CN104530919A - Epoxy powder primer used for anticorrosion paint for outer walls of deep sea oil transportation steel pipes and preparing method thereof - Google Patents
Epoxy powder primer used for anticorrosion paint for outer walls of deep sea oil transportation steel pipes and preparing method thereof Download PDFInfo
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- CN104530919A CN104530919A CN201410647242.XA CN201410647242A CN104530919A CN 104530919 A CN104530919 A CN 104530919A CN 201410647242 A CN201410647242 A CN 201410647242A CN 104530919 A CN104530919 A CN 104530919A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/47—Levelling agents
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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
- 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
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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
- 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
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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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides an epoxy powder primer used for anticorrosion paint for outer walls of deep sea oil transportation steel pipes and a preparing method thereof. The epoxy powder primer comprises following raw materials by mass: 40-50 parts of E-12 epoxy resin, 10-25 parts of linear phenolic epoxy resin, 25-45 parts of a filler, 9-15 parts of a curing agent, 0.1-1 part of an antioxidant, 0.2-1 part of a coupling agent, 0.9-1.8 parts of benzoate, 0.3-1 part of a levelling agent, 1-3 parts of graphene, 1-2 parts of polyvinyl butyral, 3-5 parts of modified polytetrafluoroethylene wax micropowder, 0.2-0.4 part of rare earth chloride and 1-3 parts of pigment. The epoxy powder primer has excellent wear resistance, resistance to pressure, bending resistance and impact resistance, is excellent in adhesion force and fraction of coverage for steel pipes, and can effectively protect the steel pipes from being corroded by various corrosive media in sea water for a long term.
Description
Technical field
The present invention relates to the aseptic technic of oceanographic engineering steel pipe, epoxy powder priming paint that particularly a kind of deep-sea oil transportation outer wall of steel pipe protective system is used and preparation method thereof.
Background technology
At present, Marine oil and gas resource exploitation usually adopts the mode such as large ship and pipeline to transport, and wherein submerged pipeline transport has the outstanding advantage that safety performance is high and cost is low, adopt by most countries.Although pipeline transportation has many advantages, at high density ionogen, high pressure low temperature and have the seabed of complex ecosystem, sea-bottom oil-gas transport pipeline fortune is faced with worse corrosion and applied environment.Therefore, study the coating of reply seawater stress corrosion and scratch-resistant wound of wearing, most important to the work-ing life and raising security extending pipeline.
3PP/3PE pipeline anticorrosion coating is universally acknowledged most advanced, the most effective pipeline corrosion protection scheme, and its protection effect more than 50 years and economic construction price are also can the major reason of spread.It is made up of the outer 3 kinds of materials of sintered powder epoxy bottom, sizing agent middle layer and polyethylene/polypropylene.Wherein, fusion bonded epoxy coating is considered to the best coating of general pipeline corrosion protection, and the feature such as epoxide powder coating has resource-saving, low stain, effect is good, application is practical, utilization ratio is high and market scope is wide, present wide application prospect.
But, because marine oil and gas transportation environment is severe, the cryogenic mechanics performance of common ring oxygen coating priming paint is poor, easily scratch under external force, the phenomenon such as wearing and tearing, and it is poor to the sticking power of steel pipe, the easy phenomenon occurring be full of cracks, peel off, has had a strong impact on its work-ing life in seabed and security.Therefore, be necessary that the mechanical property for epoxy powder priming paint and the adhesion property to metallic matrix carry out research and improve.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the epoxy powder priming paint that a kind of deep-sea oil transportation outer wall of steel pipe protective system is used be provided, with improve epoxy powder priming paint resistance to corrosion, to the adhesive rate of steel pipe and fraction of coverage and mechanical property.
For achieving the above object, the present invention is by the following technical solutions:
The epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, its formula rate is as follows by mass parts:
E-12 epoxy resin 40-50 part, novolac epoxy resin 10-25 part, filler 25-45 part, solidifying agent 9-15 part, oxidation inhibitor 0.1-1 part, coupling agent 0.2-1 part, benzoate 0.9-1.8 part, flow agent 0.3-1 part, Graphene 1-3 part, polyvinyl butyral acetal 1-2 part, modified Teflon wax micro mist 3-5 part, rare earth chloride 0.2-0.4 part, pigment 1-3 part.
Described filler is made up of the raw material of following weight parts:
Process white 25-40 part, Rutile type Titanium Dioxide 6-10 part, active micro silicon powder 5-9 part, mica powder 3-6 part, aluminium triphosphate 1.5-4 part, gas-phase silica 0.2-1 part.
The fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 400 order-800 orders, and fineness is preferably 800 orders.
Described solidifying agent is one or both combinations in pyromellitic dianhydride, Benzophenone acid dianhydride, trimellitic anhydride imidazate.
Described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:1-1:3 form.
Described coupling agent is aminopropyl triethoxysilane.
Described benzoate is one or both combinations in ammonium benzoate, Sodium Benzoate.
