CN104231240A - Preparation method of polyester resin with high levelling property - Google Patents
Preparation method of polyester resin with high levelling property Download PDFInfo
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- CN104231240A CN104231240A CN201310249519.9A CN201310249519A CN104231240A CN 104231240 A CN104231240 A CN 104231240A CN 201310249519 A CN201310249519 A CN 201310249519A CN 104231240 A CN104231240 A CN 104231240A
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- preparation
- polyester resin
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- neopentyl glycol
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Abstract
The invention relates to a preparation method of polyester resin with high levelling property, belonging to the technical field of outdoor powder coating production and particularly belonging to the technical field of processing technologies for polyester resin for producing powder coatings. The preparation method comprises the steps of condensing polyalcohol and polyacid under the action of monobutyltin oxide as a catalyst, and continuously carrying out esterification reaction through removing water generated by reaction to obtain macromolecular polyester resin with a certain polymerization degree. When the polyester resin produced by using the preparation method disclosed by the invention is used for producing an outdoor powder coating, the levelling property of the sprayed surface of a product is extremely good, and the glossiness of the sprayed surface of the product can be up to larger than 95.
Description
Technical field
The present invention relates to the preparation method of high-leveling vibrin, belong to outdoor powder coating production technical field, particularly produce the technology field of vibrin used for powder coating.
Background technology
Current outdoor powder coating has mainly been focused on weathering resistance and have ignored levelling property, thus discomfort is fit to do spraying aluminum profile and the good spraying of surface requirements levelling.
Summary of the invention
The object of the present invention is to provide a kind of preparation method that can be used for the fabulous high-leveling vibrin of surface requirements levelling.
The present invention includes following steps:
1) first temperature of reaction kettle is risen to 80 DEG C, then drop into neopentyl glycol, after neopentyl glycol is melted, add terephthalic acid, TriMethylolPropane(TMP) and Mono-n-butyltin;
2) feed intake terminate after temperature of reaction kettle is risen to 190 DEG C after, rise to 245 DEG C by 2-3 DEG C/15min temperature rise rate, at 245 DEG C, react 100-200min;
3) at 245 DEG C, 120-180min is reacted after dropping into hexanodioic acid and m-phthalic acid;
4) under 0.088-0.090mPa vacuum, polycondensation 180-240min is carried out;
5) temperature of reaction is down to 180 DEG C and adds tri-phenyl-phosphorus bromide, reaction 30min discharging;
6) pack after compressing tablet;
Each raw material of described reaction process feed intake mass ratio be neopentyl glycol 50-55 part, to this dioctyl phthalate 40-50 part, m-phthalic acid 15-20 part, hexanodioic acid 10-15 part, Mono-n-butyltin 0.2-0.4 part, tri-phenyl-phosphorus bromide 1-3 part.
Advantage of the present invention is: the present invention is formed by polyvalent alcohol and polyprotonic acid condensation under Mono-n-butyltin is the effect of catalyzer, is made esterification constantly carry out by the removal of water generation reaction, thus obtains the macromolecule polyester resin of certain polymerization degree.Vibrin the inventive method produced, for the production of the powder coating of open air, can make that product sprayed surface levelling is fabulous, gloss can reach more than 95.
Embodiment
One, weigh:
Take neopentyl glycol 50-55 part respectively, to this dioctyl phthalate 40-50 part, m-phthalic acid 15-20 part, hexanodioic acid 10-15 part, Mono-n-butyltin 0.2-0.4 part, tri-phenyl-phosphorus bromide 1-3 part.
Two, preparation method of the present invention:
1, first temperature of reaction kettle is risen to 80 DEG C, then drop into neopentyl glycol, after neopentyl glycol is melted, add terephthalic acid, TriMethylolPropane(TMP) and Mono-n-butyltin;
2, feed intake terminate after temperature of reaction kettle is risen to 190 DEG C after, rise to 245 DEG C by 2-3 DEG C/15min temperature rise rate, at 245 DEG C, react 100-200min;
3, at 245 DEG C, 120-180min is reacted after dropping into hexanodioic acid and m-phthalic acid;
4, under 0.088-0.090mPa vacuum, polycondensation 180-240min is carried out;
5, temperature of reaction is down to 180 DEG C and adds tri-phenyl-phosphorus bromide, reaction 30min discharging;
6, pack after compressing tablet.
Claims (1)
1. the preparation method of high-leveling vibrin, is characterized in that, comprises the following steps:
1) first temperature of reaction kettle is risen to 80 DEG C, then drop into neopentyl glycol, after neopentyl glycol is melted, add terephthalic acid, TriMethylolPropane(TMP) and Mono-n-butyltin;
2) feed intake terminate after temperature of reaction kettle is risen to 190 DEG C after, rise to 245 DEG C by 2-3 DEG C/15min temperature rise rate, at 245 DEG C, react 100-200min;
3) at 245 DEG C, 120-180min is reacted after dropping into hexanodioic acid and m-phthalic acid;
4) under 0.088-0.090mPa vacuum, polycondensation 180-240min is carried out;
5) temperature of reaction is down to 180 DEG C and adds tri-phenyl-phosphorus bromide, reaction 30min discharging;
6) pack after compressing tablet;
Each raw material of described reaction process feed intake mass ratio be neopentyl glycol 50-55 part, to this dioctyl phthalate 40-50 part, m-phthalic acid 15-20 part, hexanodioic acid 10-15 part, Mono-n-butyltin 0.2-0.4 part, tri-phenyl-phosphorus bromide 1-3 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249519.9A CN104231240A (en) | 2013-06-23 | 2013-06-23 | Preparation method of polyester resin with high levelling property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249519.9A CN104231240A (en) | 2013-06-23 | 2013-06-23 | Preparation method of polyester resin with high levelling property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104231240A true CN104231240A (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310249519.9A Pending CN104231240A (en) | 2013-06-23 | 2013-06-23 | Preparation method of polyester resin with high levelling property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104231240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942801A (en) * | 2019-03-25 | 2019-06-28 | 黄山市向荣新材料有限公司 | A kind of MDF material high-leveling 50:50 polyester resin and the preparation method and application thereof |
| CN111253840A (en) * | 2020-04-11 | 2020-06-09 | 福建万安实业集团有限公司 | Stamping-grinding-resistant sand mold wood grain transfer powder coating and preparation method thereof |
-
2013
- 2013-06-23 CN CN201310249519.9A patent/CN104231240A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942801A (en) * | 2019-03-25 | 2019-06-28 | 黄山市向荣新材料有限公司 | A kind of MDF material high-leveling 50:50 polyester resin and the preparation method and application thereof |
| CN111253840A (en) * | 2020-04-11 | 2020-06-09 | 福建万安实业集团有限公司 | Stamping-grinding-resistant sand mold wood grain transfer powder coating and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |