CN106047064A - High-wear-resistance high-adhesive-force modified epoxy amino baking varnish and preparation method thereof - Google Patents
High-wear-resistance high-adhesive-force modified epoxy amino baking varnish and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a high-wear-resistance high-adhesive-force modified epoxy amino baking varnish and a preparation method thereof. The baking varnish comprises an organosilicon-modified epoxy resin, a polyethyleneglycol-modified amino resin, a cellulosic resin, polydimethylsiloxane, deionized water, nano tin oxide, a titanate coupling agent, isopropanol, a water-based monomer, a pH neutralizer, a cosolvent, a wetting and dispersing agent, a defoamer, a thickener, an emulsifier, and a pigment and filler. By using the organosilicon-modified epoxy resin and polyethyleneglycol-modified amino resin as the main components of the epoxy amino baking varnish, the modified epoxy resin and amino resin can effectively enhance the hardness of the paint film. The composition design is reasonable; the deionized water is used as the solvent for dilution, and thus, is environment-friendly; the baking varnish has the advantages of higher wear resistance, high wear resistance, favorable ductility, high-temperature resistance and long service life; and roller coating is used instead of spray coating, thereby effectively improving the production environment and being beneficial to good health of workers.
Description
Technical field
The present invention relates to a kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish and preparation method thereof.
Background technology
Baking vanish is divided into two big classes, and a class low temperature baking vanish solidification temperature is 140 DEG C-180 DEG C, and an other class is known as high temperature and bakes
Paint, its solidification temperature is 280 DEG C-400 DEG C.[1]High temperature baking vanish, English full name is Polytetrafluoroetylene, is called for short
Teflon, PTFE, F4 etc..Teflon high-performance special baking vanish is the fluorine baking vanish with politef as matrix resin, English name
It is referred to as Teflon, because pronunciation, is referred to as the most again Teflon, ferrum richness dragon, Teflon, polytetrafluoroethylene etc. and (is all
The transliteration of Teflon).
According to the difference of main component, baking vanish can be divided into again Amino-Polyester baking vanish, alkyd amino-baking coatings, acrylic-amino roasting
Paint, epoxy amino baking vanish, acrylic baking vanish etc..
Along with economic development, resource and environmental problem have become a pair principal contradiction of sustainable development.Oil
Crisis directly results in crude oil price and skyrockets, and the cost of raw material of industrial coating is greatly improved, and quality and the market competition of price
Necessarily cause the survival of the fittest of a part of enterprise.Meanwhile, the discharge of VOC (VOC) is directly to environment band
Having carried out pollution seriously, the U.S. just promulgated 66 regulations from 1966, the strict discharge limiting VOC.China was from 80 years 20th century
Generation start formulated some environmental regulations the most successively, " planning of coating industry Eleventh Five-Year Development Plan " and " in coating industry science and technology grow
Phase development plan " the most clearly propose: following 15 years China will significantly cut down the market share of traditional solvent-borne coating, and aqueous is coated with
The environment-friendly type coatings such as material, ultraviolet-curing paint, powdery paints, solventless coatings and high solid coating will be that futurity industry is coated with
The main development direction of material.
And the preparation of existing epoxy amino baking vanish, mostly using organic solvent as diluent, the use of too much organic solvent,
Surrounding enviroment can be brought adverse effect.
Wherein, epoxy amino baking vanish is owing to having the performance of excellence, thus is widely used in industrial machinery, five metals man
The protection application of the metal bases such as electricity, farm machinery.Along with health of people and the continuous enhancing of environmental consciousness, its epoxy amino
The trend of the Water-borne modification of baking vanish is irresistible.
But, although use water-base epoxy amino-stoving varnish can effectively reduce the impact on environment, but, as finish paint application
Used, the hardness of paint film of epoxy amino baking vanish is an important indicator, and hardness of film (paint film hardness) is to represent
One of important performance of paint film mechanical strength.Its physical significance can be regarded as coating surface to acting on thereon, another hardness
The resistance that bigger object is showed.Certain mass load time institute table can be born on less contact surface by measuring film
Reveal the ability of resistance to deformation come and determined (include due to collision, collapse or wipe the deformability drawn etc. and cause).
