CN112374857A - Inorganic matter lock catch floor and preparation method thereof - Google Patents
Inorganic matter lock catch floor and preparation method thereof Download PDFInfo
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- CN112374857A CN112374857A CN202011370282.6A CN202011370282A CN112374857A CN 112374857 A CN112374857 A CN 112374857A CN 202011370282 A CN202011370282 A CN 202011370282A CN 112374857 A CN112374857 A CN 112374857A
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- 238000002360 preparation method Methods 0.000 title claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 14
- 230000004048 modification Effects 0.000 claims abstract description 12
- 238000012986 modification Methods 0.000 claims abstract description 12
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 11
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 11
- 229920002472 Starch Polymers 0.000 claims abstract description 10
- 239000008107 starch Substances 0.000 claims abstract description 10
- 235000019698 starch Nutrition 0.000 claims abstract description 10
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013538 functional additive Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 35
- 239000002002 slurry Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 30
- 238000001723 curing Methods 0.000 claims description 25
- 238000012423 maintenance Methods 0.000 claims description 24
- 238000004321 preservation Methods 0.000 claims description 20
- 239000004744 fabric Substances 0.000 claims description 19
- 239000003365 glass fiber Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 238000013007 heat curing Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 238000009408 flooring Methods 0.000 claims 1
- 239000004568 cement Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- CENHPXAQKISCGD-UHFFFAOYSA-N trioxathietane 4,4-dioxide Chemical compound O=S1(=O)OOO1 CENHPXAQKISCGD-UHFFFAOYSA-N 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 3
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 108010081750 Reticulin Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002699 waste material Substances 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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0263—Hardening promoted by a rise in temperature
Abstract
The invention provides an inorganic lock catch floor which comprises the following components in parts by weight: 90-110 parts of light-burned magnesium oxide, 75-85 parts of magnesium sulfate solution, 8-13 parts of light plant fiber powder, and functional additives such as 1.0-1.3 parts of modification reinforcing agent, 0.5-1.0 part of water reducing agent, 0.2-0.3 part of starch ether, 0.2-0.4 part of cellulose ether and 0.6-1.0 part of defoaming agent.
Description
Technical Field
The invention relates to the technical field of inorganic floor production, in particular to an inorganic lock catch floor and a preparation method thereof.
Background
The latch floor is formed by compounding a decorative wear-resistant layer on the surface of a homogeneous plate and then mechanically grooving the side surface of the plate, and the homogeneous plate which can be used by the existing latch floor is mainly divided into three categories: 1. wood (density board, multilayer sandwich board, solid wood board) 2, plastic (stone plastic, wood plastic) 3, inorganic material (magnesium oxysulfate cement board, magnesium oxychloride cement board, silicate board), wherein wood and plastic are mature products in the market, but the two major products have corresponding performance bottlenecks: the wooden lock catch floor is easy to deform after being wetted, the formaldehyde content is easy to exceed the standard, and the fire-proof grade is lower; the plastic lock catch floor has low fire-proof grade, poor thermal stability, strong plastic feeling and long material degradation period, and is not beneficial to environmental protection.
Among the existing inorganic boards, the boards used for manufacturing lock catch floors are not mature: firstly, the poor stability of the moisture absorption and halogen return later period of the magnesium oxychloride cement board can be directly excluded because the content of chloride ions exceeds the standard; the silicate board cannot be reinforced by reticular fibers due to the production process, has hard material texture, large brittleness and poor toughness, so that the groove type damage rate of mechanical opening is high, and the silicate board cannot be applied to the lock catch floor in a mature way.
