CN112920546A - Mineral fiber reinforced environment-friendly building board and preparation method thereof - Google Patents
Mineral fiber reinforced environment-friendly building board and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to the technical field of green building design, in particular to a manufacturing technology of an energy-saving environment-friendly building board and a green building material. The invention adopts a composite hot-press molding technology, and the composite material prepared from mineral fiber, magnesium hydroxide, phosphoric acid, expanded perlite, isocyanate propyl triethoxysilane, phenolic resin, epoxy resin, plasticizer, hexamethylenetetramine and polyurethane has low heat conductivity coefficient and obvious energy-saving and noise-reducing effects, thereby becoming the basic guarantee of reaching the standard of the total energy consumption of buildings in the whole society. The mineral fiber with low price and easy availability is adopted to enhance the mechanical property of the building board, the compressive strength and the flexural strength are improved by 10-50 times, and the building board is solid and reliable and is not easy to damage and break. The magnesium hydroxide inorganic flame retardant which is non-toxic, non-corrosive and excellent in stability is adopted, so that the defect that a composite material using a halogen (such as bromine) flame retardant can generate a large amount of toxic and corrosive gas and smoke in the combustion process is overcome.
Description
Technical Field
The invention relates to the technical field of green building design, in particular to a manufacturing technology of an energy-saving environment-friendly building board and a green building material.
Background
The building is a modern civilized sign, the green building material plays an important role in water-air balance, air purification, ecological balance and natural ecological cycle of urban living environment, the building board is used as a common building material, the performance of the building board directly influences the building quality, and the building board with excellent comprehensive performance is an important requirement and guarantee of the building quality. The organic heat-insulating material has small heat conductivity coefficient and good heat-insulating effect, but is easy to burn, can accelerate flame to spread once a fire disaster occurs, and has a large amount of toxic gas to be discharged. In addition, the organic heat-insulating material is not aging-resistant, has large deformation coefficient and low mechanical strength. The ceramic plate has the properties of heat insulation, heat preservation, sound insulation, fire prevention, moisture prevention, light weight and the like, and is widely applied to the building field and the heat insulation and preservation field, for example, CN 110590332 discloses an environment-friendly heat preservation decoration foamed ceramic plate, and CN 107459338 discloses a preparation method of a heat preservation foamed material for waste ceramic-based building outer walls, but the firing temperature is high, and is over 1000 ℃, and the energy consumption is large; and the porosity is low, and the connectivity of internal pores caused by high-temperature sintering also causes the defects of increased water absorption, freeze-thaw cycle and the like, so that the heat preservation and impact resistance performance is reduced.
Therefore, there is a need to develop an environment-friendly building board with good flame retardancy and good comprehensive properties of heat preservation, sound insulation, weather resistance, mechanical mechanics and the like, and the market demand is met by excellent environment friendliness, durability and flame retardancy.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to solve the technical problems that the organic heat-insulating material is easy to burn and has low mechanical strength; and the ceramic plate has the defects of large firing energy consumption, water absorption and freeze-thaw cycle. The building board has good flame retardant property and comprehensive performance, and is stable and excellent in mechanical property, weather resistance, environmental protection, durability, heat preservation and the like. Meanwhile, the invention also provides a preparation method of the environment-friendly building board, which is simple, convenient to operate, short in production period, suitable for continuous large-scale production and high in economic value, social value and ecological value.
In order to realize the purpose, the invention adopts the following technical scheme:
the invention provides a mineral fiber reinforced environment-friendly building board which is prepared from the following raw materials in parts by mass: 8-48 parts of mineral fiber, 5-8 parts of magnesium hydroxide, 1-2 parts of phosphoric acid, 5-6 parts of expanded perlite, 1-3 parts of isocyanate propyl triethoxysilane, 14-25 parts of phenolic resin, 14-25 parts of epoxy resin, 4-6 parts of plasticizer, 6-8 parts of hexamethylenetetramine and 6-8 parts of polyurethane.
