CN111635211A - Plant fiber cement board and preparation method thereof - Google Patents
Plant fiber cement board and preparation method thereof Download PDFInfo
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- CN111635211A CN111635211A CN202010472082.5A CN202010472082A CN111635211A CN 111635211 A CN111635211 A CN 111635211A CN 202010472082 A CN202010472082 A CN 202010472082A CN 111635211 A CN111635211 A CN 111635211A
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- 239000000835 fiber Substances 0.000 title claims abstract description 43
- 239000004568 cement Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000003755 preservative agent Substances 0.000 claims abstract description 10
- 230000002335 preservative effect Effects 0.000 claims abstract description 10
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- CENHPXAQKISCGD-UHFFFAOYSA-N trioxathietane 4,4-dioxide Chemical compound O=S1(=O)OOO1 CENHPXAQKISCGD-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 241000196324 Embryophyta Species 0.000 claims description 38
- 239000010902 straw Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 241000209140 Triticum Species 0.000 claims description 10
- 235000021307 Triticum Nutrition 0.000 claims description 10
- 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 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- FEPBITJSIHRMRT-UHFFFAOYSA-N 4-hydroxybenzenesulfonic acid Chemical group OC1=CC=C(S(O)(=O)=O)C=C1 FEPBITJSIHRMRT-UHFFFAOYSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 229920002522 Wood fibre Polymers 0.000 claims description 4
- 238000007605 air drying Methods 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite group Chemical group N(=O)[O-] IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 4
- 239000002025 wood fiber Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 241000219146 Gossypium Species 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 244000082204 Phyllostachys viridis Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 240000008042 Zea mays Species 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- -1 methyl dimethyl phosphonate Chemical compound 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- SMDQFHZIWNYSMR-UHFFFAOYSA-N sulfanylidenemagnesium Chemical compound S=[Mg] SMDQFHZIWNYSMR-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 229910052736 halogen Inorganic materials 0.000 abstract description 3
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- QGZNMXOKPQPNMY-UHFFFAOYSA-N [Mg].[Cl] Chemical compound [Mg].[Cl] QGZNMXOKPQPNMY-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical group O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 1
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002023 wood Substances 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
-
- 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
- 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
- C04B18/26—Wood, e.g. sawdust, wood shavings
-
- 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
- C04B18/26—Wood, e.g. sawdust, wood shavings
- C04B18/265—Wood, e.g. sawdust, wood shavings from specific species, e.g. birch
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Botany (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to a plant fiber cement board which comprises the following components in parts by weight: 70-85 parts of plant fiber, 3-6 parts of reinforcing agent, 3-5 parts of curing agent, 15-25 parts of inorganic adhesive, 0.2-0.5 part of preservative and 1-3.5 parts of catalyst. The invention has the advantages that: the cement board has high plant fiber content, and improves the utilization rate of agricultural and forestry wastes. The product using the sulfur-magnesium cement as the adhesive overcomes the defects of halogen return, dewing and metal corrosion of the chlorine-magnesium product. The modifier and the additive are added, so that the compression strength and the breaking strength of the sulfur-magnesium cement product are improved, and the water-resistant softening coefficient and the acid-base corrosion resistance are improved; the magnesium oxysulfate cement product mainly made of plant fibers has obvious advantages of construction and energy conservation. The product volume weight is reduced while the product structural strength is ensured, the requirements of light weight and high strength wall materials are met, the heat preservation and sound insulation effects of the product are improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a plant fiber cement board and a preparation method thereof.
Background
The traditional building wallboard contains more cement materials and wood materials, and the existing wallboard has the defects of heavier mass, poor impact resistance, rupture resistance and shock resistance, large heat conductivity coefficient, poor heat insulation performance and the like, so that the requirement of building energy-saving standard cannot be met. Along with the continuous improvement of environmental awareness of people, the building wallboard has higher requirements on various performances of the building wallboard, and the existing cement-based wallboard adopts magnesium oxychloride as a cementing material and has the problems of halogen return, condensation, metal corrosion and the like. And the volume weight and the production cost of the existing building board are both large.
Disclosure of Invention
In order to solve the technical problems, the invention provides a plant fiber cement board and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
a plant fiber cement board is characterized in that: the paint comprises the following components in parts by weight: 60-85 parts of plant fiber, 3-6 parts of reinforcing agent, 3-5 parts of curing agent, 15-35 parts of inorganic adhesive, 0.2-0.5 part of preservative and 1-3.5 parts of catalyst.
