CN107286334A - Waterborne epoxy modified polyester resin and preparation method thereof - Google Patents
Waterborne epoxy modified polyester resin and preparation method thereof Download PDFInfo
- Publication number
- CN107286334A CN107286334A CN201710288485.2A CN201710288485A CN107286334A CN 107286334 A CN107286334 A CN 107286334A CN 201710288485 A CN201710288485 A CN 201710288485A CN 107286334 A CN107286334 A CN 107286334A
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- CN
- China
- Prior art keywords
- polyester resin
- epoxy modified
- waterborne epoxy
- modified polyester
- acid number
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/916—Dicarboxylic acids and dihydroxy compounds
-
- 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
-
- 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
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
-
- 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
-
- 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
Abstract
The invention discloses a kind of waterborne epoxy modified polyester resin and preparation method thereof, described waterborne epoxy modified polyester resin is made up of polyalcohol, polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent, and meter includes following component by weight：23 42 parts of polyalcohol, 35 59 parts of polyacid, 0.03 0.1 parts of esterification catalyst, 2 10 parts of modifying agent, 15 35 parts of Environment-friendlydiluent diluent.Aqueous amino-stoving varnish produced by the present invention has adhesive force good, and richness is high, hardness is high, water-tolerant the features such as.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of waterborne epoxy modified polyester resin and preparation method thereof.
Background technology
With the continuous improvement of people's environmental consciousness, water paint is increasingly widely applied, traditional oil
Paint has significant damage to the health and environment of people in the production and use process, and the popularization of sealing wax can reduce VOC row
Put, the generation of waste, reduce contact of the workman to poisonous releaser.Being administered for current haze also has certain facilitation.
It is reported that, during " 13 ", control of the whole nation by reinforcement to VOC (VOC) total amount, to nitrogen oxides and VOC
Carry out collaboration emission reduction.Waterborne epoxy modified polyester resin is mainly used in the row such as household electrical appliances, automobile, can and coiled material for quickly growing
Industry field, the Water-borne modification level and technology of current domestic industry coating have very big gap compared with industrially developed country.
There is not high poor adhesive force, hardness, poor water resistance in existing normal polyester resin, richness is bad, VOC content is high etc.
Shortcoming.
At present, good waterborne epoxy modified polyester resin of a kind of adhesive force and preparation method thereof is lacked.
The content of the invention
Regarding the issue above, the present invention provides a kind of adhesive force good waterborne epoxy modified polyester resin and
Its preparation method.
To reach above-mentioned purpose, present invention employs following technical proposal：A kind of waterborne epoxy modified polyester of the present invention
Resin, described waterborne epoxy modified polyester resin is by polyalcohol, polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent group
Into meter includes following component by weight：
Further, described waterborne epoxy modified polyester resin is counted including following component by weight：
Further, described waterborne epoxy modified polyester resin is counted including following component by weight：
Further, described polyalcohol is the combination of one or both of neopentyl glycol, trimethylolpropane.
Further, described polyacid is one or more of in M-phthalic acid, adipic acid or trimellitic anhydride
Combination.
Further, the epoxy resin is epoxy resin E20；Described Environment-friendlydiluent diluent be ethylene glycol monobutyl ether,
One or more combinations in propylene glycol monomethyl ether, n-butanol, isopropanol and sec-butyl alcohol.
Further, described esterification catalyst is Dibutyltin oxide.
The preparation method of waterborne epoxy modified polyester resin of the present invention, comprises the following steps：
(1) each component of the parts by weight meter is weighed, the polyacid, polyalcohol and esterification catalyst are put into logical
Have in the reactor of nitrogen, be slowly warming up to 140 DEG C, start and stir and stir 5-10min, be warming up to 170 DEG C and be incubated 1h, this
210 DEG C are slowly warming up to afterwards, until acid number touches the mark；Wherein, the acid number index is below 9mgKOH/g；
(2) after acid number touches the mark, 170 DEG C are cooled under agitation, then add modifying agent insulation 1h；
(3) polyacid insulation and then is under agitation added until acid number touches the mark；Wherein, the acid number index is 30-
50mgKOH/g；
(4) after the acid number in step (2) touches the mark, cool under agitation and sequentially add Environment-friendlydiluent diluent and convert
It is dilute, waterborne epoxy modified polyester resin is made.
