WO2012148123A2 - Composition d'élément de chauffage plan présentant une résistance en surface de valeur spécifique, et élément de chauffage plan utilisant ladite composition - Google Patents

Composition d'élément de chauffage plan présentant une résistance en surface de valeur spécifique, et élément de chauffage plan utilisant ladite composition Download PDF

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Publication number
WO2012148123A2
WO2012148123A2 PCT/KR2012/002976 KR2012002976W WO2012148123A2 WO 2012148123 A2 WO2012148123 A2 WO 2012148123A2 KR 2012002976 W KR2012002976 W KR 2012002976W WO 2012148123 A2 WO2012148123 A2 WO 2012148123A2
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WO
WIPO (PCT)
Prior art keywords
heating element
planar heating
composition
temperature
component
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PCT/KR2012/002976
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English (en)
Korean (ko)
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WO2012148123A3 (fr
Inventor
김병철
이고르 유리예비치쉘레호프
니콜라이 아카디예비치이바노프
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(주)피엔유에코에너지
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Publication of WO2012148123A2 publication Critical patent/WO2012148123A2/fr
Publication of WO2012148123A3 publication Critical patent/WO2012148123A3/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings

Definitions

  • the present invention relates to a planar heating element composition and a method of manufacturing a planar heating element using the same, more specifically, a planar heating element composition having a heat generating function due to the supply of power, controlled to a specific temperature and having a specific value of sheet resistance and a planar shape using the same It relates to a method for producing a heating element.
  • planar heating element which is recently emerging, is a product which reduces power by 20 to 40% than the electric heating element that is generally used, and is expected to have a large electric energy saving and economic ripple effect.
  • the planar heating element is easy to control the temperature by using the radiant heat generated by the electric current, it does not pollute the air has advantages in terms of hygiene and noise has been used for bedding, such as heating mats and pads.
  • it is widely used for heating of floors of houses, industrial heating of offices and workplaces, heating devices in various industrial fields such as painting and drying, vinyl houses, barns, agricultural equipment, automobile back mirrors, freezing prevention devices for parking lots, cold protection equipment for leisure, home appliances, etc. It is used.
  • planar heating element has been widely used in recent years, replacing much of the heating in Europe. It is a new material that can be applied to industrial dryers, agricultural product dryers, medical auxiliary products, and construction subsidiary materials in addition to the housing sector. It is appreciated as a possible product.
  • the planar heating element is mainly composed of a metal heating element etched a thin metal plate such as iron, nickel, chromium, platinum, and non-metal heating element such as silicon carbide, zirconium, carbon.
  • a metal heating element etched a thin metal plate such as iron, nickel, chromium, platinum, and non-metal heating element such as silicon carbide, zirconium, carbon.
  • Multilayer heating elements in the form of layered products with conductive layers on both sides insulated with insulating layers are well known. It also has a heat reflecting layer of metal or metal polymer film on one side of the surface of the heating element.
  • the conductive layer is made based on coal-fiber paper, and the insulating layers are known to be made of thermoplastic polymer film material.
  • a conductive layer of element carbon, graphite, and modified phenolformaldehyde resin is formed to form a resistance element in a manner that is infiltrated with the insulation in the insulating substrate. It is coated with an absorbent layer of epoxy or epoxyphenol or phenolformaldehyde binder to form an insulating coating and all layers are pressurized at the appropriate temperature, time and pressure.
  • the resistive element is separated together with similar resistive elements before application of the resistive coating thereon and in a separate form at 130-140 ° C. Heat-cure (cure) for 10-12 minutes per millimeter of lamination thickness.
  • planar heating element was not easy to control the temperature accurately, and even after rising to a constant boiling point temperature, the same power supply was continuously maintained at the boiling temperature, resulting in excessive energy loss. Therefore, there is a need for a technology that enables easy control of a specific temperature range while not only applying a specific electric power among the planar heating elements, but also using power efficiency.
  • the present invention is to solve the problems of the prior art, an object of the present invention is to provide a planar heating element composition capable of precise temperature control in a specific temperature range according to the composition ratio of the material and less heat loss to reduce the power usage.
  • a composition comprising (A) an insulating binder component, (B) a resistance component, and (C) a temperature control component,
  • the sheet resistance of the composition is 0.09 ⁇ 0.9 ⁇ / square, the (C) the surface heating element composition characterized in that the dispersion value of the temperature control component particles is 0.1 ⁇ 1.0 ⁇ m.
