CN105254861A - Alkyd resin for high-solid low-viscosity PU (polyurethane) gloss topcoat and preparation method of alkyd resin - Google Patents
Alkyd resin for high-solid low-viscosity PU (polyurethane) gloss topcoat and preparation method of alkyd resin Download PDFInfo
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Abstract
The invention relates to alkyd resin for a high-solid low-viscosity PU (polyurethane) gloss topcoat and a preparation method of the alkyd resin. The alkyd resin is prepared from components in parts by weight as follows: 11-17 parts of synthetic fatty acid, 27-29 parts of polyols, 29-35 parts of organic acid, 0.1-0.2 parts of an antioxidant, 3-5 parts of a backflow solvent, 6-8 parts of a functional monomer and 12-16 parts of a diluting solvent. By the aid of the prepared alkyd resin for the high-solid low-viscosity PU gloss topcoat, the PU gloss topcoat keeps combination properties including good gloss, good fullness, high hardness, good leveling property, anti-yellowing and the like of the traditional PU gloss topcoat and further has the characteristics of high solids, low viscosity, low VOC (volatile organic compounds) and environmental protection during spraying construction, and the VOC during spraying can reach 420 g/L specified by the national tax exemption standard. Therefore, the high-solid low-viscosity PU gloss topcoat has high application value and broad application prospect under the current national coercion environmental policy.
Description
Technical field
The present invention relates to a kind of high-solid lower-viscosity PU light top coat top coat Synolac and preparation method thereof.
Background technology
The over-all propertieies such as conventional P U light top coat top coat good luster, fullness ratio is good, hardness is high, good leveling property, color inhibition are good, but VOC during its spraying application is substantially at more than 550g/L, the tax-free standard 420g/L specified with the environmental law that this year, China newly issued differs greatly.Therefore study high-solid lower-viscosity, the PU of below VOC420g/L paints the hot topic that product becomes industry.
The over-all propertieies such as high-solid lower-viscosity PU light top coat top coat Synolac not only maintains conventional P U light top coat top coat good luster, fullness ratio is good, hardness is high, good leveling property, color inhibition are good prepared by the present invention, high-solid lower-viscosity when simultaneously having a spraying application, low VOC, environmental protection, the country that during spraying, VOC can reach 420g/L exempts from taxation standard.Therefore, under current national high-voltage environment-friendlyair policy, there is very large market outlook and using value.
Summary of the invention
During in order to solve conventional P U light top coat top coat spraying application, VOC is too high, polluted air environment, the technical problem such as not environmentally, the invention provides a kind of high-solid lower-viscosity PU light top coat top coat Synolac and preparation method thereof, PU light top coat top coat prepared therefrom not only maintains conventional P U light top coat top coat good luster, fullness ratio is good, hardness is high, good leveling property, the over-all propertieies such as color inhibition is good, and high-solid lower-viscosity when there is spraying application, low VOC, the advantages such as environmental protection, the country that during its spraying, VOC can reach 420g/L exempts from taxation standard, therefore there is very large marketing prospect.
A kind of high-solid lower-viscosity PU of the present invention light top coat top coat Synolac, is characterized in that:
Described letdown solvent dun is the one in dimethylbenzene, N-BUTYL ACETATE, vinyl acetic monomer; Described reflux solvent is the one in dimethylbenzene, toluene; Described function monomer is tertiary carbonic acid glycidyl ester.
Further, described synthetic fatty acid is the one in laurostearic acid, sad, isocaprylic acid.
Further, described polyvalent alcohol is one or more arbitrary proportions mixing in tetramethylolmethane, TriMethylolPropane(TMP), neopentyl glycol.
Further, described organic acid is one or more arbitrary proportions mixing in Tetra hydro Phthalic anhydride, phenylformic acid, hexanodioic acid.
Further, described oxidation inhibitor is Hypophosporous Acid, 50.Further, the preparation method of a kind of high-solid lower-viscosity PU of the present invention light top coat top coat Synolac, is prepared as follows;
At room temperature, by 11-17 part synthetic fatty acid, 27-29 part polyvalent alcohol, 29-35 part organic acid, 0.1-0.2 part oxidation inhibitor, 3-5 part reflux solvent, be sequentially added in agitator, stir 0.5-1h;
Then slowly heat up, after rising to 170-190 DEG C, after insulation reaction 1-2h, add 6-8 part function monomer;
Then be warming up to 190-220 DEG C, start acid number and the viscosity of measuring reaction system, until acid number is 11-12mgKOH/g and viscosity is after 1500-2000mpa.s/25 DEG C, start cooling, after being cooled to 120-150 DEG C, add 12-16 part letdown solvent dun, stir 0.5-1h, discharging.
