CN106280150B - A kind of pipeline of lining teflon - Google Patents
A kind of pipeline of lining teflon Download PDFInfo
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- CN106280150B CN106280150B CN201610673480.7A CN201610673480A CN106280150B CN 106280150 B CN106280150 B CN 106280150B CN 201610673480 A CN201610673480 A CN 201610673480A CN 106280150 B CN106280150 B CN 106280150B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of pipeline of lining teflon, including pipeline body, it is provided with hollow portion on the pipeline body, modified Teflon is lined on the pipe hollow portion inner wall, the modified Teflon includes following parts by weight composition：Polytetrafluoroethylene (PTFE)：100~150 parts of polybenzoate：5~10 part of 4 hydroxy benzo phenyl ketone：0.5~1 part of dispersant：5~10 parts of coupling agents：3~10 parts of modified graphenes：5~10 parts.In conclusion the Fluorine-lined pipeline of the present invention has preferable peel strength and antistatic property, while during long-time use, additionally it is possible to keep preferable peel strength and antistatic property.
Description
Technical field
The present invention relates to a kind of production equipment, more particularly to a kind of pipeline of lining teflon.
Background technology
Pipeline is to be used to convey gas, liquid or with solid particle with what pipe, pipe connector and valve etc. were connected into
Fluid device.In general, after the superchargings such as air blower, compressor, pump and boiler, low pressure is flowed to from the high pressure of pipeline for fluid
Pressure or the gravity conveying of fluid itself can also be used in place.Having many uses for pipeline is general, be used primarily in water supply, draining, heat supply,
It gives gas, in long distance delivery oil and natural gas, agricultural irrigation, hydraulic engineering and various commercial plants.
A strata tetrafluoroethene can be served as a contrast in specific use, in pipeline, polytetrafluoroethylene (PTFE) is served as a contrast by equal-pressure method in pipeline
Portion, equal-pressure method are by workpiece（The parts such as pipeline, elbow, the threeway of steel）, rubber bag, stay tube, PTFE powders, end cap, sealing
After installation, it is placed in the closed autoclave of an energy pressure-bearing 30Mpa.Hydraulic pressure is increased into 30Mpa, rubber bag expansion will
PTFE powders are closely compacted the inner wall in workpiece.It is inside and outside since inside and outside wall of the workpiece in kettle is by the hydraulic pressure of 30Mpa
Stress is equal and cancels out each other, and workpiece load is little, is not destroyed, therefore claims equal-pressure method.
But the cohesive force of polytetrafluoroethylene (PTFE) and ordinary metal ducts is poor, cannot achieve preferable bond effect.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of adhere to metallic conduit firmly to serve as a contrast
The pipeline of polytetrafluoroethylene (PTFE).
To achieve the above object, the present invention provides following technical solutions：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 ~ 150 parts
Polybenzoate：5 ~ 10 parts
4- hydroxy benzo phenyl ketones：0.5 ~ 1 part
Dispersant：5 ~ 10 parts
Coupling agent：3 ~ 10 parts
Modified graphene：5 ~ 10 parts.
As a further improvement on the present invention：
The coupling agent be bis- (3- (triethoxysilicane) propyl) tetrasulfides, γ-aminopropyltriethoxy diethoxy silane,
At least one of 1H, 1H, 2H, 2H- perfluoro capryl triethoxysilane.
As a further improvement on the present invention：
(3- (triethoxysilicane) propyl) tetrasulfides bis- in the coupling agent, γ-aminopropyltriethoxy diethoxy silane,
The mass ratio of 1H, 1H, 2H, 2H- perfluoro capryl triethoxysilane is 2:1:3.
As a further improvement on the present invention：
The dispersant is bis- (4- hydroxyphenyls) the propane makrolon of 2,2-, 3- trimethyl silicon substrate -1- propanesulfonates, N- ammonia
Base formyl methyl ethanesulfonic acid is at least one.
