CN106854275A - Water paint polyester resin and preparation method thereof outside a kind of weather resistant room - Google Patents
Water paint polyester resin and preparation method thereof outside a kind of weather resistant room Download PDFInfo
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- CN106854275A CN106854275A CN201611144832.6A CN201611144832A CN106854275A CN 106854275 A CN106854275 A CN 106854275A CN 201611144832 A CN201611144832 A CN 201611144832A CN 106854275 A CN106854275 A CN 106854275A
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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
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
- C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6886—Dicarboxylic acids and dihydroxy compounds
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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
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
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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
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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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
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
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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
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention provides a kind of preparation method of water paint polyester resin outside weather resistant room, reacted as raw material addition catalyst with dicarboxylic acids or its ester and dihydroxylic alcohols first, the equivalent proportion of alcohol acid reaction（1.1‑2.0）：1；Up to accessory substance collecting amount is more than the 95% of theoretical value, reaction temperature is between 180 270 DEG C, pressure is 1 1.5MPa for heat-insulation pressure keeping reaction in an inert atmosphere；Pressure is down to normal pressure in 0.5 1 hours, polycondensation catalyst and stabilizer is added, polycondensation reaction is carried out 16 hours, the polycondensation reaction temperature is 210 290 DEG C, and pressure is in below 500Pa；Inert gas to normal pressure is filled with, melt extrusion is cooled down into obtain water paint polyester outside weather resistant room.Water paint polyester resin outside weather resistant room of the invention, its glass transition temperature is tested at 20 70 DEG C with DSC；At 35 DEG C, o-chlorphenol is solvent, and its intrinsic viscosity is 0.30 0.70 dL/g；By the hydrophily of sulfonate, can be dispersed in water, the solution of clear is formed, the maximum in water contains admittedly can be up to 35%.
Description
Technical field
Present invention relates particularly to water paint polyester resin outside a kind of weather resistant room and preparation method thereof, belong to macromolecule
Field of material synthesis technology.
Background technology
Polyester is a kind of macromolecule obtained by esterification or ester exchange reaction by polyacid or its ester and polyol component
Resin, it has the excellent properties such as excellent heat-resisting, cold-resistant, heat endurance, so extensive in coating and adhesive industry
Use.Wherein Sulfonates water-soluble polyester resin, because it can be in water（Or add a small amount of cosolvent）Dispersed Cheng Cheng
Clear bright solution, can substitute most of solvent-borne type polyester resin, for coating industry.Using this kind of water-soluble polyester resin
The water paint being formulated, the organic solvent of toxic and volatile is not used, greatly reduces VOC emission, has reached green ring
The purpose of guarantor.But the Sulfonates water-soluble polyester resin of routine, it is a large amount of to use terephthalic acid (TPA) or its ester, phthalic anhydride
Etc. aromatics diacid or diester as raw material, easily absorb ultraviolet and degrade, weatherability is poor, it is impossible to for outdoor application.
The content of the invention
It is an object of the invention to solve above-mentioned technical problem, there is provided water paint is with polyester tree outside a kind of weather resistant room
Fat and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions：
The preparation method of water paint polyester resin, comprises the following steps outside a kind of weather resistant room,
S1, it is that reaction raw materials addition ester exchange catalyst or esterification catalyst carry out ester friendship with dicarboxylic acids or its ester and dihydroxylic alcohols
Change reaction or esterification, the equivalent proportion of alcohol acid reaction（1.1-2.0）：1 ；
S2, in an inert atmosphere heat-insulation pressure keeping react 1-5 hours, until accessory substance collecting amount is more than the 95% of theoretical value, it is described
Reaction temperature is between 180-270 DEG C, pressure is 1-1.5MPa；
S3, pressure is down to normal pressure in 0.5-1 hours, adds polycondensation catalyst and stabilizer, carry out polycondensation reaction 1-6 small
When, the polycondensation reaction temperature is 210-290 DEG C, and pressure is in below 500Pa；
S4, inert gas to normal pressure is filled with, melt extrusion is cooled down into obtain water paint polyester outside weather resistant room.
The raw material feeds intake as alkyd equivalent proportion is preferably used（1.3-1.7）：1 enters the start of line feeds intake.
