CN106957456A - The temperature sensing material and its synthetic method of a kind of vanadium dioxide synthesis of utilization witch culture - Google Patents
The temperature sensing material and its synthetic method of a kind of vanadium dioxide synthesis of utilization witch culture Download PDFInfo
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- CN106957456A CN106957456A CN201710234095.7A CN201710234095A CN106957456A CN 106957456 A CN106957456 A CN 106957456A CN 201710234095 A CN201710234095 A CN 201710234095A CN 106957456 A CN106957456 A CN 106957456A
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- vanadium dioxide
- witch culture
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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Abstract
The temperature sensing material and its synthetic method synthesized the present invention relates to a kind of vanadium dioxide of utilization witch culture, the method for the present invention comprises the following steps：Step S1, the vanadium dioxide preparation base soln using witch culture；Step S2, by base soln with mass ratio 1：8‑1：15 ratio is mixed to get comprehensive solution with hydroxymethyl cellulose；Step S3, by comprehensive solution and water with mass ratio 1:10‑1:20 ratio is soluble in water, obtains the comprehensive solution aqueous solution；Step S4, will the comprehensive solution aqueous solution handle after obtain temperature sensing material.The characteristics of present invention is directed to hydroxymethyl cellulose, utilize the change of the vanadium dioxide crystal formation at different temperatures of witch culture, hydroxymethyl cellulose LCST change synchronously is realized, so as to cause the difference of light transmittance, the purpose of hydroxymethyl cellulose LCST to 32 35 degrees Celsius of reduction is reached.
Description
Technical field
The present invention relates to temperature sensing material field, and in particular to a kind of temperature sensing material of the vanadium dioxide synthesis of utilization witch culture
And its synthetic method.
Background technology
Temperature sensing material refers to that with the change of temperature the phenomenon of different light transmittances can be produced, and main cause is in different temperatures
When material structure change caused by, produce structure change key point temperature turn into LCST, hydroxymethyl cellulose
(HPC) it is a kind of common temperature sensing material, its LCST is in 45 degrees centigrades.Existing temperature sensing material is mostly according to temperature sensitive material
The characteristic of itself is expected come what is realized, and its LCST is related typically to the architectural characteristic of itself.Such as HPC, its LCST is at 35 degrees Celsius
Left and right.Its LCST is reduced at present mainly uses salt treatment method.Salt treatment method is to add NaCl into HPC to reduce it
LCST, although this method can reduce HPC LCST, it has the disadvantage when temperature is increased to 45 degrees Celsius, high molecular polymerization
Thing can polymerize in salting liquid, precipitation be formed, so as to lose the property of Polymer Solution.
The content of the invention
There is provided a kind of utilization witch culture for the characteristics of technical problems to be solved by the invention are for hydroxymethyl cellulose
The temperature sensing material and its synthetic method of vanadium dioxide synthesis, the present invention using witch culture vanadium dioxide crystal formation at different temperatures
Change, synchronously realize hydroxymethyl cellulose LCST change, so as to cause the difference of light transmittance, reach reduction hydroxylmethyl cellulose
Plain LCST to 32-35 degrees Celsius of purpose.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
The method that a kind of vanadium dioxide of utilization witch culture synthesizes temperature sensing material, comprises the following steps：
Step S1, the vanadium dioxide preparation base soln using witch culture；
Step S2, by base soln and hydroxymethyl cellulose with mass ratio 1：8-1：15 ratio is mixed to get comprehensive molten
Liquid；
Step S3, by comprehensive solution and water with mass ratio 1:10-1:20 ratio is soluble in water, obtains comprehensive solution water-soluble
Liquid；
Step S4, will the comprehensive solution aqueous solution handle after obtain temperature sensing material.
