CN107162553A - A kind of brushing gypsum and preparation method thereof - Google Patents
A kind of brushing gypsum and preparation method thereof Download PDFInfo
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- CN107162553A CN107162553A CN201710589057.3A CN201710589057A CN107162553A CN 107162553 A CN107162553 A CN 107162553A CN 201710589057 A CN201710589057 A CN 201710589057A CN 107162553 A CN107162553 A CN 107162553A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Abstract
The invention discloses a kind of brushing gypsum and preparation method thereof, it is related to gypsum technical field, includes the raw material of following part meter:45 ~ 65 parts of 55 ~ 65 parts of desulfurated plaster, 40 ~ 42 parts of modified rubber powder, 34 ~ 36 parts of cement, 24 ~ 26 parts of atoleine, 20 ~ 22 parts of modification infusorial earth, 18 ~ 20 parts of mineral admixture, 14 ~ 16 parts of manganese slag, 10 ~ 14 parts of auxiliary agent and water.The present invention and the cohesive force of base course wall are strong, and coating does not ftracture, difficult for drop-off, easy construction.
Description
Technical field
The present invention relates to gypsum technical field, and in particular to a kind of brushing gypsum and preparation method thereof.
Background technology
In recent years, for the level requirements of building interior decoration, appearance requirement, environmental requirement more and more higher, so
It is required that interior material has a harmless environmental protection characteristic, and brushing gypsum is inorganic material, nontoxic fireproof environmental, and its is main
Gypsum for the various metopes of Indoor environment and ceiling plastering, and brushing gypsum is containing 2 crystallizations water, in the external world in itself
Moisture all can be enough discharged when environmental drying, it is possible to the humidity in regulation room, and with fire prevention effect.But, it is existing
The cohesive force of some brushing gypsum and base course wall is poor, and constructing operation is cumbersome.
The content of the invention
It is an object of the invention to provide a kind of brushing gypsum and preparation method thereof, the cohesive force with base course wall is strong, coating
Do not ftracture, difficult for drop-off, easy construction.
The invention provides following technical scheme:A kind of brushing gypsum, includes the raw material of following part meter:Desulfurated plaster 55
~ 65 parts, 40 ~ 42 parts of modified rubber powder, 34 ~ 36 parts of cement, 24 ~ 26 parts of atoleine, 20 ~ 22 parts of modification infusorial earth, mineral mix
Close 45 ~ 65 parts of 18 ~ 20 parts of material, 14 ~ 16 parts of manganese slag, 10 ~ 14 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:24 ~ 26 parts of rubber powder, 20 ~ 21 parts of VTES,
15 ~ 16 parts of 17 ~ 18 parts of hydroxy-ethyl acrylate, 10 ~ 13 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:2 ~ 3 parts of exciting agent, 2 ~ 3 parts of water-loss reducer, 1 ~ 2 part of binding agent, water reducer 1 ~ 2
0.4 ~ 0.6 part of part, 1 ~ 2 part of retarder, 0.8 ~ 1.2 part of antimitotic agent and hydrophober.
Wherein, semi-hydrated gypsum of the desulfurated plaster for the waste residue produced by after means of flue gas desulfurization of power plant Jing Guo calcining,
The average grain diameter of the desulfurated plaster is 0.035 ~ 0.075mm.
Wherein, the rubber powder is crushed by junked tire and is made, and granularity is 300 ~ 400 mesh.
Wherein, the cement is the one or more of Portland cement, sulphate aluminium cement and slag cements.
Wherein, the preparation method of the modification infusorial earth is:The sodium chloride solution of mass concentration 30% and diatomite are pressed
According to 2 ~ 3:1 ratio is mixed, and is stirred under 200 ~ 300r/min speed conditions, is filtered, is dried the modified diatom is made
Soil.
Wherein, the water-loss reducer is one kind in methyl cellulose ether, TYLOSE 30000 and hydroxyethyl ether cellulose
Or it is several, the binding agent is polyvinyl alcohol, and the water reducer is Amino-sulfonic Acid-based Water-reducer.
