CN112374856B - Glass magnesium board with good sound insulation effect and preparation method thereof - Google Patents
Glass magnesium board with good sound insulation effect and preparation method thereof Download PDFInfo
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- CN112374856B CN112374856B CN202011185692.3A CN202011185692A CN112374856B CN 112374856 B CN112374856 B CN 112374856B CN 202011185692 A CN202011185692 A CN 202011185692A CN 112374856 B CN112374856 B CN 112374856B
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- magnesium oxide
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- 230000000694 effects Effects 0.000 title claims abstract description 64
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000011521 glass Substances 0.000 title claims abstract description 56
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 56
- 239000011777 magnesium Substances 0.000 title claims abstract description 56
- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 75
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 65
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910001868 water Inorganic materials 0.000 claims abstract description 48
- 238000003756 stirring Methods 0.000 claims abstract description 35
- 229920002635 polyurethane Polymers 0.000 claims abstract description 34
- 239000004814 polyurethane Substances 0.000 claims abstract description 34
- 239000003513 alkali Substances 0.000 claims abstract description 33
- 239000004744 fabric Substances 0.000 claims abstract description 33
- 239000003365 glass fiber Substances 0.000 claims abstract description 33
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 31
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 31
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 31
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 31
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 64
- 239000000047 product Substances 0.000 claims description 21
- -1 aminoethyl aminopropyl Chemical group 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 14
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 13
- 239000000347 magnesium hydroxide Substances 0.000 claims description 13
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 13
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000012046 mixed solvent Substances 0.000 claims description 12
- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 claims description 11
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 claims description 11
- 239000002370 magnesium bicarbonate Substances 0.000 claims description 11
- 235000014824 magnesium bicarbonate Nutrition 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 239000004970 Chain extender Substances 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001965 increasing effect Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 238000003763 carbonization Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- 229940031958 magnesium carbonate hydroxide Drugs 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 5
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000012265 solid product Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 239000010703 silicon Substances 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- 238000009966 trimming Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/282—Polyurethanes; Polyisocyanates
-
- 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
- C04B9/00—Magnesium cements or similar cements
- C04B9/02—Magnesium cements containing chlorides, 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
- C04B9/00—Magnesium cements or similar cements
- C04B9/20—Manufacture, e.g. preparing the batches
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/0037—Materials containing oriented fillers or elements
- C04B2111/00379—Materials containing oriented fillers or elements the oriented elements being 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a glass magnesium board with good sound insulation effect, which comprises the following raw materials in parts by weight: 60-70 parts of high-activity magnesium oxide, 30-40 parts of magnesium chloride, 6-8 parts of alkali-resistant glass fiber cloth, 5-10 parts of plant fiber, 5-7 parts of magnesite water-resistant powder, 20-30 parts of filler and 20-30 parts of modified polyurethane; the glass magnesium board is prepared by the following steps: preparing materials, mixing and stirring the materials, forming, maintaining and trimming. In the process of synthesizing the glass magnesium board, the activity of magnesium oxide has important influence on the performance of the formed final glass magnesium board, so the invention synthesizes high-activity magnesium oxide, and adopts organic silicon to graft and modify polyurethane, and the obtained modified polyurethane combines the polyurethane and the effective components in the glass magnesium board through bonds and effects to form a whole, thereby enhancing the waterproof performance and the hardness of the glass magnesium board and simultaneously enhancing the sound insulation function of the glass magnesium board.
Description
Technical Field
The invention belongs to the field of functional materials, and particularly relates to a glass magnesium board with a good sound insulation effect and a preparation method thereof.
