CN115196928A - Light soft stone slab and preparation method thereof - Google Patents

Light soft stone slab and preparation method thereof Download PDF

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Publication number
CN115196928A
CN115196928A CN202211120667.6A CN202211120667A CN115196928A CN 115196928 A CN115196928 A CN 115196928A CN 202211120667 A CN202211120667 A CN 202211120667A CN 115196928 A CN115196928 A CN 115196928A
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parts
layer
slurry
white
base layer
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沈阳
秦伟
潘杨
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JIANGSU BAIDAI ENERGY-SAVING BUILDING MATERIALS CO LTD
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JIANGSU BAIDAI ENERGY-SAVING BUILDING MATERIALS CO LTD
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Priority to CN202211120667.6A priority Critical patent/CN115196928A/en
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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
    • C04B28/02—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 hydraulic cements other than calcium sulfates
    • C04B28/04—Portland 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
    • 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
    • C04B28/001—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 unburned clay
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
    • E04F13/147—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer imitating natural stone, brick work or the like
    • 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
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/50—Flexible or elastic 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
    • C04B2111/80—Optical properties, e.g. transparency or reflexibility
    • C04B2111/82—Coloured 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
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Abstract

The application relates to the technical field of building facing materials, and particularly discloses a light soft stone slab, which sequentially comprises a surface layer and a base layer from top to bottom, wherein the surface layer and the base layer are compounded and then pressed in a slurry state, and the thickness of the light soft stone slab is 6mm to 15mm. The composite material is characterized by also comprising an intermediate layer, wherein the intermediate layer is positioned between the surface layer and the base layer, and the intermediate layer, the surface layer and the base layer are compounded and then pressed in a slurry state. The light soft stone slab product has the advantages of heat preservation, light weight and low cost. The application also discloses a preparation method of the light soft stone plate, which comprises the following steps: preparing surface layer slurry, preparing middle layer slurry and preparing base layer slurry, arranging the base layer slurry in a mould, and covering the middle layer slurry on the upper surface of the base layer slurry to obtain a base layer-middle layer blank; covering the surface layer slurry on the upper surface of the middle layer to obtain a light soft stone plate blank; and (5) hot-die pressing the blank to obtain the light soft stone plate. The method is easy to operate, and can efficiently produce the light soft stone plate with stable quality.

Description

Light soft stone slab and preparation method thereof
Technical Field
The application relates to the technical field of building facing materials, in particular to a light soft stone slab and a preparation method thereof.
Background
The soft stone plate is also called as a soft stone material with a flexible decorative surface, is a novel environment-friendly wall surface decorative surface sheet material, and has certain flexibility. The soft stone slab is made up by using inorganic or organic cementing material, aggregate and filler through the processes of making blocks and forming, and can be prefabricated into the invented imitation product with the moulding of stone material, wood grain, face brick, wall cloth and tile, etc..
At present, the thickness of the soft stone slab on the market is from 2mm to 3mm, the heat preservation requirement of the market cannot be well met, and the soft stone slab with the increased thickness is directly produced by using the raw materials of the soft stone slab, so that the production cost of the product is high, the price is high, and the target audience is few; moreover, the soft stone slab with increased thickness directly produced by using the raw materials of the soft stone slab has larger dead weight, and the soft stone slab with large dead weight has extremely high possibility of damaging people and objects once falling off when being used as the outer wall facing. Therefore, developing a thickened, lightweight, low-cost soft stone slab is a technical difficulty to be solved in the field.
Disclosure of Invention
In order to improve the contradiction between the thickness and the self weight of the existing soft stone plate and the production cost, the first purpose of the application is to provide a light soft stone plate which has the advantages of heat preservation, light weight and low cost.
A second object of the present application is to provide a method for preparing a lightweight soft stone slab, which has simple steps and easy operation, and can efficiently produce a lightweight soft stone slab with stable quality.
In order to achieve the first object, the present application provides the following technical solutions: the light soft stone slab comprises a surface layer and a base layer from top to bottom in sequence, wherein the surface layer and the base layer are pressed together, the thickness of the surface layer is from 2mm to 3mm, and the thickness of the light soft stone slab is from 6mm to 15mm; the surface layer is prepared from the following raw materials in parts by weight: 50-70 parts of water, 200-250 parts of cement-based emulsion, 150-250 parts of white cement, 300-350 parts of triple superphosphate, 140-200 parts of snowflake white, 1-2 parts of water reducer, 2-3 parts of curing agent, 2-3 parts of thickening agent and 3-10 parts of retarder; the base layer is prepared from the following raw materials in parts by weight: 200-300 parts of water, 50-60 parts of cement-based emulsion, 300-400 parts of white cement, 200-300 parts of heavy calcium carbonate, 3-5 parts of water reducing agent, 2-3 parts of thickening agent, 35-45 parts of perlite and 1-2 parts of defoaming agent; and when the surface layer and the base layer are in a slurry state, a blank with the base layer at the bottom and the surface layer at the top is formed in a die, and the surface layer and the base layer are combined through hot pressing of the blank.