In the technical scheme, the feed is further prepared from the following raw materials in parts by mass: 24 parts of mineral fiber, 7 parts of magnesium hydroxide, 2 parts of phosphoric acid, 6 parts of expanded perlite, 2 parts of isocyanate propyl triethoxysilane, 20 parts of phenolic resin, 20 parts of epoxy resin, 5 parts of plasticizer, 7 parts of hexamethylenetetramine and 7 parts of polyurethane.
The method comprises the following steps:
s1, taking 8-48 parts of mineral fiber, 5-8 parts of magnesium hydroxide and 1-2 parts of phosphoric acid, grinding and kneading for 30-45 min.
In the above technical scheme, further, the mineral fibers are at least 2 of wollastonite fibers, sepiolite fibers, attapulgite fibers and palygorskite fibers.
In the technical scheme, the diameter of the mineral fiber is 300-500nm, and the length-diameter ratio is (15-50): 1; the diameter of the mineral fiber is preferably 300-400nm, and the length-diameter ratio is preferably (15-20): 1; more preferably, the diameter of the mineral fiber sepiolite fiber is 400-500nm, and the length-diameter ratio is (35-50): 1. The mineral fiber has the diameter far lower than that of all organic fibers and metal fibers, can resist higher temperature, can seal a large amount of still air due to a micro-tubular gap formed by the micro-nano fibers, has lower heat conductivity coefficient, is a high-quality heat-insulating material, and has performance advantages in the aspects of heat insulation, filtration, sound absorption and the like.
Due to the unique layer chain structure and pore channel structure of the mineral fiber, the composite particle has good adsorption performance and ion exchange capacity, and under the condition that the activated auxiliary agent phosphoric acid participates in the reaction, the firm chemical bonding is realized through grinding mechanical force and dehydroxylation, so that the mineral fiber and the micro-nano magnesium hydroxide particles form the composite particle with flame retardance.
In the above technical solution, further, Mg (OH) in the magnesium hydroxide2Mass content of more than 95 percent and granularity D50200-300 nm; preferably, Mg (OH)2The mass content is 98 percent, and the granularity D50200-250 nm. In the flame-retardant process of the magnesium hydroxide, a formed polymer carbonization zone can effectively inhibit combustion; the decomposed product magnesium oxide is a high-temperature-resistant substance, and the magnesium oxide covers the surface of the high polymer, so that the air isolation efficiency can be greatly improved, and the effect of further preventing combustion is achieved. The magnesium hydroxide has high decomposition temperature, soft texture and fine granularity, and is suitable for the processing requirement of polymers.
S2, adding 5-6 parts of expanded perlite and 1-3 parts of isocyanate propyl triethoxysilane into the material obtained in the step S1, mixing for 10-15min, and heating to 105-235 ℃.
In the above technical solution, further, the bulk density of the expanded perlite is 100-3Preferably 150kg/m3. The composite material has good heat preservation efficiency and super-strong stability, and is suitable for being used as a heat preservation and insulation building material.
Isocyanate propyl triethoxy silane contains two different active genes in the molecule: isocyanate and ethoxy are used for coupling organic molecules and inorganic materials, so that the cohesiveness of the products is enhanced, and the mechanical, electrical, water-resistant and anti-aging properties of the products are improved.
S3, adding 14-25 parts of phenolic resin and 14-25 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 10-20min to enable the resin to be uniformly coated on the surfaces of the inorganic material particles.
The phenolic resin has good flame retardance and low smoke fog property, does not burn, melt or drip in fire, and has little toxic gas.
The epoxy resin is a general name of a polymer containing more than two epoxy groups in a molecule, and due to the chemical activity of the epoxy groups, a plurality of compounds containing active hydrogen can be used for opening the ring, curing and crosslinking to generate a network structure, so that the epoxy resin has excellent physical, mechanical and electrical insulation properties and adhesion properties with various materials.
S4, adding 4-6 parts of plasticizer into the material obtained in the step S3, and stirring for 2-3 min. The plasticizer is phthalate ester or aliphatic dibasic acid ester.
