CN112174605A - Graphite fireproof heat-insulation core material for external wall panel and preparation method thereof - Google Patents

Graphite fireproof heat-insulation core material for external wall panel and preparation method thereof Download PDF

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Publication number
CN112174605A
CN112174605A CN202011058292.6A CN202011058292A CN112174605A CN 112174605 A CN112174605 A CN 112174605A CN 202011058292 A CN202011058292 A CN 202011058292A CN 112174605 A CN112174605 A CN 112174605A
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China
Prior art keywords
graphite
heat
external
panel
fireproof
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Pending
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CN202011058292.6A
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Chinese (zh)
Inventor
许良前
苌光贾
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Anhui Best Insulation Building Energy Saving Material Technology Co ltd
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Anhui Best Insulation Building Energy Saving Material Technology Co ltd
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Priority to CN202011058292.6A priority Critical patent/CN112174605A/en
Publication of CN112174605A publication Critical patent/CN112174605A/en
Pending legal-status Critical Current

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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
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/024Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form the pressure on the material being transmitted through flexible or resilient wall parts, e.g. flexible cushions on the ramming surface, resilient wall parts pressing as a result of deformation caused by ram pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/003Methods for mixing
    • 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
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/022Carbon
    • C04B14/024Graphite
    • 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
    • C04B16/00Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04Macromolecular compounds
    • C04B16/08Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • 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
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a graphite fireproof heat-insulating core material for an external wall panel, wherein the heat-insulating core material is composed of cement, silica fume, a high-efficiency complexing agent, graphite EPS (expandable polystyrene) particles and active water. The invention has the advantages of non-flammability and high strength, and the economic efficiency is considerable while ensuring that the performance meets the requirement of realizing high strength.

