CN111548697A - Yellowing-resistant zero-VOC quick-drying bright top-coat paint and preparation method thereof - Google Patents
Yellowing-resistant zero-VOC quick-drying bright top-coat paint and preparation method thereof Download PDFInfo
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- CN111548697A CN111548697A CN202010534624.7A CN202010534624A CN111548697A CN 111548697 A CN111548697 A CN 111548697A CN 202010534624 A CN202010534624 A CN 202010534624A CN 111548697 A CN111548697 A CN 111548697A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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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
- C09D7/47—Levelling agents
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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
- C09D7/65—Additives macromolecular
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a yellowing-resistant zero-VOC quick-drying bright top-coat paint and a preparation method thereof, belongs to the technical field of bright top-coat paint, and comprises a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of defoaming agent and 0.4-0.8% of flatting agent. The light clear finish paint has hundreds of solid content, is not influenced by the environmental temperature and humidity, shortens the packaging time, does not change color after long-term use, has no VOC emission, has excellent scratch resistance, and obtains the coating effects of high hardness, smoothness, fullness, smoothness and brightness like a mirror.
Description
Technical Field
The invention relates to the technical field of a varnish, in particular to a yellowing-resistant zero-VOC quick-drying varnish and a preparation method thereof.
Background
Along with social development, requirements of human beings on aesthetic property and coating effect of bright furniture are higher and higher, PU bright clear finish is widely used for coating woodware as a woodware coating with excellent performance, a coating film of the PU bright clear finish is glittering and translucent, plump and bright as a mirror, brings unique noble enjoyment to consumers and the taste of pursuing healthy life, is deeply favored by markets and customers, but has long drying time, needs a large number of places to place finished products, can be packaged after 48 hours, seriously influences production efficiency and delivery period, has poor yellowing resistance, particularly discharges a large amount of VOC in the coating process, becomes an important source for polluting atmospheric environment, cannot meet the current increasingly harsh environmental protection requirements, is continuously limited for use, and in order to achieve the environmental protection requirements, government furniture encourages enterprises to use water-based coatings, high solid percent coatings, UV coatings and other environmental protection coatings, however, the water-based bright clear finish and the UV bright clear finish both have the defects of poor leveling property and poor fullness, influence on the coating effect, are difficult to obtain high-decorative coating films, cannot meet the requirements of high-end furniture markets, and cannot be applied to the field of high-gloss furniture. In view of the above disadvantages, there is an urgent need to develop a yellowing-resistant bright clear top-coat paint for woodware, which has high fullness, glittering and translucent property, brightness as mirror, low VOC and high coating efficiency, and meets the continuously improved requirements of current consumers on coating effect and environmental protection.
Disclosure of Invention
The invention aims to provide a yellowing-resistant zero-VOC quick-drying bright clear finish and a preparation method thereof, which are not influenced by ambient temperature and humidity, shorten the packaging time, do not change color after long-term use, have no VOC emission, have excellent scratch resistance, and obtain the coating effects of high hardness, smoothness, fullness and smoothness and brightness like a mirror so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the yellowing-resistant zero-VOC quick-drying bright clear finish paint comprises a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of defoaming agent and 0.4-0.8% of flatting agent.
Further, the main paint comprises the following components in percentage by mass: 98% of polymethyl methacrylate resin, 1.2% of defoaming agent and 0.8% of flatting agent.
Further, the main paint comprises the following components in percentage by mass: 98.5 percent of polymethyl methacrylate resin, 0.9 percent of defoaming agent and 0.6 percent of flatting agent.
Further, the main paint comprises the following components in percentage by mass: 99% of polymethyl methacrylate resin, 0.6% of defoaming agent and 0.4% of flatting agent.
Further, the solid content of the yellowing-resistant zero-VOC quick-drying bright clear finish paint is 100%.
Further, the defoamer is a modified siloxane-based defoamer suitable for solventless coating systems.
Further, the leveling agent is formed by mixing a polyether modified organic silicon leveling agent and a fluorine modified polyacrylic acid leveling agent according to the mass ratio of 1: 2.
