CN101130662A - Aquosity metallic protective paint and method for producing the same - Google Patents
Aquosity metallic protective paint and method for producing the same Download PDFInfo
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- CN101130662A CN101130662A CNA2007101635702A CN200710163570A CN101130662A CN 101130662 A CN101130662 A CN 101130662A CN A2007101635702 A CNA2007101635702 A CN A2007101635702A CN 200710163570 A CN200710163570 A CN 200710163570A CN 101130662 A CN101130662 A CN 101130662A
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Abstract
The invention discloses a water-based metallic protective paint, which comprises the following steps: adding water-soluble resin, butyl ether, ammoniac water and deionized water into charge make-up pot; stirring at low speed evenly; adding into aids; mixing evenly; adding into colour filler; scattering above 20 min with high speed at 1200rpm; grinding; driving the pigment paste into allocating tank; stirring with low speed; mixing evenly; adding into dry material; stirring at least above 15min; adding into water; diluting. This product can form continuous paint film, which possesses good hardness, strong adhesive force and low price.
Description
One, technical field
The invention belongs to a kind of aquosity metallic protective paint and preparation method thereof.
Two, background technology
Solvent generally accounts for 50% in the solvent-borne type paint, and it uses the back solvent evaporates to aerial, not only wastes resource, and contaminate environment, and heavy metal content height in it does not abroad re-use at present substantially.The aqueous industrial anticorrosive coating is the forbidden zone of water-borne coatings in the past always, but now owing to the development of water-borne coatings technology can " have been rushed " finally.And aqueous metallic paint can be converted into the corrosion layer of metallic surface useful protective layer, is that solvent-borne type paint is incomparable, is the developing direction of domestic and international coatings industry.
Many extremely successful metal anticorrosion water-soluble coating systems are just arranged at present in the world, the railway bridge scheme adopts water-thinned epoxy zinc-rich, aqueous acrylamide acid primer, water-based acrylic acid top-coat, passed through the test of time, strong proof the superiority of water-borne coatings on protective system is used; By bi-component aqueous epoxy priming paint, the protective system that japanning and single component bulky amine hybrid resin face are formed in the bi-component aqueous epoxy, its build is respectively 40 μ m * 2,30 μ m and 25 μ m, be ambient cure, wherein priming paint alkali resistance (the 5%NaOH aqueous solution) is 168 hours, salt fog resistance (5%) 192 hour, water tolerance 1000 hours, the anti-volatile oil of middle japanning 48 hours, and finish paint is no abnormal through 2000 hours test paint films in the daylight type ageing device, gloss retention is more than 80%, this water-based etching ground system out of doors riviera tan by the sun 3 years no abnormal.Above product all is external manufacturer production, though its performance is better, price is very high, and general price is ten thousand yuan/ton of 4-6, and receipt period is long, and by sea-freight, at least one month of ordering goods just can arrive, and can't promote on a large scale at home.
Domestic water-based industry anti-corrosion paint use resin still rests on the use emulsion, its performance is subjected to the restriction of emulsion synthetic technology, and it is bigger with the aquosity metallic protective paint of water miscible liquid preparation owing to its grain, film-forming properties is poor, must add a certain amount of furtherance film, just can form successive films, the compactness of filming of Xing Chenging is poor like this, steam transmitance height, especially show relatively poor on the salt spray resistance, so on preservative property, exist tangible gap with comparing with the solvent-thinned paint of class with the aquosity metallic protective paint of aqueous emulsion type base-material preparation.Emulsion must add emulsifying agent in polymerization process on the other hand, and emulsion is relatively poor to the wetting property of color stuffing, must add a certain amount of wetting agent, dispersion agent in the process of preparation lacquer, helps color stuffing to disperse, and causes foam easily after excessive.The auxiliary agent that adds, wetting ability is stronger, influences the final performance of paint film.
Three, summary of the invention
The present invention solves the above-mentioned problems in the prior art exactly, a kind of furtherance film that do not need to add is provided, just can form successive films, has the self-emulsifying function, wetting property to color stuffing is good, need not to add dispersion agent in the process of preparation lacquer and helps color stuffing to carry out dispersive aquosity metallic protective paint and preparation method thereof.
