CN105778161A - Temperature-sensitive chromic material - Google Patents
Temperature-sensitive chromic material Download PDFInfo
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- CN105778161A CN105778161A CN201610178993.0A CN201610178993A CN105778161A CN 105778161 A CN105778161 A CN 105778161A CN 201610178993 A CN201610178993 A CN 201610178993A CN 105778161 A CN105778161 A CN 105778161A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/12—Agar or agar-agar, i.e. mixture of agarose and agaropectin; Derivatives thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
- C08J2305/12—Agar-agar; Derivatives thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/08—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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Abstract
The invention discloses a temperature-sensitive chromic material. The temperature-sensitive chromic material is prepared from 0.5 to 2 percent of temperature-sensitive macromolecules by mass; 0 to 30 percent of film-forming monomers by mass; 0 to 5 percent of thickening agent by mass; 0 to 1 percent of dispersing agent by mass; 0 to 0.5 percent of cross-linking agent by mass; 0 to 3 percent of oxidizing agent by mass; 0 to 1 percent of reducing agent by mass, wherein a solvent of the temperature-sensitive chromic material is water. The temperature-sensitive chromic material according to the invention has the characteristic of intelligent light ray and heat adjustment according to temperature, not only can reduce heat penetrating through sunlight, but also can keep good transparency, and is applicable to various places such as dwellings, office buildings and greenhouses where temperature and light rays need to be adjusted.
Description
Technical field
The present invention relates to field of material technology, particularly relate to a kind of temperature sensing color changing material.
Background technology
Along with economic fast development, energy-conservation and environmental protection becomes the theme in epoch.The light modulation film made by Intelligent temperature sensitive allochromatic material, it is possible to along with the change of environment changes its transmission behavior to sunlight, the heat of transmission in sunlight can be significantly reduced, the good transparency can be kept again, thus be subject to increasingly paying attention to widely.
In correlation technique, comparatively ripe light modulation film has electrically-controlled liquid crystal film, and it is liquid crystal film (wherein, PVB and polyvinyl butyral resin, for the english abbreviation of polyvinylbutyral by PVB/EVA；EVA is ethane-acetic acid ethyenyl (vinyl acetate) ester copolymer, and English is: EthyleneVinylAcetate, referred to as EVA, or E/VAC) film covers the most central, then forms through High Temperature High Pressure gluing.When electric control product closes power supply, the liquid crystal molecule in electric-controlled light-regulating film can present irregular spread state, makes light to inject, so that automatically controlled film presents opaque outward appearance；After energising, the liquid crystal molecule of the inside presents proper alignment, light can free penetrating, now automatically controlled film presents pellucidity.But, above-mentioned technology is passive type variable color, it is necessary to additional power source, and energy consumption is higher, and light tight during power-off, printing opacity during energising, it is impossible to meet the demand of building doors and windows well.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique.For this, the invention reside in a kind of temperature sensing color changing material of proposition, described temperature sensing color changing material can when ambient temperature height scattering sunlight, reduce the heat passed through in sunlight, temperature can recover again the good transparency after declining.
Temperature sensing color changing material according to embodiments of the present invention, including: Temperature Responsive Polymer: mass percent is 0.5%～2%；Film forming monomer: mass percent is 0～35%；Thickening agent: mass percent is 0～5%；Dispersant: mass percent is 0～1%；Cross-linking agent: mass percent is 0～0.5%；Oxidant: mass percent is 0～3%；Reducing agent: mass percent is 0～1%, wherein, the solvent of described temperature sensing color changing material is water.
Temperature sensing color changing material according to embodiments of the present invention, has the feature according to temperature intelligent light regulating and heat, and this temperature sensing color changing material can reduce the heat passed through in sunlight, can keep again the good transparency.Need to regulate the place of temperature and light suitable in various houses, office building, warmhouse booth etc..
It addition, temperature sensing color changing material according to the above embodiment of the present invention can also have following additional technical characteristic:
According to some embodiments of the present invention, described Temperature Responsive Polymer is one or both mixing in polyoxyethylene-poly-oxypropylene polyoxyethylene block copolymer, polyoxyethylene-polybutylene-polyoxyethylene block copolymer or polyoxyethylene-polyoxy amylene-polyoxyethylene block copolymer, and the molecular weight of described Temperature Responsive Polymer is at 1x103G/mol to 1x104Between g/mol.
In some embodiments of the invention, described film forming monomer is one or more the mixture in acrylamide, 2-acrylamide-2-methyl propane sulfonic, N-isopropylacrylamide, DMAA.
According to some embodiments of the present invention, described thickening agent is one or more the mixture in gelatin, agar, methylcellulose, sodium alginate, carrageenan, carboxylic propyl methocel.
In some embodiments of the invention, described dispersant is one or more mixture in sodium lauryl sulphate, dodecylbenzene sodium sulfonate, sodium glycocholate.
According to some embodiments of the present invention, described cross-linking agent is one or more mixture of N, N '-methylene-bisacrylamide, N, N, N', N'-tetramethylethylenediamine, dimethacrylate.According to some embodiments of the present invention, the pH value of described temperature sensing color changing material is adjusted to neutrality.
In some embodiments of the invention, the material being used for regulating pH value can be NaOH, Na2CO3, KOH or K2CO3In one or more combinations, the mass percent of material being used for regulating pH value is 0～5%.
According to some embodiments of the present invention, described temperature sensing color changing material is seal after liquid form fills in transparent cavity or film-forming is placed in transparent cavity to use.
In some embodiments of the invention, the mode that described temperature sensing color changing material solidifies includes redox curing, heat cure and cooling curing.
In some embodiments of the invention, the initiation polymerization methods of described temperature sensing color changing material is redox curing, wherein oxidant is the mixture of one or more in acyl peroxide, hydrogen peroxide, sodium peroxydisulfate, Ammonium persulfate., and reducing agent is the mixture of one or more in ethylenediamine, morpholine, five-membered ring amine, sodium sulfite, ammonium bisulfite.
In some embodiments of the invention, described temperature sensing color changing material is water white transparency when lower than critical temperature, temperature higher than described critical temperature time be white, can scattering and reflect 80% light and heat, described critical temperature range for 20 DEG C～70 DEG C adjustable.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the embodiments described below is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The present invention provides a kind of temperature sensing color changing material, and described temperature sensing color changing material can be poured in transparent cavity in liquid form, for instance in double glazing, plastic uptake film cavity or other cavity, it is possible to be allowed to condition in cavity by certain method and be solidified into hydrogel.Temperature sensing color changing material according to embodiments of the present invention, when lower than critical temperature, temperature sensing color changing material is colourless, can pass through most light；When temperature is higher than certain critical temperature, sensitive allochromatic material is white, can scattering and reflection 80% light and heat, and this critical temperature is adjustable from 25 DEG C to 55 DEG C, there is the feature according to ambient intelligence light regulating and heat, it is adaptable to various houses, office building, warmhouse booth etc. need to regulate the place of temperature and light.Described temperature sensing color changing material can also be combined with heating plate, makes active light modulation film, for indoor partition or as projecting hard screen etc..
Temperature sensing color changing material according to embodiments of the present invention is described below in detail.
Temperature sensing color changing material according to embodiments of the present invention, including: Temperature Responsive Polymer: mass percent is 0.5%～2%；Film forming monomer: mass percent is 0～30%；Thickening agent: mass percent is 0～5%；Dispersant: mass percent is 0～1%；Cross-linking agent: mass percent is 0～0.5%；Oxidant: mass percent is 0～3%；Reducing agent: mass percent is 0～1%, wherein, the solvent of described temperature sensing color changing material is water, selects nontoxic water can reduce the even elimination temperature sensing color changing material harm to human body as solvent, it is also possible to suitably to reduce the use cost of temperature sensing color changing material.Temperature sensing color changing material according to embodiments of the present invention, occurs color to change when reaching specified temp, and when temperature returns to initial standard value, color also replys original color accordingly.
Wherein, Temperature Responsive Polymer refers to the macromolecular material that variations in temperature is sensitive.The change of the character such as conductivity, heat conductivity, refractive index is caused such as variations in temperature.The mass percent of described temperature sensing color changing temperature in materials sensitive high molecular weight can be 0.5%, 0.6%, 0.75%, 0.9%, 1% or 2%.
In polymer chemistry, monomer be can with of the same race or he plant molecule by covalent bond be connected generate polymer little molecule.Select film forming monomer can promote macromolecular compound Plastic Flow and elastic deformation rightly, improve coalescence performance, can in wide temperature range film forming.Final form according to temperature sensing material, in described temperature sensing color changing material, the mass percent of film forming monomer can be 0,5%, 7%, 9%, 11%, 12.5%, 14%, 16%, 18%, 20%, 25% or 30%.
Thickening agent is a kind of auxiliary rheological agents, is widely used in food, coating, adhesive, cosmetics, detergent, printing and dyeing, rubber, medicine and other fields.According to the actual requirements, in described temperature sensing color changing material, the mass percent of thickening agent can be 0,0.2%, 0.4%, 0.7%, 0.9%, 1.1%, 1.3%, 1.5%, 1.7%, 1.9%, 2%, 3%, 4% or 5%.
Dispersant is a kind of interfacial agent in molecule simultaneously with lipophile and two kinds of opposite nature of hydrophilic.Can homogeneous dispersion those be poorly soluble in liquid inorganic, the solid particle of organic pigment, also can prevent sedimentation and the cohesion of solid particle simultaneously, form the medicament needed for stable suspension.In described temperature sensing color changing material, the mass percent of dispersant can be 0,0.1%, 0.25%, 0.4%, 0.5%, 0.75% or 1%.
Cross-linking agent be one can at intermolecular bridging action of line style so that multiple linear molecule is mutually bonded is cross-linked into cancellated material.In described temperature sensing color changing material, the mass percent of cross-linking agent can be 0,0.01%, 0.05%, 0.15%, 0.25%, 0.35%, 0.45% or 0.5%.
In redox reaction, it is thus achieved that the material of electronics is called oxidant, correspondingly, the material losing electronics is called reducing agent.In described temperature sensing color changing material, the mass percent of oxidant can be 0,0.5%, 0.8%, 1.0%, 1.3%, 1.5%, 2.0%, 2.5% or 3%.In described temperature sensing color changing material, the mass percent of reducing agent can be 0,0.1%, 0.15%, 0.25%, 0.3%, 0.4%, 0.5%, 0.7%, 0.85% or 1%.
Here, it is necessary to explanation, in temperature sensing color changing material, the concrete mass percent of above-mentioned each composition can select by adaptability in actual applications.
Temperature sensing color changing material according to embodiments of the present invention, has the feature according to ambient intelligence light regulating and heat, and this temperature sensing color changing material can reduce the heat passed through in sunlight, can keep again the good transparency.Need to regulate the place of temperature and light suitable in various houses, office building, warmhouse booth etc..
It addition, temperature sensing color changing material according to embodiments of the present invention can also be combined with heating plate, make active light modulation film, for indoor partition or as projecting hard screen etc..
According to some embodiments of the present invention, described Temperature Responsive Polymer can be one or both mixing in polyoxyethylene-poly-oxypropylene polyoxyethylene block copolymer, polyoxyethylene-polybutylene-polyoxyethylene block copolymer or polyoxyethylene-polyoxy amylene-polyoxyethylene block copolymer, and the molecular weight of described Temperature Responsive Polymer is at 1x103G/mol to 1x104Between g/mol.Thus, it is possible to select the above-mentioned macromolecular material (i.e. Temperature Responsive Polymer) that variations in temperature is sensitive according to actual needs so that the change of described Temperature Responsive Polymer is prone to observe.
Wherein, the molecular weight of described Temperature Responsive Polymer is limited to 1x103G/mol to 1x104Between g/mol, it is possible to enable naked eyes to observe the change of Temperature Responsive Polymer preferably.The molecular weight of described Temperature Responsive Polymer can be 1x103g/mol、3x103g/mol、5x103g/mol、7x103g/mol、8.5x103G/mol or 1x104g/mol。
In some embodiments of the invention, described film forming monomer can be one or more the mixture in acrylamide, 2-acrylamide-2-methyl propane sulfonic, N-isopropylacrylamide, DMAA.Wherein, select film forming monomer can promote macromolecular compound Plastic Flow and elastic deformation rightly, improve coalescence performance, can in wide temperature range film forming.
