CN109124865A - A kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof - Google Patents
A kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof Download PDFInfo
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- CN109124865A CN109124865A CN201811171125.5A CN201811171125A CN109124865A CN 109124865 A CN109124865 A CN 109124865A CN 201811171125 A CN201811171125 A CN 201811171125A CN 109124865 A CN109124865 A CN 109124865A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
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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
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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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
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/16—Materials undergoing chemical reactions when used
- C09K5/18—Non-reversible chemical reactions
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Abstract
The invention discloses a kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof, the constant temperature phase transformation sheet type spontaneous heating body is made of metal powder, active carbon, salt, water absorbent polymer, water compatible polymer, solid-solid phase-change composite material, solid-solid phase-change composite material and water.The present invention is improved on traditional formula, ensure that the heating temperature stability of spontaneous heating body；Material temperature can be adjusted, temperature can be made more preferably to be bonded human body needs by adjusting phase-change material formula；The present invention can also be used as the auxiliary product such as other products or drug, paste for human body warm, and with such as warm palace heater of composite medicine, temperature is constant, significant effect.
Description
Technical field
The present invention relates to a kind of constant temperature phase transformation sheet type spontaneous heating bodies and preparation method thereof.
Background technique
All the time, spontaneous heating composition will be enclosed in the covering material with gas permeability, to generate oxidation reaction
Heater is widely used in body heating, and warm paste is mostly sheet-like patch currently on the market, is by raw material layer, gelatin layer, nothing
Woven fabric three parts composition, raw material layer is the polymer synthesized by iron, stone, active carbon, inorganic salts, water etc., can oxygen in air
Exothermic reaction occurs under the action of gas, to achieve the effect that warm；Existing self-heating product also has and can accomplish in certain temperature
The product of constant temperature warming in range, what this kind of product used is material of the phase-change microcapsule material as regulating and controlling temperature mostly, but
The shell for being phase-change microcapsule is high molecular material, such as the phase-change microcapsule of 201711108499.8 patent disclosures, heat transfer
Property is poor, affects whole using effect.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof
The problems in technology.
First choice is related to a kind of solid-solid composite phase-change material, and the solid-solid composite phase-change material is by active carbon and paraffin group
At；
The solid-solid composite phase-change material is prepared by physical blending process, including following preparation method:
(1) paraffin and emulsifier are placed in heating, stirring in 90 DEG C~95 DEG C of water-bath and prepare paraffin wax emulsion, is emulsified
After 30~35min, paraffin wax emulsion temperature is down to 60 DEG C~65 DEG C；
(2) active carbon is added in paraffin wax emulsion, at 60 DEG C~65 DEG C, is carried out by 10~15min of mechanical stirring
Blending prepares the solid-solid composite phase-change material of active carbon and paraffin；
(3) the solid-solid composite phase-change material of the active carbon prepared and paraffin is down to room temperature again, it is broken that powdery is made；
(4) the solid-solid composite phase-change material of the active carbon being crushed after powdery is made and paraffin is reentered into 60 DEG C~65
DEG C water-bath in heat, repeat the above steps (2) and (3) 5 times, after active carbon and paraffin emulsifier are sufficiently mixed, then again
It is broken that powdering is made.
The melting point of paraffin wax is 40 DEG C~45 DEG C；
The dosage of the emulsifier and the percentage of paraffin are 4%~6%, preferably 5%；
The percentage of the active carbon and paraffin emulsifier is 15%~20%, preferably 17%；
The emulsifier is nonionic surfactant, optimizing alkyl phenol polyethenoxy ether；
A kind of constant temperature phase transformation sheet type spontaneous heating body, 2~4mm of thickness, including following components in weight percent:
The sum of percentage of each component is 100%；
Preferably, the fever metal powder is iron powder, but is not limited only to iron powder, can also utilize magnesium powder, titanium valve, zinc
Other oxidation heat liberation metal powders such as powder；
Preferably, the active carbon is adopted as carbon crystal, but is not limited only to carbon crystal, can also be using other carbon structures
Body；
Preferably, the water absorbent polymer is using polyacrylate series；
Preferably, the water compatible polymer, can also using xanthan gum, Arabic gum or carboxymethyl cellulose (CMC) etc.
To use other water compatible polymer.