As a further improvement on the present invention：
Bis- (4- hydroxyphenyls) the propane makrolon of 2,2-, 3- trimethyl silicon substrate -1- propanesulfonates, N- ammonia in the dispersant
The mass ratio of base formyl methyl ethanesulfonic acid mixture is 2:2:3.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of ice bath is passed below
Under the conditions of react 20 ~ 50 minutes and obtain preliminary oxidation graphene, raise the temperature to 30 DEG C again later, potassium permanganate reaction be added
20 ~ 40 minutes, obtain graphene oxide.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：The modified coupling agent includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
As a further improvement on the present invention：
In the step 2, adds graphene oxide into potassium dihydrogen phosphate-sodium hydrate buffer solution and cleaned.
As a further improvement on the present invention：
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
In the present invention, modified Teflon is using polytetrafluoroethylene (PTFE) as carrier, by the way that polybenzoate and 4- hydroxy benzenes is added
And phenyl ketone adjusts the molecular structure of entire polytetrafluoroethylene (PTFE) so that polytetrafluoroethylene (PTFE) is ensureing the same of its acid-fast alkali-proof
When, enable to polytetrafluoroethylene (PTFE) have certain elasticity, can under conditions of equal-pressure method technique, can play it is more preferable with it is golden
Belong to ontology fitting, meanwhile, and can play preferably to generate with metal pipe internal wall under the action of micro active group and divide
Sub- intermolecular forces ensure that lining is not fallen out.
Later by the way that coupling agent is added, enable to during the reaction, form tridimensional network so that polytetrafluoroethyl-ne
Alkene has certain elasticity, in this way, in the edge of pipeline, it will be able in pipeline and pipeline or pipeline and flanged joint mistake
Cheng Zhong can have preferable sealing effect under the action of elastic restoring force.
In the selection of coupling agent, bis- (3- (triethoxysilicane) propyl) tetrasulfides, γ-aminopropyltriethoxy diethyl are selected
Oxysilane, 1H, 1H, 2H, 2H- perfluoro capryl triethoxysilanes, above-mentioned three kinds of compounds inherently have preferably and poly-
The ability of tetrafluoroethene coupling, can form tridimensional network.
The addition of modified graphene is primarily to improve whole antistatic property, in the process of modified graphene
In, it is aoxidized first by hydrogen oxide and Boratex, hydrogen oxide is frequently used for aoxidizing as common oxidant, and boric acid
The addition of sodium is primarily to adjusting oxidizing intensity, prevents excessive oxidation so that preliminary oxidation is more uniform, and excessive oxidation can make
Its to lose be property that graphene just has in itself.In addition after by preliminary oxidation, potassium permanganate is added and carries out again
Oxidation, so that the graphene oxide hole of final oxidation out is more uniform.
Later, in coupling process, by be added gamma-mercaptopropyltriethoxysilane, vinyltriethoxysilane,
Trimethyl (trifluoromethyl) silane, silester progress react with graphene oxide, form modified modified work
Property charcoal, by the common modification of obstructed type silane, especially by by the way that gamma-mercaptopropyltriethoxysilane, ethylene is added
The common modification of ethyl triethoxy silicane alkane, trimethyl (trifluoromethyl) silane so that modified graphene can have preferably with
The compatibility of modified poly- polytetrafluoroethylene (PTFE) mixing, meanwhile, the active group of institute's band also can be with changing by coupling agent modified mistake
Property polytetrafluoroethylene (PTFE) generate chemical reaction so that modified graphene after being mixed into entirety, can be played with better
Molecular force causes waste and performance bad so as to prevent powdered modified graphene to be therefrom lost in.And changing
Property coupling agent in be added silester can improve gamma-mercaptopropyltriethoxysilane, vinyltriethoxysilane, trimethyl
Degree of mixing of (trifluoromethyl) silane in mixed process so that there is preferably dispersibility on the whole so that modified stone
Black alkene property is more uniform.
