CN104261881B - A kind of preparation method of once-firing crystallite glass composite plate - Google Patents
A kind of preparation method of once-firing crystallite glass composite plate Download PDFInfo
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- CN104261881B CN104261881B CN201410490699.4A CN201410490699A CN104261881B CN 104261881 B CN104261881 B CN 104261881B CN 201410490699 A CN201410490699 A CN 201410490699A CN 104261881 B CN104261881 B CN 104261881B
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Abstract
A preparation method for once-firing crystallite glass composite plate, comprises the following steps: A, base substrate impact briquetting; B, sprinkling hydrophober; C, execute glass ceramics frit: dispense glass ceramics frit in the water-repellent layer surface of step B and spray one deck polyurethanes fixing agent, polyurethanes fixing agent carrys out proportioning by the massfraction of following component: non-ionic polyurethane associative thickener 3.8-4.8%, attapulgite clay 1.8-2.4%, defoamer 0.6-1%, dispersion agent 0.6-1.6%, surplus is solvent; D, to burn till: send into kiln kiln roasting, firing temperature is 1150-1250 DEG C; E, rubbing down are processed, and obtain crystallite glass composite plate finished product.The detrimentally affect that present method can avoid the adsorption of kiln preheating zone to glass ceramics frit to cause, improves product yield; And use hydrophober in scheme, fixing agent can be avoided the impact of blank strength.
Description
Technical field
The present invention relates to a kind of architectural pottery technical field, particularly relate to a kind of preparation method of once-firing crystallite glass composite plate.
Background technology
Crystallite glass composite plate is composite board one deck devitrified glass being compounded in earthenware brick surface, because its surface is glass-ceramic layer, so completely antifouling, and maintenance convenient for cleaning.At present, glass ceramics frit mainly covers certain thickness glass ceramics frit (granular size is at 15-150 order) by distributing mode in billet surface or glaze paint upper berth, and spray one deck fixing agent particle is fixed on billet surface, burn till and rear glaze paint to be reprocessed, the quality of glass ceramics frit directly determines the quality of adobe planeness and adobe decorative effect, the fixing agent used in prior art is that common glue mixes by a certain percentage with water, at its surface spraying one deck glue fixing agent after the good glass ceramics frit of adobe cloth.But aborning, it is under the environment being in lower negative pressure that the adobe that cloth is good will send into preheating zone in kiln, fine particle (being especially less than 100 orders) is because lighter weight is easily sucked away, and the glue fixing agent overlaying on surface can not play good bonding fixed action to glass ceramics frit particle.In addition, if the use of glue fixing agent is applied in the production of once-firing crystallite glass composite plate, solvent in glue infiltrates glass ceramics frit layer and continues the powder layer penetrating into base substrate, originally dry powder layer is made to be drawn to moisture in glue, thus affect the intensity of green compact, easily there is the phenomenons such as fracture when being transported to kiln, adobe water ratio is improved, easily crack, yield rate and qualified yield rate reduce greatly.If fixing agent can play good bonding fixed action to glass ceramics frit particle, also can design simultaneously and effectively prevent adobe from inhaling water problem, then can improve the formation in finished product devitrified glass face and the yield rate of crystallite glass composite plate greatly, reduce the waste that the glass ceramics frit particle be sucked away greatly reducing resource.
Summary of the invention
The object of the invention is to propose a kind of yield rate high and improve the preparation method of the once-firing crystallite glass composite plate of once-firing crystallite glass composite plate brick surface evenness.
For reaching this object, the present invention by the following technical solutions:
A preparation method for once-firing crystallite glass composite plate, is characterized in that: comprise the following steps:
A, base substrate impact briquetting: after selecting the base substrate powder of well-known formulations and granularity≤200 object micro mist layer powder to be divided into cloth, strike out biscuit;
B, sprinkling hydrophober: spray one deck hydrophober in billet surface;
C, execute glass ceramics frit: dispense glass ceramics frit in the water-repellent layer surface of step B and spray one deck polyurethanes fixing agent, polyurethanes fixing agent carrys out proportioning by the massfraction of following component: non-ionic polyurethane associative thickener 3.8-4.8%, attapulgite clay 1.8-2.4%, defoamer 0.6-1%, dispersion agent 0.6-1.6%, surplus is solvent;
D, to burn till: send into kiln kiln roasting, firing temperature is 1150-1250 DEG C;
E, rubbing down are processed: the goods burning till rear cooling are obtained crystallite glass composite plate finished product through the processing of polishing edging.
