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Graphene modified fluororesin as well as preparation method and application thereof

A graphene-modified and fluororesin technology, applied in the field of graphene-modified fluororesin, can solve the problems of short service life and easy cracking, and achieve the effects of preventing cracking, reducing interfacial tension and improving processing efficiency

Active Publication Date: 2019-12-03
费植煌 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to provide an application of graphene-modified fluororesin, which is used to prepare pipe body, piston ring, gasket, hollow fiber or anti-corrosion coating, which can improve its easy cracking, use short lifespan

Method used

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  • Graphene modified fluororesin as well as preparation method and application thereof
  • Graphene modified fluororesin as well as preparation method and application thereof
  • Graphene modified fluororesin as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A kind of graphene modified fluororesin, described graphene modified fluororesin comprises the raw material of following weight portion:

[0041]

[0042]

[0043] The fluorosurfactant used in the graphene-modified fluororesin is an anionic fluorosurfactant mixed with a nonionic fluorosurfactant at a weight ratio of 2:1; the anionic fluorosurfactant The agent is DuPont FSA; the nonionic fluorosurfactant is DuPont FSO.

[0044] The preparation method of each part of the fluorine-containing polymer dispersion liquid comprises the following steps: 16 parts by volume of fluorine-containing monomers, 63 parts by volume of water, 0.004 parts by volume of fluorosurfactants, and 5 parts by volume of vinyl monomers are mixed under a pressure of 3.5 MPa. The monomer and 0.002 parts by volume of graphene are mixed uniformly, then an initiator is added in a vacuum environment, and the temperature is raised to 73°C for reaction. Fluoropolymer dispersions.

[0045] The fluoro...

Embodiment 2

[0061] A kind of graphene modified fluororesin, described graphene modified fluororesin comprises the raw material of following weight portion:

[0062]

[0063] The preparation method of each part of the fluorine-containing polymer dispersion comprises the steps of: mixing 15 parts by volume of fluorine-containing monomers, 40 parts by volume of water, and 0.001 parts by volume of fluorosurfactant under a pressure of 3 MPa, and then Add an initiator, raise the temperature to 80°C for reaction, add 5 parts by volume of fluorine-containing monomer during the reaction, and react until the solid content of the system reaches 20%, to obtain a fluorine-containing polymer dispersion.

[0064] The fluorine-containing monomer is vinylidene fluoride.

[0065] The amount of the initiator is 0.12wt% of the amount of the fluorine-containing monomer; the initiator is compounded by ammonium persulfate and potassium persulfate at a weight ratio of 1:0.5.

[0066] Every part of described ...

Embodiment 3

[0079] A kind of graphene modified fluororesin, described graphene modified fluororesin comprises the raw material of following weight portion:

[0080]

[0081] The fluorosurfactant used in the graphene-modified fluororesin is an anionic fluorosurfactant; the anionic fluorosurfactant is DuPont FS-62.

[0082]The preparation method of each part of the fluorine-containing polymer dispersion liquid comprises the following steps: 17 parts by volume of fluorine-containing monomer, 76 parts by volume of water, 0.007 parts by volume of fluorosurfactant, 10 parts by volume of ethylenic monomer Mix evenly with 0.003 parts by volume of graphene, then add an initiator in a vacuum environment, heat up to 65°C for reaction, add 15 parts by volume of fluorine-containing monomers during the reaction, and react until the solid content of the system reaches 35%, to obtain a fluorine-containing polymer dispersion.

[0083] The fluorosurfactant used in the fluoropolymer dispersion is formed...

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Abstract

The invention relates to the technical field of fluoropolymers, in particular to graphene modified fluororesin as well as a preparation method and an application thereof. The graphene modified fluororesin comprises raw materials as follows: a fluoropolymer dispersion liquid, a graphene dispersion liquid, a fluorinated surfactant, a forming agent, a synergistic forming agent and water. According tothe graphene modified fluororesin, the fluoropolymer dispersion liquid and the graphene dispersion liquid are subjected to in-situ polymerization in water under the action of the fluorinated surfactant, so that graphene of the graphene dispersion liquid is attached to the surface of the fluoropolymer of the fluoropolymer dispersion liquid to form graphene-fluoropolymer particles like dry glutinous rice flour attached to surfaces of sweet dumplings, and the binding degree and distribution uniformity of the fluoropolymer and graphene are improved. The graphene modified fluororesin has a large specific surface area, good thermal stability, high toughness, high impact strength, good anti-static effect and degradation resistance, and the service life of the graphene modified fluororesin is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of fluoropolymers, in particular to a graphene-modified fluororesin, its preparation method and application. Background technique [0002] Fluorine resin is a kind of polymer resin containing fluorine atoms in its molecular structure. It has excellent high and low temperature resistance, dielectric properties, electrical insulation, chemical stability, weather resistance, non-combustibility, non-stickiness and low friction coefficient, etc. characteristic. Fluorine resin can be used as the lining of chemical pipes, valves, pumps and storage tanks; insulation materials such as heat-resistant and anti-corrosion wire coverings for electronic industry; wiring for aircraft, spacecraft and electronic computers; wear-resistant and self-lubricating bearings for mechanical industry, Piston rings and gaskets, etc.; rollers for paper industry, printing and dyeing and textile industry, food industry, construction mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L27/12C08L27/16C08K13/02C08K3/04C08K3/28C08K3/30C08K3/16
CPCC08K3/16C08K3/28C08K3/30C08K13/02C08K2003/166C08K2003/282C08K2003/3072C08K2003/3081C08K3/042C08L27/18C08L27/16C08L27/12
Inventor 费植煌谢勇辉
Owner 费植煌