The weatherability of its antistatic property can be increased substantially by the cooperation of modified graphene and modified Teflon,
I.e. during long-time use, still there is preferable antistatic property.
The addition of dispersant then mainly plays a dispersion effect to whole materials and makes mixing more uniform, and 2,2- is bis-
(4- hydroxyphenyls) propane makrolon, 3- trimethyl silicon substrate -1- propanesulfonates, N- carbamoyl methyls ethanesulfonic acid can play
Preferable dispersion effect, coupling agent, modified activated carbon in material all have preferable compatibility, can further increase
The uniform properties of whole physical property.As bis- (4- hydroxyphenyls) the propane makrolon of 2,2-, 3- trimethyl silicon substrate -1- propanesulfonates, N-
When carbamoyl methyl ethanesulfonic acid is used in mixed way, weatherability can be further increased, after ensureing long-time use, lining and metal
Pipeline has preferable peel strength and antistatic property.
It during modified graphene, is cleaned finally by the buffer solution configured, reaction can be washed away and completed
Impurity afterwards and side reaction product, meanwhile, the structure of modified activated carbon itself will not be damaged, ensures the work of modified activated carbon
Property.
In conclusion the Fluorine-lined pipeline of the present invention has preferable peel strength and antistatic property, while when long
Between during use, additionally it is possible to keep preferable peel strength and antistatic property.
Specific implementation mode
Embodiment one：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Polybenzoate：7 parts
4- hydroxy benzo phenyl ketones：1 part
Bis- (4- hydroxyphenyls) the propane makrolon of 2,2-：7 parts
Bis- (3- (triethoxysilicane) propyl) tetrasulfides：3 parts
Modified graphene：7 parts；
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of ice bath is passed below
Under the conditions of react 30 minutes and obtain preliminary oxidation graphene, raise the temperature to 30 DEG C again later, potassium permanganate reaction 30 be added
Minute, obtain graphene oxide.
The modified graphene includes prepared by following method：The modified coupling agent includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
In the step 2, adds graphene oxide into potassium dihydrogen phosphate-sodium hydrate buffer solution and cleaned.
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
Embodiment two：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：125 parts
Polybenzoate：10 parts
4- hydroxy benzo phenyl ketones：0.7 part
3- trimethyl silicon substrate -1- propanesulfonates：5 parts
γ-aminopropyltriethoxy diethoxy silane：7 parts
Modified graphene：10 parts；
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of ice bath is passed below
Under the conditions of react 30 minutes and obtain preliminary oxidation graphene, raise the temperature to 30 DEG C again later, potassium permanganate reaction 30 be added
Minute, obtain graphene oxide.
The modified graphene includes prepared by following method：The modified coupling agent includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
In the step 2, adds graphene oxide into potassium dihydrogen phosphate-sodium hydrate buffer solution and cleaned.
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
Embodiment three：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：150 parts
Polybenzoate：5 parts
4- hydroxy benzo phenyl ketones：0.5 part
N- carbamoyl methyl ethanesulfonic acids：10 parts
1H, 1H, 2H, 2H- perfluoro capryl triethoxysilane：10 parts
Modified graphene：5 parts；
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of ice bath is passed below
Under the conditions of react 30 minutes and obtain preliminary oxidation graphene, raise the temperature to 30 DEG C again later, potassium permanganate reaction 30 be added
Minute, obtain graphene oxide.
The modified graphene includes prepared by following method：The modified coupling agent includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
In the step 2, adds graphene oxide into potassium dihydrogen phosphate-sodium hydrate buffer solution and cleaned.
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
Example IV：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Polybenzoate：7 parts
4- hydroxy benzo phenyl ketones：1 part
Dispersant：7 parts
Bis- (4- hydroxyphenyls) the propane makrolon of 2,2-, 3- trimethyl silicon substrate -1- propanesulfonates, N- ammonia in the dispersant
The mass ratio of base formyl methyl ethanesulfonic acid mixture is 2:2:3.