Preferably, raw material dicarboxylic acids or its ester are selected from aliphatic dicarboxylic acid or its ester, aromatic binary carboxylic acid in the S1
Or in the combination of its ester, Cycloaliphatic dicarboxylic acids or its ester, Sulfonates dicarboxylic acids or its ester one or more
Any combination.
Preferably, raw material dihydroxylic alcohols is selected from aliphatic dihydroxy alcohol, cycloaliphatic diols or etherificate condensation binary in the S1
One or more any combination of alcohol.
Ethers glycol is added in polyester synthesis, can substantially reduce the glass transition temperature of product, lifts the soft of product
Toughness, while can form the interaction of hydrogen bond with the hydrogen in water by the oxygen of ehter bond, improves the water solubility of product.
In raw material fragrance is substituted using weatherability preferably alicyclic or aliphatic dicarboxylic acid or its ester and dihydroxylic alcohols
Race's binary acid or its ester, substitute fragrant same clan sulfonate and provide water-soluble using aliphatic category sulfonate, and keeping, product is water-soluble
On the premise of property and paint film property, the weather resistance of product is substantially increased, it is adaptable to outdoor coating.
Preferably, the aliphatic dibasic acid or its ester are selected from 1, 4- succinic acid or its ester, 1,6- adipic acids or its ester, 1,
9- azelaic acids or its ester, 1,10- decanedioic acid or its ester, 1,11- heneicosanedioic acids or its ester or 1,12 dodecanedioic acid or its ester
In one or more any combination；
The aromatic acid is selected from terephthalic acid (TPA) or its ester, M-phthalic acid or its ester or phthalic acid or its ester
One or more any combination；
The Cycloaliphatic dicarboxylic acids are selected from 1,2- cyclohexane cyclohexanedimethanodibasics or its ester, 1,3- cyclohexane cyclohexanedimethanodibasics or its ester, 1,4-
One or more any combination in cyclohexane cyclohexanedimethanodibasic or its ester, HHPA or its diester.
The sulfonate dicarboxylic acids or its ester are selected from one or two in aromatic sulphonate or aliphatic sulfonate
Any combination above.Wherein described aromatic sulphonate be selected from Sodium Dimethyl Isophthalate-5-sulfonate or M-phthalic acid-
5- sodium sulfonates；Aliphatic sulfonate is selected from two butyric acid dibutyl ester -2- sodium sulfonates or two butyric acid -2- sodium sulfonates.
Preferably, the aliphatic dihydroxy alcohol is selected from ethylene glycol, 1,2-PD, 1,3-PD, BDO, 1,
6- hexylene glycols, 1,9- nonanediols, 1,10- decanediols, 1,12- dodecanediols, neopentyl glycol, 2,2,4- trimethyls -1,3- penta
One or more any combination in glycol, 2- ethyls -2- butyl propane diols or Hydroxypivalyl hydroxypivalate；
The cycloaliphatic diols be selected from 1,2- cyclohexanedimethanols, 1,3- cyclohexanedimethanols, 1,4 cyclohexane dimethanol or
One or more any combination of 1,4- cyclohexanediols；
The etherificate condensation dihydroxylic alcohols is selected from diethylene glycol, tirethylene glycol, triethylene Glycol, polyethylene glycol, a contracting the third two
In alcohol, two contracting propane diols, tripropylene glycol, polypropylene glycol, a contracting butanediol or two contracting butanediols one or more
Any combination.
Preferably, ester exchange catalyst or esterification catalyst are selected from magnesium acetate, zinc acetate, manganese acetate, oxidation in the S1
One or more any combination in dibutyl tin, butyl titanate；Polycondensation catalyst is selected from three oxidations in the S3
One or more any combination in two antimony, antimony acetate, germanium dioxide；The stabilizer is selected from phosphoric acid, Phosphation
Thing, phosphorous acid, one or more any combination of phosphite ester compound.
