CN102951928B - Microcrystal dry grain adhering agent - Google Patents

Microcrystal dry grain adhering agent Download PDF

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Publication number
CN102951928B
CN102951928B CN201210391860.3A CN201210391860A CN102951928B CN 102951928 B CN102951928 B CN 102951928B CN 201210391860 A CN201210391860 A CN 201210391860A CN 102951928 B CN102951928 B CN 102951928B
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China
Prior art keywords
dry granular
agent
crystallite
microcrystal
caking agent
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CN201210391860.3A
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Chinese (zh)
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CN102951928A (en
Inventor
石教艺
李向钰
张翼
黄国花
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广东道氏技术股份有限公司
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Priority to CN201210391860.3A priority Critical patent/CN102951928B/en
Publication of CN102951928A publication Critical patent/CN102951928A/en
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Abstract

The invention discloses a microcrystal dry grain adhering agent which comprises the following components in percentage by mass of 2.7-3.6 percent of alkali swelling type thickening agent, 1.2-1.8 percent of bentonite and 1.4-2.7 percent of assistant, a pH regulating agent for regulating the pH of a system to be 8.0-9.0, and the balance of solvent. During use, microcrystal dry grains are uniformly mixed with microcrystal dry grain adhering agent and then the mixture is applied to the surface of a blank body. The microcrystal dry grain adhering agent disclosed by the invention is suitable for microcrystal dry grains with a grain size of 100-250 meshes; in a process of preparing a microcrystal brick, the microcrystal dry grains are prevented from being taken away by low negative pressure of a preheating band of a kiln if the microcrystal dry grains are too small in grain size, therefore, flaws such as a large quantity of pinholes and bubbles in the surface of the microcrystal brink are avoided. After being mixed with the adhering agent provided by the invention, the microcrystal dry grains are good in suspension property, stability and flowability, do not easily precipitate, and cannot generate bubbles after being continuously used.

Description

A kind of crystallite dry granular caking agent

Technical field

The invention belongs to architectural ceramic industry, be specifically related to a kind of crystallite dry granular caking agent.

Background technology

Crystallite brick is the crystallite composite brick of a kind of alternative stone material of ceramic industry development in recent years, the flaw that it has not only avoided lithotome to exist, and integrate glass, pottery, stone material advantage, compact product structure, clean mark, glittering and translucent, stereoscopic sensation is strong, has the sensation as beautiful matter.Crystallite brick is that after polished finish, the lines of stone material is life-like at the thick transparent layer of surface decoration 2~5 mm of general Antique Imitation Tiles, and specular brightness reaches 95 to 97, has reappeared a kind of as beautiful in the gentle effect as amber.At present, crystallite brick is mainly by cloth system, on glaze upper berth, to cover certain thickness dry granular (size of dry granular is at 20~100 orders), and spray one deck fixing agent dry granular is being fixed on to billet surface, burn till and rear glaze is carried out to polishing, the quality of dry granular has directly determined the quality of crystallite brick decorative effect, in production, too little particle is easily introduced pin hole and bubble when burning till, what is more important fine particle (particle diameter is not more than 100 orders) due to lighter weight easily in the preheating zone of kiln because lower negative pressure is sucked away.

Along with the crystallite dry granular of various decorative effects arises at the historic moment, its market of bringing is also inestimable.But the processing of dry granular adopts impact grinding at present, dry granular is directly fallen into the rotating disk of high speed rotating by machine top, under the effect of high speed centrifugation power, shunt at the target stone of rotating disk surrounding and produce high-speed shock and highdensity pulverizing in umbellate form mode with another part, building stones are after hitting mutually, can between rotating disk and casing, form vortex motion again and cause mutual strike, friction, pulverizing repeatedly, the straight-through discharge from bottom.This processing mode has produced part cannot adapt to the small dry granular (particle diameter is not more than 100 orders) of existing cloth system, thereby has caused the wasting of resources.Common small dry granular (particle diameter is not more than 100 orders) is difficult to directly be fixed on the surface of base substrate, is therefore difficult to directly be applied.If by adding caking agent again to drench the mode of glaze in dry granular, can realize the surface that small dry granular is fixed on equably to base substrate, thereby reach good application.So, be badly in need of a kind of dry granular caking agent of research and connect small dry granular, adopt modes such as drenching glaze that small dry granular is applied to actual production, thereby turn waste into wealth, both can reduce the waste of resource, can bring considerable economic benefit for enterprise again.

Glaze pouring requires to add crystallite dry granular to mix afterwards flow velocity with caking agent and, lower than 50s(30 ℃, is coated with-4 glasss), and can not precipitate, the solid content of crystallite dry granular is higher than 60%, but this to be common glue or caking agent be difficult to realization.The domestic research to crystallite dry granular caking agent is at present fewer, and the rare product occurring on market also presents various limitation.So work out, add good fluidity after crystallite dry granular, suspension excellence and the high caking agent of solid holdup to there are wide market outlook.