Described flow agent is the one in fluorin modified crylic acid flow agent, phosphate modified vinylformic acid flow agent.
Present invention also offers the preparation method of above-mentioned deep-sea oil transportation outer wall of steel pipe protective system epoxy powder priming paint used, its technical scheme is as follows: comprise the following steps:
A. take starting material by recipe ratio, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
Advantage of the present invention is:
(1) Graphene has excellent snappiness, Graphene add wear resistance, resistance to pressure and the bending resistance that can improve epoxy powder priming paint preferably, and the two-dimensional network structure of Graphene can make epoxy powder priming paint have better impelling strength, particularly low-temperature impact toughness.
(2) polyvinyl butyral acetal demonstrates good adhesivity for steel, iron, aluminium and other metals, itself and resol with the use of, can prevent and become rusty in metallic surface expansion, obtain the epoxy powder priming paint that water tolerance and adhesivity are excellent, time limit of service is longer.
(3) modified Teflon wax micro mist adds as air release agent, make the coating that obtains smooth bright and clean, without defects such as obvious shrinkage cavity and bubbles, substantially increase the antiseptic property of coating, and improve the scratch resistance of epoxy powder priming paint, crocking resistance, provide the slickness of level and smooth feel and title, hydrophobicity and closure.
(4) rare earth chloride add the bonding force that can improve between powder coating and steel substrate, effectively improve the sea water corrosion resistant of powder coating.
In sum; epoxy powder priming paint of the present invention has excellent wear resistance, resistance to pressure, bending resistance, impact resistance; and for the sticking power of steel pipe and fraction of coverage outstanding, steel pipe can be protected long-term effectively not to be a kind of epoxy powder priming paint of high comprehensive performance by the erosion of corrosive medium all kinds of in seawater.
Embodiment
Further specific descriptions will be done by specific embodiment to the present invention below, but can not be interpreted as it is limiting the scope of the present invention.
Embodiment 1
The epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, is made up of the raw material of following masses part:
E-12 epoxy resin 40 parts, novolac epoxy resin 10 parts, filler 25 parts, 9 parts, solidifying agent, 0.1 part, oxidation inhibitor, coupling agent 0.2 part, benzoate 0.9 part, flow agent 0.3 part, Graphene 1 part, polyvinyl butyral acetal 1 part, modified Teflon wax micro mist 3 parts, rare earth chloride 0.2 part, pigment 1 part.
Described filler is made up of the raw material of following weight parts:
Process white 25 parts, Rutile type Titanium Dioxide 6 parts, active micro silicon powder 5 parts, mica powder 3 parts, aluminium triphosphate 1.5 parts, gas-phase silica 0.2 part.
The fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 400 orders.
Described solidifying agent is pyromellitic dianhydride.
Described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:1 form.
Described coupling agent is aminopropyl triethoxysilane; Described benzoate is Sodium Benzoate.
Described flow agent is fluorin modified crylic acid flow agent.
A preparation method for the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, comprises the following steps:
A. take starting material by recipe ratio, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
Embodiment 2
The epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, is made up of the raw material of following masses part:
E-12 epoxy resin 45 parts, novolac epoxy resin 15 parts, filler 35 parts, 10 parts, solidifying agent, 1 part, oxidation inhibitor, coupling agent 0.5 part, benzoate 0.9 part, flow agent 0.5 part, Graphene 2 parts, polyvinyl butyral acetal 1 part, modified Teflon wax micro mist 4 parts, rare earth chloride 0.3 part, pigment 1 part.
Described filler is made up of the raw material of following weight parts:
Process white 30 parts, Rutile type Titanium Dioxide 8 parts, active micro silicon powder 7 parts, mica powder 4 parts, aluminium triphosphate 2.5 parts, gas-phase silica 0.5 part.
The fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 400 orders.
Described solidifying agent is Benzophenone acid dianhydride.
Described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:1 form.
Described coupling agent is aminopropyl triethoxysilane; Described benzoate is ammonium benzoate, Sodium Benzoate two kinds combination.
Described flow agent is fluorin modified crylic acid flow agent.
A preparation method for the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, comprises the following steps:
A. take starting material by recipe ratio, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
Embodiment 3
The epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, is made up of the raw material of following masses part:
E-12 epoxy resin 45 parts, novolac epoxy resin 20 parts, filler 40 parts, 12 parts, solidifying agent, 0.5 part, oxidation inhibitor, coupling agent 0.7 part, benzoate 1.4 parts, flow agent 0.8 part, Graphene 2 parts, polyvinyl butyral acetal 2 parts, modified Teflon wax micro mist 4 parts, rare earth chloride 0.4 part, pigment 2 parts.
Described filler is made up of the raw material of following weight parts:
Process white 35 parts, Rutile type Titanium Dioxide 10 parts, active micro silicon powder 7 parts, mica powder 5 parts, aluminium triphosphate 3 parts, gas-phase silica 1 part.
The fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 800 orders.
