CN112576003A - Magnesium oxide composite floor and manufacturing process thereof - Google Patents
Magnesium oxide composite floor and manufacturing process thereof Download PDFInfo
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- CN112576003A CN112576003A CN202011451310.7A CN202011451310A CN112576003A CN 112576003 A CN112576003 A CN 112576003A CN 202011451310 A CN202011451310 A CN 202011451310A CN 112576003 A CN112576003 A CN 112576003A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
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- 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
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
- B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
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- 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
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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
- C04B28/30—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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
-
- 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
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- Civil Engineering (AREA)
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a magnesium oxide composite floor and a manufacturing process thereof, wherein the floor sequentially comprises the following components from top to bottom: the surface wear-resistant layer, the surface sizing layer, the upper glass fiber gridding cloth layer, the upper glass fiber short fiber felt layer, the main material layer, the lower glass fiber short fiber felt layer, the lower glass fiber gridding cloth layer, the bottom sizing layer and the bottom wear-resistant layer; the main material layer contains magnesium oxide, magnesium chloride solution, coarse whiting powder, powder and modifier; the surface slurry layer contains magnesium oxide, magnesium chloride solution, fossil powder, powder and modifier; the bottom slurry layer contains magnesium oxide, magnesium chloride solution, fossil powder, powder and modifier; the floor has simple structure, simple and easy manufacturing process, and the manufactured floor has good fire resistance, moisture resistance and water resistance, high strength and difficult deformation.
Description
Technical Field
The invention relates to a floor, in particular to a magnesium oxide composite floor and a manufacturing process thereof.
Background
The floor of a house floor or floor is typically made of wood or other material. The classification on floor has a lot, has according to the material structure classification: solid wood floors, laminate wood floors, three-layer solid wood laminate floors, bamboo and wood floors, anti-corrosion floors, cork floors, and the most popular multilayer solid wood laminate floors at present; classified by use are: household floors, commercial floors, antistatic floors, outdoor floors, floors special for stage dancing, floors special for sports stadiums, floors special for track and field, and the like; the environmental protection grades are classified as follows: e0 grade floor, E1 grade floor, F4 grade floor, JAS star standard F4 star floor, and the like.
With the increasing requirements of people on living and office environments, indoor floors are more and more studied. At present, the floor boards sold in the market are mainly solid wood floor boards and composite floor boards. The solid wood floor needs to be erected when being installed, the surface needs to be polished and painted, the installation is troublesome, and the price is high; and current laminate flooring does not have many when using waterproof dampproofing, yielding, wear-resisting and some listed problems such as fire behavior is poor, and life is shorter, among the prior art, patent application number is: 200910027269.8, grant publication No. CN101564922B, patent name: a multi-purpose composite reinforced plate features that its surface is not wear-resistant, easy to corrode and not easy to clean, and its production process is simple.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provide the magnesium oxide composite floor which is fireproof, moistureproof, good in water resistance, high in strength and not easy to deform, and provide the manufacturing process of the magnesium oxide composite floor.
In order to achieve the above object, the magnesium oxide composite floor of the present invention comprises, in order from top to bottom: the surface wear-resistant layer, the surface sizing layer, the upper glass fiber gridding cloth layer, the upper glass fiber short fiber felt layer, the main material layer, the lower glass fiber short fiber felt layer, the lower glass fiber gridding cloth layer, the bottom sizing layer and the bottom wear-resistant layer;
the main material layer contains 35-40% of magnesium oxide, 30-32% of magnesium chloride solution, 13-15% of coarse whiting powder, 13-15% of powder and 2-5% of modifier by mass percent;
the surface slurry layer contains 40-45% of magnesium oxide, 25-30% of magnesium chloride solution, 20-22% of fossil powder, 5-8% of powder and 2-4% of modifier by mass percent;
the bottom slurry layer contains 40-44% of magnesium oxide, 25-30% of magnesium chloride solution, 25-27% of fossil powder, 1-3% of powder and 2-4% of modifier by mass percent. The technical scheme of the invention is further defined as follows:
further, in the magnesium oxide composite floor, the modifier is a mixture of phosphoric acid and silane.
In the magnesium oxide composite floor, the surface wear-resistant layer and the bottom wear-resistant layer are one of a melamine layer, a solid wood floor layer or a composite floor surface layer.
