CN117511401A - Pipeline heat-insulating anticorrosive paint and preparation method thereof - Google Patents
Pipeline heat-insulating anticorrosive paint and preparation method thereof Download PDFInfo
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- CN117511401A CN117511401A CN202311656147.1A CN202311656147A CN117511401A CN 117511401 A CN117511401 A CN 117511401A CN 202311656147 A CN202311656147 A CN 202311656147A CN 117511401 A CN117511401 A CN 117511401A
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- 239000003973 paint Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 74
- 239000011521 glass Substances 0.000 claims abstract description 68
- 239000000440 bentonite Substances 0.000 claims abstract description 63
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 63
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 63
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical class [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 51
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004005 microsphere Substances 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 14
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 13
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 13
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 101
- 239000003607 modifier Substances 0.000 claims description 43
- 239000011324 bead Substances 0.000 claims description 40
- 238000001035 drying Methods 0.000 claims description 36
- 238000005406 washing Methods 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 15
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 14
- 229920001661 Chitosan Polymers 0.000 claims description 12
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 12
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 238000000498 ball milling Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 8
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 8
- 238000002715 modification method Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- 239000001509 sodium citrate Substances 0.000 claims description 7
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 7
- 239000002253 acid Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of coatings, and in particular discloses a heat-insulating anticorrosive coating for a pipeline and a preparation method thereof, wherein the heat-insulating anticorrosive coating comprises the following raw materials in parts by weight: 30-35 parts of organic silicon resin, 20-25 parts of styrene-acrylic emulsion, 10-15 parts of bentonite regulating glass microsphere agent, 4-7 parts of modified silicon carbide whisker agent, 2-4 parts of ethylene glycol, 3-5 parts of hydroxyethyl cellulose, 2-4 parts of silane coupling agent KH560 and 30-35 parts of water. The heat-insulating anticorrosive paint disclosed by the invention adopts organic silicon resin and styrene-acrylic emulsion to be matched and modified by adding glycol, hydroxyethyl cellulose and a silane coupling agent KH560 as auxiliary agents, and the added bentonite is used for adjusting the cooperation of the glass microsphere agent and the modified silicon carbide whisker agent, so that the heat-insulating anticorrosive paint can be used for improving heat insulation and adhesion in a coordinated manner, and the stability of a product is obvious under the condition of acid corrosion.
Description
Technical Field
The invention relates to the technical field of anti-corrosion paint, in particular to a heat-insulating anti-corrosion paint for a pipeline and a preparation method thereof.
Background
The heat-insulating anticorrosive paint is more and more applied to pipelines, has good heat-insulating and heat-preserving effects, can be preserved, and enhances the application efficiency of the paint, and the traditional heat-insulating anticorrosive paint is mostly prepared from resin raw materials matched with conventional raw materials, so that heat insulation and corrosion prevention can be realized, but the paint has poor application adhesive force performance in the pipelines, the coordination improvement of heat insulation and adhesive force of products is difficult to realize, and the stability of the products is further reduced under the acid corrosion condition, so that the use efficiency of the products is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a heat-insulating anticorrosive paint for a pipeline and a preparation method thereof, so as to solve the problems in the prior art.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a heat-insulating anticorrosive paint for pipelines, which comprises the following raw materials in parts by weight:
30-35 parts of organic silicon resin, 20-25 parts of styrene-acrylic emulsion, 10-15 parts of bentonite regulating glass microsphere agent, 4-7 parts of modified silicon carbide whisker agent, 2-4 parts of ethylene glycol, 3-5 parts of hydroxyethyl cellulose, 2-4 parts of silane coupling agent KH560 and 30-35 parts of water.
Preferably, the heat-insulating anticorrosive paint for the pipeline comprises the following raw materials in parts by weight:
32.5 parts of organic silicon resin, 22.5 parts of styrene-acrylic emulsion, 12.5 parts of bentonite regulating glass microsphere agent, 5.5 parts of modified silicon carbide whisker agent, 3 parts of ethylene glycol, 4 parts of hydroxyethyl cellulose, 3 parts of silane coupling agent KH560 and 32.5 parts of water.