Background
The glass magnesium flat plate (commonly called as magnesium oxide plate) is a new type non-inflammable decorative material which is made up by using magnesium oxide, magnesium chloride and water ternary system, preparing and adding magnesite water-resisting powder and its performance is stable. The fireproof waterproof fireproof paint is processed by adopting a special production process, has the characteristics of fire resistance, water resistance, no odor, no toxicity, no freezing, no corrosion, no cracking, no change, no combustion, high strength, light weight, convenient construction, long service life and the like, and has composite special performance in similar products all over the country. In the process of manufacturing the glass magnesium board, 5MgO & MgCl are formed2·8H2The ternary system glass magnesium board with the structure O has better performance, the requirement on the content of active magnesium oxide in magnesium oxide is stricter, the activity of the magnesium oxide is only 50 percent after the magnesium oxide is placed for two months due to the characteristics of the magnesium oxide, the content of the active magnesium oxide is the important basis for calculating the reaction molar ratio in the normal manufacturing process of the glass magnesium board, and when the light-burned magnesium oxide is placed for two months, the light-burned magnesium oxide has better performanceWhen the content of the medium active magnesium oxide is less than 60 percent, the magnesium chloride is seriously excessive due to poor capacity of combining the magnesium chloride, when the excessive magnesium chloride absorbs moisture and reaches a saturated state, the excessive magnesium chloride returns out of the surface of the product and is condensed into water drops, the condensation speed of the product is slowed down, the solidification is slowed down, and the lower the content of the medium active magnesium oxide is, the slower the condensation is, and even more the product cannot be condensed. The light-burned magnesia has a low content of active magnesia and a high content of sinter powder, magnesium carbonate and magnesium hydroxide, and this inactive component cannot form 5 MgO. MgCl2·8H2O, as an ineffective component, results in 5 MgO. MgCl2·8H2The amount of O phase produced is insufficient, and the strength and water resistance of the product are lowered. When the active magnesium oxide is insufficient, the content of the sintered magnesium oxide is increased, the sintered magnesium oxide is very slowly hydrated and even not hydrated for a long time, the sintered magnesium oxide is still slowly hydrated when the product is used after being formed, particularly under the condition of high humidity, and the expansion stress caused by the slow hydration can cause the formed product to warp and deform and crack seriously.
However, even if 5 MgO. MgCl is produced2·8H2The O crystal phase, 5 MgO. MgCl, still presents problems2·8H2The O crystal phase has a disadvantage of being easily corroded by water, thereby lowering the strength of the product. The magnesite water-resistant powder contains various salts which can change the hardened phase structure of the magnesite cementing material in the hardening process to change the crystal phase morphology, so that a plurality of needle-shaped 5MgO MgCl2·8H2The O crystal becomes finer, the lap joint is tighter, the moisture is not easy to permeate into the interior, the corrosion and damage effects of the moisture are avoided, and some 5 MgO. MgCl2·8H2The O crystal phase interpenetrates into the water-resistant powder particle framework to form a new hard structural network, thereby increasing the water resistance of the product.
The sound insulation material is a material, a member or a structure which can block sound transmission or weaken transmitted sound energy, and is characterized in that the sound insulation material or the member is heavy in mass and high in density, and sound insulation effects obtained by different test methods are different due to different use occasions. For sound insulation materials, to reduce transmitted sound energy and block sound transmission, it is not as porous, loose and air permeable as sound absorption materials, but it should be heavy and dense, such as steel plate, lead plate, brick wall, etc. The sound insulation material is required to be compact and have no pores or gaps, and has larger weight to prevent sound outside, and is generally used in places with higher privacy, such as bedrooms and the like. In view of the situations, the invention provides a novel method for manufacturing a magnesium oxide board to improve the performance of the magnesium oxide board as a whole.
Disclosure of Invention
The requirements of people on life quality are higher and higher in the current society, noise also becomes a content which needs to be overcome urgently, the glass magnesium board is more and more widely applied in the life of people as a novel material, and the sound insulation performance of the glass magnesium board also needs to be further improved so as to be more widely applied. In the process of manufacturing the glass magnesium board, the active magnesium oxide content pair generates 5MgO & MgCl2The structure 8H2O is particularly important, but the 5 MgO. MgCl produced is2·8H2The O crystal phase is easy to be corroded by water, the magnesite water-resistant powder contains various salts which can change the hardened phase structure of the magnesite cementing material in the hardening process to change the appearance of the crystal phase, so that a plurality of needle-shaped 518 crystals become finer and more compact in lap joint, moisture is not easy to permeate into the interior, the corrosion damage effect of the moisture is avoided, and some 5 MgO. MgCl2The interpenetration of the 8H2O crystalline phase into the framework of the powder repellent particles creates a new, rigid network, thereby increasing the water resistance of the article. In view of these reasons, the present invention aims to provide a magnesium oxide panel having a good sound insulation effect and a method for manufacturing the same.