Because the production process of the prior magnesium oxysulfate cement sand light board has low refinement degree, the light board can only be used as a decoration base material, and the following problems can be hardly overcome if the light board is applied to a lock catch floor:
1. flatness and thickness uniformity: the lock catch floor has very high requirements on the flatness and thickness uniformity of a plate, the existing magnesium oxysulfate cement sanding plate is formed by compounding three kinds of slurry, the stress shrinkage generated by different slurry in the reaction process is different, and the flatness of the plate is difficult to be ensured to reach a very high level, and in addition, because the prior art is single-side sanding, the flatness of a template and the surface flaws are in a dynamic change in the production process, the flatness of the other surface of the plate close to the template is difficult to be ensured;
2. homogeneity and porosity: the latched floor has high requirements on the uniformity and the internal and surface hole control of the boards, because the sizes and the occurrence frequency of the holes can directly influence the yield of the latched floor in the process of compounding the facing and slotting, the boards in the prior art are compounded by three kinds of slurry, and the prior art lacks effective control on the porosity of the boards, which are both difficult to meet the requirements of the latched floor;
3. structural strength and flexural strength: the lock catch floor has higher requirements on the structural strength and the bending strength of the board due to the use environment, the board produced by the prior art is mainly applied to decoration, and the requirements on the structural strength and the bending strength of the board are not high, so the lock catch floor is not suitable for being applied to the lock catch floor;
4. water-resistant stability: the lock catch floor has higher requirements on the water resistance of the board due to the use environment, the water resistance coefficient of the board produced by the prior art is lower, the structural strength is obviously reduced after the board is affected with damp, and the application standard of the lock catch floor cannot be met;
disclosure of Invention
Aiming at the defects in the prior art, the invention provides an inorganic lock floor, which solves the problem that the flatness, thickness uniformity, homogeneity, porosity, structural strength, flexural strength and water-resistant stability of a magnesium oxysulfate cement sanding plate in the prior art can not reach the application standard of the lock floor.
In one aspect, according to an embodiment of the present invention, an inorganic locking floor comprises the following components in parts by weight: the paint comprises the following components in parts by weight: 90-110 parts of light-burned magnesium oxide, 75-85 parts of magnesium sulfate solution, 8-13 parts of light plant fiber powder, 1.0-1.3 parts of functional additives such as a modification reinforcing agent, 0.5-1.0 part of a water reducing agent, 0.2-0.3 part of starch ether, 0.2-0.4 part of cellulose ether and 0.6-1.0 part of a defoaming agent.
In another aspect, there is provided a method for manufacturing an inorganic locking floor according to an embodiment of the present invention, including the steps of:
s1, stirring: stirring the magnesium sulfate solution, then sequentially adding the modification reinforcing agent, the high-efficiency water reducing agent, the starch ether and the cellulose ether, stirring for a moment, then adding the magnesium oxide, stirring uniformly, then adding the light plant fiber powder, stirring, finally adding the defoaming agent, stirring, and stirring for 6-7 minutes in the whole process to form slurry for later use;
s2, blanking: adding the slurry obtained in the step S1 into a template, manufacturing a mold blank by adopting a roll forming mode, carrying out multiple blanking and roll pressing in the process of roll forming of the mold blank, laying non-woven fabrics and glass fiber fabrics on the surface of the slurry along the running direction of a roller while rolling the slurry, and enabling the glass fiber fabrics to be positioned at proper positions in the mold blank;
s3, first-stage maintenance: carrying out first-stage heat preservation, moisture preservation and mixed heat curing on the die blank obtained in the step S2 under the curing conditions that the temperature is controlled to be 35-40 ℃ and the curing humidity is not lower than 75%, curing for 18-25 hours, and then demoulding to obtain a blank plate;
s4, secondary curing: stacking the demolded blank plates on a clamping plate in a parting strip isolation mode, carrying out secondary heat preservation, moisture preservation and mixed heat maintenance on the stacked blank plates under the maintenance conditions that the maintenance temperature is controlled to be 15-28 ℃ and the humidity is not higher than 80%, and standing at normal temperature after maintaining for 4-6 days;
s5, sanding: and (4) sanding the two sides of the blank plate subjected to the two-stage maintenance, and opening a lock groove to obtain a finished floor.
Compared with the prior art, the invention has the following beneficial effects: through the process steps, the non-combustibility of industrial output meets the A-grade requirement in GB8624-1997, the size deviation meets the requirement of GB/T18102-2007 table 1, the appearance quality requirement meets the requirement of GB/T18102-2007 table 2, and the physical and chemical properties meet the requirement of GB/T18102-2007 table 3, so that the inorganic lock catch floor solves the technical problems that the flatness, the thickness uniformity, the homogeneity, the porosity, the structural strength, the breaking strength, the water resistance stability and the structural strength and the breakage rate of a lock catch groove of a magnesium oxysulfate cement sanding plate cannot reach the application standard of the lock catch floor, and the produced floor has the following advantages:
1. flatness and thickness uniformity: the plate produced by the invention is homogeneous slurry, and double-sided sanding is adopted, so that the flatness and thickness accuracy of the plate are ensured.
2. Homogeneity and porosity: the material formula and the process ensure the homogeneity and low porosity of the plate.
3. Water-resistant stability: the board produced by the invention has low porosity and high water resistance coefficient, and can ensure good structural strength after being wetted.