Preferably, hydrophober described in step B is modified polyvinyl alcohol hydrophober.
Preferably, in step D, firing period is 90-120min.
Preferably, the defoamer added in the fixing agent of polyurethanes described in step C is polyether-type GPE defoamer.
Preferably, the dispersion agent added in the fixing agent of polyurethanes described in step C is at least one in tripoly phosphate sodium STPP, sodium polyacrylate.
Preferably, the solvent of the fixing agent of polyurethanes described in step C is at least one in water, diethylene glycol ether.
Preferably, the granular size of described glass ceramics frit is 70-110 order.
Preferably, described glass ceramics frit fabric thickness is 1-3mm.
Preferably, the preparation method of described polyurethanes fixing agent, comprises the following steps: 1) be dissolved in solvent by non-ionic polyurethane associative thickener, stir; 2) add attapulgite clay, mix evenly; 3) add polyether-type GPE defoamer and tripoly phosphate sodium STPP, stir and obtain frit granule agglomerant.
Beneficial effect of the present invention: 1, improve yield rate, and improve the planeness in the finished bricks face of once-firing crystallite glass composite plate; 2, the problem that the preheating zone solving frit particle lower negative pressure faced by when entering klining is easily sucked away, avoids brick surface to occur the flaw such as a large amount of pin holes and bubble; 3, the fixing agent used can use under neutral environment, and not metal ion, impact is not existed to the color effects that frit particle produces when sintering.
Accompanying drawing explanation
Fig. 1 is the preparation flow schematic diagram of the blank structure of one embodiment of the present of invention;
Fig. 2 is the structural representation of the crystallite glass composite plate burnt till of one embodiment of the present of invention.
Wherein: green body layer 1, water-repellent layer 2, glass ceramics frit layer 3, fixing agent 4, glass-ceramic layer 5.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Adopt the raw ores such as feldspar, clay, kaolin to prepare burden in proportion, through ball milling, deironing, mist projection granulating, sieve, obtain base substrate powder.The chemical composition of the base substrate powder formulation adopted in the embodiment of the present invention is (wt%): SiO2:70%, Al2O3:21%, CaO:1%, MgO:2%, K2O:2%, Na2O:3%, Fe2O3:0.5%, TiO2:0.5%.The chemical composition of the micro mist formula adopted is (wt%): be SiO2:68%, Al2O3:18%, Na2O:6%, K2O:5%, TiO2:0.4%, CaO:0.6%, MgO:2%, ball milling granulation is sieved, and obtains micro mist material.It should be noted that, the recipe ingredient of base substrate powder given here and micro mist can be replaced by other recipe ingredient in common practise, is all applicable in the preparation method of once-firing crystallite glass composite plate of the present invention.
The contrast of embodiment group 1-and prior art
The chemical composition of the formula of the transparent glass-ceramics frit adopted is (wt%): SiO2:63%, Al2O3:10%, Na2O:1.5%, K2O:5%, CaO:3%, MgO:0.2%, ZrO2:0.5%, B2O3:14%, BaO:2.8%, modulates transparent glass-ceramics frit by common practise, crosses 70 mesh sieves, get and tail over part use, be used as the transparent glass-ceramics frit that embodiment group 1 uses.
Embodiment 1-1
Once grill thoroughly a preparation method for bright crystallite glass composite plate, comprise the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 150 degree) and micro powder material (fineness is 150 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, sprinkling hydrophober: spray one deck water-repellent layer in billet surface are modified polyvinyl alcohol hydrophober (buying from Jinan Yue Kai Chemical Co., Ltd.);
C, execute glass ceramics frit: dispense transparent glass-ceramics frit in the water-repellent layer surface of step B and spray one deck polyurethanes fixing agent, the thickness dispensing transparent glass-ceramics frit is 2mm, and the consumption of fixing agent is 300-500g/m2; As Fig. 1, the adobe obtained through steps A, B, C comprises green body layer 1, water-repellent layer 2, glass ceramics frit layer 3 and fixing agent 4, enters firing process.