Described solidifying agent is pyromellitic dianhydride, Benzophenone acid dianhydride two kinds combination.
Described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:2 form.
Described coupling agent is aminopropyl triethoxysilane; Described benzoate is ammonium benzoate.
Described flow agent is phosphate modified vinylformic acid flow agent.
A preparation method for the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, comprises the following steps:
A. take starting material by recipe ratio, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
Embodiment 4
The epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, is made up of the raw material of following masses part:
E-12 epoxy resin 50 parts, novolac epoxy resin 25 parts, filler 45 parts, 15 parts, solidifying agent, 0.5 part, oxidation inhibitor, coupling agent 1 part, benzoate 1.8 parts, flow agent 1 part, Graphene 3 parts, polyvinyl butyral acetal 2 parts, modified Teflon wax micro mist 5 parts, rare earth chloride 0.4 part, pigment 3 parts.
Described filler is made up of the raw material of following weight parts:
Process white 40 parts, Rutile type Titanium Dioxide 10 parts, active micro silicon powder 9 parts, mica powder 6 parts, aluminium triphosphate 4 parts, gas-phase silica 1 part.
The fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 800 orders.
Described solidifying agent is trimellitic anhydride imidazate.
Described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:3 form.
Described coupling agent is aminopropyl triethoxysilane; Described benzoate is ammonium benzoate.
Described flow agent is phosphate modified vinylformic acid flow agent.
A preparation method for the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, comprises the following steps:
A. take starting material by recipe ratio, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
As shown in table 1, table 1 is performance and the test result of above-described embodiment mesopelagic oil transportation outer wall of steel pipe protective system epoxy powder priming paint used;
Table 1
The properties of the epoxy powder priming paint used for deep-sea oil transportation outer wall of steel pipe protective system prepared in embodiment all conforms with the regulations standard.
Claims (10)
1. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system is used, is characterized in that: its formula rate is as follows by mass parts:
E-12 epoxy resin 40-50 part, novolac epoxy resin 10-25 part, filler 25-45 part, solidifying agent 9-15 part, oxidation inhibitor 0.1-1 part, coupling agent 0.2-1 part, benzoate 0.9-1.8 part, flow agent 0.3-1 part, Graphene 1-3 part, polyvinyl butyral acetal 1-2 part, modified Teflon wax micro mist 3-5 part, rare earth chloride 0.2-0.4 part, pigment 1-3 part.
2. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described filler is made up of the raw material of following weight parts:
Process white 25-40 part, Rutile type Titanium Dioxide 6-10 part, active micro silicon powder 5-9 part, mica powder 3-6 part, aluminium triphosphate 1.5-4 part, gas-phase silica 0.2-1 part.
3. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 2 is used, is characterized in that: the fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is 400 order-800 orders.
4. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 2 is used, is characterized in that: the fineness of the process white in described filler, Rutile type Titanium Dioxide, active micro silicon powder, mica powder is preferably 800 orders.
5. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described solidifying agent is one or both combinations in pyromellitic dianhydride, Benzophenone acid dianhydride, trimellitic anhydride imidazate.
6. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described oxidation inhibitor be primary antioxidant 1010 with aid anti-oxidants ethyl ester in mass ratio 1:1-1:3 form.
7. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described coupling agent is aminopropyl triethoxysilane.
8. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described benzoate is one or both combinations in ammonium benzoate, Sodium Benzoate.
9. the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: described flow agent is the one in fluorin modified crylic acid flow agent, phosphate modified vinylformic acid flow agent.
10. the preparation method of the epoxy powder priming paint that deep-sea oil transportation outer wall of steel pipe protective system as claimed in claim 1 is used, is characterized in that: comprise the following steps:
A. take starting material by recipe ratio according to claim 1, add in high-speed mixer, under the rotating speed of 500-700 rev/min, be uniformly mixed;
B. step a gained mixture is added forcing machine and carry out mixing plasticizing, melt extrude, feeding section temperature is 80-93 DEG C, melt zone temperature is 95-110 DEG C, and mixing section temperature is 112-120 DEG C, and the temperature of discharging section is 100-110 DEG C; Material average retention time is no more than 60 seconds;
C. by step b gained material through tabletting machine, control thickness is 1-3mm, crushing and classification in broken feeding pulverizing mill after cooling, screened out crossing fine powder by cyclonic separator, namely described epoxy powder priming paint is obtained, Task-size Controlling is 150 μm of oversize powder≤3.5%, 250 μm of oversize powder≤0.3%.
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| CN201410647242.XA CN104530919B (en) | 2014-11-14 | 2014-11-14 | A kind of epoxy powder priming paint used by deep-sea oil transportation outer wall of steel pipe anticorrosive paint and preparation method thereof |
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| CN201410647242.XA CN104530919B (en) | 2014-11-14 | 2014-11-14 | A kind of epoxy powder priming paint used by deep-sea oil transportation outer wall of steel pipe anticorrosive paint and preparation method thereof |
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