The over-all propertieies such as high-solid lower-viscosity PU light top coat top coat Synolac not only maintains conventional P U light top coat top coat good luster, fullness ratio is good, hardness is high, good leveling property, color inhibition are good prepared by the present invention, high-solid lower-viscosity when simultaneously having a spraying application, low VOC, environmental protection, the country that during spraying, VOC can reach 420g/L exempts from taxation standard.Therefore, under current national high-voltage environment-friendlyair policy, there is very large market outlook and using value.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.The each raw material of following embodiment is all commercially available products.
Embodiment 1
By 15.22g laurostearic acid, 27.4g TriMethylolPropane(TMP), 6.26g phenylformic acid, 25.83g Tetra hydro Phthalic anhydride, 0.15g Hypophosporous Acid, 50,3.91g toluene, be sequentially added in the four-hole boiling flask of band whipping appts, slow intensification, in 170 DEG C of insulation reaction 1h, then 6.26g tertiary carbonic acid glycidyl ester is added, heat up in 190-220 DEG C of insulation reaction, until acid number is 12mgKOH/g, viscosity 1500-2000mpa.s/25 DEG C, then after being cooled to 120 DEG C, add 14.97g dimethylbenzene, stir 0.5 hour, discharging.
Embodiment 2
By 11.45g isocaprylic acid, 28.62g TriMethylolPropane(TMP), 6.54g phenylformic acid, 26.98g Tetra hydro Phthalic anhydride, 0.16g Hypophosporous Acid, 50,4.08g dimethylbenzene, be sequentially added in the four-hole boiling flask of band whipping appts, slow intensification, in 180 DEG C of insulation reaction 1.5h, then 6.54g tertiary carbonic acid glycidyl ester is added, heat up in 200 DEG C of insulation reaction, until acid number is 11mgKOH/g, viscosity 1500mpa.s/25 DEG C, then after being cooled to 130 DEG C, add 15.63g N-BUTYL ACETATE, stir 0.5 hour, discharging.
Embodiment 3
By 16.11g laurostearic acid, 27.27g TriMethylolPropane(TMP), 6.63g phenylformic acid, 23.27g Tetra hydro Phthalic anhydride, 0.13g Hypophosporous Acid, 50,4.24g dimethylbenzene, be sequentially added in the four-hole boiling flask of band whipping appts, slow intensification, in 180 DEG C of insulation reaction 2h, then 7.33g tertiary carbonic acid glycidyl ester is added, heat up in 210 DEG C of insulation reaction, until acid number is 12mgKOH/g, viscosity 1600mpa.s/25 DEG C, then after being cooled to 140 DEG C, add 15.02g vinyl acetic monomer, stir 0.5 hour, discharging.
Embodiment 4
11.86g is sad, 24.58g TriMethylolPropane(TMP), 3.3g tetramethylolmethane, 6.89g phenylformic acid, 27.43g Tetra hydro Phthalic anhydride, 0.17g Hypophosporous Acid, 50,4.76g dimethylbenzene, be sequentially added in the four-hole boiling flask of band whipping appts, slow intensification, in 190 DEG C of insulation reaction 2h, then 7.92g tertiary carbonic acid glycidyl ester is added, heat up in 220 DEG C of insulation reaction, until acid number is 12mgKOH/g, viscosity 2000mpa.s/25 DEG C, then after being cooled to 150 DEG C, add 13.09g N-BUTYL ACETATE, stir 0.5 hour, discharging.
Embodiment 5
At room temperature, by 11 parts of sad, 27 parts of tetramethylolmethanes, 29 parts of phenylformic acid, 0.1 part of Hypophosporous Acid, 50,3 parts of dimethylbenzene, be sequentially added in agitator;
Then slowly heat up, after rising to 170 DEG C, after insulation reaction 1h, add 6 parts of tertiary carbonic acid glycidyl esters;
Then be warming up to 190 DEG C, start acid number and the viscosity of measuring reaction system, until acid number is 12mgKOH/g and after viscosity 1500mpa.s/25 DEG C, is cooled to 150 degree DEG C; Finally add 12 parts of N-BUTYL ACETATEs, stir 0.5h, discharging.
