CN110183958A - A kind of long-acting type metal base special-purpose anti-flaming type powdery paints and its application method - Google Patents
A kind of long-acting type metal base special-purpose anti-flaming type powdery paints and its application method Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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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
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
- C09D177/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
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- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
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Abstract
The invention discloses a kind of long-acting type metal base special-purpose anti-flaming type powdery paints and its application methods, belong to metal anti-corrosive paint technical field.The metal base special-purpose anti-flaming type powdery paints that the present invention develops is made of methylol nylon, dehydrated alcohol, novolac epoxy resin, nano aluminium oxide, expansion type flame retardant, erucyl amide, anionic polyacrylamide, coupling agent, pigment and plasticizer；In process for preparation, first methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment are added in reaction kettle, cooling after heating stirring reaction, filtering washs and dry, obtains compound coating powder；After gained compound coating powder, novolac epoxy resin, expansion type flame retardant, erucyl amide, anionic polyacrylamide, coupling agent are mixed, high speed shear dispersion, discharging is packed to get long-acting type metal base special-purpose anti-flaming type powdery paints.Products obtained therefrom of the present invention has excellent flame retardant property and long-term effect.
Description
Technical field
The invention discloses a kind of long-acting type metal base special-purpose anti-flaming type powdery paints and its application methods, belong to metal
Anticorrosive paint technology field.
Background technique
Anti-flaming dope is that most widely used, adaptability is most strong in modern project, construction material the most convenient of constructing, and is being ensured
Huge effect has been played in terms of building safety.With the raising of people's life taste, people are to wooden structures, steel construction etc.
Construction material is more favored.And on the one hand anti-flaming dope has covering with paint beauty function to above-mentioned material, it is on the other hand fiery when occurring
Calamity or when by high temperature action, anti-flaming dope has good protective effect to timber, steel construction, is good anti-flaming thermal-insulation building
Material.Aqueous polyurethane coating is that have good using aqueous polyurethane resin as base-material and with a kind of coating of water level decentralized medium
Good storage stability, coating machinery performance, water resistance, resistance to dissolubility and ageing-resistant performance, and with traditional poly- ammonia of solvent type
The similar performance of ester paint is an important development direction of aqueous polyurethane coating.However, its flame retardant effect is also unknown
Aobvious, the report for improving the flame retardant property of aqueous polyurethane coating about research is not much.
Coating, which refers to be attached on a certain basis material, plays certain special role, and has certain combine by force with basis material
The layer material of degree.It can overcome certain defect of basis material, improve its surface characteristic, as optical characteristics, electrology characteristic,
Resistant to corrosion and burn into wear resistance and raising mechanical strength etc., it belongs to a kind of film for having supporter.Currently, antibiotic plastic,
The anti-biotic materials such as anti-bacterial fibre, anti-bacteria ceramic, antibacterial steel and antimicrobial coating have been applied to every field.
Industrially, it generallys use plating mode and plates one layer of other metal or alloy in matrix surface, to reach or improve
To parent metal appearance and mechanical performance.But traditional electroplating technology is sufficiently complex, and can generate harmful substance, technique at
This height and dangerous environmental protection.
Powdery paints is saved with its resource, the energy saves, is nuisanceless, labor productivity is high and special convenient for carrying out automatic coating etc.
Point becomes and develops swift and violent coating new varieties.In terms of kind, there is thermosetting property and gather cruel powdery paints, started thermoplasticity
Powdery paints in terms of coating, is set to the transformation of thermosetting powder coating from thick coating to the recycling of shallow layer transformation powdery paints
Standby also gradually to tend to be perfect, recovery efficiency significantly improves.Powdery paints various types, formula is different, but it is formed usually substantially
Including resin, curing agent, pigment, filler and various auxiliary agents, a typical powder coating formulation should include following component:
(1) base-material (including resin and curing agent)；
(2) pigments and fillers；
(3) levelling agent and other auxiliary agents.In general, resin used is that the height with higher relative mass and lower degree of functionality is poly-
Object, they can be thermoplasticity or thermosetting property；Curing agent be have lower molecular mass and higher functionality oligomer or
Small molecule compound；Powdery paints pigments and fillers and solvent based coating pigments and fillers used in are essentially identical；Auxiliary agent includes solid
Change promotor, levelling agent, optical brightener, delustering agent, fine arts type auxiliary agent, edges cover agent, anticaking agent, light stabilizer etc..Its
Middle resin is the most important component of coating, it decides the type and characteristic of coating, and thermoplasticity can be divided by dividing from nature
Resin and thermosetting resin, corresponding coating can be divided into thermoplastic powder coating and thermosetting powder coating.Gold traditional at present
The lasting effect of the protective performance and flame retardant property that belong to powdery paints used in substrate is bad, is easy to happen in the long-term use anti-
Shield and fire-retardant failure, therefore also need to study it.