The plasticizer is added to weaken the secondary valence bonds among resin molecules, increase the mobility of the molecular bonds of the resin, and reduce the crystallinity of the resin molecules, so that the performance of the resin is improved, the brittleness of the resin is reduced, and the mechanical performance is improved.
S5, adding 6-8 parts of hexamethylenetetramine and 6-8 parts of polyurethane into the material obtained in the step S4, and stirring for 5-8 min.
Adding curing agent and stirring to cure the resin coated on the surface of the inorganic particle, and forming giant molecule with three-dimensional network structure through ring-opening addition polymerization and crosslinking reaction, thereby having strength.
In the above technical solution, further, the concentration of the phosphoric acid is 0.5 mol/L.
In the above technical solution, the plasticizer is phthalate or aliphatic dibasic acid ester.
The invention also provides a preparation method of the mineral fiber reinforced environment-friendly building board, which comprises the following steps:
s1, grinding and kneading 8-48 parts of mineral fiber, 5-8 parts of magnesium hydroxide and 1-2 parts of phosphoric acid for 30-45 min;
the mineral fiber has the diameter far lower than that of all organic fibers and metal fibers, can resist higher temperature, can seal a large amount of still air due to a micro-tubular gap formed by the micro-nano fibers, has lower heat conductivity coefficient, is a high-quality heat-insulating material, and has performance advantages in the aspects of heat insulation, filtration, sound absorption and the like. Due to the unique layer chain structure and pore channel structure of the mineral fiber, the composite particle has good adsorption performance and ion exchange capacity, and under the condition that the activated auxiliary agent phosphoric acid participates in the reaction, the firm chemical bonding is realized through grinding mechanical force and dehydroxylation, so that the mineral fiber and the micro-nano magnesium hydroxide particles form the composite particle with flame retardance. In the flame-retardant process of the magnesium hydroxide, a formed polymer carbonization zone can effectively inhibit combustion; the decomposed product magnesium oxide is a high-temperature-resistant substance, and the magnesium oxide covers the surface of the high polymer, so that the air isolation efficiency can be greatly improved, and the effect of further preventing combustion is achieved. The magnesium hydroxide has high decomposition temperature, soft texture and fine granularity, and is suitable for the processing requirement of polymers.
S2, adding 5-6 parts of expanded perlite and 1-3 parts of isocyanate propyl triethoxysilane into the material obtained in the step S1, mixing for 10-15min, and heating to 105-235 ℃;
the expanded perlite has good heat preservation efficiency and super-strong stability, and is suitable for being used as a heat preservation and insulation building material.
Isocyanate propyl triethoxy silane contains two different active genes in the molecule: isocyanate and ethoxy are used for coupling organic molecules and inorganic materials, so that the cohesiveness of the products is enhanced, and the mechanical, electrical, water-resistant and anti-aging properties of the products are improved.
S3, adding 14-25 parts of phenolic resin and 14-25 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 10-20min to enable the resin to uniformly coat the surface of inorganic material particles;
the phenolic resin has good flame retardance and low smoke fog property, does not burn, melt or drip in fire, and has little toxic gas.
The epoxy resin is a general name of a polymer containing more than two epoxy groups in a molecule, and due to the chemical activity of the epoxy groups, a plurality of compounds containing active hydrogen can be used for opening the ring, curing and crosslinking to generate a network structure, so that the epoxy resin has excellent physical, mechanical and electrical insulation properties and adhesion properties with various materials.
S4, adding 4-6 parts of plasticizer into the material obtained in the step S3, and stirring for 2-3 min;
the plasticizer is added to weaken the secondary valence bonds among resin molecules, increase the mobility of the molecular bonds of the resin, and reduce the crystallinity of the resin molecules, so that the performance of the resin is improved, the brittleness of the resin is reduced, and the mechanical performance is improved.
