CN108395570A - A kind of self-repair material and preparation method and application - Google Patents
A kind of self-repair material and preparation method and application Download PDFInfo
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- CN108395570A CN108395570A CN201810551447.6A CN201810551447A CN108395570A CN 108395570 A CN108395570 A CN 108395570A CN 201810551447 A CN201810551447 A CN 201810551447A CN 108395570 A CN108395570 A CN 108395570A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/42—Impregnation with macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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Abstract
The invention discloses a kind of self-repair materials and preparation method and application, including mushy polytetrafluoroethylene film, and the filled perfluoropolymer in the hole of the polytetrafluoroethylene film, the polytetrafluoroethylene film is modified by corona treatment, the mass ratio that the (per) fluoropolymer accounts for polytetrafluoroethylene film is more than 0.1wt%, including:Cleaning:Polytetrafluoroethylene film is cleaned by ultrasonic with cleaning agent, it is dry after flushing;Corona treatment is modified;Vacuum impregnation:Modified polytetrafluoroethylene film is impregnated into the molten liquid dipping of (per) fluoropolymer;The excessive residual (per) fluoropolymer on surface is washed off with solvent, room temperature preservation obtains the self-repair material.It is more than 98 ° with the contact angle of liquid, i.e. surface energy is less than 25Mn/m, have antifouling water-proof function and adhesiveness is good, easy coating, except the performances such as corrosion-resistant, easy to process, is also equipped with the self-repair material of special performance and preparation method and application of anti-aging, long-acting slow-release and environmental protection.
Description
Technical field
The present invention relates to environment-friendly materials fields more particularly to a kind of self-repair material and preparation method and application.
Background technology
So far, stable against biological contamination is mainly by coating stanniferous or copper coating, allow these toxic metals slowly
Toxicity is discharged, to achieve the purpose that kill biological pollution;But the toxicant that these coating contain can be with biological chain most
Human body is entered eventually.Currently, although all object coating applications of organosilicon are extensive, but still there is certain limitation, such as:To algae
The anti-fouling effect of class is poor, and usage time is short etc., therefore, it is impossible to meet user to demands such as environmental protection and service lifes.
Invention content
In view of this, the present invention provides a kind of self-repair material, have stronger antifouling water-proof function, be also equipped with it is nontoxic,
Age inhibiting function.
The technological means that the present invention uses is as follows:
A kind of self-repair material, including mushy polytetrafluoroethylene film, and in the polytetrafluoroethylene film
Filled perfluoropolymer in hole, the mass ratio that the (per) fluoropolymer accounts for polytetrafluoroethylene film is more than 0.1wt%, described
The fixed amount of (per) fluoropolymer described in the hole of polytetrafluoroethylene film is 6g/m2~20g/m2。
For the self-repair material of the present invention on mushy polytetrafluoroethylene film with ultra-hydrophobicity, filling can be with
The nontoxic (per) fluoropolymer of degradation, in the case where not influencing the performance of mushy polytetrafluoroethylene film, as far as possible
More filling fillings such as (per) fluoropolymer, loading need to be more than institute in the hole of 0.1wt% and the polytetrafluoroethylene film
The fixed amount for stating (per) fluoropolymer is 6g/m2~20g/m2, (per) fluoropolymer in the self-repair material is made to be able to maintain that for a long time
It is discharged from the hole of (per) fluoropolymer, it during use, can be under the action of mechanical force (stretch, squeeze, friction)
Make to be stored in the low-surface energy substance (per) fluoropolymer in hole to be released effectively, and makes its Successful migration to polytetrafluoroethylene (PTFE) substrate
Surface reduces the free energy on surface, and the final selfreparing for realizing substrate surface keeps the anti-fouling effect of polytetrafluoroethylene film long-acting
Persistently.
