CN112795295A - Temperature-sensitive color-changing floor and preparation method thereof - Google Patents
Temperature-sensitive color-changing floor and preparation method thereof Download PDFInfo
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- CN112795295A CN112795295A CN202110055756.6A CN202110055756A CN112795295A CN 112795295 A CN112795295 A CN 112795295A CN 202110055756 A CN202110055756 A CN 202110055756A CN 112795295 A CN112795295 A CN 112795295A
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- temperature
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- sensitive color
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/26—Thermosensitive paints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
-
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of building material processing, and discloses a temperature-sensitive color-changing floor and a preparation method thereof. The floor comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60-80 parts by weight of a core material, 120 parts by weight of a capsule wall material, 750 parts by weight of an aqueous paint, 4000-5000 parts by weight of water, 2-5 parts by weight of a pH regulator and 2-5 parts by weight of a dispersant; the core material comprises 0.5-1.5 parts of a color-dissolving agent, 15-20 parts of a color-developing agent and 44.5-58.5 parts of a solvent. The water paint and the microcapsule mixture are not easy to agglomerate after being combined, and the prepared temperature-sensitive color-changing floor does not have the phenomenon of continuous peeling of a paint film.
Description
Technical Field
The invention belongs to the technical field of building material processing, and particularly relates to a temperature-sensitive color-changing floor and a preparation method thereof.
Background
With the development of society and the improvement of life quality of people, people put higher requirements on the intellectualization and visual sense of decorative materials. The temperature-sensitive color-changing material is a substance with color changed due to temperature change, has active research in the field of functional materials, and is widely applied to the fields of aviation chemical industry, anti-counterfeiting printing, medical textile, decoration and the like. The wood has unique texture, high specific strength, good elastic toughness and excellent processing performance, so that the wood always keeps an important position in the field of wood board preparation. The temperature-sensitive color-changing material is used as a novel functional material and is coated on the floor, when the surface temperature of the floor rises, the surface color changes, the floor absorbs heat energy from the environment and stores the heat energy in the floor, and the total amount of the stored heat energy is equal to the energy required by changing the color of the floor from the color before color changing to the color after color changing; after the temperature is reduced, the natural color of the floor is restored, and the floor releases the energy stored in the floor to the surrounding environment, so that the balance of the ambient temperature is adjusted. Therefore, the thermochromic floor can not only meet the visual enjoyment of people, but also meet the personalized requirements of consumers on decoration materials, and has wide development space.
The water-based paint has the advantages of high environmental protection, low odor, no danger during operation, no strong pungent odor, plump paint film, glittering and translucent property, good flexibility, water resistance, wear resistance, aging resistance, yellowing resistance, quick drying, convenient use and the like, can be used for painting the surfaces of wooden table tops, wooden floor surfaces, composite wooden floors, wooden stairs, wooden furniture and other indoor and outdoor wooden products, and has the market share which is increased year by year. The water paint is mixed with the common temperature-sensitive color-changing powder and then coated on the floor to form the temperature-sensitive color-changing floor. However, when the water paint is mixed with the common temperature-sensitive allochroic powder, the conditions of particle agglomeration, continuous peeling of a paint film and the like are easily generated.
Therefore, aiming at the defect that the temperature-sensitive color-changing floor is prepared by mixing the existing water-based paint and the common temperature-sensitive color-changing powder, the improvement of the combination property of the water-based paint and the temperature-sensitive color-changing material is urgently needed so as to prepare the temperature-sensitive color-changing floor with more perfect property.
Disclosure of Invention
The invention aims to provide a temperature-sensitive color-changing floor and a preparation method thereof, aiming at the defects of the prior art. The water paint and the microcapsule mixture are not easy to agglomerate after being combined, and the prepared temperature-sensitive color-changing floor does not have the phenomenon of continuous peeling of a paint film.
In order to achieve the purpose, the invention provides a temperature-sensitive color-changing floor which comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60-80 parts by weight of a core material, 120 parts by weight of a capsule wall material, 750 parts by weight of an aqueous paint 700-; the core material comprises 0.5-1.5 parts of a color-dissolving agent, 15-20 parts of a color-developing agent and 44.5-58.5 parts of a solvent.