S5, adding 6-8 parts of hexamethylenetetramine and 6-8 parts of polyurethane into the material obtained in the step S4, and stirring for 5-8 min;
hexamethylenetetramine is used as a curing agent, added and stirred to cure the resin coated on the surface of the inorganic particles, and a giant molecule with a three-dimensional network structure is formed through ring-opening addition polymerization and crosslinking reaction, so that the strength is realized.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying 25-35MPa pressure to the material, carrying out die pressing for 0.5-2.0min to obtain a required building board blank, drying, and naturally curing at normal temperature for 5-6h to obtain a final product.
In the above technical solution, preferably, the mineral fibers are wollastonite fibers and sepiolite fibers, preferably, the wollastonite fibers have a diameter of 300-400nm and a length-diameter ratio (15-20): 1; preferably, the diameter of the sepiolite fiber is 400-500nm, and the length-diameter ratio is (35-50): 1.
In the above-mentioned aspect, it is preferable that Mg (OH) in the magnesium hydroxide is contained2The mass content is 98 percent, and the granularity D50200-250 nm.
In the above technical solution, preferably, the bulk density of the expanded perlite is 150kg/m3。
In the above technical solution, it is preferable that the blending ratio of the phenolic resin in the step S3 is 20 parts, and the blending ratio of the epoxy resin is 20 parts.
In the above technical scheme, preferably, the material uniformly stirred in step S4S5 is poured into a hydraulic press, compacted and leveled, and a pressure of 30MPa is applied to the material for mold pressing for 1.0min to obtain a required building board blank, which is dried and naturally cured at normal temperature for 5.5 h.
The invention has the beneficial effects that:
the invention adopts the magnesium hydroxide inorganic flame retardant which is nontoxic, non-corrosive and excellent in stability, and overcomes the defect that a composite material using a halogen (such as bromine) containing flame retardant can generate a large amount of toxic and corrosive gas and smoke in the combustion process. The magnesium hydroxide flame retardant has flame retardant and filling functions, the flame retardant performance grade can reach B1 grade, and the flame retardant performance requirements of national standards of building materials are completely met.
The mineral fiber with low price and easy availability is adopted to enhance the mechanical property of the building board, the compressive strength and the flexural strength are improved by 10-50 times, and the building board is solid and reliable and is not easy to damage and break.
The composite thermal insulation material prepared by the composite hot press molding technology has low thermal conductivity and obvious energy-saving and noise-reducing effects, becomes a basic guarantee for meeting the standard of total energy consumption of buildings in the whole society, and can continuously promote the energy-saving work of green buildings.
Detailed Description
The following non-limiting examples are presented to enable those of ordinary skill in the art to more fully understand the present invention and are not intended to limit the invention in any way.
The performance of the mineral fiber reinforced environment-friendly building board is mainly detected by taking the apparent density, the thermal conductivity coefficient, the compressive strength, the flexural strength and the flame retardant property of a sample as main detection contents, and in the following embodiment, the determination method of each performance index is as follows:
the detection method of the apparent density and the heat conductivity coefficient comprises the following steps: according to GB/T5486-2008 inorganic hard heat insulation product test method, a DRH type thermal conductivity coefficient tester produced by Wengtan Hunan instruments ltd is adopted for measurement.
The detection method of the compressive strength and the flexural strength comprises the following steps: according to GB/T10303-2001 expanded perlite heat insulation products, a WDW-100 electronic universal tester manufactured by Jinan Sida test technology Limited company is adopted to test a test sample.
The flame retardant performance of the material is tested according to GB/T5464-2010 building material incombustibility test method and GB 8624 and 2012 building material and product combustion performance grading.
The raw materials and auxiliary agents used in the following examples are commercially available.
Example 1
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D506 portions of wollastonite fiber with 350nm of length-diameter ratio of 18:1 and particle diameter D506 parts of sepiolite fiber with the length-diameter ratio of 45:1 of 430nm and the particle diameter D50380nm, length-diameter ratio of 6 parts of attapulgite fiber with the particle diameter D of 15:1506 parts of palygorskite fiber with the length-diameter ratio of 25:1 of 400 nm; mg (OH)298% by mass and a particle size D507 parts of 200nm magnesium hydroxide and 2 parts of 0.5mol/L phosphoric acid were kneaded for 40 minutes.
