CN113881315A - Hyperbranched modified epoxy powder coating and preparation method thereof - Google Patents
Hyperbranched modified epoxy powder coating and preparation method thereof Download PDFInfo
- Publication number
- CN113881315A CN113881315A CN202111264378.9A CN202111264378A CN113881315A CN 113881315 A CN113881315 A CN 113881315A CN 202111264378 A CN202111264378 A CN 202111264378A CN 113881315 A CN113881315 A CN 113881315A
- Authority
- CN
- China
- Prior art keywords
- hyperbranched
- powder coating
- modified epoxy
- resin
- epoxy powder
- 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.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 85
- 239000011248 coating agent Substances 0.000 title claims abstract description 79
- 239000000843 powder Substances 0.000 title claims abstract description 75
- 239000004593 Epoxy Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 41
- 239000003822 epoxy resin Substances 0.000 claims abstract description 30
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 26
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 238000007872 degassing Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 239000004843 novolac epoxy resin Substances 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 4
- -1 curing accelerator Substances 0.000 claims abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 11
- 229920006150 hyperbranched polyester Polymers 0.000 claims description 11
- 239000004645 polyester resin Substances 0.000 claims description 10
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000004611 light stabiliser Substances 0.000 claims description 9
- 239000012745 toughening agent Substances 0.000 claims description 8
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 8
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000002086 nanomaterial Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 229920006334 epoxy coating Polymers 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 6
- 229920006337 unsaturated polyester resin Polymers 0.000 description 4
- 239000008199 coating composition Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 229920000587 hyperbranched polymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a hyperbranched modified epoxy powder coating and a preparation method thereof, wherein the hyperbranched modified epoxy powder coating contains 1-10 wt% of hyperbranched resin except epoxy resin, curing agent, curing accelerator, pigment and filler, flatting agent, degassing agent, flow accelerator and flexibilizer, but does not contain novolac epoxy resin; firstly, mixing hyperbranched resin in the hyperbranched modified epoxy powder coating, filler and flow promoter in the formula of the hyperbranched modified epoxy powder coating in a high-speed mixer for pre-dispersing uniformly, then mixing the mixture with other raw materials uniformly, and obtaining the hyperbranched modified epoxy powder coating after melt extrusion, tabletting, grinding and screening. The invention utilizes the advantages of the hyperbranched resin to realize the remarkable improvement of the flexibility and the adhesive force of the hyperbranched modified epoxy coating, increases the antioxidant to remarkably improve the oxidation resistance, the heat resistance and the aging resistance of the epoxy powder coating cured at high temperature, and ensures the reliable application of the epoxy powder coating in a high-temperature curing environment.
Description
Technical Field
The invention relates to a hyperbranched modified powder coating, in particular to a hyperbranched modified epoxy powder coating and a preparation method thereof, and belongs to the technical field of powder coatings.
Background
The prior research shows that the epoxy coating has good adhesive force, flexibility and corrosion resistance, but the main technical problem is that the coating is brittle, the prior art mainly adopts novolac epoxy resin for modification and improvement, the novolac epoxy resin provides a high-crosslinking-density three-dimensional structure for a coating system, good thermal stability and mechanical strength are formed, and the brittleness of the epoxy coating is improved to a certain extent.
The prior art shows that the hyperbranched polymer has a highly branched molecular structure, is not easy to tangle among molecules, has low viscosity, and has excellent flowing property, hydrophilicity and film-forming property. Chinese patents CN201310039170.6, CN201210492761.4 and CN201310043488.1 develop carboxyl-terminated hyperbranched polyester, and are applied to solvent paint, and prove that the heat resistance, flexibility and cold and heat change resistance of the paint are improved. Chinese patent CN2015103503488 discloses a powder coating for precoated metal coils and a preparation method and application thereof, successfully uses solid carboxyl-terminated hyperbranched polyester resin in the powder coating, and realizes the effects of high curing speed, excellent coating leveling property, uniform thickness and the like of the powder coating.
The hyperbranched epoxy resin and the hyperbranched unsaturated polyester resin are liquid at normal temperature due to low viscosity, so that the hyperbranched epoxy resin and the hyperbranched unsaturated polyester resin are not applied to the prior art of powder coating at present.
Disclosure of Invention
The invention aims to solve the problems of obvious coating brittleness of the existing epoxy powder coating and the coating thereof by utilizing a hyperbranched resin material technology and through technical innovation aiming at the existing technical problems of the existing epoxy powder coating and the epoxy novolac resin modified epoxy powder coating, and the quality and the performance of the epoxy coating are obviously improved.