In the magnesium oxide composite floor, the powder material is one of wood dust, bamboo powder, wood powder and perlite powder.
In the magnesium oxide composite floor, the thickness of the magnesium oxide composite floor is 3mm-18mm, and the preferred thickness is 6mm +/-0.03 mm.
In the magnesium oxide composite floor, the four sides of the magnesium oxide composite floor are also provided with tongue-and-groove grooves which are mutually connected and assembled.
The invention also designs a manufacturing process of the magnesium oxide composite floor, which specifically comprises the following steps:
step one, adding 40-44% of bottom slurry layer raw material magnesium oxide, 25-30% of magnesium chloride solution, 25-27% of fossil powder, 1-3% of powder and 2-4% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the raw material magnesium oxide, the magnesium chloride solution, the fossil powder, the powder and the modifier to obtain bottom slurry, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step two, laying the prepared bottom slurry in the step one on a template to form a bottom slurry layer;
sequentially laying the glass fiber mesh cloth and the glass fiber chopped fiber felt on the base slurry layer to form a lower glass fiber mesh cloth layer and a lower glass fiber chopped fiber felt layer respectively;
step four, adding 35-40% of raw material magnesium oxide, 30-32% of magnesium chloride solution, 13-15% of coarse whiting powder, 13-15% of powder and 2-5% of modifier in the main material layer in sequence by mass percentage into a stirring pot, and stirring to fully and uniformly mix the raw material magnesium oxide, the magnesium chloride solution, the coarse whiting powder, the powder and the modifier to obtain main material slurry, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step five, laying the main body slurry stirred in the step four on the lower glass fiber chopped fiber felt layer in the step three to form a main body material layer;
step six, sequentially laying a glass fiber chopped fiber felt and a glass fiber gridding cloth on the main material layer to respectively form an upper glass fiber chopped fiber felt layer and an upper glass fiber gridding cloth layer, and then pressing the glass fiber chopped fiber felt layer and the upper glass fiber gridding cloth layer in a roller;
step seven, adding 40-45% of magnesium oxide, 25-30% of magnesium chloride solution, 20-22% of fossil powder, 5-8% of powder and 2-4% of modifier into a stirring pot in sequence according to the mass percentage, and stirring to fully and uniformly mix the materials to obtain flour paste, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step eight, paving the surface sizing agent prepared in the step seven on the upper glass fiber gridding cloth layer to form a surface sizing layer to obtain a board;
step nine, putting the board manufactured in the step eight into a curing room for curing, controlling the temperature of the curing room to be 40-45 ℃, keeping the humidity of the curing room to be 85% -90%, and ensuring the curing time to be more than 5 h;
step ten, demolding the boards cured in the step nine, and then putting the boards into a curing room at the temperature of 35-40 ℃ for curing for more than 48 hours;
step eleven, feeding the maintained board into a sander to sand and smooth the upper surface of the board;
step twelve, cutting according to the floor size requirement;
thirteen, attaching a surface wear-resistant layer to the upper surface of the cut board, attaching a bottom wear-resistant layer to the lower surface of the board, wherein the surface wear-resistant layer and the bottom wear-resistant layer are one of a melamine layer, a solid wood floor layer or a composite floor surface layer;
fourteen, opening tongue-and-groove grooves on four sides of the board adhered with the surface wear-resistant layer and the bottom wear-resistant layer to obtain a finished product of the magnesium oxide composite floor.
In the manufacturing process of the magnesium oxide composite floor, the density of the composite floor is 1250-3。
In the manufacturing process of the magnesium oxide composite floor, the water content of the composite floor is less than 6 percent; the water absorption of the composite floor is less than 6%.
In the manufacturing process of the magnesium oxide composite floor, after the composite floor is placed in an oven at 156 ℃ for 10 hours and placed in water at the ambient temperature for 48 hours, the crimpness is less than 0.5mm, and the swelling/shrinking is less than 0.2 percent; the bending strength of the composite floor is less than 10% after the composite floor is immersed in water at 60 ℃ for 48 hours; the leached chloride ion of the composite floor is less than 4 percent.
The invention has the beneficial effects that:
the surface wear-resistant layer and the bottom wear-resistant layer adopt melamine layers, solid wood floor layers or composite floor surface layers, the melamine has high hardness, wear resistance, heat resistance and good flame retardance and fire resistance, can resist corrosion of general acid, alkali, grease and alcohol, and has flat surfaces, difficult deformation and easy maintenance and cleaning.
