CN107522851A - A kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish of preparation - Google Patents
A kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish of preparation Download PDFInfo
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- CN107522851A CN107522851A CN201710934779.8A CN201710934779A CN107522851A CN 107522851 A CN107522851 A CN 107522851A CN 201710934779 A CN201710934779 A CN 201710934779A CN 107522851 A CN107522851 A CN 107522851A
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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Abstract
The present invention relates to technical field of coatings, more particularly, to a kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish of preparation, technical problem to be solved is to provide a kind of economic and environment-friendly, high and low viscosity of solid content, high gloss, high rigidity, anti-pollution, the economic and environment-friendly aqueous alkide resin that ageing-resistant, rate of drying is fast, richness is good and its amino plastic baking varnish of preparation, the technical scheme used for：It is mainly formulated by following raw material by following percentage by weight：Gutter oil 25% 35%, waster terylene 10% 25%, polyacid 10% 20%, polyalcohol 10% 20%, metallic catalyst 0.01% 0.02%, trimellitic anhydride 6% 12%, tertiary carbonic acid glycidyl ester E10p 10% 15%, nertralizer 1% 5%.
Description
Technical field
The present invention relates to technical field of coatings, more particularly, to a kind of economic and environment-friendly aqueous alkide resin and its ammonia of preparation
Base resin baking vanish.
Background technology
The raw material sources of alkyd resin are abundant, cheap, function admirable, thus it has been obtained extensively in coatings industry
Using being one of maximum synthetic resin of current China's yield.In addition, the developing history of alkyd resin is long, synthesis technique ten
Divide stabilization, contain substantial amounts of hydroxyl, carboxyl, carbon-carbon double bond isoreactivity group in molecule, there is very good modification potential, extensively
It is general to be applied to woodcare paint, metal baking finish etc..Before the 1970s, alkyd resin and alkyd are adjusted in the product of China's coating
Occupy 70-80% share with paint highest, in the increasingly fierce Coating Market of market competition today, produce cost-effective low
Cost resin is increasingly urgent to coating cost control, and with the improvement of living standards, requirement of the people to quality of life also day
It is beneficial strict, mitigate environmental pollution, it is also imperative to be produced as the coating products of living environment Reduction of Students' Study Load.
However, there is some shortcomings for alkyd resin：Drying varniss is slow, hardness is low, poor water resistance, corrosion-resistant,
Weatherability is bad etc., also exists for aqueous alkide resin bin stability is bad the shortcomings that, so drawing in alkyd resin
Enter ammonia ester bond, equivalent to one hard segment structure of introducing on alkyd backbone so that alkyd resin has with polyurethanes seemingly
Soft hard segment structure, can be very good to improve the mechanical performance and drying property of alkyd resin, the degree of cross linking of system can be improved, from
And improve hardness, water resistance, solvent resistance, heat resistance and reduction water absorption rate of paint film etc..But due in aqueous alkide resin
Containing substantial amounts of ester bond and aqueous medium, under conditions of with the presence of water and slant acidity or meta-alkalescence, ester bond is all susceptible to hydrolysis, from
And make it that the bin stability of aqueous alkide resin is bad, and limit the application of water alcohol acid amino-stoving varnish.
The content of the invention
Present invention solves the technical problem that it is to provide a kind of economic and environment-friendly, high and low viscosity of solid content, high gloss, height
Hardness, anti-pollution, the economic and environment-friendly aqueous alkide resin that ageing-resistant, rate of drying is fast, richness is good and its amino tree of preparation
Fat baking vanish.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of economic and environment-friendly water alcohol acid tree
Fat and its amino plastic baking varnish of preparation, it is mainly formulated by following raw material by following percentage by weight：Gutter oil 25%-
35%, waster terylene 10%-25%, polyacid 10%-20%, polyalcohol 10%-20%, metallic catalyst 0.01%-0.02%, trimellitic acid
Acid anhydride 6%-12%, tertiary carbonic acid glycidyl ester E10p 10%-15%, nertralizer 1%-5%.