Wherein, the exciting agent includes the raw material that following part is counted:1 ~ 2 part of nano zine oxide, Potassium aluminum sulfate dodecahydrate 0.6 ~
0.2 ~ 0.4 part of 0.8 part, 0.4 ~ 0.6 part of aluminum sulfate and sodium metasilicate, the retarder are sodium tripolyphosphate, citric acid and citric acid
One or more in sodium, the antimitotic agent is lignocellulosic, and the hydrophober is organosilicon moisture repellent.
Wherein, the mineral admixture is the one or more in flyash, miberal powder and silicon ash.
The present invention provides a kind of preparation method of brushing gypsum, comprises the following steps:
(1), prepare oxidation sweetening gypsum
Desulfurated plaster is weighed, 55 ~ 85 mesh sieves are crossed after crushing, are put into 0.5 ~ 1mol/L hydrochloric acid solution, with 250 ~ 300r/min
Speed conditions stir 20 ~ 30min, stand 20 ~ 25min, be filtrated to get after filter residue, drying and processing obtain desulfurated plaster mixing
Thing;
Desulfurated plaster mixture is put into cyclone separator and purified, setting speed is 200~300r/min, is put into and forges after taking-up
Burn in stove, under 200~300 DEG C of temperature conditionss, calcine 1 ~ 2h, obtain oxidation sweetening gypsum, it is standby;
(2), prepare modified rubber powder
VTES, hydroxy-ethyl acrylate, potassium peroxydisulfate and water are weighed according to proportioning, it is well mixed to obtain rubber
Powder modifying agent, rubber powder modifier is heated, and heating and temperature control is 40 ~ 42 DEG C, and heat time control is 25 ~ 30min,
Then rubber powder is added into rubber powder modifier, it is soaked rubber powder, 3 ~ 5h is stirred with 100 ~ 200r/min rotating speed, is done
Modified rubber powder is obtained after dry;
(3), according to proportioning weigh surplus stock successively, be put into mixer, 40 ~ 50min stirred with 300 ~ 500r/min rotating speed,
Then step is added(1)Oxidation sweetening gypsum and step(2)Modified rubber powder, with 200 ~ 300r/min rotating speed stirring 1 ~
2h, obtains the brushing gypsum.
Beneficial effects of the present invention:Cohesive force with base course wall is strong, and coating does not ftracture, difficult for drop-off, easy construction, tool
Body is as follows:
(1), the present invention oxidation sweetening gypsum is prepared using desulfurated plaster in the feed, improve cohesive force and heat-insulating property, together
When enhance its stability, the cohesive force of obtained brushing gypsum and base course wall is strong, in construction, only need to be by the powder of the present invention
Brush gypsum is directly criticized and scraped in the outer surface of construction wall, and construction is simple, condenses fast, the construction period can shorten 60% or so;
(2), the present invention add flyash in the feed, it possesses the particle characteristics being equal with glass microballoon, plays increase system
Mobility and improve compaction rate effect;One kind in sodium tripolyphosphate, citric acid and sodium citrate is added in the feed
Or it is several as retarder, overall rupture strength and compression strength can be improved;Methyl cellulose ether, carboxylic are added in the feed
It is one or more of as water-loss reducer in methyl cellulose ether and hydroxyethyl ether cellulose, improve the overall water-retaining property of gypsum
Denseness and anti-vertical fluidity, can be enhanced, water retention is 93~95%, will not be not enough because of early hydration, produces drying shrinkage slight crack
Phenomenon;
(3), the present invention add organosilicon moisture repellent in the feed, for play a part of reduce brushing gypsum water absorption rate, improve
Its water resistance;Addition lignocellulosic is as antimitotic agent in the feed, for strengthening shear bond strength;
(4), the present invention in the feed add manganese slag, be cellular structures, be manganeisen and manganese alloy smelting process
High temperature clinker is formed through water quenching cooling, with the architectural feature similar to glass bead, light weight, porous, nature of glass shell, and
Containing a large amount of closed pore structures, insulation effect is played;