Preferably, the preparation method of the bentonite regulating glass microsphere agent comprises the following steps:
s01: adding 3-5 parts by weight of yttrium nitrate solution into 6-9 parts by weight of deionized water, and then adding 1-2 parts by weight of sodium dodecyl benzene sulfonate, 1-3 parts by weight of glycolic acid and 0.25-0.35 part by weight of zirconia to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 5-9% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
Preferably, the stirring temperature of the primary stirring treatment is 48-52 ℃, the stirring rotating speed is 350-400r/min, and the stirring time is 1-2h; the stirring temperature of the secondary stirring treatment is 52-55 ℃, the stirring rotating speed is 450-500r/min, and the stirring time is 20-30min.
Preferably, the yttrium nitrate solution has a mass fraction of 2-5%.
Preferably, the preparation method of the bentonite modifier comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with mass fraction of 2%, stirring uniformly, washing with water, drying, heat-treating at 310-320 ℃ for 5-10min, cooling to 50 ℃ at a speed of 2-5 ℃/min, and preserving heat for later use;
3-5 parts by weight of bentonite for heat preservation, 2-5 parts by weight of lanthanum chloride solution and 4-7 parts by weight of chitosan solution are ball-milled for 1-2 hours at the rotating speed of 1000-1500r/min, and after ball milling, the bentonite modifier is obtained by water washing and drying.
Preferably, the mass fraction of the lanthanum chloride solution is 2-5%; the mass fraction of the chitosan solution is 3-5%.
Preferably, the modification method of the modified silicon carbide whisker agent comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 2-5 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
Preferably, the ultrasonic power of the ultrasonic dispersion treatment is 300-400W, and the ultrasonic time is 25-35min.
The invention also provides a preparation method of the heat-insulating anticorrosive paint for the pipeline, which comprises the following steps:
weighing raw materials according to parts by weight; sequentially adding the raw materials into a stirrer, stirring and uniformly mixing to obtain the heat-insulating anticorrosive coating for the pipeline.
Compared with the prior art, the invention has the following beneficial effects:
according to the heat-insulating anticorrosive paint disclosed by the invention, the organic silicon resin and the styrene-acrylic emulsion are matched, the ethylene glycol, the hydroxyethyl cellulose and the silane coupling agent KH560 are added to serve as auxiliary agents for blending improvement, the bentonite is added to regulate the cooperation of the glass microsphere agent and the modified silicon carbide whisker agent, the organic silicon resin and the styrene-acrylic emulsion cooperate together, the heat insulation and the adhesion of the obtained heat-insulating anticorrosive paint can be improved in a coordinated manner, and the stability of a product is obvious under the condition of acid corrosion; the bentonite regulating glass bead agent adopts glass beads to be activated and improved by sodium hydroxide solution, then cooperates with bentonite modifier in a modified liquid system, and in a lamellar bentonite reinforcing system, cooperates with the glass beads to enhance the heat insulation and adhesive force performance of the product, and cooperates with yttrium nitrate solution, sodium dodecyl benzene sulfonate, glycolic acid and zirconia to better coordinate and improve the performance effect of the product and the acid corrosion resistance stability of the product in the system; firstly placing bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 2%, uniformly stirring, then washing with water, drying, then placing at 310-320 ℃ for heat treatment for 5-10min, then cooling to 50 ℃ at the speed of 2-5 ℃/min, improving the lamellar spacing of the bentonite, optimizing the activity efficiency of the bentonite, and performing coordinated coordination through lanthanum chloride solution and chitosan solution together so that the obtained bentonite modifier has better synergistic effect with glass microspheres, and the performance of the product is further enhanced; the modified silicon carbide whisker agent adopts silicon carbide whisker to be treated by specific modifier liquid, so that the modified silicon carbide whisker agent better cooperates with bentonite-regulated glass bead agent, and the performance of the product is further enhanced;
description of the embodiments
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a pipeline heat-insulating anticorrosive paint which comprises the following raw materials in parts by weight:
30-35 parts of organic silicon resin, 20-25 parts of styrene-acrylic emulsion, 10-15 parts of bentonite regulating glass microsphere agent, 4-7 parts of modified silicon carbide whisker agent, 2-4 parts of ethylene glycol, 3-5 parts of hydroxyethyl cellulose, 2-4 parts of silane coupling agent KH560 and 30-35 parts of water.