The composite floor adopts the upper and lower glass fiber gridding cloth layers, the glass fiber gridding cloth has good alkali resistance, flexibility and high tensile resistance in the longitudinal direction and the latitudinal direction, the strength is high, the corrosion resistance is good, the cost is low in a reinforcing system, the construction is convenient, the operation performance is good, and the composite floor is suitable for various reinforcing systems and is beneficial to improving the strength, the corrosion resistance, the alkali resistance, the flexibility and the high tensile resistance in the longitudinal direction and the latitudinal direction; the upper and lower glass fiber chopped fiber felt layers are adopted, so that the glass fiber chopped fiber felt has the advantages of smooth surface, good dimensional stability, good uniformity, fire resistance, mildew resistance and water resistance; the fireproof performance, the mildew resistance and the water resistance of the floor are improved; the invention adopts the combination of the upper glass fiber grid cloth layer, the lower glass fiber grid cloth layer and the glass fiber short fiber felt layer to maintain the original advantages of the upper glass fiber grid cloth layer, the lower glass fiber grid cloth layer and the glass fiber short fiber felt layer, enhances the strength during splicing, avoids the weakness and the easy breakage during the splicing of the existing floor, prolongs the service life and reduces the cost.
The main material layer of the composite floor comprises magnesium oxide, magnesium chloride solution, coarse whiting powder, powder and a modifier which are mixed, an inorganic material is used as the main material layer of the floor, the main material layer prepared from the materials has the advantages of fire prevention, water prevention, insect prevention, bacteriostasis, heat resistance, noise reduction and the like, keels do not need to be erected, the composite floor also has good moisture resistance, and meanwhile, the thickness and the density of the main material layer directly influence the quality of the composite floor and also directly influence the quality of the composite floorI.e. the quality of the final floor is affected, which, if too high, increases the difficulty in transporting the floor; if the weight is too low, the floor is not favorable to be composed. Therefore, the density of the main material layer is strictly controlled to be 1250-3And 3mm-18mm, preferably 6mm +/-0.03 mm can be manufactured on the total thickness of the magnesium oxide composite floor to obtain the floor with moderate quality.
The surface slurry layer and the bottom slurry layer both contain fossil powder, and the fossil powder is adopted and has good fluidity, so that the compactness of the interior of the plate is improved.
The floor is compounded by a multilayer structure, and has the advantages of good strength, fire resistance, mildew resistance, water resistance, light weight, acid resistance and no formaldehyde.
The manufacturing process is simple and easy to implement, and the upper surface and the lower surface of the board are respectively provided with the wear-resistant layer and the bottom wear-resistant layer, so that the magnesium oxide composite floor manufactured by the manufacturing process has high wear resistance, heat resistance, flame retardance and fire resistance, can resist corrosion of general acid, alkali, grease and alcohol, has a flat surface, is difficult to deform, and is easy to maintain and clean.
In the manufacturing process, raw materials of magnesium oxide, magnesium chloride solution, heavy calcium powder, powder and a modifier in a main material layer are sequentially added into a stirring pot and stirred, so that the raw materials are fully and uniformly mixed to obtain main material slurry; the stirred main body slurry is paved on the lower glass fiber short fiber felt layer to form a main body material layer, inorganic materials such as magnesium oxide, magnesium chloride solution, heavy calcium powder, powder and modifier have the advantages of good fire resistance, water resistance, insect prevention, bacteria resistance, heat resistance, noise reduction and the like, so that the magnesium oxide composite floor manufactured by the manufacturing process has the advantages of good fire resistance, water resistance, insect prevention, bacteria resistance, heat resistance, noise reduction and the like,
the manufacturing process of the invention can be used for manufacturing the magnesium oxide composite place with good strength, fire resistance, mildew resistance and water resistance, light weight, acid resistance and no formaldehyde.
Drawings
FIG. 1 is a schematic structural diagram of a magnesium oxide composite floor according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
in the figure: 1-surface wear-resistant layer, 2-surface sizing layer, 3-upper glass fiber gridding cloth layer, 4-upper glass fiber chopped fiber felt layer, 5-main material layer, 6-lower glass fiber chopped fiber felt layer, 7-lower glass fiber gridding cloth layer, 8-bottom sizing layer, 9-bottom wear-resistant layer and 10-rabbet groove.