For addressing the above problem, technical solution of the present invention is: a kind of aquosity metallic protective paint, count by weight percentage, it is made by following proportioning raw materials, 20～40% water-base resin, 1～5% butyl ether, 30～40% deionized water, 2～4% ammoniacal liquor, auxiliary agent: 0.1～0.5% wetting agent HR600 and 0.15～0.25% defoamer BYK020, color stuffing: 0.5～1.0% carbon black MA100,3～8% iron oxide black Bayer, 4～6% modified zinc phosphate ZPA, 5～15% composite iron-titanium powder WD-D-1250,4～8% barium sulfate 1500 orders and 1～5% bentonite, and siccative: 0.5～0.8% zinc siccative, 0.5～0.8% manganese siccative and 0.5～1.0% cobalt siccative.
The preferable range of above-mentioned described proportioning raw materials of the present invention is: 25～30% water-base resin, 1～1.5% butyl ether, 35～40% deionized water, 2.5～3.5% ammoniacal liquor, auxiliary agent: 0.3～0.5% wetting agent HR600 and 0.15～0.25% defoamer BYK020, color stuffing: 0.5～1.0% carbon black MA100,5～8% iron oxide black Bayer, 4～6% modified zinc phosphate ZPA, 10～15% composite iron-titanium powder WD-D-1250,4～6% barium sulfate 1500 orders and 1～5% bentonite, and siccative: 0.5～0.8% zinc siccative, 0.5～0.8% manganese siccative and 0.5～1.0% cobalt siccative.
Water-base resin wherein, it is made by following proportioning raw materials, count by weight percentage: 20～25% synthetic fatty acid, 5～10% neopentyl glycol, 10～15% TriMethylolPropane(TMP), 18～25% m-phthalic acid, 0.05～0.07% esterifying agent, 5～10% inclined to one side acid anhydride, 15～20% butyl ether and 10～15% two butanols.
A kind of making method of above-mentioned described aquosity metallic protective paint: it may further comprise the steps:
1, the making method of above-mentioned described water-base resin: it may further comprise the steps:
(1), synthetic fatty acid, neopentyl glycol, TriMethylolPropane(TMP), m-phthalic acid, esterifying agent are added in the reactor according to formula ratio, build the reaction kettle cover.
(2), be warming up to 130-140 ℃ with 1-2 hour, the runin motor stirs, and can not rotate as motor, continue to be warming up to when stirring can be rotated and open again, simultaneously the CO2 of logical 0.05Mpa to reactor, logical water of condensation to the condenser of reactor.
(3), continue to heat up, be warming up to 180 ℃ with 1 ± 0.1 hour, esterification is 1 ± 0.05 hour when 180 ± 2 ℃ of temperature maintenances.
(4), be warming up to 220 ℃ with 1 ± 0.1 hour, esterification when 220-240 ℃ of insulation, acid value is surveyed in transparent back, when acid value is reduced to≤8.5mgKOH/g, during viscosity 〉=0.8 second, from the fire-fighting water for cooling.
(5), when temperature is reduced to 160 ± 2 ℃, stop spray cooling, adding heats up behind the inclined to one side acid anhydride of described amount in 175-180 ℃ is retained to acid value 52-62mgKOH/g, viscosity 〉=25 second are from the fire-fighting water for cooling.
(6), be cooled to 150 ± 2 ℃, stop spray cooling, stop CO2 and water of condensation, add butyl ether, the two butanols latting drowns of described amount, be cooled to 100-110 ℃, filter and package.
2, water-base resin, butyl ether, ammoniacal liquor and the deionized water with above-mentioned described amount adds in the pot of getting the raw materials ready, and stirring at low speed under 400-600rpm mixes.