The invention also provides a preparation method of the temperature-sensitive color-changing floor, which comprises the following steps:
s1: heating the solvent to be in a liquid state, adding the color hiding agent and the color developing agent into the liquid solvent, heating and stirring to obtain the core material;
s2: mixing the core material, the capsule wall material and water to obtain a mixture, and carrying out pH adjustment, stirring, heating and drying on the mixture to obtain a microcapsule mixture;
s3: uniformly mixing the microcapsule mixture, the dispersant and the water-based paint to obtain the temperature-sensitive color-changing material;
s4: and uniformly coating the temperature-sensitive color-changing material on the base material, and drying and curing to obtain the temperature-sensitive color-changing floor.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, the microcapsule self-repairing technology is combined with the traditional technology for preparing the temperature-sensitive color-changing paint, so that the water-based paint is not easy to agglomerate after being combined with the microcapsule mixture, and the prepared temperature-sensitive color-changing floor does not have the phenomenon of continuous peeling of a paint film.
(2) The invention isolates the color-changing agent component from the external environment through microencapsulation treatment, can improve the performances of paint film adhesion, thermal stability, impact resistance and the like of the high-temperature sensitive color-changing material, and keeps the reversible color-changing effect.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a temperature-sensitive color-changing floor which comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60-80 parts by weight of a core material, 120 parts by weight of a capsule wall material, 750 parts by weight of water-based paint 700-; the core material comprises 0.5-1.5 parts of a color-dissolving agent, 15-20 parts of a color-developing agent and 44.5-58.5 parts of a solvent.
In the present invention, the color-hiding agent in the core material is an electron donor, and the color-developing agent is an electron acceptor. The oxidation-reduction potentials of the electron donor and the electron acceptor are close to each other, and when the temperature changes, the oxidation-reduction potentials of the electron donor and the electron acceptor are different in relative change degree, so that the direction of the oxidation-reduction reaction changes along with the change of the temperature, and the color of the system changes; the electron donation and acceptance in the reaction are reversibly changed with the temperature change.
According to the present invention, preferably, the leuco agent is at least one of crystal violet lactone, heat-sensitive red, heat-sensitive green, and heat-sensitive yellow.
According to the present invention, preferably, the color developer is at least one of bisphenol a, benzyl paraben and 4-hydroxycoumarin.
According to the present invention, preferably, the solvent is at least one of octanol, n-dodecanol, n-tetradecanol, n-hexadecanol, polyvinyl alcohol, and polystyrene.
According to the invention, the dispersant is preferably an electrically neutral amine-based and/or polycarboxylate-based dispersant.
According to the present invention, preferably, the pH adjusting agent is citric acid crystals.
According to the present invention, preferably, the capsule wall material is at least one of polyethylene, polypropylene, polystyrene, polybutadiene, polyisoprene, polyvinyl alcohol, polyether, polyester, polyamide, polyurea, polyurethane and urea resin.
According to the present invention, preferably, the aqueous paint is a polyurethane aqueous varnish.
According to the present invention, preferably, the substrate is solid wood or veneer.
The invention also provides a preparation method of the temperature-sensitive color-changing floor, which comprises the following steps:
s1: heating the solvent to be in a liquid state, adding the color hiding agent and the color developing agent into the liquid solvent, heating and stirring to obtain the core material;
s2: mixing the core material, the capsule wall material and water to obtain a mixture, and carrying out pH adjustment, stirring, heating and drying on the mixture to obtain a microcapsule mixture;
s3: uniformly mixing the microcapsule mixture, the dispersant and the water-based paint to obtain the temperature-sensitive color-changing material;
s4: and uniformly coating the temperature-sensitive color-changing material on the base material, and drying and curing to obtain the temperature-sensitive color-changing floor.
According to the invention, the heating of the step S1 is preferably water bath heating, the heating temperature is 50-70 ℃, and the heating time is 15-45 min; the stirring speed of the step S1 is 800-900 r/min.
According to the present invention, it is preferable that the stirring rate of step S2 is 150-200 r/min; the heating of the step S2 is water bath heating, the heating temperature is 60-65 ℃, and the heating time is 2.5-3.5 h; the pH value of the mixture after pH adjustment is 3.5-4, the drying temperature is 85-105 ℃, and the drying time is 1.5-2.5 h.
According to the present invention, preferably, in step S4, the temperature of the drying and curing process is 30-45 ℃ for 1-2 h.
The present invention is specifically illustrated by the following examples.
Each of the substances used in the present invention is commercially available.
Example 1
The embodiment provides a temperature-sensitive color-changing floor which comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60 parts by weight of a core material, 100 parts by weight of urea-formaldehyde resin, 750 parts by weight of polyurethane water-based varnish, 4500 parts by weight of water, 4 parts by weight of citric acid crystals and 3 parts by weight of diester quaternary ammonium inner phosphate; the core material comprises 1 part of crystal violet lactone, 14 parts of bisphenol A and 45 parts of polyvinyl alcohol. The base material is a single plate.
