CN106479288A - A kind of anticorrosive coating for chemical pump liner - Google Patents
A kind of anticorrosive coating for chemical pump liner Download PDFInfo
- Publication number
- CN106479288A CN106479288A CN201610871652.1A CN201610871652A CN106479288A CN 106479288 A CN106479288 A CN 106479288A CN 201610871652 A CN201610871652 A CN 201610871652A CN 106479288 A CN106479288 A CN 106479288A
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- parts
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- epoxy resin
- organosilicon
- coating
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Classifications
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- 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
- C09D127/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The present invention relates to paint field, especially a kind of anticorrosive coating for chemical pump liner.The present invention adopts following raw material:PTFE resin, modifying epoxy resin by organosilicon, solvent, antioxidant, firming agent, firming agent accelerator, levelling agent, defoamer composition.Have superelevation corrosion-resistant, high temperature resistant, impact strength is high, long service life the features such as.There is very strong protected effect as liner to chemical pump.
Description
Technical field
The present invention relates to paint field is and in particular to a kind of anticorrosive coating for chemical pump liner.
Technical background
Industrial, a lot of pumps all touch Korrosionsmedium, directly affect the service life of the associated components of pump.Traditional
The pump of rustless steel and casting iron craft can not meet actual production demand, has emerged in large numbers some fluoroplastics materials in recent years on market
The chemical pump of matter, but due to its non-refractory, not environmentally the shortcomings of can not extensively come into operation.And the inside application in pump is prevented
Etching ground is a kind of cost-effective mode, present anticorrosive coating most popular for epoxy coating, it has
Excellent Corrosion Protection, but its solidfied material is typically partially crisp, and antistripping, cracking resistance, shock resistance are poor, easily take off after coating
Fall.
Content of the invention
For solving problem above, the present invention is prepared for being used for of one kind using PTFE resin, modifying epoxy resin by organosilicon
The anticorrosive coating of work pump liner.There is excellent corrosion-resistant, weather-proof, viscous etc. performance, improve coating hardness, hydrophobicity increases
By force.
The present invention is achieved by the following technical solutions：
A kind of anticorrosive coating for chemical pump liner, coating is made up of two parts of A and B, part A and part B mass parts
Than for 100：10, wherein, A part is by PTFE resin, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and molten
Agent forms, in the A component of every 100 mass parts, PTFE resin 40-45 part, modifying epoxy resin by organosilicon 10-20 part, anti-
Oxidant 0.5-1.0 part, defoamer 0.2-0.4 part, levelling agent 0.5-1.0 part, drier 0.01-0.03 part, balance of solvent；
Part B is made up of firming agent, firming agent accelerator and solvent, in the B component of every 100 mass parts, firming agent 20-30 part,
Curing accelerator 10-15 part, balance of solvent.
Preferably, described modifying epoxy resin by organosilicon is made up of following components by weight：Tetraethoxysilane 45
Part, 8 parts of hexamethyl disiloxane, 12 parts of E-44 epoxy resin, γ -5 parts of chloropropyl trialkoxy silane, 25 parts of ethanol, third
5 parts of ketone, molar concentration are 3 parts of 0.01mol/L acetum, and its synthetic method is：By tetraethoxysilane, hexamethyl two silica
Alkane, ethanol add in reaction vessel, and heating in water bath, to 50 DEG C, starts Deca acetum, after 30min completion of dropping, 65～
It is incubated 3h at 75 DEG C, is subsequently adding γ-chloropropyl trialkoxy silane, be incubated 2h, form the siloxanes tree containing chloropropyl
Fat, then it is slowly added to the solution of epoxy resin and acetone with stirring, continue stirring reaction 5h, be cooled to room temperature and obtain final product organosilicon
Modified epoxy.
Preferably, the preparation method of this coating includes following step：
（1）Beaker adds the PTFE resin of formula ratio, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and
Solvent, mixing speed is 1000 ~ 1200rpm, and mixing time is 20 ~ 30min, obtains mixed material a；
（2）A beaker is separately taken to add firming agent, curing accelerator and the solvent of formula ratio, mixing speed is 500 ~ 600rpm, stirs
Time of mixing is 10 ~ 15min, obtains mixed material b；
（3）Low whipping speed is under 300 ~ 350rpm, and b is slowly added in a, and continuing in speed is to stir under 700 ~ 800rpm
Mix 30min to a and mix homogeneously with b and obtain final product.
（4）By said mixture barrelling after 100 mesh filter screen filtration.