3, the auxiliary agent that adds above-mentioned described amount successively: wetting agent HR600 and defoamer BYK020, after mixing, add color stuffing: carbon black MA100, iron oxide black Bayer, modified zinc phosphate ZPA, composite iron-titanium powder WD-D-1250, barium sulfate 1500 orders, bentonite, high speed dispersion is more than 20 minutes under 1200rpm, form even mill base, do not have obvious dry mash piece.
4, the mill base that stirs is ground fineness≤25um; Squeeze into to transfer and convert in the jar grinding qualified mill base, open stirring, low speed mixing is even, slowly adds the siccative of above-mentioned described amount successively: zinc siccative, manganese siccative and cobalt siccative, stir more than at least 15 minutes, and add water and transfer rare to being coated with for 4 viscosity 120-200 seconds.
Because the present invention has adopted such scheme, it is dispersion medium that the water-base resin that adopts above composition of raw materials to make has with water, and also available alcohol or ether-ether dilute, and good stability can directly add color stuffing, grinds.Rate of drying is fast, can form crosslinked filming by oxidation drying.Mechanical and physical performance is good, the hardness height, and strong adhesion, water tolerance is superior.Have extremely excellent antiseptic property, have good ornamental and protective.Do not fire, not quick-fried, nuisanceless, low tempertaure storage never degenerates.Employing has the aquosity metallic protective paint of the water-base resin preparation of above-mentioned characteristic, it does not need to add the furtherance film, just can form successive films, has the self-emulsifying function, dispersion liquid need not add emulsifying agent in polymerization process, and emulsion is fine to the wetting property of color stuffing, need not to add dispersion agent in the process of preparation lacquer again and helps color stuffing to disperse.It does not contain harmful solvent benzol, toluene, dimethylbenzene etc., does not contain harmful heavy metal lead, mercury, cadmium, chromium, meets the requirement of up-to-date in the world environmental protection standard.It is the single-component lacquer, can be from doing, but also oven drying at low temperature, fast drying, but 20 minutes surface dryings, hardness is good, strong adhesion, preservative property are good, and salt fog resistance reached more than 500 hours, and is easy to use, price is far below external imported product, general price is ten thousand yuan/ton of 1.5-2.5, is suitable for the Metal Protection application of various industries such as industrial equipments, machinofacture, hardware and electrical equipment, household electrical appliance, especially is suitable for the protective coating of metal drive shaft.
Four, embodiment
Embodiment 1, present embodiment are made by following proportioning raw materials, 25% water-base resin, 1% butyl ether, 40% deionized water, 2.95% ammoniacal liquor, 0.4% wetting agent HR600,0.15% defoamer BYK020,1.0% carbon black MA100,6% iron oxide black Bayer, 5% modified zinc phosphate ZPA, 10% composite iron-titanium powder WD-D-1250,4% barium sulfate 1500 orders, 2% bentonite, 0.7% zinc siccative, 0.8% manganese siccative and 1.0% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 20% synthetic fatty acid, 5% neopentyl glycol, 10% TriMethylolPropane(TMP), 25% m-phthalic acid, 0.07% esterifying agent, 10% inclined to one side acid anhydride, 17% butyl ether, 12.93% two butanols.
The making method of above-mentioned described aquosity metallic protective paint: it may further comprise the steps:
1, the making method of above-mentioned described water-base resin: it may further comprise the steps:
(1) synthetic fatty acid, neopentyl glycol, TriMethylolPropane(TMP), m-phthalic acid, the esterifying agent with above-mentioned described amount adds in the reactor according to formula ratio, builds the reaction kettle cover.
(2) be warming up to 130-140 ℃ with 1-2 hour, the runin motor stirs, and can not rotate as motor, continues to be warming up to motor and can rotate when stirring and open, the CO2 that leads to 0.05Mpa simultaneously to reactor, lead to water of condensation to the condenser of reactor.
(3) continue to heat up, be warming up to 180 ℃ with 1 hour.Esterification is 1 hour when temperature keeps 180 ± 2 ℃.
(4) be warming up to 220 ℃ with 1 hour, 220-240 ℃ of when insulation esterification, acid value is surveyed in transparent back, when acid value is reduced to≤8.5mgKOH/g, during viscosity 〉=0.8 second, from the fire-fighting water for cooling.