(5), the present invention add modified rubber powder in the feed, play a part of reduce cement slurry consumption, with the second of vinyl three
TMOS, hydroxy-ethyl acrylate, potassium peroxydisulfate and water as modifying agent to modifying rubber powder processing, for strengthen rubber powder with
Caking property between remaining raw material, obtained modified rubber powder is added in gypsum entirety, can not only improve toughness and anti-impact
Hitting property, but also anti-contracility, freeze-thaw resistance and adhesion strength can be improved;
(6), the present invention add exciting agent in the feed, can fully improve overall early hydration speed, be effectively improved raw material it
Between interracial contact situation, improve interface binding power, improve hardenite intensity.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1
A kind of brushing gypsum, includes the raw material of following part meter:55 parts of desulfurated plaster, 40 parts of modified rubber powder, 34 parts of cement, liquid
45 parts of 24 parts of paraffin, 20 parts of modification infusorial earth, 18 parts of mineral admixture, 14 parts of manganese slag, 10 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:24 parts of rubber powder, 20 parts of VTES, acrylic acid
15 parts of 17 parts of hydroxyl ethyl ester, 10 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:2 parts of exciting agent, 2 parts of water-loss reducer, 1 part of binding agent, 1 part of water reducer, retarder
0.4 part of 1 part, 0.8 part of antimitotic agent and hydrophober.
Wherein, semi-hydrated gypsum of the desulfurated plaster for the waste residue produced by after means of flue gas desulfurization of power plant Jing Guo calcining,
The average grain diameter of the desulfurated plaster is 0.035mm.
Wherein, the rubber powder is crushed by junked tire and is made, and granularity is 300 mesh.
Wherein, the cement is Portland cement.
Wherein, the preparation method of the modification infusorial earth is:The sodium chloride solution of mass concentration 30% and diatomite are pressed
According to 2:1 ratio is mixed, and is stirred under 200r/min speed conditions, is filtered, is dried the modification infusorial earth is made.
Wherein, the water-loss reducer is methyl cellulose ether, and the binding agent is polyvinyl alcohol, and the water reducer is amino sulphur
Hydrochlorate series high-efficiency water-reducing agent.
Wherein, the exciting agent includes the raw material that following part is counted:1 part of nano zine oxide, 0.6 part of Potassium aluminum sulfate dodecahydrate,
0.2 part of 0.4 part of aluminum sulfate and sodium metasilicate, the retarder are sodium tripolyphosphate, and the antimitotic agent is lignocellulosic, described to hate
Aqua is organosilicon moisture repellent.
Wherein, the mineral admixture is flyash.
A kind of preparation method of brushing gypsum is provided in the present embodiment, comprised the following steps:
(1), prepare oxidation sweetening gypsum
Desulfurated plaster is weighed, 55 mesh sieves are crossed after crushing, are put into 0.5mol/L hydrochloric acid solution, with 250r/min speed conditions
20min is stirred, 20min is stood, is filtrated to get after filter residue, drying and processing and obtains desulfurated plaster mixture;
Desulfurated plaster mixture is put into cyclone separator and purified, setting speed is to be put into calcining furnace after 200r/min, taking-up
In, under 200 DEG C of temperature conditionss, 1h is calcined, oxidation sweetening gypsum is obtained, it is standby;
(2), prepare modified rubber powder
VTES, hydroxy-ethyl acrylate, potassium peroxydisulfate and water are weighed according to proportioning, it is well mixed to obtain rubber
Powder modifying agent, rubber powder modifier is heated, and heating and temperature control is 40 DEG C, and heat time control is 25min, Ran Houxiang
Rubber powder is added in rubber powder modifier, it is soaked rubber powder, 3h is stirred with 100r/min rotating speed, is modified after drying
Rubber powder;
(3), according to proportioning weigh surplus stock successively, be put into mixer, 40min, Ran Houjia stirred with 300r/min rotating speed
Enter step(1)Oxidation sweetening gypsum and step(2)Modified rubber powder, 1h is stirred with 200r/min rotating speed, obtains described
Brushing gypsum.