Polyalcohol of the present invention is one in glycerine, ethylene glycol, trimethylolpropane, neopentyl glycol and pentaerythrite
Kind is two or more.
Polyacid of the present invention be M-phthalic acid, terephthalic acid (TPA), phthalic anhydride, isophthalic anhydride,
It is more than one or both of terephthalic anhydride, maleic anhydride, HHPA and THPA.
Metallic catalyst of the present invention is in lithium hydroxide, sodium hypophosphite, calcium hydroxide, zinc oxide and calcium oxide
It is one or more kinds of.
Nertralizer of the present invention is triethylamine, N, more than one or both of N- dimethylethanolamines and ammoniacal liquor.
A kind of economic and environment-friendly aqueous alkide resin preparation method of the present invention, comprises the following steps：
1. alcoholysis：Gutter oil, waster terylene, polyalcohol, metallic catalyst are added in reactor according to parts by weight successively, heated up
To 280 DEG C, 40-90min is reacted, after alcoholysis is qualified, starts to cool, is down to 150 DEG C；
2. it is esterified：At 150 DEG C, polyacid is added in reactor, is progressively warming up to 240 DEG C, adds refluxing toluene reaction 90-
120min, until when system acid number is 10 mgKOH/g, start to cool；
3. neutralize：At 145 DEG C, trimellitic anhydride is added in reactor, 170~180 DEG C of reactions is heated to, adds versatic acid
Ethylene oxidic ester, insulation reaction to acid number is up to 40~50mgKOH/g；Toluene solvant is removed, adds propandiol butyl ether, stirring is equal
It is even, regulation solid content to 60~80%, less than 600 DEG C are cooled to, add nertralizer, be neutralized to pH value ＞ 8, produce economic and environment-friendly
Aqueous alkide resin.
Step 1. described in alcoholysis it is qualified be to test by the following method：1mL alcoholysis products are taken, take the 9mL mass concentrations to be
87% ethanol mixing, is swayed uniformly, and drop keeps transparent more than 20min qualified for alcoholysis on a glass.
Present invention also offers a kind of application of economic and environment-friendly aqueous alkide resin, by described economic and environment-friendly water alcohol acid
Resin is applied to prepare economic and environment-friendly water alcohol acid amino plastic baking varnish.
A kind of economic and environment-friendly water alcohol acid amino plastic baking varnish of the present invention, it is mainly by following raw material by following heavy
Amount percentage is formulated：Economic and environment-friendly aqueous alkide resin 70%-80%, amino resins 20%-40%, defoamer 0.5%-1%, point
Powder 0.5%-1%, wetting agent 0.5%-1%, pigment 5%-15%.
Amino resins of the present invention is Amino resin, butylated amino resin, the high imino group trimerization of methyl-etherified
At least one of melamine resin.
Defoamer of the present invention is acetylenic diols defoamer and/or organic silicon defoamer.
Dispersant B YK-190 or BYK-191 of the present invention.
Wetting agent of the present invention is Disperbyk-181.
Pigment of the present invention is one kind or any several ratios in titanium dioxide, You Jilan, iron oxide red, permanent yellow or carbon black
The combination of example.
A kind of economic and environment-friendly water alcohol acid amino plastic baking varnish preparation method of the present invention, comprises the following steps：Will
Pigment grind to fineness is less than 30 microns, adds economic and environment-friendly aqueous alkide resin, amino resins, defoamer, dispersant with
Wetting agent mixes, and adds water to adjust and produces economic and environment-friendly water alcohol acid amino plastic baking varnish.