The component of every 100kg polyurethanes fixing agent: non-ionic polyurethane associative thickener (NaeWoiKorea., Ltd. company, model HIRESOL85) 4.3kg, attapulgite clay 2.0kg, polyether-type GPE defoamer (buying from Hangzhou Fei Er chemical industry company limited) 0.8kg, sodium polyacrylate 0.6g, surplus is water;
D, to burn till: send into kiln kiln roasting, firing temperature is 1200 DEG C, firing period 110min, burns till the crystallite glass composite plate with green body layer 1 and glass-ceramic layer 5 as shown in Figure 2;
E, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging, is combined in two panels ceramic tile front, what brick face was good is merged closely, and therefore finished product planarization is good, and surface is without the visible pin hole of naked eyes.It should be noted that, water can use diethylene glycol ether to replace as solvent, and sodium polyacrylate can use tripoly phosphate sodium STPP to replace as dispersion agent and also can realize this programme.
Embodiment 1-2
Once grill thoroughly a preparation method for bright crystallite glass composite plate, comprise the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 150 degree) and micro powder material (fineness is 150 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, execute glass ceramics frit: dispense transparent glass-ceramics frit in the billet surface of steps A and spray one deck polyurethanes fixing agent, the thickness dispensing transparent glass-ceramics frit is 2mm, and fixing agent consumption is 300-500g/m2;
The component of every 100kg polyurethanes fixing agent: non-ionic polyurethane associative thickener (NaeWoiKorea., Ltd. company, model HIRESOL85) 4.3kg, attapulgite clay 2.0kg, polyether-type GPE defoamer (buying from Hangzhou Fei Er chemical industry company limited) 0.8kg, sodium polyacrylate 0.6g, surplus is water;
C, to burn till: send into kiln kiln roasting, firing temperature is 1200 DEG C, firing period 110min;
D, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging, is combined in two panels ceramic tile front, what brick face was good is merged closely, and therefore finished product planarization is good, and surface is without the visible pin hole of naked eyes.And loss comparatively embodiment 1-1 height 3-5% in the transportation of base substrate after charity frit, and the degradation that after burning, goods cause because of buckling deformation is also many.
Embodiment 1-1 is observed roughly the same in the effect of brick face with the product of embodiment 1-2 from naked eyes, but it is mentioned that in process of production, the adobe of embodiment 1-2 is when step B executes glass ceramics frit and sprays one deck polyurethanes fixing agent, fixing agent portion of water infiltrates in frit particle and penetrates in powder layer that biscuit suppresses, have impact on the intensity of green compact, adobe water ratio is improved, easily crack, when being transported to kiln, adobe is easily ruptured, reduce production efficiency, and embodiment 1-1 first can spray one deck hydrophober in billet surface before executing glass ceramics frit, be seeped into rapidly the base substrate suppressed inner, and produce with its inside the hinge that dewaters, reaction is conjunctiva also, form reaction tension force, the generation of this tension force makes object form together i.e. ventilative but also hydrophobic, the lotus leaf hydrophobic effect interface protective layer of waterproof, the moisture of fixing agent can not be absorbed by base substrate, thus ensure that the intensity of green compact, be less likely to occur fracture when carrying or occur crackle.Visible, the use of hydrophober is the committed step improving yield rate.
Comparative example 1-3
The preparation method once grilling thoroughly bright crystallite glass composite plate of prior art, comprises the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 150 degree) and micro powder material (fineness is 150 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, execute glass ceramics frit: dispense transparent glass-ceramics frit in the billet surface of steps A and spray the viscosity aqueous slurry that one deck is mixed with by Xylo-Mucine, the thickness dispensing transparent glass-ceramics frit is 2mm, and glue quantity is 300-500g/m2;
C, to burn till: send into kiln kiln roasting, firing temperature is 1200 DEG C, firing period 110min;
D, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging, and finished bricks face occurs pin hole, is combined in two panels ceramic tile front during sampling observation, and part there will be the phenomenon that space can be seen in both sides.Therefore degradation problem is more serious.
Here the aqueous solution that used glue is carboxymethyl cellulose, concentration is about 5%, and the water in solution is through frit, and infiltrate in base substrate, blank strength can be caused to reduce, and in subsequent delivery process, loss can promote.
Comparative example 1-4
The preparation method once grilling thoroughly bright crystallite glass composite plate of prior art, comprises the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 150 degree) and micro powder material (fineness is 150 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, sprinkling hydrophober: spray one deck modified polyvinyl alcohol hydrophober (buying from Jinan Yue Kai Chemical Co., Ltd.) in billet surface;
C, execute glass ceramics frit: dispense transparent glass-ceramics frit in the water-repellent layer surface of step B and spray the viscosity aqueous slurry that one deck is mixed with by Xylo-Mucine, the thickness dispensing transparent glass-ceramics frit is 2mm, and glue quantity is 300-500g/m2;
D, to burn till: send into kiln kiln roasting, firing temperature is 1200 DEG C, firing period 110min;
E, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging, finished bricks face occurs pin hole, be combined in two panels ceramic tile front during sampling observation, occasional occurs that the phenomenon in space can be seen in both sides, and buckling deformation rate comparatively embodiment 1-3 is low.