Detailed Description
Example 1
The magnesium oxide composite floor provided by the embodiment has a structure as shown in fig. 1-2, and sequentially comprises from top to bottom: the glass fiber fabric comprises a surface wear-resistant layer 1, a surface sizing layer 2, an upper glass fiber gridding cloth layer 3, an upper glass fiber chopped fiber felt layer 4, a main body material layer 5, a lower glass fiber chopped fiber felt layer 6, a lower glass fiber gridding cloth layer 7, a bottom sizing layer 8 and a bottom wear-resistant layer 9;
the main material layer 5 comprises 40% of magnesium oxide, 30% of magnesium chloride solution, 15% of triple superphosphate powder, 13% of powder and 2% of modifier by mass percent;
the surface slurry layer 2 contains 40% of magnesium oxide, 30% of magnesium chloride solution, 20% of fossil powder, 8% of powder and 2% of modifier by mass percent;
the bottom slurry layer 8 contains 40% of magnesium oxide, 30% of magnesium chloride solution, 25% of fossil powder, 3% of powder and 2% of modifier by mass percent.
In this example, the modifier is a mixture of phosphoric acid and silane.
In the embodiment, the surface wear-resistant layer 1 and the bottom wear-resistant layer 9 are melamine layers; the powder is perlite.
In the embodiment, the thickness of the composite floor is 6mm, and the thickness error of the floor is +/-0.03 mm.
In this embodiment, the four sides of the composite floor are provided with grooves 10 which are jointed and assembled with each other.
Example 2
The magnesium oxide composite floor provided by the embodiment has a structure as shown in fig. 1-2, and sequentially comprises from top to bottom: the glass fiber fabric comprises a surface wear-resistant layer 1, a surface sizing layer 2, an upper glass fiber gridding cloth layer 3, an upper glass fiber chopped fiber felt layer 4, a main body material layer 5, a lower glass fiber chopped fiber felt layer 6, a lower glass fiber gridding cloth layer 7, a bottom sizing layer 8 and a bottom wear-resistant layer 9;
the main material layer 5 comprises 35% of magnesium oxide, 32% of magnesium chloride solution, 13% of coarse whiting powder, 15% of powder and 5% of modifier by mass percent;
the surface slurry layer 2 contains 45% of magnesium oxide, 25% of magnesium chloride solution, 22% of fossil powder, 5% of powder and 3% of modifier by mass percent;
the bottom slurry layer 8 contains 44% of magnesium oxide, 25% of magnesium chloride solution, 27% of fossil powder, 1% of powder and 3% of modifier by mass percent.
In this example, the modifier is a mixture of phosphoric acid and silane.
In the embodiment, the surface wear-resistant layer 1 and the bottom wear-resistant layer 9 are melamine layers; the powder is wood dust.
In the embodiment, the thickness of the composite floor is 6mm, and the thickness error of the floor is +/-0.03 mm.
In this embodiment, the four sides of the composite floor are provided with grooves 10 which are jointed and assembled with each other.
Example 3
The magnesium oxide composite floor provided by the embodiment has a structure as shown in fig. 1-2, and sequentially comprises from top to bottom: the glass fiber fabric comprises a surface wear-resistant layer 1, a surface sizing layer 2, an upper glass fiber gridding cloth layer 3, an upper glass fiber chopped fiber felt layer 4, a main body material layer 5, a lower glass fiber chopped fiber felt layer 6, a lower glass fiber gridding cloth layer 7, a bottom sizing layer 8 and a bottom wear-resistant layer 9;
the main material layer 5 contains 38% of magnesium oxide, 31% of magnesium chloride solution, 14% of coarse whiting powder, 14% of powder and 3% of modifier by mass percent;
the surface slurry layer 2 contains 42 percent of magnesium oxide, 27 percent of magnesium chloride solution, 21 percent of fossil powder, 6 percent of powder and 4 percent of modifier by mass percent;
the bottom slurry layer 8 contains 41% of magnesium oxide, 27% of magnesium chloride solution, 26% of fossil powder, 2% of powder and 4% of modifier by mass percent.
In this example, the modifier is a mixture of phosphoric acid and silane.
In this embodiment, the top wear layer 1 and the bottom wear layer 9 are composite floor surface layers.
In this example, the powder is wood flour.
In the embodiment, the thickness of the composite floor is 6mm, and the thickness error of the floor is +/-0.03 mm.