S2, taking the bulk density of 180kg/m36 parts of expanded perlite and 2 parts of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 12min, and heated to 120 ℃.
And S3, adding 20 parts of phenolic resin and 20 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 15min to enable the resin to uniformly coat the surface of the inorganic material particles.
S4, adding 5 parts of plasticizer dioctyl phthalate into the material obtained in the step S3, and stirring for 3 min.
S5, adding 7 parts of hexamethylenetetramine and 7 parts of polyurethane into the material obtained in the step S4, and stirring for 7 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying pressure of 30MPa to the material, carrying out die pressing for 1.0min to obtain a required building board blank, drying, and naturally curing for 5.5h at normal temperature to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Example 2
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D5020 parts of wollastonite fiber with the length-diameter ratio of 15:1 of 350nm and the particle diameter D50Sepiolite with 350nm length-diameter ratio of 15:14 parts of fiber and particle diameter D503 parts of attapulgite fiber with the length-diameter ratio of 15:1 of 350 nm; mg (OH)298% by mass, particle size D507 parts of 200nm magnesium hydroxide and 1 part of phosphoric acid are ground and kneaded for 35 min.
S2, taking the bulk density as 150kg/m36 parts of expanded perlite and 1 part of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 10min, and heated to 105 ℃.
S3, adding 14 parts of phenolic resin and 25 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 14min to enable the resin to uniformly coat the surface of the inorganic material particles.
S4, adding 5 parts of plasticizer adipic acid di (2-ethyl) hexyl ester into the material obtained in the step S3, and stirring for 2 min.
S5, adding 8 parts of hexamethylenetetramine and 6 parts of polyurethane into the material obtained in the step S4, and stirring for 6 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying 25MPa pressure to the material, carrying out die pressing for 0.5min to obtain a required building board blank, drying, and naturally curing for 5h at normal temperature to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Example 3
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D5020 parts of wollastonite fiber with the length-diameter ratio of 15:1 of 350nm and the particle diameter D5012 parts of sepiolite fiber with the length-diameter ratio of 15:1 of 350nm and the particle diameter D5012 parts of palygorskite fiber with the length-diameter ratio of 15:1 and the particle size of 350 nm; mg (OH)298% by mass, particle size D505 parts of 220nm magnesium hydroxide and 1 part of phosphoric acid are ground and kneaded for 30 min.
S2, taking the bulk density as 100kg/m36 parts of expanded perlite and 1 part of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 12min, and heated to 120 ℃.
S3, adding 14 parts of phenolic resin and 14 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 13min to enable the resin to be uniformly coated on the surfaces of the inorganic material particles.
S4, adding 4 parts of plasticizer dioctyl phthalate into the material obtained in the step S3, and stirring for 2 min.
S5, adding 6 parts of hexamethylenetetramine and 6 parts of polyurethane into the material obtained in the step S4, and stirring for 7 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying 35MPa of pressure to the material, carrying out die pressing for 2.0min to obtain a required building board blank, drying, and naturally curing for 6h at normal temperature to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Example 4
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D505 parts of wollastonite fiber with the length-diameter ratio of 15:1 of 350nm and the particle diameter D504 parts of sepiolite fibers with the length-diameter ratio of 350nm and the ratio of 15: 1; mg (OH)298% by mass, particle size D508 parts of 230nm magnesium hydroxide and 2 parts of phosphoric acid were milled and kneaded for 45 min.
S2, taking the bulk density as 200kg/m36 parts of expanded perlite and 3 parts of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 10min, and heated to 235 ℃.
S3, adding 25 parts of phenolic resin and 25 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 20min to enable the resin to be coated on the surfaces of the inorganic material particles uniformly.
S4, 6 parts of plasticizer adipic acid di (2-ethyl) hexyl ester is added into the material obtained in the step S3 and stirred for 2 min.