Along with liter to metallic substrate surface hardness requirements such as industrial machinery, five metals household electrical appliances, farm machineries on market
Height, hardness of paint film existing, as the epoxy amino baking vanish of finish paint the most gradually cannot meet use requirement.
Currently, with respect to acrylic-amino baking vanish, domestic it is primarily present following patent documentation:
Patent publication No.: CN105623328A, discloses a kind of epoxy baking vanish formula for metal baking finish, described epoxy
Baking vanish use raw material and mass fraction be: dipropylene glycol methyl ether 12 parts, indolebutyric acid 0.5-0.6 part, amino resins 5-6
Part, aqueous acrylic modified epoxy resin 40-42 part, dispersant 0.7-1 part, defoamer 0.2-0.5 part, levelling agent 0.4-0.6
Part, stock white 29-33 part, thickening agent 0.01 part.The epoxy baking vanish using the formula of the present invention to prepare has reached traditional aqueous ring
The performance of epoxy resins paint, and the coating type preparing use is less, preparation flow is simpler, and the epoxy baking vanish product of preparation is more
Environmental protection, coating process flow process are simpler.But, the baking vanish that this patent is provided, it is mainly composed of aqueous acrylic modified ring
Epoxy resins, the mixing of amino resins, it is intended that pursue simplification and the product close friend to environment of baking vanish preparation method, but ignore paint
The improvement of film hardness.
Additionally, the coating method of existing baking vanish uses spraying mostly, spraying is by spray gun or dish-style nebulizer, by means of
Pressure or centrifugal force, be dispersed into uniform and fine droplet, is applied over the coating process on coated article surface.Mainly asking in spraying
Topic is the coating cloud of high degree of dispersion and the solvent (i.e. volatile organic contaminant, VOCs) evaporated, and had both polluted environment, and had been unfavorable for
Health, wastes again baking vanish, causes economic loss.Volatilization, the baking vanish being diffused in air, then form volatility organic contamination
Thing, is detrimental to health.At painting workshop, baking vanish as the main source of volatile organic contaminant, air in painting workshop
Be easy to during middle VOC excessive concentration to cause acute poisoning, the lighter there will be headache, dizziness, cough, feel sick,
Vomit or in dead drunk liquor-saturated shape；Severe one there will be liver poisoning and the most quickly goes into a coma, and have there may also be life danger.Stay in for a long time and wave
Send out in the painting workshop of property orgnic compound pollution, can cause chronic poisoning, infringement liver and nervous system, cause whole body without
Power, drowsiness, skin pruritus etc..Being also possible to of having causes endocrine disturbance, affects sexual function；Benzene and dimethylbenzene can also damage system
System, so that causing leukemia.
Summary of the invention
For solving the problem of above-mentioned existence, it is an object of the invention to provide a kind of high abrasion adhesive force strong modified epoxy ammonia
Base baking vanish and preparation method thereof, described baking vanish is using modifying epoxy resin by organosilicon and poly ethyldiol modified amino resins as epoxy
The main component of amino-stoving varnish, modified epoxy resin and amino resins can effectively promote hardness of paint film, and constituent designs
Rationally, it is diluted with deionized water for solvent, environmentally friendly, improve anti-wear performance, and adhesive force is strong, ductility is good, resistance to
High temperature, service life are long, use roller coat to replace spraying, be effectively improved production environment during coating, and beneficially workman is healthy.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish, described baking vanish includes the composition of following weight portion: organic
Silicon modified epoxy resin: 40～60 parts, poly ethyldiol modified amino resins: 10～20 parts, celluosic resin: 10～15 parts, poly-
Dimethyl siloxane: 5～10 parts, deionized water: 30～50 parts, nano tin dioxide: 5～10 parts, titanate coupling agent: 10～15
Part, isopropanol: 5～10 parts, aqueous monomers: 10～20 parts, pH nertralizer: 5～10 parts, cosolvent: 1～5 part, wetting and dispersing
Agent: 0.1～0.5 part, defoamer: 1～5 part, thickening agent: 0.5～1 part, emulsifying agent: 0.1～1 part, color stuffing: 10～20 parts.
