CN112723907A - Formula and production method of high-tensile-strength plastering gypsum - Google Patents
Formula and production method of high-tensile-strength plastering gypsum Download PDFInfo
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- CN112723907A CN112723907A CN202110132930.2A CN202110132930A CN112723907A CN 112723907 A CN112723907 A CN 112723907A CN 202110132930 A CN202110132930 A CN 202110132930A CN 112723907 A CN112723907 A CN 112723907A
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- 239000010440 gypsum Substances 0.000 title claims abstract description 61
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000009472 formulation Methods 0.000 title claims description 5
- 239000000843 powder Substances 0.000 claims abstract description 27
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 21
- 229920001888 polyacrylic acid Polymers 0.000 claims abstract description 20
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- 210000002268 Wool Anatomy 0.000 claims abstract description 16
- 239000010425 asbestos Substances 0.000 claims abstract description 16
- 239000004927 clay Substances 0.000 claims abstract description 16
- 229910052570 clay Inorganic materials 0.000 claims abstract description 16
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000008213 purified water Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011325 microbead Substances 0.000 claims abstract description 6
- 229960003563 Calcium Carbonate Drugs 0.000 claims abstract description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 20
- 229960005069 Calcium Drugs 0.000 claims description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 16
- 239000011575 calcium Substances 0.000 claims description 16
- 229910052791 calcium Inorganic materials 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 239000002562 thickening agent Substances 0.000 claims description 15
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 239000004005 microsphere Substances 0.000 claims description 9
- 241000276489 Merlangius merlangus Species 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- 229920001732 Lignosulfonate Polymers 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- TWGUZEUZLCYTCG-UHFFFAOYSA-N Sodium fluorosilicate Chemical compound [Na+].[Na+].F[Si-2](F)(F)(F)(F)F TWGUZEUZLCYTCG-UHFFFAOYSA-N 0.000 claims description 4
- FQENQNTWSFEDLI-UHFFFAOYSA-J Tetrasodium pyrophosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 4
- 150000001720 carbohydrates Chemical class 0.000 claims description 4
- 235000014633 carbohydrates Nutrition 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 4
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- HDSBZMRLPLPFLQ-UHFFFAOYSA-N Propylene glycol alginate Chemical compound OC1C(O)C(OC)OC(C(O)=O)C1OC1C(O)C(O)C(C)C(C(=O)OCC(C)O)O1 HDSBZMRLPLPFLQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000770 propane-1,2-diol alginate Substances 0.000 claims description 3
- 235000010409 propane-1,2-diol alginate Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 8
- 239000004570 mortar (masonry) Substances 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000004566 building material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 230000001070 adhesive Effects 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B2111/40—Porous or lightweight materials
Abstract
The invention provides a formula and a production method of high-tensile-strength plastering gypsum, and relates to the technical field of building materials. The high-tensile-strength plastering gypsum comprises the following raw materials in parts by weight: 50-60 parts of gypsum powder, 30-35 parts of purified water, 2-3 parts of a tackifier, 10-13 parts of heavy calcium carbonate, 10-13 parts of slurried asbestos wool, 3-6 parts of vitrified micro-beads, 10-20 parts of clay powder, 20-25 parts of light aggregate, 30-35 parts of polyacrylic acid resin, 5-15 parts of nano ceramic hollow micro-beads and 2-6 parts of polyacrylamide. The mortar has the advantages that the mortar is added with the formed asbestos wool and the vitrified micro bubbles, so that the tensile strength and the heat insulation performance of the plastering gypsum can be improved, the easy flowability and the self-resistance strength of the mortar are improved through the vitrified micro bubbles, the cohesiveness among materials is improved by the tackifier and the clay powder, the polyacrylamide has high cohesiveness and good durability, the bonding performance and the stability of the plastering gypsum are improved, and the mortar is worthy of great popularization.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a formula and a production method of high-tensile-strength plastering gypsum.