Summary of the invention

The object of the present invention is to provide a kind of crystallite dry granular caking agent.

For existing deficiency in prior art, the technical solution adopted in the present invention is:

A kind of crystallite dry granular caking agent, by mass percentage, contain following component: alkali swelling type thickening material 2.7~3.6%, wilkinite 1.2~1.8%, auxiliary agent 1.4~2.7%, with the pH of pH adjusting agent regulation system be 8.0~9.0, surplus is solvent.

Preferably, auxiliary agent is dispersion agent, defoamer, and in system, the quality percentage composition of dispersion agent is 1.0~2.2%, the quality percentage composition of defoamer is 0.2~0.5%.

Preferably, alkali swelling type thickening material is the multipolymer of acrylate and methacrylic ester.

Preferably, dispersion agent is at least one in tripoly phosphate sodium STPP, sodium polyacrylate, polycarboxylate sodium.

Preferably, defoamer is polymethyl siloxane.

Preferably, solvent is at least one in water, ethylene glycol.

Preferably, pH adjusting agent is at least one in sodium hydroxide, ammoniacal liquor.

The preparation method of above-mentioned crystallite dry granular caking agent, comprises the following steps:

1) alkali swelling type thickening material is dissolved in partial solvent, stirs;

2) continue to add dispersion agent, polymethyl siloxane, stir;

3) adding pH adjusting agent regulation system pH value is 8.0~9.0;

4) add wilkinite, residual solvent, stir, obtain crystallite dry granular caking agent.

The using method of above-mentioned crystallite dry granular caking agent, comprises the following steps: crystallite dry granular is mixed with crystallite dry granular caking agent, impose on billet surface.

Preferably, the granular size of crystallite dry granular is 100~250 orders.

Preferably, mixed crystallite dry granular is drenched and imposes on billet surface.In production, in the mode of drenching glaze, mixed crystallite dry granular is drenched on the surface of base substrate, viscosity can require to regulate according to glaze pouring.

The invention has the beneficial effects as follows:

Crystallite dry granular caking agent of the present invention is applicable to the crystallite dry granular that particle is less (100~250 order), in the process of preparing crystallite brick, avoid crystallite dry granular to be sucked away by the lower negative pressure of kiln preheating zone because particle is too little, thereby avoided crystallite brick surface to occur the flaws such as a large amount of pin holes and bubble.

Crystallite dry granular caking agent of the present invention has solved suspension, stability and the flowability problem of crystallite dry granular.Use after crystallite dry granular caking agent of the present invention, crystallite dry granular can reach 60% above solid content, and flow velocity, lower than 50s(30 ℃, is coated with-4 glasss), suspension, stability and good fluidity, lasting use there will not be bubble.

Crystallite dry granular caking agent of the present invention is only produced by the mode of simple mix and blend, only needs at normal temperatures and pressures to stir for 1~2 hour to complete whole preparation process, and production unit and technique are fairly simple, meet the requirement of current energy-saving and emission-reduction.

Embodiment

Below in conjunction with specific embodiment, the present invention is further illustrated, but do not limit to so.

Per-cent used in embodiment, if no special instructions, is mass percent.

embodiment 1

The component of every 100kg crystallite dry granular caking agent: alkali swelling type thickening material (U.S. Rhom and Hass, model ASE-60) 3.4kg, (wilkinite and water are mixed to form 6% wilkinite hydrogel, wherein wilkinite mass concentration is 6%, lower same) 25kg, tripoly phosphate sodium STPP 1.0kg, polymethyl siloxane 0.4kg, by 30% NaOH aqueous solution regulation system pH value to 8.0, surplus is water.

The preparation method of above-mentioned crystallite dry granular caking agent, comprises the following steps: 1), by soluble in water alkali swelling type thickening material, stir; 2) continue to add tripoly phosphate sodium STPP, polymethyl siloxane, stir; 3) adding 30% NaOH aqueous solution regulation system pH value is 8.0; 4) add wilkinite hydrogel, stir, obtain crystallite dry granular caking agent, surveying its flow velocity is 16.8s(30 ℃, is coated with-4 glasss).

By 600g crystallite dry granular, (Guangdong Dowstone Technologies Co., Ltd. provides, granular size is 100~250 orders, lower same) add in the above-mentioned crystallite dry granular of 400g caking agent, mix, obtain crystallite dry granular suspension, it does not have macroscopic bubble, recording its flow velocity is 46.5s(30 ℃, is coated with-4 glasss), standing one week also without precipitation, visible, crystallite dry granular caking agent good stability of the present invention.