Preferably, dicarboxylic acids described in the S1 or its ester be selected from terephthalic acid (TPA) or its ester, M-phthalic acid or its
Ester, phthalic acid or its ester, HHPA or its ester, 1,6- adipic acids or its ester and two butyric acid dibutyl ester -2- sodium sulfonates
Mixture；
And the terephthalic acid (TPA) or its ester consumption are relative to the 0mol%-20mol% of acid equivalent total amount, the M-phthalic acid
Or its ester consumption be equivalent to the 30mol%-80mol% of acid equivalent total amount, the phthalic acid or its ester consumption be relative to
The 0mol%-20mol% of sour total amount, the HHPA or its ester consumption be equivalent to the 20mol%-50mol% of acid equivalent total amount,
The 1,6- adipic acids or its ester consumption are equivalent to the 10mol%-50mol% of acid equivalent total amount, the two butyric acid dibutyl ester -2-
Sodium sulfonate consumption is equivalent to the 3mol%-20mol% of acid equivalent total amount.
The dihydroxylic alcohols is selected from ethylene glycol, neopentyl glycol, 1,6- hexylene glycol, the mixing of 1,2-PD and diethylene glycol
Thing；Wherein ethylene glycol consumption is that the neopentyl glycol consumption is equivalent to alcohol relative to the 0mol%-30mol% of alcohol equivalent total amount
The 20mol%-50mol% of equivalent total amount, 1, the 6- hexylene glycols consumption is equivalent to the 0mol%-30mol% of alcohol equivalent total amount, institute
It is that the diethylene glycol consumption is equivalent to alcohol equivalent to the 0mol%-30mol% of alcohol equivalent total amount to state 1,2-PD consumption
The 20mol%-50mol% of equivalent total amount.
Preferably, at 220-250 DEG C, the reaction time was controlled at 3-5 hours for the esterification or transesterification reaction temperature control；
At 250-280 DEG C, reaction pressure control is controlled at 3-6 hours polycondensation reaction temperature control in below 100Pa, reaction time.
Water paint polyester resin outside weather resistant room obtained in approach described above, the polyester resin is that copolymerization is more
Ester, and the copolyester intrinsic viscosity be 0.30-0.70 dL/g, glass transition temperature at 20-70 DEG C, its in water most
It is big to contain admittedly for 35%.Contain aromatic series class formation unit in the copolyester, its content is based on acid or alcohol equivalent total amount
10mol%-50mol%, contains alicyclic class formation unit in the copolyester, its content is based on acid or alcohol equivalent total amount
10mol%-70mol%, the aliphatic category sulfonate content is the 3mol%-20mol% based on acid equivalent total amount.
Beneficial effects of the present invention：Water paint polyester resin outside weather resistant room of the invention, its glass is tested with DSC
Change temperature at 20-70 DEG C；At 35 DEG C, o-chlorphenol is solvent, and its intrinsic viscosity is 0.30-0.70 dL/g；By sulfonate
Hydrophily, can be dispersed in water, form the solution of clear, maximum in water is admittedly containing can be up to 35%.
In due to aromatic structure, containing the big π bond structures of undersaturated phenyl ring class, such unsaturated structure is easy to absorb
Outdoor ultraviolet and cause unsaturated structural break, so as to cause breakdown of coating, performance deficiencies so that such water paint is difficult
In outdoor utilization.Using various alicyclic or aliphatic structure, the aromatic structure in original conventional material is substituted, ensureing former
In the case of having water-soluble and paint film property without substantially reducing, its weather resistance is greatly improved, be that it is used for outdoor coating
Lay a solid foundation.
Specific embodiment
Technical scheme is specifically described with reference to embodiments.Wherein, embodiment 1 to embodiment 3 is the present invention
Comparative example；Embodiment 4 to embodiment 6 is the specific embodiment in the scope of the invention.
It is used to prove that the coating that polyester of the invention is made into has stronger weather resistance finally by detection correlated performance.
Embodiment 1
By terephthalic acid (TPA) 30.4kg, M-phthalic acid 10.4kg, Sodium Dimethyl Isophthalate-5-sulfonate 9.1kg and second two
Alcohol 30kg is put into 100L stainless steel cauldrons, and adds 12g butyl titanates and 55g zinc acetates.Under nitrogen system, plus
1.0-1.5MPa is depressed into, 180-200 DEG C of insulation reaction is warmed up to after 1.5 hours, then is gradually warmed up to 220-240 DEG C of reaction 2.5
Hour, when collection amount of by-products reaches calculated value, gradually bleeding off pressure to normal pressure, esterification terminates.Add the acetic acid of 33g
The triphenyl phosphate of antimony and 25g, decompression step by step is progressively warmed up to 280 degree to below 100Pa in 0.5 hour, carries out polycondensation anti-
Should.Reaction obtains polymer product after 3 hours.