Description

Graphite fireproof heat-insulation core material for external wall panel and preparation method thereof
Technical Field
The invention relates to the field of external wall insulation board core materials, in particular to a graphite fireproof insulation core material for an external wall board and a preparation method thereof.
Background
The external thermal insulation system of the external wall with thin plastered thermal insulation board is mainly adopted in the field of external thermal insulation building construction, the core material of the thermal insulation board is organic material such as EPS board, XPS board, polyurethane board, phenolic resin board and the like, the thermal insulation core material is flammable, and the combustion performance can not meet the A-level fireproof requirement at all. Some heat-insulating board core materials are inorganic materials, such as perlite boards, rock wool boards and the like, but the boards are easy to absorb water, low in strength and not guaranteed in safety. The thin stone material adopted as the heat insulation core material plate has high manufacturing cost, and the popularization and the use are influenced to a greater or lesser extent.
Disclosure of Invention
The invention aims to provide a graphite fireproof heat-insulation core material for an external wall panel and a preparation method thereof, and aims to solve the problems of flammability and low strength of the core material of the external wall heat-insulation panel in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a graphite fire prevention heat preservation core that side fascia was used which characterized in that: the high-efficiency composite material is prepared from cement, silica fume, a high-efficiency complexing agent, graphite EPS particles and active water, wherein the cement, the silica fume, the high-efficiency complexing agent, the graphite EPS particles, an organic silicon water repellent and the active water are in parts by weight:
2. the fireproof graphite heat-insulation core material for the external wall panel is characterized in that: the efficient complexing agent is prepared by mixing nano organic bentonite, a naphthalene-based efficient water reducing agent, a vegetable protein air entraining agent, a high-viscosity resin adhesive, a lithium-based curing agent and a phase-change material silicon dioxide aerogel. The weight parts of each component are as follows:
the fireproof graphite heat-insulation core material for the external wall panel is characterized in that: the cement is PII composite portland cement.
A preparation method of a graphite fireproof heat-insulation core material for an external wall panel is characterized by comprising the following steps: the process is as follows:
(1) putting the cement, the silica fume and the efficient complexing agent into a primary stirrer according to respective parts by weight for premixing, homogenizing and stirring to obtain a premix;
(2) adding the active water and the premix obtained in the step (1) in corresponding weight parts into a secondary stirrer for fully stirring, and simultaneously adding an organic silicon water repellent into the secondary stirrer to obtain slurry;
(3) adding the slurry obtained in the step (3) and graphite EPS particles in corresponding weight parts into a three-stage stirrer for stirring to obtain particle slurry;
(4) pouring the particle slurry obtained in the step (3) into a prefabricated mould box at a constant speed, and performing compression molding on the interior of the mould through a press to obtain a blank; the nominal pressure of the press machine is 8000-10000 KN, the nominal pressure stroke is 13-20 mm, the sliding block stroke is 600-800 mm, the air cushion force is 1500-2000 KN, the continuous stroke work of the press machine is 20-27 tons/m, and the compression ratio is 9: 8-9: 4.
(5) Standing the mould box with the blank inside obtained in the step (4) to harden the blank;
(6) demolding the die box after standing in the step (5) to enable the hardened blank to be removed from the die box, stacking the blanks and maintaining the blanks in a room-temperature environment;
(7) and (4) cutting the blank cured in the step (6) according to the required size, and polishing the front and back of the cut blank to obtain the graphite homogeneous fireproof heat-insulation core material.
The preparation method of the fireproof graphite heat-insulation core material for the external wall panel is characterized by comprising the following steps of: in the step (1), the stirring time is controlled to be 5-7 minutes, the stirring is low-speed premixing, and the rotating speed is 120 r/min;
in the step (2), the stirring time is controlled to be 5-6 minutes, and the rotating speed is 800 rmin;
and (3) stirring for 7-9 minutes at a rotation speed of 500 r/min.
The preparation method of the fireproof graphite heat-insulation core material for the external wall panel is characterized by comprising the following steps of: and (4) sequentially carrying out forward and reverse rotation stirring by the three-stage stirrer in the step (3), wherein the forward rotation stirring time and the reverse rotation stirring time respectively account for half.
The preparation method of the fireproof graphite heat-insulation core material for the external wall panel is characterized by comprising the following steps of: in the step (5), the standing environment temperature is controlled to be 26-30 ℃, and the standing time is 22-26 hours.
The preparation method of the fireproof graphite heat-insulation core material for the external wall panel is characterized by comprising the following steps of: in the step (6), the curing time is 12-16 days.