Preferably, firming agent used by part B be O-phthalic amine, curing accelerator be 2- ethyl imidazol(e), A partly in molten
Agent is methyl acetate, butyl acetate and isopropanol, and its mass ratio is 8：6 ：4, B partly middle solvent be isobutyl acetate and second
Propyl propionate, its mass ratio is 1：2.
Beneficial effects of the present invention：The epoxy resin etching ground of technical solution of the present invention and existing similar painting
Material relatively mainly improves：First, the active group employing on PTFE resin, with metal substrate forms chemical bond, increases
Apply the adhesive force of interlayer, and then improve corrosion resistance on metal substrate for the coating, make this coating have following characteristic：1st, resistance to
Corrosivity, 2, thermostability, 3, sliding, 4, moisture resistance, 5, mar proof, 6, non-stick；2nd, A partly in employ spy
Determine the modifying epoxy resin by organosilicon that formula and method are obtained.Chloropropyl contained by this modified resin is being mixed with epoxy resin
Afterwards, carry out crosslinking curing, form the cross-linked network structure containing-O-Cl-O- key, this hybrid inorganic-organic structure, enhance painting
The thermostability of layer and chemicals-resistant corrosivity, increased adhesive force, improve corrosion resistance；3rd, the use of auxiliary agent, improves each group
Divide the compatibility in coating system, improve the overall performance of coating, improve coating and resist the ability that corrosion spreads.
Specific embodiment：
Embodiment 1
A kind of anticorrosive coating for chemical pump liner, coating is made up of two parts of A and B, part A and part B mass parts
Than for 100：10, wherein, A part is by PTFE resin, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and molten
Agent forms, in the A component of every 100 mass parts, 40 parts of PTFE resin, 10 parts of modifying epoxy resin by organosilicon, antioxidant
0.5 part, 0.2 part of defoamer, 0.5 part of levelling agent, 0.01 part of drier, balance of solvent；Part B is promoted by firming agent, firming agent
Enter agent and solvent composition, in the B component of every 100 mass parts, 20 parts of firming agent, 10 parts of curing accelerator, balance of molten
Agent.
Preferably, described modifying epoxy resin by organosilicon is made up of following components by weight：Tetraethoxysilane 45
Part, 8 parts of hexamethyl disiloxane, 12 parts of E-44 epoxy resin, γ -5 parts of chloropropyl trialkoxy silane, 25 parts of ethanol, third
5 parts of ketone, molar concentration are 3 parts of 0.01mol/L acetum, and its synthetic method is：By tetraethoxysilane, hexamethyl two silica
Alkane, ethanol add in reaction vessel, and heating in water bath, to 50 DEG C, starts Deca acetum, after 30min completion of dropping, 65～
It is incubated 3h at 75 DEG C, is subsequently adding γ-chloropropyl trialkoxy silane, be incubated 2h, form the siloxanes tree containing chloropropyl
Fat, then it is slowly added to the solution of epoxy resin and acetone with stirring, continue stirring reaction 5h, be cooled to room temperature and obtain final product organosilicon
Modified epoxy.
Preferably, the preparation method of this coating includes following step：
（1）Beaker adds the PTFE resin of formula ratio, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and
Solvent, mixing speed is 1000rpm, and mixing time is 20min, obtains mixed material a；
（2）A beaker is separately taken to add firming agent, curing accelerator and the solvent of formula ratio, mixing speed is 500rpm, during stirring
Between be 10min, obtain mixed material b；
（3）Low whipping speed is under 300rpm, and b is slowly added in a, continues to stir 30min under speed is for 700rpm
Mix homogeneously to a with b.
（4）By said mixture barrelling after 100 mesh filter screen filtration.
Preferably, firming agent used by part B be O-phthalic amine, curing accelerator be 2- ethyl imidazol(e), A partly in molten
Agent is methyl acetate, butyl acetate and isopropanol, and its mass ratio is 8：6 ：4, B partly middle solvent be isobutyl acetate and second
Propyl propionate, its mass ratio is 1：2.
Embodiment 2
A kind of anticorrosive coating for chemical pump liner, coating is made up of two parts of A and B, part A and part B mass parts
Than for 100：10, wherein, A part is by PTFE resin, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and molten
Agent forms, in the A component of every 100 mass parts, 45 parts of PTFE resin, 20 parts of modifying epoxy resin by organosilicon, antioxidant
1.0 parts, 0.4 part of defoamer, 1.0 parts of levelling agent, 0.03 part of drier, balance of solvent；Part B is promoted by firming agent, firming agent
Enter agent and solvent composition, in the B component of every 100 mass parts, 30 parts of firming agent, 15 parts of curing accelerator, balance of molten
Agent.