Further, in step (1), described acid number index is below 9mgKOH/g；Slowly being warming up to 210 DEG C is
180 DEG C of insulations 1h, 190 DEG C of insulations 1h, 200 DEG C of insulation 1h, 210 DEG C of insulations；
In step (2), described acid number index is 30-50mgKOH/g；
In step (3), the acid number index is 30-50mgKOH/g.
Beneficial effect：Adhesive force of the present invention is good, hardness is high, water-tolerant, richness high, VOC is low.So as to greatly reduce
VOC discharge capacity, reduces environmental pollution, to energy-saving and emission-reduction, low-carbon environment-friendly.
Compared with prior art, the invention has the advantages that：
(1) present invention is waterborne epoxy modified polyester resin, and the aqueous amino-stoving varnish that it makes is made diluent using water, subtracted
The consumption of petroleum resources is lacked.Paint film has hardness high simultaneously, and adhesive force is good, and richness is good, water-tolerant, non-ignitable not quick-fried, low
The performances such as carbocyclic ring guarantor.
(2) formula addition higher boiling environmentally friendly solvent, makes the invention product not contain the poisonous and harmful substances such as benzene, dimethylbenzene,
VOC content is low, and the healthy influence on environment and workmen is smaller.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be made below into
One step it is described in detail.
Embodiment 1
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin by polyalcohol,
Polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent composition, by weight meter include following component：
Described polyalcohol is two kinds of combination in neopentyl glycol and trimethylolpropane.Described polyacid is isophthalic
Two kinds of combination in dioctyl phthalate and adipic acid.The epoxy resin is epoxy resin E20；Described Environment-friendlydiluent diluent is second two
Alcohol monobutyl ether.Described esterification catalyst is Dibutyltin oxide.
The preparation method of waterborne epoxy modified polyester resin of the present invention, comprises the following steps：
(1) described each component is weighed, the polyacid, polyalcohol and esterification catalyst are put into and are connected with the anti-of nitrogen
Answer in kettle, be slowly warming up to 140 DEG C, start and stir and stir 5min, be warming up to 170 DEG C and be incubated 1h, be hereafter slowly warming up to
210 DEG C, until acid number touches the mark；Wherein, the acid number index is below 9mgKOH/g；Described acid number index is
Below 9mgKOH/g；It is 180 DEG C of insulations 1h, 190 DEG C of insulations 1h, 200 DEG C of insulation 1h, 210 DEG C of insulations to be slowly warming up to 210 DEG C；
(2) after acid number touches the mark, 170 DEG C are cooled under agitation, then add modifying agent insulation 1h；Described acid
Value index is 30mgKOH/g；
(3) polyacid insulation and then is under agitation added until acid number touches the mark；Wherein, the acid number index is
30mgKOH/g；
(4) after the acid number in step (2) touches the mark, cool under agitation and sequentially add Environment-friendlydiluent diluent and convert
It is dilute, waterborne epoxy modified polyester resin is made.
Embodiment 2
The difference of embodiment 2 and embodiment 1 is：
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin by polyalcohol,
Polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent composition, by weight meter include following component：
Described polyalcohol is neopentyl glycol.Described polyacid is trimellitic anhydride.Described Environment-friendlydiluent diluent is third
Four kinds of combination in glycol methyl ether, n-butanol, isopropanol and sec-butyl alcohol.
The preparation method of waterborne epoxy modified polyester resin of the present invention, comprises the following steps：
In step (1), described each component is weighed, the polyacid, polyalcohol and esterification catalyst are put into logical
Have in the reactor of nitrogen, be slowly warming up to 140 DEG C, start and stir and stir 10min, be warming up to 170 DEG C and be incubated 1h, hereafter
210 DEG C are slowly warming up to, until acid number touches the mark；
In step (2), after acid number touches the mark, 170 DEG C are cooled under agitation, then add modifying agent insulation
1h；Described acid number index is 40mgKOH/g；
In step (3), polyacid insulation is then added under agitation until acid number touches the mark；Wherein, the acid number
Index is 50mgKOH/g.
