CN117844265A - Isolation material and preparation method thereof - Google Patents
Isolation material and preparation method thereof Download PDFInfo
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- CN117844265A CN117844265A CN202311264605.7A CN202311264605A CN117844265A CN 117844265 A CN117844265 A CN 117844265A CN 202311264605 A CN202311264605 A CN 202311264605A CN 117844265 A CN117844265 A CN 117844265A
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- cellulose fibres
- water
- aqueous solution
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 238000002955 isolation Methods 0.000 title description 2
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 26
- 235000009566 rice Nutrition 0.000 claims abstract description 26
- 239000007864 aqueous solution Substances 0.000 claims abstract description 24
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000010902 straw Substances 0.000 claims abstract description 13
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012774 insulation material Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 210000002268 wool Anatomy 0.000 claims abstract description 7
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 6
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims abstract description 6
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims abstract description 6
- 235000009120 camo Nutrition 0.000 claims abstract description 6
- 235000005607 chanvre indien Nutrition 0.000 claims abstract description 6
- 239000011487 hemp Substances 0.000 claims abstract description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 41
- 235000019353 potassium silicate Nutrition 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 30
- 241000209094 Oryza Species 0.000 claims description 25
- 239000006229 carbon black Substances 0.000 claims description 19
- 239000011230 binding agent Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 14
- 239000011734 sodium Substances 0.000 claims description 11
- 239000004115 Sodium Silicate Substances 0.000 claims description 10
- 239000004848 polyfunctional curative Substances 0.000 claims description 10
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 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 1
- 235000013339 cereals Nutrition 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- -1 corncob Substances 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 4
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000005871 repellent Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 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 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004348 Glyceryl diacetate Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 235000019443 glyceryl diacetate Nutrition 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 239000001087 glyceryl triacetate Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229960002622 triacetin Drugs 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
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/12—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of other material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
Abstract
The invention relates to a separation material and a preparation method thereof. A non-flammable, waterproof, vapor-permeable insulation material made of cellulose fibers, in particular a non-flammable, waterproof material made of rice hulls, straw, corncob, hemp, wool and cotton, in particular a non-flammable, waterproof, vapor-permeable material made of cellulose fibers for the manufacture of insulation panels, comprising a mixture comprising 10.9-20% by weight of cellulose fibers, 66-86% by weight of an aqueous solution of silicate, 2-5% by weight of aluminum hydroxide, 1-3% by weight of water and 0.1-1% by weight of a glass water stabilizer.
Description
Technical Field
The present invention relates to cellulosic fibrous materials, in particular non-flammable, water-repellent, vapor-permeable materials made of cellulosic fibers, in particular non-flammable, water-repellent materials made of rice hulls, straw, corncob, hemp, wool and cotton, in particular non-flammable, water-repellent, vapor-permeable materials made of cellulosic fibers for the manufacture of boards, and to a process for the preparation thereof.
Background
Many designs of board made from wood chips, glass, basalt, and other fibers, glass, ceramic, and basalt particles, fly ash, cement, etc. are known in the art.
For example, polyurethane adhesives and phenol formaldehyde, urea formaldehyde and other resins are used as adhesives.
A block made of cement mixed with rice hulls is known from patent document CN 103420649. The material has the defects of high density, low heat resistance and poor heat and sound insulation performance.
Another patent document RU2634451 discloses a board made of cellulosic and lignocellulosic materials (including rice hulls, straw, corncob, wool, and cotton), wherein an organic polymer such as polyacrylamide is used as a binder. The disadvantage of this sheet is the high flammability.
Patent document CN110510982 discloses a design of a board made of rice hulls, sludge, river sand, slag, fly ash, kaolin, and the like. The sheet has the disadvantages of heavy weight and poor heat and sound insulation.
From the above prior art it is evident that the main disadvantage of the prior art is that the known sheet material is almost always flammable or highly flammable. Another problem is their low water resistance. A further problem is the use of components that subsequently begin to release harmful organic substances. This relates in particular to binders such as phenol formaldehyde resins, urea formaldehyde resins, melamine formaldehyde resins and tannin formaldehyde resins, and combinations thereof with one another.
The object of the present invention is to provide a heat and sound insulating and waterproof material which has high fire resistance and is vapor permeable, environmentally friendly, harmless to health, recyclable, resistant to external influences and bioerodible.