  • planar heating element comprising a; electrode formed on the heating layer.
  • planar heating element composition according to the present invention can provide a planar heating element capable of precise temperature control in a specific temperature range according to the composition ratio of the material, and self-control of power and temperature over time to ensure stability.
  • planar heating element of the present invention can be manufactured in a form that is applied to the substrate, the structure is very simple and excellent heat generation compared to the existing heating element products, the efficiency of the heat dissipated to the surroundings is excellent.
  • Figure 1 shows the change in content of the resistance heating element (for floor heating) according to embodiments 1 to 10 of the present invention at ambient temperature.
  • Figure 2 shows the change in the content of the resistance heating element (for wall heating) according to embodiments 1 to 10 of the present invention at ambient temperature.
  • Figure 3 shows the change in content of the resistance heating element (for ceiling heating) according to embodiments 1 to 10 of the present invention at ambient temperature.
  • Figure 4 shows the change in content of the resistance heating element (for floor heating) according to Comparative Example 1 at ambient temperature.
  • Figure 5 shows the heat release curves (I-normal heat release, II-superheat heat release) of the heating elements according to embodiments 1 to 10 of the invention at ambient temperature.
  • the present invention provides a composition comprising (A) an insulating binder component, (B) a resistance component, and (C) a temperature control component, wherein the sheet resistance of the composition is 0.09 to 0.9? / Square, It provides a planar heating element composition having a dispersion value of 0.1 ⁇ 1.0 ⁇ m.
  • the (A) insulating binder component can be used for a conventional planar heating element, for example, phenol-based, amide-based, polyester-based, epoxy-based, polyvinyl alcohol-based, polyvinyl butyral-based, polyimide And polyetherimide, polycarbonate, polysulfone, polyether, polyether ketone, urethane, rubber chloride, acrylic, vinyl chloride, nitrocellulose, and acetylcellulose.
  • fluoropolymers examples include polytetrafluoroethylene (PTFE), tetrafluoroethylene hexafluoropropylene copolymer (FEP), tetrafluoroethylene perfluoroalkylvinylether copolymer (PFA, non-limiting examples): Tetrafluoroethylene perfluoromethylvinylether copolymer, tetrafluoroethylene perfluoroethylvinylether copolymer), tetrafluoroethyleneperfluoropropylvinylether copolymer), ethylene tetrafluoroethylene copolymer (ETFE) , Ethylene chlorotrifluoroethylene copolymer (ECTFE) and polyvinylidene fluoride (PVDF) and the like can be optionally used.
  • PTFE polytetrafluoroethylene
  • FEP tetrafluoroethylene hexafluoropropylene copolymer
  • PFA
  • the content of the insulating binder component is preferably 5 to 28% by weight, and the content of the insulating binder component is less than 5% by weight, which is not preferable because the bonding strength of the composition is lowered. It is not preferable because the composition content of the composition is small and the exothermic performance is lowered.
  • the planar heating composition of the present invention represents a complex and structured system with certain rheological properties. If there is an external force applied to a certain rheological system, the correlation between stress and elasticity is determined at that point.
  • An important rheological property of the elastic system is viscosity, the size of which can be determined by the nature and composition of the insulating binder.
  • the rubber roller speeds are different in the templated frame.
  • the characteristics of the insulating layer and the resistive layer depend on the fluidity of the paste and the magnitude of the reverse viscosity.
  • the characteristics of the dynamic loads vary with the expansion of the template mesh, the wear of the rollers and the external environmental factors.
  • the resistive composition is preferably a mixture of nickel and aluminum.
  • one or more calibration components selected from molybdenum (Mo), boron (B), and silicon (Si) may be further included.
  • the calibration component can be said to be a stabilizer in the form of a nanostructured powder to stabilize the parameters. It is preferable that the specific surface area of such a stabilizer is 200 m ⁇ 2> / g or less. At this time, the formation time of the structure is shortened, and the content used may be 0.4 to 0.6% by weight of the composition content. At this time, stability of change of temperature resistance coefficient does not change even after long-term use.
  • the content of the (B) resistance component is preferably 46 to 75% by weight.
  • the content of the resistive component is less than 46% by weight, it is not preferable to realize the exothermic performance of the heating element, and when it exceeds 75% by weight is not preferable because the stability of temperature control is lowered.
  • the content of the component for correcting this in the resistive component is preferably 1/10 to 1/100 at%.
  • Calibration here can be understood as an additive added to further improve the effect of the resistive component.
  • the resistance component determines the base level of the relative resistance and the temperature resistance coefficient, and the calibration components of the molybdenum and boron additives change the relative resistance value.