In this embodiment, the four sides of the composite floor are provided with grooves 10 which are jointed and assembled with each other.
Example 4
The embodiment provides a manufacturing process of a magnesium oxide composite floor, which can be used for manufacturing the magnesium oxide composite floors of the embodiments 1 to 3, and specifically comprises the following steps:
step one, adding 40% of bottom slurry layer raw material magnesium oxide, 30% of magnesium chloride solution, 25% of fossil powder, 3% of powder perlite and 2% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the materials to obtain bottom slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step two, laying the prepared bottom slurry in the step one on a template to form a bottom slurry layer;
sequentially laying the glass fiber mesh cloth and the glass fiber chopped fiber felt on the base slurry layer to form a lower glass fiber mesh cloth layer and a lower glass fiber chopped fiber felt layer respectively;
step four, adding 40% of raw material magnesium oxide, 30% of magnesium chloride solution, 15% of heavy calcium powder, 13% of powder perlite and 2% of modifier of the main material layer into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the raw material magnesium oxide, the magnesium chloride solution, the heavy calcium powder and the modifier to obtain main material slurry;
step five, laying the main body slurry stirred in the step four on the lower glass fiber chopped fiber felt layer in the step three to form a main body material layer;
step six, sequentially laying a glass fiber chopped fiber felt and a glass fiber gridding cloth on a main material layer to form an upper glass fiber chopped fiber felt layer and an upper glass fiber gridding cloth layer respectively, then pressing the glass fiber chopped fiber felt layer and the upper glass fiber gridding cloth layer in a roller according to the prior art, wherein a little penetration and blending exist between every two adjacent layers during pressing in the industry, the conventional condition of the prior art is met, and the pressing thickness is controlled to be 4.5 mm;
step seven, adding 40% of the raw material magnesium oxide of the surface slurry layer, 30% of magnesium chloride solution, 20% of fossil powder, 8% of powder perlite and 2% of modifier into a stirring pot in sequence according to mass percentage, and stirring to obtain surface slurry by fully and uniformly mixing;
step eight, paving the surface sizing agent prepared in the step seven on the upper glass fiber gridding cloth layer to form a surface sizing layer to obtain a board, wherein the thickness of the surface sizing layer is controlled to be 1mm, and the thickness of the board is controlled to be 5.5 mm;
step nine, putting the board manufactured in the step eight into a curing room for curing, controlling the temperature of the curing room at 40 ℃ and the humidity of the curing room at 90%, and ensuring that the curing time is 8 h;
step ten, demolding the boards cured in the step nine, then placing the boards at the temperature of 35 ℃, and maintaining the boards in a curing room for 72 hours;
step eleven, feeding the maintained board into a sander to sand and flatten the upper surface of the board, namely the surface of the surface sizing layer, and keeping the thickness of the sanded board within 5 +/-0.2 mm;
step twelve, cutting according to the floor size requirement;
thirteen, attaching a surface wear-resistant layer to the upper surface of the cut board, namely the surface of the surface slurry layer, attaching a bottom wear-resistant layer to the lower surface of the board, namely the surface of the bottom slurry layer, wherein the surface wear-resistant layer and the bottom wear-resistant layer are melamine layers, the thickness of each of the surface wear-resistant layer and the bottom wear-resistant layer is 0.5mm, and the total thickness of the floor is 6 mm;
fourteen, opening tongue-and-groove grooves on four sides of the board adhered with the upper wear-resistant layer and the bottom wear-resistant layer to obtain a magnesium oxide composite floor finished product as shown in the figure 1-2.
