CN104744018A - Ceramic tile with humidity adjusting function and production method of ceramic tile - Google Patents
Ceramic tile with humidity adjusting function and production method of ceramic tile Download PDFInfo
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Abstract
The invention discloses a ceramic tile with a humidity adjusting function and a production method of the ceramic tile. The ceramic tile is divided into a fabric layer and a backing material layer from top to bottom, wherein the fabric layer is prepared from plastic soil with high loss of ignition, diatomaceous shale, vermiculite, bauxite and attapulgite; a backing material is prepared from low-temperature powder of ceramic powder of which the firing shrinkage coefficient is consistent with that of fabric; the ceramic tile is fired at a low temperature after being molded; a glass phase of the fabric layer is not generated, so that a hole is not plugged; the expansion coefficients among kinds of raw materials are not matched, so that small micro cracks are generated on submicron moisture absorption holes; the moisture absorption-desorption capability is enhanced; and the strength of the brick is ensured after the backing material layer is sintered. According to the method disclosed by the invention, the problem of low strength of an existing humidity-adjusting material ceramic brick is solved.
Description
Technical field
The invention belongs to the preparation field of architectural pottery product, be specifically related to a kind of ceramic tile and the production method thereof with adjustment humidity function.
Background technology
Relative air humidity is the physical quantity representing the how many that is dry wet degree of water in air vapour, it is the important parameter weighing indoor environment, it is all significant to depositing of HUMAN HEALTH, IAQ (indoor air quality) and article, too high or too low humidity effect HUMAN HEALTH, has serious hazardness to the preservation of article, the life-span of instrument etc.; Harm when humidity is alternately changed by too high (low) to too low (height) is even more serious.Country's " air quality standard " specifies indoor relative humidity standard value, and summer air-conditioning room is 40% ~ 60%, and winter heating room is 30% ~ 60%.China's humid area annual relative humidity is 70% ~ 80%, and sometimes up to 95% ~ 100%, the relative humidity of northern drying period even can reach less than 10%.The building in these areas will reach the thermal comfort requirement of indoor environment, the indoor environmental quality problem brought with regard to needing to take efficient method to solve relative humidity.At present, humid control control method can be divided into proactive and passive type method by whether consuming artificial energy source.The former i.e. air-conditioning technical, is 20 methods generally adopted at present, consumes a large amount of electric energy, and contaminate environment and destruction ecology, cause problems such as " architecture indoor syndromess ", do not meet the strategy of sustainable development.The latter utilizes the moisture adsorption and releasing characteristic of renewable energy source or material to carry out regulating and controlling humidity, without the need to consuming any artificial energy source, is a kind of ecological property regulating and controlling method." humidity adjusting material ", refers to and does not need, by any artificial energy source and mechanical means, to rely on the moisture absorption and desorption property of self, and induction institute adjusts the change of space empty gas epidemic disaster, thus the material of automatic adjustment relative air humidity.Japan, during 1980 to 1987, employs humidity adjusting material greatly in nearly hundred engineerings, plays a significantly greater role with keeping to the protection of historical relic and important fine arts books and periodicals.The humidity adjusting material research patent of Japan was in the trend risen in recent years, mainly
It is inorganic humidity adjusting material.Before the state-run industry comprehensive technology research institute of Japan, Tian Yaxi is by water glass and aluminium hydroxide and kaolin through 800 DEG C ~ 1150 DEG C common sinter moldings, makes the aluminium base humidity adjusting material with humidity adjusting function; JANIS company utilizes one or more and mineral binder bond of sepiolite, diatomite, zeolite and light weight concrete to be raw material, makes humidity control material through shaping and drying.
The domestic research for humidity adjusting material, majority selects the materials such as zeolite, diatomite, malthacite, glassiness volcanic soil, sepiolite, acidic white earth, gac, silica gel, white carbon black, activated alumina, aluminium hydroxide as main absorbent, the moisture absorption and desorption property of natural mineral is utilized to reach damping object, but performance in damping capacity, damping responsiveness etc. or not ideal.