  • the change in the temperature resistance coefficient is controlled by changing the dispersion value of the particle component from 0.5 to 5.0 mu m, which is determined by the preparation time in the ball mill. It is controlled by PSK-12, an instrument that measures relative surfaces by air permeation.
  • (C) plays a role in controlling the planar heating element up to 30 ⁇ 450 °C in the state energized through the temperature control component.
  • a specific substance should be included in an appropriate amount to prevent overheating of the heating element and to contribute to proper power consumption.
  • the temperature control component is preferably at least one oxide selected from the group consisting of silicon oxide, aluminum oxide, boron oxide, barium oxide.
  • the temperature controlling component (C) may use a lead-free glass powder mixture, and may include, for example, SiO 2 -BaO-B 2 O 3 -Al 2 O 3 .
  • the content of the regulative composition is preferably 10 to 40% by weight. If the content of the temperature control component is less than 10% by weight, it is not sufficient to realize the function of adjusting to a specific temperature, and if it exceeds 40% by weight, the content of other components such as the resistance component is too small. Can not do it.
  • Temperature control components are produced in a closed space of planetary ball mills for 6 to 10 hours without the ingress of oxygen.
  • the sheet resistance of the temperature control component (C) is 0.09 to 0.9 ⁇ / square, and the dispersion value of the particles is 0.1 to 1.0 ⁇ m.
  • heating elements having various temperature resistance coefficients in a wide range of sheet resistance by changing the weight percentage of the total composition relative to the ratio of the remaining components.
  • the content of lead-free glass added to the control component determines the level at which it begins to affect the general properties of the heating element, the amount of which is determined empirically for each resistive component.
  • the planar heating element composition according to the present invention is alcohol, such as methyl alcohol, ethyl alcohol, isopropyl alcohol, butanol, benzene, xylene, texanol, ethylene glycol, butyl carbitol, ethyl cellosolve, glycerol, and dimethyl sulfoxide as organic solvents. It can be used individually or in mixture of 2 or more types chosen from a seed etc. In addition, aqueous (water) may be used as the solvent instead of the organic solvent.
  • planar heating element composition of the present invention may further include a dispersant.
  • the dispersant may use at least one selected from the group consisting of urethane, acrylic, phosphorus, organic acid salts and inorganic acid salts.
  • the planar heating composition according to the invention may further comprise a thickener.
  • the thickener is to increase the viscosity on the paste for the processability, such as coating properties in the manufacturing of the planar heating element, which is a crowd consisting of cellulose-based, polyacrylamide-based, polyurethane-based, polysaccharide-based and copolymers thereof You can use one or more selected from.
  • the cellulose-based may include methyl cellulose, hydroxy ethyl cellulose, hydroxy propyl cellulose, and the like, and the polyacrylamide-based polyacrylamide and copolymers thereof may be exemplified.
  • the polyurethane-based may include polyurethane, polyurethane-acryl, and a combination thereof.
  • the polysaccharide-based may include biopolymers such as wellan gum and curdlan.
  • the resin composition for high-temperature planar heating elements according to the present invention may be used by further adding a conventional antifoaming agent, leveling agent, antioxidant, and the like as necessary.
  • a hot plate, a heating film, a heating cable, a cooking heater, and the like can be manufactured, and in addition, various types of applications can be manufactured.
  • the planar heating element generates heat when a voltage is applied to the electrode.
  • a uniform heating temperature is distributed over the entire surface of the heating element, and resistance is constant, thereby generating a constant heating temperature. It is applicable to all industrial fields where heating element is used. In addition, it is more durable than conventional copper heating wire and carbon planar heating element.
  • planar heating element composition according to the present invention can be usefully used as a material of the heating element that generates heat by applying power.
  • the planar heating element composition according to the present invention may be prepared as a heating element of a plate-like sheet or a molded body having a three-dimensional shape, and preferably may be applied as a heating layer of the planar heating element according to the present invention described below.
  • Planar heating element according to the present invention is a substrate; An exothermic layer formed on the substrate using the planar heating element composition; And an electrode formed in the heating layer.
  • the planar heating element formed using the composition according to the present invention is characterized in that the temperature is controlled to a maximum of 30 ⁇ 450 °C in the energized state.
  • the heat capacity of the water supplies power similarly to the nonlinear curve. This can reduce the loss of the amount of power supplied by about 40% energy can be reduced by significantly reducing the heat loss compared to supplying the same amount of power until the water boils the conventional planar heating element products.