Further, described baking vanish includes the composition of following weight portion: modifying epoxy resin by organosilicon: 40～50 parts, poly-second
Glycol modification amino resins: 15～20 parts, celluosic resin: 10～13 parts, polydimethylsiloxane: 6～10 parts, deionization
Water: 40～50 parts, nano tin dioxide: 5～8 parts, titanate coupling agent: 12～15 parts, isopropanol: 7～10 parts, aqueous monomers:
10～15 parts, pH nertralizer: 5～8 parts, cosolvent: 1～3 part, wetting dispersing agent: 0.1～0.3 part, defoamer: 2～5 parts, increase
Thick dose: 0.5～0.8 part, emulsifying agent: 0.1～0.5 part, color stuffing: 15～20 parts.
Preferably, modifying epoxy resin by organosilicon: 50 parts, poly ethyldiol modified amino resins: 15 parts, celluosic resin:
13 parts, polydimethylsiloxane: 8 parts, deionized water: 40 parts, nano tin dioxide: 7 parts, titanate coupling agent: 13 parts, isopropyl
Alcohol: 8 parts, aqueous monomers: 15 parts, pH nertralizer: 6 parts, cosolvent: 2 parts, wetting dispersing agent: 0.2 part, defoamer: 3 parts, thickening
Agent: 0.7 part, emulsifying agent: 0.5 part, color stuffing: 15 parts.
Separately, the preparation method of described modifying epoxy resin by organosilicon comprises the steps: the amino of 20～30 weight portions
The bisphenol A epoxide resin of silicone oil and 15～25 weight portions is dissolved in 30～40 pbw acetone, with 200～300r/min turn
Speed stirring 20～30min, is warming up to 110～130 DEG C, reacts 2～3h, and after reaction terminates, acetone is removed in decompression distillation, then will
Modified resin and the diaminourea-hexichol-methane blended to 5～10 weight portions, the rotating speed with 100～200r/min stir 10～
20min, is dried, is cooled to room temperature, obtains described modifying epoxy resin by organosilicon.
Separately having, described poly ethyldiol modified amino resins preparation method comprises the steps: to take 20～30 weight portion urea aldehyde
Resin, regulation pH value to 9～10, is heated to 65～70 DEG C, adds 3～6 weight portion tripolycyanamide, and keeping pH value is 9～10, rises
Temperature, to 80～90 DEG C, is reacted 1～2 hour, adds 1～3 weight portion Polyethylene Glycol, at 80～90 DEG C, reacts 3～5 hours,
Distill 1～3 hour at 75～80 DEG C, be dried, cool down, obtain described poly ethyldiol modified amino resins.
Again, described emulsifying agent is ethyoxyl 2, 2-Oxydiphenol ammonium sulfate, NPE or allyl ether hydroxypropyl sulfonic acid
Sodium.
Further, described pH nertralizer is selected from triethylamine, 2-amino-2-methyl-1-propanol, triethanolamine, diethanolamine, N,
One in N-dimethylethanolamine, ammonia.
And, described cosolvent is selected from isopropanol, sec-butyl alcohol, normal propyl alcohol, butyl glycol ether, propylene glycol monomethyl ether, propylene glycol third
Ether, dipropylene glycol methyl ether, n-butyl alcohol, ethylene glycol monomethyl ether, propandiol butyl ether, diethylene glycol dimethyl ether, propylene glycol methyl ether acetate, two
One or more in propandiol butyl ether, glycol methyl ether acetate.