Example 2
The embodiment provides a temperature-sensitive color-changing floor which comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60 parts by weight of a core material, 110 parts by weight of polyurethane, 750 parts by weight of polyurethane water-based varnish, 4500 parts by weight of water, 4 parts by weight of citric acid crystals and 4 parts by weight of diester quaternary ammonium inner phosphate; the core material comprises 1 part of thermosensitive red, 14 parts of benzyl p-hydroxybenzoate and 45 parts of n-dodecanol. The base material is a single plate.
Example 3
The embodiment provides a preparation method of a temperature-sensitive color-changing floor, which comprises the following steps:
s1: heating the solvent to be in a liquid state, adding the color hiding agent and the color developing agent into the liquid solvent, heating in a water bath at 60 ℃, and stirring at 850r/min for 25min to obtain the core material;
s2: mixing the core material, the capsule wall material and water to obtain a mixture, adjusting the pH of the mixture to 3, stirring, heating and drying the mixture to obtain a microcapsule mixture; the stirring speed is 150 r/min; the heating is water bath heating, the heating temperature is 65 ℃, and the heating time is 3 h; the drying temperature is 85 ℃, and the drying time is 1.5 h.
S3: uniformly mixing the microcapsule mixture, the dispersant and the water-based paint to obtain the temperature-sensitive color-changing material;
s4: and uniformly coating the temperature-sensitive color-changing material on the base material, and drying and curing to obtain the temperature-sensitive color-changing floor. The temperature of the drying and curing treatment is 45 ℃ and the time is 2 h.
Comparative example 1
The floor comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 750 parts of polyurethane water-based varnish, 4500 parts of water, 4 parts of citric acid crystals, 3 parts of phosphoric acid diester quaternary ammonium inner salt, 1 part of crystal violet lactone, 14 parts of bisphenol A and 45 parts of polyvinyl alcohol in parts by weight. The base material is a single plate.
Comparative example 2
The floor comprises a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60 parts of a core material, 100 parts of urea-formaldehyde resin, 750 parts of polyurethane water-based varnish, 4500 parts of water and 4 parts of citric acid crystals in parts by weight; the core material comprises 1 part of crystal violet lactone, 14 parts of bisphenol A and 45 parts of polyvinyl alcohol. The base material is a single plate.
Comparative example 3
This comparative example provides a floor comprising a veneer and a polyurethane aqueous varnish painted on the surface of the veneer.
Test example
The test examples respectively test the paint film adhesion and discoloration temperature of the temperature sensitive color-changing floor of examples 1-2, the temperature sensitive color-changing floor of comparative examples 1-2, and the floor of comparative example 3, and the test results are shown in table 1. Wherein the paint film adhesion test is carried out according to the method requirements specified in GB/T9286-1998 test for marking and marking the paint film of the colored paint and the varnish; the discoloration temperature measuring step comprises dropping a drop of temperature sensitive discoloration material liquid on a circular qualitative filter paper with a diameter of 25mm, placing on a stainless steel plate heated by a heat source, and measuring the discoloration temperature of the product with an OPTEX point thermometer.
TABLE 1
| Paint film adhesion rating | Discoloration temperature/. degree.C | Colour development temperature/. degree.C | |
| Example 1 | 1 | 16 | 35 |
| Example 2 | 1 | 26 | 30 |
| Comparative example 1 | 2 | 16 | 34 |
| Comparative example 2 | 3 | 16 | 34 |
| Comparative example 3 | 1 | Is free of | Is free of |
From the test results of table 1, it can be seen that, compared to example 1, comparative examples 1 and 2 have poor paint film adhesion and are prone to continuous paint film peeling in the absence of dispersants or capsule wall materials. The paint film adhesion of the color-changing floorings of examples 1 and 2 was as good as that of the aqueous paint alone, relative to comparative example 3. Further, the temperature-sensitive color-changing floor prepared by the invention solves the problems existing after the combination of the existing water-based paint and the microcapsule mixture, and can achieve good temperature-sensitive color-changing effect.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The temperature-sensitive color-changing floor is characterized by comprising a base material and a temperature-sensitive color-changing material coated on the surface of the base material, wherein the temperature-sensitive color-changing material comprises 60-80 parts by weight of a core material, 120 parts by weight of a capsule wall material, 750 parts by weight of water-based paint 700-containing material, 5000 parts by weight of water 4000-containing material, 2-5 parts by weight of a pH regulator and 2-5 parts by weight of a dispersant; the core material comprises 0.5-1.5 parts of a color-dissolving agent, 15-20 parts of a color-developing agent and 44.5-58.5 parts of a solvent.
2. The thermochromic flooring of claim 1,
the leuco agent is at least one of crystal violet lactone, heat-sensitive red, heat-sensitive green and heat-sensitive yellow;
the color developing agent is at least one of bisphenol A, benzyl p-hydroxybenzoate and 4-hydroxycoumarin;
the solvent is at least one of octanol, n-dodecanol, n-tetradecanol, n-hexadecanol, polyvinyl alcohol and polystyrene.
3. The temperature-sensitive color changing floor according to claim 1, wherein the dispersant is a diester quaternary ammonium phosphate inner salt and/or a pyridylpropane sulfonic acid inner salt; the pH regulator is citric acid crystal.
4. The thermochromic flooring of claim 1, wherein the capsule wall material is at least one of polyethylene, polypropylene, polystyrene, polybutadiene, polyisoprene, polyvinyl alcohol, polyether, polyester, polyamide, polyurea, polyurethane, and urea formaldehyde.
5. The temperature-sensitive color changing floor according to claim 1, wherein the water-based paint is a polyurethane water-based varnish.
6. The thermochromic flooring according to claim 1, wherein the substrate is solid wood or veneer.
7. The preparation method of the temperature-sensitive color-changing floor is characterized by comprising the following steps of:
s1: heating the solvent to be in a liquid state, adding the color hiding agent and the color developing agent into the liquid solvent, heating and stirring to obtain the core material;
s2: mixing the core material, the capsule wall material and water to obtain a mixture, and carrying out pH adjustment, stirring, heating and drying on the mixture to obtain a microcapsule mixture;
s3: uniformly mixing the microcapsule mixture, the dispersant and the water-based paint, and drying to obtain the temperature-sensitive color-changing material;
s4: and uniformly coating the temperature-sensitive color-changing material on the base material, and drying and curing to obtain the temperature-sensitive color-changing floor.
8. The method for preparing the temperature-sensitive color-changing floor according to claim 7, wherein the heating of the step S1 is water bath heating, the heating temperature is 50-70 ℃, and the heating time is 15-45 min; the stirring speed of the step S1 is 800-900 r/min.
9. The method for preparing a temperature-sensitive color-changing floor as claimed in claim 7, wherein the stirring speed of step S2 is 150-; the heating of the step S2 is water bath heating, the heating temperature is 60-65 ℃, and the heating time is 2.5-3.5 h; the pH value of the mixture after pH adjustment is 3.5-4, the drying temperature is 85-105 ℃, and the drying time is 1.5-2.5 h.
10. The method for preparing a temperature-sensitive color-changing floor according to claim 7, wherein the temperature of the drying and curing process is 30 to 45 ℃ for 1 to 2 hours in step S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110055756.6A CN112795295A (en) | 2021-01-15 | 2021-01-15 | Temperature-sensitive color-changing floor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110055756.6A CN112795295A (en) | 2021-01-15 | 2021-01-15 | Temperature-sensitive color-changing floor and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115741929A (en) * | 2022-11-11 | 2023-03-07 | 广东大自然家居科技研究有限公司 | Hierarchical intelligent induction wood floor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028118A (en) * | 1972-05-30 | 1977-06-07 | Pilot Ink Co., Ltd. | Thermochromic materials |
| CN101116988A (en) * | 2007-09-03 | 2008-02-06 | 孙英瀚 | Method for preparation of |
| CN103132682A (en) * | 2011-11-30 | 2013-06-05 | 中国林业科学研究院木材工业研究所 | Temperature-sensitive reversible color-changing floor and manufacturing method thereof |
| CN104910714A (en) * | 2015-06-23 | 2015-09-16 | 南昌添丽特实业有限责任公司 | Temperature-changeable microcapsule coating and preparation method thereof |
-
2021
- 2021-01-15 CN CN202110055756.6A patent/CN112795295A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028118A (en) * | 1972-05-30 | 1977-06-07 | Pilot Ink Co., Ltd. | Thermochromic materials |
| CN101116988A (en) * | 2007-09-03 | 2008-02-06 | 孙英瀚 | Method for preparation of |
| CN103132682A (en) * | 2011-11-30 | 2013-06-05 | 中国林业科学研究院木材工业研究所 | Temperature-sensitive reversible color-changing floor and manufacturing method thereof |
| CN104910714A (en) * | 2015-06-23 | 2015-09-16 | 南昌添丽特实业有限责任公司 | Temperature-changeable microcapsule coating and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115741929A (en) * | 2022-11-11 | 2023-03-07 | 广东大自然家居科技研究有限公司 | Hierarchical intelligent induction wood floor and preparation method thereof |
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