Core-shell type fluorinated acrylate fabric water repellent and preparation method thereof

An acrylate, core-shell technology, used in textiles, papermaking, fiber processing, etc., can solve the problems of low fastness of fluorine-containing polyacrylate copolymers, and achieve the effect of improving fastness and lasting water repellency

Active Publication Date: 2014-05-14
广东奕美化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a core-shell type fluorine-containing acrylate fabric water repellent, which solves the problem of low fastness of fluorine-containing polyacrylate copolymers in the process of taking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Step 1: Weigh 9 g of dodecafluoroheptyl methacrylate, 6 g of methyl methacrylate (MMA), 13.5 g of butyl acrylate (BA), and 1.5 g of β-hydroxypropyl acrylate (β-HPA); Sodium dodecyl sulfate (SDS) 0.45g, fatty alcohol polyoxyethylene ether (AEO-9) 0.45g; deionized water 60g, ammonium persulfate 0.18g; prepare 1% ammonium persulfate (APS) aqueous solution 18ml;

[0040] Step 2, preparation of the shell emulsion: In a three-necked flask equipped with a stirrer, add 9g of dodecafluoroheptyl methacrylate, 4.5g of MMA, 5.5g of BA, 1.5g of β-HPA, 20g of deionized water, 0.15g of SDS, 0.15g of AEO-9, fully emulsified for 20min, prepared shell emulsion for use;

[0041] Step 3, preparation of nuclear emulsion: In a four-necked flask equipped with a stirrer, a condenser, and a thermometer, add 22g deionized water, 0.3g SDS, and 0.3g AEO-9 respectively, and stir at high speed for 20 minutes to fully mix the emulsifier. Then add 1.5g MMA and 8gBA, heat up to 50°C, and pre-emulsify ...

Embodiment 2

[0051] Step 1, weigh 9g of hexafluorobutyl methacrylate, 6g of methyl methacrylate (MMA), 13.5g of butyl acrylate (BA), and 1.5g of β-hydroxyethyl acrylate (β-HEA); ten Dialkyl sodium sulfate (SDS) 0.45g, fatty alcohol polyoxyethylene ether (AEO-9) 0.45g; deionized water 60g, ammonium persulfate 0.2g; prepare 1% ammonium persulfate (APS) aqueous solution 20ml;

[0052] Step 2, preparation of the shell emulsion: In a three-necked flask equipped with a stirrer, add 9g of hexafluorobutyl methacrylate, 3g of MMA, 5.5g of BA, 1.5g of β-HEA, 18g of deionized water, 0.15g of SDS, 0.15 g AEO-9, fully emulsified for 20 minutes, and prepared a shell emulsion for use;

[0053] Step 3, preparation of nuclear emulsion: In a four-necked flask equipped with a stirrer, a condenser, and a thermometer, add 22g deionized water, 0.3g SDS, and 0.3g AEO-9 respectively, and stir at high speed for 20 minutes to fully mix the emulsifier. Then add 3g MMA and 8gBA and heat up to 50°C, and pre-emulsify ...

Embodiment 3

[0063] Step 1. Weigh 6 g of dodecafluoroheptyl methacrylate, 23.5 g of butyl acrylate (BA), 0.5 g of acrylic acid (AA), 0.45 g of sodium dodecyl sulfate (SDS), and fatty alcohol polyoxyethylene ether (AEO-9) 0.45g; deionized water 70g, ammonium persulfate 0.24g; prepare 1% ammonium persulfate (APS) aqueous solution 24ml;

[0064] Step 2, preparation of shell emulsion: In a three-necked flask equipped with a stirrer, add 6g of dodecafluoroheptyl methacrylate, 0.5g of AA, 9g of BA, 16g of deionized water, 0.15g of SDS, and 0.15g of AEO-9 , fully emulsified for 15 minutes, and the shell emulsion was prepared for use;

[0065] Step 3, preparation of nuclear emulsion: In a four-necked flask equipped with a stirrer, a condenser, and a thermometer, add 30 g of deionized water, 0.3 g of SDS, and 0.3 g of AEO-9, and stir at high speed for 20 minutes to fully mix the emulsifier. Then add 14.5g BA, raise the temperature to 40°C, and pre-emulsify for 60 minutes. After the emulsification ...

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Abstract

The invention relates to a core-shell type fluorinated acrylate fabric water repellent which comprises the components by weight percent: 25-50% of monomer, 50-75% of deionized water, an initiator and an emulsifying agent, wherein the weight of the initiator is 0.5-1.5% of the total weight of the monomer, and the weight of the emulsifying agent is 1.0-3.5% of total weight of the monomer. A preparation method of the water repellent comprises the steps of respectively preparing shell emulsion and core emulsion, and then dripping the shell emulsion and the initiator into the core emulsion for reaction to obtain the core-shell type fluorinated acrylate fabric water repellent. The core-shell type fluorinated acrylate fabric water repellent is applied to water and oil repellent finishing of the fabric, so that the fabric has excellent water and oil repellent property, and the problems that the existing water and oil repellent is poor in use durability, low in fastness and the like in the aspect of wearability can be solved; furthermore, the performances such as air permeability, moisture permeability and the like of the fabric are not influenced, and the environmental pollution is not caused.

Description

technical field [0001] The invention belongs to the technical field of textile finishing agents, and relates to a core-shell type fluorine-containing acrylate fabric water repellent agent, and also relates to a preparation method of the core-shell type fluorine-containing acrylate fabric water repellent agent. Background technique [0002] With the development of science and technology, the progress of society and the improvement of living standards, textiles with water and oil repellent function are becoming more and more widely used in people's daily life. There are two main ways to obtain special properties of textiles, one is to use functional fibers or special fibers; the other is to use post-finishing additives (also known as functional finishing agents) to finish textiles. Among them, the water and oil repellency of textiles is mainly obtained through post-finishing methods. Currently commonly used water repellents are mainly silicone resins and fluorocarbon polymers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F265/04C08F220/14C08F220/16C08F220/28C08F220/22C08F220/18C08F220/06C08F220/58C08F2/26C08F2/30C08F4/30D06M15/277
Inventor 习智华安恩来
Owner 广东奕美化工科技有限公司
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