Separately, described aqueous monomers is dihydromethyl propionic acid, trimellitic anhydride, dimethylolpropionic acid, M-phthalic acid-5-sulphur
Acid sodium, p-phthalic acid-2-sodium sulfonate, p-phthalic acid-2-Sulfonic Lithium or a carboxyl benzene sulfonate.
Meanwhile, the present invention also provides for the preparation method of a kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish, including such as
Lower step:
1) master grind
Dispersion machine adds 20～30 parts of modifying epoxy resin by organosilicon, 0.5～2 part of cosolvent, 10～20 parts go from
Sub-water, pH nertralizer, wetting dispersing agent and defoamer, be uniformly dispersed with the rotating speed of 500～800r/min, jitter time 5
～10min, add titanium dioxide, grinding temperature 40～50 DEG C, grind 3～6min, until fineness is 10～20 μm, filter Dry Sack
Slurry, standby；
2) mixing paint:
Take 20～30 parts of nano-TiOs2Acrylic resin modified, celluosic resin, poly ethyldiol modified amino resins, poly-two
Methylsiloxane, 0.5～3 part of cosolvent, 20～30 parts of deionized waters, nano tin dioxide, titanate coupling agent, isopropanol, breasts
Agent and thickening agent, disperse under the rotating speed of 500～600r/min, disperses 3～5min, after being uniformly dispersed, adds step
1) gained mill base, regulation pH value, to 7～8, filters with 80～120 mesh filter screens, and packaging i.e. obtains described high abrasion adhesive force and changes by force
Property epoxy amino baking vanish.
The beneficial effects of the present invention is:
Described baking vanish is using modifying epoxy resin by organosilicon and poly ethyldiol modified amino resins as epoxy amino baking vanish
Main component, modified epoxy resin and amino resins can effectively promote hardness of paint film, and constituent is reasonable in design, with go from
Sub-water is that solvent is diluted, environmentally friendly, improves anti-wear performance, and adhesive force is strong, ductility is good, high temperature resistant, use the longevity
Life is long, uses roller coat to replace spraying, be effectively improved production environment during coating, and beneficially workman is healthy.
Hardness Barcol improves 20～30%, and heat distortion temperature improves 20～30%, and impact strength promotes 70～80%,
Modified acrylic resin and amino resins can effectively promote hardness of paint film, and constituent is reasonable in design, environmentally friendly, carries
High-wear resistance, has higher thermostability, adhesive force, moisture resistance and insulating properties, and has the performances such as chemically-resistant gas attack, is coated with
Using roller coat to replace spraying when covering, be effectively improved production environment, beneficially workman is healthy.
The roller coating technology replacement spraying coating process that roller coat molding is quick-drying, during application, the availability of baking vanish can reach more than 90%,
Decrease the volatilization in air and waste, effectively reduce the VOCs, VOCs in roller coat workshop causing baking vanish volatilization to be formed because of spraying
Discharge capacity≤420ppm, baking vanish environment protecting is good.
Detailed description of the invention
Below by specific embodiment, the present invention is described further, but embodiment is not limiting as the protection of the present invention
Scope.
A kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish provided by the present invention, described baking vanish includes following weight
The composition of part: modifying epoxy resin by organosilicon: 40～60 parts, poly ethyldiol modified amino resins: 10～20 parts, cellulose tree
Fat: 10～15 parts, polydimethylsiloxane: 5～10 parts, deionized water: 30～50 parts, nano tin dioxide: 5～10 parts, metatitanic acid
Ester coupling agent: 10～15 parts, isopropanol: 5～10 parts, aqueous monomers: 10～20 parts, pH nertralizer: 5～10 parts, cosolvent: 1
～5 parts, wetting dispersing agent: 0.1～0.5 part, defoamer: 1～5 part, thickening agent: 0.5～1 part, emulsifying agent: 0.1～1 part, face
Filler: 10～20 parts.
