CN115613004A - Plastic pipe with coated inner wall and preparation method thereof - Google Patents
Plastic pipe with coated inner wall and preparation method thereof Download PDFInfo
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- CN115613004A CN115613004A CN202110783398.0A CN202110783398A CN115613004A CN 115613004 A CN115613004 A CN 115613004A CN 202110783398 A CN202110783398 A CN 202110783398A CN 115613004 A CN115613004 A CN 115613004A
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- resistance
- plastic pipe
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- diamond
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- 239000004033 plastic Substances 0.000 title claims abstract description 68
- 229920003023 plastic Polymers 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 21
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 28
- 239000012495 reaction gas Substances 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims description 4
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 claims description 4
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 3
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000005012 migration Effects 0.000 abstract description 7
- 238000013508 migration Methods 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000002585 base Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 150000003384 small molecules Chemical class 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 1
- 210000002381 plasma Anatomy 0.000 description 24
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 6
- 238000010894 electron beam technology Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 238000010884 ion-beam technique Methods 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 241000255789 Bombyx mori Species 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000011268 retreatment Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/403—Oxides of aluminium, magnesium or beryllium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
-
- 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
- F16L9/12—Rigid pipes of plastics with or without reinforcement
Abstract
A plastic pipe with a coated inner wall and a preparation method thereof belong to the technical field of plastic pipe application. The plastic pipe with a coated inner wall is characterized in that the coated inner wall of the plastic pipe is provided with a coated film, the coated film is titanium oxide, aluminum oxide or diamond-like carbon, the thickness of the coated film is 10-1000 nm, and the coated film is bonded to the surface of a plastic pipe base body through chemical bonds. The plastic pipe is made of PVC, PP, PE or PET, and has a thickness of 100-5000 μm. The deposited coating film has the following excellent properties of gas, liquid and oil barrier, migration resistance, adhesion resistance, low friction, scouring resistance and wear resistance, and the plastic pipe has the excellent properties of acid and alkali resistance, corrosion resistance, scratch resistance, moisture resistance, water absorption resistance, deliquescence resistance, water absorption resistance, small molecule migration resistance and adsorption resistance, and can be directly used for subsequent processes. The plastic pipe has good coating film adhesion on the inner wall, can resist liquid flowing and washing, resist adhesion, can be stored at low temperature, resist falling, have no damage and have long service life.
Description
Technical Field
The invention belongs to the technical field of plastic pipe application, relates to a plastic pipe with a coated inner wall and a preparation method thereof, and particularly relates to a functional plastic pipe with an inner surface coated with titanium oxide, aluminum oxide and diamond-like carbon (DLC) coated films and a preparation method thereof.
Background
The traditional plastic pipe has loose structure, rough surface, large friction coefficient, high air permeability, water permeability and water absorption, low corrosion resistance, low hardness, large friction coefficient, poor micromolecule migration and aging performance, and cannot be placed in a vacuum state for a long time. At present, in order to improve the performance of the plastic pipe, the plastic pipe is mainly made of special materials or coated with organic coating on the inner surface. But the special material has single performance or high hardness and high friction coefficient; or only moisture and oxygen are blocked, and the oxygen and the water vapor cannot be blocked simultaneously; the problems of pollution of stored objects, short storage time, poor weather resistance, low adhesive force after soaking, low hardness, poor wear resistance and the like exist when the surface of the plastic pipe is coated with the organic coating. In addition, the preparation method of the plastic pipe also has the problems of complex process, high cost, difficult recycling, substandard environmental protection and the like.
The titanium oxide, aluminum oxide and diamond-like carbon (DLC) coating film has high barrier (moisture and oxygen barrier) performance, and has the characteristics of moisture resistance, water absorption resistance, deliquescence resistance, water loss resistance, high weather resistance, acid and alkali corrosion resistance, small molecule migration resistance, mildew and silkworm food resistance, oil seepage resistance, high hardness, small friction coefficient, wear resistance, scouring resistance, direct subsequent processes, no need of surface retreatment, no need of surface reactivation and the like. Therefore, the titanium oxide, the aluminum oxide and the diamond-like carbon (DLC) have wide application prospect when being coated on the inner surface of the plastic pipe.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a plastic pipe with a coated inner wall, and the specific technical scheme is as follows:
the plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is provided with a coated film, the coated film is titanium oxide, aluminum oxide or diamond-like carbon (DLC), the thickness of the coated film is 10-1000 nm, and the coated film is bonded to the surface of a plastic pipe base body through chemical bonds.
Furthermore, the plastic pipe is made of PVC, PP, PE or PET, and the thickness of the plastic pipe is 100-5000 microns.
Furthermore, the thickness of the plated film is 50-500 nm.
The invention aims to provide a preparation method of a plastic pipe with a coated inner wall, which comprises the following steps:
A. placing the plastic tube in a plasma environment, and introducing discharge gas and reaction gas;
B. inputting a monomer for depositing a nano titanium oxide, aluminum oxide and diamond-like carbon (DLC) coating film, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing the nano titanium oxide, aluminum oxide or DLC coating film on the inner wall surface of the base plastic pipe.