According to another aspect of the invention, a preparation method of a yellowing-resistant zero-VOC quick-drying bright clear finish paint is provided, which comprises the following steps:
s101: preparing the main paint, weighing the following raw materials in percentage by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of defoaming agent and 0.4-0.8% of flatting agent, the polymethyl methacrylate resin and the auxiliary agent with the formula ratio are put into a dispersion cylinder, dispersed for 15 minutes at 800-;
s102: according to the ratio of main paint to curing agent of 100: 5, uniformly mixing the components in a weight ratio to obtain the yellowing-resistant zero-VOC quick-drying bright clear finish.
Compared with the prior art, the invention has the beneficial effects that:
1. the yellowing-resistant zero-VOC quick-drying bright top-coat paint and the preparation method thereof have the advantages that the construction tolerance is excellent, the paint is not influenced by the environmental temperature and humidity, the paint has ultralow-temperature curing performance, the paint can be constructed at the temperature of-20 ℃, the paint can be rapidly cured to form a film, the surface drying time is less than 30 minutes generally, the actual drying time is less than 2 hours, the packaging time is greatly shortened, the defect that the production period of furniture is prolonged due to slow paint drying caused by low temperature in winter is thoroughly solved, the production efficiency is greatly improved, and the industrial high-quality and high-efficiency construction requirements of furniture enterprises on products are greatly met.
2. The yellowing-resistant zero-VOC quick-drying bright top-coat paint and the preparation method thereof provided by the invention have excellent weather resistance, no aromatic structure and no color-changing group are contained in a coating system, the yellowing resistance is obviously better than that of the existing bright top-coat paint, and the color does not change after long-term use.
3. The yellowing-resistant zero-VOC quick-drying bright top-coat paint and the preparation method thereof provided by the invention have the advantages that no solvent is added, no solvent is volatilized in the construction process, no VOC is discharged, the environment is protected, the production environment of coating workers is improved, the paint has important significance for energy conservation, emission reduction, low carbon and environmental protection, and the national environmental protection discharge requirement is met.
4. The yellowing-resistant zero-VOC quick-drying bright clear finish paint and the preparation method thereof have excellent scratch resistance, obtain the coating effect of high hardness, flatness, fullness, smoothness and brightness like a mirror, have obviously better performance than the existing bright clear finish paint, meet the high decoration requirement of high-grade woodenware products, and are suitable for the aesthetic appearance and environmental protection requirements of consumers.
5. According to the yellowing-resistant zero-VOC quick-drying bright top-coat paint and the preparation method thereof, furniture enterprises do not need to add expensive equipment and change the existing process, the current production situation and the process condition of the current enterprises are met, energy consumption is not increased, a large-area paint drying place is not needed, the production space is saved, and an economic and rapid environment-friendly solution is provided for transformation and upgrading of the furniture enterprises.
Drawings
FIG. 1 is a flow chart of a preparation method of the yellowing-resistant zero-VOC quick-drying bright top-coat paint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the yellowing-resistant zero-VOC quick-drying bright clear finish comprises a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 98% of polymethyl methacrylate resin, 1.2% of defoaming agent and 0.8% of flatting agent; wherein the solid content of the yellowing-resistant zero-VOC quick-drying bright clear finish paint is 100 percent; the polymethyl methacrylate resin is a Degaroute 465 resin which is a micromolecule substance, has extremely low viscosity, can quickly and effectively wet a substrate, has excellent leveling property, contains a large amount of unsaturated double bonds with high activity, generates free radical polymerization under the initiation action of benzoyl peroxide, is completely and quickly cured to form a macromolecular reticular structure, ensures that a film formed after the film is formed has excellent performance, forms a crystal clear, high-fullness and bright film like a mirror, has no aromatic structure and color-changing groups in the resin, has excellent yellowing resistance, is a modified siloxane type defoaming agent suitable for a solvent-free coating system, has very obvious defoaming effect, is easy to permeate into the surface of bubbles for spreading, causes unbalanced surface tension of the bubbles, reduces the stability of the bubbles to break the bubbles, thereby effectively and quickly eliminating the bubbles in a thick film without generating surface fog and shrinkage cavity phenomena, forming a uniform and flat mirror coating; the leveling agent is formed by mixing the polyether modified organic silicon leveling agent and the fluorine modified polyacrylic acid leveling agent according to the mass ratio of 1:2, effectively reduces the surface tension, promotes the coating to quickly and effectively wet a substrate, provides excellent flowing and leveling property, has a certain defoaming effect, reduces the risk of occurrence of dark bubbles and miliaria, gives a bright mirror-like effect to a coating film, and has better smoothness.