4. Structural strength: the plate produced by the invention has higher structural strength and good bending strength.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1:
on one hand, the inorganic lock catch floor comprises the following components in parts by weight: 90 parts of light calcined magnesia (85 powder), 75 parts of industrial grade magnesium sulfate heptahydrate solution, 8 parts of light vegetable fiber powder, 1.0 part of functional additives such as a modification reinforcing agent, 0.5 part of a water reducing agent, 0.2 part of starch ether, 0.2 part of cellulose ether and 1.0 part of a defoaming agent.
In another aspect, there is provided a method for preparing an inorganic locking floor, comprising the following steps:
s1, stirring: preparing and stirring the magnesium sulfate solution, then sequentially adding the modification reinforcing agent, the high-efficiency water reducing agent, the starch ether and the cellulose ether, stirring for a moment, then adding the magnesium oxide, uniformly stirring, then adding the light plant fiber powder, stirring, finally adding the defoaming agent, stirring, and stirring for 6 minutes in the whole process to form slurry for later use;
s2, blanking: adding the slurry obtained in the step S1 into a template, manufacturing a mold blank by adopting a roll forming mode, carrying out multiple blanking and roll pressing in the process of roll forming of the mold blank, laying non-woven fabrics and glass fiber fabrics on the surface of the slurry along the running direction of a roller while rolling the slurry, and enabling the glass fiber fabrics to be positioned at proper positions in the mold blank;
s3, first-stage maintenance: performing primary heat preservation, moisture preservation and mixed heat curing on the die blank obtained in the step S2 under the curing conditions that the temperature is controlled at 35 ℃ and the curing humidity is 75%, curing for 18 hours, and then demolding to obtain a blank plate;
s4, secondary curing: stacking the demolded blank plates on a clamping plate in a parting strip isolation mode, carrying out secondary heat preservation, moisture preservation and mixed heat maintenance on the stacked blank plates under the maintenance conditions that the maintenance temperature is controlled at 15 ℃ and the humidity is 80%, and standing at normal temperature after maintaining for 4 days;
s5, sanding: and (4) sanding the two sides of the blank plate subjected to the two-stage maintenance, and opening a lock groove to obtain a finished floor product, namely a sample A.
Furthermore, in the step S2, a blanking machine with a wide and flat blanking opening is used for blanking, and the width of the blanking opening is not less than two thirds of the width of the blank plate, so that the slurry is flatly laid more smoothly, and the thickness of the slurry is more uniform.
Further, in the step S2, a filter screen is disposed below the feeding hole, and the filter screen has two functions: firstly, large particle impurities are filtered, and secondly, air in the slurry is discharged as much as possible.
Furthermore, in the step S2, in the process of multiple blanking, each blanking position is provided with a hard scraping strip and a rolling roller, and after the slurry flows onto the template, the slurry is scraped first and then rolled, so that each rolling is smoother, and the slurry is denser.
Furthermore, a preparation method of inorganic matter hasp floor, scrape strip and roller and use the scale to decide thick, scrape thick liquid and roll-in thickness control at 2mm at every turn, scrape the air that the thick liquid control thickness about 2mm was wrapped up in mainly discharging the thick liquids, secondly spread the thick liquids and level, make follow-up thick liquids receive the power of roll-in more even, prevent to pile up too much clout before the roller and cause too big resistance to whole operation, too much clout also can cause the extrusion to lower floor's thick liquids in addition.
Furthermore, in the step S2, in the step S2, a layer of non-woven fabric is laid, and after the non-woven fabric is rolled, a layer of glass fiber fabric is laid, so that the non-woven fabric and the slurry are fused to form a support on one surface, and the position where the glass fiber fabric is laid in the slurry keeps good flatness.
Furthermore, in the step S5, the polishing thickness of the blank after the secondary curing is 1.5-2 mm, so that the cost is reduced and the waste is reduced.
Furthermore, in the step S2, the laid glass fiber cloth is divided into two layers, the distance between the upper layer glass fiber cloth and the upper surface of the blank plate is 1.2-0.3 mm-1.2 +0.1mm, the distance between the lower layer glass fiber cloth and the lower surface of the blank plate is 1.5-0.3 mm-1.5 +0.3mm, the strength and toughness of the lock catch are ensured in the subsequent lock catch groove opening process, the structural strength of the groove is further improved, and the breakage rate of the lock catch groove is reduced.