Further, the discharge gas is argon, nitrogen or a mixed gas thereof.
Further, the plasma environment is electron beam, ion beam, capacitive coupling, inductive coupling, microwave, surface wave, helicon wave, electron cyclotron resonance, dielectric barrier discharge, or jet plasma.
Further, the titanium oxide is TiO x Wherein 1 is<x<2 or TiO 2 The aluminum oxide is AlO x Wherein 1<x<1.5 or Al 2 O 3 And the diamond-like carbon (DLC) is a-C and H coating film.
Further, the monomer of the titanium oxide is TiCl 4 Ethyl titanate or butyl titanate, etc.; the monomer of the aluminum oxide is AlCl 3 Trimethylaluminum, triethylaluminum, or the like; the diamond-like monomer is CH 4 、C 2 H 2 Or C 2 H 5 OH and the like.
Further, the reaction gas is O 2 、N 2 O or CO 2 And the like.
The functional plastic pipe with the nano titanium oxide, aluminum oxide and diamond-like carbon (DLC) coating on the inner wall prepared by the invention has the advantages of moisture barrier (moisture and oxygen barrier) performance, moisture and water resistance, deliquescence resistance, water loss resistance, strong weather resistance, acid and alkali corrosion resistance, micromolecule migration resistance, mildew and silkworm resistance, oil leakage resistance, scouring resistance, high hardness, small friction coefficient and wear resistance, can be directly subjected to subsequent processes, does not need surface retreatment, and does not influence the color of the plastic pipe. The specific properties are barrier properties: oxygen permeability of less than 10 -2 ml/pack/24h, typically 1-3X 10 -2 ml/pack/24h (PET tube); water vapor permeability of less than 10 -3 g/pack/24h, typically 1-3X 10 -3 g/pack/24h (PET tube); mechanical properties: hardness greater than 10GPa (or 4H), generally 12GPa, and friction coefficient less than 0.3, generally 0.2.
The invention discloses a functional plastic pipe with a nano titanium oxide, aluminum oxide and a diamond-like carbon (DLC) layer coated on the surface of the inner wall, wherein a coating film or layer is realized by Plasma Enhanced Chemical Vapor Deposition (PECVD), monomers are introduced into plasmas such as electron beams, ion beams, capacitive coupling, inductive coupling, microwaves, surface waves, helicon waves, electron cyclotron resonance, dielectric barrier discharge and jet plasmas, and are dissociated and ionized in a plasma environment to form a precursor, the precursor reacts with ionic oxygen and atomic oxygen to generate a nano cluster, and the nano cluster reacts with a functional group on the surface of the plastic pipe to form C-O-X (X is Ti, al or C) Chemical bond bonding, so that a compact coating film is grown on the surface.
The method is characterized in that the nano-plating film is directly prepared on the surface of the inner wall of the plastic pipe by adopting an advanced plasma technology, and a-C-O-C-O-X (X is Ti, al or C) chemical bond is formed by the reaction of a precursor and hydroxyl functional groups on the surface of the plastic pipe, so that the binding force between the plating film and the plastic pipe is increased. The compact inorganic material structure can prevent gas, moisture, grease and various small molecules from passing and migrating, and has the advantages of scour resistance, high hardness, small friction coefficient and wear resistance. The deposited coating film has certain functions, and subsequent processes can be directly carried out on the surface of the coating film.
The deposited coating film has the advantages of gas, liquid and oil blocking, migration resistance, adhesion resistance, low friction, scouring resistance and wear resistance, and the plastic pipe has the advantages of acid and alkali resistance, corrosion resistance, scratch resistance, moisture resistance, water absorption resistance, deliquescence resistance, water absorption resistance, small molecule migration resistance, adsorption resistance, and the like, and can be directly used for subsequent processes. The nanometer titanium oxide, aluminum oxide and diamond-like carbon (DLC) coating film is prepared on the inner wall of a common plastic pipe, and the precursor in deposition reacts with hydroxyl in the plastic pipe to form C-O-X (X is Ti, al or C) chemical bond combination, so that the inner wall coating film of the plastic pipe has good adhesion, can resist liquid flow scouring and adhesion, can be stored at low temperature, resists falling, is free from damage and has long service life.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is to be understood that the described embodiments are merely exemplary of some, and not necessarily all, embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
Example 1
The plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is coated with titanium oxide, and the thickness of the coated film is 50 nm. The plastic pipe is made of PVC and has the thickness of 100 mu m.
The preparation method comprises the following steps:
A. placing the plastic tube in a plasma environment, and introducing discharge gas and reaction gas, wherein the discharge gas is argon, nitrogen or a mixed gas thereof, and the reaction gas is O 2 、N 2 O or CO 2 . The plasma environment is electron beam, ion beam, capacitive coupling, inductive coupling, microwave, surface wave, helicon, electron cyclotron resonance, dielectric barrier discharge or jet plasma.
B. Inputting and depositing nano titanium oxide monomer, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing a nano titanium oxide coating film on the surface of the inner wall of the matrix plastic pipe. The monomer of the titanium oxide is TiCl 4 Ethyl titanate or butyl titanate.