The purpose of the invention can be realized by the following technical scheme:
the glass magnesium board with good sound insulation effect comprises the following raw materials in parts by weight: 60-70 parts of high-activity magnesium oxide, 30-40 parts of magnesium chloride, 6-8 parts of alkali-resistant glass fiber cloth, 5-10 parts of plant fiber, 5-7 parts of magnesite water-resistant powder, 20-30 parts of filler and 20-30 parts of modified polyurethane;
the glass magnesium board is prepared by the following method:
step S1: grinding high-activity magnesium oxide in a ball mill for 30min, sieving with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving into a solution, standing for 24h, mixing with the high-activity magnesium oxide, pouring into a stirrer, stirring uniformly, adding plant fiber, filler, magnesite water-resistant powder and modified polyurethane, and continuously stirring into flour paste, wherein the stirring speed is 500r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, rolling and forming, wherein an upper layer and a lower layer of low-alkali glass fiber cloth are arranged in the forming machine, the surface slurry is positioned between the upper layer and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 25-28 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 25-35 ℃, curing for 3-5 days, and cutting and forming to obtain the glass magnesium board.
Further, the high-activity magnesium oxide is prepared by the following method:
s1: putting magnesite into a high-temperature boiler to be calcined into powder, wherein the calcining temperature is 650 ℃, and the calcining time is 10 min;
s2: digesting the powder obtained in the step S1 with hot water at 70 ℃, removing filter residues, and preparing a calcium hydroxide and magnesium hydroxide mixed solution;
s3: introducing carbon dioxide into the digested calcium hydroxide and magnesium hydroxide mixed solution to perform a carbonization reaction to generate calcium carbonate precipitate and a magnesium bicarbonate solution, filtering to separate the calcium carbonate precipitate and the magnesium bicarbonate solution, and reserving the magnesium bicarbonate solution for later use;
s4: hydrolyzing the magnesium bicarbonate solution obtained by filtering in the S3 to obtain magnesium carbonate and magnesium hydroxide;
s5: and (4) drying the magnesium carbonate and the magnesium hydroxide obtained in the step S4, and then calcining at a high temperature to obtain the high-activity magnesium oxide.
Further, the carbonization time in S2 is 60min, and the content of carbon dioxide in the introduced gas is not less than 50%.
Further, the modified polyurethane is prepared by the following method:
a1, installing a stirrer, a reflux condenser tube and a dropping funnel on a 250mL three-necked bottle, adding toluene diisocyanate into a mixed solvent of dimethyl sulfoxide and methyl isobutyl ketone, starting the stirrer to completely dissolve the toluene diisocyanate, weighing polytetrahydrofuran ether glycol to dissolve in the mixed solvent, slowly dropping the solution into the three-necked bottle from the dropping funnel after the toluene diisocyanate is dissolved, and continuing to react for 2 hours to obtain a prepolymer solution;
a2, dissolving a chain extender 1, 4-butanediol in a mixed solvent, slowly adding the chain extender into the prepolymer solution from a dropping funnel to react with excessive isocyanato, accelerating the stirring speed when the viscosity is increased, keeping the temperature at 60 ℃ after the dropwise addition is finished, reacting for 1h to obtain a polymer solution, pouring the polymer solution into a beaker filled with distilled water, separating out a white solid product, soaking the product in water overnight, washing with water for 2-3 times, and then putting the product into a vacuum oven at 50 ℃ for drying;
a3, dissolving aminoethyl aminopropyl polydimethylsiloxane in a mixed solvent, slowly dripping into the polymer solution after the chain expansion, dripping toluene diisocyanate, raising the temperature to 80 ℃, stirring at constant temperature for 2 hours to obtain a modified polymer solution, pouring the modified polymer solution into a beaker filled with distilled water, separating out a product, soaking the product overnight, washing with water for 2-3 times, and drying in a vacuum oven at 50 ℃ to obtain the final modified polyurethane.