Summary of the invention
The present invention solves the technical problem of: for the protective performance and resistance of powdery paints used in conventional metals substrate
The drawbacks of lasting effect for firing performance is bad, is easy to happen protection and fire-retardant failure in the long-term use, provides a kind of length
Acting type metal base special-purpose anti-flaming type powdery paints and its application method.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of long-acting type metal base special-purpose anti-flaming type powdery paints, the raw material composition including following parts by weight:
0~120 part of methylol nylon 8
80~100 parts of dehydrated alcohol
10~12 parts of novolac epoxy resin
10~20 parts of nano aluminium oxide
8~10 parts of expansion type flame retardant
4~8 parts of erucyl amide
3~5 parts of anionic polyacrylamide
4~6 parts of coupling agent
8~10 parts of pigment
2~4 parts of plasticizer
The process for preparation of the long-acting type metal base special-purpose anti-flaming type powdery paints are as follows:
(1) each component is weighed by raw material composition；
(2) first methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment are added in reaction kettle, it is cold after heating stirring reaction
But, it filters, washing and drying obtain compound coating powder；
(3) by gained compound coating powder, novolac epoxy resin, expansion type flame retardant, erucyl amide, anion pp acyl
After amine, coupling agent mixing, high speed shear dispersion, discharging is packed to get long-acting type metal base special-purpose anti-flaming type powdery paints.
The preparation process of the methylol nylon are as follows: according to parts by weight, successively take 30~40 parts of nylon, 50~60 parts of first
First formic acid, water and nylon are added in reactor for acid, 15~20 parts of water, 25~30 parts of formaldehyde, and heating stirring is completely molten to nylon
Xie Hou adds formaldehyde, cooling after continuation heating stirring reaction, neutralizes, filtering, washs and dry, obtain methylol nylon.
The expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is the synthesis of charcoal source
Expansion type flame retardant.
The anionic polyacrylamide is the anionic polyacrylamide that molecular weight is 600~15,000,000.
The coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560, appointing in Silane coupling reagent KH-570
It anticipates one kind.
The pigment is titanium dioxide, iron oxide red, any one in carbon black.
The plasticizer is di-n-octyl phthalate, in dibutyl phthalate, repefral
Any one.
Concrete application method are as follows: by product long-acting type metal base special-purpose anti-flaming type powder coating electrostatic spraying in cleaning and
Metallic substrate surface after grinding process, then using laser sintered, it is cooling, long-acting type metal base special-purpose anti-flaming type can be completed
The application of powdery paints；It is described laser sintered are as follows: after to be coated, the steel after coating is moved into carbon dioxide laser sintering
Device is 10~12W in laser power, and sweep speed is 2200~2500mm/s, under the conditions of preheating temperature is 150~155 DEG C, into
Row is laser sintered.