The invention is realized by the following technical scheme:
a hyperbranched modified epoxy powder coating contains 1-10 wt% of hyperbranched resin except phenolic epoxy resin, curing agent, curing accelerator, pigment and filler, flatting agent, degassing agent, flow accelerator and flexibilizer.
The hyperbranched resin is hyperbranched epoxy resin or hyperbranched polyester resin, wherein:
the hyperbranched resin is hyperbranched epoxy resin, and the epoxy value of the hyperbranched epoxy resin is 0.15 +/-0.05 mol/100 g;
the hyperbranched resin is hyperbranched polyester resin, the acid value of the hyperbranched polyester resin is 60-80 mg KOH/g, and a novel epoxy/polyester mixed system is constructed by adopting the hyperbranched polyester resin and the epoxy resin, so that the using amount of common unsaturated polyester resin can be greatly reduced, and the adhesive force and the flexibility of a mixed system powder coating can be greatly improved.
The pigment and filler comprises 5-30 wt% of flaky zinc powder, and the flaky zinc powder is added to form a heavy-duty anticorrosive hyperbranched modified epoxy powder coating, such as a hyperbranched modified epoxy zinc-based powder coating, so that the problem of performance reduction of the existing epoxy zinc-based powder coating, such as adhesive force, coating impact resistance and the like, is solved.
The hyperbranched modified epoxy powder coating also contains 0.1-1 wt% of antioxidant, and the antioxidant is preferably hindered phenol main antioxidant or a mixture of hindered phenol main antioxidant and low-volatility organic phosphite auxiliary antioxidant. The hyperbranched modified epoxy powder coating also comprises 0.1 to 1 weight percent of antioxidant, 0.1 to 0.5 weight percent of ultraviolet absorber and 0.1 to 1 weight percent of light stabilizer; the antioxidant is preferably a hindered phenol main antioxidant or a mixture of a hindered phenol main antioxidant and a low-volatility organic phosphite auxiliary antioxidant; the light stabilizer is preferably a hindered amine light stabilizer; the ultraviolet light absorber is preferably phenol-substituted benzotriazole ultraviolet light absorbers. The addition of the antioxidant can improve the problem of insufficient heat resistance of the traditional epoxy powder coating, and the hyperbranched resin is modified, so that the novel hyperbranched modified epoxy powder coating can be reliably cured under the high-temperature curing condition of 180 ℃ or above without the problem of thermal oxidation, and in addition, the addition of the ultraviolet light absorber and the light stabilizer can simultaneously ensure that the hyperbranched modified epoxy powder coating has more reliable light resistance and durability. The hyperbranched modified epoxy powder coating can remove the curing accelerator, so that the problem that the coating is subjected to high-temperature oxidation after the coating is rapidly cured at low temperature is solved.
The preparation method of the hyperbranched modified epoxy powder coating comprises the following steps:
firstly, mixing hyperbranched resin in hyperbranched modified epoxy powder coating, filler and flow promoter in a hyperbranched modified epoxy powder coating formula together in a high-speed mixer for uniform pre-dispersion, wherein the mixer is vertical mixing equipment commonly used for powder coating, after a pot cover of the mixer is opened, the filler and the flow promoter are firstly added, then the hyperbranched resin is sprayed on the surface of the mixture of the filler and the flow promoter in a high-pressure spraying mode at the mixing speed of not higher than 100rpm, the pot cover is covered after the hyperbranched resin is sprayed, and the mixing speed of not lower than 300rpm is mixed for 1-2 min; and then opening the pot cover, sequentially adding other raw materials in the formula of the hyperbranched modified epoxy powder coating, uniformly mixing according to a conventional process, and then performing melt extrusion, tabletting, grinding and screening to obtain the hyperbranched modified epoxy powder coating.
The invention has the beneficial effects that:
aiming at the technical problems of epoxy powder coatings and coatings thereof, the invention utilizes the latest technical achievement of hyperbranched resin, applies liquid hyperbranched resin to the modification of the existing epoxy powder coatings through creative labor, forms a new epoxy powder coating product through formulation innovation, utilizes the advantages of hyperbranched resin, realizes the remarkable improvement of the flexibility and adhesive force of the hyperbranched modified epoxy coating, increases antioxidant, remarkably improves the oxidation resistance, heat resistance and aging resistance of the epoxy powder coating cured at high temperature, and ensures the reliable application of the epoxy powder coating in a high-temperature curing environment. The coating detection result proves that the performances of the coating such as adhesive force, impact resistance, weather resistance and the like are obviously improved.