(5) when temperature is reduced to 160 ℃, stop spray cooling, adding heats up behind the inclined to one side acid anhydride of described amount in 175-180 ℃ is retained to acid value 52-62mgKOH/g, and viscosity 〉=25 second lower the temperature from the fire-fighting trickle.
(6) reduce to 150 ℃ when temperature, stop spray cooling, stop CO2 and water of condensation, add butyl ether, the two butanols latting drowns of described amount.The record aquifer yield adds butyl ether earlier before the latting drown, adds two butanols again, notes rising pot, stirs after 0.5 hour, washes three sub-sampling utensil viscosimetrics, as 〉=200 seconds, can suitably strengthen the latting drown amount.
(7) be cooled to 100-110 ℃, filter and package.Notice checking whether the refill filter is normal.
2, water-base resin, butyl ether, ammoniacal liquor and the deionized water with above-mentioned described amount adds in the pot of getting the raw materials ready, and stirring at low speed under 400-600rpm mixes.
3, the auxiliary agent that adds above-mentioned described amount successively: wetting agent HR600 and defoamer BYK020, after mixing, add color stuffing: carbon black MA100, iron oxide black Bayer, modified zinc phosphate ZPA, composite iron-titanium powder WD-D-1250, barium sulfate 1500 orders, bentonite, high speed dispersion is more than 20 minutes under 1200rpm, form even mill base, do not have obvious dry mash piece.
4, the mill base that stirs is ground fineness≤25um; Squeeze into to transfer and convert in the jar grinding qualified mill base, open stirring, low speed mixing is even, slowly adds the siccative of above-mentioned described amount successively: zinc siccative, manganese siccative and cobalt siccative, stir more than at least 15 minutes, and add water and transfer rare to being coated with for 4 viscosity 120-200 seconds.
Embodiment 2, present embodiment are made by following proportioning raw materials, 30% water-base resin, 1.5% butyl ether, 35% deionized water, 2.5% ammoniacal liquor, 0.3% wetting agent HR600,0.2% defoamer BYK020,0.5% carbon black MA100,5% iron oxide black Bayer, 4% modified zinc phosphate ZPA, 12.5% composite iron-titanium powder WD-D-1250,6% barium sulfate 1500 orders, 1% bentonite, 0.5% zinc siccative, 0.5% manganese siccative and 0.5% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 23% synthetic fatty acid, 8% neopentyl glycol, 11% TriMethylolPropane(TMP), 21% m-phthalic acid, 0.06% esterifying agent, 7% inclined to one side acid anhydride, 18% butyl ether, 11.94% two butanols.Its making method is with embodiment 1.
Embodiment 3, present embodiment are made by following proportioning raw materials, 26% water-base resin, 1.25% butyl ether, 36.2% deionized water, 3% ammoniacal liquor, 0.5% wetting agent HR600,0.25% defoamer BYK020,0.7% carbon black MA100,6% iron oxide black Bayer, 6% modified zinc phosphate ZPA, 11% composite iron-titanium powder WD-D-1250,5% barium sulfate 1500 orders, 2% bentonite, 0.8% zinc siccative, 0.6% manganese siccative and 0.7% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 21.95% synthetic fatty acid, 10% neopentyl glycol, 15% TriMethylolPropane(TMP), 18% m-phthalic acid, 0.05% esterifying agent, 5% inclined to one side acid anhydride, 20% butyl ether, 10% two butanols.Its making method is with embodiment 1.
Embodiment 4, present embodiment are made by following proportioning raw materials, 25% water-base resin, 1.4% butyl ether, 35.4% deionized water, 2.8% ammoniacal liquor, 0.35% wetting agent HR600,0.18% defoamer BYK020,0.77% carbon black MA100,5% iron oxide black Bayer, 4.5% modified zinc phosphate ZPA, 13% composite iron-titanium powder WD-D-1250,4.5% barium sulfate 1500 orders, 5% bentonite, 0.6% zinc siccative, 0.7% manganese siccative and 0.8% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 25% synthetic fatty acid, 6.935% neopentyl glycol, 12% TriMethylolPropane(TMP), 20% m-phthalic acid, 0.065% esterifying agent, 6% inclined to one side acid anhydride, 15% butyl ether, 15% two butanols.Its making method is with embodiment 1.