When a kind of surface energy of coating is less than 25Mn/m, i.e., when polymer coating surface is more than 98 ° to the contact angle of water,
Polymer just has antifouling capacity.Since the interaction force between fluoropolymer surface and air molecule is small, have relatively low
Surface energy, so solid or liquid be difficult adherency or soak.Contain electronegative fluorine atom in organo-fluorine polymer, fluorine is former
There are repulsion between son, this fluorine-containing groups in fluorinated polymer material to reset to move to fluorinated polymer material
Surface, fluorine material surface fluorine content are enriched with to form fluorine-containing layer.A kind of self-repair material of the present invention, in polytetrafluoroethylene film
Micropore in immersion deposition there is the (per) fluoropolymer of low-surface energy substance, there is good hydrophobic and oleophobic performance to obtain
Special wellability material can make to be stored in polytetrafluoroethylene film hole in the case where mechanical force (stretches, squeezes, friction) effect
Low-surface energy substance (per) fluoropolymer be released effectively, and make its Successful migration to PolytetrafluoroethylFilm Film, reduce surface
Free energy, the final selfreparing for realizing the special wellability of substrate surface.
Above-mentioned self-repair material waterproof and anticorrosion, steel surface processing, windshield hydrophobic oleophobic coating, outer
The self-cleaning coating of wall and sculpture, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining
Non-resistance coating, the textile fabric of hydrophobic oleophobic type, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof and anticorrosion
Lose the application of most substrate surfaces such as outer protective.
Preferably, 0.1~1.5 micron of the aperture of the polytetrafluoroethylene film hole, porosity are more than 82%.Selection is suitable
The material in the aperture of conjunction is suitable for being filled into (per) fluoropolymer, too small, is not easy to fill, loading deficiency then influences performance, excessive
It can then make (per) fluoropolymer release too fast, it cannot be guaranteed that long-acting lasting low-surface-energy performance, high porosity can ensure to fill
(per) fluoropolymer it is enough, be unlikely to that prolonged anti-fouling effect cannot be maintained.
Preferably, the polytetrafluoroethylene film is modified by corona treatment.In common filling process, although can
Ensure that (per) fluoropolymer is attached in hole, but its adhesive force is weak, attachment is uneven, attachment is incomplete, by fluid
It washes away and is easily separated from hole, its effect is lost in the short time, can not ensure long-acting, plasma treatment rear surface is hydrophilic to be easy to perfluor
Polymer penetration is filled into ptfe porous membrane hole.
Preferably, the (per) fluoropolymer includes perfluoroethylene-propylene (copolymer), perfluorooctylethyl group acrylate, perfluoro octyl sulfonic acid
And its salt, perfluoro caprylic acid and its salt.Replace perfluor long-chain low to obtain with the short perfluoroalkyl chain and perfluoroether chain that can be degraded
Surface energy is capable of the material of self-regeneration.
The present invention also provides a kind of above-mentioned preparation methods of self-repair material, include the following steps:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is more than 0.1wt%;
S2. it cleans:Polytetrafluoroethylene film is cleaned by ultrasonic with cleaning agent, is then rinsed well with deionized water, room temperature
Lower vacuum drying;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning;
S4. vacuum impregnation:Modified polytetrafluoroethylene film is impregnated into the molten liquid of (per) fluoropolymer, vacuumizes leaching
Stain makes (per) fluoropolymer be impregnated into the hole of polytetrafluoroethylene film;
S5. the excessive residual (per) fluoropolymer on surface is washed off with solvent by vacuum-impregnated polytetrafluoroethylene film,
Obtain the self-repair material.
Polytetrafluoroethylene film is cleaned removing impurity keeps (per) fluoropolymer preferably attached in subsequent steps
It in hole;Plasma treatment rear surface is hydrophilic to be easy to (per) fluoropolymer infiltration and is filled into ptfe porous membrane hole
In, vacuum pressure impregnation:External pressure is the direct driving force of dipping, and pressure is higher, and impregnability is stronger, impregnates required pressure and increasing
Strong object size and volume fraction have substantial connection, i.e. reinforcer size is smaller, and volume fraction is bigger, and required impregnation pressure is also got over
Greatly, since vacuum pressure impregnating method composite material solidifies under stress, material structure is fine and close, no shrinkage cavity, loose etc.