Embodiment 6
At room temperature, by 17 parts of sad, 29 parts of tetramethylolmethanes, 35 parts of phenylformic acid, 0.2 part of Hypophosporous Acid, 50,5 parts of dimethylbenzene, be sequentially added in agitator;
Then slowly heat up, after rising to 190 DEG C, after insulation reaction 2h, add 8 parts of tertiary carbonic acid glycidyl esters;
Then be warming up to 220 DEG C, start acid number and the viscosity of measuring reaction system, until acid number is 12mgKOH/g and after viscosity 2000mpa.s/25 DEG C, is cooled to 150 degree DEG C; Finally add 16 parts of N-BUTYL ACETATEs, stir 1h, discharging.
The high-solid lower-viscosity PU light top coat top coat Synolac of table 1 obtained by above-described embodiment 1-6 and conventional P U light top coat top coat Synolac physicochemical property contrast table.
The high-solid lower-viscosity PU light top coat top coat Synolac of table 2 obtained by above-described embodiment 1-6 and conventional P U light top coat top coat Synolac painting performance comparison table.
Table 1 high-solid lower-viscosity PU light top coat top coat Synolac and conventional P U light top coat top coat Synolac physicochemical property contrast table
Table 2 high-solid lower-viscosity PU light top coat top coat Synolac and conventional P U light top coat top coat Synolac painting performance comparison table
As can be seen from upper table 1,2, it is lower that high-solid lower-viscosity PU light top coat top coat Synolac prepared by the present invention compares conventional P U light top coat top coat Synolac viscosity, and other physical and chemical index is substantially suitable.The simultaneously over-all propertieies such as high-solid lower-viscosity PU light top coat top coat not only maintains conventional P U light top coat top coat good luster, fullness ratio is good, hardness is high, good leveling property, color inhibition are good prepared of high-solid lower-viscosity Synolac of the present invention, high-solid lower-viscosity when simultaneously having a spraying application, low VOC, environmental protection, the country that during spraying, VOC can reach 420g/L exempts from taxation standard.Therefore, under current national high-voltage environment-friendlyair policy, there is very large market outlook and using value.
The present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.
Claims (6)
1. a high-solid lower-viscosity PU light top coat top coat Synolac, is characterized in that, it is formulated by following ratio of weight and number by following component:
Described function monomer is tertiary carbonic acid glycidyl ester; Described reflux solvent is the one in dimethylbenzene, toluene; Described letdown solvent dun is the one in dimethylbenzene, N-BUTYL ACETATE, vinyl acetic monomer.
2. according to high-solid lower-viscosity PU light top coat top coat Synolac according to claim 1, it is characterized in that: described synthetic fatty acid is the one in laurostearic acid, sad, isocaprylic acid.
3. according to high-solid lower-viscosity PU light top coat top coat Synolac according to claim 1, it is characterized in that: described polyvalent alcohol is one or more arbitrary proportions mixing in tetramethylolmethane, TriMethylolPropane(TMP), neopentyl glycol.
4. according to high-solid lower-viscosity PU light top coat top coat Synolac according to claim 1, it is characterized in that: described organic acid is one or more arbitrary proportions mixing in Tetra hydro Phthalic anhydride, phenylformic acid, hexanodioic acid.
5., according to high-solid lower-viscosity PU light top coat top coat Synolac according to claim 1, it is characterized in that: described oxidation inhibitor is Hypophosporous Acid, 50.
6. according to the preparation method of the high-solid lower-viscosity PU light top coat top coat Synolac described in claim 1-5, it is characterized in that, prepare in accordance with the following methods:
At room temperature, by 11-17 part synthetic fatty acid, 27-29 part polyvalent alcohol, 29-35 part organic acid, 0.1-0.2 part oxidation inhibitor, 3-5 part reflux solvent, be sequentially added in agitator, stir 0.5-1h;
Then slowly heat up, after rising to 170-190 DEG C, insulation reaction 1-2h, adds 6-8 part function monomer;
Then be warming up to 190-220 DEG C, start acid number and the viscosity of measuring reaction system, until acid number is 11-12mgKOH/g and viscosity is after 1500-2000mpa.s/25 DEG C, start cooling, after being cooled to 120-150 DEG C, add 12-16 part letdown solvent dun, stir 0.5-1h, discharging.
