CN110627430A - Building floor surface heat-preservation, heat-insulation and sound-insulation material and preparation method thereof - Google Patents

Building floor surface heat-preservation, heat-insulation and sound-insulation material and preparation method thereof Download PDF

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CN110627430A
CN110627430A CN201910807737.7A CN201910807737A CN110627430A CN 110627430 A CN110627430 A CN 110627430A CN 201910807737 A CN201910807737 A CN 201910807737A CN 110627430 A CN110627430 A CN 110627430A
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parts
stirring
building floor
sound
aerogel
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贡志刚
胡宗斌
蒋宗浩
蒋字平
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Anhui Tianjinyun Energy Saving And Waterproof Technology Co Ltd
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Anhui Tianjinyun Energy Saving And Waterproof Technology Co Ltd
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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
    • 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
    • C04B14/06—Quartz; Sand
    • C04B14/064—Silica aerogel
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/023—Chemical treatment
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Floor Finish (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a heat-insulating and sound-insulating material for building floor surfaces and a preparation method thereof, and relates to the technology of energy-saving and sound-insulating building materialsThe method comprises the following raw materials: 10-50 parts of Portland cement, 10-30 parts of diatom ooze, 1-15 parts of polyphenyl granules and SiO21-30 parts of aerogel, 1-30 parts of glass hollow microspheres, 2-15 parts of ceramsite, 5-30 parts of VAE rubber powder, 1-10 parts of cellulose, 1-10 parts of air entraining agent and 1-15 parts of anti-crack fibers. The invention has the advantages of easily obtained raw materials, small water absorption performance, difficult deformation, good heat preservation, heat insulation, water resistance, fire prevention and crack resistance effects, good sound absorption and sound insulation effects, and capability of attenuating the transmission sound energy to 10 of the incident sound energy‑3～10‑3Is twice or less, and is green and environment-friendly.

Description

Building floor surface heat-preservation, heat-insulation and sound-insulation material and preparation method thereof
Technical Field
The invention relates to the technical field of energy-saving sound-insulation building materials, in particular to a building floor heat-insulation sound-insulation material and a preparation method thereof.
Background
Along with the higher and higher requirements of people on the comfort level of the living environment, the heating and refrigerating devices are more and more popularized, and the energy conservation of buildings is increasingly concerned by people. The use of heat-insulating building materials can improve the heat-insulating performance of buildings, but the heat-insulating performance of the traditional building heat-insulating materials is general, and the performance of the traditional building heat-insulating materials needs to be further improved. In addition, because near present building traffic facility, the vehicle is through comparatively frequently, people also comparatively pay close attention to how to give sound insulation, and among the prior art acoustic material is the soundproof cotton material that directly adopts mostly, but soundproof cotton material's use can't satisfy thermal-insulated, heat preservation, dampproofing and syllable-dividing many-sided performance, consequently, the problem that we will solve at present is to develop a building material that has good thermal-insulated syllable-dividing effect of heat preservation simultaneously.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a building floor surface heat-insulating sound-insulating material and a preparation method thereof.
The invention provides a building floor surface heat-insulation sound-insulation material which comprises the following raw materials: 10-50 parts of Portland cement, 10-30 parts of diatom ooze, 1-15 parts of polyphenyl granules and SiO21-30 parts of aerogel, 1-30 parts of glass hollow microspheres, 2-15 parts of ceramsite, 5-30 parts of VAE rubber powder, 1-10 parts of cellulose, 1-10 parts of air entraining agent and 1-15 parts of anti-crack fibers.
Preferably, the SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding ethyl orthosilicate and absolute ethyl alcohol intoStirring in a container, adding deionized water, adjusting the pH value to 3-4 by using a hydrochloric acid solution, stirring for hydrolysis reaction, adding titanium tetrachloride and tween 80, adjusting the pH value to 4-5 by using dilute ammonia water, stirring for reaction, adjusting the pH value to 6-7 by using the dilute ammonia water, adding chopped basalt fibers, stirring for polycondensation reaction, pouring into the container, standing still, sealing to gelatinize, aging, adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, soaking, taking out, and cleaning by using the n-hexane to obtain the nano-silver modified carbon dioxide gel.
Preferably, the modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 13-17 parts of absolute ethyl alcohol into a container, stirring, then adding 1.5-2.2 parts of deionized water, adjusting the pH to 3-4 by using a 10% hydrochloric acid solution, stirring for carrying out a hydrolysis reaction for 3-5h, then adding 0.06-0.12 part of titanium tetrachloride and 0.002-0.005 part of Tween 80, adjusting the pH to 4-5 by using 10% diluted ammonia water, stirring for reacting for 2-3h, adjusting the pH to 6-7 by using 10% diluted ammonia water, adding 0.01-0.02 part of basalt fiber, stirring for carrying out a polycondensation reaction for 40-60min, then pouring into the container for standing and sealing to gelatinize, aging for 1-2 days at room temperature, aging for 20-26h by using absolute ethyl alcohol, and then adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the absolute ethyl alcohol, The weight ratio of alkoxy siloxane to n-hexane is 1: 5-7: 17-20, soaking for 3-5h, and then cleaning with n-hexane for 2-3 times to obtain the product.
Preferably, the alkoxy polysiloxane is dow corning 3074.
Preferably, the polyphenyl particles have a bulk density of 12 to 20kg/m3The average particle size is 2-4 mm.
Preferably, the glass hollow microspheres are 90-120kg/m3The average grain diameter is 40-60 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k).
Preferably, the cellulose is one or more of hydroxyethyl cellulose, hydroxyethyl methyl cellulose and hydroxypropyl methyl cellulose.
Preferably, the anti-crack fibers are formed by polypropylene fibers and basalt fibers according to the weight ratio of 2-3: 3-4 weight ratio.
Preferably, the air entraining agent is a triterpenoid saponin air entraining agent or a sodium dodecyl benzene sulfonate air entraining agent or a combination thereof.
The invention also provides a preparation method of the building floor heat-insulating sound-insulating material, which comprises the following steps: adding cement, diatom ooze, polyphenyl granules, aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the anti-crack mortar.
Has the advantages that: the invention provides a building floor surface heat-insulating sound-insulating material which has the advantages of easily obtained raw materials, small water absorption performance, difficult deformation, good heat-insulating, waterproof and fireproof effects and good sound-absorbing and sound-insulating effects, and can attenuate transmitted sound energy to 10 of incident sound energy-3～10-3Is twice or less, and is green and environment-friendly. The SiO2 aerogel in the raw materials has the characteristics of light weight and small heat conductivity coefficient, the addition of the aerogel can improve the heat insulation effect of the material, the material is modified, the pH value of the system is adjusted in the sol preparation process, and titanium tetrachloride is added to hydrolyze the material to generate TiO2Nano particles, adding Tween 80, and uniformly dispersing in SiO2In the sol, the uniformly doped SiO is obtained by polycondensation2The thermal insulation performance of the material is further improved, the fiber-reinforced aerogel is obtained by adding the chopped basalt fibers in the polycondensation process, the sound insulation effect of the material is improved while the strength is improved, and finally the hydrophobicity of the aerogel is improved by performing hydrophobic modification on alkoxy polysiloxane, so that the toughness of the aerogel is further improved, and the phenomenon that the aerogel absorbs moisture in the air to cause hole shrinkage and gel skeleton collapse is avoided; the composite material is matched with added ceramsite and hollow glass beads, has good heat-insulation and sound-insulation effects, is added with EVA rubber powder, cellulose and an air entraining agent, generates a large number of fine pores, and can play a good role in heat insulation, heat preservation, sound absorption and sound insulation; the seaweed mud is soft and porous, and after being used in a matching way, the seaweed mud can effectively absorb shock and sound and has better effect; in addition, the anti-crack fibers are matched, so that the generation and the development of cracks can be effectively prevented.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The invention provides a building floor surface heat-insulation sound-insulation material which comprises the following raw materials: 10 parts of Portland cement, 30 parts of diatom ooze, 1 part of polyphenyl granules and SiO230 parts of aerogel, 30 parts of glass hollow microspheres, 2 parts of ceramsite, 5 parts of VAE rubber powder, 1 part of cellulose, 10 parts of air entraining agent and 15 parts of anti-crack fibers;
wherein, SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 13 parts of absolute ethyl alcohol into a container, stirring, then adding 1.5 parts of deionized water, regulating the pH value to 3 by using a 10% hydrochloric acid solution, stirring to perform hydrolysis reaction for 3 hours, then adding 0.06 part of titanium tetrachloride and 0.002 part of Tween 80, regulating the pH value to 4 by using 10% dilute ammonia water, stirring to perform reaction for 2 hours, regulating the pH value to 6 by using 10% dilute ammonia water, adding 0.01 part of chopped basalt fiber, stirring to perform polycondensation reaction for 40 minutes, then pouring into the container, standing, sealing to perform gelation, aging for 1 day at room temperature, aging for 20 hours by using absolute ethyl alcohol, and then adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the weight ratio of the absolute ethyl alcohol, Dow Corning 3074 alkoxy siloxane and the n-hexane is 1: 5: 20, soaking for 3 hours, and then cleaning for 2 times by using normal hexane to obtain the product;
wherein the polystyrene particles have a bulk density of 12kg/m3The average grain diameter is 2 mm; 90kg/m of glass hollow micro-beads3The average grain diameter is 40 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxyethyl cellulose; the anti-crack fibers are prepared from polypropylene fibers and basalt fibers according to the weight ratio of 3: 3 in a weight ratio; the air entraining agent is sodium dodecyl benzene sulfonate.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow micro-beads and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibersAnd (5) maintaining, and uniformly mixing to obtain the vitamin A-vitamin D-vitamin C.
Example 2
The invention provides a building floor surface heat-insulation sound-insulation material which comprises the following raw materials: 50 parts of Portland cement, 10 parts of diatom ooze, 15 parts of polyphenyl granules and SiO21 part of aerogel, 1 part of glass hollow microspheres, 15 parts of ceramsite, 30 parts of VAE rubber powder, 10 parts of cellulose, 1 part of air entraining agent and 1 part of anti-crack fibers;
wherein, SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 17 parts of absolute ethyl alcohol into a container, stirring, adding 2.2 parts of deionized water, regulating the pH value to 4 by using a 10% hydrochloric acid solution, stirring for hydrolysis reaction for 5 hours, adding 0.12 part of titanium tetrachloride and 0.005 part of Tween 80, regulating the pH value to 5 by using 10% dilute ammonia water, stirring for reaction for 3 hours, regulating the pH value to 7 by using 10% dilute ammonia water, adding 0.02 part of chopped basalt fiber, stirring for polycondensation reaction for 60 minutes, pouring into the container, standing, sealing, gelatinizing, aging for 2 days at room temperature, aging for 26 hours by using absolute ethyl alcohol, and adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the weight ratio of the absolute ethyl alcohol, Dow Corning 3074 alkoxy siloxane and the n-hexane is 1: 7: 17, soaking for 5 hours, and then cleaning for 3 times by using normal hexane to obtain the product;
wherein the polystyrene particles have a bulk density of 20kg/m3The average grain diameter is 4 mm; 120kg/m of glass hollow micro-beads3The average grain diameter is 60 mu m, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxyethyl cellulose, hydroxyethyl methyl cellulose according to the weight ratio of 1: 1 in a weight ratio; the anti-crack fiber is prepared from polypropylene fiber and basalt fiber according to the weight ratio of 2: 4 in a weight ratio; the air entraining agent is triterpenoid saponin air entraining agent.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the composite material.
Example 3
The invention provides a building floor surface heat-insulation sound-insulation material which comprises the following raw materials: 28 parts of Portland cement, 20 parts of diatom ooze, 5 parts of polyphenyl granules and SiO220 parts of aerogel, 15 parts of glass hollow microspheres, 10 parts of ceramsite, 15 parts of VAE rubber powder, 4 parts of cellulose, 3 parts of air entraining agent and 8 parts of anti-crack fibers;
wherein, SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 14 parts of absolute ethyl alcohol into a container, stirring, then adding 1.8 parts of deionized water, adjusting the pH to 3.5 by using a 10% hydrochloric acid solution, stirring for carrying out hydrolysis reaction for 3.5 hours, then adding 0.08 part of titanium tetrachloride and 0.003 part of Tween 80, adjusting the pH to 4.5 by using 10% dilute ammonia water, stirring for reacting for 2.5 hours, then adjusting the pH to 6.5 by using 10% dilute ammonia water, adding 0.014 part of short basalt fiber, stirring for carrying out polycondensation reaction for 45min, then pouring into the container, standing and sealing to gelatinize the mixture, aging the mixture at room temperature for 36 hours, aging the mixture for 22 hours by using the absolute ethyl alcohol, and then adding the mixture of the absolute ethyl alcohol, Dow Corning 3074 alkoxy siloxane and n-hexane in a weight ratio of 1: 6: 18, soaking for 3.5 hours, and then cleaning for 3 times by using normal hexane to obtain the product;
wherein the polystyrene particles have a bulk density of 15kg/m3The average grain diameter is 3 mm; 100kg/m of glass hollow micro-beads3The average grain diameter is 45 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxyethyl methyl cellulose; the anti-crack fibers are formed by polypropylene fibers and basalt fibers according to the weight ratio of 2.5: 3.5 in weight ratio; the air entraining agent is triterpenoid saponin air entraining agent.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the composite material.
