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Fluorine-containing polymer with high peeling force and high transparency and its preparation method

A high-transparency, high-peeling technology, applied in the direction of adhesives, etc., can solve the problems of low peeling force and transparency of fluoropolymers, the use of more reaction aids, and low polymerization temperature, so as to broaden the scope of processing and use, improve transparency and distribution uniform effect

Active Publication Date: 2022-03-25
SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this invention patent is the use of redox system, low polymerization temperature and low pressure. The disadvantage is that more reaction aids are used and more impurities are introduced. Potassium permanganate can introduce metal ions into the polymer.
[0007] In addition, the fluorine-containing polymers prepared in the prior art also have the problems of relatively low peeling force and transparency, which need to be improved

Method used

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  • Fluorine-containing polymer with high peeling force and high transparency and its preparation method

Examples

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Effect test

Embodiment 1

[0031] In a 10L stainless steel polymerization kettle, add 5.5L of deionized water, add 20g of ammonium perfluorooctanoate (40% by mass), treat the oxygen content of the polymerization kettle to be qualified, turn on the polymerization kettle and stir, then add the initial monomer mixture, the initial monomer added The mass of tetrafluoroethylene and hexafluoropropylene in the mixture is 1:2, the temperature is raised to 80 ° C, the constant reaction pressure is 2.5 MPa, 10 mL of 2.5 wt % ammonium persulfate initiator is added, and then continuously added to the polymerization kettle. For the monomer, the mass ratio of ethylene, tetrafluoroethylene and hexafluoropropylene in the gas phase part of the supplementary monomer is 2:9:6, and the total weight is 2kg. During the process of adding additional monomers, 50 mL of 2.5 wt% ammonium persulfate was continuously added to supplement the initiator, and at the same time, the CH prepared with 20 g of ammonium perfluorooctanoate was...

Embodiment 2

[0033]In a 10L stainless steel polymerization kettle, add 5.5L of deionized water, add 20g of ammonium perfluorooctanoate (40% by mass), treat the oxygen content of the polymerization kettle to be qualified, turn on the polymerization kettle and stir, then add the initial monomer mixture, the initial monomer added The mass of tetrafluoroethylene and hexafluoropropylene in the mixture is 1:2, the temperature is raised to 80 ° C, the constant reaction pressure is 2.5 MPa, 10 mL of 2.5 wt % ammonium persulfate initiator is added, and then continuously added to the polymerization kettle. For the monomer, the mass ratio of ethylene, tetrafluoroethylene and hexafluoropropylene in the gas phase part of the supplementary monomer is 2:9:6, and the total weight is 2kg. During the process of adding additional monomers, 50 mL of 2.5 wt% ammonium persulfate was continuously added to supplement the initiator, and at the same time, the CH prepared with 20 g of ammonium perfluorooctanoate was ...

Embodiment 3

[0035] In a 10L stainless steel polymerization kettle, add 5.5L of deionized water, add 20g of ammonium perfluorooctanoate (40% by mass), treat the oxygen content of the polymerization kettle to be qualified, turn on the polymerization kettle and stir, then add the initial monomer mixture, the initial monomer added The mass of tetrafluoroethylene and hexafluoropropylene in the mixture is 1:2, the temperature is raised to 80 ° C, the constant reaction pressure is 2.5 MPa, 10 mL of 2.5 wt % ammonium persulfate initiator is added, and then continuously added to the polymerization kettle. For the monomer, the mass ratio of ethylene, tetrafluoroethylene and hexafluoropropylene in the gas phase part of the supplementary monomer is 2:9:6, and the total weight is 2kg. During the process of adding additional monomers, 50 mL of 2.5 wt% ammonium persulfate was continuously added to supplement the initiator, and at the same time, the CF prepared with 20 g of ammonium perfluorooctanoate was...

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Abstract

The invention relates to a fluorine-containing polymer with high peeling force and high transparency and a preparation method thereof, belonging to the technical field of fluorine-containing polymer modification. The fluorine-containing polymer with high peeling force and high transparency described in the present invention is 60-70wt% of tetrafluoroethylene, 10-20wt% of hexafluoropropylene, 10-29wt% of ethylene, and 0.1-1.5wt% of fluorine-containing Copolymer of acrylate monomers. The fluorine-containing polymer with high peeling force and high transparency described in the present invention has higher peeling force and transparency, has a wider range of melting point temperature, and is more excellent in high temperature resistance and thermal stability; The preparation method does not need to add too many auxiliary materials.

Description

technical field [0001] The invention relates to a fluorine-containing polymer with high peeling force and high transparency and a preparation method thereof, belonging to the technical field of fluorine-containing polymer modification. Background technique [0002] Ethylene-modified polyperfluoroethylene propylene resin has the characteristics of ethylene-tetrafluoroethylene copolymer and tetrafluoroethylene-hexafluoropropylene copolymer. It is a modified resin that improves the adhesion of fluorine-containing resins. An ethylene unit is introduced into the main chain, and the improvement of the adhesiveness of the fluoropolymer is achieved through the hydrogen atom in the ethylene unit. Conventional ethylene-modified polyperfluoroethylene propylene resin has a melting point between 140-170 °C, and has excellent adhesion, chemical resistance, electrical insulation, heat sealing and other characteristics. It can be processed into film, and then combined with base The substra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/26C08F214/28C08F210/02C08F220/24C09J127/18
CPCC08F214/26C09J127/18C08F214/28C08F210/02C08F220/24
Inventor 王汉利朱倩刘治梅张士玉
Owner SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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