Further, described baking vanish includes the composition of following weight portion: modifying epoxy resin by organosilicon: 40～50 parts, poly-second
Glycol modification amino resins: 15～20 parts, celluosic resin: 10～13 parts, polydimethylsiloxane: 6～10 parts, deionization
Water: 40～50 parts, nano tin dioxide: 5～8 parts, titanate coupling agent: 12～15 parts, isopropanol: 7～10 parts, aqueous monomers:
10～15 parts, pH nertralizer: 5～8 parts, cosolvent: 1～3 part, wetting dispersing agent: 0.1～0.3 part, defoamer: 2～5 parts, increase
Thick dose: 0.5～0.8 part, emulsifying agent: 0.1～0.5 part, color stuffing: 15～20 parts.
Preferably, modifying epoxy resin by organosilicon: 50 parts, poly ethyldiol modified amino resins: 15 parts, celluosic resin:
13 parts, polydimethylsiloxane: 8 parts, deionized water: 40 parts, nano tin dioxide: 7 parts, titanate coupling agent: 13 parts, isopropyl
Alcohol: 8 parts, aqueous monomers: 15 parts, pH nertralizer: 6 parts, cosolvent: 2 parts, wetting dispersing agent: 0.2 part, defoamer: 3 parts, thickening
Agent: 0.7 part, emulsifying agent: 0.5 part, color stuffing: 15 parts.
Separately, the preparation method of described modifying epoxy resin by organosilicon comprises the steps: the amino of 20～30 weight portions
The bisphenol A epoxide resin of silicone oil and 15～25 weight portions is dissolved in 30～40 pbw acetone, with 200～300r/min turn
Speed stirring 20～30min, is warming up to 110～130 DEG C, reacts 2～3h, and after reaction terminates, acetone is removed in decompression distillation, then will
Modified resin and the diaminourea-hexichol-methane blended to 5～10 weight portions, the rotating speed with 100～200r/min stir 10～
20min, is dried, is cooled to room temperature, obtains described modifying epoxy resin by organosilicon.
Separately having, described poly ethyldiol modified amino resins preparation method comprises the steps: to take 20～30 weight portion urea aldehyde
Resin, regulation pH value to 9～10, is heated to 65～70 DEG C, adds 3～6 weight portion tripolycyanamide, and keeping pH value is 9～10, rises
Temperature, to 80～90 DEG C, is reacted 1～2 hour, adds 1～3 weight portion Polyethylene Glycol, at 80～90 DEG C, reacts 3～5 hours,
Distill 1～3 hour at 75～80 DEG C, be dried, cool down, obtain described poly ethyldiol modified amino resins.
Again, described emulsifying agent is ethyoxyl 2, 2-Oxydiphenol ammonium sulfate, NPE or allyl ether hydroxypropyl sulfonic acid
Sodium.
Further, described pH nertralizer is selected from triethylamine, 2-amino-2-methyl-1-propanol, triethanolamine, diethanolamine, N,
One in N-dimethylethanolamine, ammonia.
And, described cosolvent is selected from isopropanol, sec-butyl alcohol, normal propyl alcohol, butyl glycol ether, propylene glycol monomethyl ether, propylene glycol third
Ether, dipropylene glycol methyl ether, n-butyl alcohol, ethylene glycol monomethyl ether, propandiol butyl ether, diethylene glycol dimethyl ether, propylene glycol methyl ether acetate, two
One or more in propandiol butyl ether, glycol methyl ether acetate.
Separately, described aqueous monomers is dihydromethyl propionic acid, trimellitic anhydride, dimethylolpropionic acid, M-phthalic acid-5-sulphur
Acid sodium, p-phthalic acid-2-sodium sulfonate, p-phthalic acid-2-Sulfonic Lithium or a carboxyl benzene sulfonate.