Coupling agent：3 parts
(3- (triethoxysilicane) propyl) tetrasulfides bis- in the coupling agent, γ-aminopropyltriethoxy diethoxy silane,
The mass ratio of 1H, 1H, 2H, 2H- perfluoro capryl triethoxysilane is 2:1:3.
Modified graphene：7 parts；
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene.
As a further improvement on the present invention：
The modified graphene includes prepared by following method：
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of ice bath is passed below
Under the conditions of react 30 minutes and obtain preliminary oxidation graphene, raise the temperature to 30 DEG C again later, potassium permanganate reaction 30 be added
Minute, obtain graphene oxide.
The modified graphene includes prepared by following method：The modified coupling agent includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
In the step 2, adds graphene oxide into potassium dihydrogen phosphate-sodium hydrate buffer solution and cleaned.
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
Comparative example one：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Modified graphene：7 parts；
Comparative example two：
Embodiment one：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Polybenzoate：7 parts
4- hydroxy benzo phenyl ketones：1 part
Bis- (4- hydroxyphenyls) the propane makrolon of 2,2-：7 parts
Bis- (3- (triethoxysilicane) propyl) tetrasulfides：3 parts
Graphene：7 parts；
Comparative example three：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Bis- (4- hydroxyphenyls) the propane makrolon of 2,2-：7 parts
Bis- (3- (triethoxysilicane) propyl) tetrasulfides：3 parts
Graphene：7 parts；
Example IV：
A kind of pipeline of lining teflon, including pipeline body are provided with hollow portion, the pipe on the pipeline body
Modified Teflon is lined on hollow portion inner wall, the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 parts
Polybenzoate：7 parts
4- hydroxy benzo phenyl ketones：1 part
Graphene：7 parts；
The raw material of above-mentioned comparative example and embodiment is mixed, is added in double screw extruder is made after mixing
Plastic pellet, then plastic pellet is clayed into power, it by equal-pressure method, is lining into castiron tube body, detects its stripping later
From intensity, sheet resistance.In addition to this, the tube body of modified Teflon will be entirely lined in ultra violet lamp 5 hours, 15 small
When, 50 it is small in the case of detection peel strength and sheet resistance.
In the present invention, modified Teflon is using polytetrafluoroethylene (PTFE) as carrier, by the way that polybenzoate and 4- hydroxy benzenes is added
And phenyl ketone adjusts the molecular structure of entire polytetrafluoroethylene (PTFE) so that polytetrafluoroethylene (PTFE) is ensureing the same of its acid-fast alkali-proof
When, enable to polytetrafluoroethylene (PTFE) have certain elasticity, can under conditions of equal-pressure method technique, can play it is more preferable with it is golden
Belong to ontology fitting, meanwhile, and can play preferably to generate with metal pipe internal wall under the action of micro active group and divide
Sub- intermolecular forces ensure that lining is not fallen out.
Later by the way that coupling agent is added, enable to during the reaction, form tridimensional network so that polytetrafluoroethyl-ne
Alkene has certain elasticity, in this way, in the edge of pipeline, it will be able in pipeline and pipeline or pipeline and flanged joint mistake
Cheng Zhong can have preferable sealing effect under the action of elastic restoring force.In addition.
In the selection of coupling agent, bis- (3- (triethoxysilicane) propyl) tetrasulfides, γ-aminopropyltriethoxy diethyl are selected
Oxysilane, 1H, 1H, 2H, 2H- perfluoro capryl triethoxysilanes, above-mentioned three kinds of compounds inherently have preferably and poly-
The ability of tetrafluoroethene coupling, can form tridimensional network.
The addition of modified graphene is primarily to improve whole antistatic property, in the process of modified graphene
In, it is aoxidized first by hydrogen oxide and Boratex, hydrogen oxide is frequently used for aoxidizing as common oxidant, and boric acid
The addition of sodium is primarily to adjusting oxidizing intensity, prevents excessive oxidation so that preliminary oxidation is more uniform, and excessive oxidation can make
Its to lose be property that graphene just has in itself.In addition after by preliminary oxidation, potassium permanganate is added and carries out again
Oxidation, so that the graphene oxide hole of final oxidation out is more uniform.
