CN113896476A - G50 graphite homogeneous fireproof insulation board and preparation method thereof - Google Patents
G50 graphite homogeneous fireproof insulation board and preparation method thereof Download PDFInfo
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- 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
- C04B28/04—Portland cements
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
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- 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
- C04B16/00—Use 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
- C04B16/04—Macromolecular compounds
- C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
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- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/16—Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/63—Flame-proofing agents
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- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, 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
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- 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
Abstract
The invention discloses a G50 graphite homogeneous fireproof insulation board and a preparation method thereof, and the G50 graphite homogeneous fireproof insulation board comprises the following components in parts by weight: graphite-type polyphenylene particles: 8-12 parts; ordinary portland cement: 65-80 parts; curing agent: 1-5 parts; redispersible latex powder: 4-7 parts; silicone waterproofing agents: 2-3 parts of a solvent; ultra-fine silica powder: 10-22 parts; flame retardant: 1.5-3 parts; PP reinforcing fiber: 2-3 parts of a solvent; obsidian beads: 6-9 parts of a solvent; water: 48-60 parts. According to the heat-insulating board, the flame retardant and the inorganic non-metallic mineral raw material obsidian beads are added to modify the graphite type polyphenyl particles, so that the graphite type polyphenyl particles have the performance of an organic heat-insulating material, and meanwhile, the combustion grade of the graphite type polyphenyl particles meets the standard requirement, the quasi-incombustible effect is achieved, the fire source can be effectively isolated, and the standard of safe building materials is met.
Description
Technical Field
The invention relates to the field of insulation boards, in particular to a G50 graphite homogeneous fireproof insulation board and a preparation method thereof.
Background
The insulation board market has two categories at present, one is inorganic insulation board, and the inside contains inorganic composition material, and its shortcoming coefficient of heat conductivity is high, and the cost price is expensive, and the construction is more complicated, for example need the mortar about a few centimeters more in the outer wall in the construction, and useless worker, waste material take time again, and some inside of its composition belongs to the hazardous substance, can appear similar skin allergy symptom under the improper condition of construction. The other type is an organic insulation board, such as a molded polystyrene insulation board, an extruded polystyrene insulation board, a foamed polyurethane insulation board and the like, the construction is more convenient, the cost is saved by about half compared with the conventional inorganic insulation board, and the organic insulation board has a certain market share. But present organic insulation board is with low costs, and it is effectual to keep warm, and construction convenience, but the burning grade is not up to standard, though can add fire-retardant thing at organic insulation board, but the effect is not very obvious, and can produce the poison gas when most conflagration breaing out, can lead to stifling, endangers life safety.
Disclosure of Invention
The invention aims to provide a G50 graphite homogeneous fireproof insulation board and a preparation method thereof, wherein the graphite type polyphenyl particles are modified by adding inorganic nonmetallic mineral raw material obsidian beads while adding a flame retardant, so that the graphite type polyphenyl particles have the performance of an organic insulation material, and the combustion grade meets the standard requirement, thereby achieving the quasi-non-combustible effect, effectively isolating a fire source and meeting the standard of safe building materials.
The purpose of the invention can be realized by the following technical scheme:
a G50 graphite homogeneous fireproof insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 8-12 parts;
ordinary portland cement: 65-80 parts;
curing agent: 1-5 parts;
redispersible latex powder: 4-7 parts;
silicone waterproofing agents: 2-3 parts of a solvent;
ultra-fine silica powder: 10-22 parts;
flame retardant: 1.5-3 parts;
PP reinforcing fiber: 2-3 parts of a solvent;
obsidian beads: 6-9 parts of a solvent;
water: 48-60 parts.
Further, the fireproof heat-insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 8 parts of a mixture;
ordinary portland cement: 65 parts of (1);
curing agent: 1 part;
redispersible latex powder: 4 parts of a mixture;
silicone waterproofing agents: 2 parts of (1);
ultra-fine silica powder: 10 parts of (A);
flame retardant: 1.5 parts;
PP reinforcing fiber: 2 parts of (1);
obsidian beads: 6 parts of (1);
water: 48 parts.
Further, the fireproof heat-insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 12 parts of (1);
ordinary portland cement: 80 parts of a mixture;
curing agent: 5 parts of a mixture;
redispersible latex powder: 7 parts;
silicone waterproofing agents: 3 parts of a mixture;
ultra-fine silica powder: 22 parts of (A);
flame retardant: 3 parts of a mixture;
PP reinforcing fiber: 3 parts of a mixture;
obsidian beads: 9 parts of (1);
water: 60 parts.
Further, the graphite type polyphenyl particles are subjected to foaming treatment, and the diameter of the graphite type polyphenyl particles is 3-4 mm.
Further, 425 above-labeled cement is adopted as the ordinary portland cement.
Furthermore, the particle size of 90% of the superfine silica fume is less than or equal to 0.01 mm.
Further, the flame retardant is an ammonium polyphosphate flame retardant or ferric oxide.
Further, the particle size of the obsidian bead is less than 2 mm.
A preparation method of a G50 graphite homogeneous fireproof insulation board comprises the following steps:
s1: accurately weighing each component, adding the ordinary portland cement into the superfine silica fume, and mixing and stirring for 0.8-1.2min in a dry powder state;
s2: adding PP reinforced fiber and silicone waterproofing agent into S1, stirring, and fully stirring uniformly the redispersible latex powder for 0.8-1.2 min;
s3: adding the flame retardant and the curing agent into S2, adding water, fully stirring and melting into slurry, and uniformly stirring for 1.2-1.8 min;
s4: adding graphite type polyphenyl particles and obsidian beads into a mixing stirrer, and completely coating the polyphenyl particles with the slurry obtained by stirring S3;
s5: and pouring the mixture into a mold, pressing and pressure maintaining for molding, pressing by a compression ratio of 30-50%, demolding after 8-12h, naturally curing for 24-96 h, sawing, polishing, packaging and warehousing.
The invention has the beneficial effects that:
1. the heat-insulating board really realizes low heat conductivity coefficient, has the characteristics of light weight, fire resistance, heat insulation, no pollution, strong tensile strength and the like, and has the fire resistance of the product of more than A2 level in the experimental process;
2. according to the heat-insulating board, the flame retardant and the inorganic non-metallic mineral raw material obsidian beads are added to modify the graphite type polyphenyl particles, so that the graphite type polyphenyl particles have the performance of an organic heat-insulating material, and meanwhile, the combustion grade of the graphite type polyphenyl particles meets the standard requirement, the quasi-incombustible effect is achieved, the fire source can be effectively isolated, and the standard of safe building materials is met.
Detailed Description
The following will clearly and completely describe the technical solutions in 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 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.
A G50 graphite homogeneous fireproof insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 8-12 parts;
ordinary portland cement: 65-80 parts;
curing agent: 1-5 parts;
redispersible latex powder: 4-7 parts;
silicone waterproofing agents: 2-3 parts of a solvent;
ultra-fine silica powder: 10-22 parts;
flame retardant: 1.5-3 parts;
PP reinforcing fiber: 2-3 parts of a solvent;
obsidian beads: 6-9 parts of a solvent;
water: 48-60 parts.
The graphite type polyphenyl granules are subjected to foaming treatment, and the diameter of the graphite type polyphenyl granules is 3-4 mm.
The ordinary portland cement uses 425 cement with the above designation.
And 90% of the superfine silica powder has the particle size of less than or equal to 0.01 mm.
The flame retardant is ammonium polyphosphate flame retardant or ferric oxide.
The particle diameter of the obsidian bead is less than 2 mm.
In order to explain the preparation method of the G50 graphite homogeneous fireproof insulation board better, the following specific examples are also provided:
example 1:
weighing the following raw materials in sequence according to the weight unit of 1 kg:
graphite-type polyphenylene particles: 12 kg;
ordinary portland cement: 80 kg;
curing agent: 5 kg;
redispersible latex powder: 4 kg;
silicone waterproofing agents: 2 kg;
ultra-fine silica powder: 20 kg;
ammonium polyphosphate flame retardant: 2 kg;
PP reinforcing fiber: 2 kg;
obsidian beads: 8 kg;
water: 60 kg.
Based on the raw materials in parts by weight, the preparation method of the homogeneous fireproof insulation board containing G50 graphite is provided:
adding 80Kg of ordinary Portland cement into 20Kg of ground ultrafine silica powder, mixing and stirring for 0.8min, adding 2Kg of PP (polypropylene) reinforced fiber, 2Kg of silicone waterproofing agent and 4Kg of redispersible latex powder, stirring for 1.2min, adding 2Kg of ammonium polyphosphate flame retardant, 5Kg of curing agent and 60Kg of normal temperature water, stirring for 1.5min, and stirring to form slurry;
and then adding 12kg of graphite type polyphenyl particles and 8kg of obsidian beads and the slurry, fully mixing and stirring, pouring into a mold, pressing, maintaining pressure and forming, wherein the compression ratio is 30%, demolding after maintaining pressure for 8h, naturally curing for 96h, sawing, polishing, packaging and warehousing.
Comparative example 1
The same as in example 1, except that obsidian beads were not contained.
Comparative example 2
The same as example 1, except that the obsidian bead was 2 kg.
Comparative example 3
The same as example 1, except that the obsidian bead was 15 kg.
Example 2:
weighing the following raw materials in sequence according to the weight unit of 1 kg:
graphite-type polyphenylene particles: 8 kg;
ordinary portland cement: 70 kg;
curing agent: 2 kg;
redispersible latex powder: 6 kg;
silicone waterproofing agents: 2 kg;
ultra-fine silica powder: 15 kg;
iron sesquioxide: 2 kg;
PP engineering reinforced fiber: 2 kg;
obsidian beads: 6 kg;
water: 48 Kg.
Based on the raw materials in parts by weight, the preparation method of the homogeneous fireproof insulation board containing G50 graphite is provided:
adding 70Kg of ordinary portland cement into 15Kg of superfine silica powder, mixing and stirring for 0.9min, adding 2Kg of PP (polypropylene) reinforced fiber, 2Kg of silicone waterproofing agent and 6Kg of redispersible latex powder, stirring for 1.1min, adding 2Kg of ferric oxide, 2Kg of curing agent and 48Kg of normal temperature water, stirring for 1.8min, and stirring to form slurry;
and then adding 8kg of graphite type polyphenyl particles and 6kg of obsidian beads and the slurry, fully mixing and stirring, pouring into a mold, pressing, maintaining pressure and forming, wherein the compression ratio is 40%, maintaining pressure for 9h, then demolding, naturally curing for 82h, sawing, polishing, packaging and warehousing.
Example 3:
weighing the following raw materials in sequence according to the weight unit of 1 kg:
graphite-type polyphenylene particles: 9 kg;
ordinary portland cement: 65 kg;
curing agent: 1 kg;
redispersible latex powder: 6 kg;
silicone waterproofing agents: 2 kg;
ultra-fine silica powder: 15 kg;
ammonium polyphosphate flame retardant: 3 kg;
PP reinforcing fiber: 2 kg;
obsidian beads: 7 kg;
water: 49 Kg.
Based on the raw materials in parts by weight, the preparation method of the homogeneous fireproof insulation board containing G50 graphite is provided:
adding 65Kg of ordinary portland cement into 15Kg of ground superfine silica powder, mixing and stirring for 1min, adding 2Kg of PP (polypropylene) reinforced fiber, 2Kg of silicone waterproofing agent and 6Kg of redispersible latex powder, stirring for 1min, adding 3Kg of ammonium polyphosphate flame retardant, 1Kg of curing agent and 49Kg of normal temperature water, stirring for 1.5min, and stirring to form slurry;
and then adding 9kg of graphite type polyphenyl particles and 7kg of obsidian beads and the slurry, fully mixing and stirring, pouring into a mold, pressing, maintaining pressure and forming, wherein the compression ratio is 50%, maintaining pressure for 10h, demolding, naturally curing for 68h, sawing, polishing, packaging and warehousing.
