CN101172825A - Magnesium-calcium pyrophyte pressed-fibre board and method of manufacturing the same - Google Patents

Magnesium-calcium pyrophyte pressed-fibre board and method of manufacturing the same Download PDF

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Publication number
CN101172825A
CN101172825A CNA2007101579280A CN200710157928A CN101172825A CN 101172825 A CN101172825 A CN 101172825A CN A2007101579280 A CNA2007101579280 A CN A2007101579280A CN 200710157928 A CN200710157928 A CN 200710157928A CN 101172825 A CN101172825 A CN 101172825A
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magnesium
pyrophyte
fiberboard
calcium
cement
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CN100532315C (en
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谢涛
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谢涛
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30Compositions 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
    • C04B28/32Magnesium oxychloride cements, e.g. Sorel cement
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1006Absence of well-defined organic compounds
    • C04B2111/1012Organic solvents
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2038Resistance against physical degradation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, e.g. waterproof or water-repellant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to a magnesium calcium fire-proof plant fibre board and the preparation method thereof, and consists of 1 to 2.4 parts of abio-glue gelled material, 1.5 to 2.5 parts of plant fibres, 0.025 to 0.03 parts of cymene sodium silicate and 1.4 to 1.8 parts of stirring liquor. The invention adopting the method of heat pressing the half dry feed comprises the steps of preparation of material, stirring of the mixture feed, paving and pre-pressing, heat pressing and moulding and incising with fixed size. The products not contain formaldehyde and has the advantages of environmental protection, no poison, harm and crack, light weight and heat preservation, shrinking and small swelling modulus. The invention has good fire-proofing, water-proofing, antisepsis, moth-proofing, and weathering resistance, thereby thoroughly eliminating abuse reversing salting of the magnesium products. Moreover, the invention has the characteristic of the abio-material and combines the characteristics of wood including fine texture, strong natural tactile sensation, easily planning, cutting, fixing and sticking. The invention which has simple production technique and fast shaping speed needs not to be preserved and aired and has high intensity of breaking resisting and even density and not distort. The invention is applicable to the industries such as constructional material, package, transportation, decorating, etc.