Product dsc analysis, measure glass transition temperature（Tg）It is 53 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.27dL/
g。
Embodiment 2
By terephthalic acid (TPA) 30.4kg, M-phthalic acid 10.4kg, Sodium Dimethyl Isophthalate-5-sulfonate 9.1kg and second two
Alcohol 19kg, diethylene glycol 17.5kg are put into 100L stainless steel cauldrons, and add 12g butyl titanates and 55g acetic acid
Zinc, under nitrogen system, is forced into 1.0-1.5MPa, is warmed up to 180-200 DEG C of insulation reaction 1.5 hours, then is gradually warmed up to
220-240 DEG C is reacted 2.5 hours, when collection amount of by-products reaches calculated value, is gradually bled off pressure to normal pressure, esterification knot
Beam.The antimony acetate of 33g and the triphenyl phosphate of 25g are added, decompression step by step is progressively warmed up to below 100Pa in 0.5 hour
280 degree, carry out polycondensation reaction.Reaction obtains polymer product after 4 hours.
Product dsc analysis, measure glass transition temperature（Tg）It is 29 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.43dL/
g。
Embodiment 3
By terephthalic acid (TPA) 14.8kg, M-phthalic acid 28.6kg, Sodium Dimethyl Isophthalate-5-sulfonate 4.3kg and second two
Alcohol 10.3kg, neopentyl glycol 21.7kg, diethylene glycol 2.1kg are put into 100L stainless steel cauldrons, and add 3g metatitanic acids
Four butyl esters and 15g zinc acetates, under nitrogen system, are forced into 1.0-1.5MPa, are warmed up to 180-200 DEG C of insulation reaction 1.5 small
When, then be gradually warmed up to 220-240 DEG C react 2.5 hours, when collect amount of by-products reach calculated value when, gradually bleed off pressure to
Normal pressure, esterification terminates.The antimony acetate of 18g and the triphenyl phosphate of 10g are added, decompression step by step is to 100Pa in 0.5 hour
Hereinafter, 280 degree are progressively warmed up to, polycondensation reaction is carried out.Reaction obtains polymer product after 5 hours.
Product dsc analysis, measure glass transition temperature（Tg）It is 45 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.62dL/
g。
Embodiment 4
By HHPA 11.7kg, M-phthalic acid 28.6kg, Sodium Dimethyl Isophthalate-5-sulfonate 8.2kg and 1,2- third
Glycol 12.6kg, neopentyl glycol 21.3kg, diethylene glycol 2.5kg are put into 100L stainless steel cauldrons, and add 3g titaniums
Sour four butyl esters and 15g zinc acetates, under nitrogen system, are forced into 1.0-1.5MPa, are warmed up to 180-200 DEG C of insulation reaction 1.5
Hour, then be gradually warmed up to 220-240 DEG C react 2.5 hours, when collect amount of by-products reach calculated value when, gradually bleed off pressure
To normal pressure, esterification terminates.The antimony acetate of 18g and the triphenyl phosphate of 10g are added, decompression step by step is arrived in 0.5 hour
Below 100Pa, is progressively warmed up to 280 degree, carries out polycondensation reaction.Reaction obtains polymer product after 3 hours.
Product dsc analysis, measure glass transition temperature（Tg）It is 42 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.35dL/
g。
Embodiment 5
By HHPA 11kg, M-phthalic acid 27.9kg, two butyric acid dibutyl ester -2- sodium sulfonate 15.9kg and 1,2- propane diols
12.6kg, neopentyl glycol 21.3kg, diethylene glycol 2.5kg are put into 100L stainless steel cauldrons, and add 3g metatitanic acids four
Butyl ester and 15g zinc acetates, under nitrogen system, are forced into 1.0-1.5MPa, are warmed up to 180-200 DEG C of insulation reaction 1.5 hours,
220-240 DEG C is gradually warmed up to again to react 2.5 hours, when collecting amount of by-products and reaching calculated value, is gradually bled off pressure to normal
Pressure, esterification terminates.Add 18g antimony acetate and 10g triphenyl phosphate, in 0.5 hour decompression step by step to 100Pa with
Under, 280 degree are progressively warmed up to, carry out polycondensation reaction.Reaction obtains polymer product after 4 hours.