Through increasing the basic unit, can increase to 1.5cm with the thickness of soft stone board product to through the design of basic unit prescription and the addition of pearlite, allot the panel that has good heat preservation performance with the basic unit, make the soft stone board product of this application possess good heat preservation performance. Meanwhile, the density of the base layer is controlled by reducing the solid content in the base layer formula, the strength of the base layer plate is maintained within the national standard range, the dead weight of the base layer is reduced as far as possible through the adjustment of the base layer formula, the base layer formula in the application is finally obtained through testing, the dead weight of the base layer plate can be smaller than that of a surface layer plate with the same volume and thickness, and the soft stone product in the application has a relatively light effect while the thickness is increased. Secondly, the snowflake white with relatively high price is not selected in the base layer formula, the white cement is adopted for proper complementation, and the dosage of the cement-based emulsion and the heavy calcium carbonate is reduced, so that the base layer quality is maintained, and meanwhile, the production cost of the base layer is reduced as much as possible, and the effect of reducing the production cost of the soft stone slab is achieved.
Implementations may include any or all of the following features.
In another embodiment, the composite material further comprises an intermediate layer, wherein the intermediate layer is positioned between the surface layer and the base layer, the intermediate layer, the surface layer and the base layer are pressed, and the intermediate layer is prepared from the following raw materials in parts by weight: 80-120 parts of water, 2-4 parts of fiber, 250-350 parts of calcium formate, 450-550 parts of quartz sand and 80-120 parts of adhesive; and when the middle layer, the surface layer and the base layer are in a slurry state, a blank with the base layer below, the middle layer in the middle and the surface layer above is formed in a die, and the middle layer, the surface layer and the base layer are combined through blank hot pressing.
The surface course and the basic unit of this application soft slate have possessed certain pliability because the effect of cement base emulsion, provide certain design and intensity supporting role through above-mentioned technical scheme's intermediate level, reduce this application soft slate because of the temperature and the humidity change takes place the possibility of deformation, play the effect that promotes this application soft slate weatherability.
In another embodiment, the surface layer, the middle layer and the base layer are combined in a slurry state and then pressed.
Just compound when the layer structure is in the thick liquids state, there are natural dispersion and bonding between the layer, and the product layer after the pressfitting is more reliable and more stable with the self-adhesion between the layer, can reduce the risk of soft stone product later stage tympanic bulla, layering that the adhesive leads to as intermediate medium, and does not use the adhesive to make this product environmental protection more.
In another embodiment, the snowflake white in the surface layer is formed by mixing snowflake white with two or more fineness.
In another embodiment, the snowflake white is prepared by mixing 40 to 80 meshes of snowflake white and 80 to 120 meshes of snowflake white according to a proportion, wherein the mixing proportion of the 40 to 80 meshes of snowflake white to the 80 to 120 meshes of snowflake white is 40 to 80 meshes of snowflake white: 80 to 120 meshes =1.2 to 1.8.
In another embodiment, the fibers of the middle layer comprise cellulose and fiber silk, the fiber silk is 9mm, and the ratio of the cellulose to the fiber silk of 9mm is 1.
In another embodiment, the thickening agent in the surface layer raw material and the base layer raw material is sodium alginate; the retarder in the surface layer is selected from white sugar in an amount of 3 to 4 parts by weight in summer, and is selected from calcium formate in an amount of 9 to 10 parts by weight in winter.
Different retarders are selected according to different temperatures during proportioning, so that evaporation or icing of water during mixing and reaction is reduced, raw materials are in the best physicochemical state during preparation of slurry, and interference of the environment on the quality of the slurry is reduced.
In order to achieve the second object, the present application provides the following technical solutions: a method for preparing a light soft stone plate comprises the following steps:
mixing materials:
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, snow white, a water reducing agent, a curing agent, a thickening agent and a retarder to prepare surface layer slurry;
uniformly mixing water, fibers, calcium formate, quartz sand and an adhesive to prepare intermediate layer slurry;
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, a water reducing agent, a thickening agent, perlite and a defoaming agent to prepare base layer slurry;
feeding:
(1) Flatly arranging the base layer slurry in a die according to the required thickness to obtain a base layer blank;
(2) Flatly covering the middle layer slurry on the base layer blank in the mould according to the required thickness to obtain a base layer-middle layer blank;
(3) Flatly covering the surface layer slurry on the middle layer of the base layer-middle layer blank in the mold according to the required thickness to obtain a light soft stone slab blank;
production: and carrying out hot die pressing production on the light soft stone slab to obtain the light soft stone slab.