Disclosure of Invention
The above drawbacks are largely eliminated by the following materials, and the object of the present invention is achieved. The material is a non-flammable, waterproof material made of cellulose fibers, in particular of rice hulls, straw, corncob, hemp, wool and cotton, in particular of cellulose fibers, for producing boards, characterized in that it comprises a mixture comprising 10.9-25% by weight of cellulose fibers, 66-86% by weight of an aqueous solution of silicate, 2-5% by weight of aluminium hydroxide, 1-3% by weight of water, and 0.1-1% by weight of a water glass stabilizer. The material has the advantages of light weight, steam permeability, high fire resistance and high water resistance. Meanwhile, the material has excellent heat and sound insulation performance, mildew-proof effect and external influence resistance, is environment-friendly and is harmless to health.
The aluminium hydroxide used preferably acts as a flame retardant. Advantageously, the mixture of water glass and aluminium hydroxide is very tightly and stably embedded in the wood.
Very preferably, in the case of cellulose fibers, a nonflammable, water-repellent material, in particular made of rice hulls, straw, corncob, hemp, wool and cotton, a nonflammable, water-repellent, vapor-permeable material for the production of boards, in particular made of cellulose fibers, a nonflammable, water-repellent material, in particular made of cellulose fibers, a nonflammable, water-repellent, vapor-permeable material for the production of boards, in particular made of cellulose fibers, is provided on the surface with carbon black, wherein the pure carbon black represents from 0.025 to 0.25% by weight of the total weight. The advantage of this is that carbon black arranged in this way reduces the thermal conductivity, wherein the carbon black is preferably absorbed to some extent into the fibers, stabilizing the connection of the fibers to the carbon black. Another advantage is that carbon black acts as a flame retardant.
Further preferably, the aqueous solution of silicate is an aqueous solution of sodium silicate.
Also preferably, the cellulosic fibers are rice hulls, fibers from straw, corn cob, hemp, wool and cotton, and have a length of 10-50mm.
Also preferably, the water glass stabilizer is hydrophilic (hydroxyalkyl) ethylenediamine.
Also preferably, the aqueous solution of sodium silicate exhibits a density of 1370 to 1400kg/m 3 And SiO 2 And Na (Na) 2 The molar ratio of O is in the range of 3.2 to 3.4. Advantageously, such a water glass is partly flexible after hardening.
Further preferably, the material made of cellulose fibers further comprises a water glass hardener.
Furthermore, the above-described drawbacks are largely eliminated by the following method, and the object of the present invention is achieved. The method is a method for producing a barrier material (insulat ion mater ial), in particular a non-flammable, waterproof, steam-permeable barrier material, in particular a non-flammable, waterproof, steam-permeable material made of cellulose fibers for producing a thermal insulation and sound insulation panel, characterized in that firstly aluminium hydroxide is mixed with water, and further cellulose fibers are mixed with a carbon black solution so that the entire surface of the cellulose fibers is covered with carbon black, and further they are added to an aluminium hydroxide solution, and all components are mixed, a mixture made of cellulose fibers is formed, and further a water glass stabilizer is added to an aqueous solution of silicate, and then a water glass hardener is mixed with the solution, wherein the solution is further stirred for 1-10 minutes to form a binder solution, and further the mixture made of cellulose fibers is added to the binder solution with continuous stirring, and further all components are mixed, and the resulting mixture is poured into an application site.
Preferably, the resulting mixture is finally left to stand until it hardens.
The main advantage of the insulation material and the method of producing it according to the invention is that the insulation material is highly nonflammable. The entire surface of the cellulose fiber is covered with carbon black and aluminum hydroxide serving as flame retardants. It is highly advantageous to use sodium water glass as binder, which after drying is similar in composition and properties to standard glass. It is very hard, abrasion resistant, resistant to temperatures of around 1000 ℃, waterproof, and vapor permeable. Meanwhile, the environment-friendly and healthy environment-friendly material is friendly. The isolating material is highly reflective of ultraviolet radiation. It does not release any organic toxic substances. The adhesive exhibits excellent adhesion and bonding effects and has good adhesion to a general base material. The binder can bind cellulose fibers well and effectively. At the same time, the entire surface of the cellulose fibers is covered with such a binder, and thus the cellulose fibers are protected from water, fire and ultraviolet radiation, and decomposition of the fibers is slowed down, for example, due to moisture. The separator with such an adhesive is hard, strong, abrasion resistant, nonflammable, heat resistant, waterproof, vapor permeable, resistant to biological attack, environmentally friendly, harmless to health, and does not emit organic substances.
Detailed Description
Example 1
A nonflammable waterproof material made of rice hulls includes a mixture including 10.9% by weight of rice hulls, 86% by weight of an aqueous solution of sodium silicate, 2% by weight of aluminum hydroxide, 1% by weight of water, and 0.1% by weight of a water glass stabilizer.
The water glass stabilizer is a hydrophilic (hydroxyalkyl) ethylenediamine in the form of a 98% aqueous solution of N, N' -tetrakis (2-hydroxypropyl) ethylenediamine.
The density of the aqueous solution of sodium silicate was 1380kg/m 3 And its SiO 2 And Na (Na) 2 The molar ratio of O was 3.3.
The material made from rice hulls also includes a water glass hardener which is a mixture of pure diacetate/triacetate in a volume ratio of 7:3, having a concentration of 0.5 to 5 weight percent relative to pure water glass.
According to the method for preparing a nonflammable waterproof material made of rice hulls, aluminum hydroxide is first mixed with water, rice hulls are mixed with a carbon black solution so that the entire surface of the rice hulls is covered with carbon black, and then added to the aluminum hydroxide solution, all components are mixed to form a fiber-containing mixture, and then a water glass stabilizer is added to an aqueous solution of silicate, and then a water glass hardener is mixed with the solution, wherein the solution is further stirred for 5 minutes to form a binder solution, and then a mixture made of rice hulls is added to the binder solution with continuous stirring, and all components are mixed, and then the resulting mixture is poured into an application site of a plate-shaped silicone mold.
Finally, the resulting mixture is left to stand until it hardens.
Example 2
A nonflammable waterproof material made of straw includes a mixture including 25% by weight of straw, 66% by weight of an aqueous solution of sodium silicate, 5% by weight of aluminum hydroxide, 3% by weight of water, and 1% by weight of a water glass stabilizer.
The water glass stabilizer is a hydrophilic (hydroxyalkyl) ethylenediamine in the form of a 98% aqueous solution of N, N' -tetrakis (2-hydroxypropyl) ethylenediamine.
The density of the aqueous solution of sodium silicate was 1370kg/m 3 And its SiO 2 And Na (Na) 2 The molar ratio of O was 3.2.
The material made from straw also comprises a water glass hardener which is a mixture of pure diacetin/triacetin in a volume ratio of 7:3, having a concentration of 0.5-5% by weight relative to pure water glass.
According to the method for preparing a nonflammable waterproof material made of straw, firstly aluminum hydroxide is mixed with water, straw is mixed with a carbon black solution so that the whole surface of straw is covered with carbon black, and then it is added to the aluminum hydroxide solution, all components are mixed to form a fiber-containing mixture, and then a water glass stabilizer is added to an aqueous solution of silicate, and then a water glass hardener is mixed with the solution, wherein the solution is further stirred for 5 minutes to form a binder solution, and then the fiber-containing mixture is added to the binder solution with continuous stirring, and all components are mixed, and then the resulting mixture is poured into an application site of a plate-shaped silicone mold.
Finally, the resulting mixture is left to stand until it hardens.
Example 3
A nonflammable waterproof material made of rice hulls includes a mixture including 19% by weight of rice hulls, 76% by weight of an aqueous solution of sodium silicate, 3% by weight of aluminum hydroxide, 1.5% by weight of water, and 0.5% by weight of a water glass stabilizer.
The water glass stabilizer is a hydrophilic (hydroxyalkyl) ethylenediamine in the form of a 98% aqueous solution of N, N' -tetrakis (2-hydroxypropyl) ethylenediamine.
The density of the aqueous solution of sodium silicate was 1400kg/m 3 And its SiO 2 And Na (Na) 2 The molar ratio of O was 3.4.
The material made from rice hulls also includes a water glass hardener which is a mixture of pure diacetate/triacetate in a volume ratio of 7:3, having a concentration of 0.5 to 5 weight percent relative to pure water glass.