Product dsc analysis, measure glass transition temperature（Tg）It is 33 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.43dL/
g。
Embodiment 6
By HHPA 5.5kg, M-phthalic acid 30.2kg, 1,6- cyclohexane cyclohexanedimethanodibasic 6.17kg, two butyric acid dibutyl ester -2- sulphurs
Sour sodium 9.8kg and 1,2- propane diols 12.6kg, neopentyl glycol 21.3kg, that diethylene glycol 2.5kg puts into 100L stainless steels is anti-
In answering kettle, and 3g butyl titanates and 15g zinc acetates are added, under nitrogen system, be forced into 1.0-1.5MPa, be warmed up to 180-
200 DEG C of insulation reactions 1.5 hours, then be gradually warmed up to 220-240 DEG C and react 2.5 hours, reach theory when amount of by-products is collected
During calculated value, gradually bleed off pressure to normal pressure, esterification terminates.The antimony acetate of 18g and the triphenyl phosphate of 10g are added, it is small 0.5
When interior decompression step by step to below 100Pa, be progressively warmed up to 280 degree, carry out polycondensation reaction.Reaction obtains the produce that are polymerized after 5 hours
Thing.
Product dsc analysis, measure glass transition temperature（Tg）It is 37 DEG C；At 35 DEG C, its intrinsic viscosity is surveyed for 0.55dL/
g。
Performance detection is contrasted
Above-described embodiment and comparative example's gained polyester resin are made into water paint, the weather-proof survey of xenon lamp is used after curing of coatings
Examination instrument carries out accelerated ageing test experiments, the outward appearance after observation light irradiation to coating.After curing of coatings, high temperature and humidity test is put into
In case, experiment condition is humidity 85%, and 85 DEG C of temperature, observes appearance of coat at 1000 hours time, and using at colorimeter test
The colourity b values of coating before and after reason, both differences are yellowness index Δ b.Performance comparison is as shown in table 1.
Table 1：Embodiment and comparative example performance test
| Glass transition temperature Tg (DEG C) | Accelerated ageing * | Yellowness index Δ b | The aging * of humidity resistance | |
| Embodiment 1 | 53 | Difference | 3.23 | It is good |
| Embodiment 2 | 29 | Difference | 2.93 | It is good |
| Embodiment 3 | 45 | It is good | 1.77 | It is excellent |
| Embodiment 4 | 42 | It is excellent | 0.86 | It is excellent |
| Embodiment 5 | 33 | It is excellent | 0.44 | It is excellent |
| Embodiment 6 | 37 | It is excellent | 0.35 | It is excellent |
.Accelerated ageing *：It is excellent --- Non Apparent Abnormality；It is good --- slight crackle or discoloration；Difference --- obvious crackle or discoloration.
The aging * of humidity resistance：It is excellent --- Non Apparent Abnormality；It is good --- slight efflorescence or foaming；Difference --- obvious efflorescence or
Foaming.
By obtained as above, the property indices in the present invention are superior to comparative example.
Several exemplary embodiments are enumerated above, it is necessary to illustrate, the present invention still there are various specific embodiments,
All use equivalents or equivalent transformation and all technical schemes for being formed, all fall within the scope of protection of present invention it
It is interior.