Casting flaw.It is preserved at room temperature again later up to self-repair material of the present invention.
Preferably, cleaning agent acetone and methanol is used to be cleaned by ultrasonic respectively in the step S2, dry 4h~6h.
Preferably, polytetrafluoroethylene film is placed in normal-temperature plasma equipment in the step S3 and is handled, atmosphere is
Air, radio-frequency power 20W~140W, processing time 5min~10min.In this preparation method, by polytetrafluoroethylene film into
Row is modified, general to be modified its hydrophobic performance by the polytetrafluoroethylene film of plasma modification, and in this method, in addition to making to change
Outside the property hydrophobic performance of its polytetrafluoroethylene film, it is often more important that in order to enable (per) fluoropolymer to be perfectly adhered to poly- four
In the hole of fluoroethylene film, plasma treatment rear surface is hydrophilic to be easy to (per) fluoropolymer infiltration and is filled into porous Teflon
In film hole.
Preferably, (per) fluoropolymer is placed in totally enclosed vessel in heating thawing in the step S4, obtains perfluor polymerization
The molten liquid of object;Vacuumize dipping 10min~20min.
Preferably, the solvent in the step S5 includes acetone and n-hexane.
Preferably, a kind of application of self-repair material, the self-repair material are applied to ship, aircraft, aircraft, vehicle
, medical instrument, building or aquaculture.
The polymer of organic fluorine richness has many advantages, such as water resistance, corrosion-resistant, the surface of perfluoroalkyl organic polymer from
Very low by energy, immersion deposition has low surface in the hole with the polytetrafluoroethylene film of plasma modification in the present invention
The (per) fluoropolymer of energy substance so that there are good hydrophobic and oleophobic performance materials originally, obtaining has self-regeneration performance
Material.The self-repair material of the present invention can make to be stored in polytetrafluoroethylene (PTFE) in the case where mechanical force (stretches, squeezes, friction) effect
The low-surface energy substance (per) fluoropolymer of film is released effectively, and makes its Successful migration to PolytetrafluoroethylFilm Film, is reduced
The free energy on surface, the final quick selfreparing for realizing the special wellability of film surface.
Using self-repair material provided by the present invention and preparation method and application, there is following technique effect:
(1) self-repair material of the invention environmental protection, and its surface energy is less than 25Mn/m, the i.e. contact angle of material and liquid
More than 98 °, there is excellent super-hydrophobic superoleophobic performance, due to the low-surface-energy of the material, can effectively inhibit the attached of biology
It, keeps the cleaning of material surface.
(2) polytetrafluoroethylene film in self-repair material of the invention passes through the modification of plasma, and perfluor is made to polymerize
Object can be deposited on polytetrafluoroethylene film well, and (per) fluoropolymer is during the use of film slowly from polytetrafluoroethyl-ne
It is released in alkene film hole, realizes the self-repair function of the self-repair material of the present invention, prevent the fast of self-repair material
Fast aging.
(3) preparation method of self-repair material of the invention is simple for process, is easily achieved, and production efficiency is high.
(4) self-repair material of the invention be widely used in ship, aircraft, aircraft, vehicle, medical instrument, building or
Person's aquaculture can keep the cleaning on the surface of these apparatus, prevent these apparatus by table well for a long time
It pollutes in face.
Specific implementation mode
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment one:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 0.2wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 4h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 140W, processing time 5min;
S4. vacuum impregnation:Perfluoroethylene-propylene (copolymer) is placed in totally enclosed vessel in heating to melt, obtains the molten of perfluoroethylene-propylene (copolymer)
Melt liquid, modified polytetrafluoroethylene film is impregnated into the molten liquid of perfluoroethylene-propylene (copolymer), vacuumizes dipping 10min;
S5. the excessive residual perfluoroethylene-propylene (copolymer) on surface is washed off with acetone by vacuum-impregnated polytetrafluoroethylene film,
Obtain the self-repair material.