Constant temperature phase transformation sheet type spontaneous heating body and preparation method thereof, includes the following steps:
(1) metal powder, active carbon, salt, water compatible polymer, water compatible mixed with polymers are stirred under room temperature,
Obtain paste；
(2) solid-solid composite phase-change material is added in paste again under room temperature and is stirred, is compressed into tablet form or needed
Other stereo structures, then under 700~720 support vacuum degrees, 80~100 DEG C drying 5~7 hours, can be obtained the constant temperature
Phase transformation sheet type spontaneous heating body, the water of formula ratio are added when in use.
The beneficial effects of the present invention are:
Paraffin is stored and is released energy as phase-change material, and structure is simple, is easy crystallization and has biggish phase
Become enthalpy, active carbon is used as framework material and supports the structure of entire material, and performance is stablized, and latent heat of phase change is high, containing active carbon with
The sheet type spontaneous heating body of paraffin solid-solid composite phase-change material can enhance because spontaneous heating body inherently contains absorbent charcoal material
Solid-solid composite phase-change material heat conductivity can be controlled by temperature in 5~60min in a steady state value, such as 40 DEG C -45
DEG C, preferred steady state value is 42~44 DEG C, and then heater can be with optimum temperature action on other objects.
The present invention is improved on traditional formula, ensure that the heating temperature stability of spontaneous heating body；It can lead to
Adjustment phase-change material formula is crossed, material temperature is adjusted, temperature can be made more preferably to be bonded human body needs；The present invention can also be used as
Other products or drug etc. assist product, paste for human body warm, and with such as warm palace heater of composite medicine, temperature is constant, effect
Significantly.
Detailed description of the invention
Fig. 1 is warmer structural schematic diagram.
Specific embodiment
Embodiment 1
Formula:
A kind of solid-solid composite phase-change material, the solid-solid composite phase-change material are made of active carbon and paraffin；
The solid-solid composite phase-change material is prepared by physical blending process, including following preparation method:
It (1) is that 40 DEG C of paraffin and emulsifier are placed in heating, stirring in 90 DEG C of water-bath and prepare paraffin wax emulsion by fusing point,
After emulsifying 30min, paraffin wax emulsion temperature is down to 60 DEG C；
(2) active carbon is added in paraffin wax emulsion, at 60 DEG C, carries out that preparation work is blended by mechanical stirring 10min
The solid-solid composite phase-change material of property charcoal and paraffin；
(3) the solid-solid composite phase-change material of the active carbon prepared and paraffin is down to room temperature again, it is broken that powdery is made；
(4) the solid-solid composite phase-change material of the active carbon being crushed after powdery is made and paraffin is reentered into 60 DEG C of water
It heats, repeats the above steps (2) and (3) 5 times in bath, after active carbon and paraffin emulsifier are sufficiently mixed, then be crushed system again
At powdering.
The dosage of emulsifier and the percentage of paraffin are 4%；
The percentage of active carbon and paraffin emulsifier is 15%；
Emulsifier is alkyl phenol polyoxyethylene ether；
A kind of constant temperature phase transformation sheet type spontaneous heating body, 2~4mm of thickness, including following components in weight percent:
Fever metal powder is iron powder, and active carbon is adopted as carbon crystal, and water absorbent polymer is using polyacrylate series；The water capacity
Property polymer use xanthan gum.
Preparation method:
(1) metal powder, active carbon, salt, water compatible polymer, water compatible mixed with polymers are stirred under room temperature,
Obtain paste；
(2) solid-solid composite phase-change material is added in paste again under room temperature and is stirred, is compressed into tablet form or needed
Other stereo structures, then under 700 support vacuum degrees, 100 DEG C drying 5 hours, can be obtained the constant temperature phase transformation sheet type from
The water of heater, formula ratio is added when in use.
It is detected using following method, temperature persistance is as follows:
(1) device: warmer structure is as shown in Figure 1, include the heater that is placed in constant temperature bucket 1 by constant temperature bucket 1
2 and blender 3 form；
(2) experimental condition: being (25 ± 2) DEG C in laboratory's atmospheric conditions, relative temperature RH is the calm shape of (50-60) %
Under the conditions of state.
(3) test procedure: heater 2 heats, and thermometric area surface temperature is made to keep (35 ± 1) DEG C；Vacuum is close
The spontaneous heating body of the constant temperature phase transformation sheet type of envelope places 2H or more in (25 ± 2) DEG C environment, takes out spontaneous heating body, is placed in bottom
On lining material (common plane suede two layers), covering material (200g/m is covered outside spontaneous heating body232 pure cotton cloths), spontaneous
It is inserted into PT100 thermal resistance (4mm diameter, 30mm length) between hot body and covering material, is fixed with elastic band.
Temperature-rise period, and start recording are observed, record the time t0；It is primary every 5 minutes records；In test fever 40min
Each period temperature maximum, temperature detection result are as follows；
| Time t/min | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | - |
| T/ DEG C of temperature | 35.0 | 39.7 | 40.3 | 41.2 | 40.6 | 40.5 | 40.8 | 41.0 | 40.9 | - |
Heat-conductive characteristic is as follows:
Prepare the sheet type spontaneous heating body containing phase-change microcapsule and the above-mentioned sheet type containing solid-solid composite phase-change material
Each three parts of spontaneous heating body, it is divided into tri- groups of A, B, C, the sheet type spontaneous heating body containing phase-change microcapsule uses Chinese patent application,
Product in Patent No. 201810496524.2.Using detection device identical with above-mentioned testing conditions, while detection contains
The sheet type spontaneous heating body of phase-change microcapsule and the sheet type spontaneous heating body surface heat containing solid-solid composite phase-change material to 40
DEG C when time, testing result is as shown in the table:
As can be seen that the sheet type spontaneous heating body temperature containing phase-change microcapsule is increased to 40 DEG C from above-mentioned testing result
When required time be all larger than the sheet type spontaneous heating body containing solid-solid composite phase-change material, it is therefore, compound containing solid-solid
The heating conduction of the sheet type spontaneous heating body of phase-change material is greater than the sheet type spontaneous heating body containing phase-change microcapsule.
Embodiment 2
Formula:
A kind of solid-solid composite phase-change material, the solid-solid composite phase-change material are made of active carbon and paraffin；
The solid-solid composite phase-change material is prepared by physical blending process, including following preparation method:
It (5) is that 43 DEG C of paraffin and emulsifier are placed in heating, stirring in 93 DEG C of water-bath and prepare paraffin wax emulsion by fusing point,
After emulsifying 33min, paraffin wax emulsion temperature is down to 63 DEG C；
(6) active carbon is added in paraffin wax emulsion, at 63 DEG C, carries out that preparation work is blended by mechanical stirring 12min
The solid-solid composite phase-change material of property charcoal and paraffin；
(7) the solid-solid composite phase-change material of the active carbon prepared and paraffin is down to room temperature again, it is broken that powdery is made；
(8) the solid-solid composite phase-change material of the active carbon being crushed after powdery is made and paraffin is reentered into 63 DEG C of water
It heats, repeats the above steps (2) and (3) 5 times in bath, after active carbon and paraffin emulsifier are sufficiently mixed, then be crushed system again
At powdering.
The dosage of emulsifier and the percentage of paraffin are 5%；
The percentage of active carbon and paraffin emulsifier is 17%；
Emulsifier is alkyl phenol polyoxyethylene ether；
A kind of constant temperature phase transformation sheet type spontaneous heating body, 2~4mm of thickness, including following components in weight percent:
Fever metal powder is iron powder, and active carbon is adopted as carbon crystal, and water absorbent polymer is using polyacrylate series；The water capacity
Property polymer use xanthan gum.
Preparation method:
(1) metal powder, active carbon, salt, water compatible polymer, water compatible mixed with polymers are stirred under room temperature,
Obtain paste；
(2) solid-solid composite phase-change material is added in paste again under room temperature and is stirred, is compressed into tablet form or needed
Other stereo structures, then under 710 support vacuum degrees, 90 DEG C drying 7 hours, it is spontaneous to can be obtained the constant temperature phase transformation sheet type
The water of hot body, formula ratio is added when in use.
It is detected using following method, temperature persistance is as follows:
(1) device: warmer structure is as shown in Figure 1, include the heater that is placed in constant temperature bucket 1 by constant temperature bucket 1
2 and blender 3 form；
(2) experimental condition: being (25 ± 2) DEG C in laboratory's atmospheric conditions, relative temperature RH is the calm shape of (50-60) %
Under the conditions of state.
