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Bamboo charcoal-based far infrared composite material and method for preparing same

A composite material and far-infrared technology, applied in the field of far-infrared composite materials, can solve the problems of complex components, poor repeatability and performance stability of far-infrared ceramics, and many systems, and achieve simple components, excellent far-infrared emission performance, The effect of simple production process

Inactive Publication Date: 2010-02-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outstanding advantage of this far-infrared ceramic material is that it has infrared radiation characteristics similar to a black body, and has a high emissivity in the entire high-energy 2-25 μm band, but usually uses relatively expensive chemical raw materials and rare earth materials. Oxide, and because of many systems and complex components, the far-infrared radiation effect of a specific system is often strongly dependent on the source of raw materials and processes, resulting in poor repeatability and performance stability of far-infrared ceramics, which limits its use to a certain extent. Applications in some fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1. A preparation method of bamboo charcoal-based far-infrared composite material, followed by the following steps:

[0023] 1). Use the following weight percentages as raw materials:

[0024] 95% bamboo charcoal, 3.5% tourmaline, 1% clay and 0.5% medical stone;

[0025] 2) Put the above raw materials into deionized water, the weight ratio of the raw materials to the deionized water is 3:7; then add 6% of the total weight of the raw materials polyvinyl alcohol, ball mill for 24 hours to make it uniform;

[0026] 3). The mixture obtained in step 2) is subjected to high pressure molding under a pressure of 10 MPa; then it is placed in a vacuum graphite sintering furnace and calcined in a nitrogen atmosphere at a calcination temperature of 500°C and a calcination time of 5 hours;

[0027] 4). The calcined product obtained in step 3) is first cooled to normal temperature, and then polished and cut to form a bamboo charcoal-based far-infrared composite material.

[0028] The bam...

Embodiment 2

[0029] Example 2. A preparation method of bamboo charcoal-based far-infrared composite material, followed by the following steps:

[0030] 1). Use the following weight percentages as raw materials:

[0031] 50% bamboo charcoal, 20% tourmaline, 10% clay and 20% medical stone;

[0032] 2) Put the above-mentioned raw materials into deionized water, the weight ratio of raw materials to deionized water is 3:4; then add 0.5% of the total weight of the raw materials polyvinyl alcohol, ball mill for 48 hours to make it uniform;

[0033] 3). The mixture obtained in step 2) is subjected to high-pressure molding under a pressure of 100 MPa; then it is placed in a vacuum graphite sintering furnace and calcined in a nitrogen atmosphere at a calcination temperature of 2000°C and a calcination time of 1 hour;

[0034] 4). The calcined product obtained in step 3) is first cooled to normal temperature, and then polished and cut to form a bamboo charcoal-based far-infrared composite material.

[0035] The...

Embodiment 3

[0036] Embodiment 3. A preparation method of bamboo charcoal-based far-infrared composite material, followed by the following steps:

[0037] 1). Use the following weight percentages as raw materials:

[0038] 60% bamboo charcoal, 30% tourmaline, 5% clay and 5% medical stone;

[0039] 2) Put the above raw materials into deionized water, the weight ratio of the raw materials to the deionized water is 3:2; then add 4% of the total weight of the raw materials polyvinyl alcohol, and ball mill for 35 hours to make it uniform;

[0040] 3). The mixture obtained in step 2) is subjected to high-pressure molding under a pressure of 50 MPa; then it is placed in a vacuum graphite sintering furnace and calcined in a nitrogen atmosphere at a calcination temperature of 1000°C and a calcination time of 2 hours;

[0041] 4). The calcined product obtained in step 3) is first cooled to normal temperature, and then polished and cut to form a bamboo charcoal-based far-infrared composite material.

[0042] Th...

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Abstract

The invention discloses a preparation method for charcoal-based far-infrared composite materials, comprising the following steps: (1), the following components are taken as raw materials based on weight percentage: 50%-95% of charcoal, 0.5%-30% of tourmaline, 1-10% of clay and 0.5-20% of maifan stone; (2), all the materials are put into deionized water, then binder is added to the water for ball-mill mixing; (3), the mixture obtained from the step (2) goes through high pressure forming and is then put into a vacuum graphite sintering furnace and calcined in a protective atmosphere of nitrogen;(4), the calcined product obtained from the step (3) is cooled to room temperature to get the charcoal-based far-infrared composite material. The invention also discloses the charcoal-based far-infrared composite material prepared through the method. The charcoal-based far-infrared composite material of the invention has high far-infrared emissivity and is environmental-friendly and healthy.

Description

Technical field [0001] The invention relates to a far-infrared composite material, particularly a far-infrared composite material using bamboo charcoal as a matrix. Background technique [0002] Far-infrared generally refers to electromagnetic waves with a wavelength in the range of 4 to 1000 μm. It has the following characteristics: (1) It has a strong radiation ability and can directly heat the target without heating the gas in the gap; (2) Far-infrared can be combined with Absorbed by various objects with the same wavelength range, producing resonance effect and warming effect; (3) Far infrared can penetrate into the human skin, and then penetrate deep into the cell tissue through medium conduction and blood circulation heat; (4) Far infrared The frequency in the 4-16μm wavelength band is the same as the movement frequency of water molecules in biological cells and is easily absorbed, thereby radiating heat from the inside to the outside to activate the cell tissue. [0003] Fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B32/00
Inventor 郭兴忠张玲洁杨辉陈文照
Owner ZHEJIANG UNIV
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