The invention has the beneficial effects that: during the process of synthesizing the glass magnesium board, the active pair of magnesium oxide forms 5 MgO. MgCl2·8H2The O structure is extremely important, so the invention synthesizes high-activity magnesium oxide, namely 5 MgO. MgCl which is used as a test and has higher activity but is generated2·8H2The O crystal phase is easily corroded by water, the added magnesite water-resistant powder contains various salts, the salts can change the hardened phase structure of the magnesite cementing material in the hardening process to change the appearance of the crystal phase, so that a plurality of needle-shaped 518 crystals become finer, the lapping is tighter, the moisture is not easy to permeate into the inside, the corrosion and damage effects of the moisture are avoided, some 518 crystal phases are inserted into the particle skeleton of the water-resistant powder, a hard new structural net is formed, and the water resistance of the product is improved.
Because the sound insulation effect of a single glass magnesium board cannot achieve a good effect, the sound insulation effect can achieve a certain effect by enhancing the hardness of the glass magnesium board, and a polyurethane product can achieve a good sound insulation effect, but the polyurethane cannot directly react with active ingredients in the glass magnesium board, the invention grafts the modified polyurethane by using organic silicon, combines the active ingredients in the glass magnesium board with the modified polyurethane through bonds and effects, reduces the hydrophobicity because of introducing hydrophilic groups in the process of modifying the polyurethane, but because the activity of hydrogen atoms of amino groups in the aminoethyl aminopropyl polydimethylsiloxane is far higher than that of hydrogen atoms of hydroxyl groups in the polytetrahydrofuran ether glycol, the polytetrahydrofuran ether glycol and a small amount of toluene diisocyanate are mixed firstly, and then the aminoethyl aminopropyl polydimethylsiloxane is dripped under the condition of high-speed stirring, the aminoethyl aminopropyl polydimethylsiloxane is completely reacted, then toluene diisocyanate is added for heating reaction to obtain the isocyanate end-capped prepolymer, and the aminoethyl aminopropyl polydimethylsiloxane in the modified polyurethane migrates and gathers from the surface of the material, while the main chain of the aminoethyl aminopropyl polydimethylsiloxane does not contain a polar group, so that the hydrophobicity is improved, the waterproof performance of the modified polyurethane is not influenced, and the sound insulation performance of the glass magnesium board is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The experimental aim of the invention is realized by the following technical scheme:
the glass magnesium board with good sound insulation effect comprises the following raw materials in parts by weight: 60-70 parts of high-activity magnesium oxide, 30-40 parts of magnesium chloride, 6-8 parts of alkali-resistant glass fiber cloth, 5-10 parts of plant fiber, 5-7 parts of magnesite water-resistant powder, 20-30 parts of filler and 20-30 parts of modified polyurethane;
the high-activity magnesium oxide is prepared by the following method:
s1: calcining magnesite into powder at 650 ℃ for 10 min;
s2: digesting the powder obtained in the step S1 with hot water at 70 ℃, removing filter residues, and preparing a calcium hydroxide and magnesium hydroxide mixed solution;
s3: introducing carbon dioxide into the digested calcium hydroxide and magnesium hydroxide mixed solution to perform a carbonization reaction to generate calcium carbonate precipitate and a magnesium bicarbonate solution, and filtering to separate the calcium carbonate precipitate and the magnesium bicarbonate solution;
s4: hydrolyzing the magnesium bicarbonate solution obtained by filtering in the S3 to obtain magnesium carbonate and magnesium hydroxide;
s5: and (4) drying the magnesium carbonate and the magnesium hydroxide obtained in the step S4, and then calcining at a high temperature to obtain the high-activity magnesium oxide.
Further, the carbonization time in S2 is 60min, and the content of carbon dioxide in the introduced gas is not less than 50%.