By the technical scheme, the surface layer, the middle layer and the base layer can be compounded when the blank is in a slurry state, and the slurry is in a semi-flowing state, so that the basic form can be maintained in a die, and molecules among the layers can be dispersed to a certain degree. At last, through hot pressing integrated into one piece, make and produce the self-adhesion between the layer, do not rely on the bond line, this makes the bonding between surface course and the basic unit more reliable and stable, has reduced the later stage tympanic bulla that this application soft stone product takes place because of intermediate medium, the risk of layering.
In another embodiment, in the feeding step, the die is positioned in an oven, the temperature of the oven is controlled to be 60-100 ℃, and the humidity is controlled to be 30-50%.
During the material loading, through the temperature of above-mentioned technical scheme oven and the settlement of humidity, can make the bonding quality between this application soft slate layer and the layer higher.
In another embodiment, in the mixing step, the viscosity of the surface layer slurry is controlled to be within 85KU to 100KU.
The viscosity of the surface layer slurry is an important factor for determining the surface layer quality of the soft stone slab, and on the other hand, the surface layer slurry is easy to maintain basic form in the slab stage through the control of the viscosity of the surface layer slurry, so that the transitional permeation condition of the surface layer slurry to the middle layer slurry or the base layer slurry in the slab stage is reduced.
In another embodiment, in the mixing step, when the facing layer slurry is mixed, one of white toner or color toner, or a mixture of white toner and color toner, or a mixture of two or more color toners with different colors is added;
the white toner comprises titanium white slurry, and the titanium white slurry is prepared from the following raw materials in parts by weight:
200 to 300 parts of water, 2 to 3 parts of a dispersing agent, 1 to 2 parts of a wetting agent, 1 to 0.8 part of AMP-95, 1 to 2 parts of an antifoaming agent, 250 to 350 parts of titanium dioxide and 3 to 2 thousand parts of cellulose; the fineness of the titanium white slurry is 40um to 60um.
Through above-mentioned technical scheme, can improve the luminance and the color and luster of this application soft slate, make it have more extensive application scene.
To sum up, the application provides a light soft stone slab and a preparation method thereof, and the light soft stone slab has the following beneficial effects: the application provides a soft slabstone is composite construction, and the surface course is the high-quality soft slabstone surface course that 2mm to 3mm is thick, and is compound through the thick liquids bed, and lower basic unit of compound cost is under the surface course to hot pressing integrated into one piece's mode, perhaps intermediate level and basic unit have reduced the manufacturing cost of thickening type soft slabstone. And, mainly increase the thickness of this application soft stone board through the basic unit, can make this application soft stone board reach 1.5cm thick, possessed good thermal insulation performance simultaneously. In addition, through the improvement of basic unit's prescription, make the basic unit have the characteristics of light to make the dead weight of the soft stone slab product that obtains after basic unit and surface course, intermediate level are compound obviously less than the dead weight of the soft stone slab of equal area and thickness directly produced by surface course thick liquids, make the soft stone slab of this application possess the characteristics of light.
Drawings
Fig. 1 is a schematic view of the structure of a lightweight slate having a 3-layer structure.
Fig. 2 is a schematic view of a structure of a lightweight soft stone slab having a double-layer structure.
FIG. 3 is a flow chart of the method of making a lightweight slate of the present application.
Description of the reference numerals: 1. a surface layer; 2. an intermediate layer; 3. a base layer.
Detailed Description
Hereinafter, the lightweight soft stone panel and the method for manufacturing the same according to the present application will be described in further detail.
The application firstly provides a light soft stone plate which is a laminated layered structure and comprises a surface layer and a base layer and also can comprise an intermediate layer, wherein the intermediate layer is positioned between the surface layer and the base layer. In the slurry state, the layers are formed in the mold in a state of a paste in which the surface layer and the base layer are sequentially formed from top to bottom, or the surface layer, the intermediate layer, and the base layer are sequentially formed, and the pastes of the adjacent two layers may be in direct contact with each other, or a medium having an adhesive function may be disposed. Preferably, this surface course thick liquids and basic unit thick liquids can not arrange any intermediate medium and direct contact between, utilize thick liquids half flowing state, compound under the thick liquids state, make the thick liquids of two-layer interface produce the flow of certain degree and fuse, recycle hot die pressing technique integrated into one piece, can obtain the reliable soft stone board of self-adhesion, make the soft stone board product of this application more green.
