CN1315975C - Chemic exothermic material and exothermic bag - Google Patents
Chemic exothermic material and exothermic bag Download PDFInfo
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- CN1315975C CN1315975C CNB2004100671178A CN200410067117A CN1315975C CN 1315975 C CN1315975 C CN 1315975C CN B2004100671178 A CNB2004100671178 A CN B2004100671178A CN 200410067117 A CN200410067117 A CN 200410067117A CN 1315975 C CN1315975 C CN 1315975C
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Abstract
The present invention discloses chemical exothermic material which is composed of iron powder, activated carbon, table salt, water, vermiculite, diatomite /silica gel and high water absorption resin. The present invention also discloses an exothermic bag which is made of the chemical exothermic material. The exothermic bag is in a double-layer structure, the inner layer is a ventilate package bag which is provided with exothermic material, and the outer layer is an airtight package bag. The chemical exothermic material and the exothermic bag of the present invention can be used for aspects of heating for human bodies and animals, plants and instrument devices heat preservation, drug efficiency increase, medical health, etc. The application effect of the chemical exothermic material can be fully exerted by adjusting the usage amount of the chemical exothermic material and the shape of the exothermic bag according to actual requirements.
Description
Technical field
The invention belongs to the exothermic material field, the heating bag that relates to a kind of chemical exothermic material and utilize this chemistry exothermic material to make.
Background technology
With metal iron powder and water is main component, and oxygen promptly produces the now existing many important application of chemical exothermic material of oxidizing reaction heating in the chance air.In fact the speed of this exothermic reaction is quite slow, and reaching equilibrium temperature (50～60 ℃) needs 3～4h.
In order to accelerate and controls reaction speed and thermal value, adopt usually to add gac and make oxide catalyst, the aqueous solution of neutral salt is made oxidation promotor, and the material with absorption water retention capacity is made the water-holding agent mutual group and is become exothermic material; Make packing bag control exothermic material by material again and constitute heating bag jointly with the amount of contact of air with ventilation property.As patent documentation CN 1172143A, CN1181482A, the technical scheme that CN1191294A describes all can satisfy the requirement that longer this index of persistent fever time is arranged.But there are the following problems: the heating-up time is long; (silica gel, aluminum oxide, vermiculite, perlite, diatomite, wilkinite, float pearl etc.) makes water-holding agent to adopt wood chip or/and one to two kind of inorganic porous material, and water retention capacity is limited, can increase the weight and volume of exothermic material; Lack and consider the influence of porous packing bag, be difficult to control the heating property of heating bag the air air penetrability.Therefore satisfy actual needs, promote the use of, remain the problem that need solve at some.
Summary of the invention
The objective of the invention is in order to overcome the above-mentioned deficiency of prior art, propose to supply a kind of heat-up rate fast, fever time and heating temp can be controlled, usability is of fine quality good, with low cost, raw material is easy to get, chemical exothermic material easy to carry and the heating bag that utilizes this chemistry exothermic material to make.
In order to achieve the above object, a kind of chemical exothermic material that the present invention proposes is made up of iron powder, gac, salt, water, vermiculite, diatomite or silica gel, super absorbent resin, and the content of each constituent is:
Iron powder 43%～70%
Gac 5%～14%
Salt 0.5%～4%
Water 15%～35%
Diatomite/or silica gel 1%～6%
Vermiculite 2%～12%
Super absorbent resin 0.5%～5%
All percentage ratios are weight percentage.
The above-mentioned iron powder of the present invention is selected from reduced iron powder, cast iron iron powder, electrolytic iron powder, efflorescence iron powder and composition thereof.
The above-mentioned gac of the present invention is selected from wood activated charcoal, shell (fruit stone) gac, coal mass active carbon, regenerated carbon and composition thereof, and activation method is not limit, and granularity is 50～600 μ m; Preferred adsorptive capacity iodine number is 800～1200mg/g, and methylene blue number is the high-adsorption active carbon of 100～300mg/g.
The above-mentioned super absorbent resin of the present invention has high suction and water retention property, and its water-absorbing-retaining amount is that tens times of own wt are to more than thousand times.General employing water-absorbing-retaining amount is the super absorbent resin of own wt more than 80 times, and granularity is 50 μ m～3 mm, and better size range is 100 μ m～2mm.Select for use super absorbent resin can reduce the weight and volume of exothermic material, suppress heating bag and in preparation and storage, produce hydrogen, prevent iron powder inactivation in storage.
The production method of relevant the present invention's chemistry exothermic material has no particular limits, and just each constituent uniform mixing is got final product.
The heating bag that the present invention proposes is a bilayer structure, and internal layer is the air permeable wrapping bag of the above-mentioned chemical exothermic material of encapsulation, and skin is non-air permeable wrapping bag.
Internal layer air permeable wrapping bag among the present invention, the two sides is made of poromeric material; Also can be the one side by poromeric material, another side is made of non-poromeric material.
The poromeric material of internal layer air permeable wrapping bag is selected from the THIN COMPOSITE sheet material of non-woven, porous thin slice, non-woven and porous membrane, the plastics film of acanthopore and the THIN COMPOSITE sheet material of non-woven.The micropore of ventilative face provides air and the contacted passage of heating constituent, the feed rate of air penetrability size control air.The Water Vapour Permeability scope of ventilative face generally is 200～900g/ (m
2D), better scope is 300～700g/ (m
2D).
The non-gas permeable material of internal layer air permeable wrapping bag is selected from plastics films such as polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer, ethylene-methyl acrylate multipolymer, the compound foil of non-woven and above-mentioned plastics film is coated with the fine sheet of sizing agent on above-mentioned plastics film.
It is that sizing agent, rubber are sizing agent and acrylic acid series sizing agent that the sizing agent that is used for the coat plastics film among the present invention is selected from vinyl acetate.
Be covered in peelable layer on the sizing agent among the present invention and be selected from compound thin layer, paper, the synthetic paper of polyethylene film, polypropylene film, polyester film, polyethylene and the paper handled through the organosilane constituent.
Non-ventilation property outer packaging bag among the present invention is by having the material of high barrier to constitute to air, water vapour, and this material is selected from polyethenol series laminated film, aluminium foil laminated film, polyvinylidene dichloride coating or coextrusion composite film.Guarantee the quality and store needs for satisfying, to the requirement of outer packaging bag barrier be: steam penetrating capacity is lower than 4.0g/ (m
2D), oxygen transmission rate is lower than 1.18 * 10
-4Cm
3/ (m
2DPa).
With respect to the chemical exothermic material of prior art, chemical exothermic material heat-up rate of the present invention is fast, and fever time and heating temp can be controlled, and usability is of fine quality good, and with low cost, raw material is easy to get, and is easy to carry.The present invention's chemistry exothermic material and heating bag can be used in human body and animal heating, plant and plant and instrument insulation, aspects such as medicine synergy and health care, the shape of adjusting the consumption of chemical exothermic material and heating bag according to actual needs can be given full play to the effect of this chemistry exothermic material.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described further:
Following embodiment of the present invention and comparative example adopt following measuring method:
20 ± 1 ℃ of envrionment temperatures, humidity 50～70%.Placing thickness on the platform of 30 ± 1 ℃ of bottom temps is 7 layers of 1mm acrylic sheets, and hospital gauze is formed underlayer for 2 layers.8 layers of 100% cotton flannelettes are made tectum.Insert and put heating bag and thermopair at two interlayers, measure its heating property.
Heating-up time: needed time when sample is warmed up to 40 ℃ from beginning heating.
Top temperature: the top temperature that sample heating records.
Time length: from 40 ℃, turn back to 40 ℃ of times that record again through top temperature after the sample heating, (in hour, the casting out of less than 1 hour).
Embodiment 1
With iron powder 20.16g, high-adsorption active carbon 3.24g, salt 0.86g, water 7.78g, vermiculite 2.52g, diatomite 0.72g, super absorbent resin 0.72g mixes, be encapsulated into by nylon non-woven and porous polyethylene film THIN COMPOSITE sheet material and constitute ventilative face, the polyethylene film that scribbles sizing agent constitutes in the air permeable wrapping bag of non-ventilative face, the long 130mm of bag, the wide 100mm of bag, four banding fabric width 6mm, Water Vapour Permeability 450g/m
2D.Record heating property: heating-up time 8min, 61 ℃ of top temperatures, heating continuing time 14h.
Comparative example 1
With iron powder 20.16g, gac 3.24g, salt 0.86g, water 7.78g, vermiculite 3.24g, diatomite 0.72g mixes, and used air permeable wrapping bag is identical with embodiment 1 with Water Vapour Permeability.Record heating property: heating-up time 20min, 64 ℃ of top temperatures, heating continuing time 10h.
Embodiment 2
With iron powder 20.16g, high-adsorption active carbon 3.24g, salt 0.97g, water 8.75g, vermiculite 1.08g, silica gel 1.08g, super absorbent resin 0.72g mixes, be encapsulated into the ventilative face that constitutes by nylon non-woven and porous polyethylene film THIN COMPOSITE sheet material, the polyethylene film that scribbles sizing agent constitutes in the air permeable wrapping bag of non-ventilative face, the long 130mm of bag, the wide 95mm of bag, four banding fabric width 6mm, Water Vapour Permeability 450g/m
2D.Record heating property: heating-up time 12min, 55 ℃ of top temperatures, heating continuing time 16h.
Comparative example 2
The composition of exothermic material is identical with embodiment 2 with the air permeable wrapping bag, and Water Vapour Permeability is 700g/m
2D.Record heating property: heating-up time 5min, 62 ℃ of top temperatures, heating continuing time 10h.
Embodiment 3
With iron powder 22.4g, high-adsorption active carbon 3.6g, salt 0.96g, water 8.64g, vermiculite 2.8g, diatomite 0.8g, super absorbent resin 0.8g mixes, be encapsulated into by nylon non-woven and porous polyethylene film THIN COMPOSITE sheet material and constitute ventilative face, another side is made of in the air permeable wrapping bag of non-ventilation property face nylon non-woven and polyethylene film THIN COMPOSITE sheet material, the long 132mm of bag, the wide 100mm of bag, four banding fabric width 6mm, Water Vapour Permeability 450g/m
2.d.Record heating property: heating-up time 10min, 66 ℃ of top temperatures, heating continuing time 18h.
Comparative example 3
With iron powder 22.4g, gac 3.6g, salt 0.96g, water 8.64g, vermiculite 2.8g, diatomite 0.8g, super absorbent resin 0.8g mixes, and used air permeable wrapping bag is identical with embodiment 3 with Water Vapour Permeability.Record heating property: heating-up time 17min, 67 ℃ of top temperatures, heating continuing time 16h.
Embodiment 4
With iron powder 6.72g, high-adsorption active carbon 1.08g, salt 0.29g, water 2.59g, vermiculite 0.84g, diatomite 0.24g, super absorbent resin 0.24g mix, and are encapsulated in the air permeable wrapping bag that the two sides is made of nylon non-woven and porous polyethylene film THIN COMPOSITE sheet material, the long 60mm of bag, the wide 50mm of bag, four banding fabric width 5mm, Water Vapour Permeability 300g/m
2D.Record heating property: heating-up time 5min, the highest 65 ℃, high heating continuing time 8h.
Comparative example 4
With iron powder 6.72g, high-adsorption active carbon 1.08g, salt 0.29g, water 2.59g, vermiculite 1.08g, diatomite 0.24g mixes, and used air permeable wrapping bag is identical with embodiment 4 with Water Vapour Permeability.Record heating property: heating-up time 7min, 66 ℃ of top temperatures, heating continuing time 7h.
Claims (9)
1. a chemical exothermic material is characterized in that being made up of iron powder, gac, salt, water, vermiculite, diatomite or silica gel, super absorbent resin, and the content of each constituent is:
Iron powder 43%～70%
Gac 5%～14%
Salt 0.5%～4%
Water 15%～35%
Diatomite or silica gel 1%～6%
Vermiculite 2%～12%
Super absorbent resin 0.5%～5%
All percentage ratios are weight percentage.
2. chemical exothermic material according to claim 1, the granularity that it is characterized in that described gac are 50 μ m～600 μ m.
3. chemical exothermic material according to claim 2 is characterized in that described gac is that the adsorptive capacity iodine number is 800～1200mg/g, and methylene blue number is the high-adsorption active carbon of 100～300mg/g.
4. chemical exothermic material according to claim 1, the granularity that it is characterized in that described super absorbent resin are 50 μ m～3mm.
5. chemical exothermic material according to claim 4, the water-absorbing-retaining amount that it is characterized in that described super absorbent resin are more than 80 times of own wt.
6, a kind of heating bag is characterized in that being bilayer structure, and internal layer is the air permeable wrapping bag that is packaged with any one described chemical exothermic material of claim 1-5, and skin is non-air permeable wrapping bag.
7. heating bag according to claim 6 is characterized in that the Water Vapour Permeability of the ventilative face of described ventilation property packing inside bag is 200～900g/ (m
2D).
8. heating bag according to claim 7 is characterized in that the Water Vapour Permeability of the ventilative face of described ventilation property packing inside bag is 300～700g/ (m
2.d).
9. heating bag according to claim 6 is characterized in that described non-ventilation property outer packaging bag is made of polyethenol series laminated film, aluminium foil laminated film, polyvinylidene dichloride coating or coextrusion composite film, and its barrier is: Water Vapour Permeability is lower than 4.0g/ (m
2.d), oxygen transmission rate is lower than 1.18 * 10
-4Cm
3/ (m
2DP) a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100671178A CN1315975C (en) | 2004-10-13 | 2004-10-13 | Chemic exothermic material and exothermic bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100671178A CN1315975C (en) | 2004-10-13 | 2004-10-13 | Chemic exothermic material and exothermic bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760310A CN1760310A (en) | 2006-04-19 |
| CN1315975C true CN1315975C (en) | 2007-05-16 |
Family
ID=36706537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100671178A Active CN1315975C (en) | 2004-10-13 | 2004-10-13 | Chemic exothermic material and exothermic bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN1315975C (en) |
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|---|---|
| CN1760310A (en) | 2006-04-19 |
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