In a particularly preferred embodiment, the proportions of the components may be as follows:
32.5 parts of organic silicon resin, 22.5 parts of styrene-acrylic emulsion, 12.5 parts of bentonite regulating glass microsphere agent, 5.5 parts of modified silicon carbide whisker agent, 3 parts of ethylene glycol, 4 parts of hydroxyethyl cellulose, 3 parts of silane coupling agent KH560 and 32.5 parts of water.
The preparation method of the bentonite-regulated glass microsphere agent comprises the following steps:
s01: adding 3-5 parts by weight of yttrium nitrate solution with the mass fraction of 2-5% into 6-9 parts by weight of deionized water, and then adding 1-2 parts by weight of sodium dodecyl benzene sulfonate, 1-3 parts by weight of glycolic acid and 0.25-0.35 part by weight of zirconia to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 5-9% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
The stirring temperature of the primary stirring treatment is 48-52 ℃, the stirring rotating speed is 350-400r/min, and the stirring time is 1-2h; the stirring temperature of the secondary stirring treatment is 52-55 ℃, the stirring rotating speed is 450-500r/min, and the stirring time is 20-30min.
In addition, the preparation method of the bentonite modifier comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with mass fraction of 2%, stirring uniformly, washing with water, drying, heat-treating at 310-320 ℃ for 5-10min, cooling to 50 ℃ at a speed of 2-5 ℃/min, and preserving heat for later use;
3-5 parts by weight of bentonite for heat preservation, 2-5 parts by weight of lanthanum chloride solution with the mass fraction of 2-5% and 4-7 parts by weight of chitosan solution with the mass fraction of 3-5% are subjected to ball milling for 1-2 hours at the rotating speed of 1000-1500r/min, and after ball milling, the bentonite modifier is obtained through water washing and drying.
The modification method of the modified silicon carbide whisker agent comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 2-5 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
The ultrasonic power of the ultrasonic dispersion treatment of the embodiment is 300-400W, and the ultrasonic time is 25-35min.
Example 1
The pipeline heat-insulating anticorrosive paint comprises the following raw materials in parts by weight:
30 parts of organic silicon resin, 20 parts of styrene-acrylic emulsion, 10 parts of bentonite regulating glass microsphere agent, 4 parts of modified silicon carbide whisker agent, 2 parts of ethylene glycol, 3 parts of hydroxyethyl cellulose, 2 parts of silane coupling agent KH560 and 30 parts of water.
The preparation method of the bentonite-adjusting glass microsphere agent in the embodiment comprises the following steps:
s01: adding 3 parts by weight of yttrium nitrate solution with the mass fraction of 2% into 6 parts by weight of deionized water, and then adding 1 part by weight of sodium dodecyl benzene sulfonate, 1 part by weight of glycolic acid and 0.25 part by weight of zirconium oxide to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 5% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
The stirring temperature of the primary stirring treatment in the embodiment is 48 ℃, the stirring rotating speed is 350r/min, and the stirring time is 1h; the stirring temperature of the secondary stirring treatment is 52 ℃, the stirring rotating speed is 450r/min, and the stirring time is 20min.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 2%, uniformly stirring, washing with water, drying, then putting into a temperature of 310 ℃ for heat treatment for 5min, then cooling to 50 ℃ at the speed of 2 ℃/min, and preserving heat for later use;
3 parts by weight of bentonite for heat preservation, 2 parts by weight of lanthanum chloride solution with the mass fraction of 2% and 4 parts by weight of chitosan solution with the mass fraction of 3% are subjected to ball milling for 1h at the rotating speed of 1000r/min, and after ball milling, washing and drying are carried out, so that the bentonite modifier is obtained.
The modification method of the modified silicon carbide whisker agent of the embodiment comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 2 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
The ultrasonic power of the ultrasonic dispersion treatment in this embodiment was 300W and the ultrasonic time was 25min.
