CN114350235A - Special unsaturated polyester material for curtain coating - Google Patents
Special unsaturated polyester material for curtain coating Download PDFInfo
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- CN114350235A CN114350235A CN202111582605.2A CN202111582605A CN114350235A CN 114350235 A CN114350235 A CN 114350235A CN 202111582605 A CN202111582605 A CN 202111582605A CN 114350235 A CN114350235 A CN 114350235A
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- unsaturated polyester
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- curtain coating
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Abstract
The invention discloses an unsaturated polyester material special for curtain coating, which comprises unsaturated polyester resin, inorganic filler, a flatting agent, a defoaming agent, a rheological additive, a polymerization inhibitor and the like, and the weight percentage is as follows: 36-75% of PE resin, 0.2-0.4% of dispersing agent, 2-5% of active solvent, 20-55% of inorganic filler, 0.2-1.2% of rheological additive, 0.1-3% of defoaming agent, 0.1-2% of flatting agent and 0.2-0.8% of 5% of polymerization inhibitor. The invention also discloses a preparation method of the special unsaturated polyester material for curtain coating. The unsaturated polyester material special for curtain coating has excellent leveling property and fullness for large-batch and large-area plate-type families, and has the characteristics of quick defoaming, long construction time, easiness in sanding and the like. The utilization of the active solvent reduces VOC emission, meets the requirement of environmental protection, and simultaneously can ensure quality and improve working efficiency.
Description
Technical Field
The invention relates to an unsaturated polyester material special for curtain coating, in particular to a novel unsaturated polyester material which has excellent leveling property and fullness for large-batch and large-area plate-type families, and has the characteristics of quick defoaming, long construction time, easiness in sand grinding and the like.
Background
The problems of poor defoaming capability, short construction time and poor sanding property of the flow-coated unsaturated polyester material on the market generally exist. The special unsaturated polyester material for curtain coating can solve the problems, thereby widening the construction latitude of the unsaturated polyester material for curtain coating, and achieving the purposes of improving the production efficiency and reducing the environmental pollution.
Disclosure of Invention
The invention aims to provide a special unsaturated polyester material for curtain coating, which solves the problems of poor defoaming capability, short construction time, poor sanding property and the like of the curtain coating unsaturated polyester materials on the market, and achieves the purposes of improving the production efficiency and reducing the environmental pollution.
The purpose of the invention is realized by the following technical scheme:
the special unsaturated polyester material for curtain coating comprises unsaturated polyester resin, inorganic filler, a leveling agent, a defoaming agent, a rheological additive, a polymerization inhibitor and the like, and the weight percentages are as follows: 36-75% of PE resin, 0.2-0.4% of dispersing agent, 2-5% of active solvent, 20-55% of inorganic filler, 0.2-1.2% of rheological additive, 0.1-3% of defoaming agent, 0.1-2% of flatting agent and 0.2-0.8% of 5% of polymerization inhibitor.
Further, the unsaturated polyester resin is an air-drying unsaturated polyester resin; the dispersant is preferably a solution of an acid group-containing interpolymer.
Further, the active solvent is styrene.
Further, the inorganic filler is titanium dioxide, barium white powder, transparent powder, talcum powder and heavy calcium.
And in addition, the rheological additive is non-treatment type fumed silica or bentonite.
Further, the defoaming agent is a non-silicon defoaming polymer.
Further, the leveling agent is a polyacrylate compound.
Further, the polymerization inhibitor is hydroquinone.
Further, the stormwater viscosity of the unsaturated polyester material is 80-120 KU/30 ℃.
Further, the preparation method of the unsaturated polyester material comprises the following steps:
s1, weighing the unsaturated polyester resin, a polymerization inhibitor, a dispersing agent, a defoaming agent, a rheological aid, an inorganic filler, a flatting agent and an active solvent according to a ratio;
s2, sequentially mixing the unsaturated polyester resin, a polymerization inhibitor, a dispersing agent, a defoaming agent, a rheological aid, a leveling agent and an inorganic filler to obtain a solution I;
and S3, mixing the active solvent with the solution I to obtain the unsaturated polyester material.