The beneficial effects of the present invention are:
(1) technical solution of the present invention uses methylol nylon for main matrix resin, using its provide it is good protection and it is wear-resisting
Performance, the peeling when effectively avoiding paint film from scratching, rub after application, in addition, being changed by carrying out methylol to nylon
Property, keep the methylol in its molecular structure and the methylol on novolac epoxy resin phenol ring structure or active hydrogen solid in products application
It is chemically reacted during changing, chemical bonding is formed, to make thermoplastic nylon resin and heat cured epoxy novolac tree
Securely chemical bonding is formed between rouge, improves the cohesive strength between two kinds of different resins, keeps product viscous to surface of workpiece
Attached performance is further promoted, and product is avoided to peel off in use, effectively improves the holding effect of product protective action
Property；Furthermore the application is by being aided with erucyl amide, and in product mixing process, erucyl amide, which plays good lubricant effect, to be made
Each component uniformly mixes, and in product spraying solidification process, erucyl amide can migrate to surface of the paint film, and can make interiors of products
Mobility between macromolecular chain is reinforced, and improves surface of the paint film energy, makes it in metal surface good adhesion；
(2) technical solution of the present invention is sintered in thermal histories, in fire retardant using expansion type flame retardant as fire retardant in product
Part acid source can release free acid, the solidification on the one hand generation of free acid can be used as thermosetting resin solidification needed for after heated
On the other hand agent can occur microcorrosion effect to surface of workpiece and be conducive to improve to improve workpiece surface roughness
Paint film further promotes paint film in the adherency validity period of surface of workpiece, to have to the surface adhesion ability of metal works
Effect improves the protection and fire-retardant long-term effect of product；
(3) technical solution of the present invention coats inorganic nano aluminium oxide and powder pigment using modification of nylon 6, reduces it
Surface can, both effectively prevent reuniting in mixing process, make its in paint film can fine dispersion, while cooperating laser
Sintering process makes inorganic particle and organic resin form organic whole, improves interface bond strength between the two, effectively improve
Hardness of paint film, so that product protective performance lasting effect be enable to be promoted；In addition, the presence of aluminium oxide can equally be sent out at high temperature
Good isolation and flame-retardant smoke inhibition effect are waved, and has benefited from the fine dispersion of aluminium oxide and the stable bond with resin matrix,
Effectively improve fire-retardant lasting effect.
Specific embodiment
According to parts by weight, successively take 30~40 parts of nylon, 12,50~60 parts of mass fractions be 85% formic acid, 15~20
Part water, 25~30 parts of formaldehyde first formic acid, water and nylon 12 are added in polytetrafluoroethyllining lining stainless steel cauldron, Yu Wendu
It is 75~80 DEG C, under the conditions of revolving speed is 600~800r/min, heating stirring is mixed to nylon 12 and is completely dissolved, then to reaction kettle
Middle addition formaldehyde, and reaction kettle is closed, and continuing at temperature is 95~100 DEG C, and speed of agitator is 400~600r/min condition
Under, heating stirring reacts 2~4h, and to the end of reacting, reaction kettle is opened, stops heating, is cooled to room temperature under stirring, then
Material in reactor pH is adjusted to neutrality, filtering obtains filter cake, and washed filter cake 4~6 times with dehydrated alcohol, then will be after washing
Filter cake is transferred in vacuum oven, is 65~75 DEG C in temperature, under the conditions of pressure is 60~80Pa, is dried under vacuum to constant weight, obtains
Methylol nylon；According to parts by weight, 80~120 parts of methylol nylon are successively taken, 80~100 parts of dehydrated alcohols, 10~12 parts
Bisphenol A-type novolac epoxy resin, 10~20 parts of nano aluminium oxides, 8~10 parts of expansion type flame retardants, 4~8 parts of erucyl amides, 3~
5 parts of anionic polyacrylamide, 4~6 parts of coupling agents, 8~10 parts of pigment, 2~4 parts of plasticizer, first by methylol nylon, anhydrous
Ethyl alcohol, nano aluminium oxide and pigment are added in reaction kettle, and reaction kettle is closed, in temperature be 155~160 DEG C, revolving speed 600
Under the conditions of~800r/min, after heating stirring reacts 2~3h, stops heating, be cooled to room temperature under stirring, open reaction
Kettle, filtering, obtains filter residue, and be washed with deionized filter residue 3~5 times, then by the filter residue vacuum freeze drying after washing, obtain compound
Coated powder；By gained compound coating powder, novolac epoxy resin, expansion type flame retardant, erucyl amide, anion pp acyl
Amine, coupling agent pour into batch mixer, under the conditions of revolving speed is 2000~3000r/min, after high speed shear disperses 45~60min,
Discharging is packed to get long-acting type metal base special-purpose anti-flaming type powdery paints；Steel surface acetone is cleaned by ultrasonic oil removing
Afterwards, it is polished with abrasive paper for metallograph, removes surface oxide layer, then gained long-acting type metal base special-purpose anti-flaming type powdery paints is used
Electrostatic painting process is coated on steel surface, and control coating thickness is 125~150 μm, after to be coated, by the steel after coating
Iron moves into carbon dioxide laser and is sintered device, is 10~12W in laser power, sweep speed is 2200~2500mm/s, preheating temperature
Under the conditions of degree is 150~155 DEG C, progress is laser sintered, then through cooling, long-acting type metal base special-purpose anti-flaming type powder can be completed
The application of last coating.The expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is charcoal source
The expansion type flame retardant of synthesis.The anionic polyacrylamide is the anion pp acyl that molecular weight is 600~15,000,000
Amine.The coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560, any one in Silane coupling reagent KH-570
Kind.The pigment is titanium dioxide, iron oxide red, any one in carbon black.The plasticizer is di-n-octyl phthalate,
Any one in dibutyl phthalate, repefral.