The invention uses graphite EPS particles as heat preservation base material, uses cement as main cementing material, and adds silica fume, high-efficiency complexing agent, organosilicon water repellent and active water to make heat preservation core material through the processing technologies of stirring, forming, pressing, curing, demoulding and the like, thus being a homogeneous plate-shaped product with the functions of heat preservation and heat insulation (having certain shape retention capability and no generation of melt drips in a fire state). The heat-insulating core material has low heat conductivity coefficient which is less than or equal to 0.046W/m.K, and the heat-insulating property can be completely comparable to that of a rock wool board; the grade A2 is fireproof and non-combustible, the compressive strength is more than or equal to 0.20 MPa, the tensile strength is more than or equal to 0.12 MPa, the breaking strength is more than or equal to 0.20 MPa, the volume water absorption is less than or equal to 8%, the softening coefficient is more than or equal to 0.7, the drying shrinkage rate is less than or equal to 0.3%, the upper density and the lower density of the heat-insulating core material are uniform, the maximum surface density deviation is less than or equal to 10%, frost and moisture regain are avoided, the water content is less than or equal to 8%, the small shrinkage after compounding.
Compared with the prior art, the invention has the advantages that:
the invention takes graphite EPS particles as heat insulation core materials of base materials, the A-grade is non-combustible, the heat conductivity coefficient is ultralow, the tensile strength is more than or equal to 0.12 MPa, and the compressive strength is more than or equal to 0.20 MPa. The rock wool board has the advantages of being non-flammable and high in strength, the cost is reduced by more than 10% compared with a rock wool board, the performance is guaranteed, the requirement for high strength is met, and meanwhile, the economy is considerable.
Detailed Description
The fireproof heat-insulating graphite core material for the external wall panel is prepared from cement, silica fume, a high-efficiency complexing agent, graphite EPS (expandable polystyrene) particles and active water, wherein the cement, the silica fume, the high-efficiency complexing agent, the graphite EPS particles, an organic silicon water repellent and the active water are in parts by weight:
the efficient complexing agent is prepared by mixing nano organic bentonite, a naphthalene-based efficient water reducing agent, a vegetable protein air entraining agent, a high-viscosity resin adhesive, a lithium-based curing agent and a phase-change material silicon dioxide aerogel. The weight parts of each component are as follows:
in the invention, the optimal weight parts of the components for preparing the graphite homogeneous fireproof heat-insulating core material 1 are as follows:
the optimal weight parts of the components of the high-efficiency complexing agent are as follows:
in the invention, the cement forming the fireproof and heat-insulating graphite core material is PII composite portland cement.
The preparation method of the fireproof graphite heat-insulation core material for the external wall panel comprises the following steps:
(1) and putting the cement, the silica fume and the efficient complexing agent into a primary stirrer according to respective parts by weight for premixing, homogenizing and stirring, wherein the stirring speed is 100-150 r/min, the stirring time is 5-7 minutes, the optimal stirring speed value is 120r/min, and the optimal stirring time value is 7 minutes. Obtaining a premix;
(2) adding the active water and the premix obtained in the step (1) in corresponding parts by weight into a secondary stirrer for fully stirring, and simultaneously adding an organic silicon water repellent into the secondary stirrer, wherein the stirring speed is controlled to be 800-1000 r/min, the stirring time is controlled to be 5-6 minutes, the optimal value of the stirring speed is 800r/min, the optimal value of the stirring time is 6 minutes, so that slurry is obtained:
(3) adding the slurry obtained in the step (3) and graphite EPS particles in corresponding weight parts into a three-stage stirrer for stirring, wherein the stirring speed is 400-600 r/min, the stirring time is 7-9 minutes, the optimal stirring speed is 500r/min, the optimal stirring time is 8 minutes, the three-stage stirrer sequentially performs forward and reverse stirring, and the forward and reverse stirring time respectively accounts for half, namely, the forward rotation time is 4 minutes, and the reverse rotation time is 4 minutes, so that particle slurry is obtained;
(4) pouring the granular slurry obtained in the step (3) into a prefabricated mould box at a constant speed, wherein the mould box is made of stainless steel materials, and performing compression molding on the interior of the mould through a press to obtain a blank; the technological parameters such as pressure data of the press machine are as follows: the pressure of the press machine is 8000-10000 KN in terms of nominal pressure, the stroke of the nominal pressure is 13-20 mm, the stroke of the sliding block is 600-800 mm, the air cushion force is 1500-2000 KN, the continuous stroke work of the press machine is 20-27 tons/m, and the compression ratio is 9: 8-9: 4. The optimal values are: the nominal pressure of the press is 8000KN, the nominal pressure stroke is 15mm, the slide block stroke is 650mm, the air cushion force is 1800KN, the continuous stroke work of the press is 25 tons/meter, and the compression ratio is 9: 6.
(5) Standing the mould box with the blank obtained in the step (4), wherein the standing environment temperature is controlled to be 26-30 ℃, the optimal temperature value is 28 ℃, the standing time is 22-26 hours, and the optimal standing time value is 24 hours, so that the blank is hardened;
(6) demolding the mold box after standing in the step (5) to enable the hardened blank to be removed from the mold box, stacking the blanks, and maintaining for 12-16 days in a room-temperature environment, wherein the optimal value of the maintaining time is 14 days;
(7) and (4) cutting the blank cured in the step (6) according to the required size, and polishing the front and back of the cut blank to obtain the graphite homogeneous fireproof heat-insulation core material.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.

