CN109401462A - A kind of aramid fiber modified water-soluble fluorine carbon insulated paint and preparation method thereof - Google Patents

A kind of aramid fiber modified water-soluble fluorine carbon insulated paint and preparation method thereof Download PDF

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CN109401462A
CN109401462A CN201811101796.4A CN201811101796A CN109401462A CN 109401462 A CN109401462 A CN 109401462A CN 201811101796 A CN201811101796 A CN 201811101796A CN 109401462 A CN109401462 A CN 109401462A
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water
component
agent
insulated paint
dispersion
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曾凡辉
周升
贾金荣
姜其斌
裴海帆
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Zhuzhou Times New Material Technology Co Ltd
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Zhuzhou Times New Material Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D127/00Coating 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
    • C09D127/02Coating 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
    • C09D127/12Coating 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
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18Fireproof paints including high temperature resistant paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/70Additives characterised by shape, e.g. fibres, flakes or microspheres
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/80Processes for incorporating ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2265Oxides; Hydroxides of metals of iron
    • C08K2003/2272Ferric oxide (Fe2O3)
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/32Phosphorus-containing compounds
    • C08K2003/321Phosphates
    • C08K2003/328Phosphates of heavy metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16Fibres; Fibrils

Abstract

The invention discloses a kind of aramid fiber modified water-soluble fluorine carbon insulated paint, including component A and B component, component A to be mainly prepared by water-based fluorocarbon resin, aramid fiber, pigment, filler, auxiliary agent and water, and B component is mainly water-based isocyanate curing agent.Aramid fiber: (1) being dispersed in water by preparation method of the invention, obtains the aqueous slurry containing aramid short fiber;(2) pigment, filler and part of auxiliary are mixed and is uniformly dispersed, obtain the aqueous slurry containing face, filler;(3) slurry prepared by step (1) and step (2) is mixed, and water-based fluorocarbon resin and other auxiliary agents is added, be uniformly dispersed, obtain component A;(4) amount prepares water-based isocyanate curing agent as component B.Fluorine carbon insulated paint resistance to chemical corrosion of the invention and salt spray resistance are good, good, excellent with good flame retardant property, electrical insulation properties with good weatherability, heat resistance.