Example 2
The heat-insulating anticorrosive paint for the pipeline comprises the following raw materials in parts by weight:
35 parts of organic silicon resin, 25 parts of styrene-acrylic emulsion, 15 parts of bentonite regulating glass microsphere agent, 7 parts of modified silicon carbide whisker agent, 4 parts of ethylene glycol, 5 parts of hydroxyethyl cellulose, 4 parts of silane coupling agent KH560 and 35 parts of water.
The preparation method of the bentonite-adjusting glass microsphere agent in the embodiment comprises the following steps:
s01: adding 5 parts by weight of yttrium nitrate solution with the mass fraction of 5% into 9 parts by weight of deionized water, and then adding 2 parts by weight of sodium dodecyl benzene sulfonate, 3 parts by weight of glycolic acid and 0.35 part by weight of zirconium oxide to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 9% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
The stirring temperature of the primary stirring treatment in the embodiment is 52 ℃, the stirring rotating speed is 400r/min, and the stirring time is 2h; the stirring temperature of the secondary stirring treatment is 55 ℃, the stirring rotating speed is 500r/min, and the stirring time is 30min.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 2%, uniformly stirring, washing with water, drying, then putting into 320 ℃ for heat treatment for 10min, cooling to 50 ℃ at the speed of 5 ℃/min, and preserving heat for later use;
5 parts by weight of bentonite for heat preservation, 5 parts by weight of lanthanum chloride solution with the mass fraction of 5% and 7 parts by weight of chitosan solution with the mass fraction of 5% are subjected to ball milling for 2 hours at the rotating speed of 1500r/min, and after ball milling, washing and drying are carried out, so that the bentonite modifier is obtained.
The modification method of the modified silicon carbide whisker agent of the embodiment comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 5 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
The ultrasonic power of the ultrasonic dispersion treatment in this embodiment was 400W and the ultrasonic time was 35min.
Example 3
The pipeline heat-insulating anticorrosive paint comprises the following raw materials in parts by weight:
32.5 parts of organic silicon resin, 22.5 parts of styrene-acrylic emulsion, 12.5 parts of bentonite regulating glass microsphere agent, 5.5 parts of modified silicon carbide whisker agent, 3 parts of ethylene glycol, 4 parts of hydroxyethyl cellulose, 3 parts of silane coupling agent KH560 and 32.5 parts of water.
The preparation method of the bentonite-adjusting glass microsphere agent in the embodiment comprises the following steps:
s01: adding 4 parts by weight of yttrium nitrate solution with the mass fraction of 3.5% into 7.5 parts by weight of deionized water, and then adding 1.5 parts by weight of sodium dodecyl benzene sulfonate, 2 parts by weight of glycolic acid and 0.30 part by weight of zirconia to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 7% of the total weight of the glass bead pre-adjustment into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead adjustment agent.
The stirring temperature of the primary stirring treatment in the embodiment is 50 ℃, the stirring rotating speed is 370r/min, and the stirring time is 1.5h; the stirring temperature of the secondary stirring treatment is 53 ℃, the stirring rotating speed is 470r/min, and the stirring time is 25min.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 2%, uniformly stirring, washing with water, drying, then putting into 315 ℃ for heat treatment for 7.5min, then cooling to 50 ℃ at the speed of 3.5 ℃/min, and preserving heat for later use;
4 parts by weight of bentonite for heat preservation, 3.5 parts by weight of lanthanum chloride solution with the mass fraction of 3.5% and 5.5 parts by weight of chitosan solution with the mass fraction of 4% are ball-milled for 1.5 hours at the rotating speed of 1250r/min, and after ball milling, the bentonite modifier is obtained by washing and drying.
The modification method of the modified silicon carbide whisker agent of the embodiment comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 3.5 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
The ultrasonic power of the ultrasonic dispersion treatment in this embodiment was 350W and the ultrasonic time was 30min.
Example 4
The pipeline heat-insulating anticorrosive paint comprises the following raw materials in parts by weight:
32 parts of organic silicon resin, 22 parts of styrene-acrylic emulsion, 11 parts of bentonite regulating glass microsphere agent, 5 parts of modified silicon carbide whisker agent, 3 parts of ethylene glycol, 4 parts of hydroxyethyl cellulose, 3 parts of silane coupling agent KH560 and 32 parts of water.