Further, in the steps S3 and S4, the curing process uses three automatic control systems: firstly, automatic heating is carried out; secondly, automatic heat mixing; thirdly, automatically removing moisture; three automatic control systems are mutually matched, so that the maintenance condition is more conveniently controlled, the labor cost is reduced, and the operation is convenient.
Example 2:
on one hand, the inorganic locking floor board has the following components compared with the components in the embodiment 1: 100 parts of light calcined magnesia (85 powder), 80 parts of industrial grade magnesium sulfate heptahydrate solution, 10 parts of light plant fiber powder, 1.2 parts of modification reinforcing agent, 0.8 part of water reducing agent, 0.3 part of cellulose ether and 0.8 part of defoaming agent.
In another aspect, there is provided a method for preparing an inorganic locking floor, comprising the following steps:
s1, stirring: preparing and stirring the magnesium sulfate solution, then sequentially adding the modification reinforcing agent, the high-efficiency water reducing agent, the starch ether and the cellulose ether, stirring for a moment, then adding the magnesium oxide, uniformly stirring, then adding the light plant fiber powder, stirring, finally adding the defoaming agent, stirring, and stirring for 6 minutes in the whole process to form slurry for later use;
s2, blanking: adding the slurry obtained in the step S1 into a template, manufacturing a mold blank by adopting a roll forming mode, carrying out multiple blanking and roll pressing in the process of roll forming of the mold blank, laying non-woven fabrics and glass fiber fabrics on the surface of the slurry along the running direction of a roller while rolling the slurry, and enabling the glass fiber fabrics to be positioned at proper positions in the mold blank;
s3, first-stage maintenance: performing primary heat preservation, moisture preservation and mixed heat curing on the die blank obtained in the step S2 under the curing conditions that the temperature is controlled at 35 ℃ and the curing humidity is 75%, curing for 18 hours, and then demolding to obtain a blank plate;
s4, secondary curing: stacking the demolded blank plates on a clamping plate in a parting strip isolation mode, carrying out secondary heat preservation, moisture preservation and mixed heat curing on the stacked blank plates under the curing conditions that the curing temperature is controlled at 22 ℃ and the humidity is not higher than 80%, and standing at normal temperature after curing for 5 days;
s5, sanding: and (4) sanding the two sides of the blank plate subjected to the two-stage maintenance, and opening a lock groove to obtain a finished floor product, namely a sample B.
Example 3:
on one hand, the inorganic locking floor board has the following components compared with the components in the embodiment 1: 110 parts of light calcined magnesia (85 powder), 85 parts of industrial grade magnesium sulfate heptahydrate solution, 13 parts of light plant fiber powder, 1.3 parts of modification reinforcing agent, 0.5 part of water reducing agent, 0.3 part of starch ether, 0.4 part of cellulose ether and 0.6 part of defoaming agent.
In another aspect, there is provided a method for preparing an inorganic locking floor, comprising the following steps:
s1, stirring: preparing and stirring the magnesium sulfate solution, then sequentially adding the modification reinforcing agent, the high-efficiency water reducing agent, the starch ether and the cellulose ether, stirring for a moment, then adding the magnesium oxide, uniformly stirring, then adding the light plant fiber powder, stirring, finally adding the defoaming agent, stirring, and stirring for 7 minutes in the whole process to form slurry for later use;
s2, blanking: adding the slurry obtained in the step S1 into a template, manufacturing a mold blank by adopting a roll forming mode, carrying out multiple blanking and roll pressing in the process of roll forming of the mold blank, laying non-woven fabrics and glass fiber fabrics on the surface of the slurry along the running direction of a roller while rolling the slurry, and enabling the glass fiber fabrics to be positioned at proper positions in the mold blank;
s3, first-stage maintenance: carrying out first-stage heat preservation, moisture preservation and mixed heat curing on the die blank obtained in the step S2 under the curing conditions that the temperature is controlled to be 35-40 ℃ and the curing humidity is not lower than 75%, curing for 18-25 hours, and then demoulding to obtain a blank plate;
s4, secondary curing: stacking the demolded blank plates on a clamping plate in a parting strip isolation mode, carrying out secondary heat preservation, moisture preservation and mixed heat maintenance on the stacked blank plates under the maintenance conditions that the maintenance temperature is controlled to be 15-28 ℃ and the humidity is not higher than 80%, and standing at normal temperature after maintaining for 4-6 days;
s5, sanding: and (4) sanding the two sides of the blank plate subjected to the two-stage maintenance, and opening a lock groove to obtain a finished floor product, namely a sample C.