The embodiments and effects of the present invention will be further illustrated with reference to the following examples.
Example 1
The hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 25-60% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 0.2-2% of toughening agent PVB, 0.1-0.5% of degassing agent, 0.1-0.2% of flow accelerator and the balance filler.
Comparative example 1
The epoxy powder coating comprises the following components in parts by weight: 25-60% of E-12 epoxy resin, 1-10% of novolac epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 0.2-2% of toughening agent PVB, 0.1-0.5% of degassing agent, 0.1-0.2% of flow accelerator and the balance filler.
Example 2
The hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 3-30% of flaky zinc powder, 0.1-10% of nano material, 0-30% of filler and 0.1-5% of other functional auxiliary agent.
Comparative example 2
The epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of novolac epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 3-30% of flaky zinc powder, 0.1-10% of nano material, 0-30% of filler and 0.1-5% of other functional additives.
Example 3
The hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 25-40% of E-12 epoxy resin, 1-10% of hyperbranched polyester resin, 1-5% of curing agent, 5041-3% of flatting agent, 0.2-2% of toughening agent PVB, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter and the balance of pigment and filler.
Comparative example 3
The epoxy powder coating comprises the following components in parts by weight: 25-30% of E-12 epoxy resin, 25-30% of unsaturated polyester resin, 5041-3% of flatting agent, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter and the balance of pigment and filler.
Example 4
The hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 1-3% of flatting agent 5031, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter, 3-30% of flaky zinc powder, 0.1-1% of antioxidant, 0.1-0.5% of ultraviolet light absorber, 0.1-1% of light stabilizer, 0.2-2% of toughening agent PVB and the balance of filler.
Comparative example 4
The epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of novolac epoxy resin, 5-15% of curing agent, 1-3% of flatting agent 5031, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter, 3-30% of flaky zinc powder, 0.2-2% of toughening agent PVB and the balance of filler.
Example 5
Firstly, mixing hyperbranched resin in hyperbranched modified epoxy powder coating, filler and flow promoter in a hyperbranched modified epoxy powder coating formula together in a high-speed mixer for uniform pre-dispersion, wherein the mixer is vertical mixing equipment commonly used for powder coating, after a pot cover of the mixer is opened, the filler and the flow promoter are firstly added, then the hyperbranched resin is sprayed on the surface of the mixture of the filler and the flow promoter in a high-pressure spraying mode at the mixing speed of not higher than 100rpm, the pot cover is covered after the hyperbranched resin is sprayed, and the mixing speed of not lower than 300rpm is mixed for 1-2 min;
then opening the pot cover, sequentially adding other raw materials in the hyperbranched modified epoxy powder coating formula, and uniformly mixing according to a conventional process;
and then the hyperbranched modified epoxy powder coating is prepared after melting extrusion, tabletting, grinding and screening.
Table 1 shows the results of tests conducted on examples and comparative examples according to thermosetting powder coating (HG/T2006-one 2006). The data and comparison in table 1 show that the coating physicochemical properties of the examples are significantly improved compared to the corresponding comparative examples.
TABLE 1 Performance test results of hyperbranched modified epoxy powder coating coatings of the examples
Claims (10)
1. A hyperbranched modified epoxy powder coating, comprising: epoxy resin, curing agent, curing accelerator, pigment filler, flatting agent, degasifying agent, flow accelerator and flexibilizer, and is characterized in that:
1 to 10 weight percent of hyperbranched resin is also contained, but no novolac epoxy resin is contained; the hyperbranched resin is hyperbranched epoxy resin or hyperbranched polyester resin, wherein:
the hyperbranched resin is hyperbranched epoxy resin, and the epoxy value of the hyperbranched epoxy resin is 0.15 +/-0.05 mol/100 g;
the hyperbranched resin is hyperbranched polyester resin, and the acid value of the hyperbranched polyester resin is 60-80 mg KOH/g.
2. The hyperbranched modified epoxy powder coating of claim 1, wherein: the pigment filler contains 5-30 wt% of flaky zinc powder.