Whether the difference of comparative example 1-3 and comparative example 1-4 sprays hydrophober, the same with the principle effect of the hydrophober told about before, the green strength of comparative example 1-4 is guaranteed, fracture is less likely to occur in the process being transported to kiln, yield rate can be improved, guarantee adobe water ratio, be not easy to crack.
The fixing agent used in embodiment group 1 is carried out viscosity test, the results are shown in following table 1, kinematic viscosity value μ: be coated with-4 glasss measure at 30 DEG C liquid to flow out from the hole of predetermined hole diameter needed for time obtain flow velocity t, and convert by t=0.223 μ+6.0 and draw kinematic viscosity value μ.
The viscosity of the fixing agent used in table 1 embodiment 1-1 and comparative example 1-3 contrasts
| Numbering | Flow velocity/s | Kinematic viscosity value/(mm 2/s) |
| Embodiment 1-1 | 23.4 | 78.03 |
| Comparative example 1-2 | 7.7 | 7.62 |
Comparative example 1-5
The preparation method once grilling thoroughly bright crystallite glass composite plate of prior art, comprises the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 150 degree) and micro powder material (fineness is 150 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, execute glass ceramics frit: dispense transparent glass-ceramics frit in the billet surface of step B, the thickness dispensing transparent glass-ceramics frit is 2mm;
C, to burn till: send into kiln kiln roasting, firing temperature is 1200 DEG C, firing period 110min;
D, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging, finished bricks face occurs pin hole, during sampling observation, two panels ceramic tile front is combined, finished product substantially both sides can be seen space or centre and can see light, does not have good planeness.
From embodiment 1-2, the use of firing the visible fixing agent of finished product of comparative example 1-3 and comparative example 1-5 is the key factor improving finished product planeness, prior art adopts the viscosity aqueous slurry that is mixed with by Xylo-Mucine to play fixed action polyurethanes fixing agent as used in the present invention as the fixing agent of glass ceramics frit particle to glass ceramics frit particle, the suction of transparent glass-ceramics frit granular layer when kiln is sent in adobe by preheating zone lower negative pressure affects, partially transparent glass ceramics frit particle is sucked away, the thickness of transparent glass-ceramics frit granular layer is therefore uneven, have influence on the planeness of finished product, easily there is epirelief or recessed phenomenon in the finished product fired.
Embodiment 2
Once burn a preparation method with the crystallite glass composite plate of ice crystal effect, comprise the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 70 degree) and micro powder material (fineness is 100 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/3 of end base layer thickness, dry;
B, sprinkling hydrophober: spray one deck modified polyvinyl alcohol hydrophober (buying from Jinan Yue Kai Chemical Co., Ltd.) in billet surface;
C, execute glass ceramics frit: dispense temperature resistant transparent frit particle in the water-repellent layer surface of step B and (buy from Zibo Hua Ci enamel frit makeing company, 80 orders) and spray one deck polyurethanes fixing agent, the thickness dispensing temperature resistant transparent glass ceramics frit is 2mm, and the consumption of fixing agent is 300-500g/m2;
The component of every 100kg polyurethanes fixing agent: non-ionic polyurethane associative thickener (NaeWoiKorea., Ltd. company, model HIRESOL85) 4.3kg, attapulgite clay 2.0kg, polyether-type GPE defoamer (buying from Hangzhou Fei Er chemical industry company limited) 0.8kg, sodium polyacrylate 0.6g, surplus is water;
D, to burn till: send into kiln kiln roasting, firing temperature is 1250 DEG C, firing period 90min;
E, rubbing down are processed: the goods burning till rear cooling are processed the crystallite glass composite plate finished product obtaining having ice crystal effect through polishing edging, two panels ceramic tile front is combined, what brick face was good is merged closely, and therefore finished product has good planarization, and surface is without macroscopic pin hole.
Embodiment group 3-attapulgite clay content is to the viscosity of polyurethanes fixing agent
The component of every 100kg polyurethanes fixing agent: non-ionic polyurethane associative thickener (NaeWoiKorea., Ltd. company, model HIRESOL85) 4.3kg, attapulgite clay content according to the form below 2 adds, polyether-type GPE defoamer (buying from Hangzhou Fei Er chemical industry company limited) 0.6kg, tripoly phosphate sodium STPP 1.2kg, surplus is diethylene glycol ether.