At present on the market for for the research of passive type green hue wet stock and product all not yet ripe.Although organic humidity controlling material moisture uptake is large, rate of moisture absorption is fast, and moisture releasing amount is little, and moisture releasing speed is slow; The mineral such as polynite, diatomite, sepiolite have natural porous and laminate structure, and as moisture regulator, wet volume capacity is less; Although some novel humidity adjusting material humidity is better, manufacturing process is complicated, and production cost is too high.Therefore, this technology need to improve.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of ceramic tile and the production method thereof with adjustment humidity function, be intended to solve the low problem of existing damping ceramic tile intensity.
For achieving the above object, the technical solution used in the present invention is as follows: a kind of ceramic tile, be made up of initial bed and precoat, precoat weight percentages of components is: Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts, diatomaceous shale 15 ~ 36 parts, vermiculite 7 ~ 15 parts, bauxitic clay 8 ~ 16 parts, attapulgite 5 ~ 15 parts, properties-correcting agent 0.3 ~ 1.5 part, dispersion agent 0.5 ~ 2.0 part; The ceramic low-temp powder that described initial bed is less than or equal to 0.05 by the absolute value of the difference of burning till shrinkage coefficient and precoat is formed.
The loss on ignition of described Liu Jia mountain clay, Yangquan kaolin, black imperial port clay is all greater than 10.5wt%.
Described Liu Jia mountain clay, chemical weight percentage composition is SiO2:58.43%, Al2O3:30.00%, Fe2O3:0.31%, CaO:0.47%, MgO:0.42%, K2O:0.12%, Na2O:0.12%, igloss: 10.64%.
Described Yangquan kaolin, chemical weight percentage composition is SiO2:58.53%, Al2O3:27.24%, Fe2O3:1.25%, TiO2:0.97%, CaO:0.40%, MgO:0.25%, K2O:1.17%, Na2O:0.21%, igloss: 10.54%.
Described black imperial port clay, chemical weight percentage composition is SiO2:57.07%, Al2O3:28.28%, Fe2O3:1.61%, TiO2:1.04%, CaO:0.20%, MgO:0.24%, K2O:0.50%, Na2O:0.20%, igloss: 12.03%.
Described diatomaceous shale, density is 0.47g/cm3, specific surface area 100m2/g, and hole concentrates between 40-80 nanometer.
Described diatomaceous shale, particle diameter distribution is below 20 nanometers: 9%, 21-40 nanometer: 28%, 40-80 nanometer: 47%, more than 80 nanometers: 16%.
Described vermiculite is expanded vermiculite, and chemical weight percentage composition is SiO2:42.13%, Al2O3:18.07%, Fe2O3:8.06%, CaO:0.82%, MgO:26.74%, K2O:7.24%, and pH value is 8.15.
Described aluminium vanadine, density is 3.94g/cm3; Described attapulgite, density is 2.25 g/cm3.
Described properties-correcting agent is one or more mixing in octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent.
The components by weight percent of initial bed is: plastic koalin 35-45 part, and potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part.
The absolute value burning till the difference of shrinkage coefficient of described precoat and initial bed is less than or equal to 0.05.
What this ceramic tile precoat contained that high fever loses that plasticity earth and diatomaceous shale, vermiculite, bauxitic clay, attapulgite stay after sintering can the sub-micron pore of damping; This ceramic tile is through easy fired, and glassy phase does not generate, and does not block hole, and does not mate due to the coefficient of expansion between various raw material, and submicron moisture absorption hole produces tiny tiny crack, strengthens product moisture adsorption and releasing ability.Initial bed uses and burns till the basically identical low-temp ceramics powder of shrinkage coefficient with it simultaneously, ensures product strength.
