CN101157811A

CN101157811A - Paint for improving far-infrared heater radiation efficiency and method for manufacturing same

Info

Publication number: CN101157811A
Application number: CNA200710113479XA
Authority: CN
Inventors: 蒋瑞; 郭元林; 易介文; 窦锦浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2008-04-09

Abstract

The invention discloses a coating which can improve the thermal radiation efficiency of a far-infrared warmer and a preparation method thereof. The invention is made out of raw materials according to the following weight percentage,: 1.4 percent to 16 percent of metal oxide, 10 percent to 50 percent of potassium water glass, 5 percent to 20 percent of graphite, 1 percent to 5 percent of white carbon black, 2 percent to 10 percent of cellulose, 0.05 percent to 3 percent of H100 dispersant, 30 percent to 55 percent of water and 0.05 percent to 2 percent of HAS thickener. The preparation method is as follows: first, the cellulose is dissolved in water to be curing, while the potassium water glass is added into a kneading machine; and second, the graphite, the cellulose solution, the metal oxide and the white carbon black are added to be kneaded; third, the obtained solution is put into a dosing tank, the water is added into the tank to be stirred and dispersed by using a dispersion machine; fourth, the mixture is put into a grinding machine to be grinded into particles with a size of less than 10 micron; at last, the particles are put into a tempering tank, with the water, the H100 dispersant and the HAS thickener being added, dispersed and blended by using the dispersion machine, sieved and separately loaded to make the final product.

Description

A kind of coating and manufacture method thereof that improves far-infrared heater radiation efficiency

Technical field

The present invention relates to a kind of coating, particularly a kind of coating and manufacture method thereof that is coated in the warmer radiating surface of electrically heated carbon ceramics generation far infrared radiation.

Background technology

At present, the infrared rays of known 8 to 20 micron wavebands is referred to as " life light ", and it has stronger penetrativity, can arrive the degree of depth of subcutis 6cm.Carbon ceramics electrically heated far-infrared radiation warmer, can produce the far infrared rays of carbon ceramics pipe generation 8 to 20 micron wavebands of far-infrared radiation exactly by electrically heated, far infrared rays directly acts on human body and heated object, direct heating air and produce convection current not, thermosteresis is less relatively in the heat transfer process, pollution-free during operation, be that a kind of efficient is higher, the heating installation of health environment-friendly.

Carbon ceramics far-infrared radiation warmer of the prior art, be in metal shell, the radial lamella face is installed, the carbon ceramics heating tube, temperature sensor, thermal insulation layer etc., the radial lamella face is made of monolithic and polylith aluminium alloy radial lamella, the transverse section of aluminium alloy radial lamella is an isosceles triangle, in its leg-of-mutton bottom surface one also is that far infrared wave exposes on the plane to extraradial, be laid with the semicylinder of projection, make the thermal radiation of far infrared wave be fan shape to external irradiation, but because aluminium alloy itself is to ultrared reflectivity height, specific absorption is low, according to kirchhoff's radiation law, its specific absorption is low, and radiation is lower than also, and far infrared wave exposes to extraradial that often the receptivity to far infrared wave is strong inadequately on the plane, the part infrared wave are reflected on heating tube, make the heating tube temperature raise, and subwave generation interference, energy loss by radiation caused.

Summary of the invention

The objective of the invention is to want to overcome above-mentioned the deficiencies in the prior art, a kind of coating and manufacture method thereof are provided, this applying coating on the aluminium alloy radial lamella of carbon ceramics warmer, can effectively be improved radiating surface to ultrared specific absorption, improve the warmer electric conversion efficiency.

For realizing that the technical scheme that above-mentioned purpose of the present invention adopts is: a kind of coating that improves far-infrared heater radiation efficiency is characterized in that being made by following raw materials by weight percent: metal oxide 1.4-16%, potash water glass 10-50%, graphite 5-20%, white carbon black 1-5%, Mierocrystalline cellulose (2H) 2-10%, H100 dispersion agent 0.05-3%, water 30-55%, HAS thickening material 0.005-2%.

Most preferred embodiment of the present invention is that described metal oxide is: ferric oxide 0.2-8%, titanium oxide 1-5%, aluminum oxide 0.2-3%.

Production method of the present invention is as follows:

(1), earlier with cellulose dissolution in water, slaking is standby more than 24 hours;

(2), potash water glass is joined in the kneader, add graphite again, cellulose solution, metal oxide, white carbon black that slaking is good are mediated, and mediate 6-15 hour, make metal oxide, graphite, carbon black, potash water glass thorough mixing are even in vain;

(3), kneaded material is taken out, put in the dosing vessel, add entry, even with the dispersion machine dispersed with stirring;

(4), finely dispersed material put in the grinding machine further to grind disperses, reach fully below 10 microns until granularity, stop to grind, emit material and contain in container;

(5), above-mentioned ground material is put in the make-up tank, add entry, H100 dispersion agent, HAS thickening material, disperse allotment, sieve then and promptly get coating with dispersion machine;

(6), with the packing of gained coating.

