CN115386267A - Weather-resistant visual transparent protective coating and preparation method thereof - Google Patents
Weather-resistant visual transparent protective coating and preparation method thereof Download PDFInfo
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- CN115386267A CN115386267A CN202211232271.0A CN202211232271A CN115386267A CN 115386267 A CN115386267 A CN 115386267A CN 202211232271 A CN202211232271 A CN 202211232271A CN 115386267 A CN115386267 A CN 115386267A
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- 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
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a weather-resistant visual transparent protective coating and a preparation method thereof. The transparent protective coating is prepared from the following raw materials in parts by weight: 50-80 parts of polystyrene-acrylate copolymer emulsion, 0.5-2 parts of auxiliary agent, 0.1-0.5 part of defoaming agent, 0.3-1.5 parts of thickening agent, 0.1-0.5 part of flatting agent, 1-5 parts of anti-settling agent, 0.1-0.5 part of preservative and 25-50 parts of curing agent group. The weather-proof visual transparent protective coating prepared by the invention adds luminescent substances, can check the integrity of the coating by specific light rays, and plays a role in indicating construction and maintenance. The coating obtained by the invention has good weather resistance, simple production process and good construction performance, meets the environmental protection index and has extremely high market practical value.
Description
Technical Field
A weather-resistant visual transparent protective coating and a preparation method thereof.
Background
Since the 21 st century, with the advancement of technology, the market demand for coating performance has been increasing. The most common requirements are to increase complex functions and to improve durability. For example, in the outdoor coating, in addition to the functional requirements of general decoration and the like, a paint film is easily damaged by ultraviolet light to cause functional loss and even direct pulverization and loss of functions after long-term outdoor exposure, so that the resin for the outdoor coating needs to have better weather resistance. Better gloss retention and less color variation are required; the resin is required to be resistant to ultraviolet light aging for a long time so as to avoid recoating caused by poor protective capability of a paint film.
Resins for weather-resistant powder coatings are widely available, but the resins generally have poor durability. The fluororesin has a fluorine-carbon bond structure with shorter bond length and much higher bond energy than that of carbon-carbon and carbon-oxygen bond energy, is widely applied to the fields of high-end building aluminum type, electric and electronic, aerospace and aviation and the like, has mature production and construction processes, and is a world-recognized super-weather-resistant coating variety. The coating process (such as melting temperature, baking temperature and the like) of the thermosetting fluorocarbon powder coating is similar to that of the common powder coating, but the performances (such as weather resistance, corrosion resistance and the like) of the thermosetting fluorocarbon powder coating are far higher than those of polyester and epoxy powder coatings. However, they have low impact resistance, uneven appearance of the coating film and poor adhesion, and require pretreatment of the substrate with high requirements. The weather resistance of the coating can be improved by improving the polyester powder coating. The weathering performance of powder coating coatings is directly related to the spectral sensitivity of the components. Because the resin types have different functional groups and bond energies, the photosensitivity and the stability are different; the influence of the added components on the absorption of UV light and the degree of oxidation of the coating results in a weak or strong weatherability of the powder coating. At present, the general weather-resistant powder coating systems such as thermoplastic polyethylene resin, thermosetting polyester resin and the like are mainly adopted in the market to ensure weather resistance, and the powder coating with stronger weather resistance still needs to be developed for some harsh environments (such as acid, alkali and the like).
Disclosure of Invention
The invention aims to provide a weather-resistant transparent visual protective coating with long-term weather resistance, yellowing resistance, stain resistance, ultraviolet resistance and other excellent performances and a preparation method thereof.
The invention is realized by the following measures:
a weather-resistant visual transparent protective coating is prepared from the following raw materials in parts by weight: 50-80 parts of polystyrene-acrylate copolymer emulsion, 0.1-0.3 part of auxiliary agent, 0.1-0.5 part of defoaming agent, 0.3-1.5 parts of thickening agent, 0.1-0.5 part of flatting agent, 1-5 parts of anti-settling agent, 0.1-0.5 part of preservative and 25-30 parts of curing agent group.
The polystyrene-acrylate copolymer emulsion comprises the following components: 5 to 15 portions of methyl acrylate, 15 to 30 portions of butyl acrylate, 0.3 to 1.0 portion of acrylic acid, 15 to 30 portions of styrene, 14 to 30 portions of toluene, 10 to 20 portions of butyl acetate and 5 to 15 portions of ethyl acetate.