Preferably, described modifying epoxy resin by organosilicon is made up of following components by weight：Tetraethoxysilane 45
Part, 8 parts of hexamethyl disiloxane, 12 parts of E-44 epoxy resin, γ -5 parts of chloropropyl trialkoxy silane, 25 parts of ethanol, third
5 parts of ketone, molar concentration are 3 parts of 0.01mol/L acetum, and its synthetic method is：By tetraethoxysilane, hexamethyl two silica
Alkane, ethanol add in reaction vessel, and heating in water bath, to 50 DEG C, starts Deca acetum, after 30min completion of dropping, 65～
It is incubated 3h at 75 DEG C, is subsequently adding γ-chloropropyl trialkoxy silane, be incubated 2h, form the siloxanes tree containing chloropropyl
Fat, then it is slowly added to the solution of epoxy resin and acetone with stirring, continue stirring reaction 5h, be cooled to room temperature and obtain final product organosilicon
Modified epoxy.
Preferably, the preparation method of this coating includes following step：
（1）Beaker adds the PTFE resin of formula ratio, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and
Solvent, mixing speed is 1200rpm, and mixing time is 30min, obtains mixed material a；
（2）A beaker is separately taken to add firming agent, curing accelerator and the solvent of formula ratio, mixing speed is 600rpm, during stirring
Between be 15min, obtain mixed material b；
（3）Low whipping speed is under 350rpm, and b is slowly added in a, continues to stir 30min under speed is for 800rpm
Mix homogeneously with b to a and obtain final product.
（4）By said mixture barrelling after 100 mesh filter screen filtration.
Preferably, firming agent used by part B be O-phthalic amine, curing accelerator be 2- ethyl imidazol(e), A partly in molten
Agent is methyl acetate, butyl acetate and isopropanol, and its mass ratio is 8：6 ：4, B partly middle solvent be isobutyl acetate and second
Propyl propionate, its mass ratio is 1：2.
Comparative example 1
On the basis of a method according to the invention, it is not added with the PTFE resin of part A, other steps are consistent, and are fabricated to coating.
Comparative example 2
On the basis of a method according to the invention, it is not added with modifying epoxy resin by organosilicon, other steps are consistent, and are fabricated to coating
Matched group
With existing ordinary epoxy resin coating as a control group.
Above-mentioned coating is carried out decay resistance and Mechanics Performance Testing：
（1）Medium infusion method：Above-mentioned coating is coated on sheet metal, 20 japanning samples made by every kind of coating, are immersed in matter
Amount concentration is 37.5% concentrated hydrochloric acid（Or the sodium hydroxide that mass concentration is 40%）In, mensure is dipped into breakdown of coating and lost efficacy to one
Determine the time of degree needs；
（2）Acetic acid salt spray test：20 japanning samples made by every kind of coating, and sample is placed on tested surface in salt fog cabinet upward, to allow
On tested surface, the test period is for salt fog free settling:4、8、24、48、96、144、240、360、480、720h
（3）Impact test presses GB/T1732-1993, and test plate (panel) is tinplate, 20 ± 3 μm of thickness；
（4）Detect the mechanical property of anticorrosive coating with reference to GB GB528-91
Result of the test is as follows：Wherein in decay resistance test, the sample made using the inventive method is not subject to obvious shadow
Ring, and comparative example and matched group all occur in that loss of gloss, come off, variable color, foaming, softening, the phenomenon such as loss of adhesion；Real in mechanics
Test middle result such as following table：
In table, data is meansigma methodss.
It can be seen that the inventive method has prominent anticorrosion and mechanical property than prior art from above test,
Give full play to the effect of this formula, have market prospect.
Claims (4)
1. a kind of anticorrosive coating for chemical pump liner is it is characterised in that coating is made up of two parts of A and B, part A
With part B mass parts than for 100：10, wherein, A part is by PTFE resin, modifying epoxy resin by organosilicon, defoamer, levelling
Agent, drier and solvent composition, in the A component of every 100 mass parts, PTFE resin 40-45 part, silicon-modified epoxy
Resin 10-20 part, antioxidant 0.5-1.0 part, defoamer 0.2-0.4 part, levelling agent 0.5-1.0 part, drier 0.01-0.03
Part, balance of solvent；Part B is made up of firming agent, firming agent accelerator and solvent, in the B component of every 100 mass parts,
Firming agent 20-30 part, curing accelerator 10-15 part, balance of solvent.