Description

Magnesium calcium pyrophyte fiberboard and preparation method thereof
Technical field
The invention belongs to building material field, relate in particular to a kind of calcareous vegetable fiberboard of magnesium and preparation forming method thereof that adopts organic materials and inorganic materials blended to have fire resistance.
Background technology
Along with the develop rapidly of Chinese society doctrine construction and improving constantly of living standards of the people, demand to timber increases substantially, therefore the felling quantity of log is increasing, makes original wood supply with regard to the few China of forest-covered area also become more nervous.In order to keep ecological balance and to satisfy building of the four modernizations and the growing needs of people, country is when strengthening imported timber quantity, more will greatly develop novel environmental-friendly construction material, save resource, the sharp useless substitute wood product of production are carried out energetically with long-term policy as an important behave and are advocated.Therefore, various fiberboards that utilize farm crop and other vegetable fibre productions and imitation wood thereof occur in succession and emerge in an endless stream, and its preparation method is also varied, though have his own strong points, weak point is arranged respectively also.Ubiquitous problem is: contain chemical additive such as UF or PF glue in the raw material mostly as binding agent, objectionable impurities wherein is contaminate environment but also the health that endangers the people not only; Most components are organism in the raw material, waterproof, fire prevention, anticorrosion, mothproof poor performance.Be head it off, Chinese patent application numbers 200710010019.4 discloses " a kind of ecological inorganic composite architectural materials ", adopting magnesium oxide, gypsum, high-alumina cement is the inorganic material that coagulates, add agricultural crop straw vegetable fibre and three wastes inorganic wastes, naphthalene series water reducer NNO, MF4, wooden calcium sulfonate, emulsifying agent, permeate agent and stirred solution magnesium chloride, sal epsom through aqueous fusion and, heated and boiled, enduring, condensation form.Its waterproof, fire prevention, anticorrosion, mothproof better performances, but yield rate and intensity are lower, and production rate is slower; Especially it is many to add organic materials properties-correcting agent and solution, and the problem of the anti-halogen of its finished fiber plate does not solve as yet at all.
Chinese patent application numbers 98106819.7 provides " a kind of making method of rice straw fibreboard ", adopts straw, alkaline hydrogen sodium hydroxide solution, acid H 2SO 4Solution, Resin adhesive and magnesium oxide are raw material, and it is stifling that straw is soaked, dewaters, adds alkali, high temperature; Dry, add acid, flushing; Batch mixing, stirring, oven dry; Series of process processes such as extravagance, high temperature oil pressure, cooling and cutting are made fire prevention, humidity resistance is good, the rice straw fibreboard that acid-fast alkali-proof intensity is high.Its technology slightly complicated, and need twice pyroprocessing, cost improves, and the fiberboard of particularly making still exists the defective of anti-halogen.
Summary of the invention
Purpose of the present invention is exactly in order to solve the problem of above-mentioned existence, aim to provide and a kind ofly substitute timber with organic the combination with inorganic substance, produce a kind of have better fire prevention, waterproof, anticorrosion, mothproof performance, and do not contain formaldehyde, radiationless, the intensity height, indeformable, vegetable fiberboard of anti-halogen and preparation method thereof not.
Technical solution of the present invention is:
Magnesium calcium pyrophyte fiberboard is to adopt organic materials to mix hot pressing with inorganic materials to form, and it is made up of inorganic gel material, vegetable fibre, sodium methyl silicate and stirred solution four part materials.Wherein:
The inorganic gel material package is drawn together magnesium cement, anhydrous plaster powder and aluminosulfate cement;
Wherein one or more of the remaining chaff skin of tankage, wood shavings, wood powder, vegetation powder, reed, Sunflower Receptacle stem stalk and farm crop processing back that vegetable fibre comprises crop plants fiber, wood fibre, wood working;
Stirred solution is magnesium chloride solution and water.
The components by weight percent of above-mentioned raw materials is:
1~2.4 part in inorganic gel material, wherein: 0.7~1.4 part of magnesium cement, 0.2~0.6 part of anhydrous plaster powder, 0.1~0.4 part of aluminosulfate cement;
1.5~2.5 parts on vegetable fibre;
0.025~0.03 part of sodium methyl silicate;
1.4~1.8 parts of stirred solutions, wherein: 0.75~1 part of magnesium chloride solution, 0.65~0.8 part in water.
Described magnesium cement is high-silicon low-calcium, activated magnesia should be between 62% ± 2, and its every composition weight forms and parameter is: MgO 80~86%, active CaO 1.0~1.5%, SiO 23.5~4.5%, Al 2O 32.2~2.9%, Fe 3O 41.0~2.0%; Loss on ignition is 3~11%.
The preparation method of magnesium calcium pyrophyte fiberboard of the present invention is to adopt half-dried material hot-forming, and its technological process comprises raw material preparation, batch mixing stirring, paving prefabricating, thermocompression forming and five contents of scale cutting.
The concrete operations step is:
1, raw material is prepared: one or more plant materials are put into pulverizer pulverize, make its powdering or staple length be not more than the powder of 10mm; In the described components by weight percent scope of claim 2, be ready to various raw materials by required proportioning weighing.
2, batch mixing stirs: earlier ready magnesium cement is mixed back adding magnesium chloride solution with aluminosulfate cement and stir; Simultaneously anhydrous plaster powder being added water stirs; After two kinds of pasty state material mixing and stirring that will stir again, add vegetable fibre and sodium methyl silicate successively, fully stir and form half-dried material.