The modified polyurethane is prepared by the following method:
A1A 250mL three-necked flask was equipped with a stirrer, reflux condenser and dropping funnel. Adding toluene diisocyanate into a mixed solvent of dimethyl sulfoxide and methyl isobutyl ketone, starting a stirrer to completely dissolve the toluene diisocyanate, then weighing polytetrahydrofuran ether glycol to dissolve in the mixed solvent, slowly dripping the solution into a three-mouth bottle from a dripping funnel after the solution is dissolved, and continuously reacting for 2 hours to obtain a prepolymer solution;
a2, dissolving a chain extender 1, 4-butanediol in a mixed solvent, slowly adding the chain extender into the prepolymer solution from a dropping funnel, accelerating the stirring speed when the viscosity is increased, keeping the temperature at 60 ℃ after the dripping is finished, reacting for 1h to obtain a polymer solution, pouring the polymer solution into a beaker filled with distilled water, separating out a white solid of the product, soaking the product in water overnight, washing with water for 2-3 times, and then drying in a vacuum oven at 50 ℃;
a3, dissolving aminoethyl aminopropyl polydimethylsiloxane in a mixed solvent, slowly dripping into the polymer solution after the chain expansion, dripping toluene diisocyanate, raising the temperature to 80 ℃, stirring at constant temperature for 2 hours to obtain a modified polymer solution, pouring the modified polymer solution into a beaker filled with distilled water, separating out a product, soaking the product overnight, washing with water for 2-3 times, and drying in a vacuum oven at 50 ℃ to obtain the final modified polyurethane.
The preparation method of the glass magnesium board comprises the following steps:
step S1: grinding the prepared high-activity magnesium oxide in a ball mill for 30min, sieving the ground high-activity magnesium oxide with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving the magnesium chloride into a solution, standing the solution for 24h, mixing the solution with the high-activity magnesium oxide, pouring the solution into a stirrer, uniformly stirring the solution, adding plant fibers, fillers, magnesite water-resistant powder and modified polyurethane, and continuously stirring the mixture into flour paste, wherein the stirring speed is 500r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming, wherein the surface slurry is positioned between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 25-28 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 25-35 ℃, curing for 3-5 days, and cutting and forming to obtain the glass magnesium board.
Example 1
The glass magnesium board with good sound insulation effect comprises the following raw materials in parts by weight: 60 parts of high-activity magnesium oxide, 30 parts of magnesium chloride, 6 parts of alkali-resistant glass fiber cloth, 5 parts of plant fiber, 5 parts of magnesite water-resistant powder, 20 parts of filler and 20 parts of modified polyurethane;
the preparation method of the glass magnesium board comprises the following steps:
step S1: grinding the prepared high-activity magnesium oxide in a ball mill for 30min, sieving the ground high-activity magnesium oxide with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving the magnesium chloride into a solution, standing the solution for 24h, mixing the solution with the high-activity magnesium oxide, pouring the solution into a stirrer, uniformly stirring the solution, adding plant fibers, fillers, magnesite water-resistant powder and modified polyurethane, and continuously stirring the mixture into flour paste, wherein the stirring speed is 400r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming, wherein the surface slurry is positioned between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 25 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 25 ℃, curing for 3 days, and cutting and forming to obtain the glass magnesium board.
Example 2
The glass magnesium board with good sound insulation effect comprises the following raw materials in parts by weight: 65 parts of high-activity magnesium oxide, 35 parts of magnesium chloride, 7 parts of alkali-resistant glass fiber cloth, 8 parts of plant fiber, 6 parts of magnesite water-resistant powder, 25 parts of filler and 25 parts of modified polyurethane;
the preparation method of the glass magnesium board comprises the following steps:
step S2: grinding the prepared high-activity magnesium oxide in a ball mill for 30min, sieving the ground high-activity magnesium oxide with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving the magnesium chloride into a solution, standing the solution for 24h, mixing the solution with the high-activity magnesium oxide, pouring the solution into a stirrer, uniformly stirring the solution, adding plant fibers, fillers, magnesite water-resistant powder and modified polyurethane, and continuously stirring the mixture into flour paste, wherein the stirring speed is 450r/min and the stirring time is 20 min;
step S3: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming, wherein the surface slurry is positioned between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 27 hours;
step S4: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 30 ℃, curing for 4 days, and cutting and forming to obtain the glass magnesium board.