Example 2
The plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is coated with aluminum oxide, and the thickness of the coated film is 200 nm. The plastic pipe is made of PE and has the thickness of 1000 mu m.
The preparation method comprises the following steps:
A. placing the plastic pipe in a plasma environment, introducing discharge gas and reaction gas, wherein the discharge gas is argon, nitrogen or a mixed gas thereof, and the reaction gas is O 2 、N 2 O or CO 2 . The plasma environment is electron beam, ion beam, capacitive coupling, inductive coupling, microwave, surface wave, helicon, electron cyclotron resonance, dielectric barrier discharge or jet plasma.
B. Inputting and depositing nano aluminum oxide monomer, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing a nano titanium oxide coating on the surface of the inner wall of the matrix plastic pipe. The monomer of the aluminum oxide is AlCl 3 Trimethylaluminum or triethylaluminum.
Example 3
The plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is coated with a diamond-like carbon film, and the thickness of the coated film is 500 nm. The plastic pipe is made of PP and has the thickness of 1500 mu m.
The preparation method comprises the following steps:
A. placing the plastic tube in a plasma environment, and introducing discharge gas and reaction gas, wherein the discharge gas is argon, nitrogen or a mixed gas thereof, and the reaction gas is O 2 、N 2 O or CO 2 . The plasma environment is electron beam, ion beam, capacitive coupling, inductive coupling, microwave, surface wave, helicon, electron cyclotron resonance, dielectric barrier discharge or jet plasma.
B. Inputting and depositing nanometer diamond-like carbon monomer, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing a nanometer titanium oxide coating film on the surface of the inner wall of the base plastic pipe. The diamond-like monomer is CH 4 、C 2 H 2 Or C 2 H 5 OH。
Example 4
The plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is coated with aluminum oxide, and the thickness of the coated film is 500 nm. The plastic pipe is made of PP and has the thickness of 5000 microns.
The preparation method comprises the following steps:
A. placing the plastic tube in a plasma environment, introducing discharge gas and reaction gas, wherein the discharge gas is argon, nitrogen or a mixed gas thereof, and the discharge gas is argon, nitrogen or a mixed gas thereofThe reaction gas is O 2 、N 2 O or CO 2 . The plasma environment is electron beam, ion beam, capacitive coupling, inductive coupling, microwave, surface wave, helicon, electron cyclotron resonance, dielectric barrier discharge or jet plasma.
B. Inputting and depositing a nano alumina monomer, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing a nano titanium oxide coating on the surface of the inner wall of the matrix plastic pipe. The monomer of the aluminum oxide is AlCl 3 Trimethylaluminum or triethylaluminum.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.
Claims (8)
1. The plastic pipe with the coated inner wall is characterized in that the coated inner wall of the plastic pipe is provided with a coated film, the coated film is titanium oxide, aluminum oxide or diamond-like carbon, the thickness of the coated film is 10-1000 nm, and the coated film is bonded to the surface of a plastic pipe base body through chemical bonds.
2. A plastics pipe according to claim 1, wherein the plastics pipe is of PVC, PP, PE or PET and has a thickness of 100 to 5000 μm.
3. A plastics pipe according to claim 1, wherein the coating has a thickness of from 50 to 500 nm.
4. A method of producing a plastic tube according to any one of claims 1 to 3, comprising the steps of:
A. placing the plastic tube in a plasma environment, and introducing discharge gas and reaction gas;
B. inputting a monomer for depositing the nano titanium oxide, the aluminum oxide and the diamond-like carbon coating film, carrying out chemical vapor deposition reaction on discharge gas and reaction gas in a plasma environment, and depositing the nano titanium oxide, the aluminum oxide or the diamond-like carbon coating film on the surface of the inner wall of the base plastic pipe.
5. The method according to claim 4, wherein the discharge gas is argon, nitrogen, or a mixed gas thereof.
6. The method according to claim 4, wherein the titanium oxide is TiO x Wherein 1 is<x<2 or TiO 2 The aluminum oxide is AlO x Wherein 1 is<x<1.5 or Al 2 O 3 And the diamond-like carbon is a-C and H coating film.
7. The method according to claim 4, wherein the monomer of titanium oxide is TiCl 4 Ethyl titanate or butyl titanate; the monomer of the aluminum oxide is AlCl 3 Trimethylaluminum or triethylaluminum; the diamond-like monomer is CH 4 、C 2 H 2 Or C 2 H 5 OH。
8. The method according to claim 4, wherein the reaction gas is O 2 、N 2 O or CO 2 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783398.0A CN115613004A (en) | 2021-07-12 | 2021-07-12 | Plastic pipe with coated inner wall and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783398.0A CN115613004A (en) | 2021-07-12 | 2021-07-12 | Plastic pipe with coated inner wall and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115613004A true CN115613004A (en) | 2023-01-17 |
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|---|---|---|---|
| CN202110783398.0A Pending CN115613004A (en) | 2021-07-12 | 2021-07-12 | Plastic pipe with coated inner wall and preparation method thereof |
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Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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