3. The hyperbranched modified epoxy powder coating of claim 1, wherein: the antioxidant also comprises 0.1-1 wt% of antioxidant, and the antioxidant is preferably a hindered phenol main antioxidant or a mixture of a hindered phenol main antioxidant and a low-volatility organic phosphite auxiliary antioxidant.
4. The hyperbranched modified epoxy powder coating of claim 1, wherein: also contains 0.1 to 1 weight percent of antioxidant, 0.1 to 0.5 weight percent of ultraviolet absorber and 0.1 to 1 weight percent of light stabilizer; the antioxidant is preferably a hindered phenol main antioxidant or a mixture of a hindered phenol main antioxidant and a low-volatility organic phosphite auxiliary antioxidant; the light stabilizer is a hindered amine light stabilizer; the ultraviolet absorber is a phenol-substituted benzotriazole ultraviolet absorber.
5. The hyperbranched modified epoxy powder coating of claim 4, wherein: when the hyperbranched modified epoxy powder coating adopts the high-temperature curing condition of 180 ℃ or above, the hyperbranched modified epoxy powder coating does not contain a curing accelerator.
6. A hyperbranched modified epoxy powder coating according to any of claims 1 to 5, characterized in that: the preparation method comprises the following steps:
firstly, mixing the hyperbranched resin, the filler and the flow promoter together in a high-speed mixer for uniform pre-dispersion, wherein the mixer is vertical mixing equipment commonly used for powder coatings, namely, after a pot cover of the mixer is opened, the filler and the flow promoter are added, then the hyperbranched resin is sprayed on the surface of a mixture of the filler and the flow promoter in a high-pressure spraying mode at a mixing speed of not higher than 100rpm, the pot cover is covered after the hyperbranched resin is sprayed, and the mixing speed is not lower than 300rpm and is mixed for 1-2 min; and then opening the pot cover, sequentially adding other raw materials in the formula of the hyperbranched modified epoxy powder coating, uniformly mixing according to a conventional process, and then performing melt extrusion, tabletting, grinding and screening to obtain the hyperbranched modified epoxy powder coating.
7. The hyperbranched modified epoxy powder coating of claim 1, wherein: the hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 25-60% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 0.2-2% of toughening agent PVB, 0.1-0.5% of degassing agent, 0.1-0.2% of flow accelerator and the balance filler.
8. The hyperbranched modified epoxy powder coating of claim 1, wherein: the hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 0.05-0.5% of curing accelerator, 1-3% of flatting agent 5031, 3-30% of flaky zinc powder, 0.1-10% of nano material, 0-30% of filler and 0.1-5% of other functional auxiliary agent.
9. The hyperbranched modified epoxy powder coating of claim 1, wherein: the hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 25-40% of E-12 epoxy resin, 1-10% of hyperbranched polyester resin, 1-5% of curing agent, 5041-3% of flatting agent, 0.2-2% of toughening agent PVB, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter and the balance of pigment and filler.
10. The hyperbranched modified epoxy powder coating of claim 1, wherein: the hyperbranched modified epoxy powder coating comprises the following components in parts by weight: 30-50% of E-12 epoxy resin, 1-10% of hyperbranched epoxy resin, 5-15% of curing agent, 1-3% of flatting agent 5031, 0.1-0.5% of degassing agent, 0.1-0.2% of flow promoter, 3-30% of flaky zinc powder, 0.1-1% of antioxidant, 0.1-0.5% of ultraviolet light absorber, 0.1-1% of light stabilizer, 0.2-2% of toughening agent PVB and the balance of filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264378.9A CN113881315A (en) | 2021-10-28 | 2021-10-28 | Hyperbranched modified epoxy powder coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111264378.9A CN113881315A (en) | 2021-10-28 | 2021-10-28 | Hyperbranched modified epoxy powder coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113881315A true CN113881315A (en) | 2022-01-04 |
Family
ID=79013984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111264378.9A Pending CN113881315A (en) | 2021-10-28 | 2021-10-28 | Hyperbranched modified epoxy powder coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113881315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535941A (en) * | 2023-02-17 | 2023-08-04 | 广东涂墨技术有限公司 | Weather-resistant anti-corrosion powder coating and preparation process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712473A (en) * | 2004-06-24 | 2005-12-28 | 徐州正菱涂装有限公司 | Epoxy zinc-enriched antiseptic powdery paint and production thereof |