According to some embodiments of the present invention, described thickening agent is one or more the mixture in gelatin, agar, methylcellulose, sodium alginate, carrageenan, carboxylic propyl methocel.Thickening agent is a kind of auxiliary rheological agents, thus it is possible to vary the denseness of temperature sensing color changing material, and the concrete form of thickening agent can select by adaptability according to actual needs.
In some embodiments of the invention, described dispersant is one or more mixture in sodium lauryl sulphate, dodecylbenzene sodium sulfonate, sodium glycocholate.Dispersant is a kind of interfacial agent in molecule simultaneously with lipophile and two kinds of opposite nature of hydrophilic.Can homogeneous dispersion those be poorly soluble in liquid inorganic, the solid particle of organic pigment, also can prevent sedimentation and the cohesion of solid particle simultaneously, form the medicament needed for stable suspension.Thus, it is possible to make temperature sensing color changing material more stable.
According to some embodiments of the present invention, described cross-linking agent is one or more mixture of N, N '-methylene-bisacrylamide, N, N, N', N'-tetramethylethylenediamine, dimethacrylate.Cross-linking agent be one can at intermolecular bridging action of line style so that multiple linear molecule is mutually bonded is cross-linked into cancellated material.The chemical stability of temperature sensing color changing material can be improved to a certain extent after adding cross-linking agent.
Wherein, polymerization refers to that monomeric small molecule passes through to be connected with each other becomes chain macromolecule, especially very big molecule, and general molecular weight reaches more than 5000, it might even be possible to reach several ten million.Thus obtaining a kind of new material, it is called macromolecular material.
According to some embodiments of the present invention, the pH value of described temperature sensing color changing material is adjusted to neutrality.Thus, it is possible to reduce the corrosivity of temperature sensing color changing material to a great extent, thus improving the safety in utilization of temperature sensing color changing material.
Further, the material being used for regulating pH value can be NaOH, Na2CO3, KOH or K2CO3In one or more combinations, the mass percent of material being used for regulating pH value is 0～5%.
Wherein, NaOH, Na2CO3, KOH and K2CO3Being highly basic, regulate the pH value of temperature sensing color changing material with one or more in above-mentioned highly basic, effect can become apparent from, and can improve the preparation efficiency of temperature sensing color changing material.It addition, the mass percent of the material for regulating pH value can be 0,1%, 1.5%, 2%, 3%, 4%, 4.5% or 5%.Being used for regulating the concrete material of pH value and mass percent can accommodation in actual applications.
According to some embodiments of the present invention, described temperature sensing color changing material is seal after liquid form fills in transparent cavity or film-forming is placed in transparent cavity to use.Thus, it is possible to make temperature sensing color changing material easy to use, store and transfer.In some embodiments of the invention, the mode that described temperature sensing color changing material solidifies can include redox curing, heat cure and cooling curing.Wherein, the process that temperature sensing color changing material is become solid-state by liquid is made to be called solidification by proper method.After being solidified by certain mode, it is possible to make temperature sensing color changing material be prone to use and be readily transported.
In some embodiments of the invention, the initiation polymerization methods of described temperature sensing color changing material can be redox curing, wherein oxidant is the mixture of one or more in acyl peroxide, hydrogen peroxide, sodium peroxydisulfate, Ammonium persulfate., and reducing agent is the mixture of one or more in ethylenediamine, morpholine, five-membered ring amine, sodium sulfite, ammonium bisulfite.By being basically completed the preparation of temperature sensing color changing material after redox curing.
Here, it is necessary to explanation, initiation polymerization is a kind of curing mode of liquid temperature sensing color changing material, can so that described temperature sensing color changing material is easy to use and stores by initiation polymerization.
In some embodiments of the invention, described temperature sensing color changing material is water white transparency when lower than critical temperature, temperature higher than described critical temperature time be white, can scattering and reflect 80% light and heat, described critical temperature range for 20 DEG C～70 DEG C adjustable.Thus so that this temperature sensing color changing material can reduce the heat passed through in sunlight, the good transparency can be kept again, such that it is able to expand the subject range of described temperature sensing color changing material to a certain extent.