Later, in coupling process, by be added gamma-mercaptopropyltriethoxysilane, vinyltriethoxysilane,
Trimethyl (trifluoromethyl) silane, silester progress react with graphene oxide, form modified modified work
Property charcoal, by the common modification of obstructed type silane, especially by by the way that gamma-mercaptopropyltriethoxysilane, ethylene is added
The common modification of ethyl triethoxy silicane alkane, trimethyl (trifluoromethyl) silane so that modified graphene can have preferably with
The compatibility of modified poly- polytetrafluoroethylene (PTFE) mixing, meanwhile, the active group of institute's band also can be with changing by coupling agent modified mistake
Property polytetrafluoroethylene (PTFE) generate chemical reaction so that modified graphene after being mixed into entirety, can be played with better
Molecular force causes waste and performance bad so as to prevent powdered modified graphene to be therefrom lost in.And changing
Property coupling agent in be added silester can improve gamma-mercaptopropyltriethoxysilane, vinyltriethoxysilane, trimethyl
Degree of mixing of (trifluoromethyl) silane in mixed process so that there is preferably dispersibility on the whole so that modified stone
Black alkene property is more uniform.
The weatherability of its antistatic property can be increased substantially by the cooperation of modified graphene and modified Teflon,
I.e. during long-time use, still there is preferable antistatic property.
The addition of dispersant then mainly plays a dispersion effect to whole materials and makes mixing more uniform, and 2,2- is bis-
(4- hydroxyphenyls) propane makrolon, 3- trimethyl silicon substrate -1- propanesulfonates, N- carbamoyl methyls ethanesulfonic acid can play
Preferable dispersion effect, coupling agent, modified activated carbon in material all have preferable compatibility, can further increase
The uniform properties of whole physical property.As bis- (4- hydroxyphenyls) the propane makrolon of 2,2-, 3- trimethyl silicon substrate -1- propanesulfonates, N-
When carbamoyl methyl ethanesulfonic acid is used in mixed way, weatherability can be further increased, after ensureing long-time use, lining and metal
Pipeline has preferable peel strength and antistatic property.
It during modified graphene, is cleaned finally by the buffer solution configured, reaction can be washed away and completed
Impurity afterwards and side reaction product, meanwhile, the structure of modified activated carbon itself will not be damaged, ensures the work of modified activated carbon
Property.
In conclusion the Fluorine-lined pipeline of the present invention has preferable peel strength and antistatic property, while when long
Between during use, additionally it is possible to keep preferable peel strength and antistatic property.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications under the premise of not departing from raw material of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of pipeline of lining teflon, it is characterised in that：Including pipeline body, it is provided on the pipeline body hollow
Portion, modified Teflon is lined on the pipe hollow portion inner wall, and the modified Teflon includes following parts by weight composition：
Polytetrafluoroethylene (PTFE)：100 ~ 150 parts
Polybenzoate：5 ~ 10 parts
4- hydroxy benzo phenyl ketones：0.5 ~ 1 part
Dispersant：5 ~ 10 parts
Coupling agent：3 ~ 10 parts
Modified graphene：5 ~ 10 parts；
The modified graphene includes prepared by following method：
Step 1：Graphene is added in strong oxidizer and carries out that graphene oxide slurry is obtained by the reaction；
Step 2：Surface of graphene oxide oxidant is removed；
Step 3：Modified coupling agent is added modification in graphene oxide and obtains modified graphene；
The step 1：To graphene is added in the mixture of hydrogen peroxide and Boratex, 10 DEG C of condition of ice bath is passed below
Lower reaction obtains preliminary oxidation graphene in 20 ~ 50 minutes, raises the temperature to 30 DEG C again later, be added potassium permanganate reaction 20 ~
40 minutes, obtain graphene oxide.