Embodiment 2
A kind of brushing gypsum, includes the raw material of following part meter:65 parts of desulfurated plaster, 42 parts of modified rubber powder, 36 parts of cement, liquid
65 parts of 26 parts of paraffin, 22 parts of modification infusorial earth, 20 parts of mineral admixture, 16 parts of manganese slag, 14 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:26 parts of rubber powder, 21 parts of VTES, acrylic acid
16 parts of 18 parts of hydroxyl ethyl ester, 13 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:3 parts of exciting agent, 3 parts of water-loss reducer, 2 parts of binding agent, 2 parts of water reducer, retarder
0.6 part of 2 parts, 1.2 parts of antimitotic agent and hydrophober.
Wherein, semi-hydrated gypsum of the desulfurated plaster for the waste residue produced by after means of flue gas desulfurization of power plant Jing Guo calcining,
The average grain diameter of the desulfurated plaster is 0.075mm.
Wherein, the rubber powder is crushed by junked tire and is made, and granularity is 400 mesh.
Wherein, the cement is sulphate aluminium cement.
Wherein, the preparation method of the modification infusorial earth is:The sodium chloride solution of mass concentration 30% and diatomite are pressed
According to 3:1 ratio is mixed, and is stirred under 300r/min speed conditions, is filtered, is dried the modification infusorial earth is made.
Wherein, the water-loss reducer is TYLOSE 30000, and the binding agent is polyvinyl alcohol, and the water reducer is amino
Sulfonate series high-efficiency water-reducing agent.
Wherein, the exciting agent includes the raw material that following part is counted:2 parts of nano zine oxide, 0.8 part of Potassium aluminum sulfate dodecahydrate,
0.4 part of 0.6 part of aluminum sulfate and sodium metasilicate, the retarder are citric acid, and the antimitotic agent is lignocellulosic, the hydrophober
For organosilicon moisture repellent.
Wherein, the mineral admixture is miberal powder.
A kind of preparation method of brushing gypsum is provided in the present embodiment, comprised the following steps:
(1), prepare oxidation sweetening gypsum
Desulfurated plaster is weighed, 85 mesh sieves are crossed after crushing, is put into 1mol/L hydrochloric acid solution, is stirred with 300r/min speed conditions
30min is mixed, 25min is stood, is filtrated to get after filter residue, drying and processing and obtains desulfurated plaster mixture;
Desulfurated plaster mixture is put into cyclone separator and purified, setting speed is to be put into calcining furnace after 300r/min, taking-up
In, under 300 DEG C of temperature conditionss, 2h is calcined, oxidation sweetening gypsum is obtained, it is standby;
(2), prepare modified rubber powder
VTES, hydroxy-ethyl acrylate, potassium peroxydisulfate and water are weighed according to proportioning, it is well mixed to obtain rubber
Powder modifying agent, rubber powder modifier is heated, and heating and temperature control is 42 DEG C, and heat time control is 30min, Ran Houxiang
Rubber powder is added in rubber powder modifier, it is soaked rubber powder, 5h is stirred with 200r/min rotating speed, is modified after drying
Rubber powder;
(3), according to proportioning weigh surplus stock successively, be put into mixer, 50min, Ran Houjia stirred with 500r/min rotating speed
Enter step(1)Oxidation sweetening gypsum and step(2)Modified rubber powder, 2h is stirred with 300r/min rotating speed, obtains described
Brushing gypsum.