  • the planar heating element according to the present invention preferably has a sheet resistance of 0.09 to 1.9 ⁇ / square, and has a temperature resistance coefficient of 560 ⁇ 10. -6 To 40 ⁇ 10 -4 It is preferable that it is / degreeC.
  • This temperature resistance coefficient represents the resistance change in the resistor material as a function of temperature. While not necessarily a linear relationship, positive values refer to materials whose resistance properties increase or decrease in proportion to rising or falling temperatures, whereas negative values refer to materials whose resistance properties change in inverse proportion to temperature changes. Point to.
  • the method of manufacturing the planar heating element will be described in more detail.
  • the method of preparing a base material and the method of manufacturing the planar heating element may include: forming a paste by mixing a binder including an insulating binder, a resistance component, and a control component;
  • the paste may be applied to a substrate, and may be manufactured through a process including an electrode forming step of forming an electrode after the applying step.
  • the substrate is flexible, and may be selected from a synthetic resin film, a fiber sheet, or paper.
  • the synthetic resin film is PE (polyethylene), PP (polypropylene), PS (polystyrene), PC (polycarbonate), PA (polyamide), PET (polyethylene terephthalate), PU (polyurethane) or fluorine resin And a foamed sheet thereof (foamed PS sheet or the like).
  • the fiber sheet includes a woven fabric and a nonwoven fabric made from natural fibers or synthetic fibers.
  • the electrode may be made of a single metal or alloy selected from the group consisting of aluminum, silver, gold, iron, platinum, copper, and the like, and the electrode may be attached after being cut into a strip or by being cut to a predetermined width. Can be.
  • the electrode may be laminated on the heating layer (or deposited) or included in the heating layer.
  • the composite paste After the composite paste is applied, it is heat-treated in a conveyor furnace that emits infrared rays for 8 to 12 minutes at 130 to 160 ° C., and is then heat treated at 170 to 200 ° C. for 10 to 30 minutes. Conductive paths are then fabricated, and any known method can be used, including screen printing.
  • the heating elements are then coated with a polyethylene terephthalate film and bonded to each other by thermal compression.
  • the power supply to the heating element can be made in a mechanical manner, by peeling off the protective film at the location of the conductive passage.
  • the paste compositions prepared in Examples 1 to 10 were applied to polyethylene terephthalate, heat treated at 140 ° C. for 10 minutes in a conveyor furnace with infrared rays, and then heat treated at 180 ° C. for 20 minutes. Next, after the heat treatment, the electrode was brought into close contact with the screen printing method to prepare a planar heating element.
  • the dispersion degree of the temperature control component in the planar heating element is shown in Table 1 below.
  • Example 1 Dispersion of Temperature Control Components Example 1 0.2 Example 2 0.1 Example 3 0.5 Example 4 0.6 Example 5 0.4 Example 6 0.3 Example 7 0.5 Example 8 0.7 Example 9 0.6 Example 10 0.3 Comparative Example 1 1.5
  • Table 2 shows the maximum temperature, sheet resistance and temperature resistance coefficient of the planar heating element using Examples 1 to 10.
  • the heating element temperature was changed in the range of 52 to 67 ° C., and the specific resistance was 0.1. It was measured as ⁇ 0.8 ⁇ / square, and the resistance temperature coefficient was measured to be 65 ⁇ 10 ⁇ 5 to 98 ⁇ 10 ⁇ 5 .
  • 1 to 3 are graphs showing the change in the content of the resistance heating element according to Examples 1 to 10 measured at ambient temperature using a device for floor heating, wall heating, and ceiling heating, respectively. 1 to 3, it is possible to check the temperature change of the resistance heating element for each use.
  • Figure 4 shows the change in the content of the heating element according to Comparative Example 1 measured using a typical heater at ambient temperature.
  • Examples 1 to 10 and Comparative Example 1 exhibit similar temperature increasing behavior. In the case of Examples 1 to 10, the resistance increases with time, but the use of power is stopped. However, Comparative Example 1 shows a substantially constant resistance and power usage. Therefore, when the planar heating element composition according to the present invention reaches a constant temperature, the use of power due to the increase in resistance with time is stopped, and the power and temperature self-control over time due to the increase in the resistance value (material properties). -Regulation) is possible.
  • FIG. 5 shows heat release curves (I-normal heat release, II-superheat heat release) of heating elements according to Examples 1 to 10 of the present invention at ambient temperature
  • FIG. 6 shows Comparative Example 1 at ambient temperature.
  • the heat dissipation curve (I-normal heat dissipation, II-superheat heat dissipation) of the heating element is shown.
  • Examples 1 to 10 is a temperature control component is contained in the composition, the temperature increase is controlled at a constant temperature
  • Comparative Example 1 does not contain a temperature control component in the composition so that the temperature is continuous The phenomenon was increased. 5 and 6, it can be seen that the planar heating element composition according to the present invention can obtain a self-control effect of power and temperature.