Example 1
According to parts by weight, successively taking 40 parts of nylon, 12,60 parts of mass fractions is 85% formic acid, 20 parts of water, 30 parts of formaldehyde, elder generation
By formic acid, water and nylon 12 be added polytetrafluoroethyllining lining stainless steel cauldron in, in temperature be 80 DEG C, revolving speed 800r/min
Under the conditions of, heating stirring is mixed to nylon 12 and is completely dissolved, then formaldehyde is added into reaction kettle, and reaction kettle is closed, is continued
It is 100 DEG C in temperature, under the conditions of speed of agitator is 600r/min, heating stirring reacts 4h, to the end of reacting, reaction kettle is opened,
Stop heating, be cooled to room temperature under stirring, then adjust material in reactor pH to neutrality, filtering obtains filter cake, and use nothing
Water-ethanol washs filter cake 6 times, then the filter cake after washing is transferred in vacuum oven, is 75 DEG C in temperature, pressure is 80Pa item
Under part, it is dried under vacuum to constant weight, obtains methylol nylon；According to parts by weight, 120 parts of methylol nylon are successively taken, 100 parts anhydrous
Ethyl alcohol, 12 parts of bisphenol A-type novolac epoxy resins, 20 parts of nano aluminium oxides, 10 parts of expansion type flame retardants, 8 parts of erucyl amides, 5 parts
Anionic polyacrylamide, 6 parts of coupling agents, 10 parts of pigment, 4 parts of plasticizer, first by methylol nylon, dehydrated alcohol, nano oxygen
Change aluminium and pigment is added in reaction kettle, and reaction kettle is closed, is 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, heats
After being stirred to react 3h, stop heating, be cooled to room temperature under stirring, open reaction kettle, filtering, obtain filter residue, and spend from
Sub- water washing filter residue 5 times, then by the filter residue vacuum freeze drying after washing, obtain compound coating powder；By gained compound coating powder
Body, novolac epoxy resin, expansion type flame retardant, erucyl amide, anionic polyacrylamide, coupling agent pour into batch mixer, in
Under the conditions of revolving speed is 3000r/min, after high speed shear disperses 60min, discharging is packed to get the dedicated resistance of long-acting type metal base
Combustion type powdery paints；It after steel surface is cleaned by ultrasonic oil removing with acetone, is polished with abrasive paper for metallograph, removes surface oxide layer, then
Gained long-acting type metal base special-purpose anti-flaming type powdery paints is coated on steel surface, control coating using electrostatic painting process
With a thickness of 150 μm, after to be coated, the steel after coating is moved into carbon dioxide laser and is sintered device, is in laser power
12W, sweep speed 2500mm/s, under the conditions of preheating temperature is 155 DEG C, progress is laser sintered, then through cooling, length can be completed
The application of acting type metal base special-purpose anti-flaming type powdery paints.The expansion type flame retardant is the trimerization using ammonium polyphosphate as acid source
Cyanamide is gas source, and pentaerythrite is the expansion type flame retardant of charcoal source synthesis.The anionic polyacrylamide is that molecular weight is
15000000 anionic polyacrylamide.The coupling agent is silane resin acceptor kh-550.The pigment is titanium dioxide.The increasing
Modeling agent is di-n-octyl phthalate.