In this embodiment, the density of the laminate flooring is 1250kg/m3。
Example 5
The embodiment provides a manufacturing process of a magnesium oxide composite floor, which can be used for manufacturing the magnesium oxide composite floors of the embodiments 1 to 3, and specifically comprises the following steps:
step one, adding 44% of bottom slurry layer raw material magnesium oxide, 25% of magnesium chloride solution, 27% of fossil powder, 1% of powder wood dust and 3% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the materials to obtain bottom slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step two, laying the prepared bottom slurry in the step one on a template to form a bottom slurry layer;
sequentially laying the glass fiber mesh cloth and the glass fiber chopped fiber felt on the base slurry layer to form a lower glass fiber mesh cloth layer and a lower glass fiber chopped fiber felt layer respectively;
step four, adding 35% of raw material magnesium oxide, 32% of magnesium chloride solution, 13% of coarse whiting powder, 15% of powder wood dust and 5% of modifier in the main material layer in sequence by mass percentage into a stirring pot, and stirring to fully and uniformly mix the raw material magnesium oxide, the magnesium chloride solution, the coarse whiting powder and the modifier to obtain main material slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step five, laying the main body slurry stirred in the step four on the lower glass fiber chopped fiber felt layer in the step three to form a main body material layer;
step six, sequentially laying a glass fiber chopped fiber felt and a glass fiber gridding cloth on a main material layer to form an upper glass fiber chopped fiber felt layer and an upper glass fiber gridding cloth layer respectively, then pressing the glass fiber chopped fiber felt layer and the upper glass fiber gridding cloth layer in a roller according to the prior art, wherein a little penetration and blending exist between every two adjacent layers during pressing in the industry, the conventional condition of the prior art is met, and the pressing thickness is controlled to be 4.5 mm;
seventhly, adding 45% of the surface slurry layer raw material magnesium oxide, 25% of magnesium chloride solution, 22% of fossil powder, 5% of powder wood dust and 3% of modifier into a stirring pot in sequence by mass percentage, and stirring to fully and uniformly mix the materials to obtain surface slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step eight, paving the surface sizing agent prepared in the step seven on the upper glass fiber gridding cloth layer to form a surface sizing layer to obtain a board, wherein the thickness of the surface sizing layer is controlled to be 1mm, and the thickness of the board is controlled to be 5.5 mm;
step nine, putting the board manufactured in the step eight into a curing room for curing, controlling the temperature of the curing room at 45 ℃ and the humidity of the curing room at 90%, and ensuring that the curing time is 7 h;
step ten, demolding the boards cured in the step nine, then placing the boards at the temperature of 40 ℃, and maintaining the boards in a curing room for 60 hours;
step eleven, feeding the maintained board into a sander to sand and flatten the upper surface of the board, namely the surface of the surface sizing layer, and keeping the thickness of the sanded board within 5 +/-0.2 mm;
step twelve, cutting according to the floor size requirement;
thirteen, attaching a surface wear-resistant layer to the upper surface of the cut board, namely the surface of the surface slurry layer, attaching a bottom wear-resistant layer to the lower surface of the board, namely the surface of the bottom slurry layer, wherein the surface wear-resistant layer 1 and the bottom wear-resistant layer 9 are melamine layers, the thickness of each of the surface wear-resistant layer and the bottom wear-resistant layer is 0.5mm, and the total thickness of the floor is 6 mm;
fourteen, opening tongue-and-groove grooves on four sides of the board adhered with the upper wear-resistant layer and the bottom wear-resistant layer to obtain a magnesium oxide composite floor finished product, as shown in the figure 1-2.
In this embodiment, the density of the composite floor is 1350kg/m3。
Example 6
The embodiment provides a manufacturing process of a magnesium oxide composite floor, which can be used for manufacturing the magnesium oxide composite floors of the embodiments 1 to 3, and specifically comprises the following steps:
step one, adding 41% of bottom slurry layer raw material magnesium oxide, 27% of magnesium chloride solution, 26% of fossil powder, 2% of powder material wood powder and 4% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the materials to obtain bottom slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step two, laying the prepared bottom slurry in the step one on a template to form a bottom slurry layer;
sequentially laying the glass fiber mesh cloth and the glass fiber chopped fiber felt on the base slurry layer to form a lower glass fiber mesh cloth layer and a lower glass fiber chopped fiber felt layer respectively;