3, paving prefabricating: the half-dried material that will stir is mated formation and carry out pre-molding to preformer, and precompression is 0.6~0.8MPa, and how much that mats formation and expect determines according to the thickness of goods.
4, thermocompression forming: the slab of pre-molding is put into multi-daylight press carry out the heating and pressurizing typing, plus-pressure is 2~4 MPa, and Heating temperature is 65~85 ℃, and the heating and pressurizing time is 8~12min.
5, scale cutting: the fiberboard blank after will finalizing the design unloads piling from multi-daylight press, treats to carry out after temperature is cooled off fully the scale cutting, is the present invention's finished product after cutting finishes.
The number of plies of described multi-daylight press is 12~17 layers.
Beneficial effect of the present invention is fairly obvious:
Because magnesium calcium pyrophyte fiberboard selects for use Mg-Ca matter inorganic materials as tackiness agent, replace the organic resin gelating material, prescription is reasonable with component in addition, therefore makes its goods have environmental protection, nontoxic, flawless, light thermal-insulation, the characteristics that shrink, the coefficient of expansion are little; Fire prevention, waterproof, anticorrosion, mothproof and weather proof erosion performance are good, have especially thoroughly eliminated the drawback of the anti-halogen of magnesian product, make it have more remarkable advantages and potentiality.Owing to adopt vegetable fibre and various waste material to make raw material, not only can save timber in a large number, protect forest resources, and realized utilization of waste material helping environment protection.The present invention combines organic materials with inorganic materials, both characteristics of organic and/or inorganic materials, and compatible again organic materials is the characteristic of timber particularly, is of close texture, and natural texture is strong, and is easy to that nail digs, cutting, fixing and bonding.
The preparation method of magnesium calcium pyrophyte fiberboard stir except that batch mixing and the pressure hot briquetting, more process procedure, facility investment is little, instant effect, technology is simple; Additive types is few, easy handling and grasp; Take twice pressure forming of half-dried material, speed is fast, need not health and airing, and the folding strength height, density is even, and is indeformable.
Embodiment
The invention will be further described below in conjunction with embodiment.
Magnesium calcium pyrophyte fiberboard is made up of inorganic gel material, vegetable fibre, sodium methyl silicate and stirred solution four part materials.Each raw material weight component is:
1~2.4 part in inorganic gel material, wherein: 0.7~1.4 part of magnesium cement; 0.2~0.6 part of anhydrous plaster powder; 0.1~0.4 part of aluminosulfate cement.Magnesium cement is mainly as jointing compound, requires magnesium cement to be necessary for high-silicon low-calcium, activated magnesia should be between 62% ± 2, and its parameters is: MgO 80~86%, active CaO 1.0~1.5%, SiO 23.5~4.5%, Al 2O 32.2~2.9%, Fe 3O 41.0~2.0%; Loss on ignition is 3~11%.0.1~0.4 part of aluminosulfate cement, its effect are early strong and waterproof.
Wherein one or more of 1.5~2.5 parts on vegetable fibre, the remaining chaff skin of tankage, wood shavings, wood powder, vegetation powder, reed, Sunflower Receptacle stem stalk and farm crop processing back that comprises crop plants fiber, wood fibre, wood working.
0.025~0.03 part of sodium methyl silicate is a main water-resisting agent of the present invention.
1.4~1.8 parts of stirred solutions, wherein: 0.75~1 part of magnesium chloride solution, 0.65~0.8 part in water.
Every part of each feed composition of 100kg specific embodiment and add-on are listed as follows: unit in the table: kg.
The preparation method's of magnesium calcium pyrophyte fiberboard of the present invention concrete operations step is:
1, raw material is prepared: the plant fiber material in the foregoing description 1,2,3,4 is cut into short section, puts into then that pulverizer is ground into powder or length is not more than the fibrous of 10mm; It is stand-by to be ready to various raw materials by embodiment 1,2,3,4 required proportioning weighings.
2, batch mixing stirs: will do mixed back adding magnesium chloride solution by embodiment 1,2,3,4 load weighted magnesium cement and aluminosulfate cement earlier and stir; And anhydrous plaster powder is added water stir; After two kinds of pasty state material mixing and stirring that will stir again, add vegetable fibre and sodium methyl silicate successively, fully stir and form half-dried material by proportioning.
3, paving prefabricating: the half-dried material that will stir is mated formation and carry out pre-molding to preformer.It is 0.6MPa that embodiment 1,2 selects precompression for use; It is 0.8MPa that embodiment 3,4 selects precompression for use.The how much definite according to the accurate calculating of thickness of goods of material mats formation.
4, thermocompression forming: the slab of pre-molding is put into 12~17 layers of thermocompressor carry out the heating and pressurizing typing.It is 2MPa that embodiment 1,2 selects pressure for use, and Heating temperature is 85 ℃, and the heating and pressurizing time is 8min.It is 4MPa that embodiment 3,4 selects pressure for use, and Heating temperature is 65 ℃, and the heating and pressurizing time is 12min.
5, scale cutting: the fiberboard blank after will finalizing the design unloads piling from thermocompressor, treats to carry out after temperature is cooled off fully the scale cutting, puts in storage after cutting finishes, and is the present invention's magnesium calcium pyrophyte fiberboard.
According to the magnesium calcium pyrophyte fiberboard that said components and method are produced, press the GB-8624/1997 standard test, its key technical indexes reaches fire prevention A level; Waterproof: soaking in the water did not have distortion or cracking, water-intake rate 10% in 48 hours; The bending resistance folding strength reaches 30Pa/m 2The convergent-divergent coefficient is 0.4 ‰.
The present invention can be widely used in industries such as building materials, packing, transportation and decoration, and its integrated performance index and result of use are better than common wood fibre board.