Further, the step S1 specifically includes following steps：
Step S1.1, by the vanadium dioxide of organic solvent and witch culture with mass ratio 11：1-8:1 ratio uniform mixing is simultaneously
Wiring solution-forming obtains preliminary mixed solution；
Step S1.2,30-60 minutes ultrasonically treated is carried out to preliminary mixed solution；
Step S1.3, by quality for preliminary mixed solution quality 1% BYK-180 dispersants add it is ultrasonically treated after
Preliminary mixed solution, obtains secondary mixed solution；
Step S1.4,30-60 minutes ultrasonically treated is carried out to secondary mixed solution, obtain base soln.
Further, in the step S1.1, the mass ratio of tungsten and vanadium dioxide is 1 in the vanadium dioxide of witch culture：25.
Further, in the step S1.1, the mass ratio of the vanadium dioxide of organic solvent and witch culture is 9:1.
Further, the step S4 is specifically included,
Step S4.1, the comprehensive solution aqueous solution freezes in -15 DEG C~-20 DEG C of refrigerator to 12-24 hour obtain glue
Body material；
Step S4.2, colloidal materials are placed in 15 DEG C -25 DEG C of room temperature to 2-3 hour obtain hydroxymethyl cellulose temperature
Quick material.
Further, in the step S4.1, cooling time is 16 hours.
Further, the mass ratio of comprehensive solution and water is 1 in the step S3:12.
Further, the organic solvent is dipropylene glycol methyl ether solvent.
The temperature sensing material of the vanadium dioxide synthesis of a kind of utilization witch culture, by the vanadium dioxide and hydroxylmethyl cellulose of witch culture
Element is mixed, and the vanadium dioxide of the witch culture and the mass ratio of hydroxymethyl cellulose are 1：8-1：15.
Further, the mass ratio of the vanadium dioxide of the witch culture and hydroxymethyl cellulose is 1:10.
Beneficial effects of the present invention are：The present invention uses two kinds of temperature sensitive materials of vanadium dioxide and hydroxymethyl cellulose of witch culture
Expect the effect of the LCST comprehensively to realize reduction macromolecule temperature sensing material, vanadium dioxide is a kind of temperature sensitive inorganic material in itself, its
Crystal formation transformation temperature is 68 degrees Celsius, and the vanadium dioxide nano particle of witch culture, which can be realized, change titanium dioxide at 25 degrees Celsius
The crystal formation of vanadium, so as to reduce the temperature sensitive LCST of overall hydroxymethyl cellulose；The present invention reduces temperature sensitive high molecular polymerization by inorganic salts
Thing LCST, which is changed into nano-particle, reduces temperature sensitive high molecular polymer LCST, realizes uniform, and high-efficiency thermoindicator material property changes
Become.
Embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
The method that a kind of vanadium dioxide of utilization witch culture synthesizes temperature sensing material, comprises the following steps：
Step S1, the vanadium dioxide preparation base soln using witch culture；
Step S2, by base soln and hydroxymethyl cellulose with mass ratio 1：8-1：15 ratio is mixed to get comprehensive molten
Liquid；
Step S3, by comprehensive solution and water with mass ratio 1:10-1:20 ratio is soluble in water, obtains comprehensive solution water-soluble
Liquid；
Step S4, will the comprehensive solution aqueous solution handle after obtain temperature sensing material.
Further, the step S1 specifically includes following steps：
Step S1.1, by the vanadium dioxide of organic solvent and witch culture with mass ratio 11：1-8:1 ratio uniform mixing is simultaneously
Wiring solution-forming obtains preliminary mixed solution；
Step S1.2,30-60 minutes ultrasonically treated is carried out to preliminary mixed solution；
Step S1.3, by quality for preliminary mixed solution quality 1% BYK-180 dispersants add it is ultrasonically treated after
Preliminary mixed solution, obtains secondary mixed solution；
Step S1.4,30-60 minutes ultrasonically treated is carried out to secondary mixed solution, obtain base soln.
In the step S1.1, the mass ratio of tungsten and vanadium dioxide is 1 in the vanadium dioxide of witch culture：25.
In the step S1.1, the mass ratio of the vanadium dioxide of organic solvent and witch culture is 9:1.