Meanwhile, the present invention also provides for the preparation method of a kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish, including such as
Lower step:
1) master grind
Dispersion machine adds 20～30 parts of modifying epoxy resin by organosilicon, 0.5～2 part of cosolvent, 10～20 parts go from
Sub-water, pH nertralizer, wetting dispersing agent and defoamer, be uniformly dispersed with the rotating speed of 500～800r/min, jitter time 5
～10min, add titanium dioxide, grinding temperature 40～50 DEG C, grind 3～6min, until fineness is 10～20 μm, filter Dry Sack
Slurry, standby；
2) mixing paint:
Take 20～30 parts of nano-TiOs2Acrylic resin modified, celluosic resin, poly ethyldiol modified amino resins, poly-two
Methylsiloxane, 0.5～3 part of cosolvent, 20～30 parts of deionized waters, nano tin dioxide, titanate coupling agent, isopropanol, breasts
Agent and thickening agent, disperse under the rotating speed of 500～600r/min, disperses 3～5min, after being uniformly dispersed, adds step
1) gained mill base, regulation pH value, to 7～8, filters with 80～120 mesh filter screens, and packaging i.e. obtains described high abrasion adhesive force and changes by force
Property epoxy amino baking vanish.
Wherein, table 1 is high abrasion adhesive force strong modified epoxy amino-stoving varnish composition row a kind of described in various embodiments of the present invention
Table.Table 2 is poly ethyldiol modified ammonia in high abrasion adhesive force strong modified epoxy amino-stoving varnish a kind of described in various embodiments of the present invention
The ingredient lists of base resin.Table 3 is in high abrasion adhesive force strong modified epoxy amino-stoving varnish a kind of described in various embodiments of the present invention
The ingredient lists of modifying epoxy resin by organosilicon.Table 4 is high abrasion adhesive force a kind of described in various embodiments of the present invention modified ring by force
Oxygen amino-stoving varnish performance parameter list.
Table 1 (unit: weight portion)
Table 2 (unit: weight is divided)
Table 3 (unit: weight is divided)
Table 4
High abrasion adhesive force strong modified epoxy amino-stoving varnish a kind of described in the embodiment of the present invention is coated by roll coating model,
At 200 DEG C after solidification, it is cooled to room temperature, places 48 hours, measure slab face coat performance as shown in table 4.Wherein, resistance to punching
Hit the performance test methods method measuring paint film impact resistance with reference to standard GB/T/T1732-93 regulation, with fixing matter
The weight of amount (1kg) falls within the maximum height (cm) not causing paint film to destroy on test plate (panel) and represents paint film impact resistance.
Using a kind of high abrasion adhesive force strong modified epoxy amino-stoving varnish provided by the present invention, the curved performance of T is up to 1T.Roasting
Paint utilization rate is high, and every 30 kilograms of baking vanish can 1 ton of slab of application.Do not ftracture under 230 DEG C of high temperature, invariant color, ageing resistance is strong,
It is placed on outdoor consecutive sunlight 10～not yellowing, invariant color in 15 years.Acidproof corrosion resistance is strong, and the product that roller coat is good is put into 85
Boil in DEG C water that 2H is raw is progressively heated at 100 DEG C again, product without variable color, fall paint, bubble.At normal temperatures with 5% Nad solution soaking
After 24H, product surface non-corroding, variable color and coating come off.Pure cotton cloth is dipped in full 95% ethanol and wraps on 500g counterweight, with every point
The stroke of speed (20mm) left and right that clock is 40-60 time wipes 50 circulations at product surface, without fading removing oil.After drying varniss,
Using 4H pencil with the strength of pressure at right angle 1 kilogram, 45 ° of oblique angles draw 3CM length at paint film, and 5 times, paint film does not has cut, paint film
Hardness is up to 4H.
It should be noted that above example is only in order to illustrate technical scheme and unrestricted.Although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the technology of invention
Scheme is modified or equivalent, and without deviating from the scope of technical solution of the present invention, it all should contain the power in the present invention
In profit claimed range.