Embodiment 5, present embodiment are made by following proportioning raw materials, 25.5% water-base resin, 1% butyl ether, 35.55% deionized water, 3.5% ammoniacal liquor, 0.3% wetting agent HR600,0.15% defoamer BYK020,0.5% carbon black MA100,8% iron oxide black Bayer, 4% modified zinc phosphate ZPA, 15% composite iron-titanium powder WD-D-1250,4% barium sulfate 1500 orders, 1% bentonite, 0.5% zinc siccative, 0.5% manganese siccative and 0.5% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 21% synthetic fatty acid, 6% neopentyl glycol, 14% TriMethylolPropane(TMP), 22% m-phthalic acid, 0.055% esterifying agent, 8% inclined to one side acid anhydride, 16% butyl ether, 12.945% two butanols.Its making method is with embodiment 1.
Embodiment 6, present embodiment are made by following proportioning raw materials, 20% water-base resin, 5% butyl ether, 40% deionized water, 4% ammoniacal liquor, 0.15% wetting agent HR600,0.25% defoamer BYK020,1.0% carbon black MA100,3% iron oxide black Bayer, 6% modified zinc phosphate ZPA, 5% composite iron-titanium powder WD-D-1250,8% barium sulfate 1500 orders, 5% bentonite, 0.8% zinc siccative, 0.8% manganese siccative and 1% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 21% synthetic fatty acid, 6% neopentyl glycol, 14% TriMethylolPropane(TMP), 22% m-phthalic acid, 0.055% esterifying agent, 8% inclined to one side acid anhydride, 16% butyl ether, 12.945% two butanols.Its making method is with embodiment 1.
Embodiment 7, present embodiment are made by following proportioning raw materials, 40% water-base resin, 3% butyl ether, 30% deionized water, 2% ammoniacal liquor, 0.1% wetting agent HR600,0.15% defoamer BYK020,0.6% carbon black MA100,5.05% iron oxide black Bayer, 5% modified zinc phosphate ZPA, 7% composite iron-titanium powder WD-D-1250,4% barium sulfate 1500 orders, 1% bentonite, 0.6% zinc siccative, 0.7% manganese siccative and 0.8% cobalt siccative.Above-mentioned described water-base resin is made by following proportioning raw materials, 21.95% synthetic fatty acid, 10% neopentyl glycol, 15% TriMethylolPropane(TMP), 18% m-phthalic acid, 0.05% esterifying agent, 5% inclined to one side acid anhydride, 20% butyl ether, 10% two butanols.Its making method is with embodiment 1.
Claims (10)
1. aquosity metallic protective paint, it is characterized in that: count by weight percentage, it is made by following proportioning raw materials, 20～40% water-base resin, 1～5% butyl ether, 30～40% deionized water, 2～4% ammoniacal liquor, auxiliary agent: 0.1～0.5% wetting agent HR600 and 0.15～0.25% defoamer BYK020, color stuffing: 0.5～1.0% carbon black MA100,3～8% iron oxide black Bayer, 4～6% modified zinc phosphate ZPA, 5～15% composite iron-titanium powder WD-D-1250,4～8% barium sulfate 1500 orders and 1～5% bentonite, and siccative: 0.5～0.8% zinc siccative, 0.5～0.8% manganese siccative and 0.5～1.0% cobalt siccative.
2. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 25～30% water-base resin, 1～1.5% butyl ether, 35～40% deionized water, 2.5～3.5% ammoniacal liquor, auxiliary agent: 0.3～0.5% wetting agent HR600 and 0.15～0.25% defoamer BYK020, color stuffing: 0.5～1.0% carbon black MA100,5～8% iron oxide black Bayer, 4～6% modified zinc phosphate ZPA, 10～15% composite iron-titanium powder WD-D-1250,4～6% barium sulfate 1500 orders and 1～5% bentonite, and siccative: 0.5～0.8% zinc siccative, 0.5～0.8% manganese siccative and 0.5～1.0% cobalt siccative.
3. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 25% water-base resin, 1% butyl ether, 40% deionized water, 2.95% ammoniacal liquor, 0.4% wetting agent HR600,0.15% defoamer BYK020,1.0% carbon black MA100,6% iron oxide black Bayer, 5% modified zinc phosphate ZPA, 10% composite iron-titanium powder WD-D-1250,4% barium sulfate 1500 orders, 2% bentonite, 0.7% zinc siccative, 0.8% manganese siccative and 1.0% cobalt siccative.
4. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 25% water-base resin, 1.4% butyl ether, 35.4% deionized water, 2.8% ammoniacal liquor, 0.35% wetting agent HR600,0.18% defoamer BYK020,0.77% carbon black MA100,5% iron oxide black Bayer, 4.5% modified zinc phosphate ZPA, 13% composite iron-titanium powder WD-D-1250,4.5% barium sulfate 1500 orders, 5% bentonite, 0.6% zinc siccative, 0.7% manganese siccative and 0.8% cobalt siccative.
5. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 25.5% water-base resin, 1% butyl ether, 35.55% deionized water, 3.5% ammoniacal liquor, 0.3% wetting agent HR600,0.15% defoamer BYK020,0.5% carbon black MA100,8% iron oxide black Bayer, 4% modified zinc phosphate ZPA, 15% composite iron-titanium powder WD-D-1250,4% barium sulfate 1500 orders, 1% bentonite, 0.5% zinc siccative, 0.5% manganese siccative and 0.5% cobalt siccative.
6. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 30% water-base resin, 1.5% butyl ether, 35% deionized water, 2.5% ammoniacal liquor, 0.3% wetting agent HR600,0.2% defoamer BYK020,0.5% carbon black MA100,5% iron oxide black Bayer, 4% modified zinc phosphate ZPA, 12.5% composite iron-titanium powder WD-D-1250,6% barium sulfate 1500 orders, 1% bentonite, 0.5% zinc siccative, 0.5% manganese siccative and 0.5% cobalt siccative.
7. aquosity metallic protective paint according to claim 1, it is characterized in that: it is made by following proportioning raw materials, 26% water-base resin, 1.25% butyl ether, 36.2% deionized water, 3% ammoniacal liquor, 0.5% wetting agent HR600,0.25% defoamer BYK020,0.7% carbon black MA100,6% iron oxide black Bayer, 6% modified zinc phosphate ZPA, 11% composite iron-titanium powder WD-D-1250,5% barium sulfate 1500 orders, 2% bentonite, 0.8% zinc siccative, 0.6% manganese siccative and 0.7% cobalt siccative.
8. according to any described aquosity metallic protective paint among the claim 1-7, it is characterized in that: described water-base resin is made by following proportioning raw materials, 20～25% synthetic fatty acid, 5～10% neopentyl glycol, 10～15% TriMethylolPropane(TMP), 18～25% m-phthalic acid, 0.05～0.07% esterifying agent, 5～10% inclined to one side acid anhydride, 15～20% butyl ether and 10～15% two butanols.
9. the making method of any described aquosity metallic protective paint among the claim 1-8, it is characterized in that: it may further comprise the steps:
(1), the water-base resin with described amount, butyl ether, ammoniacal liquor and deionized water add in the pot of getting the raw materials ready, stirring at low speed under 400-600rpm mixes;
(2), the auxiliary agent that adds described amount successively: wetting agent HR600 and defoamer BYK020, after mixing, the color stuffing that adds described amount: carbon black MA100, iron oxide black Bayer, modified zinc phosphate ZPA, composite iron-titanium powder WD-D-1250, barium sulfate 1500 orders and bentonite, high speed dispersion is more than 20 minutes under 1200rpm, form even mill base, do not have obvious dry mash piece;
(3), the mill base that stirs is ground fineness≤25um; Squeeze into to transfer and convert in the jar grinding qualified mill base, open stirring, low speed mixing is even, slowly adds the siccative of above-mentioned described amount successively: zinc siccative, manganese siccative and cobalt siccative, stir more than at least 15 minutes, and add water and transfer rare to being coated with for 4 viscosity 120-200 seconds.