S5, adding 8 parts of hexamethylenetetramine and 8 parts of polyurethane into the material obtained in the step S4, and stirring for 6 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying 28MPa of pressure to the material, carrying out die pressing for 1.5min to obtain a required building board blank, drying, and naturally curing for 5h at normal temperature to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Example 5
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D505 parts of wollastonite fiber with the length-diameter ratio of 15:1 of 350nm and the particle diameter D5025 parts of attapulgite fiber with the length-diameter ratio of 350nm and 15: 1; mg (OH)298% by mass, particle size D505 parts of 230nm magnesium hydroxide and 1 part of phosphoric acid were milled and kneaded for 30 min.
S2, taking the bulk density as 120kg/m35 parts of expanded perlite and 1 part of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 15min, and heated to 105 ℃.
S3, adding 25 parts of phenolic resin and 14 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 10min to enable the resin to uniformly coat the surface of the inorganic material particles.
S4, adding 5 parts of plasticizer dioctyl phthalate into the material obtained in the step S3, and stirring for 3 min.
S5, adding 8 parts of hexamethylenetetramine and 6 parts of polyurethane into the material obtained in the step S4, and stirring for 8 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying pressure of 30MPa to the material, carrying out die pressing for 1.5min to obtain a required building board blank, drying, and naturally curing at normal temperature for 6h to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Example 6
A mineral fiber reinforced environment-friendly building board and a preparation method thereof are disclosed, wherein the preparation method comprises the following steps:
s1, taking particle diameter D5030 parts of wollastonite fiber with the length-diameter ratio of 15:1 and 5 parts of palygorskite fiber with the length-diameter ratio of 15:1, wherein the wollastonite fiber is 350 nm; mg (OH)2Mass content ofAmount 98%, particle size D505 parts of 250nm magnesium hydroxide and 1 part of phosphoric acid are ground and kneaded for 38 min.
S2, taking the bulk density as 190kg/m35 parts of expanded perlite and 1 part of isocyanate propyl triethoxysilane were added to the material of step S1, mixed for 10min, and heated to 235 ℃.
S3, adding 18 parts of phenolic resin and 18 parts of epoxy resin into the heated material obtained in the step S2, and stirring for 19min to enable the resin to be coated on the surfaces of the inorganic material particles uniformly.
S4, adding 5 parts of plasticizer adipic acid di (2-ethyl) hexyl ester into the material obtained in the step S3, and stirring for 2 min.
S5, adding 6 parts of hexamethylenetetramine and 6 parts of polyurethane into the material obtained in the step S4, and stirring for 5 min.
And S6, pouring the uniformly stirred material obtained in the step S5 into a hydraulic press, compacting by vibration, applying 31MPa of pressure to the material, carrying out die pressing for 0.5min to obtain a required building board blank, drying, and naturally curing at normal temperature for 6h to obtain a final product.
The performance test results of the mineral fiber reinforced environment-friendly building board are shown in table 1.
Comparative example 1
Phenolic aldehyde insulation board: taking 50-90 parts of phenolic resin, 4-30 parts of surfactant, 1-15 parts of foaming agent, 1-30 parts of acid hardener and other auxiliary agents, uniformly mixing at high speed, pouring the mixture into a mold, curing and demolding. The performance test results of the organic hard foam thermal insulation material-phenolic aldehyde thermal insulation board processed by the method are shown in table 1.
Comparative example 2
Extruded polystyrene board: 50-90 parts of polystyrene resin, 1-20 parts of additive, 5-30 parts of foaming agent and other auxiliary agents, melting, uniformly extruding, stretching by a compression roller, vacuum forming and cooling. The results of the property measurements of the extruded polystyrene boards processed in this way are shown in Table 1.
TABLE 1 detection results of performance of mineral fiber reinforced environment-friendly building board
It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (9)
1. A mineral fiber reinforced environment-friendly building board is characterized in that: the composite material is prepared from the following raw materials in parts by mass: 8-48 parts of mineral fiber, 5-8 parts of magnesium hydroxide, 1-2 parts of phosphoric acid, 5-6 parts of expanded perlite, 1-3 parts of isocyanate propyl triethoxysilane, 14-25 parts of phenolic resin, 14-25 parts of epoxy resin, 4-6 parts of plasticizer, 6-8 parts of hexamethylenetetramine and 6-8 parts of polyurethane.