The surface layer is prepared from the following raw materials in parts by weight: 50-70 parts of water, 200-250 parts of cement-based emulsion, 150-250 parts of white cement, 300-350 parts of triple superphosphate, 140-200 parts of snowflake white, 1-2 parts of water reducing agent, 2-3 parts of curing agent, 2-3 parts of thickening agent and 3-10 parts of retarder. Among them, the cement-based emulsion is not particularly limited, and a cement-based emulsion conventionally used in the art, for example, an acrylic emulsion, a JS polymer cement-based waterproof emulsion, and preferably an acrylic flexible waterproof emulsion can be used. The snowflake white in the surface layer is formed by mixing two or more than two kinds of snowflake white, and the snowflake white is preferably formed by mixing 40-80 meshes of snowflake white and 80-120 meshes of snowflake white according to the following weight percentage: 40 to 80-mesh snowflake white: 80-120 mesh = 1.2-1.8.
The water reducing agent is not particularly limited, and examples thereof include water reducing agents commonly used in the art: lignosulphonates, molasses, humic acids, coal tar series water reducing agents, aliphatic hydroxysulfonate, sulfamate, melamine, ether type/ester type polycarboxylic acids and the like.
The curing agent is not particularly limited, and examples thereof include those which can shorten the curing time of cement, which are conventionally used in the art: a nano-Portland cement curing agent, an Ansfusolence cement curing agent and a Meili cement curing agent. In the soft stone slab, it is necessary to control the use of a certain amount of curing agent, so that the drying speed of the slab can be increased, the thick slab can be completely dried within 2h to 3h, and the soft stone slab can reach a certain strength.
The retarder can be retarder which can play a retarding role on cement in the field, preferably, when surface layer slurry is prepared in summer, white sugar is adopted as the retarder, and the using amount of the white sugar is 3 to 4 parts by weight; when the surface layer slurry is prepared in winter, calcium formate is used as a retarder, the using amount of the calcium formate is 9-10 parts, and the calcium formate not only can play a role in retarding, but also can relieve the icing of a slurry semi-finished product. The thickener is preferably sodium alginate, white sugar or calcium formate and sodium alginate which are matched according to the feeding amount, so that the stability and the construction coating property of the slurry can be improved.
The thickness of the surface layer is preferably 2mm to 3mm, and for example, any thickness of 2mm, 3mm, or 2mm to 3mm may be mentioned.
The middle layer is prepared from the following raw materials in parts by weight: 80-120 parts of water; 2-4 parts of fibers; 250 to 350 parts of calcium formate; 450 to 550 parts of quartz sand; 80-120 parts of adhesive. The fiber is preferably a mixture of cellulose and fiber silk, the cellulose is preferably 3 ten thousand, the fiber silk is preferably 9mm, and the cellulose 3 ten thousand and the fiber silk 9mm are mixed according to the proportion of 1. The binder is preferably bentonite.
The base layer is prepared from the following raw materials in parts by weight: 200-300 parts of water, 50-60 parts of cement-based emulsion, 300-400 parts of white cement, 200-300 parts of triple superphosphate, 3-5 parts of water reducing agent, 2-3 parts of thickening agent, 35-45 parts of perlite and 1-2 parts of defoaming agent. The cement-based emulsion is not particularly limited, and a cement-based emulsion conventionally used in the art, such as an acrylic emulsion, a JS polymer cement-based waterproof emulsion, can be used. The water reducing agent is not particularly limited, and examples thereof include water reducing agents commonly used in the art: lignosulphonates, molasses, humic acids, coal tar series water reducing agents, aliphatic hydroxysulfonate, sulfamate, melamine, ether type/ester type polycarboxylic acids and the like. The defoaming agent is not particularly limited, and a defoaming agent commonly used in the art, for example, defoaming agent NXZ, may be used.
The cement-based emulsion used in the base layer may be the same as or different from the cement-based emulsion used in the top layer, preferably, the cement-based emulsion in the base layer is the same as the cement-based emulsion used in the top layer, and the cement-based emulsion in the base layer is preferably an acrylic flexible waterproof emulsion. The water reducing agent used in the base layer and the water reducing agent used in the top layer may be the same or different, and preferably, the water reducing agent used in the base layer and the water reducing agent used in the top layer are the same. The thickener is preferably sodium alginate. Through the optimization of cement-based emulsion, water reducing agent and thickening agent in the base layer, the difference between the base layer and the surface layer can be reduced as much as possible, the self-fusion between the blank layer and the layer is more facilitated when the double-layer soft stone slab of the surface layer and the base layer is produced, and the stability and reliability of the interlayer adhesion in the later use process of the soft stone slab product can also be improved. When three layers of soft stone plates of the surface layer, the middle layer and the base layer are produced, the soft stone plates can be easily kept stable in the external shape in the later use process.