Example 3
The glass magnesium board with good sound insulation effect comprises the following raw materials in parts by weight: 70 parts of high-activity magnesium oxide, 40 parts of magnesium chloride, 8 parts of alkali-resistant glass fiber cloth, 10 parts of plant fiber, 7 parts of magnesite water-resistant powder, 30 parts of filler and 30 parts of modified polyurethane;
the preparation method of the glass magnesium board comprises the following steps:
step S1: grinding the prepared high-activity magnesium oxide in a ball mill for 30min, sieving the ground high-activity magnesium oxide with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving the magnesium chloride into a solution, standing the solution for 24h, mixing the solution with the high-activity magnesium oxide, pouring the solution into a stirrer, uniformly stirring the solution, adding plant fibers, fillers, magnesite water-resistant powder and modified polyurethane, and continuously stirring the mixture into flour paste, wherein the stirring speed is 500r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming the surface slurry between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, controlling the forming temperature to be 30 ℃ and the forming time to be 28 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 35 ℃, curing for 5 days, and cutting and forming to obtain the glass magnesium board.
Comparative example 1
The highly active magnesium oxide in example 1 was replaced with ordinary magnesium oxide, and the preparation was carried out under the same conditions.
Comparative example 2
The modified polyurethane in example 1 was replaced with polyurethane, and the preparation was carried out under the same conditions.
Comparative example 3
The modified polyurethane in example 1 was removed, and the preparation was carried out under the same conditions.
The magnesium oxide panel obtained in the above embodiment is made into magnesium oxide panel doors with the same size and thickness, and the doors are sequentially installed in the same room, the same noise is produced in the same environment, and the decibel number transmitted is tested at the same position, and the results are as follows:
the results in the table show that the sound insulation effect of the magnesium oxide board prepared by the high-activity magnesium oxide and the modified polyurethane is better than that of a comparative example under the same conditions, which shows that the magnesium oxide board prepared by the invention has good sound insulation effect.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (2)
1. The glass magnesium board with good sound insulation effect is characterized by comprising the following raw materials in parts by weight: 60-70 parts of high-activity magnesium oxide, 30-40 parts of magnesium chloride, 6-8 parts of alkali-resistant glass fiber cloth, 5-10 parts of plant fiber, 5-7 parts of magnesite water-resistant powder, 20-30 parts of filler and 20-30 parts of modified polyurethane;
the glass magnesium board is prepared by the following steps:
step S1: grinding high-activity magnesium oxide in a ball mill for 30min, sieving with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving into a solution, standing for 24h, mixing with the high-activity magnesium oxide, pouring into a stirrer, stirring uniformly, adding plant fiber, filler, magnesite water-resistant powder and modified polyurethane, and continuously stirring into flour paste, wherein the stirring speed is 500r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming, wherein the surface slurry is positioned between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 25-28 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 25-35 ℃, curing for 3-5 days, and cutting and forming to obtain the glass magnesium board;
the high-activity magnesium oxide is prepared by the following method:
s1: calcining magnesite into powder at 650 ℃ for 10 min;
s2: digesting the powder obtained in the step S1 with hot water at 70 ℃, removing filter residues, and preparing a mixed solution of calcium hydroxide and magnesium hydroxide;
s3: introducing carbon dioxide into the digested mixed solution of calcium hydroxide and magnesium hydroxide to perform a carbonization reaction to generate a calcium carbonate precipitate and a magnesium bicarbonate solution, filtering to separate the calcium carbonate precipitate and the magnesium bicarbonate solution, and reserving the magnesium bicarbonate solution for later use;
s4: hydrolyzing the magnesium bicarbonate solution obtained by filtering in the S3 to obtain magnesium carbonate and magnesium hydroxide;
s5: drying the magnesium carbonate and magnesium hydroxide obtained in the step S4, and then calcining at a high temperature to obtain high-activity magnesium oxide;
the modified polyurethane is prepared by the following method:
a1, installing a stirrer, a reflux condenser tube and a dropping funnel on a 250mL three-necked bottle, adding toluene diisocyanate into a mixed solvent of dimethyl sulfoxide and methyl isobutyl ketone, starting the stirrer to completely dissolve the toluene diisocyanate, weighing polytetrahydrofuran ether glycol to dissolve in the mixed solvent, slowly dropping the solution into the three-necked bottle from the dropping funnel after the toluene diisocyanate is dissolved, and continuing to react for 2 hours to obtain a prepolymer solution;
a2, dissolving a chain extender 1, 4-butanediol in a mixed solvent, slowly adding the chain extender into the prepolymer solution from a dropping funnel, accelerating the stirring speed when the viscosity is increased, keeping the temperature at 60 ℃ after the dripping is finished, reacting for 1h to obtain a polymer solution, pouring the polymer solution into a beaker filled with distilled water, separating out a white solid product, soaking the white solid product in water overnight, washing with water for 2-3 times, and then drying in a vacuum oven at 50 ℃;
a3, dissolving aminoethyl aminopropyl polydimethylsiloxane in a mixed solvent, slowly dripping into the polymer solution after chain extension, dripping toluene diisocyanate, raising the temperature to 80 ℃, stirring at constant temperature for 2 hours to obtain a modified polymer solution, pouring the modified polymer solution into a beaker filled with distilled water, separating out a product, soaking the product overnight, washing with water for 2-3 times, and drying in a vacuum oven at 50 ℃ to obtain the final modified polyurethane.
