CN1086246A - Colored thermally indicating material - Google Patents
Colored thermally indicating material Download PDFInfo
- Publication number
- CN1086246A CN1086246A CN 92111166 CN92111166A CN1086246A CN 1086246 A CN1086246 A CN 1086246A CN 92111166 CN92111166 CN 92111166 CN 92111166 A CN92111166 A CN 92111166A CN 1086246 A CN1086246 A CN 1086246A
- Authority
- CN
- China
- Prior art keywords
- thermally indicating
- indicating material
- temperature
- lanthanon
- colored
- 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
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Colored thermally indicating material is by the chromic salt X of lanthanon
2(CrO
4)
3Tungstate Y with alkali earth metal
2(WO
4) or the tungstate Z (WO of alkaline-earth metal
4) mix mutually, just can be made into colored thermo-paint.Thermally indicating material of the present invention can be widely used in industrial sectors such as aviation, machinery, metallurgy, electronics, chemical industry.Can can't measure with the people and can't approaching occasion measure and definite temperature at the common survey instrument.Can big area measure the temperature field, and can keep the distribution of its top temperature field, also can be as the reach capacity warning of temperature of equipment.
Description
The invention belongs to off-color material.
The ultimate principle of thermally indicating material is 1, causes phase transformation by temperature, causes colour-change; 2, cause the change of molecular arrangement by temperature, cause colour-change, 3, cause that by temperature electronics shifts, and causes colour-change in organic compound; The ubiquitous problem of disclosed so far thermally indicating material is a poor heat resistance, generally can not be used in the above environment of 473K.(a day disclosure is speciallyyed permit clear 57-65772, and 57-167380) these material price costlinesses are toxic, and corrodes base material because of containing liquid crystal material (European patent 88-201996) or organic materials in its composition again.Day disclosure speciallys permit clear 64-60685 and flat 1-225689 discloses a kind of resistant to elevated temperatures inorganic materials, but it has used the big thallium salt of toxicity.The thermally indicating material of the method manufacturing that above-mentioned disclosed patent provides has only a discoloring temperature, has limited the range of application of thermally indicating material greatly.
The purpose of this invention is to provide a kind of high temperature resistant, nontoxic, non-corrosiveness, the thermally indicating material of in very wide temperature range, working.
Principal feature of the present invention is that the chromic salt of lanthanon and the wolframic acid salt face of alkali metal mix, and its weight percent is:
X
2(CrO
4)
3Be 91-95%, all the other are Y
2(WO
4)
Thermally indicating material provided by the invention can be widely used in industrial sectors such as aviation, machinery, metallurgy, electronics, chemical industry.Can be in a vacuum, in air, inertia and the oxidizing medium, work easily and reliably in the fuel combustion resultant.Can can't measure with the people and can't approaching occasion measure and definite temperature at common temperature measurement tool.Can big area measure the temperature field, and can keep the distribution of its top temperature field, the also equipment of the can be used as warning of temperature that reaches capacity.
Below discuss in detail the present invention.Thermally indicating material of the present invention, its variable color process is the physicochemical change procedure that is caused by temperature variation, produces phase transformation thus and causes colour-change.The lanthanon chromic salt that the present invention uses is to be formed by the nitrate of lanthanon and the reaction of alkali-metal chromatedsolution.Reaction is carried out at normal temperatures, with the oven dry of reaction precipitation thing, obtains the yellow crystal body.Used tungstate is to be formed by alkali-metal carbonate and Tungsten oxide 99.999 reaction, stoichiometric ratio by chemical equation takes by weighing carbonate and Tungsten oxide 99.999 respectively, mixing and ball milling is about 3mm to granularity, places calcining in the High Temperature Furnaces Heating Apparatus again, and insulation is 5-6 hour in 1100～1200 ° of K constant temperature field.Above process is a routine techniques.
The chromic salt of the lanthanon that obtains above is a base-material, and tungstate is an addition material, mixes just obtaining the thermo-color thermally indicating material mutually by certain weight ratio, the optimum weight per-cent X of base-material and addition material
2(CrO
4)
3Be 91-95%, all the other are Y
2(WO
4).The chromic salt X of lanthanon
2(CrO
4)
3Be base-material, alkali-metal tungstate Y
2(WO
4) and the tungstate Z(WO of alkaline-earth metal
4) when being addition material, X
2(CrO
4)
3Be (69-94) %, Y
2(WO
4) be (4-16) %, all the other are Z(WO
4) at this moment then can improve discoloring temperature and obtain more color.
X-lanthanon in the formula, Y-alkali metal, Z-alkali earth metal.
After having obtained the thermo-color thermally indicating material, can use with diverse ways.In thermally indicating material, add solvent, so that spray to the surface of analyte.Solvent can be water, dehydration, paint, water glass, alcohol, acetone class organic solvent etc.Thermally indicating material is made the lip pencil thing, be coated on the analyte again.In order to improve the sticking power between thermally indicating material and the testee, or, also can add weighting agent and binding agent, as adding cement, Resins, epoxy, stain control agent etc. in order to save thermally indicating material.
