CN105733554B - A kind of reversible thermochromic composite and preparation method thereof - Google Patents
A kind of reversible thermochromic composite and preparation method thereof Download PDFInfo
- Publication number
- CN105733554B CN105733554B CN201610128103.5A CN201610128103A CN105733554B CN 105733554 B CN105733554 B CN 105733554B CN 201610128103 A CN201610128103 A CN 201610128103A CN 105733554 B CN105733554 B CN 105733554B
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- Prior art keywords
- reversible thermochromic
- preparation
- organic amine
- fatty alcohol
- color
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Classifications
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
- C09K9/02—Organic tenebrescent materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
- G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
Abstract
The invention discloses a kind of reversible thermochromic composite and preparation method thereof, the composite includes dyestuff, is colour former；Organic amine, it is developer；Solid fatty alcohol, it is solvent；Wherein, the dyestuff, organic amine, solid fatty alcohol ratio are 1：(20‑50)：(200‑400).The reversible thermochromic material of the present invention prepares fairly simple, and green, reliable and stable, color change is distinct, and material is easy to get, and implements easily.The reversible thermochromic high sensitivity of material of the present invention, reversible color is lasting, and discoloring temperature section is concentrated mainly on 40 65 DEG C；When temperature reaches some particular value or very narrow specific section, its material system is changed from purple to yellow；When temperature, which reduces, to be recovered to particular value, Back Up occurs for its color.
Description
Technical field
The present invention relates to the technical field of thermally indicating material, refers in particular to a kind of reversible thermochromic composite and its preparation side
Method.
Background technology
The demand for development thermometry of industry and science and technology is simple, fast and easy accurate now, new thermally indicating material
Just arise at the historic moment, they can be used in reluctant dangerous area or temporarily maccessiable place.Thermally indicating material is to utilize
Camouflage paint thermochromism measures a kind of specific functionality material of body surface temperature and Temperature Distribution, and also referred to as change colour material
Material or thermo-sensitive material.When material is heated to certain temperature, color changes, when showing a kind of new color, and cooling down again,
Again original color is returned to again, this material is reversible thermally indicating material；If color can not be recovered during cooling, for not
Reversible thermally indicating material.At present, scientists are sent out in the classes of compounds such as inorganic matter, organic matter, polymer and liquid crystal
Now largely there is the material of thermochromic properties, their color change people can be observed by naked eyes, thermochromism
It is mainly used in the color changeable pigment or thermo-color of synthesizing new.Develop thermally indicating material for many years both at home and abroad, and obtained and mutually treated as
Just, many colors in temperature change for being used for temperature indicating are developed and produce the thermochromism substantially changed.At present, it is low on the market
Warm reversible thermochromic material is mainly thermally altered coals capsule, and core composition includes colour former, developer, solid solvent.Example
Such as, it is fatty with developer bisphenol-A and dissolved solids respectively with crystal violet lactone, red, the black TF-BL of temperature-sensitive of temperature-sensitive etc. for colour former
Alcohol forms thermally altered coals；Using bromophenol blue, bromomethyl is green, bromomethyl is purple, cresol red as colour former, respectively with developer alkaline earth
Metal salt and dissolved solids fatty alcohol form thermally altered coals.And it is right, the species for the developer delivered both at home and abroad is basic
Upper is organic acid and the class of alkali salt two, and it is compound to disclose a kind of new thermo-color using organic amine as developer by the present invention
Material.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art and shortcoming, there is provided a kind of reversible thermochromic composite and
Its preparation method, this reversible thermochromic composite prepare simple and fast, and green, reliable and stable, color change is fresh
Bright, material is easy to get, and has widened the range of choice of low-temp reversible thermo-color thermally altered coals.
To achieve the above object, technical scheme provided by the present invention is as follows：
A kind of reversible thermochromic composite, including dyestuff, it is colour former；Organic amine, it is developer；Solid fatty alcohol,
For solvent；Wherein, the dyestuff, organic amine, the mass ratio of solid fatty alcohol are 1：(20-50)：(200-400).
The dyestuff is alizarin red.