Coating coating of the present invention on the aluminium alloy radial lamella of carbon ceramics warmer, can change the condition of surface of aluminium alloy radial lamella, improve radiating surface to ultrared specific absorption, that is to say and improved ultrared emissive power, the quantity of radiant energy of the far infrared wave that the carbon ceramics heating tube is produced rapidly by radiating surface to the heating space radiation, can reduce the radiating surface temperature of warmer, increase radiation length and heating spatial heat-up rate, thereby improved the warmer electric conversion efficiency, improved utilization of power efficient.

Embodiment

For describing the present invention in detail, the present invention is done further detailed description below in conjunction with specific embodiment.

Embodiment 1, percentage ratio takes by weighing raw material by weight: ferric oxide 8%, titanium oxide 2%, aluminum oxide 0.2%, potash water glass 10%, graphite 10%, white carbon black 5%, Mierocrystalline cellulose (2H) 7.75%, H100 dispersion agent 0.05%, water 55%, HAS thickening material 2%.

Embodiment 2, percentage ratio takes by weighing raw material by weight: ferric oxide 6.2%, titanium oxide 5%, aluminum oxide 2.795%, potash water glass 30%, graphite 20%, white carbon black 1%, Mierocrystalline cellulose (2H) 2%, H100 dispersion agent 3%, water 30%, HAS thickening material 0.005%.

Embodiment 3, percentage ratio takes by weighing raw material by weight: ferric oxide 0.2%, titanium oxide 1%, aluminum oxide 3%, potash water glass 26%, graphite 5%, white carbon black 4%, Mierocrystalline cellulose (2H) 10%, H100 dispersion agent 2.5%, water 46.8%, HAS thickening material 1.5%.

Embodiment 4, percentage ratio takes by weighing raw material by weight: ferric oxide 2%, titanium oxide 1%, aluminum oxide 1%, potash water glass 50%, graphite 5%, white carbon black 2%, Mierocrystalline cellulose (2H) 3%, H100 dispersion agent 1%, water 34%, HAS thickening material 1%.

Follow these steps to make coating:

(2), potash water glass is joined in the clean kneader, add graphite, cellulose solution, metal oxide that slaking is good again, mediate, mediated 6-15 hour, make metal oxide, graphite, white carbon black, potash water glass thorough mixing even from carbon black;

(3), kneaded material is taken out, put in the dosing vessel, add entry, even with the high speed dispersor dispersed with stirring;

(4), finely dispersed material put in ball mill or the sand mill further to grind disperses, reach fully below 10 microns until granularity, stop to grind, emit material and contain in container;

(5), above-mentioned ground material is put in the make-up tank, add water, H100 dispersion agent, HAS thickening material, disperse allotment, detect solid content, viscosity, dispensed solution is sieved promptly get coating then with high speed dispersor;

(6), with the packing of gained coating.

In the production process of coating, can change the color of coating by the ratio that changes ferric oxide, titanium oxide, as: when iron oxide content be 8%, when titanium oxide content is 2%, the color of coating is red for misfortune; When iron oxide content be 2%, when titanium oxide content is 5%, painting color is a Dark grey.

Performance index of the present invention are as follows:

Coating appearance: brown is to grey black liquid;

The quality solid content is 30-60%;

Viscosity is 300-600mpa.s (60 rev/mins of 2# rotors);

Granularity≤10um.

Claims

1. a coating that improves far-infrared heater radiation efficiency is characterized in that being made by following raw materials by weight percent: metal oxide 1.4-16%, potash water glass 10-50%, graphite 5-20%, white carbon black 1-5%, Mierocrystalline cellulose (2H) 2-10%, H100 dispersion agent 0.05-3%, water 30-55%, HAS thickening material 0.005-2%.

2. according to the coating of the described raising far-infrared heater radiation efficiency of claim 1, it is characterized by described metal oxide and be: ferric oxide 0.2-8%, titanium oxide 1-5%, aluminum oxide 0.2-3%.

3. production method of producing the coating of the described raising far-infrared heater radiation efficiency of claim 1 is characterized in that following these steps to carrying out:

(1) earlier with cellulose dissolution in water, slaking is standby more than 24 hours;

(2) potash water glass is joined in the kneader, add graphite, cellulose solution that slaking is good, metal oxide, white carbon black again and mediate, mediated 6-15 hour;

(3) kneaded material is taken out, put in the dosing vessel, add entry, even with the dispersion machine dispersed with stirring;

(4) finely dispersed material is put into further grinding dispersion in the grinding machine, reached fully below 10 microns, stop to grind, emit material and contain in container until granularity;

(5) above-mentioned ground material is put in the make-up tank, added entry, H100 dispersion agent, HAS thickening material, disperse allotment, sieve then and promptly get coating with dispersion machine;

(6) with the packing of gained coating.