The data obtained by testing the samples A, B and C according to the test method of GB/T17657-2003 are shown in Table 1.
Table 1:
as can be seen from table 1, the floor produced has several advantages as follows:
1. flatness and thickness uniformity: the floor produced by the invention is uniform slurry, and double-sided sanding is adopted, so that the flatness and thickness accuracy of the floor are ensured.
2. Homogeneity and porosity: the material formula and the process ensure the uniformity and low porosity of the floor.
3. Water-resistant stability: the floor produced by the invention has low porosity and high water resistance coefficient, and can ensure good structural strength after being wetted.
4. Structural strength: the floor produced by the invention has higher structural strength and good bending strength.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. An inorganic matter hasp floor which characterized in that: the paint comprises the following components in parts by weight: 90-110 parts of light-burned magnesium oxide, 75-85 parts of magnesium sulfate solution, 8-13 parts of light plant fiber powder, 1.0-1.3 parts of functional additives such as a modification reinforcing agent, 0.5-1.0 part of a water reducing agent, 0.2-0.3 part of starch ether, 0.2-0.4 part of cellulose ether and 0.6-1.0 part of a defoaming agent.
2. The preparation method of the inorganic matter hasp floor is characterized in that: the method comprises the following steps:
s1, stirring: preparing a magnesium sulfate solution and stirring, then sequentially adding a modification reinforcing agent, a high-efficiency water reducing agent, starch ether and cellulose ether, stirring for a moment, then adding magnesium oxide, uniformly stirring, then adding light plant fiber powder and stirring, finally adding a defoaming agent and stirring, and stirring for 6-7 minutes in the whole process to form slurry for later use;
s2, blanking: adding the slurry obtained in the step S1 into a template, manufacturing a mold blank by adopting a roll forming mode, carrying out multiple blanking and roll pressing in the process of roll forming of the mold blank, laying non-woven fabrics and glass fiber fabrics on the surface of the slurry along the running direction of a roller while rolling the slurry, and enabling the glass fiber fabrics to be positioned at proper positions in the mold blank;
s3, first-stage maintenance: carrying out first-stage heat preservation, moisture preservation and mixed heat curing on the die blank obtained in the step S2 under the curing conditions that the temperature is controlled to be 35-40 ℃ and the curing humidity is not lower than 75%, curing for 18-25 hours, and then demoulding to obtain a blank plate;
s4, secondary curing: stacking the demolded blank plates on a clamping plate in a parting strip isolation mode, carrying out secondary heat preservation, moisture preservation and mixed heat maintenance on the stacked blank plates under the maintenance conditions that the maintenance temperature is controlled to be 15-28 ℃ and the humidity is not higher than 80%, and standing at normal temperature after maintaining for 4-6 days;
s5, sanding: and (4) sanding the two sides of the blank plate subjected to the two-stage maintenance, and opening a lock groove to obtain a finished floor.
3. The method of claim 2, wherein: in the step S2, a blanking machine with a wide and flat blanking opening is used for blanking, and the width of the blanking opening is not less than two thirds of the width of the die blank.
4. The method of manufacturing an inorganic locking flooring according to claim 3, wherein: in the step S2, a filter screen is disposed below the feed opening.
5. The method of claim 4, wherein: in the step S2, in the process of multiple times of blanking, each blanking position is provided with a hard scraping strip and a rolling roller, and the slurry is scraped first and then rolled after flowing onto the template.
6. The method of claim 5, wherein: the thickness of the scraping strip and the roller is determined by using a ruler, and the thickness of the scraping pulp and the rolling at each time is controlled to be 2 mm.
7. The method of claim 2, wherein: in step S2, a layer of non-woven fabric is laid first, and after rolling once, a layer of glass fiber fabric is laid.
8. The method of claim 2, wherein: in the step S5, the polishing thickness of the blank plate is 1.5-2 mm.
9. The method of claim 2, wherein: in the step S2, the glass fiber cloth is laid in two layers, the distance between the glass fiber cloth of the upper layer and the upper surface of the blank plate is 1.2-0.3 mm-1.2 +0.1mm, and the distance between the glass fiber cloth of the lower layer and the lower surface of the blank plate is 1.5-0.3 mm-1.5 +0.3 mm.
10. The method of claim 2, wherein: in the steps S3 and S4, three automatic control systems are adopted for maintenance: firstly, automatic heating is carried out; secondly, automatic heat mixing; and thirdly, automatically removing moisture.
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