Example 2
According to parts by weight, successively taking 40 parts of nylon, 12,60 parts of mass fractions is 85% formic acid, 20 parts of water, 30 parts of formaldehyde, elder generation
By formic acid, water and nylon 12 be added polytetrafluoroethyllining lining stainless steel cauldron in, in temperature be 80 DEG C, revolving speed 800r/min
Under the conditions of, heating stirring is mixed to nylon 12 and is completely dissolved, then formaldehyde is added into reaction kettle, and reaction kettle is closed, is continued
It is 100 DEG C in temperature, under the conditions of speed of agitator is 600r/min, heating stirring reacts 4h, to the end of reacting, reaction kettle is opened,
Stop heating, be cooled to room temperature under stirring, then adjust material in reactor pH to neutrality, filtering obtains filter cake, and use nothing
Water-ethanol washs filter cake 6 times, then the filter cake after washing is transferred in vacuum oven, is 75 DEG C in temperature, pressure is 80Pa item
Under part, it is dried under vacuum to constant weight, obtains methylol nylon；According to parts by weight, 120 parts of methylol nylon are successively taken, 100 parts anhydrous
Ethyl alcohol, 20 parts of nano aluminium oxides, 10 parts of expansion type flame retardants, 8 parts of erucyl amides, 5 parts of anionic polyacrylamide, 6 parts of couplings
First methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment are added in reaction kettle for agent, 10 parts of pigment, 4 parts of plasticizer, and
Reaction kettle is closed, it is 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, after heating stirring reacts 3h, stops heating,
It is cooled to room temperature under stirring, opens reaction kettle, filtering obtains filter residue, and be washed with deionized filter residue 5 times, then will washing
Filter residue vacuum freeze drying afterwards, obtains compound coating powder；By gained compound coating powder, expansion type flame retardant, erucyl amide,
Anionic polyacrylamide, coupling agent pour into batch mixer, and under the conditions of revolving speed is 3000r/min, high speed shear disperses 60min
Afterwards, it discharges, packs to get long-acting type metal base special-purpose anti-flaming type powdery paints；The ultrasonic cleaning of steel surface acetone is removed
It after oil, is polished with abrasive paper for metallograph, removes surface oxide layer, then gained long-acting type metal base special-purpose anti-flaming type powdery paints is adopted
Technique is electrostatically sprayed coated on steel surface, control coating thickness is 150 μm, after to be coated, by the steel after coating
It moves into carbon dioxide laser and is sintered device, be 12W in laser power, sweep speed 2500mm/s, preheating temperature is 155 DEG C of conditions
Under, progress is laser sintered, then through cooling, the application of long-acting type metal base special-purpose anti-flaming type powdery paints can be completed.It is described
Expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is the expansion type flame-retarding of charcoal source synthesis
Agent.The anionic polyacrylamide is the anionic polyacrylamide that molecular weight is 15,000,000.The coupling agent is that silane is even
Join agent KH-550.The pigment is titanium dioxide.The plasticizer is di-n-octyl phthalate.
Example 3
According to parts by weight, successively taking 40 parts of nylon, 12,60 parts of mass fractions is 85% formic acid, 20 parts of water, 30 parts of formaldehyde, elder generation
By formic acid, water and nylon 12 be added polytetrafluoroethyllining lining stainless steel cauldron in, in temperature be 80 DEG C, revolving speed 800r/min
Under the conditions of, heating stirring is mixed to nylon 12 and is completely dissolved, then formaldehyde is added into reaction kettle, and reaction kettle is closed, is continued
It is 100 DEG C in temperature, under the conditions of speed of agitator is 600r/min, heating stirring reacts 4h, to the end of reacting, reaction kettle is opened,
Stop heating, be cooled to room temperature under stirring, then adjust material in reactor pH to neutrality, filtering obtains filter cake, and use nothing
Water-ethanol washs filter cake 6 times, then the filter cake after washing is transferred in vacuum oven, is 75 DEG C in temperature, pressure is 80Pa item
Under part, it is dried under vacuum to constant weight, obtains methylol nylon；According to parts by weight, 120 parts of methylol nylon are successively taken, 100 parts anhydrous
Ethyl alcohol, 12 parts of bisphenol A-type novolac epoxy resins, 20 parts of nano aluminium oxides, 10 parts of deca-BDEs, 8 parts of erucyl amides, 5 parts of yin
Cationic polyacrylamide, 6 parts of coupling agents, 10 parts of pigment, 4 parts of plasticizer, first by methylol nylon, dehydrated alcohol, nano oxidized
Aluminium and pigment are added in reaction kettle, and reaction kettle is closed, are 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, heating is stirred