The auxiliary agent comprises the following raw materials in parts by weight: 20-30 parts of a visualization auxiliary agent, namely, diphenylethylene diphenyl disulfonate disodium, 30-40 parts of an antioxidant [ tris (2,4-di-tert-butylphenyl) phosphite ], and 40-50 parts of an ultraviolet absorber, namely, benzotriazole.
The defoaming agent is selected from: one or two of mineral oil type, organic silicon type or polyether type defoaming agents.
The leveling agent is selected from: one or more of polyacrylate flatting agent, polyester flatting agent, fluorine modified polyacrylate flatting agent and organic silicon flatting agent.
The thickening agent is selected from: a cellulose thickener.
The anti-settling agent is selected from: an alkyl aryl polyether.
The preservative is isothiazolinone.
The curing agent is one or more of hexamethylene diisocyanate, adipic dihydrazide and the like.
A preparation method of a weather-resistant visual transparent protective coating comprises the following steps:
(1) Adding the emulsion into a stirrer, then adding a defoaming agent and a leveling agent, and continuously stirring for 10-30 minutes;
(2) Sequentially adding the auxiliary agents, and fully stirring for 10-30 minutes;
(3) And adding the anti-settling agent, the preservative and the curing agent in sequence, fully stirring, slowly adding the thickening agent, and stirring for 30-50 minutes until the viscosity is stable to obtain the weather-resistant visual transparent protective coating.
The invention has the following advantages:
(1) The weather-resistant visual transparent protective coating provided by the invention has the advantages of high cost performance, strong adhesion, good water resistance and alkali resistance, fine paint film, fine and smooth coverage of fine cracks and the like.
(2) The preparation method of the weather-resistant visual transparent protective coating provided by the invention has the advantages of clear layers, clear steps, simplicity, easiness, convenience in operation, easiness in mastering and the like.
(3) The weather-resistant visual transparent protective coating provided by the invention can effectively enhance the durability of a paint film and prevent ultraviolet damage, and has good heat resistance and good weather resistance.
(4) The weather-resistant visual transparent protective coating provided by the invention is added with the visual auxiliary agent, and can be used for checking the integrity of a paint surface under specific light, so that workers can perform construction and later maintenance and inspection.
The specific implementation mode is as follows:
the following is further illustrated with reference to the examples:
example 1: the polystyrene-acrylate copolymer emulsion is prepared from the following raw materials in parts by weight: 20 parts of toluene, 10 parts of butyl acetate and 5 parts of ethyl acetate, 15 parts of methyl acrylate, 20 parts of butyl acrylate, 1.0 part of acrylic acid and 29 parts of styrene. The auxiliary agent comprises 30 parts of disodium styrene diphenyl disulfonate, 30 parts of tris (2,4-di-tert-butylphenyl) phosphite and 40 parts of benzotriazole by weight. The transparent coating comprises the following raw materials in parts by weight: 60 parts of polystyrene-acrylate copolymer emulsion, 0.3 part of auxiliary agent, 0.2 part of LDS-800 (defoaming agent), 0.2 part of HBR250 (thickening agent), 0.1 part of BYK333 (flatting agent), 1 part of aqueous anti-settling agent 410 (anti-settling agent), 0.2 part of Kathon preservative (preservative) and 38 parts of hexamethylene diisocyanate.
The preparation method of the weather-resistant visual transparent protective coating comprises the following steps:
(1) Adding the emulsion into a stirrer, then adding a defoaming agent and a leveling agent, and continuously stirring for 30 minutes;
(2) Sequentially adding the auxiliary agents, and fully stirring for 30 minutes;
(3) And (3) adding the anti-settling agent, the preservative and the curing agent in sequence, fully stirring, slowly adding the thickening agent, and stirring for 50 minutes until the viscosity is stable to obtain the weather-resistant visual transparent protective coating.
Example 2: the polystyrene-acrylate copolymer emulsion is prepared from the following raw materials in parts by weight: 30 parts of toluene, 10 parts of butyl acetate, 5 parts of ethyl acetate, 5 parts of methyl acrylate, 20 parts of butyl acrylate, 1.0 part of acrylic acid and 29 parts of styrene. The auxiliary agent comprises 20 parts of disodium styrene diphenyl disulfonate, 40 parts of tris (2,4-di-tert-butylphenyl) phosphite and 40 parts of benzotriazole by weight. The transparent coating is prepared from the following raw materials in parts by weight: 70 parts of polystyrene-acrylate copolymer emulsion, 0.3 part of auxiliary agent, 0.2 part of LDS-800 (defoaming agent), 0.2 part of HBR250 (thickening agent), 0.1 part of BYK333 (flatting agent), 1 part of aqueous anti-settling agent 410 (anti-settling agent), 0.2 part of Kathon preservative (preservative) and 28 parts of hexamethylene diisocyanate.