Wherein, described critical temperature can be 20 DEG C, 25 DEG C, 30 DEG C, 35 DEG C, 40 DEG C, 45 DEG C, 55 DEG C, 60 DEG C or 70 DEG C.
Several specific embodiments of temperature sensing color changing material according to the present invention are described below in detail.
Embodiment one:
A) 0.5g～0.9g polyoxyethylene-polyoxy amylene-polyoxyethylene block copolymer is weighed, 0g～5g methylcellulose, 0～0.5g sodium lauryl sulphate is dissolved in 100ml deionized water together, stirs, and pours into after in the thick glass cavity of 2mm and seal after froth in vacuum.
B) film of gained water white transparency when room temperature, starts variable color when 25 DEG C～40 DEG C, complete devitrification when 30 DEG C～50 DEG C.
Here, it is necessary to explanation, " complete devitrification " refers to light transmittance less than 5% (lower same).
Embodiment two:
A) weighing 2g agar, add in 100ml water, 120 DEG C of heated and stirred are to being completely dissolved；
B) weighing 0.75g polyoxyethylene-poly-oxypropylene polyoxyethylene block copolymer, add in 50ml water, stirring at normal temperature is to being uniformly dispersed；
C), in the agar solution being mixed in step a by the solution of gained in step b gained, after 120 DEG C of stirring 5min, cooling film forming under mould room temperature is poured into；
D) the lower 25 DEG C of water white transparencies of the film room temperature of gained, start variable color when 30 DEG C, complete devitrification when 35 DEG C.
Embodiment three:
A) weighing 0.5～1g polyoxyethylene-polybutylene-polyoxyethylene block copolymer, 3.5g～15g2-acrylamide-2-methyl propane sulfonic adds in 100ml water, stirs；
B) weigh 1.2g～5g sodium carbonate and regulate pH value to neutral；
C) solution of gained is mixed into 3.5g～15g acrylamide, 0.01～0.3g sodium lauryl sulphate, 0.03～0.3gN, N '-methylene-bisacrylamide in stepb, stirs；
D) being mixed into 0.3g～0.6g sodium sulfite, 0.65g～1.3g Ammonium persulfate. in the solution of step c gained, stir final vacuum froth breaking；
E) gained solution is poured into solidification room temperature film-forming in airtight container；F) water white transparency, complete devitrification when 40 DEG C～70 DEG C during the film of gained 30 DEG C～50 DEG C.
Temperature sensing color changing material according to embodiments of the present invention, has the feature according to temperature intelligent light regulating and heat, and this temperature sensing color changing material can reduce the heat passed through in sunlight, can keep again the good transparency.When lower than critical temperature, temperature sensing color changing material is colourless, can pass through most light；When temperature is higher than certain critical temperature, temperature sensing color changing material is white, can scattering and reflection 80% light and heat, and this critical temperature is adjustable from 20 DEG C to 70 DEG C, there is the feature according to ambient intelligence light regulating and heat, it is adaptable to various houses, office building, warmhouse booth etc. need to regulate the place of temperature and light.It addition, temperature sensing color changing material according to embodiments of the present invention can also be combined with heating plate, make active light modulation film, for indoor partition or as projecting hard screen etc..
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (12)
1. a temperature sensing color changing material, it is characterised in that including:
Temperature Responsive Polymer: mass percent is 0.5%～2%；
Film forming monomer: mass percent is 0～30%；
Thickening agent: mass percent is 0～5%；
Dispersant: mass percent is 0～1%；
Cross-linking agent: mass percent is 0～0.5%；
Oxidant: mass percent is 0～3%；
Reducing agent: mass percent is 0～1%,
Wherein, the solvent of described temperature sensing color changing material is water.
2. temperature sensing color changing material according to claim 1, it is characterised in that:
Described Temperature Responsive Polymer is one or both mixing in polyoxyethylene-poly-oxypropylene polyoxyethylene block copolymer, polyoxyethylene-polybutylene-polyoxyethylene block copolymer and polyoxyethylene-polyoxy amylene-polyoxyethylene block copolymer, and the molecular weight of described Temperature Responsive Polymer is at 1x103G/mol to 1x104Between g/mol.
