Preparation method of novel composite flat plate electric heating film

An electric heating film and flat plate technology, applied in electric heating devices, ohmic resistance heating, ohmic resistance heating parts, etc., can solve the problems of poor environmental stability of metal wire electric heating film and easy oxidation, and harsh production environment of tin oxide electric heating film, etc. The thickness is easy to control, the bonding force is enhanced, and the power can be adjusted.

Inactive Publication Date: 2019-06-07
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of poor environmental stability of metal wire electric heating film and easy oxidatio

Method used

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  • Preparation method of novel composite flat plate electric heating film
  • Preparation method of novel composite flat plate electric heating film
  • Preparation method of novel composite flat plate electric heating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: template method prepares the conductive film of silver nanoparticle

[0035] Step 1, disperse commercially available silver nanoparticles in deionized water to form 0.01 mg.mL -1solution as a precursor solution; Step 2, dissolving acrylic resin in a diluent to prepare a 0.4g / mL template; Step 3, dripping the template prepared in Step 2 onto the quartz substrate, and using a rotary The coating method is applied evenly, and then dried in the air to naturally form a cracked template network; step 4, the precursor liquid is added to the substrate on which the template has been formed, and the spin coating method is used to coat evenly, and an oven at a certain temperature Dry in medium, and clean the template agent with chloroform; step 5, glue copper electrode strips on both ends of the prepared electric heating film semi-finished product with silver glue to form an electric heating film device.

[0036] The conductive film of the prepared silver nanoparticl...

Embodiment 2

[0037] Embodiment 2: F, Sb-doped tin oxide film prepared by ultrasonic spray pyrolysis

[0038] Step 1, monobutyltin trichloride (MBTC), SbCl 3 and NH 4 F is used as a precursor, dissolved in a solvent in which ethanol and water are configured in proportion, as a precursor solution; step 2, depositing the precursor solution on the substrate by ultrasonic spray pyrolysis to form a tin oxide-based film, and finally performing heat treatment; step 3. Glue the two ends of the prepared electrothermal film semi-finished product to copper electrode strips with silver glue to form an electrothermal film device.

[0039] Through the doping ratio of F and Sb, the total doping ratio is controlled between 2% and 15%, and its square resistance changes between 60-300Ω / sq. As the doping ratio increases, the square resistance first decreases and then get bigger. Driven by a voltage of 6V, the highest stable temperature it can achieve is 56°C, and the thermal response time is 40 seconds. P...

Embodiment 3

[0040] Example 3: Preparation of double-layer composite electrothermal film

[0041] Step 1, monobutyltin trichloride (MBTC), SbCl 3 and NH 4 F is used as a precursor, dissolved in a solvent of ethanol and water in proportion, as precursor solution 1; in step 2, commercially available silver nanoparticles are dispersed in deionized water to form 0.01 mg.mL -1 solution as the precursor solution 2; step 3, dissolving the acrylic resin in the diluent to prepare a template agent of 0.4g / mL; step 4, dripping the template agent prepared in step 3 onto the quartz substrate, and using Apply evenly by spin coating, and then dry in the air to naturally form a chapped template network; step 5, add the precursor solution 2 to the substrate on which the template has been formed, and use the spin coating method to coat evenly, and at a certain temperature Dry in an oven, and clean the template agent with chloroform; step 6, deposit the precursor solution 1 on the substrate by ultrasonic s...

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Abstract

The invention discloses a preparation method of a novel composite flat plate electric heating film. The method comprises the steps of dissolving butyltin trichloride (MBTC), SbCl3 and NH4F which are used as a precursor in a solvent prepared from ethyl alcohol and water according to a proportion so as to use as a first precursor liquid; dispersing silver nanoparticle in deionized water to use as asecond precursor liquid; preparing acrylic resin to form a template agent, dropwise adding the template agent onto a quartz substrate, and drying to form a chapped template network; dropwise adding and spin-coating the second precursor liquid onto a substrate for forming a template, and performing annealing after drying; depositing the first precursor liquid onto the substrate and performing thermal processing by a method of ultrasonic spray pyrolysis; and fabricating an electrode to from an electric heating film device. The method has the advantages that the novel composite flat plate electric heating film has relatively high oxidization-resistant performance by a tin oxide thin film at the outermost layer, and stable film layer resistance during the application process can be maintained;the silver nanoparticle has excellent electric and heat conversion efficiency, a relatively high temperature can be achieved under a low voltage; and meanwhile, the novel composite flat plate electric heating film has excellent light transmittance with the adoption of the quartz substrate, and the light transmittance reaches 80% or above.

Description

technical field [0001] The invention belongs to the field of heating materials, and in particular relates to a preparation method of a novel composite flexible electric heating film. The conductive network layer composed of silver nanoparticles and the SnO doped with Sb and F are mainly prepared by template spin coating method and ultrasonic spray pyrolysis method. 2 A double-layer composite electric heating film composed of a base film layer. Background technique [0002] In the field of electric heating, there are three types of resistance heating, electromagnetic induction heating and microwave heating, among which resistance heating is the most widely used. There are various heating elements in resistance heating, such as electric heating wire, electric heating tube, electric heating plate, quartz tube, PTC electric heating element, etc. Except for PTC electric heating element, other heating elements use electric heating wire as their internal heat source. The method h...

Claims

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Application Information

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IPC IPC(8): H05B3/20H05B3/12H05B3/03B05D5/12
Inventor 姜银珠杜泉龙
Owner ZHEJIANG UNIV
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