As described above, the present invention has an advantageous effect in that compared with prior art：
1st, economical and energy saving：The present invention efficiently solves gutter oil caused by some food factories and daily life and terylene textile mills
Caused waster terylene is difficult, difficult recovery problem, turns waste into wealth, and has both reduced industry waste, environmental pollution, has been greatly lowered again
The cost of coating；
2nd, the present invention uses the carboxyl reaction in the imino group and aqueous polyurethane in the high imino group melmac of methyl-etherified,
Successfully the high imino group melmac of methyl-etherified is linked into aqueous polyurethane, increases the degree of cross linking of system so that tree
Fat hardness of paint film improves, and water resistance, solvent resistance, heat resistance strengthen, and water absorption rate reduces, tensile strength enhancing；
3rd, solid content is high, and viscosity is low：Using economic and environment-friendly type alkyd resin made from special formulation of the present invention and method
In the case where ensureing that viscosity is low, rheological characteristic is good, there is very high solid content, make production efficiency height, cost of transportation low, dry
Hurry up, energy consumption it is low；
4th, hardness height, good toughness, grinability are good：The economic and environment-friendly aqueous alkide resin of the present invention and its amino resins of preparation are baked
Paint ensure that paint film has certain hardness and grinability, with the sand paper polishing not scab paper of 800 mesh, easily polish；
5th, safety and environmental protection：The economic and environment-friendly aqueous alkide resin of the present invention and its green that the amino plastic baking varnish of preparation is water-based
Environment-friendly products, it is free of formaldehyde, and the noxious material such as free TDI and dimethylbenzene, it will not make during production process and use
Damaged into environmental pollution and human body.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish preparation process of preparation are as follows：
1. prepare a kind of economic and environment-friendly aqueous alkide resin：
Successively 422.9g gutter oils, 198.5g waster terylenes, 44.8g rosin, 17.6g benzoic acid, 79.3g terephthalic acid (TPA)s,
0.2g lithium hydroxides, are added in reactor, are warming up to 280 DEG C, react 40-90min, start to cool after alcoholysis is qualified, drop
To 150 DEG C；149.3g trimethylolpropanes are added, 60.7g glycerine, are warming up to 240 DEG C, add 68.3g refluxing toluenes reaction 90-
120min, until when system acid number is 10 mgKOH/g, start to be cooled at 145 DEG C, add 121.3g trimellitic anhydrides, heating
To 170~180 DEG C of reactions, 200.5g tertiary carbonic acid glycidyl esters are added, insulation reaction to acid number is up to 40~50mgKOH/g；It is de-
Except toluene solvants, 340g propandiol butyl ethers are added, are stirred, regulation solid content to 60~80%, be cooled to less than 600 DEG C,
Nertralizer is added, pH value ＞ 8 is neutralized to, produces economic and environment-friendly aqueous alkide resin；
2. prepare a kind of economic and environment-friendly water alcohol acid amino plastic baking varnish：
5g titanium dioxides are ground to fineness as less than 30 microns, add the economic and environment-friendly aqueous alkide resins of 40g, 20g methyl-etherified ammonia
Base resin, 0.5g organic silicon defoamers, 0.5g BYK-190 and 0.5g Disperbyk-181 are mixed, and add water adjustment i.e.
Obtain economic and environment-friendly water alcohol acid amino plastic baking varnish.
Embodiment 2
A kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish preparation process of preparation are as follows：
1. prepare a kind of economic and environment-friendly aqueous alkide resin：
Successively 472.7g gutter oils, 224.5g waster terylenes, 44.8g tetrahydrochysene acid anhydrides, 28.1g terephthalic anhydrides, 79.3g benzene first
Acid, 0.2g lithium hydroxides, is added in reactor, is warming up to 280 DEG C, reacts 40-90min, starts to cool after alcoholysis is qualified,
It is down to 150 DEG C；119.1g trimethylolpropanes are added, 40.7g pentaerythrites, are warming up to 240 DEG C, add 68.2g refluxing toluenes
90-120min is reacted, until when system acid number is 10 mgKOH/g, starts to be cooled at 145 DEG C, adds 91.3g trimellitic acids
Acid anhydride, be heated to 170~180 DEG C of reactions, add 200.4g tertiary carbonic acid glycidyl esters, insulation reaction to acid number up to 40~
50mgKOH/g；Toluene solvant is removed, 340.0g propandiol butyl ethers is added, stirs, regulation solid content to 60~80%, drop
Temperature adds nertralizer, is neutralized to pH value ＞ 8, produces economic and environment-friendly aqueous alkide resin to less than 600 DEG C；
2. prepare a kind of economic and environment-friendly water alcohol acid amino plastic baking varnish：
6g titanium dioxides are ground to fineness as less than 30 microns, add the economic and environment-friendly aqueous alkide resins of 50g, 25g methyl-etherifieds are high
Imino group melmac, 0.6g organic silicon defoamers, 0.6g BYK-190 and 0.6g Disperbyk-181 mixing are stirred
Mix, add water to adjust and produce economic and environment-friendly water alcohol acid amino plastic baking varnish.