Description

A kind of aramid fiber modified water-soluble fluorine carbon insulated paint and preparation method thereof
Technical field
The invention belongs to water-based insulating paint field more particularly to a kind of aramid fiber modified water-soluble fluorine carbon insulated paint and its systems Preparation Method.
Background technique
Surface insulation paint traditional at present is generally oiliness epoxy resin, organic siliconresin, fluorocarbon resin, alkyd resin There is good electric property Deng, this kind of insulated paint, be widely used in the every field of electric insulation.But traditional oiliness table Contain a large amount of organic solvents in face insulation enamel paint, in coating film forming solidification process, organic solvent is all evaporate into atmosphere, no Only environmental and human health impacts are polluted and endangered, and cause the huge waste of resource.And water-based insulating paint is opposite The comparatively safe environmental protection of oiliness insulated paint.
Chinese patent application CN105348502A, CN104974625A, CN102079939A, in 201610914547.1 A kind of water-based insulating paint is disclosed, however these water paints are with aqueous alkide resin, water-based acrylic resin and aqueous ring Oxygen resin is base-material, and weather resistance, antiseptic property, flame retardant property are poor.
Therefore, study a kind of weather resistance, antiseptic property, excellent fireproof performance water-based insulating paint be to be highly desirable 's.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, provide one Kind aramid fiber modified water-soluble fluorine carbon insulated paint and preparation method thereof.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of aramid fiber modified water-soluble fluorine carbon insulated paint, the fluorine carbon insulated paint be multicomponent insulated paint, including component A and B component, wherein the component A is mainly prepared by the raw material of following parts by weight:
The B component is mainly water-based isocyanate curing agent.
Fluorocarbon resin is commonly called as the king of coating, what mainly this body structure of fluorocarbon resin more superior than other resin properties determined. C-F key in fluorocarbon resin is short, and the electronegativity of F is very high, and the bond energy of C-F key is to be currently known bond energy highest in chemical bond , up to 485KJ/mol is not easy to be destroyed.Selection fluorocarbon resin can guarantee that insulated paint has superiority to prepare insulated paint Energy.
Water-based fluorocarbon resin has the characteristics that molecular bond energy is big, alternating copolymerization symmetry is good, polarity is low, crosslink density is high, For aramid fiber since the amide group in molecular structure is connected with each other with phenyl, macromolecular chain is in flexible structure, hydrogen bond in crystal Effect is strong, has excellent heat resistance and anti-flammability.Using water-based fluorocarbon resin as base-material, the modified insulation of aramid fiber is used Paint has excellent corrosion resistance, weather resistance, flame retardant property and electrical insulation properties.
Above-mentioned fluorine carbon insulated paint, it is preferred that the water-based fluorocarbon resin is copolymerized by chlorotrifluoroethylene and vinyl ethers The fluoro-resin emulsion of the alternating copolymerization structure formed is reacted, hydroxyl value is 70~80mgKOH/g, and acid value is 13~15mgKOH/g, Fluorine content 21~25%.
The water-based fluorocarbon resin that the present invention selects is that have alternating copolymerization structure using the preparation of advanced Phase inversion emulsification technology Fluoro-resin emulsion, which has high crosslink density so that insulation lacquer coat have lower surface can, good electricity Gas insulation performance, weather resistance, corrosion resistance and flame retardant property.
Above-mentioned fluorine carbon insulated paint, it is preferred that the aramid fiber is poly(p-phenylene terephthalamide) chopped strand 1414 or/and poly chopped strand 1313.
Above-mentioned fluorine carbon insulated paint, it is preferred that the water-based isocyanate curing agent is aqueous aliphatic polyisocyante, Solid content is 66%~72%, and isocyanate content is 11.2%~13.2%.
Above-mentioned fluorine carbon insulated paint, it is preferred that the auxiliary agent includes aqueous dispersion, wetting agent, defoaming agent, anti-flash rusting Agent, thickener, levelling agent it is several or a variety of.It is further preferred that the auxiliary agent include aqueous dispersion HY1940, DISUPER S19, wetting agent BYK341, defoaming agent BYK024, BYK020, anti-flash rusting agent, thickener R972, PAMID D760, Levelling agent LT, HYPERLEV F81 it is several or a variety of.
Above-mentioned fluorine carbon insulated paint, it is preferred that the pigment is iron oxide red, pigment scarlet powder, phthalocyanine blue, titanium dioxide, compound One of trbasic zinc phosphate is a variety of;The filler is one of silicon powder, mica powder and talcum powder or a variety of.Present invention selection Pigments and fillers it is non-conductive, do not hydrolyze, and have antirust, weather resistance.
Above-mentioned fluorine carbon insulated paint, it is preferred that in use, the mass ratio of the component A and B component mixing is (6-8): 1.
The inventive concept total as one, the present invention also provides a kind of preparation methods of above-mentioned fluorine carbon insulated paint, including Following steps:
(1) aramid fiber is dispersed in water, obtains the aqueous slurry containing aramid short fiber;
(2) pigment, filler, aqueous dispersion, wetting agent, defoaming agent are mixed and is uniformly dispersed, obtain filling out containing face The aqueous slurry of material;
(3) slurry prepared by step (1) and step (2) is mixed, and water-based fluorocarbon resin, anti-flash rusting agent, thickening is added Agent, levelling agent, are uniformly dispersed, and obtain component A;
(4) be (6-8) according to the mass ratio of component A and component B: the water-based isocyanate that 1 amount prepares 100% content is solid Agent is as component B.
Above-mentioned preparation method, it is preferred that in the step (1), dispersion process is dispersed using fluffer, dispersion speed Degree is 20000~30000r/m, and jitter time is 0.5~1.5h.
Above-mentioned preparation method, it is preferred that in the step (2), rate of dispersion is 2000~3000r/m, jitter time For 0.5~1.5h;
In the step (3), rate of dispersion is 500~1500r/m, and jitter time is 0.5~1.0h.
Compared with the prior art, the advantages of the present invention are as follows:
(1) fluorine carbon insulated paint resistance to chemical corrosion of the invention and salt spray resistance are good, have good weatherability, is resistance to Good in thermal property has good flame retardant property, electrical insulation properties excellent;Normal volume resistivity is up to 1 × 1013Ω m, electricity Gas intensity is in 30KV/mm or more, and resistance to ultraviolet artificial accelerated aging 1500 hours, resisting salt fog corrosion 1000 hours, oxygen index (OI) was reachable To 28 or more, belong to fire-retardant rank.
(2) no resin pigments and fillers slurry is first prepared in preparation method of the invention, then fluorine carbon emulsion is added in low speed, can avoid The risk that fluorine carbon emulsion is demulsified under the conditions of high speed shear.
(3) disperse aramid fiber using fluffer substitution high speed disperser in preparation method of the invention, it is more efficient, point It is more preferable to dissipate effect.
Specific embodiment
To facilitate the understanding of the present invention, invention herein is done below in conjunction with preferred embodiment and more comprehensively, is meticulously retouched It states, but protection scope of the present invention is not limited to following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art Together.Technical term used herein is intended merely to the purpose of description specific embodiment, and it is of the invention to be not intended to limitation Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city Field is commercially available or can be prepared by existing method.
Embodiment 1:
A kind of aramid fiber modified water-soluble fluorine carbon insulated paint, including component A and B component (water-based isocyanate curing agent), Wherein, component A is mainly prepared by the raw material of following parts by weight:
Wherein auxiliary agent is aqueous dispersion HY1940 (28g), wetting agent BYK341 (5g), defoaming agent BYK024 (3g), prevents Flash rusting agent (5g), thickener R972 (5g), levelling agent LT (4g).
The preparation method of the aramid fiber modified water-soluble fluorine carbon insulated paint of the present embodiment, comprising the following steps:
(1) preparation of component A:
(a) 100g aramid short fiber 1313 is dispersed in going for 50g under Strong shear power dispersion condition using fluffer In ionized water, disperse 1 hour, rate of dispersion is 25000 revs/min, forms the aqueous slurry containing aramid short fiber in water ①;
(b) by 180g rutile type titanium white R902,50g composite zinc phosphate A, 20g talcum powder, 28g aqueous dispersion HY1940,5g wetting agent BYK341,3g defoaming agent BYK024 and 70g deionized water mixing, using dispersion machine in high speed dispersion item Disperse 1 hour under part, rate of dispersion is 3000 revs/min, and aqueous slurry is made 2.;
(c) 1. 2. aqueous slurry is mixed and added into aqueous slurry the anti-flash rusting agent of 480g water-based fluorocarbon resin E670,5g, 5g thickener R972,4g levelling agent LT is dispersed 0.5 hour using dispersion machine middling speed, and rate of dispersion is 600 revs/min, obtains A group Point;
(2) 100% water-based isocyanate curing agent XD803 directly the preparation of B component: is weighed to packing to get B group is arrived Point.
With B component be in mass ratio by component A 8:1 amount be uniformly mixed and with tap water be adjusted to working viscosity (18~ 40s applies 4# glasss), with the method construction brushed or sprayed after curing 15 minutes.
Embodiment 2:
A kind of aramid fiber modified water-soluble fluorine carbon insulated paint, including component A and B component (water-based isocyanate curing agent), Wherein, component A is mainly prepared by the raw material of following parts by weight:
Wherein auxiliary agent is aqueous dispersion HY1940 (38g), wetting agent BYK341 (5g), defoaming agent BYK024 (3g), prevents Flash rusting agent (5g), thickener R972 (5g), levelling agent LT (4g).
The preparation method of the aramid fiber modified water-soluble fluorine carbon insulated paint of the present embodiment, comprising the following steps:
(1) preparation of component A:
(a) 80g aramid fiber 1313 is dispersed in 40g water under Strong shear power dispersion condition using fluffer, dispersion 1 1. hour (rate of dispersion is 20000 revs/min), the original aqueous slurry containing aramid short fiber is formed in water;
(b) 120g iron oxide red CT, 50g composite zinc phosphate A, 50g silicon powder, 38g aqueous dispersion HY1940,5g is wet Moisten the mixing of agent BYK341,3g defoaming agent BYK024,80g deionized water, it is small to disperse 1.2 under the conditions of high speed dispersion using dispersion machine When (rate of dispersion be 2500 revs/min), aqueous slurry is made 2.;
(c) 1. 2. aqueous slurry is mixed and added into aqueous slurry the anti-flash rusting agent of 520g water-based fluorocarbon resin E670,5g, 5g thickener R972,4g levelling agent LT is dispersed 0.5 hour (rate of dispersion is 800 revs/min) using dispersion machine middling speed, A group is made Point;
(2) preparation of B component: 100% water-based isocyanate curing agent XD803 is directly weighed and dispenses to obtain B component.
Component A is uniformly mixed with B component by 6:1 and is adjusted to working viscosity (18~40s applies 4# glasss) with tap water, With the method construction brushed or sprayed after curing 15 minutes.
Embodiment 3:
A kind of aramid fiber modified water-soluble fluorine carbon insulated paint, including component A and B component (water-based isocyanate curing agent), Wherein, component A is mainly prepared by the raw material of following parts by weight:
Wherein auxiliary agent is aqueous dispersion DISUPER S19 (38g), wetting agent BYK341 (5g), defoaming agent BYK020 (3g), anti-flash rusting agent (5g), thickener PAMID D760 (5g), levelling agent HYPERLEV F81 (4g).
The preparation method of the aramid fiber modified water-soluble fluorine carbon insulated paint of the present embodiment, comprising the following steps:
(1) preparation of component A:
(a) 100g aramid fiber 1313 is dispersed in 50g water using fluffer under Strong shear power dispersion condition, is dispersed 1.2 hours, rate of dispersion was 30000 revs/min, formed the original aqueous slurry containing aramid short fiber in water 1.;
(b) by 1250 mesh mica powder of 70g pigment scarlet powder F3RK70,70g composite zinc phosphate A, 50g, 38g aqueous dispersion DISUPER S19, the mixing of 5g wetting agent BYK341,3g defoaming agent BYK020 and 100g deionized water, using dispersion machine in high speed Disperse under dispersion condition 1 hour (rate of dispersion is 2200 revs/min), aqueous slurry is made 2.;
(c) 1. 2. aqueous slurry is mixed and added into the anti-flash rusting agent of 500g water-based fluorocarbon resin, 5g with aqueous slurry, 5g increases Thick dose of PAMID D760,4g levelling agent HYPERLEV F81 disperse 0.5 hour (rate of dispersion 800 using dispersion machine middling speed Rev/min), component A is made;
(2) preparation of B component: 100% water-based isocyanate curing agent XD803 is directly weighed and dispenses to obtain B component.
Component A is uniformly mixed with B component by 7:1 and is adjusted to working viscosity (18~40s applies 4# glasss) with tap water, With the method construction brushed or sprayed after curing 15 minutes.
Embodiment 4:
A kind of aramid fiber modified water-soluble fluorine carbon insulated paint, including component A and B component (water-based isocyanate curing agent), Wherein, component A is mainly prepared by the raw material of following parts by weight:
Wherein, auxiliary agent is aqueous dispersion DISUPER S19 (38g), wetting agent BYK341 (5g), defoaming agent BYK020 (3g), anti-flash rusting agent (5g), thickener PAMID D760 (5g), levelling agent HYPERLEV F81 (4g).
The preparation method of the aramid fiber modified water-soluble fluorine carbon insulated paint of the present embodiment, comprising the following steps:
(1) preparation of component A:
(a) 110g aramid fiber 1414 is dispersed in 55g water using fluffer under Strong shear power dispersion condition, is dispersed 1. 1.5 hours (rate of dispersion is 28000 revs/min), the original aqueous slurry containing aramid short fiber is formed in water;
(b) by 1250 mesh cloud of 30g phthalocyanine blue BGS, 100g rutile type titanium white R902,50g composite zinc phosphate A, 50g Female powder, 38g aqueous dispersion DISUPER S19, the mixing of 5g wetting agent BYK341,3g defoaming agent BYK020,65g deionized water, Dispersed under the conditions of high speed dispersion using dispersion machine 1.5 hours (rate of dispersion is 3000 revs/min), aqueous slurry is made 2.;
(c) 1. 2. aqueous slurry is mixed and added into aqueous slurry the anti-flash rusting agent of 480g water-based fluorocarbon resin E670,5g, 5g thickener PAMID D760,4g levelling agent HYPERLEV F81, dispersing 0.5 hour using dispersion machine middling speed, (rate of dispersion is 1000 revs/min), component A is made;
(2) preparation of B component: 100% water-based isocyanate curing agent XD803 is directly weighed and dispenses to obtain component B.
Component A is uniformly mixed with B component by 8:1 and with being originally adjusted to working viscosity (18~40s, apply 4# glasss), it is ripe With the method construction brushed or sprayed after changing 15 minutes.
Referring to the countries concerned or professional standard, performance detection is carried out to embodiments above, the result is as follows:
By the experimental data of upper table it is found that fluorine carbon insulated paint resistance to chemical corrosion of the invention and salt spray resistance it is good, With good weatherability, heat resistance is good, has good flame retardant property, electrical insulation properties excellent;Normal volume resistance Rate is up to 1 × 1013Ω m or more, electrical strength is in 30KV/mm or more, resistance to ultraviolet artificial accelerated aging 1500 hours, salt spray resistance Corrosion 1000 hours, oxygen index (OI) can reach 28 or more, belong to fire-retardant rank.