3. temperature sensing color changing material according to claim 1, it is characterised in that:
Described film forming monomer is one or more the mixture in acrylamide, 2-acrylamide-2-methyl propane sulfonic, N-isopropylacrylamide, DMAA.
4. temperature sensing color changing material according to claim 1, it is characterised in that:
Described thickening agent is one or more the mixture in gelatin, agar, methylcellulose, sodium alginate, carrageenan, carboxylic propyl methocel.
5. temperature sensing color changing material according to claim 1, it is characterised in that:
Described dispersant is one or more mixture in sodium lauryl sulphate, dodecylbenzene sodium sulfonate, sodium glycocholate.
6. temperature sensing color changing material according to claim 1, it is characterised in that:
Described cross-linking agent is one or more mixture of N, N '-methylene-bisacrylamide, N, N, N', N'-tetramethylethylenediamine, dimethacrylate.
7. temperature sensing color changing material according to claim 1, it is characterised in that: the pH value of described temperature sensing color changing material is adjusted to neutrality.
8. temperature sensing color changing material according to claim 7, it is characterised in that:
The material being used for regulating pH value can be NaOH, Na2CO3, KOH or K2CO3In one or more combination, the mass percent of material being used for regulating pH value is 0～5%.
9. temperature sensing color changing material according to claim 1, it is characterised in that:
Described temperature sensing color changing material is seal after liquid form fills in transparent cavity or film-forming is placed in transparent cavity to use.
10. temperature sensing color changing material according to claim 9, it is characterised in that:
The mode that described temperature sensing color changing material solidifies includes redox curing, heat cure and cooling curing.
11. temperature sensing color changing material according to claim 10, it is characterised in that:
The initiation polymerization methods of described temperature sensing color changing material is redox curing, wherein oxidant is the mixture of one or more in acyl peroxide, hydrogen peroxide, sodium peroxydisulfate, Ammonium persulfate., and reducing agent is the mixture of one or more in ethylenediamine, morpholine, five-membered ring amine, sodium sulfite, ammonium bisulfite.
12. temperature sensing color changing material according to claim 1, it is characterized in that: described temperature sensing color changing material is water white transparency when lower than critical temperature, it is white when temperature is higher than described critical temperature, can scattering and reflection 80% light and heat, described critical temperature range for 20 DEG C～70 DEG C adjustable.
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| CN106504628A (en) * | 2016-10-27 | 2017-03-15 | 南丹县青少年学生校外活动中心 | A kind of color mud that can be used to make teaching aid |
| CN106543380A (en) * | 2016-10-20 | 2017-03-29 | 重庆禾维科技有限公司 | Temperature sensing color changing material and preparation method thereof and single plane fluoroscopy temperature sensitive type glass |
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| CN114672198A (en) * | 2022-04-02 | 2022-06-28 | 重庆禾维科技有限公司 | Temperature-sensitive composition and preparation method and application thereof |
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| CN110343213A (en) * | 2019-07-16 | 2019-10-18 | 山东大学 | A kind of hydrogel of temperature switch, preparation method and its application in glass material |
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| CN112552432A (en) * | 2020-11-14 | 2021-03-26 | 中国石油天然气股份有限公司 | Active microgel reinforced hydrogel and preparation method thereof |
| CN112552432B (en) * | 2020-11-14 | 2022-11-04 | 中国石油天然气股份有限公司 | Active microgel reinforced hydrogel and preparation method thereof |
| CN112226111A (en) * | 2020-11-16 | 2021-01-15 | 柔微智能科技(苏州)有限公司 | Irreversible temperature-sensitive paste and temperature-sensitive color-changing ink |
| CN114672198A (en) * | 2022-04-02 | 2022-06-28 | 重庆禾维科技有限公司 | Temperature-sensitive composition and preparation method and application thereof |
| CN115449210A (en) * | 2022-09-23 | 2022-12-09 | 天津市思特玻璃有限公司 | High-strength temperature-sensitive color-changing hydrogel light-adjusting glass |
| CN115651388A (en) * | 2022-09-23 | 2023-01-31 | 天津市思特玻璃有限公司 | High-strength temperature-sensitive color-changing hydrogel |
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