Claims (10)
1. a high abrasion adhesive force strong modified epoxy amino-stoving varnish, it is characterised in that described baking vanish includes following weight portion
Composition:
Modifying epoxy resin by organosilicon: 40 ~ 60 parts, poly ethyldiol modified amino resins: 10 ~ 20 parts, celluosic resin: 10 ~ 15
Part, polydimethylsiloxane: 5 ~ 10 parts, deionized water: 30 ~ 50 parts, nano tin dioxide: 5 ~ 10 parts, titanate coupling agent: 10 ~
15 parts, isopropanol: 5 ~ 10 parts, aqueous monomers: 10 ~ 20 parts, pH nertralizer: 5 ~ 10 parts, cosolvent: 1 ~ 5 part, wetting dispersing agent:
0.1 ~ 0.5 part, defoamer: 1 ~ 5 part, thickening agent: 0.5 ~ 1 part, emulsifying agent: 0.1 ~ 1 part, color stuffing: 10 ~ 20 parts.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described baking vanish bag
Include the composition of following weight portion: modifying epoxy resin by organosilicon: 40 ~ 50 parts, poly ethyldiol modified amino resins: 15 ~ 20 parts, fine
Dimension element resin: 10 ~ 13 parts, polydimethylsiloxane: 6 ~ 10 parts, deionized water: 40 ~ 50 parts, nano tin dioxide: 5 ~ 8 parts, metatitanic acid
Ester coupling agent: 12 ~ 15 parts, isopropanol: 7 ~ 10 parts, aqueous monomers: 10 ~ 15 parts, pH nertralizer: 5 ~ 8 parts, cosolvent: 1 ~ 3 part,
Wetting dispersing agent: 0.1 ~ 0.3 part, defoamer: 2 ~ 5 parts, thickening agent: 0.5 ~ 0.8 part, emulsifying agent: 0.1 ~ 0.5 part, color stuffing: 15
~ 20 parts.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that organic-silicon-modified
Epoxy resin: 50 parts, poly ethyldiol modified amino resins: 15 parts, celluosic resin: 13 parts, polydimethylsiloxane: 8 parts, go
Ionized water: 40 parts, nano tin dioxide: 7 parts, titanate coupling agent: 13 parts, isopropanol: 8 parts, aqueous monomers: 15 parts, pH neutralizes
Agent: 6 parts, cosolvent: 2 parts, wetting dispersing agent: 0.2 part, defoamer: 3 parts, thickening agent: 0.7 part, emulsifying agent: 0.5 part, face is filled out
Material: 15 parts.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described organosilicon
The preparation method of modified epoxy comprises the steps: the amido silicon oil of 20 ~ 30 weight portions and the bis-phenol of 15 ~ 25 weight portions
A epoxy resin is dissolved in 30 ~ 40 pbw acetone, stirs 20 ~ 30min with the rotating speed of 200 ~ 300r/min, it is warming up to 110 ~
130 DEG C, reacting 2 ~ 3h, after reaction terminates, acetone is removed in decompression distillation, then by modified resin and the diamino to 5 ~ 10 weight portions
Base-hexichol-methane blended, stirs 10 ~ 20min with the rotating speed of 100 ~ 200r/min, is dried, is cooled to room temperature, obtains described organic
Silicon modified epoxy resin.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described poly-second two
Alcohol modified aminoresin preparation method comprises the steps: to take 20 ~ 30 weight portion Lauxites, and regulation pH value, to 9 ~ 10, heats
To 65 ~ 70 DEG C, adding 3 ~ 6 weight portion tripolycyanamide, keeping pH value is 9 ~ 10, is warming up to 80 ~ 90 DEG C, reacts 1 ~ 2 hour, adds
1 ~ 3 weight portion Polyethylene Glycol, at 80 ~ 90 DEG C, reacts 3 ~ 5 hours, distills 1 ~ 3 hour at 75 ~ 80 DEG C, is dried, cools down,
Described poly ethyldiol modified amino resins.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described emulsifying agent
For ethyoxyl 2, 2-Oxydiphenol ammonium sulfate, NPE or allyl ether hydroxypropyl azochlorosulfonate acid sodium.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described pH neutralizes
Agent is selected from triethylamine, 2-amino-2-methyl-1-propanol, triethanolamine, diethanolamine, N, in N-dimethylethanolamine, ammonia
A kind of.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described cosolvent
Selected from isopropanol, sec-butyl alcohol, normal propyl alcohol, butyl glycol ether, propylene glycol monomethyl ether, propylene glycol propyl ether, dipropylene glycol methyl ether, positive fourth
Alcohol, ethylene glycol monomethyl ether, propandiol butyl ether, diethylene glycol dimethyl ether, propylene glycol methyl ether acetate, dipropylene, ethylene glycol first
One or more in ether acetate.
