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Fluorinated acrylate copolymer finishing agent and preparation method therefor

An acrylate and copolymer technology, applied in the field of textile finishing agents, can solve problems such as not easy to clean, achieve excellent decontamination effect, improve fastness, and long-lasting performance

Inactive Publication Date: 2015-12-02
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a fluorine-containing acrylate copolymer finishing agent, which can show excellent decontamination effect while imparting excellent water and oil repellency to the fabric, and solve the problem of the existing fluorine-containing finishing agent. The problem that the treated fabric is not easy to wash once it is stained with oil

Method used

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  • Fluorinated acrylate copolymer finishing agent and preparation method therefor
  • Fluorinated acrylate copolymer finishing agent and preparation method therefor
  • Fluorinated acrylate copolymer finishing agent and preparation method therefor

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preparation example Construction

[0035] The present invention also provides a preparation method for the above-mentioned fluorine-containing acrylate copolymer finishing agent, comprising the following steps:

[0036] Step 1, weighing each raw material component according to the above mass percentage relationship.

[0037] Step 2, divide the initiator into three parts; firstly mix the water, emulsifier and the first initiator, then add fluorinated monomer, acrylate non-fluorinated monomer, methacrylate non-fluorinated Monomer, hydrophilic functional monomer and cross-linking functional monomer to obtain stock solution; emulsify the stock solution to obtain pre-emulsion; take part of the pre-emulsion as the bottom liquid, heat the bottom liquid to 75-80°C and add the second part of trigger Add the remaining pre-emulsion slowly after the bottom liquid turns blue, and keep stirring at a constant speed until the remaining pre-emulsion is added dropwise to obtain a mixed solution.

[0038] Step 3: Add the third p...

Embodiment 1

[0044] Prepare a fluorine-containing acrylate copolymer finishing agent, comprising the following steps:

[0045]Step 1: Weigh 9 g of fluorinated monomer dodecafluoroheptyl methacrylate (actyflon-G04), 6 g of non-fluorinated monomer methyl methacrylate (MMA), and 4 g of isooctyl methacrylate (EHMA) And butyl acrylate (BA) 20g, hydrophilic functional monomer acrylic acid (AA) 2g, crosslinking functional monomer N-methylolacrylamide (NMA) 1g; anionic emulsifier sodium dodecylbenzenesulfonate (SDBS) 0.3g, non-ionic emulsifier fatty alcohol polyoxyethylene ether (AEO-9) 0.3g; deionized water 45mL; initiator ammonium persulfate (APS) 0.5g to prepare 1% APS aqueous solution 15mL.

[0046] Step 2: In a three-neck flask equipped with a stirrer and a thermometer, add deionized water, SDBS and AEO-9, stir 1 mLAPS at high speed for 5 minutes to fully mix the emulsifier, then add actyflon-G04, MMA, EHMA, BA, NMA and AA, to obtain the stock solution. After pre-emulsifying the stock solut...

Embodiment 2

[0054] Prepare a fluorine-containing acrylate copolymer finishing agent, comprising the following steps:

[0055] Step 1, weigh 20 g of trifluoroethyl methacrylate as a fluorinated monomer, 15 g of ethyl methacrylate as a non-fluorinated monomer and 30 g of n-octyl acrylate, 10 g of acrylic acid as a hydrophilic functional monomer, and 10 g of acrylic acid as a crosslinking functional monomer Bulk acrylate-β-hydroxyethyl ester 1.5g; anionic emulsifier sodium dodecylbenzenesulfonate 2g, nonionic emulsifier octylphenol polyoxyethylene ether 3g; deionized water 25mL; initiator ammonium persulfate ( APS) 1g was prepared into 10mL of 1% APS aqueous solution.

[0056] Step 2: In a three-necked flask equipped with a stirrer and a thermometer, add deionized water, an emulsifier and 0.7 mL of an initiator, stir at high speed for 5 minutes to fully mix the emulsifier, and then add all the monomers to obtain a stock solution. After pre-emulsifying the stock solution for 30 minutes with ...

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Abstract

The invention discloses a fluorinated acrylate copolymer finishing agent. The fluorinated acrylate copolymer finishing agent is prepared from the following raw material ingredients in percentage by mass: 10-50% of fluoro monomer, 20-30% of acrylate non-fluoro monomer, 10-15% of methacrylate non-fluoro monomer, 2-20% of hydrophilic functional monomer, 1-2% of cross-linking functional monomer, 0.5-1.5% of initiator, 0.5-5% of emulsifier and the balance of water. A preparation method for the fluorinated acrylate copolymer finishing agent comprises the steps: uniformly mixing the water, the emulsifier and part of the initiator, and adding all the monomers into the uniform mixture, so as to obtain a stock solution; emulsifying the stock solution, so as to obtain a pre-emulsion; and taking part of the pre-emulsion as a base solution, heating the base solution to the temperature of 75-80 DEG C, then, adding part of the initiator into the heated base solution, slowly dropwise adding the remaining pre-emulsion into the base solution until the remaining pre-emulsion is dropwise added completely after the base solution shows blue light, finally, adding the remaining initiator into the base solution, carrying out uniformly mixing, then, heating the mixture to the temperature of 85-90 DEG C, and carrying out heat preservation for 1-2 hours, thereby obtaining the fluorinated acrylate copolymer finishing agent.

Description

technical field [0001] The invention belongs to the technical field of textile finishing agents, relates to a fluorine-containing acrylate copolymer finishing agent, and also relates to a preparation method of the above-mentioned fluorine-containing acrylate copolymer finishing agent. Background technique [0002] With the rapid development of synthetic fibers, especially polyester, and the increasing popularity of washable and wearable finishing, consumers will use polyester-cotton blended fabrics in all aspects of daily life, and often use products with water- and oil-repellent finishing for convenience . [0003] Most of the existing water and oil repellent finishing products are fluorine-containing finishing agents. Fluorine is the most electronegative and active non-metallic element, and it is very easy to obtain an electron to form a stable structure with negative one valence. When fluorine forms a bond with other elements, the bond energy is relatively large, and th...

Claims

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Application Information

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IPC IPC(8): C08F220/22C08F220/14C08F220/18C08F220/06C08F220/58C08F220/28C08F2/26C08F2/30D06M15/29D06M15/277D06M101/06
Inventor 习智华党会茹
Owner XI'AN POLYTECHNIC UNIVERSITY
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