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Preparation method of environment-friendly crosslinking type fluorocarbon polymer nanoemulsion

A nano-emulsion, cross-linked technology, applied in the field of preparation of environmentally friendly cross-linked fluorocarbon polymer nano-emulsion, to achieve energy saving, low skin irritation, good antistatic effect

Inactive Publication Date: 2019-05-17
陈立军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the domestic use of amino acids and betaines as emulsifiers to prepare acrylate nanopolymer emulsions has not been reported yet.

Method used

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  • Preparation method of environment-friendly crosslinking type fluorocarbon polymer nanoemulsion
  • Preparation method of environment-friendly crosslinking type fluorocarbon polymer nanoemulsion
  • Preparation method of environment-friendly crosslinking type fluorocarbon polymer nanoemulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In a 250mL four-neck flask equipped with a stirrer, reflux condenser, and dropping funnel, add 0.28g of amphoteric surfactant betaine and 0.56g of anionic surfactant amino acid compound surfactant and 35.00g of deionized water, stirred and heated to 80°C in a water bath. Add 10% of the mixed monomer and 10% of the initiator solution dropwise within 15 minutes, and continue to keep warm for 15 minutes after the dropwise addition is completed. Then the remaining initiator emulsion and mixed monomers were added dropwise into the four-necked flask within 3.0 hours. After the dropwise addition was completed, the temperature was raised to 90° C., and the temperature was continued for 30 minutes. The temperature was lowered to 40° C., and the acrylate nanopolymer emulsion was obtained after filtering out the material. Wherein the composition of the mixed monomer is 13.50g of butyl acrylate, 12.20g of methyl methacrylate, and 2.16g of functional monomers; the content of the in...

Embodiment 2

[0022] In a 250mL four-necked flask equipped with a stirrer, a reflux condenser, and a dropping funnel, add 0.60 g of amphoteric surfactant betaine and 0.90 g of anionic surfactant compound surfactants and 35.00 g of deionized water , stirred and heated to 80°C in a water bath. Add 20% of the mixed monomer and 20% of the initiator solution dropwise within 15 minutes respectively, and continue to keep warm for 15 minutes after the dropping is completed. Then the remaining initiator emulsion and mixed monomers were added dropwise into the four-necked flask within 3.0 hours. After the dropwise addition was completed, the temperature was raised to 90° C., and the temperature was continued for 40 minutes. The temperature was lowered to 40° C., and the acrylate nanopolymer emulsion was obtained after filtering out the material. Wherein the mixture monomer is combined into 12.00g of butyl acrylate, 15.00g of methyl methacrylate, and 3.00g of functional monomers; the content of the i...

Embodiment 3

[0024] In a 250mL four-necked flask equipped with a stirrer, a reflux condenser, and a dropping funnel, add 1.20 g of amphoteric surfactant betaine and 0.60 g of anionic surfactant compound surfactants and 30.00 g of deionized water , stirred and heated to 80°C in a water bath. Add 10% of the mixed monomer and 10% of the initiator solution dropwise within 15 minutes, and continue to keep warm for 15 minutes after the dropwise addition is completed. Then the remaining initiator emulsion and mixed monomers were added dropwise into the four-necked flask within 3.0 hours. After the dropwise addition was completed, the temperature was raised to 90° C., and the temperature was continued for 40 minutes. The temperature was lowered to 40° C., and the acrylate nanopolymer emulsion was obtained after filtering out the material. Wherein the composition of mixed monomer is butyl acrylate of 14g, methyl methacrylate of 13.5g, functional monomer of 2.5g; The content of initiator solution i...

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Abstract

An environment-friendly crosslinking type fluorocarbon polymer nanoemulsion is prepared from six main components by semi-continuous seed emulsion polymerization, is fine in appearance, has blue-fluorescence translucence, has pH of 7 plus / minus 0.5, solid content of 30% plus / minus 3% and emulsion particle size of 30-80 nm, and has excellent combination property after forming a film at 80 DEG C. Inthe six main components, ampholytic surfactant betaine accounts for 1%-4% of the total monomer mass, anionic surfactant amino acid accounts for 2%-6% of the total monomer mass, acrylic monomers account for 40%-50% of the total monomer mass, functional monomers account for 1%-10% of the total monomer mass, a water-soluble azo initiator accounts for 0.5%-2% of the total monomer mass, and the obtained polymer nanoemulsion has the characteristics of small particle size and small emulsion content. After film forming of the nanoemulsion, a latex film has excellent weather resistance, chemical resistance and high-temperature resistance.

Description

technical field [0001] The invention relates to a method for preparing a fluorine-containing cross-linked acrylate nano-polymer emulsion from an amphoteric surfactant betaine and an anionic amino acid surfactant. The polymer emulsion can be used for building heat-insulating coatings, adhesives, waterproofing agents, medicines, and pesticides And leather finishing agents and other fields. Background technique [0002] Betaine, an amphoteric surfactant, has excellent stability under acidic and alkaline conditions, and is cationic and anionic respectively. It is often used together with anionic, cationic and nonionic surfactants, and its compatibility is good. Non-toxic, less irritating, easily soluble in water, stable to acid and alkali, strong detergency, excellent thickening, softness, bactericidal, antistatic, and hard water resistance. Amino acid anionic surfactants are dissociated in water to generate hydrophilic anions. It has good decontamination, foaming, dispers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/56C08F220/20C08F2/24C08F2/26
Inventor 陈立军
Owner 陈立军
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