AU2021105312A4 - Inorganic cementitious, biomass functional decorative board and preparation method thereof - Google Patents
Inorganic cementitious, biomass functional decorative board and preparation method thereof Download PDFInfo
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- AU2021105312A4 AU2021105312A4 AU2021105312A AU2021105312A AU2021105312A4 AU 2021105312 A4 AU2021105312 A4 AU 2021105312A4 AU 2021105312 A AU2021105312 A AU 2021105312A AU 2021105312 A AU2021105312 A AU 2021105312A AU 2021105312 A4 AU2021105312 A4 AU 2021105312A4
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- inorganic cementitious
- decorative board
- magnesium chloride
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- 239000002028 Biomass Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 5
- 241001330002 Bambuseae Species 0.000 claims abstract description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 5
- 239000011425 bamboo Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 55
- -1 dodecyl alcohol ester Chemical class 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 20
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 18
- 239000000395 magnesium oxide Substances 0.000 claims description 17
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 17
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 10
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 10
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229940044172 calcium formate Drugs 0.000 claims description 10
- 235000019255 calcium formate Nutrition 0.000 claims description 10
- 239000004281 calcium formate Substances 0.000 claims description 10
- 238000007731 hot pressing Methods 0.000 claims description 10
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 10
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000001488 sodium phosphate Substances 0.000 claims description 10
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 10
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 10
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 239000011268 mixed slurry Substances 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 239000002657 fibrous material Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 229920002101 Chitin Polymers 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 7
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 7
- 229920000193 polymethacrylate Polymers 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002522 Wood fibre Polymers 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 3
- 239000002025 wood fiber Substances 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 4
- 239000010440 gypsum Substances 0.000 abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 abstract description 4
- 239000011777 magnesium Substances 0.000 abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000007605 air drying Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
- B27N7/005—Coating boards, e.g. with a finishing or decorating layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- 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
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/509—Magnesium cements, e.g. Sorel cement
Abstract
The invention relates to an inorganic cementitious biomass functional decorative
board and preparation method thereof. The inorganic cementitious biomass functional
decorative board consists of biomass inorganic cementitious substrate and surface
functional coating. The functional decorative board can be used as indoor ceiling and
interior wall decorative material. The functional decorative board is incombustible,
formaldehyde-free, soundproof and has dimensional stability, and it is conducive to
improve air quality, and can promote the efficient utilization of the residues of
agricultural and forestry and processed wood and bamboo, furthermore, it can be used
to replace the market dominated gypsum boards and glass magnesium boards, hence
overcoming the defects of wooden home decorative boards.
Description
Inorganic cementitious, biomass functional decorative board and preparation method thereof
TECHNICAL FIELD The invention relates to the technical field of building materials and artificial boards, in particular to an inorganic cementitious, biomass functional decorative board and preparation method thereof.
BACKGROUND The worth of decorative materials of all kinds for interior decoration used in China every year exceeds trillions of RMB, and the market capacity is huge. With the development of economy and society and the progress of human civilization, people are pursuing higher and higher quality of living environment, such as formaldehyde-free, flame retardant, and even health caring. More stringent standards have been issued at home and abroad, which provides a broad development space for the research and development of new materials for interior decoration. The advantages of magnesium oxychloride fireproof board include: Having abundant raw material supply with low cost, simple processing method and equipment, easy realization of automatic control, incombustibility and formaldehyde-free products, etc. However, it also has many defects such as halogen return, moisture absorption deformation, poor water resistance, large specific gravity, low strength, etc, therefore, the application of its product is inferior. Every year, hundreds of millions of tons of agricultural and forestry processing residues are produced in China, causing environmental pollution and great waste of resources. It is in urgent need to make full use of such waste resources and perfectly compounding with low cost and abundant magnesium oxychloride inorganic cementitious materials to prepare a new functional decorative board that is incombustible, formaldehyde-free, soundproof, and has dimensional stability, and can improve air quality. This invention meets the very need described, it not only provides a scientific way for the efficient utilization of agricultural and forestry wastes, but also meets the requirements of fire safety and environmental protection at home and abroad, furthermore it meets the current market demand, and has important practical significance for expanding the application fields of decoration and decoration boards and leading the industry to upgrade and develop.
SUMMARY This invention provides an inorganic cementitious biomass functional decorative board and preparation method thereof, the functional decorative board by this invention is incombustible, formaldehyde-free, soundproof, and has dimensional stability, and can improve air quality. The method can provide a scientific way for the efficient utilization of agricultural and forestry wastes, and can replace the market dominated gypsum boards and glass magnesium boards, hence overcoming the defects of wooden home decorative boards. In order to achieve the purpose described above, this invention provides the following technical method: Inorganic cementitious biomass functional decorative board is consisted of biomass inorganic cementitious substrate and surface functional coating. Wherein, biomass inorganic cementitious substrate comprises the following components in parts by mass: 100 parts of biomass materials, 60-70 parts of magnesium oxide, 18-22 parts of anhydrous magnesium chloride, 75-100 parts of water, 1-4 parts of trisodium phosphate, 1-4 parts of magnesium sulfate, 20-30 parts of silicon micropowder, 0-3 parts of polymethyltriethoxysilane, 1-3 parts of calcium formate, 0.5-2 parts of NNO and 0.5-2 parts of OP-10. Wherein, surface functional coating comprises the following components in parts by mass: 100 parts of main resin, 2-5 parts of dodecyl alcohol ester, 0.5-2 parts of sodium polymethacrylate, 0.5-2 parts of polydimethylsiloxane, 5-10 parts of anhydrous magnesium chloride, 15-30 parts of magnesium oxide, 10-20 parts of titanium dioxide, 1-5 parts of chitin, 3-5 parts of oxygen anion powder and 0-10 parts of color paste. The biomass materials is powder biomass materials or fibrous material or the mixture of the two. Wherein the powder size of the powdery biomass materials is 30-60 meshes, and the fiber length of the fibrous material is less than 20mm.
The biomass materials is powder biomass materials or fibrous material or the mixture of the two; Wherein the powder size of the powdery biomass materials is 30-60 meshes, and the fiber length of the fibrous material is less than 20mm. The powdery biomass materials is wood powder, straw powder, bamboo powder or their mixture, The fibrous material is wood fiber, bamboo fiber, palm fiber or their mixture. The main resin is pure acrylic emulsion, vinyl acetate emulsion, styrene-acrylic emulsion or their mixture. This invention also provides inorganic cementitious biomass functional decorative board and preparation method thereof, which comprises the steps described as below: Step 1: Weighing various raw materials in proportion. Step 2: Dissolving one quarter of the total anhydrous magnesium chloride in one quarter of the water in the raw material to prepare magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass materials. Step 3: Uniformly mixing all magnesium oxide, magnesium sulfate, silicon micropowder and biomass materials to prepare a mixed material. Step 4: Dissolving the rest amount of anhydrous magnesium chloride in the rest amount of water to prepare magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyltriethoxysilane, calcium formate, NNO and OP-10 to prepare a mixed solution. Step 5: Adding the mixed solution into the mixed material prepared in step 3, and rapidly stirring and uniformly mixing to prepare mixed slurry. Step 6: Evenly paving the mixed slurry in mold, compacting for 10-30min before demoulding. Loading the processed slurry into hot press, discharging under pressure relief after hot pressing after hot pressing, next, performing cold pressing, then stacking and curing the processed board at room temperature for 24-72h, and obtaining inorganic cementitious biomass board after trimming and thickness fixed sanding. Step 7: Weighing the main resin, sequentially adding dodecyl alcohol ester, sodium polymethacrylate, polydimethylsiloxane, anhydrous magnesium chloride, magnesium oxide, titanium dioxide, chitin, oxygen anion powder and color paste components in proportion, and stirring uniformly to prepare the surface functional coating;
Step 8: Evenly coating the surface functional coating on the surface of the inorganic cementitious biomass board for once or twice, wherein the coating amount is 120 300g/m2 . Drying at normal temperature or low temperature to prepare inorganic cementitious biomass functional decorative board. The hot pressing conditions in step 6 are: hot pressing for 1.2-2.0min/mm under the conditions of unit pressure of 1.2-1.6MPa and temperature of 105-125°C. The conditions of cold pressing in step 6 are: cold pressing for 30-60 min under the unit pressure of 1.0-1.4MPa. In step 8, the surface functional coating is evenly coated on the surface of the inorganic cementitious biomass board twice, and the time interval between the two coatings is 5-10 min. Compared with the prior art, the invention has the beneficial effects that: (1)The preparation method has great adaptability to various biomass materials, which improves the utilization value of agricultural and forestry residues. (2)The product prepared by the invention has the flame retardant characteristics of gypsum board and glass-magnesium board, and has higher static bending strength and elastic modulus, which overcomes the defects of gypsum board and glass-magnesium board, including damping and halogen return. (3)The product prepared by the invention has good dimensional stability even under the condition of high water absorption rate, and has a humidity "breathing" function that plays an auxiliary role in adjusting indoor air humidity. (4)The surface of the inorganic cementitious biomass functional decorative board has the functions of inhibiting bacteria, inducing oxygen anions and the like, which can improve indoor air quality.
DESCRIPTION OF THE INVENTION The invention will be further explained with specific embodiments below. Embodiment 1 Weighing 3.2kg of plywood sanding wood powder, 2.0kg of magnesium oxide, 0.6kg of magnesium chloride, 2.8kg of water, 0.1kg of trisodium phosphate and 0.1kg of magnesium sulfate, 0.8kg of silicon micropowder, 50g of polymethyltriethoxysilane, 50g of calcium formate, 50g of NNO and 50g of OP-10. Dissolving one quarter of the total anhydrous magnesium chloride in one quarter of the water in the raw material to prepare a magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass materials. Uniformly mixing all magnesium oxide, magnesium sulfate, silicon micropowder and biomass materials to prepare a mixed material. Dissolving the rest amount of anhydrous magnesium chloride in the rest amount of water to prepare magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyltriethoxysilane, calcium formate, NNO and OP-10 to prepare mixed solution. Adding the mixed solution into the prepared mixture, and rapidly stirring and uniformly mixing to prepare mixed slurry. Uniformly paving the mixed slurry in a 1m X 1m mold, compacting, demoulding after min, loading the processed slurry into hot press, hot pressing for 15min under the conditions of unit pressure of 1.4MPa and temperature of 120°C, and discharging under pressure relief. Cold pressing at 1.OMPa for 30min. Stacking and curing at room temperature for 48h. Trimming, thickness fixed sanding.to 8mm, and making inorganic cementitious biomass board. By testing, the physical and mechanical performance index of the inorganic cementitious biomass board are as follows: density 1.25g/cm 3 , static bending strength 7.5MPa, elastic modulus 2100MPa, 24h water absorption rate 21.3%, 24h water absorption thickness expansion rate 0.38%. Weighing 400g of styrene-acrylic emulsion, adding 1Og of dodecyl alcohol ester, 4g of sodium polymethacrylate, 6g of polydimethylsiloxane, 35g of anhydrous magnesium chloride, 100g of magnesium oxide, 50g of titanium dioxide, 4g of chitin, 15g of oxygen anion powder and 10g of color paste in turn, and then evenly mixed the material to prepare the surface functional coating. The coating was evenly coated on the surface of inorganic cementitious biomass board, the first coating amount was 150g/m 2 , the second coating amount was 1O0g/m 2 after air drying for 10mmin, and the inorganic cementitious biomass functional decorative board was made after drying at room temperature for 24hours. The testing results show that the functional decorative board has good surface antibacterial property, the flame retardant level reaches to the high level, the sound insulation amount is above 30dB in the frequency range of 250-6300Hz, and the negative oxygen ion induction amount 3 reaches 3100/cm3 in the range of 1m from the coated surface (compared with 900/cm in air). Embodiment 2 Weighing 3.3kg of wood fiber, 2.4kg of magnesium oxide, 0.6kg of magnesium chloride, 3.0kg of water, 0.1kg of trisodium phosphate, 0.1 kg of magnesium sulfate, 1.0kg of silicon micropowder, 50g of poly-methyltriethoxysilane, 50g of calcium formate, g of NNO and 50g of OP-10. Dissolving one quarter of the total anhydrous magnesium chloride in one quarter of the water in the raw material to prepare a magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass materials. Uniformly mixing all magnesium oxide, magnesium sulfate, silicon micropowder and biomass materials to prepare a mixed material. Dissolving the rest amount of anhydrous magnesium chloride in the rest amount of water to prepare magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyltriethoxysilane, calcium formate, NNO and OP-10 to prepare mixed solution. Adding the mixed solution into the prepared mixture, and rapidly stirring and uniformly mixing to prepare mixed slurry. Uniformly paving the mixed slurry in a 1m X 1m mold, compacting, demoulding after min, loading the processed slurry into hot press, hot pressing for 20min under the conditions of unit pressure of 1.2MPa and temperature of 120°C, and discharging under pressure relief. Cold pressing at 1.OMPa for 40min. Stacking and curing at room temperature for 48h. Trimming, thickness fixed sanding tol0mm, and making inorganic cementitious biomass board. Weighing 400g of pure acrylic emulsion, and adding 10g of dodecyl alcohol ester, 4g of sodium polymethacrylate, 5g of polydimethylsiloxane, 30g of anhydrous magnesium chloride, 80g of magnesium oxide, 40g of titanium dioxide, 4g of chitin, 20g of oxygen anion powder and 10g of color paste in turn, uniformly mixing the material to prepare the surface functional coating. The coating was evenly coated on the surface of inorganic cementitious biomass board, the first coating amount was 150g/m 2 , the second coating amount was 100g/m 2 after air drying for 10mmin, and the inorganic cementitious biomass functional decorative board was made after drying at room temperature for 24 hours. By testing, the physical and mechanical performance index of the inorganic cementitious biomass board are as follows: density 1.2g/cm 3 , static bending strength 8.7MPa, elastic modulus 2240MPa, 24h water absorption rate 24.1%, 24h water absorption thickness expansion rate 0.42%. The flame retardant level reaches to the high level, the sound insulation amount is above 30dB in the frequency range of 250 6300Hz, and the negative oxygen ion induction amount reaches 3400/cm 3 in the range of 1m from the coated surface (compared with 900/cm 3 in air). Embodiment 3 Cutting Palm fiber into 10-15mm in length, and weighing 3.0kg of palm fiber, 2.4kg of magnesium oxide, 0.6kg of magnesium chloride, 3.0kg of water, 0.1kg of trisodium phosphate and 0.1kg of magnesium sulfate, 1.0kg of silicon micropowder, 60g of poly methyltriethoxysilane, 50g of calcium formate, 50g of NNO and 50g of OP-10. Dissolving one quarter of the total anhydrous magnesium chloride in one quarter of the water in the raw material to prepare a magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass materials. Uniformly mixing all magnesium oxide, magnesium sulfate, silicon micropowder and biomass materials to prepare a mixed material. Dissolving the rest amount of anhydrous magnesium chloride in the rest amount of water to prepare magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyltriethoxysilane, calcium formate, NNO and OP-10 to prepare mixed solution. Uniformly paving the mixed slurry in a 1m X 1m mold, compacting, demoulding after min, loading the processed slurry into hot press, hot pressing for 20min under the conditions of unit pressure of 1.6MPa and temperature of 110°C, and discharging under pressure relief. Cold pressing at 1.OMPa for 60min. Stacking and curing at room temperature for 48h. Trimming, thickness fixed sanding to 8mm, and making inorganic cementitious biomass board. Weighing 400g of pure vinyl acetate emulsion, adding 8g of dodecyl alcohol ester, 2g of sodium polymethacrylate, 3g of polydimethylsiloxane, 20g of anhydrous magnesium chloride, 60g of magnesium oxide, 60g of titanium dioxide, 5g of chitin, 20g of oxygen anion powder and 20g of color paste in turn, and mixing the material evenly to prepare the surface functional coating. The coating was evenly coated on the surface of inorganic cementitious biomass board, the first coating amount was 150g/m 2 , the second coating amount was 1O0g/m 2 after air drying for 10min, and the inorganic cementitious biomass functional decorative board was made after drying at room temperature for 24 hours. By testing, the physical and mechanical performance index of the inorganic cementitious biomass board are as follows: density 1.32g/cm 3 , static bending strength 11.5MPa, elastic modulus 2400MPa, 24h water absorption rate 20.4%, 24h water absorption thickness expansion rate 0.34%. The flame retardant level reaches to the high level, the sound insulation amount is above 30dB in the frequency range of 250 6300Hz, and the negative oxygen ion induction amount reaches 3400/cm 3 in the range of 1m from the coated surface (compared with 900/cm 3 in air). The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent substitution and improvement made to the above embodiments by any person familiar with this profession according to the technical essence of the present invention without departing from the technical scheme of the present invention still falls within the protection scope of the technical scheme of the present invention.