The preparation method of the weather-resistant visual transparent protective coating comprises the following steps:
(1) Adding the emulsion into a stirrer, then adding a defoaming agent and a leveling agent, and continuously stirring for 30 minutes;
(2) Sequentially adding the auxiliary agents, and fully stirring for 30 minutes;
(3) And (3) adding the anti-settling agent, the preservative and the curing agent in sequence, fully stirring, slowly adding the thickening agent, and stirring for 50 minutes until the viscosity is stable to obtain the weather-resistant visual transparent protective coating.
Example 3: the polystyrene-acrylate copolymer emulsion is prepared from the following raw materials in parts by weight: 25 parts of toluene, 15 parts of butyl acetate, 5 parts of ethyl acetate, 10 parts of methyl acrylate, 25 parts of butyl acrylate, 1.0 part of acrylic acid and 29 parts of styrene. The auxiliary agent comprises 30 parts of disodium styrene diphenyl disulfonate, 30 parts of tris (2,4-di-tert-butylphenyl) phosphite and 40 parts of benzotriazole by weight. The transparent coating is prepared from the following raw materials in parts by weight: 60 parts of polystyrene-acrylate copolymer emulsion, 0.3 part of auxiliary agent, 0.2 part of LDS-800 (defoaming agent), 0.2 part of HBR250 (thickening agent), 0.1 part of BYK333 (flatting agent), 1 part of aqueous anti-settling agent 410 (anti-settling agent), 0.2 part of Kathon preservative (preservative) and 38 parts of hexamethylene diisocyanate.
The preparation method of the weather-resistant visual transparent protective coating comprises the following steps:
(1) Adding the emulsion into a stirrer, then adding a defoaming agent and a leveling agent, and continuously stirring for 30 minutes;
(2) Sequentially adding the auxiliary agents, and fully stirring for 30 minutes;
(3) And (3) adding the anti-settling agent, the preservative and the curing agent in sequence, fully stirring, slowly adding the thickening agent, and stirring for 50 minutes until the viscosity is stable to obtain the weather-resistant visual transparent protective coating.
The above examples describe only the most representative embodiments of the present invention in detail, but the present invention is not limited to the details of the above embodiments. On the basis of the technical idea of the invention, a person skilled in the art can combine the various embodiments of the invention at will. Therefore, several modifications based on the technical idea of the present invention should be covered within the protective scope of the present invention. In order to avoid unnecessary repetition, the technical features described in the embodiments above may be combined in any suitable manner, and the invention will not be further described in any possible combination.
Claims (10)
1. The weather-resistant visual transparent protective coating is characterized by being prepared from the following raw materials in parts by weight: 50-80 parts of polystyrene-acrylate copolymer emulsion, 0.5-2 parts of auxiliary agent, 0.1-0.5 part of defoaming agent, 0.3-1.5 parts of thickening agent, 0.1-0.5 part of flatting agent, 1-5 parts of anti-settling agent, 0.1-0.5 part of preservative and 25-50 parts of curing agent group.
2. The weather-resistant visual transparent protective coating as claimed in claim 1, wherein the polyethylene-acrylate copolymer emulsion is prepared from the following raw materials in parts by weight: 5 to 15 portions of methyl acrylate, 15 to 30 portions of butyl acrylate, 0.3 to 1.0 portion of acrylic acid, 15 to 30 portions of styrene, 14 to 30 portions of toluene, 10 to 20 portions of butyl acetate and 5 to 15 portions of ethyl acetate.
3. The weather-resistant visual transparent protective coating according to claim 1, wherein the auxiliary agent is composed of the following raw materials in parts by weight: 20-30 parts of visual auxiliary agent, namely, disodium diphenylethylene disulfonate, 30-40 parts of antioxidant [ tris (2,4-di-tert-butylphenyl) phosphite ] and 40-50 parts of ultraviolet absorbent, namely benzotriazole.