After mixing reaction 3h, stop heating, be cooled to room temperature under stirring, open reaction kettle, filtering obtains filter residue, and use deionization
Water washing filter residue 5 times, then by the filter residue vacuum freeze drying after washing, obtain compound coating powder；By gained compound coating powder,
Novolac epoxy resin, deca-BDE, erucyl amide, anionic polyacrylamide, coupling agent pour into batch mixer, are in revolving speed
Under the conditions of 3000r/min, after high speed shear disperses 60min, discharging is packed to get long-acting type metal base special-purpose anti-flaming type powder
Last coating；It after steel surface is cleaned by ultrasonic oil removing with acetone, is polished with abrasive paper for metallograph, removes surface oxide layer, then by gained
Long-acting type metal base special-purpose anti-flaming type powdery paints is coated on steel surface using electrostatic painting process, and control coating thickness is
150 μm, after to be coated, the steel after coating is moved into carbon dioxide laser and is sintered device, is 12W in laser power, scan
Rate is 2500mm/s, and under the conditions of preheating temperature is 155 DEG C, progress is laser sintered, then through cooling, long-acting type metal can be completed
The application of substrate special-purpose anti-flaming type powdery paints.The anionic polyacrylamide is the anion poly- third that molecular weight is 15,000,000
Acrylamide.The coupling agent is silane resin acceptor kh-550.The pigment is titanium dioxide.The plasticizer is phthalic acid two
N-octyl.
Example 4
According to parts by weight, successively taking 40 parts of nylon, 12,60 parts of mass fractions is 85% formic acid, 20 parts of water, 30 parts of formaldehyde, elder generation
By formic acid, water and nylon 12 be added polytetrafluoroethyllining lining stainless steel cauldron in, in temperature be 80 DEG C, revolving speed 800r/min
Under the conditions of, heating stirring is mixed to nylon 12 and is completely dissolved, then formaldehyde is added into reaction kettle, and reaction kettle is closed, is continued
It is 100 DEG C in temperature, under the conditions of speed of agitator is 600r/min, heating stirring reacts 4h, to the end of reacting, reaction kettle is opened,
Stop heating, be cooled to room temperature under stirring, then adjust material in reactor pH to neutrality, filtering obtains filter cake, and use nothing
Water-ethanol washs filter cake 6 times, then the filter cake after washing is transferred in vacuum oven, is 75 DEG C in temperature, pressure is 80Pa item
Under part, it is dried under vacuum to constant weight, obtains methylol nylon；According to parts by weight, 120 parts of methylol nylon are successively taken, 100 parts anhydrous
Ethyl alcohol, 12 parts of bisphenol A-type novolac epoxy resins, 20 parts of nano aluminium oxides, 10 parts of expansion type flame retardants, 5 parts of anion pps
Amide, 6 parts of coupling agents, 10 parts of pigment, 4 parts of plasticizer first add methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment
Enter in reaction kettle, and reaction kettle is closed, is 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, heating stirring reacts 3h
Afterwards, stop heating, be cooled to room temperature under stirring, open reaction kettle, filtering obtains filter residue, and filter is washed with deionized
Slag 5 times, then by the filter residue vacuum freeze drying after washing, obtain compound coating powder；By gained compound coating powder, epoxy novolac
Resin, expansion type flame retardant, anionic polyacrylamide, coupling agent pour into batch mixer, in revolving speed be 3000r/min condition
Under, after high speed shear disperses 60min, discharging is packed to get long-acting type metal base special-purpose anti-flaming type powdery paints；By steel
It after surface is cleaned by ultrasonic oil removing with acetone, is polished with abrasive paper for metallograph, removes surface oxide layer, then by gained long-acting type metal base
Special-purpose anti-flaming type powdery paints is coated on steel surface using electrostatic painting process, and control coating thickness is 150 μm, knot to be coated
Shu Hou, by after coating steel move into carbon dioxide laser be sintered device, in laser power be 12W, sweep speed 2500mm/s,
Under the conditions of preheating temperature is 155 DEG C, progress is laser sintered, then through cooling, long-acting type metal base special-purpose anti-flaming type can be completed
The application of powdery paints.The expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is charcoal
The expansion type flame retardant of source synthesis.The anionic polyacrylamide is the anionic polyacrylamide that molecular weight is 15,000,000.
The coupling agent is silane resin acceptor kh-550.The pigment is titanium dioxide.The plasticizer is di-n-octyl phthalate.