The thickness of the two-layer or three-layer light soft stone slab is 6mm to 15mm, the purpose of thickening is realized by controlling the thickness of the middle layer and the base layer, the thickness of the middle layer and the base layer is not particularly limited, and the thickness of the middle layer and the base layer is adjusted according to the use requirement on the premise that the surface layers are 2mm to 3mm in the field. The thickness of the surface layer is 2mm to 3mm, so that the quality indexes of the light soft stone slab, such as flexibility, stress resistance, surface layer strength and the like, can be maintained in an excellent range. However, the intermediate layer in this application does not have the flexibility, and the addition of intermediate layer is in order to improve the stability of this application soft stone board's intensity and shape, and the intermediate layer is thicker, and soft stone board's flexibility is lower, and the field can adjust the thickness of intermediate layer according to the difference of the pliability and the intensity of the soft stone board product of needs, need compromise the problem of the soft stone board product dead weight increment that intermediate layer weight brought simultaneously. In order to control the thermal insulation performance, flexibility, dead weight and strength of the light soft stone slab at excellent levels, the thickness of the intermediate layer is preferably 0.3mm to 1mm, and for example, the thickness of the intermediate layer is 0.3mm, 1mm or any thickness between 0.3mm and 1mm. The remaining thickness is complemented by the base layer thickness.
The application secondly provides a preparation method of the light soft stone plate, which comprises the steps as shown in figure 3:
preparing slurry:
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, snow white, a water reducing agent, a curing agent, a thickening agent and a retarder to prepare surface layer slurry;
uniformly mixing water, fibers, calcium formate, quartz sand and an adhesive to prepare intermediate layer slurry;
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, a water reducing agent, a thickening agent, perlite and a defoaming agent to prepare base layer slurry;
feeding:
(1) Flatly arranging the base layer slurry in a die according to the required thickness to obtain a base layer blank;
(2) Flatly covering the middle layer slurry on the base layer blank in the mould according to the required thickness to obtain a base layer-middle layer blank;
(3) Flatly covering the surface layer slurry on the middle layer of the base layer-middle layer blank in the mould according to the required thickness to obtain a light soft stone plate blank;
production: and carrying out hot die pressing production on the light soft stone slab to obtain the light soft stone slab.
In the step of preparing the slurry, the surface layer slurry, the middle layer slurry and the base layer slurry are respectively carried out in different reaction kettles, and the surface layer slurry, the middle layer slurry and the base layer slurry have no sequential relationship. The final viscosity of the surface layer slurry is controlled to be within 85KU to 100KU.
In the step of preparing the slurry, after the mixing reaction of the surface layer slurry is finished, one of white toner or color toner, or the white toner and the color toner, or two or more color toners with different colors are added. The color toner is a toner sold in the market and used for toning artificial stones or soft stones, the white toner comprises self-made titanium white slurry, and the titanium white slurry is prepared from the following raw materials in parts by weight:
200-300 parts of water, 2-3 parts of a dispersing agent, 1-2 parts of a wetting agent, 0.3-0.8 part of AMP-95, 1-2 parts of a defoaming agent, 250-350 parts of titanium dioxide and 2-3 parts of cellulose, wherein the fineness of the prepared titanium white slurry is 40um-60 um. Wherein the dispersant is HA-10, the wetting agent is PE-100, the defoamer is NXZ, the titanium white powder is R940 titanium white powder, and the cellulose is 3 ten thousand. The fineness of the titanium white slurry is 40um to 60um.
The preparation method of the titanium white slurry comprises the following steps: sequentially adding water and a dispersing agent into a reaction kettle, sequentially adding a wetting agent PE-100, AMP-95, a defoaming agent NXZ and R940 titanium dioxide after dispersing for 30min at 800R/min, stirring for 3min to 5min at 800R/min, increasing the rotating speed to 1000R/min, then adding 3 thousands of cellulose, dispersing for 30min to 45min at high speed at 1000R/min, and scraping out the titanium white slurry with the fineness of 40um to 60um by using a scraper fineness meter, and stopping stirring to obtain titanium white slurry for later use.
In the feeding step, the die is positioned in an oven, the temperature of the oven is controlled to be 60-100 ℃, and the humidity is controlled to be 30-50%.
In the production step, the production equipment used is a hot mould press, and after the light soft stone plate is produced, the subsequent steps of cutting, packaging and the like can be further included.
Hereinafter, the lightweight soft stone panel and the method for manufacturing the same according to the present application will be described in further detail with reference to specific examples.
Example 1:
preparing titanium white slurry:
(1) According to the following weight parts, 232.20 parts of raw material water and 2.40 parts of dispersant HA-10 are sequentially added into a reaction kettle and dispersed for 30min at the speed of 800 r/min;
(2) Sequentially adding a wetting agent PE-100, AMP-95, a defoaming agent NXZ and R940 titanium dioxide, stirring at 800R/min for 3min to 5min, increasing the rotating speed to 1000R/min, adding 3 ten thousand of cellulose, and dispersing at a high speed of 1000R/min for 45 min;
(3) And (4) when the fineness of the titanium pigment is within the range of 40um to 60um by using a scraper blade fineness meter, stopping stirring to obtain titanium pigment slurry for later use.