The step S4 is specifically included,
Step S4.1, the comprehensive solution aqueous solution freezes in -15 DEG C~-20 DEG C of refrigerator to 12-24 hour obtain glue
Body material；
Step S4.2, colloidal materials are placed in 15 DEG C -25 DEG C of room temperature to 2-3 hour obtain hydroxymethyl cellulose temperature
Quick material.
In the step S4.1, cooling time is 16 hours.
The mass ratio of comprehensive solution and water is 1 in the step S3:12.
The organic solvent is dipropylene glycol methyl ether solvent.
The temperature sensing material of the vanadium dioxide synthesis of a kind of utilization witch culture, by the vanadium dioxide and hydroxylmethyl cellulose of witch culture
Element is mixed, and the vanadium dioxide of the witch culture and the mass ratio of hydroxymethyl cellulose are 1：8-1：15.
The vanadium dioxide of the witch culture and the mass ratio of hydroxymethyl cellulose are 1:10.
During confirmatory experiment, respectively adjust witch culture vanadium dioxide base soln and hydroxymethyl cellulose mass ratio and
The mass ratio of comprehensive solution and water, prepares temperature sensing material, and the LCST of the temperature sensing material of preparation is detected, by repeatedly anti-
Multiple experiment, obtained average results are as shown in the table：
It was therefore concluded that being, the mass ratio of comprehensive solution and water is 1:When 12, base soln and hydroxymethyl cellulose
Mass ratio is 1:When 10, the LCST values of obtained temperature sensing material are minimum, and effect is best.
The present invention comprehensively realizes that reduction is high using two kinds of temperature sensing materials of vanadium dioxide and hydroxymethyl cellulose of witch culture
The LCST of molecule temperature sensing material effect, because the vanadium dioxide of witch culture is Nanoparticulate, may be uniformly dispersed in by BYK
In the dipropylene glycol methyl ether that dispersant promotes, its feature is as follows：
A. it is uniformly dispersed：Nano-particle is uniform due to particle, and very well, being in theory can be with substantially uniformity point for dispersion effect
Dissipate in a solvent, it is to avoid high molecular coacervation during salt treatment.
B. homogeneous heating：, generally can be equal by nano-particle no matter each position shape of temperature sensing material during heating
Even infiltration produces heat.Therefore uniformity is substantially improved.Scorched outside and underdone inside, outer dry interior wet phenomenon can be avoided.
C. heat transfer is accelerated in temperature elevation process：Because the thermal conduction rate of nano-particle is more than the heat transfer of pure solution
Speed, thus the temperature-rise period time improved.
D.LCST is reduced：The vanadium dioxide crystal formation alternating temperature temperature of witch culture, therefore can be by entirety in 25 degrees centigrades
The LCST of hydroxylmethyl cellulose drops to 35 degrees centigrades.
E. alternating temperature efficiency is improved：The reduction of crucial alternating temperature temperature spot, heat transfer is speeded, and the alternating temperature efficiency of temperature change material can
To be improved, i.e., the time that temperature change needs is shortened, and for same change warm spot, its alternating temperature efficiency can be improved
30% or so.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. the method that a kind of vanadium dioxide of utilization witch culture synthesizes temperature sensing material, it is characterised in that comprise the following steps：
Step S1, the vanadium dioxide preparation base soln using witch culture；
Step S2, by base soln and hydroxymethyl cellulose with mass ratio 1：8-1：15 ratio is mixed to get comprehensive solution；
Step S3, by comprehensive solution and water with mass ratio 1:10-1:20 ratio is soluble in water, obtains the comprehensive solution aqueous solution；
Step S4, will the comprehensive solution aqueous solution handle after obtain temperature sensing material.
2. the method that the vanadium dioxide of utilization witch culture according to claim 1 synthesizes temperature sensing material, it is characterised in that institute
State step S1 and specifically include following steps：
Step S1.1, by the vanadium dioxide of organic solvent and witch culture with mass ratio 11：1-8:1 ratio uniform is mixed and is made into
Solution obtains preliminary mixed solution；
Step S1.2,30-60 minutes ultrasonically treated is carried out to preliminary mixed solution；
Step S1.3, by quality for preliminary mixed solution quality 1% BYK-180 dispersants add it is ultrasonically treated after it is preliminary
Mixed solution, obtains secondary mixed solution；
Step S1.4,30-60 minutes ultrasonically treated is carried out to secondary mixed solution, obtain base soln.
