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Fluorine-containing silicon core-shell fabric finishing agent and preparation method thereof

A fabric finishing agent and finishing agent technology, applied in fiber treatment, textiles and papermaking, etc., can solve the problems of difficult initiation, low effective utilization rate of fluorine-containing monomers, difficult pre-emulsification, etc., and achieve mild reaction conditions and enhanced water repellency. Effect, effect of small particle size distribution

Inactive Publication Date: 2015-11-18
FUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of fluorine-containing acrylate monomer is high, it is difficult to pre-emulsify, it is not easy to initiate, and it cannot participate in the copolymerization reaction efficiently, resulting in a low effective utilization rate of fluorine-containing monomers. It is particularly urgent to improve the utilization rate of fluorine-containing monomers

Method used

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  • Fluorine-containing silicon core-shell fabric finishing agent and preparation method thereof

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preparation example Construction

[0052] A preparation method of a fluorine-containing silicon core-shell fabric finishing agent, wherein the ingredients are weighed according to the above parts by weight, comprising the following steps:

[0053]1) Preparation of initiator: After adding nano-silica in absolute ethanol, the mass ratio of the volume of absolute ethanol to nano-silica is 10:1, and then drop silane coupling agent to obtain nano-silica Silica sol, stir the nano-silica sol at a speed of 100-500r / min at 25-40°C for 1-4h, heat the stirred nano-silica sol to 50-100°C and reflux for 1-10h, Centrifuge the refluxed nano-silica sol at 5000-10000r / min for 5-20min at 10-30°C, take the precipitate after centrifugation, wash the precipitate with absolute ethanol for 3-5 times, and put the washed precipitate in After vacuum drying at 40-70°C and vacuum degree of -100kPa for 120-240min to obtain amino-functionally modified silica, add amino-functionally modified nano-silica to toluene or dichloromethane, and the...

Embodiment 1

[0060] A fluorine-containing silicon core-shell fabric finishing agent, which consists of the following components by weight:

[0061] 0.1 part of nano silicon dioxide;

[0062] 0.1 part of silane coupling agent;

[0063] 0.1 part of triethylamine;

[0064] 0.2 parts of 2-bromoisobutyryl bromide;

[0065] 5 parts of fluorine-containing monomer;

[0066] 10 parts of non-fluorine-containing monomers;

[0067] 1 part of compound emulsifier;

[0068] 0.1 part of solubilizer;

[0069] Catalyst 0.005 part,

[0070] 0.005 part of complexing agent,

[0071] 0.01 parts of reducing agent;

[0072] 38 parts of deionized water.

[0073] The particle size of the nano silicon dioxide is 100nm.

[0074] The fluorine-containing monomer is heptadecanyl fluorodecyl methacrylate; the non-fluorine-containing monomer is a mixture of methyl methacrylate and butyl acrylate.

[0075] The compound emulsifier is octadecyltrimethylammonium bromide.

[0076] The solubilizer is β-cyclodextrin....

Embodiment 2

[0084] A fluorine-containing silicon core-shell fabric finishing agent, which consists of the following components by weight:

[0085] 0.15 parts of nano silicon dioxide;

[0086] 0.15 parts of silane coupling agent;

[0087] 0.15 parts of triethylamine;

[0088] 0.3 parts of 2-bromoisobutyryl bromide;

[0089] 10 parts of fluorine-containing monomer;

[0090] 20 parts of non-fluorine-containing monomers;

[0091] 5 parts of compound emulsifier;

[0092] 0.6 parts of solubilizer;

[0093] Catalyst 0.007 part,

[0094] 0.007 part of complexing agent,

[0095] 0.03 parts of reducing agent;

[0096] 60 parts of deionized water.

[0097] The particle size of the nano silicon dioxide is 200nm.

[0098] The fluorine-containing monomer is hexafluorobutyl methacrylate; the non-fluorine-containing monomer is a mixture of styrene and methylol acrylamide.

[0099] The compounded emulsifier is a mixture of octylphenol polyoxyethylene ether-10 and sodium dodecylbenzenesulfonate....

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Abstract

The invention discloses a fluorine-silicon-containing core-shell type fabric finishing agent and a preparation method and application thereof. The finishing agent comprises nanometer silica, a silane coupling agent, triethylamine, 2-bromo-2-methylpropionyl bromide, a fluorine-containing monomer, a non-fluorine-containing monomer, a compound emulsifier, a solubilizer, a catalyst, a coordination agent, a reducing agent and deionized water. The finishing agent is prepared by performing initiator preparation, pre-emulsification and polymerization reaction, and a formed film is fixedly attached to the surface of fabric. By introducing nanometer silica and combining with organic fluorine, a micro-nano dual structure is constructed on the fabric surface, and the water-repelling oil-repelling effects of the fabric finishing agent are enhanced.

Description

technical field [0001] The invention belongs to the field of preparation of fabric functional finishing agents, in particular to a fluorine-containing silicon core-shell fabric finishing agent and its preparation method and application. Background technique [0002] With the change of people's consumption concept, multifunctional textiles are becoming more and more popular. Among them, textiles with water and oil repellency are widely used in outdoor sportswear, medical personnel clothing and other fields, and have a large market demand. The most common water and oil repellent finishing agents for fabrics are fluorine-containing fabric finishing agents. At present, domestic fluorine-containing fabric finishing agents mainly rely on imports. Companies with mature technologies include DuPont of the United States, 3M Company, Hoechst of Germany, Atochem of France, Asahi Glass of Japan, etc. . [0003] It is well known that the fluorine-containing acrylate polymer finishing ag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/277D06M15/29C08F292/00C08F2/24
Inventor 林春香刘丹慧骆薇刘明华陈新民
Owner FUZHOU UNIV
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