High abrasion adhesive force the most according to claim 1 strong modified epoxy amino-stoving varnish, it is characterised in that described aqueous list
Body is dihydromethyl propionic acid, trimellitic anhydride, dimethylolpropionic acid, 5-sodium sulfo isophthalate, p-phthalic acid-2-sulphur
Acid sodium, p-phthalic acid-2-Sulfonic Lithium or a carboxyl benzene sulfonate.
10. the preparation according to the high abrasion adhesive force strong modified epoxy amino-stoving varnish according to any one of claim 1 ~ 9
Method, it is characterised in that comprise the steps:
1) master grind
20 ~ 30 parts of modifying epoxy resin by organosilicon, 0.5 ~ 2 part of cosolvent, 10 ~ 20 parts of deionized waters, pH are added in dispersion machine
Nertralizer, wetting dispersing agent and defoamer, be uniformly dispersed with the rotating speed of 500 ~ 800r/min, and jitter time 5 ~ 10min adds
Enter titanium dioxide, grinding temperature 40 ~ 50 DEG C, grind 3 ~ 6min, until fineness is 10 ~ 20 μm, filter to obtain mill base, standby；
2) mixing paint:
Take 20 ~ 30 parts of nano-TiOs2Acrylic resin modified, celluosic resin, poly ethyldiol modified amino resins, poly dimethyl silicon
Oxygen alkane, 0.5 ~ 3 part of cosolvent, 20 ~ 30 parts of deionized waters, nano tin dioxide, titanate coupling agent, isopropanol, emulsifying agent and increasing
Thick dose, disperse under the rotating speed of 500 ~ 600r/min, disperse 3 ~ 5min, after being uniformly dispersed, add step 1) gained mill base,
Regulation pH value, to 7 ~ 8, filters with 80 ~ 120 mesh filter screens, packaging, i.e. obtains described high abrasion adhesive force strong modified epoxy amino and bakes
Paint.
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| CN201610504675.9A CN106047064A (en) | 2016-07-01 | 2016-07-01 | High-wear-resistance high-adhesive-force modified epoxy amino baking varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107189645A (en) * | 2017-07-14 | 2017-09-22 | 湖南帝京环保新材料有限公司 | Coating for electrostatic spraying polypropylene material car insurance bar and preparation method thereof |
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| CN108610893A (en) * | 2018-05-10 | 2018-10-02 | 诸城市福日机械有限公司 | A kind of automobile axle dipping lacquer |
| CN113088144A (en) * | 2021-03-05 | 2021-07-09 | 广东呈美化学材料有限公司 | Low-temperature curing water-based amino baking varnish coating applied to metal and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189645A (en) * | 2017-07-14 | 2017-09-22 | 湖南帝京环保新材料有限公司 | Coating for electrostatic spraying polypropylene material car insurance bar and preparation method thereof |
| CN107936705A (en) * | 2017-11-27 | 2018-04-20 | 德阳天赐塑胶有限责任公司 | A kind of strong plastic part Special wear-resistant paint of water-resistance and its preparation process |
| CN108610893A (en) * | 2018-05-10 | 2018-10-02 | 诸城市福日机械有限公司 | A kind of automobile axle dipping lacquer |
| CN113088144A (en) * | 2021-03-05 | 2021-07-09 | 广东呈美化学材料有限公司 | Low-temperature curing water-based amino baking varnish coating applied to metal and preparation method thereof |
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Application publication date: 20161026 |