The preparation method of above-mentioned polyurethanes fixing agent, comprises the following steps: 1) by soluble in water for non-ionic polyurethane associative thickener, stir; 2) add attapulgite clay, mix evenly; 3) add polyether-type GPE defoamer and tripoly phosphate sodium STPP, stir and obtain polyurethanes fixing agent, flow velocity test is carried out to obtained polyurethanes fixing agent.
Table 2 attapulgite clay addition is on the impact of the flow velocity of polyurethanes fixing agent
Can obtain from table 2, along with the increase of attapulgite clay addition, the flow velocity of polyurethanes fixing agent is larger, but when attapulgite clay addition arrives a certain amount of, the thickening adhesive effect of liquid is reduced on the contrary, the polyurethanes fixing agent of suitable viscosity can be allocated according to the fineness size of glass ceramics frit particle, in general, particle is larger, and the larger reservation fixed action power to particle of viscosity of needs is larger, and those skilled in the art can reference work experience suitably adjust.
Non-ionic polyurethane associative thickener, due to the thickening mechanism of uniqueness, has the thinning effect of good high-shear and levelling effect, so start the status replacing traditional thickening material gradually.Non-ionic polyurethane associative thickener, attapulgite clay and auxiliary agent are mixed by a certain percentage, can obtain use under neutral environment, have good thickening adhesive effect, the binding agent of not metal ion, be applicable to need in Building Ceramics Industry to be fixed with in bonding operation to frit particle, insensitive to PH, so do not limit by PH.
Embodiment group 4-non-ionic polyurethane associative thickener addition is on the impact of polyurethanes fixing agent
The component of every 100kg polyurethanes fixing agent: non-ionic polyurethane associative thickener (NaeWoiKorea., Ltd. company, model HIRESOL85) content according to the form below 3 adds, attapulgite clay 2.0kg, polyether-type GPE defoamer (buying from Hangzhou Fei Er chemical industry company limited) 1kg, tripoly phosphate sodium STPP 1.6kg, surplus is diethylene glycol ether.The preparation method of above-mentioned polyurethanes fixing agent, comprises the following steps: 1) be dissolved in diethylene glycol ether by non-ionic polyurethane associative thickener, stir; 2) add attapulgite clay, mix evenly; 3) add polyether-type GPE defoamer and tripoly phosphate sodium STPP, stir and obtain polyurethanes fixing agent, carry out flow velocity test to obtained polyurethanes fixing agent, testing data is as shown in table 3 below.
Table 3 non-ionic polyurethane associative thickener adds quantifier elimination
| Numbering | Non-ionic polyurethane associative thickener addition/% | Flow velocity/s | Kinematic viscosity value/(mm 2/s) |
| 4-0 | 0 | 7.5 | 6.73 |
| 4-1 | 3.8 | 11.7 | 25.56 |
| 4-2 | 4.0 | 16.4 | 46.64 |
| 4-3 | 4.2 | 20.5 | 65.02 |
| 4-4 | 4.4 | 26.4 | 91.48 |
| 4-5 | 4.6 | 30.3 | 108.97 |
| 4-6 | 4.8 | 37.6 | 141.71 |
The addition that can obtain non-ionic polyurethane associative thickener from table 3 makes suspension play the essential substance of thickening power, measure its pH value of above-described embodiment 4-0 ~ embodiment 4-6 about 7, can use under neutral environment, and due to not metal ion, when playing the bonding of crystallite frit particle on brick face, the color effects that crystallite frit particle produces when sintering is not affected, the problem that the preheating zone simultaneously also solving crystallite frit particle lower negative pressure faced by when entering klining is easily sucked away.The interpolation of polyether-type GPE defoamer can component materials mixing each according to binding agent time, occur in mixed solution bubble number add, bubbling many then needs the content increasing defoamer.