In order to better show the flow of the preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, this embodiment provides a preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, which includes the following steps:
s101: preparing the main paint, weighing the following raw materials in percentage by mass: 98% of polymethyl methacrylate resin, 1.2% of defoaming agent and 0.8% of flatting agent, putting the polymethyl methacrylate resin and the auxiliary agent with the formula ratio into a dispersion cylinder, dispersing for 15 minutes at 1000 rpm, and dispersing uniformly to obtain the main paint;
s102: according to the ratio of main paint to curing agent of 100: 5, uniformly mixing the components in a weight ratio to obtain the yellowing-resistant zero-VOC quick-drying bright clear finish.
Example two
Referring to fig. 1, the yellowing-resistant zero-VOC quick-drying bright clear finish comprises a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 98.5 percent of polymethyl methacrylate resin, 0.9 percent of defoaming agent, 0.6 percent of flatting agent, 100 percent of solid content of yellowing-resistant zero VOC quick-drying bright top-coat paint, Degaroute 465 resin as the polymethyl methacrylate resin, and modified siloxane defoaming agent suitable for solvent-free paint system as the defoaming agent; the leveling agent is formed by mixing a polyether modified organic silicon leveling agent and a fluorine modified polyacrylic acid leveling agent according to the mass ratio of 1: 2.
In order to better show the flow of the preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, this embodiment provides a preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, which includes the following steps:
s101: preparing the main paint, weighing the following raw materials in percentage by mass: 98.5 percent of polymethyl methacrylate resin, 0.9 percent of defoaming agent and 0.6 percent of flatting agent, putting the polymethyl methacrylate resin and the auxiliary agent with the formula ratio into a dispersion cylinder, dispersing for 15 minutes at 1000 rpm, and dispersing uniformly to obtain the main paint;
s102: according to the ratio of main paint to curing agent of 100: 5, uniformly mixing the components in a weight ratio to obtain the yellowing-resistant zero-VOC quick-drying bright clear finish.
EXAMPLE III
Referring to fig. 1, the yellowing-resistant zero-VOC quick-drying bright clear finish comprises a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 99% of polymethyl methacrylate resin, 0.6% of defoaming agent, 0.4% of flatting agent, 100% of solid content of yellowing-resistant zero-VOC quick-drying bright top-coat paint, Degaroute 465 resin as polymethyl methacrylate resin, and modified siloxane defoaming agent suitable for solvent-free paint system as defoaming agent; the leveling agent is formed by mixing a polyether modified organic silicon leveling agent and a fluorine modified polyacrylic acid leveling agent according to the mass ratio of 1: 2.
In order to better show the flow of the preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, this embodiment provides a preparation method of the yellowing-resistant zero-VOC quick-drying clear finish, which includes the following steps:
s101: preparing the main paint, weighing the following raw materials in percentage by mass: 99% of polymethyl methacrylate resin, 0.6% of defoaming agent and 0.4% of flatting agent, putting the polymethyl methacrylate resin and the auxiliary agent with the formula ratio into a dispersion cylinder, dispersing for 15 minutes at 1000 rpm, and dispersing uniformly to obtain the main paint;
s102: according to the ratio of main paint to curing agent of 100: 5, uniformly mixing the components in a weight ratio to obtain the yellowing-resistant zero-VOC quick-drying bright clear finish.