(3) test procedure: heater 2 heats, and thermometric area surface temperature is made to keep (35 ± 1) DEG C；Constant temperature phase
The spontaneous heating body vacuum sealing for becoming sheet type places 2H or more in (25 ± 2) DEG C environment, takes out spontaneous heating body, is placed in bottom liner
On material (common plane suede two layers), covering material (200g/m232 branch pure cotton cloth) is covered outside spontaneous heating body, in spontaneous heating
It is inserted into PT100 thermal resistance (4mm diameter, 30mm length) between body and covering material, is fixed with elastic band.
Temperature-rise period, and start recording are observed, record the time t0；It is primary every 5 minutes records；In test fever 40min
Each period temperature maximum, temperature detection result are as follows；
| Time t/min | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | - |
| T/ DEG C of temperature | 35.0 | 41.7 | 43.3 | 43.8 | 44.2 | 43.5 | 43.4 | 43.7 | 44.0 | - |
Heat-conductive characteristic is as follows:
Prepare the sheet type spontaneous heating body containing phase-change microcapsule and the above-mentioned sheet type containing solid-solid composite phase-change material
Each three parts of spontaneous heating body, it is divided into tri- groups of A, B, C, the sheet type spontaneous heating body containing phase-change microcapsule uses Chinese patent application,
Product in Patent No. 201810496524.2.Using detection device identical with above-mentioned testing conditions, while detection contains
The sheet type spontaneous heating body of phase-change microcapsule and the sheet type spontaneous heating body surface heat containing solid-solid composite phase-change material to 43
DEG C when time, testing result is as shown in the table:
As can be seen that the sheet type spontaneous heating body temperature containing phase-change microcapsule is increased to 43 DEG C from above-mentioned testing result
When required time be all larger than the sheet type spontaneous heating body containing solid-solid composite phase-change material, it is therefore, compound containing solid-solid
The heating conduction of the sheet type spontaneous heating body of phase-change material is greater than the sheet type spontaneous heating body containing phase-change microcapsule
Embodiment 3
Formula:
A kind of solid-solid composite phase-change material, the solid-solid composite phase-change material are made of active carbon and paraffin；
The solid-solid composite phase-change material is prepared by physical blending process, including following preparation method:
It (1) is that 45 DEG C of paraffin and emulsifier are placed in heating, stirring in 95 DEG C of water-bath and prepare paraffin wax emulsion by fusing point,
After emulsifying 35min, paraffin wax emulsion temperature is down to 65 DEG C；
(2) active carbon is added in paraffin wax emulsion, at 60 DEG C, carries out that preparation work is blended by mechanical stirring 15min
The solid-solid composite phase-change material of property charcoal and paraffin；
(3) the solid-solid composite phase-change material of the active carbon prepared and paraffin is down to room temperature again, it is broken that powdery is made；
(4) the solid-solid composite phase-change material of the active carbon being crushed after powdery is made and paraffin is reentered into 65 DEG C of water
It heats, repeats the above steps (2) and (3) 5 times in bath, after active carbon and paraffin emulsifier are sufficiently mixed, then be crushed system again
At powdering.
The dosage of emulsifier and the percentage of paraffin are 6%；
The percentage of active carbon and paraffin emulsifier is 20%；
Emulsifier is alkyl phenol polyoxyethylene ether；
A kind of constant temperature phase transformation sheet type spontaneous heating body, 2~4mm of thickness, including following components in weight percent:
Fever metal powder is iron powder, and active carbon is adopted as carbon crystal, and water absorbent polymer is using polyacrylate series；The water capacity
Property polymer use xanthan gum.
Preparation method:
(1) metal powder, active carbon, salt, water compatible polymer, water compatible mixed with polymers are stirred under room temperature,
Obtain paste；
(2) solid-solid composite phase-change material is added in paste again under room temperature and is stirred, is compressed into tablet form or needed
Other stereo structures, then under 710 support vacuum degrees, 95 DEG C drying 6 hours, it is spontaneous to can be obtained the constant temperature phase transformation sheet type
The water of hot body, formula ratio is added when in use.
It is detected using following method, temperature persistance is as follows:
(1) device: warmer structure is as shown in Figure 1, include the heater that is placed in constant temperature bucket 1 by constant temperature bucket 1
2 and blender 3 form；
(2) experimental condition: being (25 ± 2) DEG C in laboratory's atmospheric conditions, relative temperature RH is the calm shape of (50-60) %
Under the conditions of state.
(3) test procedure: heater 2 heats, and makes to test temperature area surface temperature holding (35 ± 1) DEG C；Constant temperature
The spontaneous heating body vacuum sealing of phase transformation sheet type places 2H or more in (25 ± 2) DEG C environment, takes out spontaneous heating body, is placed in bottom
On lining material (common plane suede two layers), covering material (200g/m is covered outside spontaneous heating body232 pure cotton cloths), spontaneous
It is inserted into PT100 thermal resistance (4mm diameter, 30mm length) between hot body and covering material, is fixed with elastic band.
Temperature-rise period, and start recording are observed, record the time t0；It is primary every 5 minutes records；In test fever 40min
Each period temperature maximum, temperature detection result are as follows；
| Time t/min | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | - |
| T/ DEG C of temperature | 35.0 | 41.7 | 45.3 | 45.8 | 45.6 | 46.1 | 45.8 | 45.6 | 45.9 | - |
Heat-conductive characteristic is as follows:
Prepare the sheet type spontaneous heating body containing phase-change microcapsule and the above-mentioned sheet type containing solid-solid composite phase-change material
Each three parts of spontaneous heating body, it is divided into tri- groups of A, B, C, the sheet type spontaneous heating body containing phase-change microcapsule uses Chinese patent application,
Product in Patent No. 201810496524.2.Using detection device identical with above-mentioned testing conditions, while detection contains
The sheet type spontaneous heating body of phase-change microcapsule and the sheet type spontaneous heating body surface heat containing solid-solid composite phase-change material to 45
DEG C when time, testing result is as shown in the table:
As can be seen that the sheet type spontaneous heating body temperature containing phase-change microcapsule is increased to 40 DEG C from above-mentioned testing result
When required time be all larger than the sheet type spontaneous heating body containing solid-solid composite phase-change material, it is therefore, compound containing solid-solid
The heating conduction of the sheet type spontaneous heating body of phase-change material is greater than the sheet type spontaneous heating body containing phase-change microcapsule.
Claims (9)
1. a kind of constant temperature phase transformation sheet type spontaneous heating body, which is characterized in that the constant temperature phase transformation sheet type spontaneous heating body is by gold
Belong to powder, active carbon, salt, water absorbent polymer, water compatible polymer, solid-solid phase-change composite material, solid-solid phase-change composite material
It is formed with water, including following components in weight percent:
The sum of percentage of each component is 100%.
2. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that the fever metal powder is
Iron powder.
3. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that the active carbon is adopted as
Carbon crystal.
4. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that the water absorbent polymer
Using polyacrylate series.
5. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that water compatible polymer is using yellow
Virgin rubber, Arabic gum or carboxymethyl cellulose (CMC).
6. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that the solid-solid compound phase
Become material to be made of active carbon and paraffin.
7. constant temperature phase transformation sheet type spontaneous heating body according to claim 6, which is characterized in that the melting point of paraffin wax is
40 DEG C~45 DEG C.
8. constant temperature phase transformation sheet type spontaneous heating body according to claim 1, which is characterized in that heating temperature is in 5~60min
It is interior, it is steady state value within the scope of 40 DEG C -45 DEG C.
9. a kind of preparation method of constant temperature phase transformation sheet type spontaneous heating body, includes the following steps,
(1) metal powder, active carbon, salt, water compatible polymer, water compatible mixed with polymers are stirred under room temperature, is obtained
Paste；
(2) solid-solid composite phase-change material is added in paste again under room temperature and is stirred, be compressed into tablet form or need its
Its stereo structure, then under 700~720 support vacuum degrees, 80~100 DEG C drying 5~7 hours, can be obtained the constant temperature phase transformation
The water of sheet type spontaneous heating body, formula ratio is added when in use.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686115A (en) * | 2021-07-29 | 2021-11-23 | 江西锋铄新能源科技有限公司 | Ecological drying system |
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|---|---|---|---|---|
| CN113686115A (en) * | 2021-07-29 | 2021-11-23 | 江西锋铄新能源科技有限公司 | Ecological drying system |
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