2. a kind of pipeline of lining teflon according to claim 1, it is characterised in that：
The coupling agent be bis- (3- (triethoxysilicane) propyl) tetrasulfides, γ-aminopropyltriethoxy diethoxy silane, 1H,
At least one of 1H, 2H, 2H- perfluoro capryl triethoxysilane.
3. a kind of pipeline of lining teflon according to claim 2, it is characterised in that：Bis- (3- in the coupling agent
(triethoxysilicane) propyl) tetrasulfide, γ-aminopropyltriethoxy diethoxy silane, 1H, 1H, 2H, three second of 2H- perfluoro capryls
The mass ratio of oxysilane is 2:1:3.
4. a kind of pipeline of lining teflon according to claim 3, it is characterised in that：The dispersant is that 2,2- is bis-
(4- hydroxyphenyls) propane makrolon, 3- trimethyl silicon substrate -1- propanesulfonates, N- carbamoyl methyls ethanesulfonic acid are at least one.
5. a kind of pipeline of lining teflon according to claim 4, it is characterised in that：2,2- is bis- in the dispersant
The matter of (4- hydroxyphenyls) propane makrolon, 3- trimethyl silicon substrate -1- propanesulfonates, N- carbamoyl methyl ethanesulfonic acid mixtures
Amount is than being 2:2:3.
6. a kind of pipeline of lining teflon according to claim 5, it is characterised in that：It is prepared by the modified graphene
Modification coupling agent in method and step three includes following parts by weight composition：
Gamma-mercaptopropyltriethoxysilane：30 parts
Vinyltriethoxysilane：10 parts
Trimethyl (trifluoromethyl) silane：5 parts
Silester：5 parts.
7. a kind of pipeline of lining teflon according to claim 6, it is characterised in that：In the step 2, by oxygen
Graphite alkene is added in potassium dihydrogen phosphate-sodium hydrate buffer solution and is cleaned.
8. a kind of pipeline of lining teflon according to claim 7, it is characterised in that：
The buffer solution includes following parts by weight composition：
5 parts of sodium chloride
0.5 part of potassium chloride
0.5 part of potassium dihydrogen phosphate
1.5 parts of disodium hydrogen phosphate
2 parts of phosphoglycerol.
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| CN108036121A (en) * | 2017-12-18 | 2018-05-15 | 中裕软管科技股份有限公司 | A kind of corrosion resistance graphene petroleum pipeline and preparation method thereof |
| CN108407312A (en) * | 2018-03-22 | 2018-08-17 | 郑细玉 | A kind of low-friction coefficient Fluorine-lined plate note technique |
| CN108485135A (en) * | 2018-03-22 | 2018-09-04 | 郑细玉 | A kind of Fluorine-lined pipeline of ultralow friction coefficient |
| CN108948606A (en) * | 2018-05-21 | 2018-12-07 | 丽水学院 | A kind of polyphosphazene polymer shares reaction kettle |
| CN109595402A (en) * | 2018-12-10 | 2019-04-09 | 运城学院 | A kind of chemical industry equipment pipeline and its pipeline processing technique |
| CN110452483A (en) * | 2019-07-03 | 2019-11-15 | 南京三禾防腐设备有限公司 | Serve as a contrast the conductive valve and its Fluorine-lined technique of tetrafluoro |
| CN111363278B (en) * | 2020-03-16 | 2022-04-01 | 南京三禾防腐设备有限公司 | Fluorine-lined anti-static pipeline and processing technology thereof |
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| CN103819854A (en) * | 2014-02-19 | 2014-05-28 | 中国科学院宁波材料技术与工程研究所 | Fluoropolymer/graphene composite and its preparation method |
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| CN105367960A (en) * | 2015-11-30 | 2016-03-02 | 无锡大塘复合材料有限公司 | Heat-conductive hard Teflon plastic |
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