The organic amine is melamine or hexamethylenetetramine.
The solid fatty alcohol is one kind in tetradecyl alchohol, hexadecanol, octadecyl alcolol.
The dyestuff, organic amine, solid fatty alcohol are the pure level of analysis.
The preparation method of above-mentioned reversible thermochromic composite is as follows：
Dyestuff, organic amine, solid fatty alcohol are weighed according to the ratio described in claim 1 and is mixed, then heating and melting
Alcoholic solvent is simultaneously cooled down after being sufficiently stirred, you can required reversible thermochromic composite is obtained, its discoloring temperature is 40-65 DEG C,
When temperature reaches particular value or specific section, its material system is changed from purple to yellow, and is recovered extremely when temperature reduces
When below particular value, Back Up occurs for its color.
The present invention compared with prior art, has the following advantages that and beneficial effect：
1st, reversible thermochromic material of the invention is prepared fairly simple, green, reliable and stable, and color change is distinct,
Material is easy to get, and it is easy to implement.
2nd, the reversible thermochromic high sensitivity of material of the present invention, reversible color is lasting, and discoloring temperature section is mainly concentrated
At 40-65 DEG C；When temperature reaches some particular value or very narrow specific section, its material system is from purple to yellow
Transformation；When temperature, which reduces, to be recovered to particular value, Back Up occurs for its color.
Brief description of the drawings
Fig. 1 is the thermo-color compound of gained in embodiment 1 with the chromatic aberration figure of temperature.
Fig. 2 is the thermo-color compound of gained in embodiment 4 with the chromatic aberration figure of temperature.
Embodiment
With reference to multiple specific embodiments, the invention will be further described.
Embodiment 1
Raw material are as follows：
Dyestuff (being specially alizarin red), is colour former；Organic amine (being specially melamine), is developer；Hard fat
Alcohol (being specially hexadecanol), is solvent.Wherein, alizarin red：Melamine：The mass ratio of hexadecanol is 1：50：200.
Preparation method is as follows：
0.1g alizarin red, 5g melamines and 20g hexadecanol mixing are weighed, then heating and melting alcoholic solvent fully stirs
Cooled down after mixing 5min, purple wax is obtained after cooling, when heating this wax to 50 DEG C, solid color is changed into yellow from purple
Color, continue to heat, be changed into yellow liquid, cool down at normal temperatures and pressures immediately, color has yellow liquid to be changed into yellow solid again to become
It is as shown in Figure 1 for violet solid, chromatic aberration.
Embodiment 2
According to alizarin red：Hexamethylenetetramine：The mass ratio of hexadecanol is 1：20：200, weigh 0.1g alizarin red,
The hexadecanol of 2g hexamethylenetetramines and 20g, mixing, then heating and melting alcoholic solvent cools down after being sufficiently stirred 5min, after cooling
Aubergine wax is obtained, when heating this wax to 50 DEG C, solid color is changed into orange-yellow from aubergine, continues to heat,
It is changed into orange-yellow liquid, cools down at normal temperatures and pressures immediately, color has yellow liquid to be changed into orange/yellow solid to be changed into aubergine again
Solid.
Embodiment 3
According to alizarin red：Hexamethylenetetramine：The mass ratio of octadecyl alcolol is 1：50：400, weigh 0.1g alizarin red,
The hexadecanol of 5g melamines and 40g, mixing, then heating and melting alcoholic solvent cools down after being sufficiently stirred 5min, is produced after cooling
To aubergine wax, when heating this wax to 60 DEG C, solid color is changed into yellow from purple, continues to heat, is changed into yellow
Liquid, cool down at normal temperatures and pressures immediately, color has yellow liquid to be changed into yellow solid to be changed into aubergine solid again.
Embodiment 4
According to alizarin red：Melamine：The mass ratio of tetradecyl alchohol is 1：20：200, weigh 0.1g alizarin red, 2g tri-
The hexadecanol of poly cyanamid and 20g, mixing, then heating and melting alcoholic solvent is cooled down after being sufficiently stirred 5min, and purple is obtained after cooling
Red wax, when heating this wax to 39 DEG C, solid color is changed into yellow from purple, continues to heat, is changed into yellow liquid,
Cool down at normal temperatures and pressures immediately, color has yellow liquid to be changed into yellow solid to be changed into violet solid, chromatic aberration such as Fig. 2 institutes again
Show.