Preparing surface layer slurry:
(1) The raw materials are as follows by weight: 64.52 parts of water and 238.71 parts of flexible waterproof acrylic emulsion are added into a reaction kettle and stirred for 5min at the speed of 800 r/min;
(2) Adding 193.55 parts of white cement, 322.58 parts of triple superphosphate, 96.77 parts of 80-120 mesh snowflake, 64.52 parts of 40-80 mesh snowflake, 1.29 parts of calcium lignosulfonate, 2.58 parts of a nano-Portland cement curing agent, 2.58 parts of sodium alginate and 3.23 parts of white sugar into the reaction kettle in sequence, stirring for 5min at 800 r/min after all the materials are added, and stirring for 10min at the rotating speed of 1000 r/min;
(3) Taking 10mL of sample, measuring the viscosity of the sample by using a viscometer, and stopping stirring when the viscosity is within 85KU to 100KU to obtain a base color material of the surface layer slurry;
(4) Weighing the prepared titanium white slurry, adding the titanium white slurry into the primary pigment of the surface layer slurry obtained in the step (3), wherein the weighed amount of the titanium white slurry is 1.5 thousandth of the total weight of the primary pigment of the surface layer slurry obtained in the step (3), and stirring for 10min at 1000r/min after adding to obtain the primary pigment of the surface layer slurry;
(5) And (3) initially feeding 3kg (4) of surface layer slurry to a production line for color test, comparing a color test sample with a color card, and finishing color matching when the color accuracy reaches 95% or more to obtain the surface layer slurry for later use.
Preparing intermediate layer slurry:
(1) Adding 100 parts of raw material water, 1.5 parts of cellulose, 1.5 parts of 9mm cellosilk, 300 parts of calcium formate, 500 parts of natural quartz sand and 100 parts of bentonite into a reaction kettle in sequence, stirring at 800 r/min for 5min when each raw material is added, and after all the materials are completely stirred, increasing the rotating speed to 1000r/min and stirring for 10min;
(2) Taking 10mL of sample, scraping out the sample with fineness of 40um to 60um by a fineness meter, and stopping stirring to obtain intermediate layer slurry for later use.
Preparing base layer slurry:
(1) 267.34 parts of raw material water, 53.47 parts of acrylic flexible waterproof emulsion, 367.59 parts of white cement, 267.34 parts of triple superphosphate, 4.01 parts of calcium lignosulphonate, 2.67 parts of sodium alginate, 40.10 parts of 20-40-mesh perlite and 1.34 parts of defoaming agent NXZ are sequentially added into a reaction kettle, 800 r/min is stirred for 5min when each raw material is added, and after all the raw materials are stirred, the rotating speed is increased to 1000r/min and stirred for 10min;
(2) Taking 10mL of sample, measuring the viscosity of the sample by using a viscometer, and stopping stirring when the viscosity is within 85KU to 100KU to obtain base layer slurry for later use.
Preparing a light soft stone plate:
(1) Respectively feeding the prepared surface layer slurry, middle layer slurry and base layer slurry into corresponding charging barrels of a hot die press, setting the temperature of an oven to be 80 ℃ and the humidity to be 35%, and when the temperature of the oven is increased to 80 ℃ and the humidity reaches 35%, flatly arranging the prepared base layer slurry in a die with the thickness of 11mm to obtain a base layer blank;
(2) Flatly covering the prepared middle layer slurry on the upper surface of the base layer slurry in the step (1) to obtain a base layer-middle layer blank, wherein the thickness of the base layer-middle layer blank is 1 mm;
(3) Flatly covering the prepared surface layer slurry on the upper surface of the middle layer in the step (2) to obtain a light soft stone plate blank, wherein the thickness of the surface layer slurry is 3 mm;
(4) And (3) carrying out hot die pressing production on the light soft stone slab blank obtained in the step (3) to obtain the light soft stone slab shown in the figure 1, wherein the light soft stone slab is of a three-layer structure and sequentially comprises a surface layer 1, a middle layer 2 and a base layer 3 from top to bottom, and the total thickness is 15mm.
(5) And (4) taking the light soft stone plate out of the oven, and then sequentially cutting, cutting and packaging.
Example 2:
the difference between this example and example 1 is that when preparing a lightweight flexible stone slab, the thickness of the base layer blank arranged in the mold is 6.5mm, the thickness of the middle layer slurry is 0.5mm, and the thickness of the surface layer slurry is 3mm, and finally three layers of lightweight flexible stone slabs with a thickness of 10mm are produced.