2. a kind of anticorrosive coating for chemical pump liner according to claim 1 is it is characterised in that described organosilicon
Modified epoxy is made up of following components by weight：45 parts of tetraethoxysilane, 8 parts of hexamethyl disiloxane, E-44 ring
12 parts of oxygen tree fat, γ -5 parts of chloropropyl trialkoxy silane, 25 parts of ethanol, 5 parts of acetone, molar concentration are 0.01mol/L vinegar
3 parts of acid solution, its synthetic method is：Tetraethoxysilane, hexamethyl disiloxane, ethanol are added in reaction vessel, water-bath
It is heated to 50 DEG C, starts Deca acetum, after 30min completion of dropping, be incubated 3h at 65～75 DEG C, be subsequently adding γ-chlorine
Propyl trialkoxy silane, is incubated 2h, forms the silicone resin containing chloropropyl, then is slowly added to epoxy resin with stirring
With the solution of acetone, continue stirring reaction 5h, be cooled to room temperature and obtain final product modifying epoxy resin by organosilicon.
3. a kind of anticorrosive coating for chemical pump liner according to claim 1 is it is characterised in that the system of this coating
Preparation Method includes following step：
（1）Beaker adds the PTFE resin of formula ratio, modifying epoxy resin by organosilicon, defoamer, levelling agent, drier and
Solvent, mixing speed is 1000 ~ 1200rpm, and mixing time is 20 ~ 30min, obtains mixed material a；
（2）A beaker is separately taken to add firming agent, curing accelerator and the solvent of formula ratio, mixing speed is 500 ~ 600rpm, stirs
Time of mixing is 10 ~ 15min, obtains mixed material b；
（3）Low whipping speed is under 300 ~ 350rpm, and b is slowly added in a, and continuing in speed is to stir under 700 ~ 800rpm
Mix 30min to a and mix homogeneously with b and obtain final product.
（4）By said mixture barrelling after 100 mesh filter screen filtration.
4. a kind of anticorrosive coating for chemical pump liner according to claim 3 is it is characterised in that used by part B
Firming agent is O-phthalic amine, and curing accelerator is 2- ethyl imidazol(e), and partly middle solvent is methyl acetate, butyl acetate and different to A
Propanol, its mass ratio is 8：6 ：4, B partly middle solvent be isobutyl acetate and propyl acetate, its mass ratio be 1：2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871652.1A CN106479288A (en) | 2016-09-30 | 2016-09-30 | A kind of anticorrosive coating for chemical pump liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871652.1A CN106479288A (en) | 2016-09-30 | 2016-09-30 | A kind of anticorrosive coating for chemical pump liner |
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| CN106479288A true CN106479288A (en) | 2017-03-08 |
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| CN201610871652.1A Pending CN106479288A (en) | 2016-09-30 | 2016-09-30 | A kind of anticorrosive coating for chemical pump liner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017977A (en) * | 2017-12-06 | 2018-05-11 | 北京林业大学 | One kind is used for udometric super-amphiphobic corrosion-resistant finishes and preparation method thereof |
| CN109516727A (en) * | 2018-11-22 | 2019-03-26 | 盐城欣昌新型建材有限公司 | A kind of corrosion-resistant cement pipe pile of photovoltaic and preparation method thereof |
| CN110105825A (en) * | 2019-05-17 | 2019-08-09 | 苏州群鹰防腐材料有限公司 | Room temperature self-curing PTFE anticorrosive paint and preparation method thereof |
| WO2022041931A1 (en) * | 2020-08-31 | 2022-03-03 | 三联泵业股份有限公司 | Preparation method for lining material of slurry pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108017977A (en) * | 2017-12-06 | 2018-05-11 | 北京林业大学 | One kind is used for udometric super-amphiphobic corrosion-resistant finishes and preparation method thereof |
| CN108017977B (en) * | 2017-12-06 | 2020-04-28 | 北京林业大学 | Super-amphiphobic corrosion-resistant coating for rain gauge and preparation method thereof |
| CN109516727A (en) * | 2018-11-22 | 2019-03-26 | 盐城欣昌新型建材有限公司 | A kind of corrosion-resistant cement pipe pile of photovoltaic and preparation method thereof |
| CN110105825A (en) * | 2019-05-17 | 2019-08-09 | 苏州群鹰防腐材料有限公司 | Room temperature self-curing PTFE anticorrosive paint and preparation method thereof |
| WO2022041931A1 (en) * | 2020-08-31 | 2022-03-03 | 三联泵业股份有限公司 | Preparation method for lining material of slurry pump |
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