Claims (5)

1. a magnesium calcium pyrophyte fiberboard is characterized in that, adopts organic materials to mix hot pressing with inorganic materials and forms, and it is made up of inorganic gel material, vegetable fibre, sodium methyl silicate and stirred solution four part materials, wherein:
The inorganic gel material package is drawn together magnesium cement, anhydrous plaster powder and aluminosulfate cement;
Wherein one or more of the remaining chaff skin of tankage, wood shavings, wood powder, vegetation powder, reed, Sunflower Receptacle stem stalk and farm crop processing back that vegetable fibre comprises crop plants fiber, wood fibre, wood working;
Stirred solution is magnesium chloride solution and water.
2. magnesium calcium pyrophyte fiberboard according to claim 1 is characterized in that described raw material weight component is:
1~2.4 part in inorganic gel material, wherein: 0.7~1.4 part of magnesium cement, 0.2~0.6 part of anhydrous plaster powder, 0.1~0.4 part of aluminosulfate cement;
1.5~2.5 parts on vegetable fibre;
0.025~0.03 part of sodium methyl silicate;
1.4~1.8 parts of stirred solutions, wherein: 0.75~1 part of magnesium chloride solution, 0.65~0.8 part in water.
3. magnesium calcium pyrophyte fiberboard according to claim 1, it is characterized in that, described magnesium cement be high-silicon low-calcium, activated magnesia between 62% ± 2, its every composition weight is formed and parameter is: MgO 80~86%, active CaO 1.0~1.5%, SiO 23.5~4.5%, Al 2O 32.2~2.9%, Fe 3O 41.0~2.0%; Loss on ignition is 3~11%.
4. the preparation method of a magnesium calcium pyrophyte fiberboard is characterized in that, adopts half-dried material hot-forming, and its technological process comprises raw material preparation, batch mixing stirring, paving prefabricating, thermocompression forming and scale cutting, and the concrete operations step is:
1), raw material is prepared: one or more plant materials are put into pulverizer pulverize, make its powdering or staple length be not more than the powder of 10mm; In the described components by weight percent scope of claim 2, be ready to various raw materials by required proportioning weighing;
2), batch mixing stirs: earlier ready magnesium cement is mixed back adding magnesium chloride solution with aluminosulfate cement and stir; Simultaneously anhydrous plaster powder being added water stirs; After two kinds of pasty state material mixing and stirring that will stir again, add vegetable fibre and sodium methyl silicate successively, fully stir and form half-dried material;
3), paving prefabricating: the half-dried material that will stir is mated formation and carry out pre-molding to preformer, and precompression is 0.6~0.8MPa, and how much that mats formation and expect determines according to the thickness of goods;
4), thermocompression forming: the slab of pre-molding is put into multi-daylight press carry out the heating and pressurizing typing, plus-pressure is 2~4MPa, and Heating temperature is 65~85 ℃, and the heating and pressurizing time is 8~12min;
5), scale cutting: the fiberboard blank after will finalizing the design unloads piling from multi-daylight press, treats to carry out after temperature is cooled off fully the scale cutting, is the present invention's finished product after cutting finishes.
5. the preparation method of magnesium calcium pyrophyte fiberboard according to claim 4 is characterized in that the number of plies of described multi-daylight press is 12~17 layers.
CNB2007101579280A 2007-11-05 2007-11-05 Magnesium-calcium fire-proof plant fiber board and method of manufacturing the same Expired - Fee Related CN100532315C (en)