Embodiment 3
The difference of embodiment 3 and embodiment 1 is：
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin by polyalcohol,
Polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent composition, by weight meter include following component：
Described polyalcohol is trimethylolpropane.Described polyacid is M-phthalic acid, adipic acid and trimellitic acid
Three kinds of combination in acid anhydride.Described Environment-friendlydiluent diluent is three kinds in ethylene glycol monobutyl ether, propylene glycol monomethyl ether and sec-butyl alcohol
Combination.
The preparation method of waterborne epoxy modified polyester resin of the present invention, comprises the following steps：
In step (1), described each component is weighed, the polyacid, polyalcohol and esterification catalyst are put into logical
Have in the reactor of nitrogen, be slowly warming up to 140 DEG C, start and stir and stir 8min, be warming up to 170 DEG C and be incubated 1h, hereafter
210 DEG C are slowly warming up to, until acid number touches the mark；
In step (2), after acid number touches the mark, 170 DEG C are cooled under agitation, then add modifying agent insulation
1h；Described acid number index is 50mg KOH/g；
In step (3), polyacid insulation is then added under agitation until acid number touches the mark；Wherein, the acid number
Index is 40mgKOH/g；
Embodiment 4
The difference of embodiment 4 and embodiment 1 is：
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin is by weight
Meter includes following component：
Described polyalcohol is neopentyl glycol.Described polyacid is adipic acid.Described esterification catalyst is dibutyl
Tin oxide.The epoxy resin is epoxy resin E20；Described Environment-friendlydiluent diluent is ethylene glycol monobutyl ether, propylene glycol monomethyl ether, just
Four kinds of combination in butanol and sec-butyl alcohol.
Embodiment 5
The difference of embodiment 5 and embodiment 1 is：
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin is by weight
Meter includes following component：
Described polyalcohol is two kinds of combination in neopentyl glycol, trimethylolpropane.Described polyacid is isophthalic
Two kinds of combination in dioctyl phthalate, trimellitic anhydride.Described Environment-friendlydiluent diluent is two kinds of group in isopropanol and sec-butyl alcohol
Close.
Embodiment 6
The difference of embodiment 6 and embodiment 1 is：
A kind of waterborne epoxy modified polyester resin of the present invention, described waterborne epoxy modified polyester resin is by weight
Meter includes following component：
Described polyalcohol is trimethylolpropane.Described polyacid is M-phthalic acid.Described Environment-friendlydiluent diluent
For three kinds of combination in propylene glycol monomethyl ether, n-butanol and isopropanol.
Experiment 1
The detection data of embodiment 1 to embodiment 3 are as shown in table 1,
Table 1
As shown in Table 1, adhesive force of the invention is good, and hardness height, water-tolerant, richness are high, weatherability is strong.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, the present invention
Claimed scope is by appended claims, specification and its equivalent thereof.
Claims (9)
1. a kind of waterborne epoxy modified polyester resin, it is characterised in that：Described waterborne epoxy modified polyester resin by polyalcohol,
Polyacid, esterification catalyst, modifying agent, Environment-friendlydiluent diluent composition, by weight meter include following component：
2. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：Described is waterborne epoxy modified poly-
Ester resin is counted including following component by weight：
3. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：Described is waterborne epoxy modified poly-
Ester resin is counted including following component by weight：
4. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：Described polyalcohol is new penta 2
The combination of one or both of alcohol, trimethylolpropane.
5. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：Described polyacid is isophthalic two
One or more of combinations in formic acid, adipic acid or trimellitic anhydride.
6. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：The epoxy resin is asphalt mixtures modified by epoxy resin
Fat E20；Described Environment-friendlydiluent diluent is one kind in ethylene glycol monobutyl ether, propylene glycol monomethyl ether, n-butanol, isopropanol and sec-butyl alcohol
Or a variety of combinations.
7. waterborne epoxy modified polyester resin according to claim 1, it is characterised in that：Described esterification catalyst is two
Butyl tin oxide.
8. the preparation method of the waterborne epoxy modified polyester resin described in any one of claim 1 to 7, it is characterised in that including such as
Lower step：
(1) each component of parts by weight meter described in claim 1 is weighed, the polyacid, polyalcohol and esterification catalyst are thrown
Enter to being connected with the reactor of nitrogen, be slowly warming up to 140 DEG C, start and stir and stir 5-10min, be warming up to 170 DEG C and protect
Warm 1h, is hereafter slowly warming up to 210 DEG C, until acid number touches the mark；Wherein, the acid number index is below 9mgKOH/g；
(2) after acid number touches the mark, 170 DEG C are cooled under agitation, then add modifying agent insulation 1h；
(3) polyacid insulation and then is under agitation added until acid number touches the mark；Wherein, the acid number index is 30-
50mgKOH/g；
(4) after the acid number in step (2) touches the mark, cool under agitation and sequentially add Environment-friendlydiluent diluent latting drown,
Waterborne epoxy modified polyester resin is made.