Example 3:
this example is different from example 1 in that when preparing a lightweight flexible stone board, a surface layer slurry with a thickness of 3mm is evenly arranged on the upper surface of a base layer blank with a thickness of 12mm, and finally a double-layer lightweight flexible stone board with a total thickness of 15mm is produced as shown in fig. 2, which is a surface layer 1 and a base layer 3 in this order from top to bottom.
Example 4:
the difference between the example and the example 1 is that when the surface layer slurry is prepared, no titanium dioxide slurry is added for color matching, the obtained surface layer slurry initial material is directly used as the subsequent surface layer slurry, and finally the three-layer light soft stone plate with the thickness of 15mm is obtained in the production.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Performance detection test:
the water absorption (%) of the lightweight flexible stone boards obtained in examples 1 to 4, the artificial aging resistance (h), the abrasion resistance (g/750 r), the chemical corrosion resistance, the hazardous substances (TVOCg/m), the heat resistance dimensional change (%) and the flexibility were examined according to the standard JC/T2219-2014;
the light soft stone plates obtained in examples 1 to 4 were tested for thermal conductivity (W/mk) according to the standard GB/T32981-2016;
the lightweight soft stone slabs obtained in examples 1 to 4 were respectively prepared into a sample plate of 1 square meter, and the self weight (g/square meter) of the sample plate was weighed using an electronic scale.
The reference sample is a sample plate with the thickness of 1.5cm and the square meter of which the surface layer slurry is completely utilized.
The results of the performance tests are shown in table 1.
Table 1: test results of light soft stone plate performance
Figure 142753DEST_PATH_IMAGE001
As can also be seen from the data in Table 1, the average thermal conductivity of the examples 1 to 4 is reduced by 29% compared with that of the comparative sample, which indicates that the thermal insulation performance of the lightweight soft stone slab with increased thickness prepared by the method is greatly improved. More importantly, relative balance is realized in the thickness and dead weight of the soft stone slab, and data in table 1 show that the average dead weight of the light soft stone slab is reduced by 43% compared with that of a comparative sample, which indicates that the soft stone slab product produced by the formula and the preparation method can improve the defect of dead weight while increasing the thickness and obtain the thickened light soft stone slab, so that when the soft stone slab produced by the method is used as a wall surface decoration, the risk of damaging people and damaging objects due to the falling of the decoration surface can be reduced, and meanwhile, the heat insulation performance of a building wall can be improved.
It can also be seen from the data in table 1 that the lightweight soft stone slab of the application has the characteristics of light weight and heat preservation, and simultaneously has very excellent performance in the aspects of strength, weather resistance, wear resistance, environmental protection and softness, and can be widely applied to the decoration of the outer wall and the inner wall of a building.

Claims (10)

1. The light soft stone plate is characterized by comprising a surface layer and a base layer from top to bottom in sequence, wherein the surface layer and the base layer are pressed, the thickness of the surface layer is from 2mm to 3mm, and the thickness of the light soft stone plate is from 6mm to 15mm;
the surface layer is prepared from the following raw materials in parts by weight:
50 to 70 portions of water
200 to 250 parts of cement-based emulsion
150 to 250 portions of white cement
300 to 350 parts of triple superphosphate
140 to 200 portions of snow white
1 to 2 parts of water reducing agent
2 to 3 parts of curing agent
2 to 3 parts of thickening agent
3 to 10 parts of retarder;
the base layer is prepared from the following raw materials in parts by weight:
200 to 300 parts of water
50 to 60 parts of cement-based emulsion
300 to 400 portions of white cement
200 to 300 parts of triple superphosphate
3 to 5 parts of water reducing agent
2 to 3 parts of thickening agent
35 to 45 parts of perlite
1 to 2 parts of defoaming agent.
2. The light soft stone slab of claim 1, further comprising an intermediate layer, wherein the intermediate layer is located between the surface layer and the base layer, the intermediate layer is laminated with the surface layer and the base layer, and the intermediate layer is made of raw materials comprising, in parts by weight:
80 to 120 portions of water
2 to 4 parts of fiber
250 to 350 parts of calcium formate
450 to 550 parts of quartz sand
80 to 120 parts of a binder.
3. The light soft stone panel as recited in claim 2, wherein the face layer, the intermediate layer and the base layer are laminated after being combined in a slurry state.
4. The lightweight soft stone panel according to claim 2, wherein the snowflakes in the face layer are compounded from snowflakes comprising two or more finenesses.
5. The lightweight soft stone slab as claimed in claim 2, wherein the snowflake white is prepared by mixing 40-80 mesh snowflake white and 80-120 mesh snowflake white according to a proportion, and the mixing proportion of the 40-80 mesh snowflake white to the 80-120 mesh snowflake white is 40-80 mesh snowflake white: 80-120 mesh snowflake white = 1.2-1.8.