The fixed amount of perfluoroethylene-propylene (copolymer) described in the hole of the polytetrafluoroethylene film is 6g/m2~15g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 53 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
Embodiment two:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 0.4wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 6h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 20W, processing time 10min;
S4. vacuum impregnation:Perfluoro octyl sulfonic acid is placed in totally enclosed vessel in heating to melt, obtains perfluoro octyl sulfonic acid
Molten liquid, modified polytetrafluoroethylene film is impregnated into the molten liquid of perfluoro octyl sulfonic acid, vacuumize dipping 20min;
S5. the excessive residual perfluoro octyl sulfonic acid on surface is washed with n-hexane by vacuum-impregnated polytetrafluoroethylene film
Fall to get to the self-repair material.
The fixed amount of (per) fluoropolymer described in the hole of the polytetrafluoroethylene film is 8g/m2~15g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 54 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
Embodiment three:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 0.15wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 5h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 50W, processing time 7min;
S4. vacuum impregnation:Perfluoro caprylic acid is placed in totally enclosed vessel in heating to melt, obtains the melting of perfluoro caprylic acid
Modified polytetrafluoroethylene film is impregnated into the molten liquid of perfluoro caprylic acid by liquid, vacuumizes dipping 14min;
S5. the excessive residual perfluoro caprylic acid on surface is washed off with n-hexane by vacuum-impregnated polytetrafluoroethylene film,
Obtain the self-repair material.
The fixed amount of perfluoro caprylic acid described in the hole of the polytetrafluoroethylene film is 7g/m2~12g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 49 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
Example IV:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 0.5wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 6h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 80W, processing time 8min;
S4. vacuum impregnation:Perfluorooctanoic acid is placed in totally enclosed vessel in heating to melt, obtains the molten of perfluorooctanoic acid
Melt liquid, modified polytetrafluoroethylene film is impregnated into the molten liquid of perfluorooctanoic acid, vacuumizes dipping 16min;
S5. the excessive residual perfluorooctanoic acid salt on surface is washed off with acetone by vacuum-impregnated polytetrafluoroethylene film,
Obtain the self-repair material.
The fixed amount of perfluorooctanoic acid salt described in the hole of the polytetrafluoroethylene film is 10g/m2~16g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 46 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
Embodiment five:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 0.8wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 4h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 100W, processing time 6min;
S4. vacuum impregnation:Perfluorooctylethyl group acrylate is placed in totally enclosed vessel in heating to melt, obtains perfluor
Modified polytetrafluoroethylene film is impregnated into the molten of perfluorooctylethyl group acrylate by the molten liquid of octyl ethyl propylene acid esters
Melt liquid, vacuumizes dipping 18min;
S5. the excessive residual perfluoro octyl sulfonic acid salt on surface is washed with acetone by vacuum-impregnated polytetrafluoroethylene film
Fall to get to the self-repair material.
The fixed amount of perfluoro octyl sulfonic acid salt described in the hole of the polytetrafluoroethylene film is 12g/m2~17g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 51 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
Embodiment six:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene (PTFE)
The mass ratio of film is 1.0wt%;
S2. it cleans:By 0.1~1.5 micron of aperture, polytetrafluoroethylene film of the porosity more than 82% is clear with acetone ultrasound
It washes, is then rinsed well with deionized water, be dried in vacuo 5h at room temperature;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning, and polytetrafluoroethylene film is placed in room temperature
It is handled in plasma apparatus, atmosphere is air, radio-frequency power 50W, processing time 7min;
S4. vacuum impregnation:Perfluoro octyl sulfonic acid tetraethyl ammonium is placed in totally enclosed vessel in heating to melt, obtains perfluor
Modified polytetrafluoroethylene film is impregnated into the molten of perfluoro octyl sulfonic acid tetraethyl ammonium by the molten liquid of octyl sulfonic acid tetraethyl ammonium
Melt liquid, vacuumizes dipping 14min;
S5. the excessive residual perfluoro caprylic acid on surface is washed off with n-hexane by vacuum-impregnated polytetrafluoroethylene film,
Obtain the self-repair material.