Above-mentioned crystallite dry granular suspension is drenched to the surface at base substrate in the mode of drenching glaze, the thickness of controlling billet surface crystallite dry granular suspension is 2.5mm, in kiln after 1150~1230 ℃ of calcination 1.5h, and polishing, obtain crystallite brick finished product, finished product is without macroscopic bubble and pin hole.

embodiment 2

The component of every 100kg crystallite dry granular caking agent: alkali swelling type thickening material (U.S. Rhom and Hass, model ASE-60) 2.7kg, 6% wilkinite hydrogel 30kg, sodium polyacrylate 1.7kg, polymethyl siloxane 0.2kg, ethylene glycol 5kg, by ammonia soln (28% mass concentration) regulation system pH value to 8.5, surplus is water.

The preparation method of above-mentioned crystallite dry granular caking agent, comprises the following steps: 1) alkali swelling type thickening material, ethylene glycol, water are mixed, stir; 2) continue to add sodium polyacrylate, polymethyl siloxane, stir; 3) adding ammonia soln regulation system pH value is 8.5; 4) add wilkinite hydrogel, stir, obtain crystallite dry granular caking agent, gained crystallite dry granular caking agent flow velocity is 18.5s(30 ℃, is coated with-4 glasss).

600g crystallite dry granular is added in 400g crystallite dry granular caking agent, mix, obtain crystallite dry granular suspension, it does not have macroscopic bubble, and recording its flow velocity is 49.5s(30 ℃, is coated with-4 glasss), standing one week also without precipitation, visible, crystallite dry granular caking agent good stability of the present invention.

Above-mentioned crystallite dry granular suspension is drenched to the surface at base substrate in the mode of drenching glaze, the thickness of controlling billet surface crystallite dry granular suspension is 2mm, in kiln after 1150~1230 ℃ of calcination 1h, and polishing, obtain crystallite brick finished product, finished product is without macroscopic bubble and pin hole.

embodiment 3

The component of every 100kg crystallite dry granular caking agent: alkali swelling type thickening material (U.S. Rhom and Hass, model ASE-60) 3.6kg, 6% wilkinite hydrogel 20kg, polycarboxylate sodium 2.2kg, polymethyl siloxane 0.5kg, ethylene glycol 4kg, by 30% NaOH aqueous solution regulation system pH value to 9.0, surplus is water.

The preparation method of above-mentioned crystallite dry granular caking agent, comprises the following steps: 1) alkali swelling type thickening material, ethylene glycol, water are mixed, stir; 2) continue to add polycarboxylate sodium, polymethyl siloxane, stir; 3) adding 30% NaOH aqueous solution regulation system pH value is 9.0; 4) add wilkinite hydrogel, stir, obtain crystallite dry granular caking agent, gained crystallite dry granular caking agent flow velocity is 17.0s(30 ℃, is coated with-4 glasss).

600g crystallite dry granular is added in 400g crystallite dry granular caking agent, mix, obtain crystallite dry granular suspension, it does not have macroscopic bubble, and recording its flow velocity is 45.6s(30 ℃, is coated with-4 glasss), standing one week also without precipitation, visible, crystallite dry granular caking agent good stability of the present invention.

Above-mentioned crystallite dry granular suspension is drenched to the surface at base substrate in the mode of drenching glaze, the thickness of controlling billet surface crystallite dry granular suspension is 3mm, in kiln after 1150~1230 ℃ of calcination 2h, and polishing, obtain crystallite brick finished product, finished product is without macroscopic bubble and pin hole.

Claims (6)

1. a crystallite dry granular caking agent, by mass percentage, contain following component: alkali swelling type thickening material 2.7~3.6%, wilkinite 1.2~1.8%, auxiliary agent 1.4~2.7%, with the pH of pH adjusting agent regulation system be 8.0~9.0, surplus is solvent, wherein, auxiliary agent is dispersion agent, defoamer, and in system, the quality percentage composition of dispersion agent is 1.0~2.2%, the quality percentage composition of defoamer is 0.2~0.5%.
2. a kind of crystallite dry granular caking agent according to claim 1, is characterized in that: described alkali swelling type thickening material is the multipolymer of acrylate and methacrylic ester.
3. a kind of crystallite dry granular caking agent according to claim 1, is characterized in that: dispersion agent is at least one in tripoly phosphate sodium STPP, sodium polyacrylate, polycarboxylate sodium.
4. a kind of crystallite dry granular caking agent according to claim 1, is characterized in that: defoamer is polymethyl siloxane.
5. a kind of crystallite dry granular caking agent according to claim 1, is characterized in that: solvent is at least one in water, ethylene glycol.
6. a kind of crystallite dry granular caking agent according to claim 1, is characterized in that: pH adjusting agent is at least one in sodium hydroxide, ammoniacal liquor.
CN201210391860.3A 2012-10-16 2012-10-16 Microcrystal dry grain adhering agent CN102951928B (en)

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