The invention has the beneficial effects that:
the special unsaturated polyester material for curtain coating can provide excellent leveling property and fullness for large-batch and large-area plate-type families, and has the characteristics of quick defoaming, long construction time, easiness in sanding and the like.
The application range is greatly widened, the efficiency is greatly improved, and the environmental pollution is reduced. The problems of poor defoaming capability, short construction time, poor sanding property and the like of a common curtain coating unsaturated polyester material can be well solved by the proportion of the unsaturated polyester resin, the active solvent, the inorganic filler and the functional auxiliary agent.
Detailed Description
The technical solutions of the present invention are described in further detail below, but the scope of the present invention is not limited to the following.
In the following embodiments, 8301 of the Fangxin chemical company is selected as the unsaturated polyester resin, styrene is selected as styrene of Chengdu Xinghuang petrochemical, MT1500 transparent powder of the saint chemical industry of Fushan city, titanium white R-996 of the Tinopon boensis industry of Sichuan city are selected as the inorganic filler, 1250-mesh talcum powder of Guilin Guiguan Guangdong company is selected as the talcum powder, heavy calcium is selected as HF-101 of Chengdu general technology company, 228 of the Yinhai Yifeng chemical industry of the Nanhai Yifeng chemical company of the Fushan city is selected as the barium white powder, BS-1C of the Chiyobo hong clay chemical industry of the Zhejiang river is selected as the rheological agent, gas-phase silica is selected as Dessoga gas-phase silica (white carbon black) A200, BYK-W995 of the BYK company is selected as the dispersant, a non-silicon defoaming polymer AFCONA2020 of the AFCONA company is selected as the defoaming agent, EFKA3777 polyacrylate compound of the EFKA company is selected as the leveling agent, and hydroquinone of the French Roya company is selected as the polymerization inhibitor.
Example 1
The formula is as follows: 38 parts of air-drying unsaturated polyester resin, 0.5 part of polymerization inhibitor, 0.2 part of dispersant and active solvent: 4.1 parts of styrene, inorganic fillers including 10 parts of titanium dioxide, 33 parts of barium powder, 10 parts of talcum powder and an anti-settling agent: 0.5 part of fumed silica, bentonite: 1 part, defoaming agent: 1.4 parts of non-silicon defoaming polymer and 1.3 parts of leveling agent polyacrylate compound.
The manufacturing process comprises the following steps: air-dried unsaturated polyester resin is put into the reactor → is stirred at low speed → polymerization inhibitor, dispersant, defoamer and flatting agent are added in sequence → is dispersed at medium speed for 8 minutes → gas phase silicon dioxide, bentonite, titanium pigment, barium white powder and talcum powder are added in sequence → are dispersed at high speed for 20 minutes until the fineness is less than or equal to 50 microns → styrene is added and stirred at low speed.
The obtained special unsaturated polyester material for curtain coating has the appearance that: white viscous liquid, the stormer viscosity of the original paint is 105KU at 25 ℃, the construction viscosity of a No. 2 cup is 18 seconds, the curtain is stable without being broken, and the surface drying time of the paint film sprayed and coated is less than or equal to 60 minutes; the actual drying time is less than or equal to 12 hours at 25 ℃; the flow coating plate surface has good leveling property, defoaming is carried out after the plate surface is off-line, and the fullness is good; the hardness is more than or equal to H; adhesion (cross-hatch method): second-stage; gel time: 130 min; limit of harmful substances (soluble lead, cadmium, chromium, mercury): not detected; sandability (12 h): the polishing is easy; the covering power is strong; the black edge shielding capability is strong.