Claims (10)

1. a kind of aramid fiber modified water-soluble fluorine carbon insulated paint, which is characterized in that the water-based fluorocarbon insulated paint is that multicomponent is exhausted Edge paint, including component A and B component, wherein the component A is mainly prepared by the raw material of following weight percentage:
The B component is mainly water-based isocyanate curing agent.
2. water-based fluorocarbon insulated paint as described in claim 1, which is characterized in that the water-based fluorocarbon resin is by trifluoro chloroethene The fluoro-resin emulsion for the alternating copolymerization structure that alkene and vinyl ethers copolyreaction are formed, hydroxyl value are 70~80mgKOH/g, acid value For 13~15mgKOH/g, fluorine content 21~25%.
3. water-based fluorocarbon insulated paint as described in claim 1, which is characterized in that the aramid fiber is poly- paraphenylene terephthalamide couple Phenylenediamine chopped strand 1414 or/and poly chopped strand 1313.
4. water-based fluorocarbon insulated paint as described in claim 1, which is characterized in that the water-based isocyanate curing agent is aqueous Aliphatic polyisocyante, solid content are 66%~72%, and isocyanate content is 11.2%~13.2%.
5. such as the described in any item water-based fluorocarbon insulated paint of Claims 1 to 4, which is characterized in that the auxiliary agent includes aqueous point Powder, wetting agent, defoaming agent, anti-flash rusting agent, thickener, levelling agent it is one or more.
6. such as the described in any item water-based fluorocarbon insulated paint of Claims 1 to 4, which is characterized in that the pigment be iron oxide red, One of pigment scarlet powder, phthalocyanine blue, titanium dioxide, composite zinc phosphate are a variety of;The filler is silicon powder, mica powder, talcum powder One of or it is a variety of.
7. such as the described in any item water-based fluorocarbon insulated paint of Claims 1 to 4, which is characterized in that in use, the A The mass ratio of component and B component is (6-8): 1.
8. a kind of preparation method of water-based fluorocarbon insulated paint as described in any one of claims 1 to 6, which is characterized in that including Following steps:
(1) aramid fiber is dispersed in water, obtains the aqueous slurry containing aramid short fiber;
(2) pigment, filler, aqueous dispersion, wetting agent, defoaming agent are mixed and is uniformly dispersed, obtain the water containing face, filler Property slurry;
(3) slurry prepared by step (1) and step (2) is mixed, and water-based fluorocarbon resin, anti-flash rusting agent, thickener, stream is added Flat agent, is uniformly dispersed, and obtains component A;
(4) be (6-8) according to the mass ratio of component A and component B: 1 amount prepares the water-based isocyanate curing agent of 100% content As component B.
9. preparation method as claimed in claim 8, which is characterized in that in the step (1), dispersion process using fluffer into Row dispersion, rate of dispersion are 20000~30000r/m, and jitter time is 0.5~1.5h.
10. preparation method as claimed in claim 8, which is characterized in that in the step (2), rate of dispersion be 2000~ 3000r/m, jitter time are 0.5~1.5h;
In the step (3), rate of dispersion is 500~1500r/m, and jitter time is 0.5~1.0h.
CN201811101796.4A 2018-09-20 2018-09-20 A kind of aramid fiber modified water-soluble fluorine carbon insulated paint and preparation method thereof Pending CN109401462A (en)

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