Claims (10)
1. outside a kind of weather resistant room water paint polyester resin preparation method, it is characterised in that：Comprise the following steps,
S1, it is that reaction raw materials addition ester exchange catalyst or esterification catalyst carry out ester friendship with dicarboxylic acids or its ester and dihydroxylic alcohols
Change reaction or esterification, the equivalent proportion of alcohol acid reaction（1.1-2.0）：1 ；
S2, in an inert atmosphere heat-insulation pressure keeping react 1-5 hours, until accessory substance collecting amount is more than the 95% of theoretical value, it is described anti-
Temperature is answered between 180-270 DEG C, pressure is 1-1.5MPa；
S3, pressure is down to normal pressure in 0.5-1 hours, adds polycondensation catalyst and stabilizer, carry out polycondensation reaction 1-6 small
When, the polycondensation reaction temperature is 210-290 DEG C, and pressure is in below 500Pa；
S4, inert gas to normal pressure is filled with, melt extrusion is cooled down into obtain water paint polyester outside weather resistant room.
2. outside a kind of weather resistant room as claimed in claim 1 water paint polyester resin preparation method, it is characterised in that：
Raw material dicarboxylic acids or its ester are selected from aliphatic dicarboxylic acid or its ester, aromatic binary carboxylic acid or its ester, alicyclic ring in the S1
One or more any combination in race's dicarboxylic acids or its ester, Sulfonates dicarboxylic acids or its ester.
3. outside a kind of weather resistant room as claimed in claim 1 water paint polyester resin preparation method, it is characterised in that：
In the S1 raw material dihydroxylic alcohols be selected from aliphatic dihydroxy alcohol, cycloaliphatic diols or etherificate condensation dihydroxylic alcohols one or two with
On any combination.
4. outside a kind of weather resistant room as claimed in claim 2 water paint polyester resin preparation method, it is characterised in that：
The aliphatic dibasic acid or its ester be selected from 1,4- succinic acid or its ester, 1,6- adipic acids or its ester, 1,9- azelaic acids or its ester,
One or two in 1,10- decanedioic acid or its ester, 1,11- heneicosanedioic acids or its ester or 1,12 dodecanedioic acid or its ester
Any combination above；
The aromatic acid is selected from terephthalic acid (TPA) or its ester, M-phthalic acid or its ester or phthalic acid or its ester
One or more any combination；
The Cycloaliphatic dicarboxylic acids are selected from 1,2- cyclohexane cyclohexanedimethanodibasics or its ester, 1,3- cyclohexane cyclohexanedimethanodibasics or its ester, 1,4-
One or more any combination in cyclohexane cyclohexanedimethanodibasic or its ester, HHPA or its diester；
The sulfonate dicarboxylic acids or its ester are selected from one or more in aromatic sulphonate or aliphatic sulfonate
Any combination；
Wherein described aromatic sulphonate is selected from Sodium Dimethyl Isophthalate-5-sulfonate or 5-sodium sulfo isophthalate；Fat
Fat race sulfonate is selected from two butyric acid dibutyl ester -2- sodium sulfonates or two butyric acid -2- sodium sulfonates.
5. outside a kind of weather resistant room as claimed in claim 3 water paint polyester resin preparation method, it is characterised in that：
The aliphatic dihydroxy alcohol is selected from ethylene glycol, 1,2- propane diols, 1,3- propane diols, 1,4- butanediols, 1,6-HD, 1,9- nonyls
Glycol, 1,10- decanediols, 1,12- dodecanediols, neopentyl glycol, 2,2,4- trimethyl -1,3- pentanediols, 2- ethyl -2- fourths
One or more any combination in base propane diols or Hydroxypivalyl hydroxypivalate；
The cycloaliphatic diols be selected from 1,2- cyclohexanedimethanols, 1,3- cyclohexanedimethanols, 1,4 cyclohexane dimethanol or
One or more any combination of 1,4- cyclohexanediols；
The etherificate condensation dihydroxylic alcohols is selected from diethylene glycol, tirethylene glycol, triethylene Glycol, polyethylene glycol, a contracting the third two
In alcohol, two contracting propane diols, tripropylene glycol, polypropylene glycol, a contracting butanediol or two contracting butanediols one or more
Any combination.
6. outside a kind of weather resistant room as claimed in claim 1 water paint polyester resin preparation method, it is characterised in that：
Ester exchange catalyst or esterification catalyst are selected from magnesium acetate, zinc acetate, manganese acetate, dibutyltin oxide, metatitanic acid four in the S1
One or more any combination in butyl ester；Polycondensation catalyst is selected from antimony oxide, antimony acetate, dioxy in the S3
Change one or more any combination in germanium；The stabilizer is selected from phosphoric acid, phosphate compound, phosphorous acid, phosphorous acid
One or more any combination of carboxylate.