step four, adding 38% of raw material magnesium oxide, 31% of magnesium chloride solution, 14% of coarse whiting powder, 14% of wood powder and 3% of modifier of the main material layer in sequence by mass percentage into a stirring pot, and stirring to fully and uniformly mix the raw material magnesium oxide, the magnesium chloride solution, the coarse whiting powder and the modifier to obtain main material slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step five, laying the main body slurry stirred in the step four on the lower glass fiber chopped fiber felt layer in the step three to form a main body material layer;
step six, sequentially laying a glass fiber chopped fiber felt and a glass fiber gridding cloth on a main material layer to form an upper glass fiber chopped fiber felt layer and an upper glass fiber gridding cloth layer respectively, then pressing the glass fiber chopped fiber felt layer and the upper glass fiber gridding cloth layer in a roller according to the prior art, wherein a little penetration and blending exist between every two adjacent layers during pressing in the industry, the conventional condition of the prior art is met, and the pressing thickness is controlled to be 4.5 mm;
seventhly, adding 42% of the surface slurry layer raw material magnesium oxide, 27% of magnesium chloride solution, 21% of fossil powder, 6% of wood powder and 4% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the materials to obtain surface slurry, wherein the modifier is a mixture of phosphoric acid and silane;
step eight, paving the surface sizing agent prepared in the step seven on the upper glass fiber gridding cloth layer to form a surface sizing layer to obtain a board, wherein the thickness of the surface sizing layer is controlled to be 1mm, and the thickness of the board is controlled to be 5.5 mm;
step nine, putting the board manufactured in the step eight into a curing room for curing, controlling the temperature of the curing room at 42 ℃ and the humidity of the curing room at 90%, and ensuring that the curing time is 10 hours;
step ten, demolding the boards cured in the step nine, then placing the boards at the temperature of 38 ℃, and maintaining the boards in a curing room for 66 hours;
step eleven, feeding the maintained board into a sander to sand and flatten the upper surface of the board, namely the surface of the surface sizing layer, and keeping the thickness of the sanded board within 5 +/-0.2 mm;
step twelve, cutting according to the floor size requirement;
thirteen, attaching a surface wear-resistant layer to the upper surface of the cut board, namely the surface of the surface slurry layer, attaching a bottom wear-resistant layer to the lower surface of the board, namely the surface of the bottom slurry layer, wherein the surface wear-resistant layer 1 and the bottom wear-resistant layer 9 are composite floor surface layers, the thickness of the surface wear-resistant layer and the thickness of the bottom wear-resistant layer are respectively 0.5mm, and the total thickness of the floor is 6 mm;
fourteen, opening tongue-and-groove grooves on four sides of the board adhered with the upper wear-resistant layer and the bottom wear-resistant layer to obtain a magnesium oxide composite floor finished product, as shown in the figure 1-2.
In this example, the density of the composite floor board was 1300kg/m3。
The water content of the magnesium oxide composite floor boards in the examples 1 to 6 is less than 6 percent; the water absorption of the magnesium oxide composite floor is less than 6%.
In examples 1-6, the magnesia composite flooring after being placed in an oven at 156 ℃ for 10 hours and in water at ambient temperature for 48 hours, had a curl of less than 0.5mm and a swell/shrink (MD/AMD) of less than 0.2%; the bending strength of the composite floor is less than 10% after the composite floor is immersed in water at 60 ℃ for 48 hours; the composite floor has the meaning of absorbing moisture and returning halogen when the leached chloride ion is less than 4 percent, and the meaning of not returning halogen when the leached chloride ion is less than 4 percent.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (10)
1. The magnesium oxide composite floor is characterized by comprising the following components in sequence from top to bottom: the glass fiber fabric comprises a surface wear-resistant layer (1), a surface sizing layer (2), an upper glass fiber gridding cloth layer (3), an upper glass fiber short fiber felt layer (4), a main material layer (5), a lower glass fiber short fiber felt layer (6), a lower glass fiber gridding cloth layer (7), a bottom sizing layer (8) and a bottom wear-resistant layer (9);
the main material layer (5) comprises 35-40% of magnesium oxide, 30-32% of magnesium chloride solution, 13-15% of coarse whiting powder, 13-15% of powder and 2-5% of modifier by mass percent;
the surface slurry layer (2) comprises 40-45% of magnesium oxide, 25-30% of magnesium chloride solution, 20-22% of fossil powder, 5-8% of powder and 2-4% of modifier by mass percent;
the bottom slurry layer (8) comprises, by mass, 40-44% of magnesium oxide, 25-30% of magnesium chloride solution, 25-27% of fossil powder, 1-3% of powder and 2-4% of a modifier.
2. The magnesium oxide composite flooring according to claim 1, wherein: the modifier is a mixture of phosphoric acid and silane.
3. The magnesium oxide composite flooring according to claim 1, wherein: the surface wear-resistant layer (1) and the bottom wear-resistant layer (9) are one of a melamine layer, a solid wood floor layer or a composite floor surface layer.