According to the method for preparing a nonflammable waterproof material made of rice hulls, aluminum hydroxide is first mixed with water, rice hulls are mixed with a carbon black solution so that the entire surface of the rice hulls is covered with carbon black, and then added to the aluminum hydroxide solution, all components are mixed to form a mixture made of rice hulls, and then a water glass stabilizer is added to an aqueous solution of silicate, and then a water glass hardener is mixed with the solution, wherein the solution is further stirred for 5 minutes to form a binder solution, and then a mixture made of rice hulls is added to the binder solution with continuous stirring, and all components are mixed, and then the resulting mixture is poured into an application site of a plate-shaped silicone mold.
Finally, the resulting mixture is left to stand until it hardens.
INDUSTRIAL APPLICABILITY
The thermal and sound insulation material made of cellulose fibers according to the present invention can be used for manufacturing shaped articles or panels, in particular for the construction industry.
Claims (10)
1. A barrier material made of cellulose fibres, in particular a non-flammable, water-resistant, steam-permeable material made of cellulose fibres for the manufacture of barrier panels, characterized in that the barrier material comprises a mixture comprising 10.9-25% by weight of cellulose fibres, 66-86% by weight of an aqueous solution of silicate, 2-5% by weight of aluminium hydroxide, 1-3% by weight of water, and 0.1-1% by weight of a water glass stabilizer.
2. The insulation material of claim 1, wherein the cellulosic fibers are waste rice hulls from rice grain, and fibers from straw, corn cob, hemp, wool, and cotton, the fibers having a length of 10-50mm.
3. Insulation material made of cellulose fibres as claimed in any one of the preceding claims, in which the surface of the cellulose fibres is provided with carbon black, wherein the carbon black comprises 0.1-1% by weight of the total weight.
4. Insulation material made of cellulose fibres according to any one of the preceding claims, characterized in that the aqueous solution of silicate is an aqueous solution of sodium silicate.
5. A spacer material made of cellulose fibres as claimed in any one of the preceding claims in which the water glass stabiliser is hydrophilic (hydroxyalkyl) ethylenediamine.
6. The insulation material made of cellulose fibers according to any of the preceding claims, wherein the aqueous solution of sodium silicate exhibits a density of 1370-1400kg/m 3 Is not limited in terms of the range of (a).
7. Insulation material made of cellulose fibres as claimed in any one of the preceding claims, in which the aqueous solution of sodium silicateDisplay SiO 2 And Na (Na) 2 The molar ratio of O is in the range of 3.2 to 3.4.
8. The insulation made of cellulose fibers according to any of the preceding claims, further comprising a water glass hardener.
9. A method for preparing a material, in particular for preparing a non-flammable, water-resistant, steam-permeable material for manufacturing a lightweight thermal insulation panel according to any of claims 1 to 7, characterized in that firstly aluminium hydroxide is mixed with water and furthermore cellulose fibres are mixed with a carbon black solution so that the whole surface of the cellulose fibres is covered with carbon black and furthermore they are added to an aluminium hydroxide solution and all components are mixed to form a mixture and furthermore a water glass stabiliser is added to an aqueous solution of silicate and subsequently a water glass hardener is mixed with this solution, wherein the solution is further stirred for 1-10 minutes to form a binder solution and furthermore a mixture made of rice hulls is added to the binder solution with continuous stirring and all components are mixed and furthermore the resulting mixture is poured into the application site.
10. A method of preparing a barrier material according to claim 8, characterized in that the resulting mixture is finally left to stand until it hardens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPV2022-418 | 2022-10-05 | ||
| CZ2022-418A CZ2022418A3 (en) | 2022-10-05 | 2022-10-05 | An insulation material and a method of its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117844265A true CN117844265A (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311264605.7A Pending CN117844265A (en) | 2022-10-05 | 2023-09-28 | Isolation material and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117844265A (en) |
| CZ (1) | CZ2022418A3 (en) |
-
2022
- 2022-10-05 CZ CZ2022-418A patent/CZ2022418A3/en unknown
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- 2023-09-28 CN CN202311264605.7A patent/CN117844265A/en active Pending
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| Publication number | Publication date |
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| CZ2022418A3 (en) | 2024-04-17 |
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