Examples of implementation described above are only the preferred embodiments of the invention, and the implementation model of the present invention is not limited with this
Enclose, therefore the change that all shape, principles according to the present invention are made, it all should cover within the scope of the present invention.
Claims (5)
1. a kind of preparation method of reversible thermochromic composite, including dyestuff, it is colour former；Organic amine, it is developer；Solid
Fatty alcohol, it is solvent；Wherein, the dyestuff, organic amine, the mass ratio of solid fatty alcohol are 1：(20-50)：(200-400)；
It is characterized in that：Dyestuff, organic amine, solid fatty alcohol are weighed according to described ratio and is mixed, then heating and melting alcoholic solvent
And cooled down after being sufficiently stirred, you can obtain required reversible thermochromic composite, its discoloring temperature is 40-65 DEG C, works as temperature
When reaching particular value or specific section, its material system is changed from purple to yellow, and is recovered when temperature reduces to particular value
When following, Back Up occurs for its color.
A kind of 2. preparation method of reversible thermochromic composite according to claim 1, it is characterised in that：The dyestuff
For alizarin red.
A kind of 3. preparation method of reversible thermochromic composite according to claim 1, it is characterised in that：It is described organic
Amine is melamine or hexamethylenetetramine.
A kind of 4. preparation method of reversible thermochromic composite according to claim 1, it is characterised in that：The solid
Fatty alcohol is one kind in tetradecyl alchohol, hexadecanol, octadecyl alcolol.
A kind of 5. preparation method of reversible thermochromic composite according to claim 1, it is characterised in that：The dye
Material, organic amine, solid fatty alcohol are the pure level of analysis.
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| CN201610128103.5A CN105733554B (en) | 2016-03-07 | 2016-03-07 | A kind of reversible thermochromic composite and preparation method thereof |
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| CN201610128103.5A CN105733554B (en) | 2016-03-07 | 2016-03-07 | A kind of reversible thermochromic composite and preparation method thereof |
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| CN105733554A CN105733554A (en) | 2016-07-06 |
| CN105733554B true CN105733554B (en) | 2017-12-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106810927A (en) * | 2016-12-28 | 2017-06-09 | 张学健 | It is a kind of to be applied to temperature induced color changing coating of fabric and preparation method thereof |
| CN107041749B (en) * | 2017-01-26 | 2018-11-09 | 杨鹏 | A kind of skin temperature allochroic paint for backbone reduction system |
| CN108103582B (en) * | 2017-12-13 | 2020-06-02 | 江南大学 | Low-temperature reversible thermochromic crystal material, and preparation method and application thereof |
| JP7022597B2 (en) * | 2018-01-22 | 2022-02-18 | 株式会社日立製作所 | Temperature detection ink, temperature detection ink initialization method, temperature indicator, and article management system |
| CN111998967A (en) * | 2020-08-29 | 2020-11-27 | 重庆地格科技有限责任公司 | Temperature-indicating paster for electrical equipment and preparation method thereof |
| CN113234432B (en) * | 2021-05-25 | 2022-06-28 | 台州学院 | Attapulgite-dye reversible thermochromic composite pigment and preparation method thereof |
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| DE102007017791A1 (en) * | 2007-04-16 | 2008-10-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Composite having inverse thermochromic properties, composite containing same and its use |
| CN101724392B (en) * | 2009-11-24 | 2013-04-03 | 张世智 | Multiple reversible color change microcapsule anti-counterfeiting material and preparation method and application thereof |
| CN102191032A (en) * | 2010-03-19 | 2011-09-21 | 陈铨荣 | Reversible thermochromic organic material microcapsule |
| CN104830309B (en) * | 2015-04-29 | 2017-05-10 | 中山大学 | Preparation of reversible thermo-color material, and preparation and applications of thermo-color solution system thereof |
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