4. The magnesium oxide composite flooring according to claim 1, wherein: the powder material is one of wood dust, bamboo powder, wood powder and perlite powder.
5. The magnesium oxide composite flooring according to claim 1, wherein: the thickness of the magnesium oxide composite floor is 3mm-18 mm.
6. The magnesium oxide composite flooring according to claim 1, wherein: the four sides of the magnesium oxide composite floor are also provided with tongue-and-groove grooves (10) which are mutually connected and assembled.
7. The manufacturing process of the magnesium oxide composite floor is characterized by comprising the following steps:
step one, adding 40-44% of bottom slurry layer raw material magnesium oxide, 25-30% of magnesium chloride solution, 25-27% of fossil powder, 1-3% of powder and 2-4% of modifier into a stirring pot in sequence according to mass percentage, and stirring to fully and uniformly mix the raw material magnesium oxide, the fossil powder, the powder and the modifier to obtain bottom slurry, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step two, laying the prepared bottom slurry in the step one on a template to form a bottom slurry layer;
sequentially laying the glass fiber mesh cloth and the glass fiber chopped fiber felt on the base slurry layer to form a lower glass fiber mesh cloth layer and a lower glass fiber chopped fiber felt layer respectively;
step four, adding 35-40% of raw material magnesium oxide, 30-32% of magnesium chloride solution, 13-15% of coarse whiting powder, 13-15% of powder and 2-5% of modifier in a stirring pot in sequence according to mass percentage, stirring the raw material magnesium oxide, the magnesium chloride solution, the coarse whiting powder, the powder and the modifier to obtain main body slurry, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step five, laying the main body slurry stirred in the step four on the lower glass fiber chopped fiber felt layer in the step three to form a main body material layer;
step six, sequentially laying a glass fiber chopped fiber felt and a glass fiber gridding cloth on the main material layer to respectively form an upper glass fiber chopped fiber felt layer and an upper glass fiber gridding cloth layer, and then pressing the glass fiber chopped fiber felt layer and the upper glass fiber gridding cloth layer in a roller;
step seven, adding 40-45% of magnesium oxide, 25-30% of magnesium chloride solution, 20-22% of fossil powder, 5-8% of powder and 2-4% of modifier into a stirring pot in sequence according to the mass percentage, and stirring the mixture to fully and uniformly mix the mixture to obtain the flour paste, wherein the modifier is a mixture of phosphoric acid and silane, and the powder is one of wood chips, bamboo powder, wood powder and perlite powder;
step eight, paving the surface sizing agent prepared in the step seven on the upper glass fiber gridding cloth layer to form a surface sizing layer to obtain a board;
step nine, putting the board manufactured in the step eight into a curing room for curing, controlling the temperature of the curing room to be 40-45 ℃, keeping the humidity of the curing room to be 85% -90%, and ensuring the curing time to be more than 5 h;
step ten, demolding the boards cured in the step nine, and then putting the boards into a curing room at the temperature of 35-40 ℃ for curing for more than 48 hours;
step eleven, feeding the maintained board into a sander to sand and smooth the upper surface of the board;
step twelve, cutting according to the floor size requirement;
thirteen, attaching a wear-resistant layer to the upper surface of the cut board, and attaching a bottom wear-resistant layer to the lower surface of the board, wherein the surface wear-resistant layer and the bottom wear-resistant layer are one of a melamine layer, a solid wood floor layer or a composite floor layer;
fourteen, opening tongue-and-groove grooves on four sides of the board adhered with the surface wear-resistant layer and the bottom wear-resistant layer to obtain a finished product of the magnesium oxide composite floor.
8. The manufacturing process of the magnesium oxide composite floor as claimed in claim 7, wherein: the density of the composite floor is 1250-3。
9. The manufacturing process of the magnesium oxide composite floor as claimed in claim 7, wherein: the water content of the composite floor is less than 6 percent; the water absorption of the composite floor is less than 6%.
10. The manufacturing process of the magnesium oxide composite floor as claimed in claim 7, wherein: after the composite floor is placed in an oven at 156 ℃ for 10 hours and placed in water at the ambient temperature for 48 hours, the crimpness is less than 0.5mm, and the swelling/shrinking is less than 0.2 percent; the bending strength of the composite floor is less than 10% after the composite floor is immersed in water at 60 ℃ for 48 hours; the leached chloride ion of the composite floor is less than 4 percent.
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Application publication date: 20210330 |