2. The method for preparing a magnesium oxide panel with good sound insulation effect according to claim 1, wherein the magnesium oxide panel is prepared by the following steps:
step S1: grinding the prepared high-activity magnesium oxide in a ball mill for 30min, sieving the ground high-activity magnesium oxide with a 180-mesh sieve for later use, adding pure water into magnesium chloride, fully dissolving the magnesium chloride into a solution, standing the solution for 24h, mixing the solution with the high-activity magnesium oxide, pouring the solution into a stirrer, uniformly stirring the solution, adding plant fibers, fillers, magnesite water-resistant powder and modified polyurethane, and continuously stirring the mixture into flour paste, wherein the stirring speed is 500r/min and the stirring time is 20 min;
step S2: pouring the prepared surface slurry into a template of a forming machine, arranging an upper layer of low-alkali glass fiber cloth and a lower layer of low-alkali glass fiber cloth in the forming machine, rolling and forming, wherein the surface slurry is positioned between the upper layer of low-alkali glass fiber cloth and the lower layer of low-alkali glass fiber cloth, the forming temperature is controlled at 30 ℃, and the forming time is 25-28 hours;
step S3: naturally hardening and airing the formed glass magnesium board at normal temperature, then sending the glass magnesium board into a curing room, maintaining the temperature of the curing room at 25-35 ℃, curing for 3-5 days, and cutting and forming to obtain the glass magnesium board.
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| CN1539774A (en) * | 2003-10-31 | 2004-10-27 | 清华大学 | Method for preparing Nano magnesia from calcining light burning powder of magnesite |
| CN101798375A (en) * | 2010-02-09 | 2010-08-11 | 东莞市贝特利新材料有限公司 | Modified polyurethane |
| CN108929100A (en) * | 2018-09-10 | 2018-12-04 | 南京倍立达欧陆装饰艺术工程有限公司 | A kind of magnesite flooring products and preparation method thereof |
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| JP4315895B2 (en) * | 2004-12-01 | 2009-08-19 | タテホ化学工業株式会社 | Phosphorus-containing coated magnesium oxide powder, method for producing the same, and resin composition containing the powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539774A (en) * | 2003-10-31 | 2004-10-27 | 清华大学 | Method for preparing Nano magnesia from calcining light burning powder of magnesite |
| CN101798375A (en) * | 2010-02-09 | 2010-08-11 | 东莞市贝特利新材料有限公司 | Modified polyurethane |
| CN108929100A (en) * | 2018-09-10 | 2018-12-04 | 南京倍立达欧陆装饰艺术工程有限公司 | A kind of magnesite flooring products and preparation method thereof |
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Effective date of registration: 20220722 Address after: 239000 No. 98 Garden Road West, Anhui, Chuzhou Patentee after: ANHUI YANGZI FLOORING Inc.,Co. Patentee after: Anhui Yangzi Meijia New Material Technology Co.,Ltd. Address before: 239000 No. 98 Garden Road West, Anhui, Chuzhou Patentee before: ANHUI YANGZI FLOORING Inc.,Co. |
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Application publication date: 20210219 Assignee: CHUZHOU RUNLIN WOOD Co.,Ltd. Assignor: ANHUI YANGZI FLOORING Inc.,Co.|Anhui Yangzi Meijia New Material Technology Co.,Ltd. Contract record no.: X2023980052161 Denomination of invention: A glass magnesium board with good sound insulation effect and its preparation method Granted publication date: 20220412 License type: Common License Record date: 20231218 |