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Microwave heating element and its microwave-absorbing and heat-generating composite material and preparation method thereof

A composite material and heating element technology, applied in chemical instruments and methods, synthetic resin layered products, sustainable manufacturing/processing, etc., can solve the problems of low heating efficiency, ignition, and difficult control, etc., to achieve improved heating efficiency, Good taste and even heating effect

Inactive Publication Date: 2016-08-03
平田精密器材(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a kind of aluminum foil that can wrap all the food, but it will heat up too quickly in the microwave oven, and it is easy to burn or catch fire. It is extremely difficult to control, and the aluminum foil absorbs and reflects all the microwaves. External heat transfer in, heating efficiency is low

Method used

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  • Microwave heating element and its microwave-absorbing and heat-generating composite material and preparation method thereof
  • Microwave heating element and its microwave-absorbing and heat-generating composite material and preparation method thereof
  • Microwave heating element and its microwave-absorbing and heat-generating composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] image 3 It is a schematic diagram of the cross-sectional structure of the microwave heating element of the present invention, such as image 3 As shown, the microwave heating element of the present invention is composed of a heating layer 5 and a heat insulating layer 6. The heating layer is based on food-grade silica gel, mixed with appropriate proportions of carbon black, ferric oxide, and ferric oxide, and added with a vulcanizing agent. , and then put the mixed rubber into the mold for molding, and then put the formed heat-generating layer into another mold and form a whole together with the heat-insulating layer made of food-grade silicone.

[0028] The preferred heating layer in this embodiment is a wave-absorbing and heat-generating composite material, which is made from the following raw materials in parts by weight: 56.7 parts of silica gel, 5.1 parts of carbon black, 28.8 parts of ferric oxide, 28.8 parts of ferric oxide 8.2 parts, 1.2 parts of vulcanizing a...

Embodiment 2-7

[0037] Example 2-7 The formula of the microwave heating element is as follows (note: each raw material is by weight)

[0038]

[0039]

[0040] The vulcanizing agent of embodiment 1-7 all selects 2,5-dimethyl-2,5-bis(t-butylperoxy)hexane.

Embodiment 2

[0041] Embodiment 2 Microwave heating element preparation method is as follows:

[0042] (1) Preparation of heating layer: First, add silica gel into the mill, and then add carbon black, ferric oxide, ferric oxide, and vulcanizing agent after wrapping the rolls, and then mix evenly and then release the sheet to obtain the absorbing layer as the heating layer. Wave heat generating composite materials;

[0043] (2) Preparation of heat-insulating layer: add silica gel in the mill, add vulcanizing agent after wrapping the roll, mix well and release the sheet to obtain the material of the heat-insulating layer;

[0044] (3) Put the wave-absorbing and heat-generating material in step (1) into the mold and form it under the conditions of 170±10°C, 15 minutes, and a pressure of 10MPA;

[0045] (4) Put the wave-absorbing heat-generating body formed in step (3) into another mold, and then put the material in step (2), and shape it under the conditions of 170±10°C, time 12 minutes, and ...

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Abstract

The invention relates to a high-molecular composite material, concretely a microwave heat-generating body, a wave absorption and heat generation composite material and a preparation method. The wave absorption and heat generation composite material is prepared by the following raw materials by weight: 50-70 parts of silica gel, 2-10 parts of carbon black, 10-35 parts of ferriferous oxide and 0.5-2 parts of vulcanizing agent. The microwave heat-generating body provided in the invention uses the wave absorption and heat generation composite material as a heating layer. By formula adjustment, the material not only can rapidly self-heat, but also can make proper amount of microwave to penetrate food, to internally heat food, which raises heating efficiency and makes mouthfeel better. A thermal insulation layer is made of a material with low heating efficiency. On one hand, the material does not absorb microwave, and energy is saved; and on the other hand, it makes safer to take food out of a microwave oven because of low temperature.

Description

technical field [0001] The invention relates to polymer composite materials, in particular to a microwave heating element, its microwave-absorbing and heat-generating composite material and a preparation method thereof. Background technique [0002] A microwave oven is a device that uses electric current to generate microwaves and heat food with microwaves. After using microwaves to heat food, the temperature inside the food is higher than the outside, and the thicker the food, the more obvious this phenomenon. This food tends to dry out and taste bad. Existing metal bakeware such as figure 1 Shown is a metal baking pan coated with a Teflon coating 1 inside and a microwave absorbing material coating 2 of a microwave-absorbing and heating material outside. The market as a whole reflects a high non-performing rate, and consumers have resistance to Teflon coating. There is another such as figure 2 The middle layer shown is the microwave-absorbing heating layer 3, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K13/02C08K3/04C08K3/22C08K3/00B32B27/06B32B27/18B32B27/28B32B37/06B32B37/10
CPCY02P20/10
Inventor 周亮杜洪涛刘发坤
Owner 平田精密器材(深圳)有限公司
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