Background
Along with the rapid development of market economy in China and the improvement of the quality level of life of people, people have higher and higher expectations for building decoration quality, in the construction of interior walls, the traditional cement mortar and mixed mortar have poor water retention during hydration and drying, large shrinkage rate, easy defects of hollowing, cracking, falling and the like of wall surfaces, slow setting and hardening, long decoration period and the like, are easy to occur when the construction is not standard, the on-site repair rate is higher, and the requirements of indoor plastering quality and construction period are more and more not met. The plastering gypsum is a novel plastering material, has the advantages of firm bonding with a base layer, no hollowing, no falling, micro-expansion in hydration, no cracking, convenient construction, early strength, quick hardening, fire resistance, heat preservation, sound insulation, self-regulation of indoor temperature, environmental protection and the like, and has high popularization and application values.
However, the plastering gypsum on the market at present has poor tensile strength and high setting rate, so that the plastering gypsum is not dominant in construction, has poor adhesion, sometimes generates powder falling, and even has too low adhesion to be used as a coating architectural decorative paint.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a formula and a production method of high-tensile-strength plastering gypsum, and solves the problems of poor tensile strength and poor adhesion of the plastering gypsum.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the formula of the high-tensile-strength plastering gypsum comprises the following raw materials in parts by weight: 50-60 parts of gypsum powder, 30-35 parts of purified water, 2-3 parts of a tackifier, 10-13 parts of washed sand, 10-13 parts of heavy calcium carbonate, 10-13 parts of slurried asbestos wool, 3-6 parts of vitrified micro-beads, 10-20 parts of clay powder, 20-25 parts of light aggregate, 30-35 parts of polyacrylic acid resin, 5-15 parts of nano ceramic hollow micro-beads, 2-6 parts of polyacrylamide and 4-8 parts of a thickening agent.
Preferably, the tackifier is rosin tackifying emulsion, the clay powder is hydrous silicate product, the light aggregate is fly ash ceramsite and shale ceramsite ground into balls, and the retarder is composed of sodium pyrophosphate, sodium fluosilicate, lignosulfonate, hydroxycarboxylic acid and salts thereof, polyol and derivatives thereof, sugar and carbohydrate.
Preferably, the thickening agent is carboxymethyl cellulose or propylene glycol alginate, and the heavy calcium is 800-000 meshes of heavy calcium carbonate.
Preferably, the plastering gypsum can also comprise 5-10 parts of retarder, and the retarder is lignosulfonate.
Preferably, the production method of the high-tensile-strength plastering gypsum comprises the following steps:
s1, pretreatment
Firstly, grinding and crushing light aggregate and heavy calcium respectively by using a grinder, then filtering the light aggregate by using a 500-600 mesh screen and filtering the heavy calcium by using a 1000-1200 mesh screen;
s2, primary mixing
Putting purified water, gypsum powder and coarse whiting into a high-speed stirrer, stirring at a rotating speed of 1500-1800 r/min for 18-22 min, then putting the tackifier, washed sand, pulped asbestos wool and vitrified micro bubbles into the high-speed stirrer, and continuously stirring at a rotating speed of 3000-4000 r/min for 25-30 min;
s3, secondary mixing
Sequentially putting the thickening agent, the nano ceramic hollow microspheres, the polyacrylamide and the polyacrylic acid resin into a high-speed stirrer, mixing with the solution obtained after primary mixing, continuously stirring for 10-15 min at a rotating speed of 8000-1200 r/min, simultaneously heating the interior of the high-speed stirrer by using an electric heating wire, improving the activity of chemical molecules in the polyacrylamide, the polyacrylic acid resin and the nano ceramic hollow microspheres, and adding the retarder into the high-speed stirrer for stirring together when the external temperature is higher;
s4. packaging
And standing the solution after the secondary mixing for 10-15 min, removing supernatant, and filtering the mixed solution after removing the supernatant by using a 10-20-mesh screen, thereby obtaining the plastering gypsum with high tensile strength.
(III) advantageous effects
The invention provides a formula and a production method of high-tensile-strength plastering gypsum. The method has the following beneficial effects:
1. the plastering gypsum has the advantages that the heavy calcium, the slurried asbestos wool and the vitrified micro bubbles are added into the plastering gypsum, wherein the heavy calcium ensures that a gypsum solution is not settled and is easy to disperse, and the plastering gypsum has good glossiness, and the slurried asbestos wool has good tensile strength, good heat insulation performance and corrosion resistance, so that the tensile strength and the heat insulation performance of the plastering gypsum can be improved, the slurried asbestos wool is not easy to burn, the plastering gypsum has certain fireproof performance, the easy flowability and the self-resistance strength of mortar are improved through the vitrified micro bubbles, and the material shrinkage rate is reduced.