Embodiment 3
A kind of economic and environment-friendly aqueous alkide resin and its amino plastic baking varnish preparation process of preparation are as follows：
1. prepare a kind of economic and environment-friendly aqueous alkide resin：
Successively 522.9g gutter oils, 202.5g waster terylenes, 54.8g M-phthalic acids, 34.6g maleic anhydrides, 99.0g hexahydrobenzenes
Acid anhydride, 0.3g sodium hypophosphites, is added in reactor, is warming up to 280 DEG C, reacts 40-90min, starts to cool after alcoholysis is qualified,
It is down to 150 DEG C；149g trimethylolpropanes are added, 50.7g neopentyl glycols, are warming up to 240 DEG C, it is anti-to add 98.2g refluxing toluenes
90-120min is answered, until when system acid number is 10 mgKOH/g, starts to be cooled at 145 DEG C, adds 132.5g trimellitic acids
Acid anhydride, 170~180 DEG C of reactions are heated to, add 200g tertiary carbonic acid glycidyl esters, insulation reaction to acid number is up to 40~50mgKOH/
g；Remove toluene solvant, add 460g propandiol butyl ethers, stir, regulation solid content to 60~80%, be cooled to 600 DEG C with
Under, nertralizer is added, pH value ＞ 8 is neutralized to, produces economic and environment-friendly aqueous alkide resin；
2. prepare a kind of economic and environment-friendly water alcohol acid amino plastic baking varnish：
6g permanent yellows are ground to fineness as less than 30 microns, add the economic and environment-friendly aqueous alkide resins of 60g, 30g methyl-etherified ammonia
Base resin, 0.7g organic silicon defoamers, 0.7g BYK-190 and 0.7g Disperbyk-181 are mixed, and add water adjustment i.e.
Obtain economic and environment-friendly water alcohol acid amino plastic baking varnish.
Embodiment 4
1. prepare a kind of economic and environment-friendly aqueous alkide resin：
Successively 392.9g gutter oils, 178.5g waster terylenes, 34.8g terephthalic acid (TPA)s, 15.6g phthalic anhydrides, 69.3g tetra-
Hydrogen phthalic anhydride, 0.2g sodium hypophosphites, is added in reactor, is warming up to 280 DEG C, reacts 40-90min, starts after alcoholysis is qualified
Cooling, is down to 150 DEG C；109.1g trimethylolpropanes are added, 30.7g ethylene glycol, are warming up to 240 DEG C, 58.1g toluene is added and returns
Stream reaction 90-120min, until when system acid number is 10 mgKOH/g, starts to be cooled at 145 DEG C, adds the inclined benzene three of 81.5g
Acid anhydrides, be heated to 170~180 DEG C of reactions, add 200g tertiary carbonic acid glycidyl esters, insulation reaction to acid number up to 40~
50mgKOH/g；Toluene solvant is removed, 320.5g propandiol butyl ethers is added, stirs, regulation solid content to 60~80%, drop
Temperature adds nertralizer, is neutralized to pH value ＞ 8, produces economic and environment-friendly aqueous alkide resin to less than 600 DEG C；
2. prepare a kind of economic and environment-friendly water alcohol acid amino plastic baking varnish：
The organic indigo plants of 6g are ground to fineness as less than 30 microns, add the economic and environment-friendly aqueous alkide resins of 65g, 35g methyl-etherifieds are high
Imino group melmac, 0.7g organic silicon defoamers, 0.7g BYK-190 and 0.7g Disperbyk-181 mixing are stirred
Mix, add water to adjust and produce economic and environment-friendly water alcohol acid amino plastic baking varnish.