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| CN201510687927.1A CN105254861A (en) | 2015-10-21 | 2015-10-21 | Alkyd resin for high-solid low-viscosity PU (polyurethane) gloss topcoat and preparation method of alkyd resin |
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| CN201510687927.1A CN105254861A (en) | 2015-10-21 | 2015-10-21 | Alkyd resin for high-solid low-viscosity PU (polyurethane) gloss topcoat and preparation method of alkyd resin |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105669961A (en) * | 2016-02-02 | 2016-06-15 | 成都杰晟蜀邦新材料科技有限公司 | Highly branched alkyd resin with high solid content and low viscosity and preparation method of alkyd resin |
| CN106590371A (en) * | 2016-11-24 | 2017-04-26 | 帝斯曼先达合成树脂(佛山)有限公司 | Low-VOC matte alkyd resin and synthesis method thereof |
| CN106700047A (en) * | 2016-11-14 | 2017-05-24 | 佛山科学技术学院 | Modified high-solid low-viscous polyester resin, preparation method of modified high-solid low-viscous polyester resin, and application of modified high-solid low-viscous polyester resin in coating |
| CN107858090A (en) * | 2017-09-30 | 2018-03-30 | 合众（佛山）化工有限公司 | A kind of net taste type polyurethane varnish of high solid |
| CN107858091A (en) * | 2017-09-30 | 2018-03-30 | 合众（佛山）化工有限公司 | A kind of net taste type alcohol acid and polyurethane white finish paint of high solid |
| CN109593186A (en) * | 2018-11-22 | 2019-04-09 | 广东百川化工有限公司 | High solid environment-friendly alkide resin and preparation method |
| CN115850669A (en) * | 2022-12-15 | 2023-03-28 | 肇庆市国涂新材料有限公司 | Preparation method of solvent-free alkyd resin |
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| CN103030792A (en) * | 2012-12-27 | 2013-04-10 | 合众（佛山）化工有限公司 | Preparation method of scratch-resistant and high-gloss alkyd resin |
| CN103160099A (en) * | 2013-02-22 | 2013-06-19 | 嘉宝莉化工集团股份有限公司 | Modified alkyd resin and preparation method thereof and two-component primer |
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| CN103030792A (en) * | 2012-12-27 | 2013-04-10 | 合众（佛山）化工有限公司 | Preparation method of scratch-resistant and high-gloss alkyd resin |
| CN103160099A (en) * | 2013-02-22 | 2013-06-19 | 嘉宝莉化工集团股份有限公司 | Modified alkyd resin and preparation method thereof and two-component primer |
| CN104130387A (en) * | 2014-05-29 | 2014-11-05 | 上海展辰涂料有限公司 | Modified high hardness odorless light alkyd resin adopting glycidyl tertcarbonate and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669961A (en) * | 2016-02-02 | 2016-06-15 | 成都杰晟蜀邦新材料科技有限公司 | Highly branched alkyd resin with high solid content and low viscosity and preparation method of alkyd resin |
| CN106700047A (en) * | 2016-11-14 | 2017-05-24 | 佛山科学技术学院 | Modified high-solid low-viscous polyester resin, preparation method of modified high-solid low-viscous polyester resin, and application of modified high-solid low-viscous polyester resin in coating |
| CN106590371A (en) * | 2016-11-24 | 2017-04-26 | 帝斯曼先达合成树脂(佛山)有限公司 | Low-VOC matte alkyd resin and synthesis method thereof |
| CN107858090A (en) * | 2017-09-30 | 2018-03-30 | 合众（佛山）化工有限公司 | A kind of net taste type polyurethane varnish of high solid |
| CN107858091A (en) * | 2017-09-30 | 2018-03-30 | 合众（佛山）化工有限公司 | A kind of net taste type alcohol acid and polyurethane white finish paint of high solid |
| CN109593186A (en) * | 2018-11-22 | 2019-04-09 | 广东百川化工有限公司 | High solid environment-friendly alkide resin and preparation method |
| CN115850669A (en) * | 2022-12-15 | 2023-03-28 | 肇庆市国涂新材料有限公司 | Preparation method of solvent-free alkyd resin |
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