2. According to the invention, the tackifier, the clay powder, the polyacrylic acid resin and the polyacrylamide are added into the plastering gypsum, wherein the tackifier of the rosin tackifying emulsion material and the clay powder of the hydrous silicate product increase the cohesiveness among the materials, the polyacrylic acid resin has a relatively large molecular weight, good chemical resistance, high polyacrylamide cohesiveness and good durability, so that the adhesive property and stability of the plastering gypsum are improved, the plastering gypsum cannot change color after long-term use, and the phenomenon of powder falling after the plastering gypsum is solidified is avoided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a formula of high-tensile-strength plastering gypsum, which comprises the following raw materials in parts by weight: 55 parts of gypsum powder, 35 parts of purified water, 2.5 parts of tackifier, 10 parts of washing sand, 10 parts of heavy calcium, 10 parts of slurried asbestos wool, 5 parts of vitrified micro bubbles, 15 parts of clay powder, 20 parts of light aggregate, 32 parts of polyacrylic acid resin, 10 parts of nano ceramic hollow micro bubbles, 5 parts of polyacrylamide and 5 parts of thickening agent.
The tackifier is rosin tackifying emulsion, the clay powder is a hydrous silicate product, the light aggregate is fly ash ceramsite and shale ceramsite ground into balls, the retarder consists of sodium pyrophosphate, sodium fluosilicate, lignosulfonate, hydroxycarboxylic acid and salts thereof, polyalcohol and derivatives thereof, sugar and carbohydrate, and the tackifier, clay powder, polyacrylic acid resin and polyacrylamide are added into the plastering gypsum, wherein the tackifier made of the rosin tackifying emulsion and the clay powder made of the hydrous silicate product increase the cohesiveness among the materials, the polyacrylic acid resin has a large relative molecular weight, good chemical resistance and high polyacrylamide cohesiveness and good durability, so that the adhesive property and stability of the plastering gypsum are improved, and the plastering gypsum cannot change color after long-term use.
The thickening agent is carboxymethyl cellulose or propylene glycol alginate, the coarse whiting is 800-mesh coarse whiting, the fluid characteristic of the plastering gypsum can be changed through the thickening agent, the viscosity is improved, and the sagging phenomenon is prevented.
The production method of the high-tensile-strength plastering gypsum comprises the following steps:
s1, pretreatment
Firstly, grinding and crushing light aggregate and heavy calcium respectively by using a grinder, then filtering the light aggregate by using a 500-mesh screen and filtering the heavy calcium by using a 1000-mesh screen;
s2, primary mixing
Putting purified water, gypsum powder and coarse whiting into a high-speed stirrer, stirring for 20min at the rotating speed of 1500r/min, then putting the tackifier, washed sand, pulped asbestos wool and vitrified micro bubbles into the high-speed stirrer, and continuously stirring for 30min at the rotating speed of 3500 r/min;
s3, secondary mixing
Sequentially putting the thickening agent, the nano ceramic hollow microspheres, the polyacrylamide and the polyacrylic acid resin into a high-speed stirrer, mixing the thickening agent, the nano ceramic hollow microspheres, the polyacrylamide and the polyacrylic acid resin with the solution after primary mixing, continuously stirring at the rotating speed of 1000r/min, and simultaneously heating the interior of the high-speed stirrer by using an electric heating wire to improve the activity of chemical molecules in the polyacrylamide, the polyacrylic acid resin and the nano ceramic hollow microspheres;
s4. packaging
And standing the solution after the secondary mixing for 10min, removing supernatant, and filtering the mixed solution after removing the supernatant by using a 10-mesh screen to obtain the plastering gypsum with high tensile strength.