| CN110317508A (en) * | 2019-07-30 | 2019-10-11 | 中国科学院过程工程研究所 | A kind of infrared curing powdery paints and preparation method thereof |
| CN110343445A (en) * | 2019-07-17 | 2019-10-18 | 中国科学院过程工程研究所 | A kind of powder paint compositions and its preparation method and application |
| CN112680105A (en) * | 2020-12-28 | 2021-04-20 | 大连油漆有限公司 | Environment-friendly anticorrosive paint, hyperbranched epoxy resin and preparation method thereof |
| CN112831247A (en) * | 2021-01-07 | 2021-05-25 | 浙江中法新材料有限公司 | High-toughness low-temperature curing powder coating and preparation method and application thereof |
-
2021
- 2021-10-28 CN CN202111264378.9A patent/CN113881315A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712473A (en) * | 2004-06-24 | 2005-12-28 | 徐州正菱涂装有限公司 | Epoxy zinc-enriched antiseptic powdery paint and production thereof |
| CN110343445A (en) * | 2019-07-17 | 2019-10-18 | 中国科学院过程工程研究所 | A kind of powder paint compositions and its preparation method and application |
| CN110317508A (en) * | 2019-07-30 | 2019-10-11 | 中国科学院过程工程研究所 | A kind of infrared curing powdery paints and preparation method thereof |
| CN112680105A (en) * | 2020-12-28 | 2021-04-20 | 大连油漆有限公司 | Environment-friendly anticorrosive paint, hyperbranched epoxy resin and preparation method thereof |
| CN112831247A (en) * | 2021-01-07 | 2021-05-25 | 浙江中法新材料有限公司 | High-toughness low-temperature curing powder coating and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535941A (en) * | 2023-02-17 | 2023-08-04 | 广东涂墨技术有限公司 | Weather-resistant anti-corrosion powder coating and preparation process thereof |
| CN116535941B (en) * | 2023-02-17 | 2023-12-01 | 清远道顿新材料有限公司 | Weather-resistant anti-corrosion powder coating and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3445797B1 (en) | Two-component epoxy resin paint | |
| CN110643252A (en) | Water-based epoxy floor coating and preparation method thereof | |
| CN115216207B (en) | Dual-component epoxy heavy-duty flow-coating primer with ultra-long service life and preparation method thereof | |
| CN111057444A (en) | High-solid-content low-viscosity paint, preparation method thereof and paint film coating formed by same | |
| CN111393946B (en) | Solvent-free epoxy anticorrosive paint with high operation period and preparation method thereof | |
| CN113045955A (en) | Low-surface-treatment heavy-duty anticorrosive paint and preparation method and application thereof | |
| CN113881315A (en) | Hyperbranched modified epoxy powder coating and preparation method thereof | |
| CN111040541A (en) | Water-based acrylic amino baking paint and preparation method thereof | |
| CN114181589A (en) | High-salt-spray-resistance water-based tower barrel coating and preparation method thereof | |
| CN112029382B (en) | Long-acting anticorrosion solvent-free universal epoxy coating and preparation method thereof | |
| CN112680070A (en) | Corrosion-resistant high-adhesion epoxy resin powder coating and preparation method thereof | |
| CN112048057A (en) | Epoxy resin, application and high-leveling ultralow-temperature curing type pure powder coating | |
| CN111925718A (en) | Universal primer for nonferrous metal and preparation method thereof | |
| CN111849143B (en) | High-corrosion-resistance environment-friendly water-based epoxy curing agent and preparation method thereof | |
| CN113527982B (en) | Solvent-free epoxy zinc-rich coating | |
| CN111500152B (en) | Epoxy anti-corrosion primer, preparation method thereof and product with primer layer | |
| CN116179048B (en) | Solvent-free weather-resistant epoxy finish paint and preparation method thereof | |
| CN111117438A (en) | Insulating flame-retardant coating | |
| CN114702878B (en) | High-temperature-resistant epoxy resin composition and application thereof | |
| CN116200102B (en) | POSS hybridized epoxy anti-corrosion paint and coating thereof | |
| CN107793539B (en) | Aqueous dispersion of acrylic acid copolymerized epoxy ester and preparation method thereof | |
| CN116355494A (en) | Double-component epoxy anticorrosive paint and preparation method and application thereof | |
| CN111675928A (en) | High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof | |
| CN114561144A (en) | Environment-friendly high-solid-content finish paint and preparation method thereof | |
| CN118325429A (en) | Transparent anti-corrosion novolac epoxy varnish and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220104 |