Example 4:
weighing the following raw materials in sequence according to the weight unit of 1 kg:
graphite-type polyphenylene particles: 11 kg;
ordinary portland cement: 65 kg;
curing agent: 4 kg;
redispersible latex powder: 7 kg;
silicone waterproofing agents: 3 kg;
ultra-fine silica powder: 22 kg;
iron sesquioxide: 2 kg;
PP engineering reinforced fiber: 3 kg;
obsidian beads: 9 kg;
water; 52 Kg.
Based on the raw materials in parts by weight, the preparation method of the homogeneous fireproof insulation board containing G50 graphite is provided:
adding 65Kg of ordinary portland cement into 22Kg of ground ultrafine silica powder, mixing and stirring for 1.1min, adding 3Kg of PP (polypropylene) reinforced fiber, 3Kg of silicone waterproofing agent and 7Kg of redispersible latex powder, stirring for 0.9min, adding 2Kg of ferric oxide, 4Kg of curing agent and 52Kg of normal temperature water, stirring for 1.2min, and stirring to form slurry;
and then adding 12kg of graphite type polyphenyl particles and 9kg of obsidian beads and the slurry, fully mixing and stirring, pouring into a mold, pressing and pressure maintaining for molding, wherein the compression ratio is 35%, maintaining the pressure for 11h, then demolding, naturally curing for 48h, sawing, polishing, packaging and warehousing.
Example 5:
weighing the following raw materials in sequence according to the weight unit of 1 kg:
graphite-type polyphenylene particles: 10 kg;
ordinary portland cement: 75 kg;
curing agent: 3 kg;
redispersible latex powder: 4.5 kg;
silicone waterproofing agents: 2 kg;
ultra-fine silica powder: 10 kg;
ammonium polyphosphate flame retardant: 1.5 kg;
PP reinforcing fiber: 2.8 kg;
obsidian beads: 7 kg;
water: 58 Kg.
Based on the raw materials in parts by weight, the preparation method of the homogeneous fireproof insulation board containing G50 graphite is provided:
adding 75Kg of ordinary portland cement into 10Kg of ground superfine silica powder, mixing and stirring for 1.2min, adding 2.8Kg of PP (polypropylene) reinforced fiber, 2Kg of silicone waterproofing agent and 4.5Kg of redispersible latex powder, stirring for 0.8min, adding 1.5Kg of ammonium polyphosphate fire retardant, 3Kg of curing agent and 58Kg of normal temperature water, stirring for 1.2min, and stirring to form slurry;
then adding 10kg of graphite type polyphenyl particles and 7kg of obsidian beads and the slurry, fully mixing and stirring, pouring into a mold, pressing and pressure maintaining for molding, wherein the compression ratio is 45%, maintaining the pressure for 12h, then demolding, naturally curing for 24h, sawing, polishing, packaging and warehousing.
The products obtained in examples 1 to 5 were subjected to performance test, and the specific results are shown in table 1:
TABLE 1
Note: the dry apparent density detection method, the compression strength detection method, the breaking strength detection method, the volume water absorption detection method and the heat storage coefficient detection method are all according to JG/T563-2017;
the combustion performance and the dry apparent density of the products obtained in the comparative example 1 and the comparative document 2 are detected and analyzed, the combustion performance of the comparative example 1 is B grade after detection, and does not meet the requirements of JG/T563-2017, and the dry apparent density of the comparative document 2 is higher, so that the bulk density is higher, and the requirements of JG/T563-2017 are not met;
from the above table, it can be seen that: the fireproof insulation board meets the technical index requirements of various standards, and the graphite type polyphenyl particles are modified by adding the flame retardant and the inorganic nonmetallic mineral raw material obsidian beads, so that the fireproof insulation board has the performance of an organic insulation material, and the combustion grade of the fireproof insulation board meets the requirements of the standards.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing 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, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (9)
1. The G50 graphite homogeneous fireproof insulation board is characterized by comprising the following components in parts by weight:
graphite-type polyphenylene particles: 8-12 parts;
ordinary portland cement: 65-80 parts;
curing agent: 1-5 parts;
redispersible latex powder: 4-7 parts;
silicone waterproofing agents: 2-3 parts of a solvent;
ultra-fine silica powder: 10-22 parts;
flame retardant: 1.5-3 parts;
PP reinforcing fiber: 2-3 parts of a solvent;
obsidian beads: 6-9 parts of a solvent;
water: 48-60 parts.