Example two:
the embodiment of the invention provides a formula and a production method of high-tensile-strength plastering gypsum, which comprises the following raw materials in parts by weight: 50 parts of gypsum powder, 35 parts of purified water, 2.5 parts of tackifier, 13 parts of washing sand, 12 parts of heavy calcium, 12 parts of slurried asbestos wool, 5 parts of vitrified micro bubbles, 15 parts of clay powder, 25 parts of light aggregate, 35 parts of polyacrylic acid resin, 15 parts of nano ceramic hollow micro bubbles, 6 parts of polyacrylamide and 5 parts of thickener, wherein the heavy calcium, the slurried asbestos wool and the vitrified micro bubbles are added into the plastering gypsum, wherein the heavy calcium prevents a gypsum solution from settling and easily dispersing and has good glossiness, the slurried asbestos wool has good tensile strength and good heat insulation performance and corrosion resistance, so that the tensile strength and heat insulation performance of the plastering gypsum can be improved, the slurried asbestos wool is not easy to burn, the plastering gypsum has certain fireproof performance, the fluidity and self-resistance strength of the mortar are improved through the vitrified micro bubbles, and the material property shrinkage rate is reduced.
The tackifier is rosin tackifying emulsion, the clay powder is a hydrous silicate product, the light aggregate is fly ash ceramsite and shale ceramsite ground into balls, the retarder consists of sodium pyrophosphate, sodium fluosilicate, lignosulfonate, hydroxycarboxylic acid and salts thereof, polyalcohol and derivatives thereof, sugar and carbohydrate, and the tackifier, clay powder, polyacrylic acid resin and polyacrylamide are added into the plastering gypsum, wherein the tackifier made of the rosin tackifying emulsion and the clay powder made of the hydrous silicate product increase the cohesiveness among the materials, the polyacrylic acid resin has a large relative molecular weight, good chemical resistance and high polyacrylamide cohesiveness and good durability, so that the adhesive property and stability of the plastering gypsum are improved, and the plastering gypsum cannot change color after long-term use.
The thickening agent is carboxymethyl cellulose or propylene glycol algae protein acid ester, the coarse whiting is 1000-mesh coarse whiting, the fluid characteristic of the plastering gypsum can be changed through the thickening agent, the viscosity is improved, and the sagging phenomenon is prevented.
The plaster of plastering can also include 10 parts of retarder, the retarder is lignosulfonate, adds the retarder into high-speed mixer in the in-process that the secondary mixes, makes the retarder stir with the mixed solution in the high-speed mixer together, can prolong the rate of condensation of plaster of plastering through the retarder, can prevent when ambient temperature is higher that plaster of plastering from solidifying sooner, and is more convenient during the construction.
A production method of high-tensile-strength plastering gypsum comprises the following steps:
s1, pretreatment
Firstly, grinding and crushing light aggregate and heavy calcium respectively by using a grinder, then filtering the light aggregate by using a 500-mesh screen and filtering the heavy calcium by using a 1200-mesh screen;
s2, primary mixing
Putting purified water, gypsum powder and coarse whiting into a high-speed stirrer, stirring for 20min at the rotating speed of 1800r/min, then putting the tackifier, washed sand, pulped asbestos wool and vitrified micro bubbles into the high-speed stirrer, and continuously stirring for 25min at the rotating speed of 4000 r/min;
s3, secondary mixing
Sequentially putting the thickening agent, the nano ceramic hollow microspheres, the poly-acrylamide and the polyacrylic acid resin into a high-speed stirrer, mixing with the solution obtained after primary mixing, continuously stirring for 15min at the rotating speed of 1200r/min, and simultaneously heating the interior of the high-speed stirrer by using an electric heating wire to improve the activity of chemical molecules in the polyacrylamide, the polyacrylic acid resin and the nano ceramic hollow microspheres;
s4. packaging
And standing the solution after the secondary mixing for 15min, removing supernatant, and filtering the mixed solution after removing the supernatant by using a 12-mesh screen to obtain the plastering gypsum with high tensile strength.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The formula of the plastering gypsum with high tensile strength is characterized in that: the feed comprises the following raw materials in parts by weight: 50-60 parts of gypsum powder, 30-35 parts of purified water, 2-3 parts of a tackifier, 10-13 parts of washed sand, 10-13 parts of heavy calcium carbonate, 10-13 parts of slurried asbestos wool, 3-6 parts of vitrified micro-beads, 10-20 parts of clay powder, 20-25 parts of light aggregate, 30-35 parts of polyacrylic acid resin, 5-15 parts of nano ceramic hollow micro-beads, 2-6 parts of polyacrylamide and 4-8 parts of a thickening agent.