On the basis of the above scheme, the following technical scheme can be adopted:
the water content of the plant fiber is 8-12%, and the plant straw is straw of wheat, rice, corn, cotton, grass, pasture and reed, wood fiber, bamboo fiber and the like.
The flame retardant is also included, and the weight portion of the flame retardant is 3-5.
The flame retardant is organophosphorus methyl dimethyl phosphonate.
The reinforcing agent is light calcium powder, the inorganic adhesive is magnesium sulfate heptahydrate or light-burned magnesium oxide, the curing agent is p-hydroxybenzene sulfonic acid, and the preservative is nitrite.
The preparation method of the plant fiber cement board is characterized by comprising the following steps:
s1, crushing, namely crushing the plant straws by a crusher and then grinding by a grinder;
s2, air-drying, wherein the ground plant fiber is air-dried by a dryer to enable the water content to be 8-12%;
s3, mixing the glue, and uniformly mixing the air-dried plant fibers and the rare-earth adhesive in a glue applicator;
s4, mixing materials, adding a reinforcing agent, a curing agent, a preservative and a catalyst into the vegetable fiber after glue mixing, and uniformly mixing;
s5, extrusion molding, and extruding and molding the mixed materials through a hot-pressing extruder;
s6, cutting the formed plate into required size;
s7, maintaining, namely maintaining the cut plate for 28 days in an environment with the humidity of 30-65% and the temperature of 15-35 ℃;
and S8, packaging into a finished product warehouse.
The hot pressing temperature in the S5 is 75 to 150 c,
the pressure of the extruder in the S5 is 5-10 Mpa.
The invention has the beneficial effects that: the cement board has high plant fiber content, and improves the utilization rate of agricultural and forestry wastes. The sulfur-magnesium cement adhesive product overcomes the defects of halogen return, dewing and metal corrosion of chlorine-magnesium products. The modifier and the additive are added, so that the compression strength and the breaking strength of the sulfur-magnesium cement product are improved, and the water-resistant softening coefficient and the acid-base corrosion resistance are improved; the magnesium oxysulfate cement product mainly made of plant fibers has obvious advantages of construction and energy conservation. The product volume weight is reduced while the product structural strength is ensured, the requirements of light weight and high strength wall materials are met, the heat preservation and sound insulation effects of the product are improved, and the production cost is reduced.
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 embodiment I, the plant fiber cement board comprises the following components in parts by weight: 80 parts of plant fiber, 5 parts of reinforcing agent, 4 parts of curing agent, 20 parts of inorganic adhesive, 0.4 part of preservative, 2.5 parts of catalyst and 4 parts of flame retardant. The plant straw is straw of wheat, rice, corn, cotton, grass, pasture or reed, wood fiber, bamboo fiber and the like, the wheat straw is preferably selected, the flame retardant is organophosphorus methyl dimethyl phosphonate, the reinforcing agent is light calcium powder, the inorganic adhesive is magnesium oxysulfate cement slurry, the curing agent is p-hydroxybenzene sulfonic acid, and the preservative is nitrite.
A preparation method of a plant fiber cement board comprises the following steps:
s1, smashing, bundling wheat straws from the field, transporting the bundled wheat straws to a powder workshop, conveying the bundled wheat straws to a bale breaker through a conveyer, scattering the bundled wheat straws, smashing the smashed wheat straws through a smashing machine, and grinding the smashed wheat straws into plant fibers with required fineness through a grinding machine.
And S2, air-drying, and conveying the ground plant fibers to a dryer through a conveyor for air-drying to enable the water content of the plant fibers to be 10%.
S3, mixing glue, uniformly mixing the air-dried plant fibers and the inorganic adhesive in a glue applicator by adopting magnesium oxysulfate cement slurry, adding a catalyst into the magnesium oxysulfate cement slurry, wherein the catalyst is the prior art and has the functions of adjusting the viscosity and the setting time of the magnesium oxysulfate cement and enhancing the strength and the flexural strength of the magnesium oxysulfate cement.
S4, mixing materials, adding dimethyl organophosphate methyl, light calcium powder, p-hydroxybenzene sulfonic acid and nitrite into the vegetable fiber after glue mixing, and mixing uniformly.
