set aside In addition, 3.41g of hexafluorobutyl acrylate, 1.2g of lauryl acrylate, 0.4g of acrylic acid, 0.32g of hydroxypropyl methacrylate, 0.18g of glycidyl acrylate, and azodiisopropylimidazoline hydrochloride Put 0.032g, 0.19g of octadecyltrimethylammonium bromide, fatty alcohol polyoxyethylene ether OS-150.11g, 1.5g of modified magnesium oxide and 55g of deionized water in a beaker, and use an ultrasonic pulverizer to ultrasonically disperse for 15 minutes , and then emulsified with a high-speed emulsifier and added to a reac...

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Abstract

The invention relates to a latex type short-chain branch perfluoroalkyl water and oil repellent finishing agent and a preparation method thereof, belonging to the field of fine chemical industry. The latex type short-chain branch perfluoroalkyl water and oil repellent finishing agent is prepared by the following steps of: pre-emulsifying short-chain branch perfluoroalkyl acrylate monomer (10-20%), fluorine-free functional monomer (5.0-10%), modified nano-oxide (0.5-3.0%), initiator (0.1-2.0%), compound emulsifier (1.0-8.0%) and deioned water (60-80%); and finally heating for emulsion polymerization. The latex type short-chain branch perfluoroalkyl water and oil repellent finishing agent can be used for water and oil repellent finishing of animal and plant natural fiber fabric and chemical fiber fabric and has excellent water and oil repellent performance; fabric finished with the finishing agent has good handfeel and excellent endurance performance. Compared with the traditional fluorine-containing finishing agent , the finishing agent disclosed in the invention does not contain components harmful to human bodies and well accords with environmental protection requirement.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a preparation method of a modified nano-oxide short-chain branched fluorine-containing water and oil repellent finishing agent. technical background [0002] The fluorine-containing water-repellent and oil-repellent finishing agent is a multi-emulsion copolymer used for functional requirements such as water repellency, oil repellency, and antifouling on the surface of fabrics, clothing, and carpets. The substance introduces a certain proportion of acrylate compounds containing perfluoroalkyl chains into the copolymer to meet the functional requirements of the finished material such as water repellency, oil repellency, and antifouling. The practical application of fluorine-containing water and oil repellent finishing agents was in the 1950s, when 3M Corporation of the United States first launched the "scotchard" fabric finishing agent, and then DuPont, Asahi Glass, Daikin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/277D06M11/79D06M11/46D06M11/44D06M11/45C08F220/24C08F2/24
Inventor 付少海张明俊朱洪敏张霞王潮霞
Owner JIANGNAN UNIV
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