Claims (8)

1. The utility model provides a graphite fire prevention heat preservation core that side fascia was used which characterized in that: the mortar is prepared from cement, silica fume, a high-efficiency complexing agent, graphite EPS particles, an organic silicon water repellent and active water, wherein the cement, the silica fume, the high-efficiency complexing agent, the graphite EPS particles, the organic silicon water repellent and the active water are in parts by weight:
2. the fireproof and heat-insulating graphite core material for the external wall panel as claimed in claim 1, wherein: the efficient complexing agent is prepared by mixing nano organic bentonite, a naphthalene-based efficient water reducing agent, a vegetable protein air entraining agent, a high-viscosity resin adhesive, a lithium-based curing agent and a phase-change material silicon dioxide aerogel. The weight parts of each component are as follows:
3. the fireproof and heat-insulating graphite core material for the external wall panel as claimed in claim 1, wherein: the cement is PII composite portland cement.
4. A preparation method of a graphite fireproof heat-insulation core material for an external wall panel is characterized by comprising the following steps: the process is as follows:
(1) putting the cement, the silica fume and the efficient complexing agent into a primary stirrer according to respective parts by weight for premixing, homogenizing and stirring to obtain a premix;
(2) adding the active water and the premix obtained in the step (1) in corresponding weight parts into a secondary stirrer for fully stirring, and simultaneously adding an organic silicon water repellent into the secondary stirrer to obtain slurry;
(3) adding the slurry obtained in the step (3) and graphite EPS particles in corresponding weight parts into a three-stage stirrer for stirring to obtain particle slurry;
(4) pouring the particle slurry obtained in the step (3) into a prefabricated mould box at a constant speed, and performing compression molding on the interior of the mould through a press to obtain a blank; the nominal pressure of the press is 8000KN, the nominal pressure stroke is 13mm, the sliding block stroke is 800mm, the air cushion force is 1500KN, the continuous stroke work of the press is 27 tons/m, and the compression ratio is 3:2.
(5) Standing the mould box with the blank inside obtained in the step (4) to harden the blank;
(6) demolding the die box after standing in the step (5) to enable the hardened blank to be removed from the die box, stacking the blanks and maintaining the blanks in a room-temperature environment;
(7) and (4) cutting the blank cured in the step (6) according to the required size, and polishing the front and back of the cut blank to obtain the graphite homogeneous fireproof heat-insulation core material.
5. The preparation method of the fireproof and heat-insulating graphite core material for the external wall panel according to claim 4 is characterized in that: in the step (1), the stirring time is controlled to be 5-7 minutes, the stirring is low-speed premixing, and the rotating speed is 120 r/min;
in the step (2), the stirring time is controlled to be 5-6 minutes, and the rotating speed is 800 rmin;
and (3) stirring for 7-9 minutes at a rotation speed of 500 r/min.
6. The preparation method of the fireproof graphite heat-insulating core material for the external wall panel according to claim 4 or 5, wherein the preparation method comprises the following steps: and (4) sequentially carrying out forward and reverse rotation stirring by the three-stage stirrer in the step (3), wherein the forward rotation stirring time and the reverse rotation stirring time respectively account for half.
7. The preparation method of the fireproof and heat-insulating graphite core material for the external wall panel according to claim 4 is characterized in that: in the step (5), the standing environment temperature is controlled to be 26-30 ℃, and the standing time is 22-26 hours.
8. The preparation method of the fireproof and heat-insulating graphite core material for the external wall panel according to claim 4 is characterized in that: in the step (6), the curing time is 12-16 days.
CN202011058292.6A 2020-09-30 2020-09-30 Graphite fireproof heat-insulation core material for external wall panel and preparation method thereof Pending CN112174605A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113248229A (en) * 2021-07-02 2021-08-13 汇克涂料(湖南)有限公司 Graphite inorganic composite polystyrene foam insulation board and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN102276203A (en) * 2011-06-07 2011-12-14 王建国 Antiflaming graphite polystyrene insulation board and preparation method thereof
CN103410232A (en) * 2013-08-02 2013-11-27 安徽中瑞节能装饰材料集团有限公司 Outer-wall external thermal-insulating system utilizing inorganic compound thermal-insulating board
CN106866063A (en) * 2016-12-30 2017-06-20 上海墙特节能材料有限公司 A kind of flame retardant type inorganic compounding EPS warming plates and preparation method thereof
CN110818349A (en) * 2019-11-13 2020-02-21 苏州奥崎建材科技有限公司 Siliceous modified EPS insulation board
CN111233396A (en) * 2020-01-19 2020-06-05 南京双善新材料有限公司 A-level composite fireproof insulation board and preparation method thereof
WO2020140327A1 (en) * 2019-01-02 2020-07-09 上海圣奎塑业有限公司 Heat insulation plate raw material composition, heat insulation plate, and production process for heat insulation plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102276203A (en) * 2011-06-07 2011-12-14 王建国 Antiflaming graphite polystyrene insulation board and preparation method thereof
CN103410232A (en) * 2013-08-02 2013-11-27 安徽中瑞节能装饰材料集团有限公司 Outer-wall external thermal-insulating system utilizing inorganic compound thermal-insulating board
CN106866063A (en) * 2016-12-30 2017-06-20 上海墙特节能材料有限公司 A kind of flame retardant type inorganic compounding EPS warming plates and preparation method thereof
WO2020140327A1 (en) * 2019-01-02 2020-07-09 上海圣奎塑业有限公司 Heat insulation plate raw material composition, heat insulation plate, and production process for heat insulation plate
CN110818349A (en) * 2019-11-13 2020-02-21 苏州奥崎建材科技有限公司 Siliceous modified EPS insulation board
CN111233396A (en) * 2020-01-19 2020-06-05 南京双善新材料有限公司 A-level composite fireproof insulation board and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113248229A (en) * 2021-07-02 2021-08-13 汇克涂料(湖南)有限公司 Graphite inorganic composite polystyrene foam insulation board and preparation method thereof
CN113248229B (en) * 2021-07-02 2021-09-28 汇克涂料(湖南)有限公司 Graphite inorganic composite polystyrene foam insulation board and preparation method thereof

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