The performances of the yellowing-resistant zero-VOC quick-drying bright clear finish prepared in the above examples are detected, and the test results are as follows:
as can be seen from the data in the table above: the yellowing-resistant zero-VOC quick-drying bright clear finish paint prepared by the invention has the characteristics of normal-temperature quick curing, thick film, fleshy feel, glittering and translucent property, brightness as same as a mirror, excellent yellowing resistance, and capability of fully showing the transparent effect of high-grade brightness on the surface of furniture, being capable of being packed within 3 hours, obviously improving the decoration effect and coating efficiency of products, improving the market competitiveness of the products, simultaneously having no VOC emission in the coating process, belonging to green and environment-friendly paint, meeting the production requirements of modern furniture enterprises on decoration, energy conservation, environment protection and high efficiency, and also meeting the environmental protection policy of governments.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions disclosed in the present invention and the equivalent alternatives or modifications thereof within the scope of the present invention.
Claims (8)
1. The yellowing-resistant zero-VOC quick-drying bright clear finish paint is characterized by comprising a main paint and a curing agent, wherein the main paint and the curing agent are 100: 5, wherein the curing agent is benzoyl peroxide, and the main paint comprises the following components in percentage by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of defoaming agent and 0.4-0.8% of flatting agent.
2. The yellowing-resistant zero-VOC fast-drying glossy varnish according to claim 1, wherein the main paint comprises the following components in percentage by mass: 98% of polymethyl methacrylate resin, 1.2% of defoaming agent and 0.8% of flatting agent.
3. The yellowing-resistant zero-VOC fast-drying glossy varnish according to claim 1, wherein the main paint comprises the following components in percentage by mass: 98.5 percent of polymethyl methacrylate resin, 0.9 percent of defoaming agent and 0.6 percent of flatting agent.
4. The yellowing-resistant zero-VOC fast-drying glossy varnish according to claim 1, wherein the main paint comprises the following components in percentage by mass: 99% of polymethyl methacrylate resin, 0.6% of defoaming agent and 0.4% of flatting agent.
5. The yellowing-resistant zero-VOC fast-drying clear top coat according to claim 1, wherein the yellowing-resistant zero-VOC fast-drying clear top coat has a solid content of 100%.
6. The yellowing-resistant, zero-VOC, quick-drying, glossy top coat according to claim 1, wherein said defoamer is a modified siloxane-based defoamer suitable for solventless coating systems.
7. The yellowing-resistant zero-VOC quick-drying clear finish according to claim 1, wherein the leveling agent is prepared by mixing a polyether modified organic silicon leveling agent and a fluorine modified polyacrylic acid leveling agent in a mass ratio of 1: 2.
8. A method for preparing a yellowing-resistant zero VOC quick-drying clear top coat according to any one of claims 1 to 7, comprising the steps of:
s101: preparing the main paint, weighing the following raw materials in percentage by mass: 98-99% of polymethyl methacrylate resin, 0.6-1.2% of defoaming agent and 0.4-0.8% of flatting agent, the polymethyl methacrylate resin and the auxiliary agent with the formula ratio are put into a dispersion cylinder, dispersed for 15 minutes at 800-;
s102: according to the ratio of main paint to curing agent of 100: 5, uniformly mixing the components in a weight ratio to obtain the yellowing-resistant zero-VOC quick-drying bright clear finish.
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| CN202010534624.7A CN111548697A (en) | 2020-06-12 | 2020-06-12 | Yellowing-resistant zero-VOC quick-drying bright top-coat paint and preparation method thereof |
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| CN202010534624.7A CN111548697A (en) | 2020-06-12 | 2020-06-12 | Yellowing-resistant zero-VOC quick-drying bright top-coat paint and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574141A (en) * | 2014-08-20 | 2017-04-19 | 赢创罗姆有限公司 | Reactive resin sealing for low-contaminant cold plastic markings |
| CN106634314A (en) * | 2016-12-30 | 2017-05-10 | 山西长达交通材料科技股份有限公司 | High-brightness marking coating and preparation method thereof |
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2020
- 2020-06-12 CN CN202010534624.7A patent/CN111548697A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574141A (en) * | 2014-08-20 | 2017-04-19 | 赢创罗姆有限公司 | Reactive resin sealing for low-contaminant cold plastic markings |
| CN106634314A (en) * | 2016-12-30 | 2017-05-10 | 山西长达交通材料科技股份有限公司 | High-brightness marking coating and preparation method thereof |
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Application publication date: 20200818 |