Claims (1)
- THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. The inorganic cementitious biomass functional decorative board and preparation method thereof is characterized in comprising biomass inorganic cementitious substrate and surface functional coating. Wherein, biomass inorganic cementitious substrate comprises the following components in parts by mass: 100 parts of biomass materials, 60-70 parts of magnesium oxide, 18-22 parts of anhydrous magnesium chloride, 75-100 parts of water, 1-4 parts of trisodium phosphate, 1-4 parts of magnesium sulfate, 20-30 parts of silicon micropowder, 0-3 parts of polymethyltriethoxysilane, 1-3 parts of calcium formate, 0.5-2 parts of NNO and 0.5-2 parts of OP-10. Wherein, surface functional coating comprises the following components in parts by mass: 100 parts of main resin, 2-5 parts of dodecyl alcohol ester, 0.5-2 parts of sodium polymethacrylate, 0.5-2 parts of polydimethylsiloxane, 5-10 parts of anhydrous magnesium chloride, 15-30 parts of magnesium oxide, 10-20 parts of titanium dioxide, 1-5 parts of chitin, 3-5 parts of oxygen anion powder and 0-10 parts of color paste. 2. Inorganic cementitious biomass functional decorative board, according to claim 1, is characterized in that the biomass materials is powder biomass materials or fibrous material or the mixture of the two; Wherein the powder size of the powdery biomass materials is 30-60 meshes, and the fiber length of the fibrous material is less than 20mm. 3. Inorganic cementitious biomass functional decorative board according to claim 2 is characterized in that the powdery biomass materials is wood powder, straw powder, bamboo powder or their mixture, The fibrous material is wood fiber, bamboo fiber, palm fiber or their mixture. 4. Inorganic cementitious biomass functional decorative board according to claim 1 is characterized in that the main resin is pure acrylic emulsion, vinyl acetate emulsion, styrene-acrylic emulsion or their mixture. 5. Inorganic cementitious biomass functional decorative board and preparation method thereof is characterized as below: Step 1: Weighing various raw materials in proportion. Step 2: Dissolving one quarter of the total anhydrous magnesium chloride in one quarter of the water in the raw material to prepare magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass materials. Step 3:Uniformly mixing all magnesium oxide, magnesium sulfate, silicon micropowder and biomass materials to prepare a mixed material. Step 4:Dissolving the rest amount of anhydrous magnesium chloride in the rest amount of water to prepare magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyltriethoxysilane, calcium formate, NNO and OP-10 to prepare a mixed solution. Step 5: Adding the mixed solution into the mixed material prepared in step 3, and rapidly stirring and uniformly mixing to prepare mixed slurry. Step 6: Evenly paving the mixed slurry in mold, compacting for 10-30min before demoulding. Loading the processed slurry into hot press, discharging under pressure relief after hot pressing, next, performing cold pressing, then stacking and curing the processed board at room temperature for 24-72h, and obtaining inorganic cementitious biomass board after trimming and thickness fixed sanding. Step 7: Weighing the main resin, sequentially adding dodecyl alcohol ester, sodium polymethacrylate, polydimethylsiloxane, anhydrous magnesium chloride, magnesium oxide, titanium dioxide, chitin, oxygen anion powder and color paste components in proportion, and stirring uniformly to prepare the surface functional coating; Step 8: Evenly coating the surface functional coating on the surface of the inorganic cementitious biomass board for once or twice, wherein the coating amount is 120 300g/m2 . Drying at normal temperature or low temperature to prepare inorganic cementitious biomass functional decorative board. 6. Inorganic cementitious biomass functional decorative board and preparation method thereof, according to claim 5, is characterized in that the hot pressing conditions in step 6 are: hot pressing for 1.2-2.0 min/mm under the conditions of unit pressure of 1.2-1.6MPa and temperature of 105-125°C. 7. Inorganic cementitious biomass functional decorative board and preparation method thereof, according to claim 5, is characterized in that the conditions of cold pressing in step 6 are: cold pressing for 30-60 min under the unit pressure of 1.0-1.4 MPa.8. Inorganic cementitious biomass functional decorative board and preparation method thereof, according to claim 5, is characterized in that in step 8, the surface functional coating is evenly coated on the surface of the inorganic cementitious biomass board twice, and the time interval between the two coatings is 5-10 min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710114A (en) * | 2022-11-10 | 2023-02-24 | 上海梁杭生物科技有限公司 | Bamboo charcoal soil inorganic mineral coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710114A (en) * | 2022-11-10 | 2023-02-24 | 上海梁杭生物科技有限公司 | Bamboo charcoal soil inorganic mineral coating and preparation method thereof |
| CN115710114B (en) * | 2022-11-10 | 2023-08-22 | 上海梁杭生物科技有限公司 | Bamboo charcoal soil inorganic mineral coating and preparation method thereof |
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