Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of polyacrylate soap-free emulsion containing fluorine

A technology of polyacrylate and soap-free emulsion is applied in the preparation of fluorine-containing polyacrylate soap-free emulsion and the preparation of cationic soap-free fluorine-containing water and oil repellent, which can solve the problem of increased production cost, low solubility, environmental pollution, etc. problem, to achieve the effect of good placement stability and improved waterproof and oil-proof performance

Inactive Publication Date: 2014-04-30
QILU UNIV OF TECH
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low solubility of fluorine-containing monomers in the water phase, a large amount of solvents (such as acetone, etc.) are usually added during the polymerization process, which will lead to increased production costs and environmental pollution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyacrylate soap-free emulsion containing fluorine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Preparation of fluorine-containing terpolymer.

[0032] Firstly, 40 g of dodecafluoroheptyl acrylate, 20 g of N-butyldiallylamine, and 40 g of N-methyldiallylamine were uniformly mixed to prepare mixed monomer A.

[0033] Add mixed monomer A and 200 g of dioxane into a four-neck flask equipped with a stirring device, a reflux device and a thermometer. The temperature of the solution was raised to 65° C., and 1 g of azobisisobutyronitrile was added to initiate a polymerization reaction. The polymerization time was 8 hours.

[0034] After the polymerization reaction is completed, the solvent is distilled off under reduced pressure to obtain a terpolymer with a vacuum degree of 10 mmHg-20 mmHg.

[0035] 2. Preparation of cationic soap-free fluorine-containing emulsion.

[0036] Mix 50 g of dodecafluoroheptyl methacrylate and 50 g of methyl acrylate to prepare mixed monomer B.

[0037] The terpolymer prepared above and water were added to the mixed monome...

Embodiment 2

[0040] 1. Preparation of fluorine-containing terpolymer.

[0041] Firstly, 60 g of dodecafluoroheptyl methacrylate, 10 g of N-butyldiallylamine, and 30 g of N-methyldiallylamine were uniformly mixed to prepare mixed monomer A.

[0042] Add mixed monomer A and 300 g of dioxane into a four-neck flask equipped with a stirring device, a reflux device and a thermometer. The temperature of the solution was raised to 65° C., and 3 g of azobisisobutyronitrile was added to initiate a polymerization reaction. The polymerization time was 6 hours.

[0043] After the polymerization reaction is completed, the solvent is distilled off under reduced pressure to obtain a terpolymer with a vacuum degree of 10 mmHg-20 mmHg.

[0044] 2. Preparation of cationic soap-free fluorine-containing emulsion.

[0045] Mix 50 g of dodecafluoroheptyl acrylate and 50 g of butyl acrylate to prepare mixed monomer B.

[0046] The terpolymer prepared above and water were added to the mixed monom...

Embodiment 3

[0049] 1. Preparation of fluorine-containing terpolymer.

[0050] Firstly, 60 g of dodecafluoroheptyl acrylate, 10 g of N-dodecyl diallylamine, and 30 g of N-methyl diallyl amine were uniformly mixed to prepare the mixed monomer A.

[0051] Add mixed monomer A and 400 g of dioxane into a four-neck flask equipped with a stirring device, a reflux device and a thermometer. The temperature of the solution was raised to 85° C., and 5 g of azobisisobutyronitrile was added to initiate a polymerization reaction. The polymerization time was 4 hours.

[0052] After the polymerization reaction is completed, the solvent is distilled off under reduced pressure to obtain a terpolymer with a vacuum degree of 10 mmHg-20 mmHg.

[0053] 2. Preparation of cationic soap-free fluorine-containing emulsion.

[0054] Mix 50 g of hexafluorobutyl acrylate, 40 g of methyl acrylate, and 10 g of lauryl acrylate to prepare mixed monomer B.

[0055] The terpolymer prepared above and water ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a cation polyacrylate soap-free emulsion containing fluorine. The preparation method comprises following steps: dodecafluorhe-ptylacrylate or dodecafluoroheptyl methacrylate, N-alkyl diene propyl amine, and methyldiallylamine are mixed so as to obtain a mixed monomer A; oil soluble initiator azodiisobutyronitrile is added, an obtained mixture is heated to a certain temperature for polymerization, and a terpolymer is obtained; organic fluorine monomer and acrylate monomer are mixed so as to obtain a mixed monomer B; the terpolymer and water are added so as to obtain a monomer pre-emulsification liquid C; and water soluble initiator azobis(2-methylpropionamidine) dihydrochloride is added, and finished products are obtained via polymerization. The cation polyacrylate soap-free emulsion containing fluorine is a white emulsion; pH value ranges from 4.0 to 7.0; when the cation polyacrylate soap-free emulsion containing fluorine is mixed with water at a ratio of 9:1, no delamination is caused in 24 hours; and the cation polyacrylate soap-free emulsion containing fluorine possesses excellent storage stability, and can be stored at room temperature for 6 months without deterioration. The cation polyacrylate soap-free emulsion containing fluorine is capable of improving water resistance and oil resistance of paper or leather significantly.

Description

(1) Technical field [0001] The invention relates to a preparation technology of a cationic soap-free fluorine-containing waterproof and oil-repellent agent, in particular to a preparation method of a fluorine-containing polyacrylate soap-free emulsion, which belongs to the technical field of light industry. (2) Background technology [0002] Since the C-F bond of the fluoroalkyl side chain has large bond energy and strong polarity, and is oriented outward during the film formation process, it has a strong shielding and protecting effect on the C-C main chain. Therefore, fluoropolyacrylate has excellent hydrophobic and oleophobic properties, thermal stability and chemical corrosion resistance. In recent years, fluorinated polyacrylates have been widely used in the fields of leather, papermaking, textiles, protection of ancient buildings and controlled drug release. [0003] Emulsion polymerization is a commonly used method for preparing fluoroacrylate emulsions. For exa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/04C08F265/06C08F271/00C08F220/22C08F220/14C08F220/18C08F226/02C08F212/08D21H19/20C09D151/00D06M15/21C14C11/00
Inventor 靳丽强魏延伟徐清华王玉路
Owner QILU UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com