Example 5
According to parts by weight, successively taking 40 parts of nylon, 12,60 parts of mass fractions is 85% formic acid, 20 parts of water, 30 parts of formaldehyde, elder generation
By formic acid, water and nylon 12 be added polytetrafluoroethyllining lining stainless steel cauldron in, in temperature be 80 DEG C, revolving speed 800r/min
Under the conditions of, heating stirring is mixed to nylon 12 and is completely dissolved, then formaldehyde is added into reaction kettle, and reaction kettle is closed, is continued
It is 100 DEG C in temperature, under the conditions of speed of agitator is 600r/min, heating stirring reacts 4h, to the end of reacting, reaction kettle is opened,
Stop heating, be cooled to room temperature under stirring, then adjust material in reactor pH to neutrality, filtering obtains filter cake, and use nothing
Water-ethanol washs filter cake 6 times, then the filter cake after washing is transferred in vacuum oven, is 75 DEG C in temperature, pressure is 80Pa item
Under part, it is dried under vacuum to constant weight, obtains methylol nylon；According to parts by weight, 120 parts of methylol nylon are successively taken, 100 parts anhydrous
Ethyl alcohol, 12 parts of bisphenol A-type novolac epoxy resins, 20 parts of nano aluminium oxides, 10 parts of expansion type flame retardants, 8 parts of erucyl amides, 6 parts
First reaction kettle is added in methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment by coupling agent, 10 parts of pigment, 4 parts of plasticizer
In, and reaction kettle is closed, it is 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, after heating stirring reacts 3h, stops adding
Heat is cooled to room temperature under stirring, opens reaction kettle, and filtering obtains filter residue, and be washed with deionized filter residue 5 times, then will
Filter residue vacuum freeze drying after washing, obtains compound coating powder；By gained compound coating powder, novolac epoxy resin, expansion
Type fire retardant, erucyl amide, coupling agent pour into batch mixer, under the conditions of revolving speed is 3000r/min, high speed shear dispersion
After 60min, discharging is packed to get long-acting type metal base special-purpose anti-flaming type powdery paints；Steel surface is clear with acetone ultrasound
It after removing oil, is polished with abrasive paper for metallograph, removes surface oxide layer, then gained long-acting type metal base special-purpose anti-flaming type powder is applied
Material is coated on steel surface using electrostatic painting process, and control coating thickness is 150 μm, after to be coated, after coating
Steel moves into carbon dioxide laser and is sintered device, is 12W in laser power, sweep speed 2500mm/s, preheating temperature is 155 DEG C
Under the conditions of, progress is laser sintered, then through cooling, the application of long-acting type metal base special-purpose anti-flaming type powdery paints can be completed.
The expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is the intumescent of charcoal source synthesis
Fire retardant.The coupling agent is silane resin acceptor kh-550.The pigment is titanium dioxide.The plasticizer is phthalic acid two
N-octyl.
Example 6
According to parts by weight, 120 parts of nylon, 12,100 parts of dehydrated alcohols are successively taken, 12 parts of bisphenol A-type novolac epoxy resins, 20 parts
Nano aluminium oxide, 10 parts of expansion type flame retardants, 8 parts of erucyl amides, 5 parts of anionic polyacrylamide, 6 parts of coupling agents, 10 parts of face
First nylon 12, dehydrated alcohol, nano aluminium oxide and pigment are added in reaction kettle for material, 4 parts of plasticizer, and reaction kettle is closed,
It is 160 DEG C in temperature, under the conditions of revolving speed is 800r/min, after heating stirring reacts 3h, stops heating, it is cooling under stirring
To room temperature, reaction kettle is opened, filtering obtains filter residue, and be washed with deionized filter residue 5 times, then the filter residue vacuum after washing is cold
It is lyophilized dry, obtains compound coating powder；By gained compound coating powder, novolac epoxy resin, expansion type flame retardant, erucyl amide,
Anionic polyacrylamide, coupling agent pour into batch mixer, and under the conditions of revolving speed is 3000r/min, high speed shear disperses 60min
Afterwards, it discharges, packs to get long-acting type metal base special-purpose anti-flaming type powdery paints；The ultrasonic cleaning of steel surface acetone is removed
It after oil, is polished with abrasive paper for metallograph, removes surface oxide layer, then gained long-acting type metal base special-purpose anti-flaming type powdery paints is adopted
Technique is electrostatically sprayed coated on steel surface, control coating thickness is 150 μm, after to be coated, by the steel after coating
It moves into carbon dioxide laser and is sintered device, be 12W in laser power, sweep speed 2500mm/s, preheating temperature is 155 DEG C of conditions
Under, progress is laser sintered, then through cooling, the application of long-acting type metal base special-purpose anti-flaming type powdery paints can be completed.It is described
Expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is the expansion type flame-retarding of charcoal source synthesis
Agent.The anionic polyacrylamide is the anionic polyacrylamide that molecular weight is 15,000,000.The coupling agent is that silane is even
Join agent KH-550.The pigment is titanium dioxide.The plasticizer is di-n-octyl phthalate.