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Application Number Priority Date Filing Date Title
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CN100532315C CN100532315C (en) 2009-08-26

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102795879A (en) * 2012-08-16 2012-11-28 青岛科瑞新型环保材料有限公司 Decorated integrated vacuum insulation plate and its processing method
CN104591677A (en) * 2015-01-12 2015-05-06 上海青舟燃气设备有限公司 Environment-friendly plant fibre composite board and preparation method thereof
CN105236926A (en) * 2015-09-16 2016-01-13 谌萌 Inorganic gluing non-wood plant wood based panel and preparation process thereof
CN105599109A (en) * 2015-12-30 2016-05-25 卓达新材料科技集团有限公司 Cement-rice hull exterior wall decoration board and production method thereof
CN106186904A (en) * 2016-06-30 2016-12-07 孙成建 A kind of method preparing the components such as light-weight building post, beam and body of wall
CN106380168A (en) * 2016-08-30 2017-02-08 广西塔锡科技有限公司 Production method of energy saving sheet material
CN106995303A (en) * 2016-01-25 2017-08-01 江苏顶品家居有限公司 A kind of bamboo and woods fiber plate and preparation method thereof
CN107263665A (en) * 2017-07-18 2017-10-20 安徽至信竹业科技有限公司 A kind of fiberboard with inorganic protective layer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102795879A (en) * 2012-08-16 2012-11-28 青岛科瑞新型环保材料有限公司 Decorated integrated vacuum insulation plate and its processing method
CN104591677A (en) * 2015-01-12 2015-05-06 上海青舟燃气设备有限公司 Environment-friendly plant fibre composite board and preparation method thereof
CN105236926A (en) * 2015-09-16 2016-01-13 谌萌 Inorganic gluing non-wood plant wood based panel and preparation process thereof
CN105599109A (en) * 2015-12-30 2016-05-25 卓达新材料科技集团有限公司 Cement-rice hull exterior wall decoration board and production method thereof
CN105599109B (en) * 2015-12-30 2018-05-22 卓达新材料科技集团有限公司 A kind of cement rice husk decorative plate of outer wall and preparation method thereof
CN106995303A (en) * 2016-01-25 2017-08-01 江苏顶品家居有限公司 A kind of bamboo and woods fiber plate and preparation method thereof
CN106186904A (en) * 2016-06-30 2016-12-07 孙成建 A kind of method preparing the components such as light-weight building post, beam and body of wall
CN106186904B (en) * 2016-06-30 2018-06-29 孙成建 A kind of method for preparing the components such as light-weight building column, beam and wall
CN106380168A (en) * 2016-08-30 2017-02-08 广西塔锡科技有限公司 Production method of energy saving sheet material
CN107263665A (en) * 2017-07-18 2017-10-20 安徽至信竹业科技有限公司 A kind of fiberboard with inorganic protective layer

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