4. The weatherable, visually transparent protective coating according to claim 1, wherein the defoamer is selected from: one or two of mineral oil type, organic silicon type or polyether type defoaming agents.
5. The weatherable, visual, and transparent protective coating according to claim 1, wherein said leveling agent is selected from the group consisting of: one or more of polyacrylate flatting agent, polyester flatting agent, fluorine modified polyacrylate flatting agent and organic silicon flatting agent.
6. The weatherable, visual, transparent protective coating according to claim 1 wherein said thickener is selected from the group consisting of: a cellulose thickener.
7. The weatherable, visual, transparent protective coating according to claim 1, wherein said anti-settling agent is selected from the group consisting of: an alkyl aryl polyether.
8. The weatherable, visual, transparent protective coating according to claim 1 wherein the preservative is an isothiazolinone.
9. The weather-resistant visual transparent protective coating according to claim 1, wherein the curing agent is one or more of hexamethylene diisocyanate, adipic acid dihydrazide and the like.
10. A preparation method of a weather-resistant visual transparent protective coating comprises the following steps:
(1) Adding the emulsion into a stirrer, then adding a defoaming agent and a leveling agent, and continuously stirring for 10-30 minutes;
(2) Sequentially adding the auxiliary agents, and fully stirring for 10-30 minutes;
(3) And (3) adding the anti-settling agent, the preservative and the curing agent in sequence, fully stirring, slowly adding the thickening agent, and stirring for 30-50 minutes until the viscosity is stable to obtain the weather-resistant visual transparent protective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211232271.0A CN115386267A (en) | 2022-10-09 | 2022-10-09 | Weather-resistant visual transparent protective coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211232271.0A CN115386267A (en) | 2022-10-09 | 2022-10-09 | Weather-resistant visual transparent protective coating and preparation method thereof |
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Citations (7)
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|---|---|---|---|---|
| JPH06107977A (en) * | 1992-09-29 | 1994-04-19 | Sekisui Jushi Co Ltd | Ultraviolet screening coating material |
| JP2004307685A (en) * | 2003-04-08 | 2004-11-04 | Nagase Chemtex Corp | Undercoat composition |
| CN107858055A (en) * | 2017-11-16 | 2018-03-30 | 君子兰化工（上海）有限公司 | The high weather resistant water-thinned mould proof varnish of woodenware |
| CN111440347A (en) * | 2020-03-25 | 2020-07-24 | 李皥东 | Improved PC board and preparation method thereof |
| CN111534186A (en) * | 2020-04-13 | 2020-08-14 | 浙江大学 | Fluorescent visual fluorine-silicon electronic protective coating and preparation method thereof |
| CN112961554A (en) * | 2021-02-05 | 2021-06-15 | 青岛中氟氟碳材料有限公司 | Super-weather-resistant water-based paint for outdoor wood, preparation method of super-weather-resistant water-based paint and wood product |
| CN114014974A (en) * | 2021-11-23 | 2022-02-08 | 青岛豪纳化工科技有限公司 | Transparent waterproof adhesive emulsion for external wall and preparation method thereof |
-
2022
- 2022-10-09 CN CN202211232271.0A patent/CN115386267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06107977A (en) * | 1992-09-29 | 1994-04-19 | Sekisui Jushi Co Ltd | Ultraviolet screening coating material |
| JP2004307685A (en) * | 2003-04-08 | 2004-11-04 | Nagase Chemtex Corp | Undercoat composition |
| CN107858055A (en) * | 2017-11-16 | 2018-03-30 | 君子兰化工（上海）有限公司 | The high weather resistant water-thinned mould proof varnish of woodenware |
| CN111440347A (en) * | 2020-03-25 | 2020-07-24 | 李皥东 | Improved PC board and preparation method thereof |
| CN111534186A (en) * | 2020-04-13 | 2020-08-14 | 浙江大学 | Fluorescent visual fluorine-silicon electronic protective coating and preparation method thereof |
| CN112961554A (en) * | 2021-02-05 | 2021-06-15 | 青岛中氟氟碳材料有限公司 | Super-weather-resistant water-based paint for outdoor wood, preparation method of super-weather-resistant water-based paint and wood product |
| CN114014974A (en) * | 2021-11-23 | 2022-02-08 | 青岛豪纳化工科技有限公司 | Transparent waterproof adhesive emulsion for external wall and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 罗春华等: "《材料制备与性能测试实验》", vol. 1, 机械工业出版社, pages: 3 - 5 * |
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