Comparative example: the anti-flaming dope of Hebei Refractory Co., ltd production.
1 to 6 gained powdery paints of example and comparative example product are subjected to performance detection, the specific detection method is as follows:
Above-mentioned anti-flaming dope is applied to metal surface by example the method, detects its limit oxygen index, after 3 months, then
Secondary its limit oxygen index of detection.Specific testing result is as shown in table 1:
Table 1: performance detection table
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example |
| Limit oxygen index | 53 | 37 | 41 | 35 | 39 | 37 | 29 |
| 3 months limit oxygen index | 51 | 32 | 33 | 30 | 34 | 31 | 20 |
By 1 testing result of table it is found that present invention gained long-acting type metal base special-purpose anti-flaming type powdery paints has excellent resistance
Fire performance and long-term effect.
Claims (8)
1. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints, it is characterised in that the raw material group including following parts by weight
At:
0~120 part of methylol nylon 8
80~100 parts of dehydrated alcohol
10~12 parts of novolac epoxy resin
10~20 parts of nano aluminium oxide
8~10 parts of expansion type flame retardant
4~8 parts of erucyl amide
3~5 parts of anionic polyacrylamide
4~6 parts of coupling agent
8~10 parts of pigment
2~4 parts of plasticizer
The process for preparation of the metal base special-purpose anti-flaming type powdery paints are as follows:
(1) each component is weighed by raw material composition；
(2) first methylol nylon, dehydrated alcohol, nano aluminium oxide and pigment are added in reaction kettle, it is cold after heating stirring reaction
But, it filters, washing and drying obtain compound coating powder；
(3) by gained compound coating powder, novolac epoxy resin, expansion type flame retardant, erucyl amide, anion pp acyl
After amine, coupling agent mixing, high speed shear dispersion, discharging is packed to get metal base special-purpose anti-flaming type powdery paints.
2. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
The preparation process of methylol nylon are as follows: according to parts by weight, successively take 30~40 parts of nylon, 50~60 parts of formic acid, 15~20 parts
Formic acid, water and nylon are first added in reactor, after heating stirring is completely dissolved to nylon, add by water, 25~30 parts of formaldehyde
Formaldehyde, it is cooling after continuation heating stirring reaction, it neutralizes, filtering, washs and dry, obtain methylol nylon.
3. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
Expansion type flame retardant is using ammonium polyphosphate as acid source, and melamine is gas source, and pentaerythrite is the expansion type flame-retarding of charcoal source synthesis
Agent.
4. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
Anionic polyacrylamide is the anionic polyacrylamide that molecular weight is 600~15,000,000.
5. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
Coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560, any one in Silane coupling reagent KH-570.
6. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
Pigment is titanium dioxide, iron oxide red, any one in carbon black.
7. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that described
Plasticizer is di-n-octyl phthalate, any one in dibutyl phthalate, repefral.
8. a kind of long-acting type metal base special-purpose anti-flaming type powdery paints according to claim 1, it is characterised in that specific
Application method are as follows: by Metal Substrate of the resultant metal substrate special-purpose anti-flaming type powder coating electrostatic spraying after cleaning and grinding process
Material surface, then using laser sintered, it is cooling, the application of metal base special-purpose anti-flaming type powdery paints can be completed；The laser
Sintering are as follows: after to be coated, by after coating steel move into carbon dioxide laser be sintered device, in laser power be 10~12W,
Sweep speed is that 2200~2500mm/s is carried out laser sintered under the conditions of preheating temperature is 150~155 DEG C.
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