Example 2
The formula is as follows: 45 parts of air-drying unsaturated polyester resin, 0.7 part of polymerization inhibitor, 0.2 part of dispersant and active solvent: 4.5 parts of styrene, inorganic fillers including 12 parts of titanium dioxide, 27 parts of heavy calcium carbonate, 8 parts of talcum powder, and an anti-settling agent: 0.6 part of fumed silica, and an antifoaming agent: 1.2 parts of non-silicon defoaming polymer and 0.8 part of leveling agent polyacrylate compound.
The manufacturing process comprises the following steps: air-dried unsaturated polyester resin is put into the reactor → is stirred at low speed → polymerization inhibitor, dispersant, defoamer and flatting agent are added in sequence → is dispersed at medium speed for 10 minutes → fumed silica, titanium pigment, coarse whiting and talcum powder are added in sequence → are dispersed at high speed for 20 minutes until the fineness is less than or equal to 50 microns → styrene is added and stirred at low speed.
The obtained special unsaturated polyester material for curtain coating has the appearance that: white viscous liquid, the stormer viscosity of the original paint is 98KU2# cup construction viscosity at 25 ℃ for 22 seconds, the curtain is stable without being broken, and the surface drying time of the curtain-coated paint film is less than or equal to 60 minutes; the actual drying time is less than or equal to 12 hours at 25 ℃; leveling property, quick defoaming and good fullness; the hardness is more than or equal to 2H; adhesion (cross-hatch method): second-stage; gel time: 120 min; limit of harmful substances (soluble lead, cadmium, chromium, mercury): not detected; sandability (12 h): the polishing is easy; the covering power is strong; the black edge shielding capability is strong.
Example 3
The formula is as follows: 61 parts of air-drying unsaturated polyester resin, 0.8 part of polymerization inhibitor, 0.1 part of dispersant and active solvent: 4.3 parts of styrene, 26 parts of transparent powder as inorganic filler, 6 parts of talcum powder, and an anti-settling agent: 0.5 part of fumed silica, and an antifoaming agent: 0.8 part of non-silicon defoaming polymer and 0.5 part of leveling agent polyacrylate compound.
The manufacturing process comprises the following steps: putting air-dried unsaturated polyester resin → stirring at low speed, adding polymerization inhibitor, dispersant, defoamer and flatting agent in sequence → dispersing at medium speed for 8 minutes → adding gas-phase silicon dioxide, transparent powder, talcum powder → dispersing at high speed for 15 minutes until fineness is less than or equal to 40 microns → adding styrene and stirring at low speed.
The obtained special unsaturated polyester material for curtain coating has the appearance that: the stormer viscosity of the raw paint is 85KU at 25 ℃, the construction viscosity of a No. 2 cup is 25 seconds, the curtain is stable without being broken, and the surface drying time of the paint film sprayed and coated is less than or equal to 60 minutes; the actual drying time is less than or equal to 12 hours at 25 ℃; leveling property, quick defoaming and good fullness; the hardness is more than or equal to H; adhesion (cross-hatch method): second-stage; gel time: 120 min; limit of harmful substances (soluble lead, cadmium, chromium, mercury): not detected; sandability (12 h): the polishing is easy; good transparency and strong sense of permeability.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The special unsaturated polyester material for curtain coating is characterized by comprising unsaturated polyester resin, inorganic filler, a flatting agent, a defoaming agent, a rheological additive, a polymerization inhibitor and the like, wherein the weight percentage of the unsaturated polyester material is as follows: 36-75% of unsaturated polyester resin, 0.2-0.4% of dispersing agent, 2-5% of active solvent, 20-55% of inorganic filler, 0.2-1.2% of rheological additive, 0.1-3% of defoaming agent, 0.1-2% of flatting agent and 0.2-0.8% of 5% of polymerization inhibitor.
2. The special unsaturated polyester material for curtain coating according to claim 1, wherein the unsaturated polyester resin is an air-dried unsaturated polyester resin; the dispersant is preferably a solution of an acid group-containing interpolymer.
3. The unsaturated polyester material special for curtain coating according to claim 1, wherein the active solvent is styrene.