Embodiment
1, chromic acid lanthanum: potassium wolframate=95: 5
Temperature (℃) 47 137 222 432 607 707 827 917
(K) 320 410 495 705 880 980 1100 1190
The yellowish-brown yellowish green dark yellow green orchid of color yellow orange is black
2, chromic acid lanthanum: wolframic acid caesium=91:9
Temperature (K) 310 370 490 620 795 1,020 1090
The brown pale green of the yellowish-brown pale green of color yellow orange is yellowish green black
3, chromic acid lanthanum: sodium wolframate=91:9
Temperature (K) 320 410 495 780 920 1,030 1,125 1180
The yellowish-brown yellowish green yellowish green dark orchid of color yellow orange is green black
4, chromic acid europium: wolframic acid rubidium=91:9
Temperature (K) 350 530 700 850 890 1,065 1130
The yellow dark orange yellowish green dark orchid of color yellow orange is green brown
5, chromic acid lanthanum: potassium wolframate: calcium wolframate=69.4:2.8-27.8
Temperature (K) 320 455 520 610 830 1,025 1,130 1250
The yellowish-brown dark yellow yellowish green dark green dark palm fibre of color yellow orange is brown
6, chromic acid lanthanum: potassium wolframate: calcium wolframate=84:4:12
Temperature (K) 330 400 485 670 740 870 900 1100
The color yellow orange is yellowish-brown dun light greenish yellow yellowish green dark green green
Temperature (K) 1,160 1,170 1240
The blue green light green dark palm fibre of darker in color
Claims (7)
1, colored thermally indicating material is characterized by the chromic salt X of lanthanon
2(CrO
4)
3With alkali-metal tungstate Y
2(WO
4) mix mutually.
2,, it is characterized by the chromic salt X of lanthanon by the described colored thermally indicating material of claim 1
2(CrO
4)
3With alkali-metal tungstate Y
2(WO
4) an amount of alkaline-earth metal tungstate Z(WO of middle adding
4).
3, the optimum weight per-cent that it is characterized by the lanthanon chromic salt by the described thermally indicating material of claim 1 is (91-95) %, and all the other are alkali-metal tungstate.
4, it is characterized by optimum weight per-cent X by the described thermally indicating material of claim 1
2(CrO
4)
3Be (69-94) %, Y
2(WO
4) be 4-16, all the other are Z(WO
4)
5,, it is characterized by and in thermally indicating material, add solvent so that be sprayed on the analyte surface by claim 1,2 described thermally indicating materials.
6, it is characterized by adding weighting agent or binding agent in thermally indicating material by claim 1,2 described thermally indicating materials.
7, by claim 1,2,6 described thermally indicating materials it is characterized by thermally indicating material is made block or bar-shaped, with coated easily on analyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111166 CN1086246A (en) | 1992-10-27 | 1992-10-27 | Colored thermally indicating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111166 CN1086246A (en) | 1992-10-27 | 1992-10-27 | Colored thermally indicating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1086246A true CN1086246A (en) | 1994-05-04 |
Family
ID=4945192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111166 Pending CN1086246A (en) | 1992-10-27 | 1992-10-27 | Colored thermally indicating material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1086246A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499800C1 (en) * | 2012-10-09 | 2013-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Reversible thermochemical indicator |
| RU2551373C1 (en) * | 2014-03-11 | 2015-05-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Reversible colour thermal indicator based on double complex compound |
| CN105860672A (en) * | 2016-06-22 | 2016-08-17 | 西安理工大学 | Irreversible thermochromic ink and preparation method thereof |
| CN109483061A (en) * | 2018-10-09 | 2019-03-19 | 武汉锐科光纤激光技术股份有限公司 | Laser 3D method for making color marker and device |
| IT202200006527A1 (en) | 2022-04-01 | 2023-10-01 | Consiglio Nazionale Ricerche | THERMOCHROMIC MATERIAL INCLUDING A LAYERED PEROVSKITE, ITS PREPARATION METHOD AND USES. |
-
1992
- 1992-10-27 CN CN 92111166 patent/CN1086246A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499800C1 (en) * | 2012-10-09 | 2013-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Reversible thermochemical indicator |
| RU2551373C1 (en) * | 2014-03-11 | 2015-05-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Reversible colour thermal indicator based on double complex compound |
| CN105860672A (en) * | 2016-06-22 | 2016-08-17 | 西安理工大学 | Irreversible thermochromic ink and preparation method thereof |
| CN105860672B (en) * | 2016-06-22 | 2019-07-23 | 西安理工大学 | A kind of cause of temperature is irreversibly changed ink and preparation method thereof |
| CN109483061A (en) * | 2018-10-09 | 2019-03-19 | 武汉锐科光纤激光技术股份有限公司 | Laser 3D method for making color marker and device |
| IT202200006527A1 (en) | 2022-04-01 | 2023-10-01 | Consiglio Nazionale Ricerche | THERMOCHROMIC MATERIAL INCLUDING A LAYERED PEROVSKITE, ITS PREPARATION METHOD AND USES. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |