CN100452930C - Face shaped exothermic material with electric bamboo as packing material and preparation method - Google Patents
Face shaped exothermic material with electric bamboo as packing material and preparation method Download PDFInfo
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- CN100452930C CN100452930C CNB2004100990116A CN200410099011A CN100452930C CN 100452930 C CN100452930 C CN 100452930C CN B2004100990116 A CNB2004100990116 A CN B2004100990116A CN 200410099011 A CN200410099011 A CN 200410099011A CN 100452930 C CN100452930 C CN 100452930C
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- adhesive
- bamboo
- inserts
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- exothermic material
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Abstract
The present invention relates to face-shaped exothermic material with conductive bamboo charcoal as packing material and a preparation method thereof. The present invention solves the technical problem to provide the face-shaped exothermic material with conductive bamboo charcoal as packing material and the preparation method thereof. The whole surface of an electric heating device made of the material of the present invention becomes an exothermic surface and a heat radiating surface, which is favourable for heat transfer and dispersal; local high temperature can not form. The present invention has the advantages of small current density, safe use, high heat efficiency, energy saving, wide application range and flexibility. Various conductive exothermic bodies with different resistance values, different heating areas and different physical shapes can be prepared according to different requirements. The technical scheme to solve the problem is that the exothermic material has the main components that conductive bamboo charcoal granules are used as conductive media and an organic or inorganic bond is used as a basal body, wherein the weight percentage of the bamboo charcoal granules is from 10 to 70 and the surplus is the organic or inorganic bond. The present invention can be used for industrial or civil warming, temperature preserving and heating facilities.
Description
Technical field
The present invention relates to a kind of is the planar exothermic material and preparation method thereof of inserts with the electric bamboo.Be applicable on the facility of industrial or civilian heating, insulation, heating.
Background technology
In the prior art, flat heating element adopts electric heating elements such as metallic resistance silk to be installed in usually and makes in the insulating material, so-called planar heating is that whole surface all is a heater, but all there is deficiency in the device with the heating of electric heating elements such as metal electric heating silk aspect homogeneous heating degree, fail safe and the heat efficiency, and is particularly outstanding when especially using as family's heating.
Summary of the invention
The technical problem to be solved in the present invention is: providing a kind of is the planar exothermic material and preparation method thereof of inserts with the electric bamboo, the whole surface of electric heater unit made from material of the present invention all becomes heating face and radiating surface, help heat transferred, evacuation, can not form localized hyperthermia; Current density is little, and is safe in utilization; Heat efficiency height, energy-conservation; Applied widely, have flexibility, can be prepared into various different resistance values and heating surface (area) (HS according to different demands, and the conductive heating unit of different physical forms.
The technical solution adopted in the present invention is: a kind of is the planar exothermic material of inserts with the electric bamboo, it is mainly formed is to be conducting medium with the electric bamboo particle, with the organic or inorganic adhesive is matrix, wherein: the percentage by weight of bamboo charcoal particle is 10～70, and surplus is the organic or inorganic adhesive.
Described adhesive is phenolic resins, acrylic resin, alkyd resins.
Described adhesive is ABS, PVC plastics.
Described adhesive is cement, gypsum.
In described resinae adhesive, also can add percentage by weight and be 0.1～1 carbon black disperser and percentage by weight and be 0.1～1 coupling agent.
In described inorganic bond, also can add percentage by weight and be 0.1～0.5 foam inhibitor and defoamer.
A kind of is that the preparation method of the planar exothermic material of inserts is that the bamboo charcoal raw material sources is in mao bamboon with the electric bamboo, green bamboo, cizu or other bamboo kind, bamboo was calcined in 750～1200 ℃ high temperature after 5～20 hours becomes bamboo charcoal, bamboo charcoal is worn into 50～300 purpose bamboo charcoal particles in ball mill, the bamboo charcoal particle specific insulation is controlled at 0.1～100 Ω cm, get percentage by weight and be 10～70 bamboo charcoal particle, water disperses, mix with the organic or inorganic adhesive of its surplus, the adhesive of organic class has resinae and plastics class, the adhesive of mineral-type has cement and gypsum, and mixed composite material prepared routinely becomes heating face.
When adhesive is resinae, when mixing, add percentage by weight again and be 0.1～1 carbon black disperser and percentage by weight and be 0.1～1 coupling agent.
When adhesive is the plastics time-like, when mixing, add percentage by weight again and be 0.1～0.5 coupling agent.
When adhesive is inorganic material, when mixing, add percentage by weight again and be 0.1～0.5 foam inhibitor and defoamer.
The invention has the beneficial effects as follows: 1) the whole surface with the electric heating device of the present invention preparation all becomes heating face and radiating surface, thereby heating evenly helps heat transferred, evacuation, can not form localized hyperthermia; 2) heating resistor of exothermic material is whole surface channel, and current density is little, and human body is had no harm, and is safe in utilization, is specially adapted to family's heating and heating; 3) heat efficiency height of exothermic material can reach 98%, is a kind of advanced person's energy-saving material; 4) exothermic material has the advantage of flexibility, wide adaptability, can be according to caloric value and specification requirement, the size of conduction content of charcoal and adhesive in the control exothermic material and be prepared into the electric heater of various different resistance values and heating surface (area) (HS is to satisfy the demand of various objectives; 5) exothermic material can be a kind of electrically-conducting paint, forms different shape so can be coated in object surface, also can be processed into flat board, possesses good processing technology.
Embodiment
The present invention be a kind of be the planar exothermic material of inserts with the electric bamboo, it is to be conducting medium with the electric bamboo particle that this material is mainly formed, with the organic or inorganic adhesive is matrix, and wherein: the percentage by weight of bamboo charcoal particle is 10～70, and surplus is the organic or inorganic adhesive.
Described adhesive can be a resinae, comprises phenolic resins, acrylic resin, alkyd resins, and what be composited with various types of resins is a kind of electrically-conducting paint.
Described adhesive can be the plastics class, comprises ABS, PVC plastics, and what be composited with plastics is a kind of conductive plastics.
Described adhesive can also be the material of mineral-type, and as cement, gypsum, what be composited with inorganic adhesive is a kind of conductive sheet metal.
Bamboo charcoal particle specific insulation as conducting medium is 0.1～100 Ω cm, and the bamboo charcoal particle degree is 50～300 orders.
The present invention is a kind of to be that the preparation method of the planar exothermic material of inserts is with the electric bamboo: the bamboo charcoal raw material sources is in mao bamboon, green bamboo, cizu or other bamboo kind, bamboo was calcined in 750～1200 ℃ high temperature after 5～20 hours becomes bamboo charcoal, bamboo charcoal is worn into 50～300 purpose bamboo charcoal particles in ball mill, the bamboo charcoal particle specific insulation is controlled at 0.1～100 Ω cm, get percentage by weight and be 10～70 bamboo charcoal particle, water disperses, mix with the organic or inorganic adhesive of its surplus, the adhesive of organic class has resinae and plastics class, the adhesive of mineral-type has cement and gypsum, and mixed composite material prepared routinely becomes heating face.
When adopting the adhesive of resinae, also can add percentage by weight and be 0.1～1 carbon black disperser in prescription: LD-28 (purchasing in Yangzhou Lida Resin Co., Ltd.) and percentage by weight are 0.1～1 coupling agent: silane coupler KH550 (purchase in the Nanjing Xiang and fly chemistry institute).
When adopting plastics class adhesive, in prescription, also can add percentage by weight and be 0.1～0.5 coupling agent: titanate coupling agent NXT311 (purchase in the Nanjing Xiang and fly chemistry institute).
When adopting the mineral-type adhesive, in prescription, also can add percentage by weight and be 0.1～0.5 foam inhibitor and defoamer: tributyl phosphate defoamer (market is purchased).
Be concrete two examples implementing below:
1, bamboo charcoal is a conductive phase, is the planar conductive exothermal coating of adhesive with the alkyd resins:
Choose common mao bamboon, be heated to 800 ℃ of high-temperature calcinations and become bamboo charcoal in the resistance-type heating furnace, stopped 8 hours, the cooling back is taken out and is pulverized in ball mill, sieves out 200 order particles, by the bamboo charcoal of quality than weighing 60%.With the market purchasing alkyd varnish is the substrate adhesive material, adds 0.5% carbon black disperser: LD-28 and 0.5% silane coupler: KH550, and an amount of diluent, brushing is on the PLASTIC LAMINATED surface after mixing.For increasing the uniformity of conduction, can add that copper mesh is as electrode at the two ends of plate.
2, bamboo charcoal is a conductive phase, is the planar exothermic material of adhesive with cement:
Choose common mao bamboon, be heated to 800 ℃ of high-temperature calcinations and become bamboo charcoal in the resistance-type heating furnace, stopped 8 hours, the cooling back is taken out and is pulverized in ball mill, sieves out 200 order particles, by the bamboo charcoal of quality than weighing 50%.With cement is the substrate adhesive material, adds 0.1% foam inhibitor and defoamer: tributyl phosphate, water disperses, and makes the electroconductive cement plate by the preparation method of cement plate.For increasing the uniformity of conduction, can add that copper mesh is as electrode at the two ends of plate.
Claims (10)
1, a kind of is the planar exothermic material of inserts with the electric bamboo, it is characterized in that: it is to be conducting medium with the electric bamboo particle that this material is mainly formed, with the organic or inorganic adhesive is matrix, and wherein: the percentage by weight of bamboo charcoal particle is 10～70, and surplus is the organic or inorganic adhesive.
2, according to claim 1 a kind of be the planar exothermic material of inserts with the electric bamboo, it is characterized in that: described adhesive is phenolic resins, acrylic resin or alkyd resins.
3, according to claim 1 a kind of be the planar exothermic material of inserts with the electric bamboo, it is characterized in that: described adhesive is ABS or PVC plastics.
4, according to claim 1 a kind of be the planar exothermic material of inserts with the electric bamboo, it is characterized in that: described adhesive is cement or gypsum.
5, according to claim 2 a kind of be the planar exothermic material of inserts with the electric bamboo, it is characterized in that: 0.1～1% the coupling agent that in described resinae adhesive, also can add weight and be 0.1～1% carbon black disperser of resinae adhesive and weight and be the resinae adhesive.
6, according to claim 4 a kind of be the planar exothermic material of inserts with the electric bamboo, it is characterized in that: 0.1～0.5% the foam inhibitor or the defoamer that in described inorganic bond, also can add weight and be inorganic bond.
7, a kind of is the preparation method of the planar exothermic material of inserts with the electric bamboo, it is characterized in that: the bamboo charcoal raw material sources is in mao bamboon, green bamboo, cizu or other bamboo kind, bamboo was calcined in 750～1200 ℃ high temperature after 5～20 hours becomes bamboo charcoal, bamboo charcoal is worn into 50～300 purpose bamboo charcoal particles in ball mill, the bamboo charcoal particle specific insulation is controlled at 0.1～100 Ω cm, get percentage by weight and be 10～70 bamboo charcoal particle, water disperses, mix with the organic or inorganic adhesive of its surplus, the adhesive of organic class is resinae or plastics class, the adhesive of mineral-type is cement or gypsum, and mixed composite material prepared routinely becomes heating face.
8, according to claim 7 a kind of be the preparation method of the planar exothermic material of inserts with the electric bamboo, it is characterized in that: when adhesive is resinae, when mixing, add weight again and be 0.1～1% carbon black disperser of resinae adhesive and weight and be 0.1～1% coupling agent of resinae adhesive.
9, according to claim 7 a kind of be the preparation method of the planar exothermic material of inserts with the electric bamboo, it is characterized in that: when adhesive is the plastics time-like, when mixing, add weight again and be 0.1～0.5% coupling agent of plastics class adhesive.
10, according to claim 7 a kind of be the preparation method of the planar exothermic material of inserts with the electric bamboo, it is characterized in that: when adhesive is inorganic material, when mixing, add weight again and be 0.1～0.5% foam inhibitor or defoamer of inorganic bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100990116A CN100452930C (en) | 2004-12-22 | 2004-12-22 | Face shaped exothermic material with electric bamboo as packing material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100990116A CN100452930C (en) | 2004-12-22 | 2004-12-22 | Face shaped exothermic material with electric bamboo as packing material and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1662104A CN1662104A (en) | 2005-08-31 |
| CN100452930C true CN100452930C (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100990116A Expired - Fee Related CN100452930C (en) | 2004-12-22 | 2004-12-22 | Face shaped exothermic material with electric bamboo as packing material and preparation method |
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| Country | Link |
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| CN (1) | CN100452930C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4756695B2 (en) * | 2006-02-20 | 2011-08-24 | コバレントマテリアル株式会社 | Sheet heater |
| CN109233141A (en) * | 2018-07-20 | 2019-01-18 | 浙江农林大学 | A kind of manufacturing process of high shielding charcoal mould plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443036A (en) * | 2003-03-25 | 2003-09-17 | 浙江林学院 | Electro magnetic shielding carbon base plate and its manufacturing method |
| CN1485400A (en) * | 2002-09-29 | 2004-03-31 | 娟 周 | Process for preparing electric bamboo charcoal |
-
2004
- 2004-12-22 CN CNB2004100990116A patent/CN100452930C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485400A (en) * | 2002-09-29 | 2004-03-31 | 娟 周 | Process for preparing electric bamboo charcoal |
| CN1443036A (en) * | 2003-03-25 | 2003-09-17 | 浙江林学院 | Electro magnetic shielding carbon base plate and its manufacturing method |
Non-Patent Citations (2)
| Title |
|---|
| 竹炭导电率及高导电率竹炭制备工艺研究. 邵千钧，徐群芳，范志伟，张文标.林产化学与工业，第22卷第2期. 2002 |
| 竹炭导电率及高导电率竹炭制备工艺研究. 邵千钧，徐群芳，范志伟，张文标.林产化学与工业，第22卷第2期. 2002 * |
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| Publication number | Publication date |
|---|---|
| CN1662104A (en) | 2005-08-31 |
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