2. The homogeneous fireproof insulation board of G50 graphite according to claim 1, wherein the fireproof insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 8 parts of a mixture;
ordinary portland cement: 65 parts of (1);
curing agent: 1 part;
redispersible latex powder: 4 parts of a mixture;
silicone waterproofing agents: 2 parts of (1);
ultra-fine silica powder: 10 parts of (A);
flame retardant: 1.5 parts;
PP reinforcing fiber: 2 parts of (1);
obsidian beads: 6 parts of (1);
water: 48 parts.
3. The homogeneous fireproof insulation board of G50 graphite according to claim 1, wherein the fireproof insulation board comprises the following components in parts by weight:
graphite-type polyphenylene particles: 12 parts of (1);
ordinary portland cement: 80 parts of a mixture;
curing agent: 5 parts of a mixture;
redispersible latex powder: 7 parts;
silicone waterproofing agents: 3 parts of a mixture;
ultra-fine silica powder: 22 parts of (A);
flame retardant: 3 parts of a mixture;
PP reinforcing fiber: 3 parts of a mixture;
obsidian beads: 9 parts of (1);
water: 60 parts.
4. The homogeneous fireproof thermal insulation board of G50 graphite according to claim 1, wherein the graphite-type polyphenyl particles are foamed and have a diameter of 3-4 mm.
5. The homogeneous fireproof thermal insulation board of G50 graphite as claimed in claim 1, wherein said Portland cement is cement labeled above 425.
6. The homogeneous fireproof thermal insulation board of G50 graphite according to claim 1, wherein 90% of the ultrafine silica powder has a particle size of 0.01 mm or less.
7. The homogeneous fireproof insulation board of G50 graphite according to claim 1, wherein the flame retardant is ammonium polyphosphate flame retardant or ferric oxide.
8. The homogeneous fireproof thermal insulation board of G50 graphite according to claim 1, wherein the obsidian bead has a particle size of less than 2 mm.
9. The preparation method of the fireproof heat-insulation board according to claim 1, wherein the preparation method comprises the following steps:
s1: accurately weighing each component, adding the ordinary portland cement into the superfine silica fume, and mixing and stirring for 0.8-1.2min in a dry powder state;
s2: adding PP reinforced fiber and silicone waterproofing agent into S1, stirring, and fully stirring uniformly the redispersible latex powder for 0.8-1.2 min;
s3: adding the flame retardant and the curing agent into S2, adding water, fully stirring and melting into slurry, and uniformly stirring for 1.2-1.8 min;
s4: adding graphite type polyphenyl particles and obsidian beads into a mixing stirrer, and completely coating the polyphenyl particles with the slurry obtained by stirring S3;
s5: and pouring the mixture into a mold, pressing and pressure maintaining for molding, pressing by a compression ratio of 30-50%, demolding after 8-12h, naturally curing for 24-96 h, sawing, polishing, packaging and warehousing.
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|---|---|---|---|---|
| CN111792879A (en) * | 2019-04-09 | 2020-10-20 | 中国地质大学（北京） | Heat insulation material prepared from obsidian and preparation method thereof |
| CN110590275A (en) * | 2019-09-02 | 2019-12-20 | 合肥候鸟新型材料有限公司 | Graphite polyphenyl particle non-combustible heat preservation plate and preparation method thereof |
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Application publication date: 20220107 |