Embodiment 5
1. prepare a kind of economic and environment-friendly aqueous alkide resin：
Successively 458.1g gutter oils, 213.5g waster terylenes, 56.8g phthalic acids, 27.6g HHPAs, 89.3g tetrahydrochysene benzene
Acid anhydride, 0.2g sodium hydroxides, is added in reactor, is warming up to 280 DEG C, reacts 40-90min, starts to cool after alcoholysis is qualified,
It is down to 150 DEG C；109.6g trimethylolpropanes are added, 50.5g pentaerythrites, are warming up to 240 DEG C, add 58.9g refluxing toluenes
90-120min is reacted, until when system acid number is 10 mgKOH/g, starts to be cooled at 145 DEG C, adds 91.35g trimellitic acids
Acid anhydride, 170~180 DEG C of reactions are heated to, add 200g tertiary carbonic acid glycidyl esters, insulation reaction to acid number is up to 40~50mgKOH/
g；Toluene solvant is removed, 350.5g propandiol butyl ethers is added, stirs, regulation solid content is cooled to 600 DEG C to 60~80%
Hereinafter, nertralizer is added, pH value ＞ 8 is neutralized to, produces economic and environment-friendly aqueous alkide resin；
2. prepare a kind of economic and environment-friendly water alcohol acid amino plastic baking varnish：
7g iron oxide reds are ground to fineness as less than 30 microns, add the economic and environment-friendly aqueous alkide resins of 70g, 40g fourth etherified aminos
Resin, 0.8g organic silicon defoamers, 0.8g BYK-190 and 0.8g Disperbyk-181 are mixed, are added water to adjust and produce
Economic and environment-friendly water alcohol acid amino plastic baking varnish.
Above-described embodiment concrete outcome is as shown in table 1.
The economic and environment-friendly alcohol acid amido resin baking vanish quality and technical index testing result of table 1
| Detection project | Detection method | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Surface drying time/min | GB/T1728-1979（89）Second method | 25 | 24 | 24 | 25 | 24 |
| Real surface drying time/h | GB/T1728-1979（89）First method | 2 | 2 | 2 | 2 | 2 |
| Solid content % | GB/T1725-1989 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 |
| Hardness | GB6739-1996 | H | H | H | H | H |
| Adhesive force | GB/T9286-1998 | It is good | It is good | It is good | It is good | It is good |
| Impact resistance | GB/T1732-1993 | 50 | 50 | 50 | 50 | 50 |
| Salt spray resistance/h | GB/T1771-91 | 550 | 540 | 560 | 555 | 510 |
| Wearability | HG/T3828-2006 | It is good | It is good | It is good | It is good | It is good |
| Damage resistant（100g） | HG/T3828-2006 | Do not scratch | Do not scratch | Do not scratch | Do not scratch | Do not scratch |
| Alcohol resistance | GB/T4893-1-2005 | It is good | It is good | It is good | It is good | It is good |
| Water resistance | GB/T4893-1-2005 | It is good | It is good | It is good | It is good | It is good |
| Alkali resistance | GB/T4893-1-2005 | It is good | It is good | It is good | It is good | It is good |
| Storage stability | GB/T6753.3-1986 | It is good | It is good | It is good | It is good | It is good |
| Pliability | GB/T1731-1993 | It is good | It is good | It is good | It is good | It is good |
| Gloss | GB/T954 | 93 | 94 | 94 | 95 | 93 |
| Richness | Range estimation | It is excellent | It is excellent | It is excellent | It is excellent | It is excellent |
From the economic and environment-friendly alcohol acid amido resin baking vanish quality and technical index testing result of table 1, economic ring of the present invention
Protecting alcohol acid amido resin baking vanish has good salt spray resistance, salt water resistance, weatherability, while has good richness, hard
Spend the characteristics such as height, good toughness, grinability be good.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.Therefore, nothing
By from the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and can not limit invention,
Claims indicate the scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention, therefore, with the present invention
The suitable implication and scope of claims in any change, be all considered as being included within the scope of the claims.