2. The formulation of high tensile strength plastering gypsum according to claim 1, wherein: the tackifier is rosin tackifying emulsion, the clay powder is hydrous silicate product, the light aggregate is fly ash ceramsite and shale ceramsite ground into balls, and the retarder is composed of sodium pyrophosphate, sodium fluosilicate, lignosulfonate, hydroxycarboxylic acid and salts thereof, polyalcohol and derivatives thereof, sugar and carbohydrate.
3. The formulation of high tensile strength plastering gypsum according to claim 1, wherein: the thickening agent is carboxymethyl cellulose or propylene glycol alginate, and the heavy calcium is 800-000 meshes of heavy calcium carbonate.
4. The formulation of high tensile strength plastering gypsum according to claim 1, wherein: the plastering gypsum can also comprise 5-10 parts of retarder, wherein the retarder is lignosulfonate.
5. The method for producing high tensile strength plastering gypsum according to claims 1 to 4, wherein: the method comprises the following steps:
s1, pretreatment
Firstly, grinding and crushing light aggregate and heavy calcium respectively by using a grinder, then filtering the light aggregate by using a 500-600 mesh screen and filtering the heavy calcium by using a 1000-1200 mesh screen;
s2, primary mixing
Putting purified water, gypsum powder and coarse whiting into a high-speed stirrer, stirring at a rotating speed of 1500-1800 r/min for 18-22 min, then putting the tackifier, washed sand, pulped asbestos wool and vitrified micro bubbles into the high-speed stirrer, and continuously stirring at a rotating speed of 3000-4000 r/min for 25-30 min;
s3, secondary mixing
Sequentially putting the thickening agent, the nano ceramic hollow microspheres, the polyacrylamide and the polyacrylic acid resin into a high-speed stirrer, mixing with the solution obtained after primary mixing, continuously stirring for 10-15 min at a rotating speed of 8000-1200 r/min, simultaneously heating the interior of the high-speed stirrer by using an electric heating wire, improving the activity of chemical molecules in the polyacrylamide, the polyacrylic acid resin and the nano ceramic hollow microspheres, and adding the retarder into the high-speed stirrer for stirring together when the external temperature is higher;
s4. packaging
And standing the solution after the secondary mixing for 10-15 min, removing supernatant, and filtering the mixed solution after removing the supernatant by using a 10-20-mesh screen, thereby obtaining the plastering gypsum with high tensile strength.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850773A (en) * | 2021-02-01 | 2021-05-28 | 贵州中亚高科涂料有限公司 | High-efficiency production method of high-purity semi-water desulfurization paste |
| CN114685135A (en) * | 2022-05-10 | 2022-07-01 | 江苏吉邦材料科技有限公司 | Light gypsum mortar with high coating rate |
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| US4664707A (en) * | 1985-04-09 | 1987-05-12 | Georgia-Pacific Corporation | Fire resistant gypsum composition |
| CN107399953A (en) * | 2017-08-22 | 2017-11-28 | 张升 | A kind of building gelatine powder |
| CN108191369A (en) * | 2018-02-07 | 2018-06-22 | 河北晨阳工贸集团有限公司 | A kind of plastering gupsum and preparation method thereof |
| CN108275959A (en) * | 2018-03-12 | 2018-07-13 | 太原理工大学 | A kind of cracking resistance plastering gupsum of high tenacity enhanced water resistance |
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2021
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| CN112850773A (en) * | 2021-02-01 | 2021-05-28 | 贵州中亚高科涂料有限公司 | High-efficiency production method of high-purity semi-water desulfurization paste |
| CN114685135A (en) * | 2022-05-10 | 2022-07-01 | 江苏吉邦材料科技有限公司 | Light gypsum mortar with high coating rate |
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