Above-mentioned ceramic tile is the tiny tiny crack do not mated on increase submicron moisture absorption hole utilizing the coefficient of expansion between raw material, strengthens product hygroscopic property, following technique can be taked to prepare:
(1) Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts are weighed mixing, add dispersion agent 0.5 ~ 2.0 part of wet ball grinding, ball milling disposed slurry fineness is that 250 mesh sieves tail over 0.5% ~ 0.8%, 100 mesh sieves are crossed after drying, wherein, dispersion agent is ceramic common dispersants;
(2) powder after sieving adds properties-correcting agent 0.3 ~ 1.5 part, add water 3-5% granulation, corner batch mixing method is adopted to mix, wherein, properties-correcting agent is one or more mixing in octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent;
(3) by diatomaceous shale 15 ~ 36 parts, vermiculite 7 ~ 15 parts, bauxitic clay 8 ~ 16 parts, attapulgite 5 ~ 15 parts weighs mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine, attapulgite compound dry mixed are evenly made fabric;
(5) by plastic koalin 35-45 part, potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation;
(6) adopt dry-pressing formed, will enter after the body drying after impact briquetting after the bed material layer-by-layer distribution of fabric klining become, firing temperature is 850-1050 DEG C.
Beneficial effect:
1, diatomaceous shale is that diatomite containing impurity is subject to developing a kind of shale class mineral of evolving and being formed gradually from the effect of earth interior nuclear heat, and in diatomaceous shale, major part exists with crystalline form.The density of diatomaceous shale is 0.47g/cm3, and specific surface area, at about 100m2/g, is diatomaceous 4 times (Jilin diatomite, Yunnan specific surface area of diatomite are 20-30m2/g), and absorption volume is diatomaceous 5 times.
The Jilin diatomite hole preparing humidity adjusting material at present conventional concentrates between 4501-6000 nanometer, and the distribution of diatomite space, Yunnan concentrates between 1801-3000 nanometer, and the hole of diatomaceous shale concentrates between 40-80 nanometer.Human body optimum humidity is at 45%-65%, according to rubbing, root law can calculate, and hygroscopic material radius corresponding to optimum humidity should be 45-62 nanometer, and the aperture integrated distribution of diatomaceous shale is at 40-80 ran, in radius needed for damping, moisture sorption effect is better than diatomite.
2, the loss on ignition of Liu Jia mountain clay, Yangquan kaolin, black imperial port clay is all greater than 10.5%wt, and the coefficient of expansion of three kinds of pugs does not mate; In addition, expanded vermiculite in formula has unique structural property (the secondary metamorphic mineral of water aluminosilicate containing magnesium of laminate structure) and surface properties (can sharply expand during calcination), these several mineral use together, the tiny tiny crack increased on submicron moisture absorption hole can be played in formula, strengthen product hygroscopic property.
3, add octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent etc. after pug mixing being sieved and carry out modification, can reach and increase raw material adsorptivity, cation exchange property and larger inside and outside specific surface area, interlayer compound or insertion reaction can be carried out with many guest species simultaneously; Diatomaceous shale, vermiculite, the aluminium vanadine compound of the good grain composition of access control more afterwards, just can obtain the ceramic tile that damping capacity is large, damping responsiveness is high after firing.
4, initial bed uses and burns till the basically identical low-temp ceramics powder of shrinkage coefficient with precoat, ensures product strength.
Embodiment
The invention provides a kind of ceramic tile and the production method thereof with adjustment humidity function, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Ceramic tile provided by the invention, be made up of initial bed and precoat, precoat weight percentages of components is: Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts, diatomaceous shale 15 ~ 36 parts, vermiculite 7 ~ 15 parts, bauxitic clay 8 ~ 16 parts, attapulgite 5 ~ 15 parts, properties-correcting agent 0.3 ~ 1.5 part, dispersion agent 0.5 ~ 2.0 part; The ceramic low-temp powder that described initial bed is less than or equal to 0.05 by the absolute value of the difference of burning till shrinkage coefficient and precoat is formed.
Below each component in the present invention is described in detail.
The loss on ignition of described Liu Jia mountain clay, Yangquan kaolin, black imperial port clay is all greater than 10.5wt %.
Described Liu Jia mountain clay, chemical weight percentage composition is SiO2:58.43%, Al2O3:30.00%, Fe2O3:0.31%, CaO:5 0.47%, MgO:0.42%, K2O:0.12%, Na2O:0.12%, igloss: 10.64%.
Described Yangquan kaolin, chemical weight percentage composition is SiO2:58.53%, Al2O3:27.24%, Fe2O3:1.25%, TiO2:0.97%, CaO:0.40%, MgO:0.25%, K2O:1.17%, Na2O:0.21%, igloss: 10.54%.
Described black imperial port clay, chemical weight percentage composition is SiO2:57.07%, Al2O3:28.28%, Fe2O3:1.61%, TiO2:1.04%, CaO:0.20%, MgO:0.24%, K2O:0.50%, Na2O:0.20%, igloss: 12.03%.
Described diatomaceous shale, density is 0.47g/cm3, specific surface area 100m2/g, and hole concentrates between 40-80 nanometer.
Described diatomaceous shale, particle diameter distribution is 0-20 nanometer: 9%, 21-40 nanometer: 28%, 40-80 nanometer: 47%, more than 80 nanometers: 16%.
Described vermiculite is expanded vermiculite, and chemical weight percentage composition is SiO2:42.13%, Al2O3:18.07%, Fe2O3:8.06%, CaO:0.82%, MgO:26.74%, K2O:7.24%, and pH value is 8.15.
Described aluminium vanadine, density is 3.94g/cm3; Described attapulgite, density is 2.25 g/cm3.
Described properties-correcting agent is one or more mixing in octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent.
A kind of ceramic tile described in patent, what it is characterized in that this ceramic tile contains that high fever loses that plasticity earth and diatomaceous shale, vermiculite, bauxitic clay, attapulgite stay after sintering can the sub-micron pore of damping; This ceramic tile is through easy fired, and glassy phase does not generate, and does not block hole, and does not mate due to the coefficient of expansion between various raw material, and submicron moisture absorption hole produces tiny tiny crack, strengthens product moisture adsorption and releasing ability.
Diatomaceous shale is that the diatomite containing impurity is subject to developing a kind of shale class mineral of evolving and being formed gradually from the effect of earth interior nuclear heat, and in diatomaceous shale, major part exists with crystalline form.The density of diatomaceous shale is 0.47g/cm3, and specific surface area, at about 100m2/g, is diatomaceous 4 times (Jilin diatomite, Yunnan specific surface area of diatomite are 20-30m2/g), and absorption volume is diatomaceous 5 times.The Jilin diatomite hole preparing humidity adjusting material at present conventional concentrates between 4501-6000 nanometer, and the distribution of diatomite space, Yunnan concentrates between 1801-3000 nanometer, and the hole of diatomaceous shale concentrates between 40-80 nanometer.Human body optimum humidity is at 45%-65%, according to rubbing, root law can calculate, and hygroscopic material radius corresponding to optimum humidity should be 45-62 nanometer, and the aperture integrated distribution of diatomaceous shale is at 40-80 ran, in radius needed for damping, moisture sorption effect is better than diatomite.
The loss on ignition of Liu Jia mountain clay, Yangquan kaolin, black imperial port clay is all greater than 10.5wt %, and the coefficient of expansion of three kinds of pugs does not mate; In addition, expanded vermiculite in formula has unique structural property (the secondary metamorphic mineral of water aluminosilicate containing magnesium of laminate structure) and surface properties (can sharply expand during calcination), these several mineral use together, the tiny tiny crack increased on submicron moisture absorption hole can be played in formula, strengthen product hygroscopic property.
Add octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent etc. after pug mixing being sieved and carry out modification, can reach and increase raw material adsorptivity, cation exchange property and larger inside and outside specific surface area, interlayer compound or insertion reaction can be carried out with many guest species simultaneously; Diatomaceous shale, vermiculite, the aluminium vanadine compound of the good grain composition of access control more afterwards, just can obtain the ceramic tile that damping capacity is large, damping responsiveness is high after firing.