2. A mineral fiber reinforced environment-friendly building board is characterized in that: the composite material is prepared from the following raw materials in parts by mass: 24 parts of mineral fiber, 7 parts of magnesium hydroxide, 2 parts of phosphoric acid, 6 parts of expanded perlite, 2 parts of isocyanate propyl triethoxysilane, 20 parts of phenolic resin, 20 parts of epoxy resin, 5 parts of plasticizer, 7 parts of hexamethylenetetramine and 7 parts of polyurethane.
3. The mineral fiber reinforced environment-friendly building board as claimed in claim 1, wherein: the mineral fiber is at least 2 of wollastonite fiber, sepiolite fiber, attapulgite fiber and palygorskite fiber.
4. The mineral fiber reinforced environment-friendly building board as claimed in claim 1, wherein: the diameter of the mineral fiber is 300-500nm, and the length-diameter ratio is (15-50): 1.
5. The method of claim 1The mineral fiber reinforced environment-friendly building board is characterized in that: mg (OH) in the magnesium hydroxide2Mass content of more than 95 percent and granularity D50200-300 nm.
6. The mineral fiber reinforced environment-friendly building board as claimed in claim 1, wherein: the bulk density of the expanded perlite is 100-3。
7. The mineral fiber reinforced environment-friendly building board as claimed in claim 1, wherein: the concentration of the phosphoric acid is 0.5 mol/L.
8. The mineral fiber reinforced environment-friendly building board as claimed in claim 7, wherein: the plasticizer is phthalate ester or aliphatic dibasic acid ester.
9. The mineral fiber reinforced environment-friendly building board as claimed in claim 1, wherein: the preparation method of the mineral fiber reinforced environment-friendly building board comprises the following steps: respectively taking mineral fiber, magnesium hydroxide and phosphoric acid according to parts by weight, grinding and kneading for 30-45min, then adding expanded perlite and isocyanate propyl triethoxysilane, mixing for 10-15min, and heating to 105-; adding phenolic resin and epoxy resin into the heated material, and stirring for 10-20 min; adding plasticizer into the above materials, and stirring for 2-3 min; then adding hexamethylene tetramine and polyurethane into the materials and stirring for 5-8 min; pouring the uniformly stirred materials into a hydraulic press, compacting and leveling, applying 25-35MPa pressure to the materials, carrying out mould pressing for 0.5-2min to obtain a required building board blank, drying, and naturally curing for 5-6h at normal temperature.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345132A1 (en) * | 2014-05-30 | 2015-12-03 | Guang Zhou Zong Bao Xian Wei Zhi Pin Co., Ltd. | Fiber reinforcement fire-proof thermal insulation plate and preparation process thereof |
| CN106083131A (en) * | 2016-06-14 | 2016-11-09 | 安徽华业建工集团有限公司 | A kind of environment protection architecture sheet material and preparation method thereof |
| CN109231938A (en) * | 2018-09-25 | 2019-01-18 | 湖州吴兴锐质自动化输送设备厂（普通合伙） | A kind of heat-insulating heat-preserving material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345132A1 (en) * | 2014-05-30 | 2015-12-03 | Guang Zhou Zong Bao Xian Wei Zhi Pin Co., Ltd. | Fiber reinforcement fire-proof thermal insulation plate and preparation process thereof |
| CN106083131A (en) * | 2016-06-14 | 2016-11-09 | 安徽华业建工集团有限公司 | A kind of environment protection architecture sheet material and preparation method thereof |
| CN109231938A (en) * | 2018-09-25 | 2019-01-18 | 湖州吴兴锐质自动化输送设备厂（普通合伙） | A kind of heat-insulating heat-preserving material and preparation method thereof |
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