The fixed amount of perfluoro caprylic acid described in the hole of the polytetrafluoroethylene film is 15g/m2~20g/m2。
Anti-fouling paint product made from the embodiment meets the indices of GB/T6822-2007 standards.To this antifouling paint
Product carries out antifouling property test, and product effectively prevent being stained in 52 months, without adhesion loss, blistering and slabbing.
The self-repair material is supported applied to ship, aircraft, aircraft, vehicle, medical instrument, building or aquatic products
It grows, is such as applied in the automatically cleaning of waterproof and anticorrosion, steel surface processing, the hydrophobic oleophobic coating of windshield, exterior wall and sculpture
Material, the outer protective of military industry equipment, the waterproof and anticorrosion of oil pipeline outer layer, oleophobic pipeline lining non-resistance coating, it is hydrophobic dredge
Textile fabric, marine antifouling waterproof anti-corrosion outer protective, aquaculture device waterproof anti-corrosion outer protective of oil type etc. are big absolutely
The application on part thereof surface.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (10)
1. a kind of self-repair material, which is characterized in that including mushy polytetrafluoroethylene film, and in the polytetrafluoroethyl-ne
Filled perfluoropolymer in the hole of alkene film, the mass ratio that the (per) fluoropolymer accounts for polytetrafluoroethylene film are more than
0.1wt%, the fixed amount of (per) fluoropolymer described in the hole of the polytetrafluoroethylene film are 6g/m2~20g/m2。
2. self-repair material according to claim 1, which is characterized in that the aperture of the polytetrafluoroethylene film hole
0.1~1.5 micron, porosity is more than 82%.
3. self-repair material according to claim 1, which is characterized in that the polytetrafluoroethylene film passes through plasma
Processing is modified.
4. self-repair material according to claim 1, which is characterized in that the (per) fluoropolymer include perfluoroethylene-propylene (copolymer),
Perfluorooctylethyl group acrylate, perfluoro octyl sulfonic acid and its salt, perfluoro caprylic acid and its salt.
5. a kind of preparation method of self-repair material, which is characterized in that include the following steps:
S1. mushy polytetrafluoroethylene film and (per) fluoropolymer are provided, the (per) fluoropolymer accounts for polytetrafluoroethylene film
Mass ratio be more than 0.1wt%;
S2. it cleans:Polytetrafluoroethylene film is cleaned by ultrasonic with cleaning agent, is then rinsed well with deionized water, at room temperature very
Sky is dry;
S3. corona treatment is modified the polytetrafluoroethylene film through over cleaning;
S4. vacuum impregnation:Modified polytetrafluoroethylene film is impregnated into the molten liquid of (per) fluoropolymer, dipping is vacuumized, makes
(per) fluoropolymer is impregnated into the hole of polytetrafluoroethylene film, the polymerization of perfluor described in the hole of the polytetrafluoroethylene film
The fixed amount of object is 6g/m2~20g/m2;
S5. by vacuum-impregnated polytetrafluoroethylene film with solvent by the excessive residual (per) fluoropolymer on surface wash off to get
To the self-repair material.
6. preparation method according to claim 5, which is characterized in that in the step S2 respectively use cleaning agent acetone and
Methanol is cleaned by ultrasonic, dry 4h~6h.
7. preparation method according to claim 5, which is characterized in that be placed in polytetrafluoroethylene film in the step S3
It is handled in normal-temperature plasma equipment, atmosphere is air, radio-frequency power 20W~140W, processing time 5min~10min.
8. preparation method according to claim 5, which is characterized in that (per) fluoropolymer is placed in totally-enclosed in the step S4
Vessel in heating melt, obtain the molten liquid of (per) fluoropolymer;Vacuumize dipping 10min~20min.
9. preparation method according to claim 5, which is characterized in that the solvent in the step S5 include acetone and just oneself
Alkane.
10. a kind of application of self-repair material, which is characterized in that the self-repair material be applied to ship, aircraft, aircraft,
Vehicle, medical instrument, building or aquaculture.
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