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Method for preparing lightweight environment-friendly high-near infrared emissivity material and application thereof

An infrared emissivity and environment-friendly technology, applied in the direction of coating, etc., can solve the problems of affecting the grilling effect of high-firing tubes, not having infrared heating effect, and endangering food health, so as to improve the infrared grilling effect, the preparation method is simple and efficient, and the energy The effect of less consumption

Active Publication Date: 2018-09-04
GUANGDONG GALANZ GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to further improve the grilling effect of the built-in dry heating tube in the microwave oven, it is often chosen to spray a layer of high-temperature paint on the dry heating tube. However, most of the high-temperature coatings currently on the market do not have infrared heating effects. The coating only plays the role of anti-rust, which affects the grilling effect of the high-fired tube to a certain extent, and is prone to coating peeling off, and even some coating materials show strong wave absorption and endanger food healthy

Method used

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  • Method for preparing lightweight environment-friendly high-near infrared emissivity material and application thereof
  • Method for preparing lightweight environment-friendly high-near infrared emissivity material and application thereof
  • Method for preparing lightweight environment-friendly high-near infrared emissivity material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1, take 9g of spherical graphite, place in a 1000mL beaker, add 150mL of absolute ethanol solution, ultrasonically disperse for 30min, and obtain solution A for subsequent use;

[0029] Step 2, 25.64g Mg(NO 3 ) 2 ·6H 2 O and 37.51g Al(NO 3 ) 3 9H 2 O, add an appropriate amount of deionized water, place the solution in a water bath at 60°C and stir for 30 minutes to obtain solution B;

[0030] Step 3: Pour solution A into solution B, and continuously stir for 30 minutes, then adjust the temperature of the water bath to 80°C, adjust the pH value of the mixed solution to 3 with ammonia water (25wt%), and stir for 30 minutes to obtain solution C ;

[0031] Step 4, slowly add an appropriate amount of tetraethyl orthosilicate in solution C, wherein their molar ratio is n (正硅酸乙酯) :n (硝酸铝) =5:2; after adding tetraethyl orthosilicate, adjust the temperature of the water bath to 90°C, allow it to stir for 1h to obtain solution D, and pay attention to adding deionized...

Embodiment 2

[0039] Step 1, get the spherical graphite of 15g, place in the beaker of 1000mL, add the absolute ethanol solution of 200mL, ultrasonic dispersion 30min, obtain solution A for subsequent use;

[0040] Step 2, 38.64g Mg(NO 3 ) 2 ·6H 2 O and 37.51g Al(NO 3 ) 3 9H 2 O, add an appropriate amount of deionized water, place the solution in a water bath at 60°C and stir for 30 minutes to obtain solution B;

[0041] Step 3: Pour solution A into solution B, and continuously stir for 30 minutes, then adjust the temperature of the water bath to 80°C, adjust the pH value of the mixed solution to 4 with ammonia water (25wt%), and stir for 30 minutes to obtain solution C ;

[0042] Step 4, slowly add an appropriate amount of tetraethyl orthosilicate in solution C, wherein their molar ratio is n (正硅酸乙酯) :n (硝酸铝) =6:2; after adding tetraethyl orthosilicate, adjust the temperature of the water bath to 90°C, allow it to stir for 1h to obtain solution D, and pay attention to adding deioni...

Embodiment 3

[0050] Step 1, get the spherical graphite of 7g, be placed in the beaker of 1000mL, add 100mL absolute ethanol solution, ultrasonic dispersion 30min, obtain solution A for subsequent use;

[0051] Step 2, 25.64g Mg(NO 3 ) 2 ·6H 2 O and 37.51g Al(NO 3 ) 3 9H 2 O, add an appropriate amount of deionized water, place the solution in a water bath at 60°C and stir for 30 minutes to obtain solution B;

[0052] Step 3: Pour solution A into solution B, and continuously stir for 30 minutes, then adjust the temperature of the water bath to 80°C, adjust the pH value of the mixed solution to 3 with ammonia water (25wt%), and stir for 30 minutes to obtain solution C ;

[0053] Step 4, slowly add an appropriate amount of tetraethyl orthosilicate in solution C, wherein their molar ratio is n (正硅酸乙酯) :n (硝酸铝) =5.4:2; After adding tetraethyl orthosilicate, adjust the temperature of the water bath to 90°C, allow it to stir for 1h to obtain solution D, and pay attention to adding deionize...

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Abstract

The invention relates to a method for preparing a lightweight environment-friendly high-near infrared emissivity material and an application thereof. The method comprises the following steps: taking 7-15 g of spherical graphite, placing the spherical graphite in a 1000 mL of beaker, adding 100-200 mL of an absolute ethyl alcohol solution, and performing ultrasonic dispersion for 30 min to obtain asolution A for standby. The invention provides the preparation method of the lightweight environment-friendly high-near infrared emissivity material and an application of the lightweight environment-friendly high-near infrared emissivity material for a built-in dry burning tube of a microwave oven. The method is characterized in that 1) raw materials used in a material preparation process are silicate materials which belong to an environmental-protection type; 2) a microwave heating technology is employed for primary sintering, which has good dispersion effect for the finally-synthesized powder material; and 3) the finally-prepared powder material is the cavity structure powder material, the weight is light, and the material can be used for the dry burning tube.

Description

technical field [0001] The invention relates to the technical field of preparation and application of an infrared radiation material, in particular to the preparation of a high infrared emissivity material and its application in a microwave oven. Background technique [0002] Infrared radiation materials include low infrared emissivity materials, selective infrared radiation materials and high efficiency infrared radiation materials, including TiO 2 , SiO 2 , ZnO, cordierite, SiC, transition metal oxide composite materials, etc. can be used as infrared radiation materials, widely used in kilns, medical, military and other fields. [0003] At present, microwave ovens are gradually developing in the direction of multi-function and high quality. In consideration of bringing better cooking effects to consumers, many manufacturers choose to build dry-burning tubes in microwave ovens to increase the grilling function of microwave ovens for food. In order to further improve the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/00
CPCC09D1/00C09D5/00
Inventor 张顺梁兆邦
Owner GUANGDONG GALANZ GRP CO LTD
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