And S5, carrying out extrusion molding, conveying the mixed materials to a hot-pressing extruder through a conveyer, and carrying out hot-pressing extrusion molding. The pressure of the extruder was 8Mpa and the hot pressing temperature was 150 ℃.
And S6, cutting the formed plate into blanks with required sizes by a cross cutting saw, and stacking.
And S7, maintaining, and maintaining the cut plate for 28 days in an environment with the humidity of 50% and the temperature of 35 ℃.
And S8, packaging into a finished product warehouse.
The second embodiment is a plant fiber cement board, which comprises the following components in parts by weight: 75 parts of plant fiber, 4 parts of reinforcing agent, 3.5 parts of curing agent, 18 parts of inorganic adhesive, 0.35 part of preservative, 2.2 parts of catalyst and 3.5 parts of flame retardant. The plant straw is made of wood fiber, and the inorganic adhesive is light-burned magnesium oxide.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A plant fiber cement board is characterized in that: the paint comprises the following components in parts by weight: 60-85 parts of plant fiber, 3-6 parts of reinforcing agent, 3-5 parts of curing agent, 15-35 parts of inorganic adhesive, 0.2-0.5 part of preservative and 1-3.5 parts of catalyst.
2. The plant fiber cement board as claimed in claim 1, wherein: the water content of the plant fiber is 8-12%, and the plant straw is straw of wheat, rice, corn, cotton, grass, pasture and reed, wood fiber and bamboo fiber.
3. The plant fiber cement board as claimed in claim 1, wherein: the flame retardant is also included, and the weight portion of the flame retardant is 3-5.
4. The plant fiber cement board as claimed in claim 3, wherein: the flame retardant is organophosphorus methyl dimethyl phosphonate.
5. The plant fiber cement board as claimed in claim 1, wherein: the reinforcing agent is light calcium powder, the inorganic adhesive is magnesium oxysulfate cement, the curing agent is p-hydroxybenzene sulfonic acid, and the preservative is nitrite.
6. The method for preparing plant fiber cement board according to claim 1, comprising the following steps:
s1, crushing, namely crushing the plant straws by a crusher and then grinding by a grinder;
s2, air-drying, wherein the ground plant fiber is air-dried by a dryer to enable the water content to be 8-12%;
s3, mixing the glue, and uniformly mixing the air-dried plant fibers and the rare-earth adhesive in a glue applicator;
s4, mixing materials, adding a reinforcing agent, a curing agent, a preservative and a catalyst into the vegetable fiber after glue mixing, and uniformly mixing;
s5, extrusion molding, and extruding and molding the mixed materials through a hot-pressing extruder;
s6, cutting the formed plate into required size;
s7, maintaining, namely maintaining the cut plate for 28 days in an environment with the humidity of 30-65% and the temperature of 15-35 ℃;
and S8, packaging into a finished product warehouse.
7. The method for preparing a plant fiber cement board according to claim 6, wherein: the hot pressing temperature in the S5 is 75-150 ℃.
8. The method for preparing a plant fiber cement board according to claim 6, wherein: the pressure of the extruder in the S5 is 5-10 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472082.5A CN111635211A (en) | 2020-05-29 | 2020-05-29 | Plant fiber cement board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472082.5A CN111635211A (en) | 2020-05-29 | 2020-05-29 | Plant fiber cement board and preparation method thereof |
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| CN111635211A true CN111635211A (en) | 2020-09-08 |
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| CN202010472082.5A Pending CN111635211A (en) | 2020-05-29 | 2020-05-29 | Plant fiber cement board and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196940A (en) * | 2022-07-15 | 2022-10-18 | 中国建筑西南设计研究院有限公司 | A kind of composite fiber reinforced basic magnesium sulfate cement and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022267109A1 (en) * | 2021-06-24 | 2022-12-29 | 中福海峡(平潭)发展股份有限公司 | Juncao fiberboard and preparation method therefor |
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| CN116425502A (en) * | 2023-03-03 | 2023-07-14 | 广西中基信汇科技有限公司 | Plant fiber board and preparation method thereof |
| CN117185738A (en) * | 2023-08-15 | 2023-12-08 | 山西熙在高新材料有限公司 | Building solid waste recycled concrete and processing technology thereof |
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