Embodiment 3
A kind of brushing gypsum, includes the raw material of following part meter:60 parts of desulfurated plaster, 41 parts of modified rubber powder, 35 parts of cement, liquid
55 parts of 25 parts of paraffin, 21 parts of modification infusorial earth, 19 parts of mineral admixture, 15 parts of manganese slag, 12 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:24 ~ 26 parts of rubber powder, 20 ~ 21 parts of VTES,
15.5 parts of 17.5 parts of hydroxy-ethyl acrylate, 11.5 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:2.5 parts of exciting agent, 2.5 parts of water-loss reducer, 1.5 parts of binding agent, water reducer 1.5
Part, 1.5 parts of retarder, 1 part of antimitotic agent and 0.5 part of hydrophober.
Wherein, semi-hydrated gypsum of the desulfurated plaster for the waste residue produced by after means of flue gas desulfurization of power plant Jing Guo calcining,
The average grain diameter of the desulfurated plaster is 0.05mm.
Wherein, the rubber powder is crushed by junked tire and is made, and granularity is 350 mesh.
Wherein, the cement is slag cements.
Wherein, the preparation method of the modification infusorial earth is:The sodium chloride solution of mass concentration 30% and diatomite are pressed
According to 3:1 ratio is mixed, and is stirred under 250r/min speed conditions, is filtered, is dried the modification infusorial earth is made.
Wherein, the water-loss reducer is hydroxyethyl ether cellulose, and the binding agent is polyvinyl alcohol, and the water reducer is amino
Sulfonate series high-efficiency water-reducing agent.
Wherein, the exciting agent includes the raw material that following part is counted:1.5 parts of nano zine oxide, Potassium aluminum sulfate dodecahydrate 0.7
0.3 part of part, 0.5 part of aluminum sulfate and sodium metasilicate, the retarder are sodium citrate, and the antimitotic agent is lignocellulosic, described
Hydrophober is organosilicon moisture repellent.
Wherein, the mineral admixture is silicon ash.
A kind of preparation method of brushing gypsum is provided in the present embodiment, comprised the following steps:
(1), prepare oxidation sweetening gypsum
Desulfurated plaster is weighed, 75 mesh sieves are crossed after crushing, are put into 0.8mol/L hydrochloric acid solution, with 275r/min speed conditions
25min is stirred, 23min is stood, is filtrated to get after filter residue, drying and processing and obtains desulfurated plaster mixture;
Desulfurated plaster mixture is put into cyclone separator and purified, setting speed is to be put into calcining furnace after 250r/min, taking-up
In, under 250 DEG C of temperature conditionss, 1.5h is calcined, oxidation sweetening gypsum is obtained, it is standby;
(2), prepare modified rubber powder
VTES, hydroxy-ethyl acrylate, potassium peroxydisulfate and water are weighed according to proportioning, it is well mixed to obtain rubber
Powder modifying agent, rubber powder modifier is heated, and heating and temperature control is 41 DEG C, and heat time control is 26min, Ran Houxiang
Rubber powder is added in rubber powder modifier, it is soaked rubber powder, 4h is stirred with 110r/min rotating speed, is modified after drying
Rubber powder;
(3), according to proportioning weigh surplus stock successively, be put into mixer, 45min, Ran Houjia stirred with 400r/min rotating speed
Enter step(1)Oxidation sweetening gypsum and step(2)Modified rubber powder, 1.5h is stirred with 250r/min rotating speed, institute is obtained
State brushing gypsum.
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, its according to
The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced
Change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention
Protection domain within.
Claims (10)
1. a kind of brushing gypsum, it is characterised in that the raw material counted including following part:55 ~ 65 parts of desulfurated plaster, modified rubber powder 40
~ 42 parts, 34 ~ 36 parts of cement, 24 ~ 26 parts of atoleine, 20 ~ 22 parts of modification infusorial earth, 18 ~ 20 parts of mineral admixture, manganese slag 14 ~
45 ~ 65 parts of 16 parts, 10 ~ 14 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:24 ~ 26 parts of rubber powder, 20 ~ 21 parts of VTES,
15 ~ 16 parts of 17 ~ 18 parts of hydroxy-ethyl acrylate, 10 ~ 13 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:2 ~ 3 parts of exciting agent, 2 ~ 3 parts of water-loss reducer, 1 ~ 2 part of binding agent, water reducer 1 ~ 2
0.4 ~ 0.6 part of part, 1 ~ 2 part of retarder, 0.8 ~ 1.2 part of antimitotic agent and hydrophober.
2. brushing gypsum according to claim 1, it is characterised in that the raw material counted including following part:60 parts of desulfurated plaster,
41 parts of modified rubber powder, 35 parts of cement, 25 parts of atoleine, 21 parts of modification infusorial earth, 19 parts of mineral admixture, 15 parts of manganese slag,
55 parts of 12 parts of auxiliary agent and water;
The modified rubber powder includes the raw material that following part is counted:25 parts of rubber powder, 20.5 parts of VTES, propylene
15.5 parts of sour 17.5 parts of hydroxyl ethyl ester, 11.5 parts of potassium peroxydisulfate and water;
The auxiliary agent includes the raw material that following part is counted:2.5 parts of exciting agent, 2.5 parts of water-loss reducer, 1.5 parts of binding agent, water reducer 1.5
Part, 1.5 parts of retarder, 1 part of antimitotic agent and 0.5 part of hydrophober.
3. brushing gypsum according to claim 1, it is characterised in that the desulfurated plaster after means of flue gas desulfurization of power plant by producing
Semi-hydrated gypsum of the raw waste residue Jing Guo calcining, the average grain diameter of the desulfurated plaster is 0.035 ~ 0.075mm.
4. brushing gypsum according to claim 1, it is characterised in that the rubber powder is crushed by junked tire and is made, grain
Spend for 300 ~ 400 mesh.
5. brushing gypsum according to claim 1, it is characterised in that the cement is Portland cement, sulphur aluminic acid
The one or more of salt cement and slag cements.
6. brushing gypsum according to claim 1, it is characterised in that the preparation method of the modification infusorial earth is:By matter
The sodium chloride solution and diatomite of concentration 30% are measured according to 2 ~ 3:1 ratio is mixed, and is stirred under 200 ~ 300r/min speed conditions
Uniformly, filter, the modification infusorial earth is made in drying.
7. brushing gypsum according to claim 1, it is characterised in that the water-loss reducer is methyl cellulose ether, carboxymethyl
One or more in cellulose ether and hydroxyethyl ether cellulose, the binding agent is polyvinyl alcohol, and the water reducer is amino
Sulfonate series high-efficiency water-reducing agent.
8. brushing gypsum according to claim 1, it is characterised in that the exciting agent includes the raw material that following part is counted:Receive
0.2 ~ 0.4 part of 1 ~ 2 part of zinc oxide of rice, 0.6 ~ 0.8 part of Potassium aluminum sulfate dodecahydrate, 0.4 ~ 0.6 part of aluminum sulfate and sodium metasilicate, it is described slow
Solidifying agent is the one or more in sodium tripolyphosphate, citric acid and sodium citrate, and the antimitotic agent is lignocellulosic, described to hate
Aqua is organosilicon moisture repellent.
9. brushing gypsum according to claim 1, it is characterised in that the mineral admixture is flyash, miberal powder and silicon
One or more in ash.
