Magnesium gel fireproof decorative plate and preparation method thereof

Abstract

The invention discloses a preparation method of a magnesium gel fireproof decorative plate. The preparation method comprises the following steps: step 1, preparing an embossment decorative template for later use; step 2, preparing a batter admixture for later use; 3, 100 kg of magnesium oxide and 85-100 kg of magnesium chloride liquid or magnesium sulfate liquid are poured into a mixer to be mixed for 3 min, the flour paste admixture and the magnesite modifier are poured into the mixer to be mixed at a high speed for 5 min, slurry is obtained, and the obtained slurry is put into a feeding funnel; 4, the prepared embossment decoration template is placed on a plate making machine, a conveying belt is started, and the slurry in the funnel is gradually placed on the template; 5, a layer of glass fiber cloth is laid on the surface of the slurry, the thickness is adjusted through an extrusion roller, the glass fiber cloth is flattened, a common fireproof plate production procedure is carried out after pressing, and a fireproof plate prototype is obtained; and 6, curing and maintaining to obtain the magnesium gel fireproof decorative plate. A fireproof base plate does not need to be used for bottoming, any decoration material does not need to be compounded, and the A1 fireproof standard can be met.

Description

Technical Field

[0001] The present invention belongs to the field of preparation of fireproof decorative boards, and particularly relates to a magnesia cement fireproof decorative board and a preparation method thereof. Background Art

[0002] A fireproof decorative board is a decorative material made of non-combustible materials, mainly used to improve the fireproof performance of buildings. At present, in the process of preparing conventional fireproof decorative boards, it is necessary to lay a fireproof substrate at the bottom and compound decorative materials on the surface. However, only the fireproof substrate is the truly fireproof part of such fireproof decorative boards. In case of a fire, the decorative materials compounded on the surface will still burn, thus posing a safety hazard. Summary of the Invention

[0003] The technical problem to be solved by the present invention is aimed at the deficiencies of the above-mentioned prior art, and provides a magnesia cement fireproof decorative board and a preparation method thereof, which do not need to lay a fireproof substrate at the bottom and do not need to compound any decorative materials, and can reach the A1 fireproof standard.

[0004] The technical solution adopted by the present invention is: a preparation method of a magnesia cement fireproof decorative board, comprising the following steps:

[0005] Step 1: Prepare a relief decorative template for later use;

[0006] Step 2: Prepare a surface slurry admixture for later use;

[0007] Step 3: Pour 100 kg of magnesium oxide and 85 kg - 100 kg of magnesium chloride liquid or magnesium sulfate liquid into a mixer and mix for 3 minutes, then pour the surface slurry admixture and magnesia modified agent prepared in Step 2 and mix at high speed for 5 minutes to obtain a slurry, and put the obtained slurry into a feeding funnel;

[0008] Step 4: Place the relief decorative template prepared in Step 1 on the conveyor belt of a plate-making machine, start the conveyor belt, and gradually place the slurry in the funnel on the template;

[0009] Step 5: Lay a layer of fiberglass cloth on the surface of the slurry, adjust the thickness with an extrusion roller and level it, and after pressing, enter the production process of ordinary fireproof boards to obtain a fireproof board prototype;

[0010] Step 6: After curing and maintenance, obtain a magnesia cement fireproof decorative board.

[0011] In one embodiment, in Step 1, the preparation of the relief decorative template is as follows:

[0012] Select a decorative film, a rigid shaping material, and a substrate material for later use;

[0013] Place the selected substrate on a workbench, and roll and apply the rigid shaping material on the substrate by metering;

[0014] Cover the selected decorative film on the hard setting material and roll it to expel air. After the hard setting material is cured in an oxygen-free environment, remove the decorative film to obtain an embossed decorative template.

[0015] In one embodiment, the decorative film is a PVC embossed decorative film or a PET embossed decorative film.

[0016] In one embodiment, the hard setting material is an unsaturated resin.

[0017] In one embodiment, the substrate is a PVC board or an ABS board.

[0018] In one embodiment, in step two, prepare the surface sizing admixture as follows:

[0019] Pour 40 to 45 parts of inorganic adhesive powder one, 20 to 25 parts of inorganic adhesive powder two, 15 to 20 parts of inorganic adhesive powder three, 15 to 20 parts of inorganic adhesive powder four, and 5 to 10 parts of inorganic defoaming powder into a mixer and mix evenly to obtain the surface sizing admixture.

[0020] The present invention also discloses a magnesia cement fireproof decorative board, which is prepared by the preparation method of the magnesia cement fireproof decorative board.

[0021] The beneficial effects of the present invention are as follows: There is no need to use a fireproof substrate for priming, and there is no need to laminate any decorative materials, and the fireproof standard of A1 can be achieved. Detailed implementation manners

[0022] The present invention will be further described in detail below in conjunction with specific embodiments.

[0023] The present invention discloses a preparation method of a magnesia cement fireproof decorative board, including the following steps:

[0024] Step 1: Prepare an embossed decorative template for standby;

[0025] Step 2: Prepare the surface sizing admixture for standby;

[0026] Step 3: Pour 100 kg of magnesium oxide and 85 to 100 kg of magnesium chloride liquid or magnesium sulfate liquid into a mixer and mix for 3 minutes, then pour the surface sizing admixture and magnesia modified agent prepared in step two and mix at high speed for 5 minutes to obtain a slurry, and put the obtained slurry into a feeding funnel;

[0027] Step 4: Place the embossed decorative template prepared in step one on the conveyor belt of the board making machine, start the conveyor belt, and gradually place the slurry in the funnel on the template;

[0028] Step 5: Lay a layer of fiberglass cloth on the surface of the slurry, adjust the thickness with an extrusion roller and level it. After pressing, enter the production process of ordinary fireproof boards to obtain the prototype of the fireproof board;

[0029] Step 6: After curing and maintenance, obtain the magnesia cementitious fireproof decorative board.