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  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)

Abstract

La présente invention concerne une composition d'élément de chauffage plan, comprenant : (A) un composant liant isolant ; (B) un composant résistant ; et (C) un composant régulant la température. La résistance en surface de la composition est comprise entre 0,09 et 0,9 Ω/carré, et la variance du composant régulant la température (C) a une valeur comprise entre 0,1 et 1,0 μm. La composition d'élément de chauffage plan est caractérisée en ce qu'un élément de chauffage formé en utilisant la composition a sa température réglée à un maximum de 30 à 450 °C en état actif. La composition d'élément de chauffage plan selon la présente invention permet un réglage de température précis dans une zone de température spécifique selon le rapport de composition d'une substance, et permet une régulation autogène de la puissance électrique et de la température en fonction du temps, ce qui permet ainsi de fournir un élément de chauffage plan stable. En outre, l'élément de chauffage plan selon la présente invention peut être fabriqué sous une forme lui permettant d'être enduit sur un matériau de base, et s'avère ainsi de structure très simple ; il présente d'excellentes caractéristiques exothermiques tout en émettant moins de chaleur dans l'environnement par rapport à un élément de chauffage classique, offrant ainsi un excellent rendement.
PCT/KR2012/002976 2011-04-26 2012-04-19 Composition d'élément de chauffage plan présentant une résistance en surface de valeur spécifique, et élément de chauffage plan utilisant ladite composition WO2012148123A2 (fr)

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Application Number Priority Date Filing Date Title
KR10-2011-0038764 2011-04-26
KR1020110038764A KR20120121039A (ko) 2011-04-26 2011-04-26 면저항이 특정값을 갖는 면상발열체 조성물 및 이를 이용한 면상발열체

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WO2012148123A2 true WO2012148123A2 (fr) 2012-11-01
WO2012148123A3 WO2012148123A3 (fr) 2013-01-03

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910003685A (ko) * 1989-07-18 1991-02-28 이또오 구니지로 도전성(導電性)시트의 제조방법
KR20010022476A (ko) * 1999-06-09 2001-03-15 엔도 마사루 세라믹히터 및 그 제조방법 및 발열체용 도전 페이스트
KR200283267Y1 (ko) * 2002-04-09 2002-07-26 이건국 카본 필름으로 구성되는 면상 발열체
JP2004026517A (ja) * 2002-06-21 2004-01-29 Kanken Techno Co Ltd 炭化ケイ素系導電性焼結体およびその製造法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910003685A (ko) * 1989-07-18 1991-02-28 이또오 구니지로 도전성(導電性)시트의 제조방법
KR20010022476A (ko) * 1999-06-09 2001-03-15 엔도 마사루 세라믹히터 및 그 제조방법 및 발열체용 도전 페이스트
KR200283267Y1 (ko) * 2002-04-09 2002-07-26 이건국 카본 필름으로 구성되는 면상 발열체
JP2004026517A (ja) * 2002-06-21 2004-01-29 Kanken Techno Co Ltd 炭化ケイ素系導電性焼結体およびその製造法

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KR20120121039A (ko) 2012-11-05

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