10. the making method of aquosity metallic protective paint according to claim 9, it is characterized in that: the making method of described water-base resin may further comprise the steps:
(1), 20～25% synthetic fatty acids, 5～10% neopentyl glycol, 10～15% TriMethylolPropane(TMP), 18～25% m-phthalic acid, 0.05～0.07% esterifying agent are added in the reactor, build the reaction kettle cover;
(2), be warming up to 130-140 ℃ with 1-2 hour, the runin motor stirs, and can not rotate as motor, continue to be warming up to when stirring can be rotated and open again, simultaneously the CO2 of logical 0.05Mpa to reactor, logical water of condensation to the condenser of reactor;
(3), continue to heat up, be warming up to 180 ℃ with 1 ± 0.1 hour, esterification is 1 ± 0.05 hour when 180 ± 2 ℃ of temperature maintenances;
(4), be warming up to 220 ℃ with 1 ± 0.1 hour, esterification when 220-240 ℃ of insulation, acid value is surveyed in transparent back, when acid value is reduced to≤8.5mgKOH/g, during viscosity 〉=0.8 second, from the fire-fighting water for cooling;
(5), when temperature is reduced to 160 ± 2 ℃, stop spray cooling, adding heats up behind 5～10% the inclined to one side acid anhydride in 175-180 ℃ is retained to acid value 52-62mgKOH/g, viscosity 〉=25 second are from the fire-fighting water for cooling;
(6), be cooled to 150 ± 2 ℃, stop spray cooling, stop CO2 and water of condensation, add 15～20% butyl ether, 10～15% two butanols latting drowns, be cooled to 100-110 ℃, filter and package.
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| CN101560359B (en) * | 2008-04-14 | 2012-08-01 | 徐州正菱涂装工程技术研究中心 | Anti-corrosion antirust powder paint |
| CN102757717A (en) * | 2012-08-10 | 2012-10-31 | 漳州鑫展旺化工有限公司 | Water-soluble non-toxic environment-friendly automobile coating and preparation method thereof |
| CN103382317A (en) * | 2013-06-26 | 2013-11-06 | 南京市荣达树脂有限公司 | Metal protection resin varnish |
| CN106752959A (en) * | 2016-12-15 | 2017-05-31 | 江门市蓬江区文森装饰材料有限公司 | A kind of white primer and preparation method thereof |
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| CN116037935A (en) * | 2023-02-16 | 2023-05-02 | 华中科技大学 | Near-flake titanium alloy powder for metal automobile paint, and preparation method and application thereof |
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| CN102757717A (en) * | 2012-08-10 | 2012-10-31 | 漳州鑫展旺化工有限公司 | Water-soluble non-toxic environment-friendly automobile coating and preparation method thereof |
| CN103382317A (en) * | 2013-06-26 | 2013-11-06 | 南京市荣达树脂有限公司 | Metal protection resin varnish |
| CN106752959A (en) * | 2016-12-15 | 2017-05-31 | 江门市蓬江区文森装饰材料有限公司 | A kind of white primer and preparation method thereof |
| CN109294343A (en) * | 2018-09-29 | 2019-02-01 | 镇江宝海船舶五金有限公司 | A kind of ship anchor chains protective paint and preparation method thereof |
| CN116037935A (en) * | 2023-02-16 | 2023-05-02 | 华中科技大学 | Near-flake titanium alloy powder for metal automobile paint, and preparation method and application thereof |
| CN116037935B (en) * | 2023-02-16 | 2024-04-19 | 华中科技大学 | Near-flake titanium alloy powder for metal automobile paint, and preparation method and application thereof |
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