Embodiment group 5
Once burn a preparation method with the crystallite glass composite plate of ice crystal effect, comprise the following steps:
A, base substrate impact briquetting: after base substrate powder (fineness is 120 degree) and micro powder material (fineness is 120 degree) layer-by-layer distribution, strike out the biscuit with end base layer and micro mist layer, wherein the thickness of micro mist layer is 1/2 of end base layer thickness, dry;
B, sprinkling hydrophober: spray one deck modified polyvinyl alcohol hydrophober (buying from Jinan Yue Kai Chemical Co., Ltd.) in billet surface;
C, execute glass ceramics frit: dispense the glass ceramics frit (fineness is 70 orders) with ice crystal effect in the water-repellent layer surface of step B, and spray one deck polyurethanes fixing agent, polyurethanes fixing agent uses by the polyurethanes fixing agent of different viscosity obtained in embodiment group 4 associative list 3 respectively, the impact of polyurethanes fixing agent on crystallite glass composite plate of different viscosity the results are shown in Table 4, the thickness dispensing transparent glass-ceramics frit is 3mm, and the consumption of fixing agent is 400-600g/m2;
D, to burn till: send into kiln kiln roasting, firing temperature is 1150 DEG C, firing period 120min;
E, rubbing down are processed: the goods burning till rear cooling are obtained transparent glass-ceramics composition board finished product through the processing of polishing edging.
The polyurethanes fixing agent of table 4 different viscosity is on the impact of crystallite glass composite plate
Can obtain from table 4, be 70 object glass ceramics frit particles for fineness, the viscosity number of stationary liquid is at 45mm
2/ more than s can make glass ceramics frit particle good be fixed on biscuit surface, it should be noted that, the glass ceramics frit particle of other fineness sizes can repeat above-mentioned test according to the frit particle replacing different fineness size, obtain the kinematic viscosity value scope of optimum fixing agent, those skilled in the art can suitably adjust.
To sum up need the last point illustrated, embodiment given here is optimal way, and only need do suitability adjustment in other component or firing process, this is that those skilled in the art can reference work experience suitably adjust.
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 (8)
1. a preparation method for once-firing crystallite glass composite plate, is characterized in that: comprise the following steps:
A, base substrate impact briquetting: after selecting the base substrate powder of well-known formulations and granularity≤200 object micro mist layer powder layer-by-layer distribution, strike out biscuit;
B, sprinkling hydrophober: spray one deck hydrophober in billet surface;
C, execute glass ceramics frit: dispense glass ceramics frit in the water-repellent layer surface of step B and spray one deck polyurethanes fixing agent, polyurethanes fixing agent carrys out proportioning by the massfraction of following component: non-ionic polyurethane associative thickener 3.8-4.8%, attapulgite clay 1.8-2.4%, defoamer 0.6-1%, dispersion agent 0.6-1.6%, surplus is solvent;
D, to burn till: send into kiln kiln roasting, firing temperature is 1150-1250 DEG C;
E, rubbing down are processed: the goods burning till rear cooling are obtained crystallite glass composite plate finished product through the processing of polishing edging;
Wherein, hydrophober described in step B is modified polyvinyl alcohol hydrophober.
2. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: in step D, firing period is 90-120min.
3. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: the defoamer added in the fixing agent of polyurethanes described in step C is polyether-type GPE defoamer.
4. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: the dispersion agent added in the fixing agent of polyurethanes described in step C is at least one in tripoly phosphate sodium STPP, sodium polyacrylate.
5. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: the solvent of the fixing agent of polyurethanes described in step C is at least one in water, diethylene glycol ether.
6. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: the granular size of described glass ceramics frit is 70-110 order.
7. the preparation method of once-firing crystallite glass composite plate according to claim 1, is characterized in that: described glass ceramics frit fabric thickness is 1-3mm.
8. the preparation method of once-firing crystallite glass composite plate according to claim 1, it is characterized in that: the preparation method of described polyurethanes fixing agent, comprise the following steps: 1) non-ionic polyurethane associative thickener is dissolved in solvent, stirs; 2) add attapulgite clay, mix evenly; 3) add polyether-type GPE defoamer and tripoly phosphate sodium STPP, stir and obtain frit granule agglomerant.
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| CN101210157A (en) * | 2006-12-31 | 2008-07-02 | 郑旷宇 | Micron nano material composite modified water-based adhesive |
| CN103739207A (en) * | 2013-12-17 | 2014-04-23 | 佛山市粤峤陶瓷技术创新服务中心 | Manufacturing method of microcrystalline glass ceramic composite panel with antistatic glass layer |
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| CN101210157A (en) * | 2006-12-31 | 2008-07-02 | 郑旷宇 | Micron nano material composite modified water-based adhesive |
| CN103739207A (en) * | 2013-12-17 | 2014-04-23 | 佛山市粤峤陶瓷技术创新服务中心 | Manufacturing method of microcrystalline glass ceramic composite panel with antistatic glass layer |
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