6. A soft, lightweight stone panel as claimed in claim 2, wherein the fibres of the middle layer comprise cellulose and cellulose filaments, the cellulose filaments being 9mm, the ratio of cellulose to 9mm being 1.
7. The light soft stone board as claimed in claim 1, wherein the thickening agent in the surface layer raw material and the base layer raw material is sodium alginate;
the retarder in the surface layer is white sugar in an amount of 3 to 4 parts by weight in summer, and calcium formate in an amount of 9 to 10 parts by weight in winter.
8. A method for producing a soft lightweight stone panel as claimed in claims 1 to 7, comprising the steps of:
preparing slurry:
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, snow white, a water reducing agent, a curing agent, a thickening agent and a retarder to prepare surface layer slurry;
uniformly mixing water, fibers, calcium formate, quartz sand and an adhesive to prepare intermediate layer slurry;
uniformly mixing water, cement-based emulsion, white cement, heavy calcium carbonate, a water reducing agent, a thickening agent, perlite and a defoaming agent to prepare base layer slurry;
feeding:
(1) Flatly arranging the base layer slurry in a mould according to the required thickness to obtain a base layer blank;
(2) Flatly covering the middle layer slurry on the base layer blank in the mould according to the required thickness to obtain a base layer-middle layer blank;
(3) Flatly covering the surface layer slurry on the middle layer of the base layer-middle layer blank in the mold according to the required thickness to obtain a light soft stone slab blank;
production: and carrying out hot die pressing production on the light soft stone slab blank to obtain the light soft stone slab.
9. The method for preparing the light soft stone slab as claimed in claim 8, wherein in the step of preparing the slurry, the viscosity of the surface layer slurry is controlled to be within 85KU to 100KU;
in the feeding step, the die is positioned in an oven, the temperature of the oven is controlled to be 60-100 ℃, and the humidity is controlled to be 30-50%.
10. The method for preparing a soft stone slab as claimed in claim 8, wherein in the step of preparing slurry, after the surface layer slurry mixing reaction is completed, one of white toner or color toner or both of white toner and color toner or two or more of color toners with different colors are added;
the white toner comprises titanium white slurry, and the titanium white slurry is prepared from the following raw materials in parts by weight:
200 to 300 parts of water
2 to 3 parts of dispersant
1 to 2 portions of wetting agent
AMP-95.3 to 0.8 portion
1 to 2 portions of defoaming agent
250 to 350 parts of titanium dioxide
2 to 3 parts of cellulose;
the fineness of the titanium white slurry is 40um to 60um.
CN202211120667.6A 2022-09-15 2022-09-15 Light soft stone slab and preparation method thereof Pending CN115196928A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994380A (en) * 2010-10-15 2011-03-30 北京工业大学 Flexible outer wall face brick
CN103058610A (en) * 2013-01-11 2013-04-24 福建创能新材料科技有限公司 Environment-friendly multifunctional energy-saving inorganic modified flexible decorative sheet for buildings and preparation method of sheet
CN106543828A (en) * 2016-12-09 2017-03-29 辽宁法库陶瓷工程技术研究中心 Flexible porcelain tendre tapestry brick prepared by a kind of utilization gangue and preparation method thereof
CN109485346A (en) * 2018-12-25 2019-03-19 佛山科学技术学院 A kind of ceramic tile marble adhesive and preparation method thereof
CN113858719A (en) * 2021-09-25 2021-12-31 北京莱恩斯新材料科技有限公司 Composite heat-insulation flexible facing sheet for building wall and processing technology and application thereof
CN114133212A (en) * 2021-12-06 2022-03-04 惠州市创鑫隆实业有限公司 Integrally-formed soft stone brick and preparation process thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994380A (en) * 2010-10-15 2011-03-30 北京工业大学 Flexible outer wall face brick
CN103058610A (en) * 2013-01-11 2013-04-24 福建创能新材料科技有限公司 Environment-friendly multifunctional energy-saving inorganic modified flexible decorative sheet for buildings and preparation method of sheet
CN106543828A (en) * 2016-12-09 2017-03-29 辽宁法库陶瓷工程技术研究中心 Flexible porcelain tendre tapestry brick prepared by a kind of utilization gangue and preparation method thereof
CN109485346A (en) * 2018-12-25 2019-03-19 佛山科学技术学院 A kind of ceramic tile marble adhesive and preparation method thereof
CN113858719A (en) * 2021-09-25 2021-12-31 北京莱恩斯新材料科技有限公司 Composite heat-insulation flexible facing sheet for building wall and processing technology and application thereof
CN114133212A (en) * 2021-12-06 2022-03-04 惠州市创鑫隆实业有限公司 Integrally-formed soft stone brick and preparation process thereof

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Application publication date: 20221018