Claims (7)
- A kind of 1. economic and environment-friendly aqueous alkide resin, it is characterised in that：It is mainly matched somebody with somebody by following raw material by following percentage by weight System forms：Gutter oil 25%-35%, waster terylene 10%-25%, polyacid 10%-20%, polyalcohol 10%-20%, metallic catalyst 0.01%-0.02%, trimellitic anhydride 6%-12%, tertiary carbonic acid glycidyl ester E10p 10%-15%, nertralizer 1%-5%.
- A kind of 2. economic and environment-friendly aqueous alkide resin according to claim 1, it is characterised in that：Described polyalcohol is sweet It is more than one or both of oil, ethylene glycol, trimethylolpropane, neopentyl glycol and pentaerythrite.
- A kind of 3. economic and environment-friendly aqueous alkide resin according to claim 1, it is characterised in that：Between described polyacid is Phthalic acid, terephthalic acid (TPA), phthalic anhydride, isophthalic anhydride, terephthalic anhydride, maleic anhydride, HHPA With it is more than one or both of THPA.
- A kind of 4. economic and environment-friendly aqueous alkide resin according to claim 1, it is characterised in that：Described metallic catalyst More than one or both of lithium hydroxide, sodium hypophosphite, calcium hydroxide, zinc oxide and calcium oxide.
- A kind of 5. economic and environment-friendly aqueous alkide resin according to claim 1, it is characterised in that：The nertralizer is three second Amine, N, more than one or both of N- dimethylethanolamines and ammoniacal liquor.
- A kind of 6. economic and environment-friendly aqueous alkide resin preparation method according to claim any one of 1-5, it is characterised in that Comprise the following steps：1. alcoholysis：Gutter oil, waster terylene, polyalcohol, metallic catalyst are added in reactor according to parts by weight successively, heated up To 280 DEG C, 40-90min is reacted, after alcoholysis is qualified, starts to cool, is down to 150 DEG C；2. it is esterified：At 150 DEG C, polyacid is added in reactor, is progressively warming up to 240 DEG C, adds refluxing toluene reaction 90-120min, until when system acid number is 10 mgKOH/g, start to cool；3. neutralize：At 145 DEG C, trimellitic anhydride is added in reactor, 170~180 DEG C of reactions is heated to, adds versatic acid Ethylene oxidic ester, insulation reaction to acid number is up to 40~50mgKOH/g；Toluene solvant is removed, adds propandiol butyl ether, stirring is equal It is even, regulation solid content to 60~80%, less than 600 DEG C are cooled to, add nertralizer, be neutralized to pH value ＞ 8, produce economic and environment-friendly Aqueous alkide resin；Step 1. described in alcoholysis it is qualified be to test by the following method：1mL alcoholysis products are taken, it is 87% to take 9mL mass concentrations Ethanol mixing, sway uniformly, drop keep on a glass transparent more than 20min for alcoholysis it is qualified.
- A kind of 7. economic and environment-friendly water alcohol acid amino plastic baking varnish according to claim 6, it is characterised in that：It mainly by Following raw material is formulated by following percentage by weight：Economic and environment-friendly aqueous alkide resin 70%-80%, amino resins 20%-40%, Defoamer 0.5%-1%, dispersant 0.5%-1%, wetting agent 0.5%-1%, pigment 5%-15%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135520A (en) * | 2018-07-23 | 2019-01-04 | 泉州市三星精细化工有限公司 | A kind of water-based stoving paint and preparation method thereof using gutter oil production |
Citations (4)
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