10. the preparation method of a kind of brushing gypsum according to any one of claim 1 ~ 9, it is characterised in that including as follows
Step:
(1), prepare oxidation sweetening gypsum
Desulfurated plaster is weighed, 55 ~ 85 mesh sieves are crossed after crushing, are put into 0.5 ~ 1mol/L hydrochloric acid solution, with 250 ~ 300r/min
Speed conditions stir 20 ~ 30min, stand 20 ~ 25min, be filtrated to get after filter residue, drying and processing obtain desulfurated plaster mixing
Thing;
Desulfurated plaster mixture is put into cyclone separator and purified, setting speed is 200~300r/min, is put into and forges after taking-up
Burn in stove, under 200~300 DEG C of temperature conditionss, calcine 1 ~ 2h, obtain oxidation sweetening gypsum, it is standby;
(2), prepare modified rubber powder
VTES, hydroxy-ethyl acrylate, potassium peroxydisulfate and water are weighed according to proportioning, it is well mixed to obtain rubber
Powder modifying agent, rubber powder modifier is heated, and heating and temperature control is 40 ~ 42 DEG C, and heat time control is 25 ~ 30min,
Then rubber powder is added into rubber powder modifier, it is soaked rubber powder, 3 ~ 5h is stirred with 100 ~ 200r/min rotating speed, is done
Modified rubber powder is obtained after dry;
(3), according to proportioning weigh surplus stock successively, be put into mixer, 40 ~ 50min stirred with 300 ~ 500r/min rotating speed,
Then step is added(1)Oxidation sweetening gypsum and step(2)Modified rubber powder, with 200 ~ 300r/min rotating speed stirring 1 ~
2h, obtains the brushing gypsum.
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CN108264318A (en) * | 2018-01-24 | 2018-07-10 | 合肥市大卓电力有限责任公司 | A kind of waterproof brushing gypsum and preparation method thereof |
CN108314460A (en) * | 2018-02-05 | 2018-07-24 | 合肥峰腾节能科技有限公司 | A kind of moisture-proof wallboard of antibacterial and preparation method thereof |
CN109553350A (en) * | 2018-12-24 | 2019-04-02 | 海门市帕源道路工程材料有限公司 | A kind of concrete and preparation method thereof |
CN109665794A (en) * | 2018-12-29 | 2019-04-23 | 泰山石膏有限公司 | A kind of heavy desulfurization plastering gupsum |
CN110759697A (en) * | 2019-11-29 | 2020-02-07 | 江苏省苏安能节能建材科技有限公司 | Gypsum mortar and preparation method thereof |
CN113943124A (en) * | 2021-11-29 | 2022-01-18 | 四川大学 | Waste rubber powder modified acrylic acid waterproof agent, gypsum material and preparation method thereof |
CN114853439A (en) * | 2022-06-01 | 2022-08-05 | 瓮福(集团)有限责任公司 | Phosphogypsum-based fireproof door core board and preparation process thereof |
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CN108264318A (en) * | 2018-01-24 | 2018-07-10 | 合肥市大卓电力有限责任公司 | A kind of waterproof brushing gypsum and preparation method thereof |
CN108314460A (en) * | 2018-02-05 | 2018-07-24 | 合肥峰腾节能科技有限公司 | A kind of moisture-proof wallboard of antibacterial and preparation method thereof |
CN109553350A (en) * | 2018-12-24 | 2019-04-02 | 海门市帕源道路工程材料有限公司 | A kind of concrete and preparation method thereof |
CN109665794A (en) * | 2018-12-29 | 2019-04-23 | 泰山石膏有限公司 | A kind of heavy desulfurization plastering gupsum |
CN109665794B (en) * | 2018-12-29 | 2021-12-24 | 泰山石膏有限公司 | Heavy desulfurization plastering gypsum |
CN110759697A (en) * | 2019-11-29 | 2020-02-07 | 江苏省苏安能节能建材科技有限公司 | Gypsum mortar and preparation method thereof |
CN110759697B (en) * | 2019-11-29 | 2021-11-30 | 江苏省苏安能节能建材科技有限公司 | Gypsum mortar and preparation method thereof |
CN113943124A (en) * | 2021-11-29 | 2022-01-18 | 四川大学 | Waste rubber powder modified acrylic acid waterproof agent, gypsum material and preparation method thereof |
CN114853439A (en) * | 2022-06-01 | 2022-08-05 | 瓮福(集团)有限责任公司 | Phosphogypsum-based fireproof door core board and preparation process thereof |
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Application publication date: 20170915 |