4. The special unsaturated polyester material for curtain coating according to claim 1, wherein the inorganic filler is titanium dioxide, barium white powder, transparent powder, talcum powder, and heavy calcium.
5. The unsaturated polyester material special for curtain coating according to claim 1, wherein the rheological additive is non-treatment type fumed silica or bentonite.
6. The special unsaturated polyester flow coating material as claimed in claim 1, wherein the defoaming agent is a non-silicon defoaming polymer.
7. The special unsaturated polyester flow coating material as claimed in claim 1, wherein the leveling agent is polyacrylate compound.
8. The special unsaturated polyester material for curtain coating according to claim 1, wherein the polymerization inhibitor is hydroquinone.
9. The high-solid unsaturated polyester material according to claim 1, wherein said unsaturated polyester material has a stork viscosity of 80 to 120KU/30 ℃.
10. The method for preparing an unsaturated polyester material according to any one of claims 1 to 10, comprising the steps of:
s1, weighing the unsaturated polyester resin, a polymerization inhibitor, a dispersing agent, a defoaming agent, a rheological aid, an inorganic filler, a flatting agent and an active solvent according to a ratio;
s2, sequentially mixing the unsaturated polyester resin, a polymerization inhibitor, a dispersing agent, a defoaming agent, a rheological aid, a leveling agent and an inorganic filler to obtain a solution I;
and S3, mixing the active solvent with the solution I to obtain the unsaturated polyester material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582605.2A CN114350235A (en) | 2021-12-22 | 2021-12-22 | Special unsaturated polyester material for curtain coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582605.2A CN114350235A (en) | 2021-12-22 | 2021-12-22 | Special unsaturated polyester material for curtain coating |
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| Publication Number | Publication Date |
|---|---|
| CN114350235A true CN114350235A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111582605.2A Pending CN114350235A (en) | 2021-12-22 | 2021-12-22 | Special unsaturated polyester material for curtain coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216211A (en) * | 2022-07-19 | 2022-10-21 | 佛山市顺德区鸿昌涂料实业有限公司 | Unsaturated polyester primer for complex modeling furniture and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911589A (en) * | 2012-11-20 | 2013-02-06 | 成都展辰化工有限公司 | Special anti-absorption unsaturated polyester white primer for density board |
| CN103589246A (en) * | 2012-08-16 | 2014-02-19 | 展辰涂料集团股份有限公司 | Polyethylene paint |
| CN103937386A (en) * | 2014-04-10 | 2014-07-23 | 上海长润发涂料有限公司 | Unsaturated polyester coated white primer |
| CN104893518A (en) * | 2015-05-28 | 2015-09-09 | 展辰涂料集团股份有限公司 | Medium density fiberboard undercoat |
| CN111087903A (en) * | 2019-12-23 | 2020-05-01 | 成都展辰涂料有限公司 | High-solid-content unsaturated polyester material and preparation method thereof |
-
2021
- 2021-12-22 CN CN202111582605.2A patent/CN114350235A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589246A (en) * | 2012-08-16 | 2014-02-19 | 展辰涂料集团股份有限公司 | Polyethylene paint |
| CN102911589A (en) * | 2012-11-20 | 2013-02-06 | 成都展辰化工有限公司 | Special anti-absorption unsaturated polyester white primer for density board |
| CN103937386A (en) * | 2014-04-10 | 2014-07-23 | 上海长润发涂料有限公司 | Unsaturated polyester coated white primer |
| CN104893518A (en) * | 2015-05-28 | 2015-09-09 | 展辰涂料集团股份有限公司 | Medium density fiberboard undercoat |
| CN111087903A (en) * | 2019-12-23 | 2020-05-01 | 成都展辰涂料有限公司 | High-solid-content unsaturated polyester material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216211A (en) * | 2022-07-19 | 2022-10-21 | 佛山市顺德区鸿昌涂料实业有限公司 | Unsaturated polyester primer for complex modeling furniture and preparation method thereof |
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Application publication date: 20220415 |