The components by weight percent of initial bed is: plastic koalin 35-45 part, and potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part.
The absolute value burning till the difference of shrinkage coefficient of described precoat and initial bed is less than or equal to 0.05.
For utilizing the tiny tiny crack do not mated on increase submicron moisture absorption hole of the coefficient of expansion between raw material, strengthen product hygroscopic property, a kind of ceramic tile described in patent can take following technique to prepare:
(1) Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts are weighed mixing, add dispersion agent 0.5 ~ 2.0 part of wet ball grinding, ball milling disposed slurry fineness is 250 mesh screen residues 0.5% ~ 0.8%, 100 mesh sieves are crossed after drying, wherein, dispersion agent is ceramic common dispersants;
(2) powder after sieving adds properties-correcting agent 0.3 ~ 1.5 part, add water 3-5% granulation, corner batch mixing method is adopted to mix, wherein, properties-correcting agent is one or more mixing in octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent;
(3) diatomaceous shale 15 ~ 36 parts, vermiculite 7 ~ 15 parts, bauxitic clay 8 ~ 16 parts, attapulgite 5 ~ 15 parts are weighed mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine compound dry mixed are evenly made fabric;
(5) by plastic koalin 35-45 part, potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation;
(6) adopt dry-pressing formed, will enter after the body drying after impact briquetting after the bed material layer-by-layer distribution of fabric klining become, firing temperature is 850-1050 DEG C.
With specific embodiment, the present invention is specifically described below.
Embodiment 1:
(1) Liu Jia mountain clay 12.6 parts, Yangquan kaolin 7.5 parts, black imperial port clay 8.3 parts are weighed mixing, add dispersion agent 0.6 part of wet ball grinding, ball milling disposed slurry fineness is that 250 mesh sieves tail over 0.8%, crosses 100 mesh sieves after drying, wherein, dispersion agent is ceramic common dispersants;
(2) powder after sieving adds properties-correcting agent 0.4 part, and add water 3.0% granulation, adopts corner batch mixing method to mix, and wherein, properties-correcting agent is Dodecyl trimethyl ammonium chloride, thanomin, trolamine, silane coupling agent mixing;
(3) by diatomaceous shale 34.6 parts, vermiculite 10.9 parts, bauxitic clay 15.8 parts, attapulgite 9.3 parts weighs mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine compound dry mixed are evenly made fabric;
(5) by plastic koalin 40 parts, potassium receives feldspar 35 parts, 15 parts, sand, 5 parts, glass powder, lithium feldspar 5 parts; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation;
(6) adopt dry-pressing formed, forming pressure is 21MPa, and enter klining after the body drying after shaping, firing temperature is 855 DEG C, and firing time is 3.5 hours.
Precoat thickness is 3-5mm, and initial bed thickness is 5-8mm.
The absolute value that precoat and initial bed burn till the difference of shrinkage coefficient is 0.03.
Test products performance, the moisture absorption that rear goods are burnt in test is 345g/m2; Moisture releasing is 188g/m2; Folding strength is 17MPa.
Embodiment 2:
(1) Liu Jia mountain clay 16.2 parts, Yangquan kaolin 12.0 parts, black imperial port clay 14.1 parts are weighed mixing, add dispersion agent 1.3 parts of wet ball grindings, ball milling disposed slurry fineness is that 250 mesh sieves tail over 0.6%, crosses 100 mesh sieves after drying, wherein, dispersion agent is ceramic common dispersants;
(2) powder after sieving adds properties-correcting agent 0.9 part, and add water 4.0% granulation, adopts corner batch mixing method to mix, and wherein, properties-correcting agent is octadecyl trimethyl ammonium chloride, trolamine, titanate coupling agent mixing;
(3) by diatomaceous shale 20.9 parts, vermiculite 13.6 parts, bauxitic clay 8.7 parts, attapulgite 12.3 parts weighs mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine compound dry mixed are evenly made fabric;
(5) by plastic koalin 45 parts, potassium receives feldspar 40 parts, 10 parts, sand, 2 parts, glass powder, lithium feldspar 3 parts; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation; (6) adopt dry-pressing formed, forming pressure is 18 MPa, and enter klining after the body drying after shaping, firing temperature is 940 DEG C of firing times 2.5 hours.
Precoat thickness is 3-5mm, and initial bed thickness is 5-8mm.
The moisture absorption that rear goods are burnt in test is 290g/m2; Moisture releasing is 171g/m2; Folding strength is 17.5MPa.
Embodiment 3:
(1) Liu Jia mountain clay 20.7 parts, Yangquan kaolin 16.4 parts, black imperial port clay 19.2 parts are weighed mixing, add dispersion agent 2.0 parts of wet ball grindings, ball milling disposed slurry fineness is that 250 mesh sieves tail over 0.5%, crosses 100 mesh sieves after drying, wherein, dispersion agent is ceramic common dispersants;
(2) powder after sieving adds properties-correcting agent 1.5 parts, add water 5.0% granulation, adopt corner batch mixing method to mix, wherein, properties-correcting agent is octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin mixing;
(3) by diatomaceous shale 14.7 parts, vermiculite 8.1 parts, bauxitic clay 9.8 parts, attapulgite 7.7 parts weighs mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine compound dry mixed are evenly made fabric;
(5) by plastic koalin 45 parts, potassium receives feldspar 40 parts, 10 parts, sand, 2 parts, glass powder, lithium feldspar 3 parts; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation;
(6) adopt dry-pressing formed, forming pressure is 14 MPa, and enter klining after the body drying after shaping, firing temperature is 1020 DEG C, and firing time is 2.5 hours.
Precoat thickness is 3-5mm, and initial bed thickness is 5-8mm.
The moisture absorption that rear goods are burnt in test is 253g/m2; Moisture releasing is 121g/m2; Folding strength is 18.7MPa.
Ceramic tile provided by the invention, what this ceramic tile contained that high fever loses that plasticity earth and diatomaceous shale, vermiculite, bauxitic clay, attapulgite stay after sintering can the sub-micron pore of damping; This ceramic tile is through easy fired, and glassy phase does not generate, and does not block hole, and does not mate due to the coefficient of expansion between various raw material, and submicron moisture absorption hole produces tiny tiny crack, strengthens product moisture adsorption and releasing ability.Use and burn till the basically identical low-temp ceramics brick powder of shrinkage coefficient with precoat, one composite molding, be that brick is surperficial for having the functional layer regulating humidity, product strength, for having the supporting layer of higher degree of sintering and intensity, is guaranteed in bottom.Technical scheme in the application, the proportioning of concrete raw material combines with corresponding preparation technology, by performing creative labour, finally achieve those skilled in the art unforeseeable technique effect and outstanding substantial advance, concrete successful is better than product of the prior art.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. one kind has the ceramic tile regulating humidity function, be made up of initial bed and precoat, it is characterized in that: the components by weight percent of described precoat is: Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts, diatomaceous shale 15 ~ 36 parts, vermiculite 5 ~ 15 parts, bauxitic clay 8 ~ 16 parts, attapulgite 9 ~ 21 parts, properties-correcting agent 0.3 ~ 1.5 part, dispersion agent 0.5 ~ 2.0 part; The ceramic low-temp powder that described initial bed is less than or equal to 0.05 by the absolute value of the difference of burning till shrinkage coefficient and precoat is formed.
2., according to the ceramic tile with adjustment humidity function described in claim 1, it is characterized in that, the loss on ignition of described Liu Jia mountain clay, Yangquan kaolin and Hei Long port clay is all greater than 10.5 wt %.