[0030] In this embodiment, in Step 1, to prepare the relief decorative template, the specific steps are as follows:

[0031] Select the decorative film, rigid shaping material and substrate material for standby;

[0032] Place the selected substrate on the workbench and roll-coat the rigid shaping material on the substrate;

[0033] Cover the selected decorative film on the rigid shaping material and roll-press to expel air. After the rigid shaping material is cured by oxygen isolation, remove the decorative film to obtain the relief decorative template.

[0034] In this embodiment, the decorative film is a PVC relief embossed decorative film or a PET relief embossed decorative film.

[0035] In this embodiment, the rigid shaping material is an unsaturated resin.

[0036] In this embodiment, the substrate is a PVC board or an ABS board.

[0037] In this embodiment, in Step 2, to prepare the surface slurry admixture, the specific steps are as follows:

[0038] Pour 40 - 45 parts of inorganic glue powder 1, 20 - 25 parts of inorganic glue powder 2, 15 - 20 parts of inorganic glue powder 3, 15 - 20 parts of inorganic glue powder 4 and 5 - 10 parts of inorganic defoaming powder into a mixer and mix evenly to obtain the surface slurry admixture.

[0039] The present invention also discloses a magnesia cementitious fireproof decorative board, which is prepared by the preparation method of the magnesia cementitious fireproof decorative board.

[0040] The inorganic glue powder 1, inorganic glue powder 2, inorganic glue powder 3 and inorganic glue powder 4 described in this application have the functions of increasing strength and toughness, crack resistance, anti-aging, anti-corrosion, anti-alkali return and anti-deformation. Their specific functions are determined according to the design requirements of the board.

[0041] For the magnesia cementitious fireproof decorative board prepared in this application, each index of the combustion performance grade is detected, as shown in Table 1 specifically:

[0042] Table 1 Combustion Performance Grade Detection Table

[0043]

[0044] For the magnesia cement fireproof decorative board prepared in this application, the formaldehyde release amount is specifically shown in Table 2 as follows:

[0045] Serial number Test item Technical requirement Unit Measured value Conclusion 1 Formaldehyde emission ≤0.124 <![CDATA[mg / m 3 > 0.011 Qualified

[0046] The above embodiments only represent the specific implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A preparation method of a magnesia-based gelled fireproof decorative board, characterized in that, It includes the following steps: Step 1: Prepare a relief decoration template for standby; Step 2: Prepare a surface sizing admixture for standby; Step 3: Pour 100 kg of magnesium oxide and 85 kg - 100 kg of magnesium chloride liquid or magnesium sulfate liquid into a mixer and mix for 3 minutes, then pour in the surface sizing admixture and magnesia modified agent prepared in Step 2 and mix at high speed for 5 minutes to obtain a slurry, and put the obtained slurry into a feeding funnel; Step 4: Place the relief decoration template prepared in Step 1 on the conveyor belt of the plate-making machine, start the conveyor belt, and gradually put the slurry in the funnel onto the template; Step 5: Lay a layer of fiberglass cloth on the surface of the slurry, adjust the thickness with a pressing roller and smooth it, and after pressing, enter the production process of ordinary fireproof boards to obtain a fireproof board prototype; Step 6: After curing and maintenance, a magnesia cementitious fireproof decorative board is obtained.

2. The liquid metering device according to claim 1, characterized in that, In Step 1, to prepare the relief decoration template, specifically as follows: Select a decorative film, a rigid shaping material, and a substrate material for standby; Place the selected substrate on the workbench, and roll and apply the rigid shaping material after metering and blending onto the substrate; Lay the selected decorative film on top of the rigid shaping material, roll and press to remove air, and after the rigid shaping material cures by oxygen isolation, remove the decorative film to obtain the relief decoration template.

3. The preparation method of a magnesia cement fireproof decorative board according to claim 2, characterized in that, The decorative film is a PVC relief embossed decorative film or a PET relief embossed decorative film.

4. The preparation method of a magnesia-based gelled fireproof decorative board according to claim 2, characterized in that, The rigid shaping material is an unsaturated resin.

5. The preparation method of a magnesia cement fireproof decorative board according to claim 2, characterized in that, The substrate is a PVC board or an ABS board.

6. The preparation method of a magnesia cement fireproof decorative board according to claim 1, characterized in that, In Step 2, to prepare the surface sizing admixture, specifically as follows: Pour 40 parts - 45 parts of inorganic glue powder one, 20 parts - 25 parts of inorganic glue powder two, 15 parts - 20 parts of inorganic glue powder three, 15 parts - 20 parts of inorganic glue powder four, and 5 parts - 10 parts of inorganic defoaming powder into a mixer and mix evenly to obtain the surface sizing admixture.

7. A magnesia cement fireproof decorative board, characterized in that, It is prepared by the preparation method of the magnesia cementitious fireproof decorative board described in any one of claims 1 - 6.

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