3. the method that the vanadium dioxide of utilization witch culture according to claim 2 synthesizes temperature sensing material, it is characterised in that institute
State in step S1.1, the mass ratio of tungsten and vanadium dioxide is 1 in the vanadium dioxide of witch culture：25.
4. the method that the vanadium dioxide of utilization witch culture according to claim 2 synthesizes temperature sensing material, it is characterised in that institute
State in step S1.1, the mass ratio of the vanadium dioxide of organic solvent and witch culture is 9:1.
5. the method that the vanadium dioxide of utilization witch culture according to claim 1 synthesizes temperature sensing material, it is characterised in that institute
State step S4 and specifically include following steps：
Step S4.1, the comprehensive solution aqueous solution freezes in -15 DEG C~-20 DEG C of refrigerator to 12-24 hour obtain colloid material
Material；
Step S4.2, colloidal materials are placed in 15 DEG C -25 DEG C of room temperature to 2-3 hour obtain the temperature sensitive material of hydroxymethyl cellulose
Material.
6. the method that the vanadium dioxide of utilization witch culture according to claim 5 synthesizes temperature sensing material, it is characterised in that institute
State in step S4.1, cooling time is 16 hours.
7. the method that the vanadium dioxide of utilization witch culture according to claim 1 synthesizes temperature sensing material, it is characterised in that institute
The mass ratio for stating comprehensive solution and water in step S3 is 1:12.
8. the method that the vanadium dioxide of utilization witch culture according to claim 1 synthesizes temperature sensing material, it is characterised in that institute
Organic solvent is stated for dipropylene glycol methyl ether solvent.
9. a kind of utilization witch culture vanadium dioxide synthesis temperature sensing material, it is characterised in that by witch culture vanadium dioxide and
Hydroxymethyl cellulose is mixed, and the vanadium dioxide of the witch culture and the mass ratio of hydroxymethyl cellulose are 1：8-1：15.
10. the temperature sensing material of the vanadium dioxide synthesis of utilization witch culture according to claim 9, it is characterised in that described
The vanadium dioxide of witch culture and the mass ratio of hydroxymethyl cellulose are 1:10.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803652A (en) * | 2012-11-09 | 2014-05-21 | 深圳市润麒麟科技发展有限公司 | High tungsten doping content nanometer VO2 powder material and preparation method thereof |
| CN106147719A (en) * | 2015-03-23 | 2016-11-23 | 上海沪正纳米科技有限公司 | A kind of preparation method of the hot phase-change material of high transparent |
-
2017
- 2017-04-11 CN CN201710234095.7A patent/CN106957456B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803652A (en) * | 2012-11-09 | 2014-05-21 | 深圳市润麒麟科技发展有限公司 | High tungsten doping content nanometer VO2 powder material and preparation method thereof |
| CN106147719A (en) * | 2015-03-23 | 2016-11-23 | 上海沪正纳米科技有限公司 | A kind of preparation method of the hot phase-change material of high transparent |
Non-Patent Citations (2)
| Title |
|---|
| YONG-SHENG YANG ETAL.: "Tungsten doped VO2/microgels hybrid thermochromic material and its smart window application", 《RSC ADVANCES》 * |
| 梁涛: "纤维素智能材料的研究进展", 《大众科技》 * |
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Effective date of registration: 20220628 Address after: 226600 Shuanggong Road, Qutang Town, Haian City, Nantong City, Jiangsu Province, No. 18 Patentee after: Nantong Lifa Energy Saving Technology Co.,Ltd. Address before: 430073 No. 1 Textile Road, Hongshan District, Wuhan City, Hubei Province Patentee before: Wuhan Textile University |