The preparation method of the bentonite-adjusting glass microsphere agent in the embodiment comprises the following steps:
s01: adding 4 parts by weight of yttrium nitrate solution with the mass fraction of 3% into 7 parts by weight of deionized water, and then adding 1.2 parts by weight of sodium dodecyl benzene sulfonate, 1.5 parts by weight of glycolic acid and 0.28 part by weight of zirconium oxide to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 6% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
The stirring temperature of the primary stirring treatment in the embodiment is 49 ℃, the stirring rotating speed is 360r/min, and the stirring time is 1.2h; the stirring temperature of the secondary stirring treatment is 54 ℃, the stirring rotating speed is 460r/min, and the stirring time is 22min.
The preparation method of the bentonite modifier of the embodiment comprises the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with the mass fraction of 2%, uniformly stirring, washing with water, drying, then putting into a 312 ℃ for heat treatment for 6min, then cooling to 50 ℃ at the speed of 3 ℃/min, and preserving heat for later use;
4 parts by weight of bentonite for heat preservation, 3 parts by weight of lanthanum chloride solution with the mass fraction of 3% and 5 parts by weight of chitosan solution with the mass fraction of 4% are ball-milled for 1.2 hours at the rotating speed of 1200r/min, and after ball milling, the bentonite modifier is obtained by washing and drying.
The modification method of the modified silicon carbide whisker agent of the embodiment comprises the following steps:
delivering the silicon carbide whisker into a modifier liquid with the weight being 3 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
The ultrasonic power of the ultrasonic dispersion treatment in this embodiment was 320W, and the ultrasonic time was 28min.
Comparative example 1
The difference from example 3 is that no bentonite conditioning glass microbeads were added.
Comparative example 2
The difference from example 3 is that no bentonite modifier is added in the preparation of the bentonite-adjusted glass microsphere agent.
Comparative example 3
The difference from example 3 is that the bentonite modifier is prepared without treatment with lanthanum chloride solution and chitosan solution.
Comparative example 4
The difference from example 3 is that the modified liquid in the preparation of bentonite-adjusted glass microsphere agent is replaced by deionized water.
Comparative example 5
The difference from example 3 is that no modified silicon carbide whisker agent was added.
Comparative example 6
The difference from example 3 is that the modified silicon carbide whisker agent was prepared without treatment with a modifier liquid.
Examples 1 to 4 and comparative examples 1 to 6 were tested under conventional conditions while being subjected to a 2% hydrochloric acid mist condition, and the measurement results are as follows
The product of the embodiment 3 of the invention has excellent heat conductivity coefficient and adhesive force performance, the prepared product can realize coordinated obvious improvement of heat insulation and adhesive force, and the product has obvious acid corrosion resistance stability effect;
one of the glass microsphere agent and the modified silicon carbide whisker agent is not added, the performance of the product is obviously deteriorated, and the two agents are adopted to cooperate together; the bentonite modifier is not added in the preparation of the bentonite-modified glass microsphere agent, the lanthanum chloride solution and the chitosan solution are not adopted in the preparation of the bentonite modifier, the modified liquid is replaced by deionized water in the preparation of the bentonite-modified glass microsphere agent, the modified silicon carbide whisker agent is not adopted in the preparation of the modified silicon carbide whisker agent, the performance of the product is prone to deterioration, and the bentonite-modified glass microsphere agent and the modified silicon carbide whisker agent prepared by the method have the most obvious performance effects, and the other methods are adopted to replace the bentonite-modified glass microsphere agent and the modified silicon carbide whisker agent, so that the effects are not as obvious as the invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The heat-insulating anticorrosive paint for the pipeline is characterized by comprising the following raw materials in parts by weight:
30-35 parts of organic silicon resin, 20-25 parts of styrene-acrylic emulsion, 10-15 parts of bentonite regulating glass microsphere agent, 4-7 parts of modified silicon carbide whisker agent, 2-4 parts of ethylene glycol, 3-5 parts of hydroxyethyl cellulose, 2-4 parts of silane coupling agent KH560 and 30-35 parts of water.
2. The heat-insulating anticorrosive paint for pipelines according to claim 1, wherein the heat-insulating anticorrosive paint for pipelines comprises the following raw materials in parts by weight:
32.5 parts of organic silicon resin, 22.5 parts of styrene-acrylic emulsion, 12.5 parts of bentonite regulating glass microsphere agent, 5.5 parts of modified silicon carbide whisker agent, 3 parts of ethylene glycol, 4 parts of hydroxyethyl cellulose, 3 parts of silane coupling agent KH560 and 32.5 parts of water.
3. The heat-insulating anticorrosive paint for pipelines according to claim 1, wherein the preparation method of the bentonite-adjusting glass bead agent is as follows:
s01: adding 3-5 parts by weight of yttrium nitrate solution into 6-9 parts by weight of deionized water, and then adding 1-2 parts by weight of sodium dodecyl benzene sulfonate, 1-3 parts by weight of glycolic acid and 0.25-0.35 part by weight of zirconia to obtain a modified liquid;
s02: placing the glass beads in a sufficient amount of sodium hydroxide solution with mass fraction of 5%, stirring and mixing uniformly, and then washing with water and drying to obtain a glass bead pre-dispensing agent;
s03: pre-regulating the glass beads, and stirring the modified liquid according to the weight ratio of 2:5 for later use after stirring;
s04: and then adding bentonite modifier accounting for 5-9% of the total weight of the glass bead pre-regulator into the S03 product, continuing the secondary stirring treatment, and finally washing and drying to obtain the glass bead regulator.
4. The heat-insulating anticorrosive paint for pipelines according to claim 3, wherein the stirring temperature of the primary stirring treatment is 48-52 ℃, the stirring rotation speed is 350-400r/min, and the stirring time is 1-2h; the stirring temperature of the secondary stirring treatment is 52-55 ℃, the stirring rotating speed is 450-500r/min, and the stirring time is 20-30min.
5. A pipe heat insulating anticorrosive paint according to claim 3, wherein the yttrium nitrate solution has a mass fraction of 2-5%.
6. The heat-insulating anticorrosive paint for pipelines according to claim 3, wherein the bentonite modifier is prepared by the following steps:
putting bentonite into a sufficient amount of hydrochloric acid solution with mass fraction of 2%, stirring uniformly, washing with water, drying, heat-treating at 310-320 ℃ for 5-10min, cooling to 50 ℃ at a speed of 2-5 ℃/min, and preserving heat for later use;
3-5 parts by weight of bentonite for heat preservation, 2-5 parts by weight of lanthanum chloride solution and 4-7 parts by weight of chitosan solution are ball-milled for 1-2 hours at the rotating speed of 1000-1500r/min, and after ball milling, the bentonite modifier is obtained by water washing and drying.
7. The heat-insulating anticorrosive paint for pipelines according to claim 6, wherein the mass fraction of the lanthanum chloride solution is 2-5%; the mass fraction of the chitosan solution is 3-5%.
8. The heat-insulating anticorrosive paint for pipelines according to claim 1, wherein the modification method of the modified silicon carbide whisker agent is as follows:
delivering the silicon carbide whisker into a modifier liquid with the weight which is 2-5 times of the total weight of the silicon carbide whisker for ultrasonic dispersion treatment, and after the treatment is finished, washing and drying to obtain a modified silicon carbide whisker agent;
the modifier liquid is prepared by uniformly stirring tetra-n-propyl zirconate, nano silica sol and sodium citrate solution with the mass fraction of 10% according to the weight ratio of 1:2:5.
9. The heat-insulating anticorrosive paint for pipelines according to claim 7, wherein the ultrasonic power of the ultrasonic dispersion treatment is 300-400W and the ultrasonic time is 25-35min.
10. A process for preparing a thermal insulation anticorrosive coating for pipes according to any of claims 1 to 9, comprising the steps of:
weighing raw materials according to parts by weight; sequentially adding the raw materials into a stirrer, stirring and uniformly mixing to obtain the heat-insulating anticorrosive coating for the pipeline.
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Cited By (1)
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