9. the preparation method of waterborne epoxy modified polyester resin according to claim 8, it is characterised in that：In step (1)
In, described acid number index is below 9mgKOH/g；It is 180 DEG C of insulation 1h to be slowly warming up to 210 DEG C, and 190 DEG C are incubated 1h, 200
DEG C insulation 1h, 210 DEG C insulation；
In step (2), described acid number index is 30-50mgKOH/g；
In step (3), the acid number index is 30-50mgKOH/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288485.2A CN107286334A (en) | 2017-04-27 | 2017-04-27 | Waterborne epoxy modified polyester resin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288485.2A CN107286334A (en) | 2017-04-27 | 2017-04-27 | Waterborne epoxy modified polyester resin and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107286334A true CN107286334A (en) | 2017-10-24 |
Family
ID=60093930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710288485.2A Pending CN107286334A (en) | 2017-04-27 | 2017-04-27 | Waterborne epoxy modified polyester resin and preparation method thereof |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354980A (en) * | 2018-10-31 | 2019-02-19 | 苏州巨峰电气绝缘系统股份有限公司 | A kind of water-base epoxy impregnating varnish and its preparation method and application |
| CN109679465A (en) * | 2018-12-26 | 2019-04-26 | 中华制漆（深圳）有限公司 | Water paint and its application method |
| CN109721717A (en) * | 2017-10-31 | 2019-05-07 | 万华化学（广东）有限公司 | A kind of waterborne epoxy modified saturated polyester resin and its preparation method and application |
| CN109880070A (en) * | 2018-12-29 | 2019-06-14 | 广昌立骅科技股份有限公司 | A kind of water-based stoving paint modified water-soluble polyester resin dispersion and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850553A (en) * | 2012-09-04 | 2013-01-02 | 浙江天女集团制漆有限公司 | Preparation method of modified polyester resin for coiled material coating material |
| CN106047097A (en) * | 2016-05-23 | 2016-10-26 | 江苏科祥防腐材料有限公司 | Waterborne epoxy-modified polyester plate primer and preparation method thereof |
-
2017
- 2017-04-27 CN CN201710288485.2A patent/CN107286334A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850553A (en) * | 2012-09-04 | 2013-01-02 | 浙江天女集团制漆有限公司 | Preparation method of modified polyester resin for coiled material coating material |
| CN106047097A (en) * | 2016-05-23 | 2016-10-26 | 江苏科祥防腐材料有限公司 | Waterborne epoxy-modified polyester plate primer and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721717A (en) * | 2017-10-31 | 2019-05-07 | 万华化学（广东）有限公司 | A kind of waterborne epoxy modified saturated polyester resin and its preparation method and application |
| CN109721717B (en) * | 2017-10-31 | 2021-12-10 | 万华化学（广东）有限公司 | Waterborne epoxy modified saturated polyester resin and preparation method and application thereof |
| CN109354980A (en) * | 2018-10-31 | 2019-02-19 | 苏州巨峰电气绝缘系统股份有限公司 | A kind of water-base epoxy impregnating varnish and its preparation method and application |
| CN109354980B (en) * | 2018-10-31 | 2021-01-29 | 苏州巨峰电气绝缘系统股份有限公司 | Water-based epoxy impregnating varnish and preparation method and application thereof |
| CN109679465A (en) * | 2018-12-26 | 2019-04-26 | 中华制漆（深圳）有限公司 | Water paint and its application method |
| CN109880070A (en) * | 2018-12-29 | 2019-06-14 | 广昌立骅科技股份有限公司 | A kind of water-based stoving paint modified water-soluble polyester resin dispersion and preparation method thereof |
| CN109880070B (en) * | 2018-12-29 | 2021-05-18 | 广昌立骅科技股份有限公司 | Modified water-based polyester resin dispersoid for water-based baking paint and preparation method thereof |
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Application publication date: 20171024 |