7. outside a kind of weather resistant room as claimed in claim 1 water paint polyester resin preparation method, it is characterised in that：
Dicarboxylic acids described in the S1 or its ester be selected from terephthalic acid (TPA) or its ester, M-phthalic acid or its ester, phthalic acid or
The mixture of its ester, HHPA or its ester, 1,6- adipic acids or its ester and two butyric acid dibutyl ester -2- sodium sulfonates；
And the terephthalic acid (TPA) or its ester consumption are relative to the 0mol%-20mol% of acid equivalent total amount, the M-phthalic acid
Or its ester consumption be equivalent to the 30mol%-80mol% of acid equivalent total amount, the phthalic acid or its ester consumption be relative to
The 0mol%-20mol% of sour total amount, the HHPA or its ester consumption be equivalent to the 20mol%-50mol% of acid equivalent total amount,
The 1,6- adipic acids or its ester consumption are equivalent to the 10mol%-50mol% of acid equivalent total amount, the two butyric acid dibutyl ester -2-
Sodium sulfonate consumption is equivalent to the 3mol%-20mol% of acid equivalent total amount；
The dihydroxylic alcohols is selected from ethylene glycol, neopentyl glycol, 1,6- hexylene glycol, the mixture of 1,2-PD and diethylene glycol；
Wherein ethylene glycol consumption is that, relative to the 0mol%-30mol% of alcohol equivalent total amount, the neopentyl glycol consumption is equivalent to alcohol equivalent
The 20mol%-50mol% of total amount, 1, the 6- hexylene glycols consumption is equivalent to the 0mol%-30mol% of alcohol equivalent total amount described 1,
2- propane diols consumptions are that, equivalent to the 0mol%-30mol% of alcohol equivalent total amount, the diethylene glycol consumption is equivalent to alcohol equivalent
The 20mol%-50mol% of total amount.
8. outside a kind of weather resistant room as claimed in claim 1 water paint polyester resin preparation method, it is characterised in that：
, at 220-250 DEG C, the reaction time was controlled at 3-5 hours for the esterification or transesterification reaction temperature control；Polycondensation reaction temperature control
At 250-280 DEG C, reaction pressure control is controlled at 3-6 hours system in below 100Pa, reaction time.
9. water paint polyester resin outside weather resistant room obtained in method as claimed in claim 1, it is characterised in that：It is described poly-
Ester resin is copolyester, and the intrinsic viscosity of the copolyester is 0.30-0.70 dL/g, and glass transition temperature is in 20-70
DEG C, it is 35% that its maximum in water contains admittedly.
10. water paint polyester resin outside weather resistant room obtained in method as claimed in claim 9, it is characterised in that：It is described
Contain aromatic series class formation unit in copolyester, its content is the 10mol%-50mol% based on acid or alcohol equivalent total amount, described
Contain alicyclic class formation unit in copolyester, its content is the 10mol%-70mol% based on acid or alcohol equivalent total amount, described
Aliphatic category sulfonate content is the 3mol%-20mol% based on acid equivalent total amount.
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| CN109438685A (en) * | 2018-09-26 | 2019-03-08 | 苏州长业材料技术有限公司 | A kind of water-soluble copolyester and preparation method thereof |
| CN112142964A (en) * | 2020-10-12 | 2020-12-29 | 中瀚新材料科技有限公司 | Modified polyester for high-light-transmittance coating and preparation method thereof |
| CN115368544A (en) * | 2022-07-12 | 2022-11-22 | 广东天龙油墨有限公司 | Water-based sulfonate polyester and preparation method and application thereof |
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| CN106854275B (en) | 2019-04-19 |
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Address after: 215000 Room 301, building 17, North West area, Suzhou nano City, No. 99, Jinjihu Avenue, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Zhonghan New Material Technology Co., Ltd Address before: 215000 Room 301, 17 Blocks, Northwest District of Suzhou Namicheng, 99 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU CHANGYE MATERIAL TECHNOLOGY Co.,Ltd. |