3. there is according to the high strength described in claim 2 ceramic tile regulating humidity function, it is characterized in that, the chemical constitution weight percent of described Liu Jia mountain clay is SiO2:58.43%, Al2O3:30.00%, Fe2O3:0.31%, CaO:0.47%, MgO:0.42%, K2O:0.12%, Na2O:0.12%, igloss: 10.64%;
Described Yangquan kaolin, chemical constitution weight percent is SiO2:58.53%, Al2O3:27.24%, Fe2O3:1.25%, TiO2:0.97%, CaO:0.40%, MgO:0.25%, K2O:1.17%, Na2O:0.21%, igloss: 10.54%; Described black imperial port clay, chemical constitution weight percent is SiO2:57.07%, Al2O3:28.28%, Fe2O3:1.61%, TiO2:1.04%, CaO:0.20%, MgO:0.24%, K2O:0.50%, Na2O:0.20%, igloss: 12.03%.
4., according to the ceramic tile with adjustment humidity function described in claim 1, it is characterized in that, described diatomaceous shale, density is 0.47g/cm
3, specific surface area 100m
2/ g, hole concentrates between 40-80 nanometer.
5., according to the ceramic tile with adjustment humidity function described in claim 4, it is characterized in that, described diatomaceous shale, particle diameter distribution is below 20 nanometers: 9%, 21-40 nanometer: 28%, 40-80 nanometer: 47%, more than 80 nanometers: 16%.
6. according to the ceramic tile with adjustment humidity function described in claim 1, it is characterized in that, described vermiculite is expanded vermiculite, chemical constitution weight percent is SiO2:42.13%, Al2O3:18.07%, Fe2O3:8.06%, CaO:0.82%, MgO:26.74%, K2O:7.24%, and pH value is 8.15.
7., according to the ceramic tile with adjustment humidity function described in claim 1, it is characterized in that, described aluminium vanadine, density is 3.94g/cm3; Described attapulgite, density is 2.25 g/cm3.
8. according to having the ceramic tile regulating humidity function described in claim 1, it is characterized in that, to be components by weight percent be described initial bed: plastic koalin 35-45 part, and potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part.
9. there is the ceramic tile regulating humidity function according to claim 1-8 any one, it is characterized in that: the absolute value burning till the difference of shrinkage coefficient of described precoat and initial bed is less than or equal to 0.05.
10. prepare a method described in claim 1-8 any one with the ceramic tile regulating humidity function, it is characterized in that, concrete steps are as follows:
(1) Liu Jia mountain clay 8 ~ 21 parts, Yangquan kaolin 7 ~ 17 parts, black imperial port clay 8 ~ 20 parts are weighed mixing, add dispersion agent 0.5 ~ 2.0 part of wet ball grinding, ball milling disposed slurry fineness is 250 mesh screen residues 0.5% ~ 0.8%, 100 mesh sieves are crossed after drying, wherein, described dispersion agent is ceramic common dispersants; (2) powder after sieving adds properties-correcting agent 0.3 ~ 1.5 part, add water 3-5% granulation, corner batch mixing method is adopted to mix, wherein, properties-correcting agent is one or more mixing in octadecyl trimethyl ammonium chloride, Dodecyl trimethyl ammonium chloride, dodecyl benzyl dimethyl ammonium chloride, thanomin, trolamine, silane coupling agent, titanate coupling agent;
(3) diatomaceous shale 15 ~ 36 parts, vermiculite 7 ~ 15 parts, aluminium vanadine 8 ~ 16 parts, attapulgite 5 ~ 15 parts are weighed mixing, dry ball milling, sieves and makes its grain composition be below 80 orders: 10%, 80 order-100 orders: 25%, 100 order-200 orders: 35%, more than 200 orders: 30%;
(4) modified powder and diatomaceous shale, vermiculite, aluminium vanadine compound dry mixed are evenly made fabric;
(5) by plastic koalin 35-45 part, potassium receives feldspar 30-40 part, sand 10-15 part, glass powder 2-5 part, lithium feldspar 3-5 part; Softening agent 0.5-1.0 part makes bed material after ink-jet granulation;
(6) adopt dry-pressing formed, will enter after the body drying after impact briquetting after the bed material layer-by-layer distribution of fabric klining become, firing temperature is 850-1050 DEG C.
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Application publication date: 20150701 |