Example 4
The invention provides a building floor slabThe surface heat-insulating sound-insulating material comprises the following raw materials: 35 parts of Portland cement, 15 parts of diatom ooze, 10 parts of polyphenyl granules and SiO210 parts of aerogel, 20 parts of glass hollow microspheres, 7 parts of ceramsite, 10 parts of VAE rubber powder, 5 parts of cellulose, 4 parts of air entraining agent and 12 parts of anti-crack fibers;
wherein, SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 15 parts of absolute ethyl alcohol into a container, stirring, adding 2 parts of deionized water, adjusting the pH value to 3.5 by using a 10% hydrochloric acid solution, stirring for hydrolysis reaction for 4.5 hours, adding 0.1 part of titanium tetrachloride and 0.004 part of Tween 80, adjusting the pH value to 5 by using 10% dilute ammonia water, stirring for reaction for 2.5 hours, adjusting the pH value to 7 by using 10% dilute ammonia water, adding 0.018 part of short-cut basalt fiber, stirring for polycondensation reaction for 55min, pouring into the container, standing and sealing to gelatinize the mixture, aging for 42 hours at room temperature by using absolute ethyl alcohol, aging for 24 hours by using absolute ethyl alcohol, and then adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the weight ratio of the absolute ethyl alcohol, the Dow Corning 3074 alkoxy siloxane to the n-hexane is 1: 6.5: 19, soaking for 4.5 hours, and then cleaning for 3 times by using normal hexane to obtain the product;
wherein the polystyrene particles have a bulk density of 17kg/m3The average grain diameter is 3.5 mm; 110kg/m of glass hollow micro-beads3The average grain diameter is 50 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxypropyl methylcellulose; the anti-crack fiber is prepared from polypropylene fiber and basalt fiber according to the weight ratio of 2: 3 in a weight ratio; the air entraining agent is a triterpenoid saponin air entraining agent and a sodium dodecyl benzene sulfonate air entraining agent which are mixed according to the weight ratio of 1: 1 by weight ratio.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the composite material.
Example 5
The invention provides a building floor surface heat-insulating sound-insulating boardThe material comprises the following raw materials: 35 parts of Portland cement, 15 parts of diatom ooze, 10 parts of polyphenyl granules and SiO210 parts of aerogel, 20 parts of glass hollow microspheres, 7 parts of ceramsite, 10 parts of VAE rubber powder, 5 parts of cellulose, 4 parts of air entraining agent and 12 parts of anti-crack fibers;
wherein, SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 14 parts of absolute ethyl alcohol into a container, stirring, then adding 1.8 parts of deionized water, adjusting the pH to 3.5 by using a 10% hydrochloric acid solution, stirring to perform hydrolysis reaction for 6 hours, adjusting the pH to 6.5 by using 10% diluted ammonia water, stirring to perform polycondensation reaction for 45 minutes, then pouring into the container, standing and sealing to perform gelation, aging for 36 hours at room temperature, aging for 22 hours by using absolute ethyl alcohol, and then cleaning for 3 times by using n-hexane to obtain the product.
Wherein the polystyrene particles have a bulk density of 15kg/m3The average grain diameter is 3 mm; 100kg/m of glass hollow micro-beads3The average grain diameter is 45 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxyethyl methyl cellulose; the anti-crack fibers are formed by polypropylene fibers and basalt fibers according to the weight ratio of 2.5: 3.5 in weight ratio; the air entraining agent is triterpenoid saponin air entraining agent.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the composite material.
Example 4
The invention provides a building floor surface heat-insulation sound-insulation material which comprises the following raw materials: 35 parts of Portland cement, 15 parts of diatom ooze, 10 parts of polyphenyl granules and SiO210 parts of aerogel, 20 parts of glass hollow microspheres, 7 parts of ceramsite, 10 parts of VAE rubber powder, 5 parts of cellulose, 4 parts of air entraining agent and 12 parts of anti-crack fibers;
wherein, SiO2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 15 parts of absolute ethyl alcohol into a container, stirring, and then adding 2 parts of deionized waterAdjusting the pH value to 3.5 by using a 10% hydrochloric acid solution, stirring for hydrolysis reaction for 4.5h, then adding 0.1 part of titanium tetrachloride and 0.004 part of Tween 80, adjusting the pH value to 5 by using 10% diluted ammonia water, stirring for reaction for 2.5h, adjusting the pH value to 7 by using 10% diluted ammonia water, adding 0.018 part of short basalt fiber, stirring for polycondensation reaction for 55min, then pouring the mixture into a container, standing and sealing the container to gelatinize the mixture, aging the mixture for 42h at room temperature, aging the mixture for 24h by using absolute ethyl alcohol, and then adding the aged mixture into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the weight ratio of the absolute ethyl alcohol, Dow Corning 3074 alkoxy siloxane and the n-hexane is 1: 6.5: 19, soaking for 4.5 hours, and then cleaning for 3 times by using normal hexane to obtain the product;
wherein the polystyrene particles have a bulk density of 17kg/m3The average grain diameter is 3.5 mm; 110kg/m of glass hollow micro-beads3The average grain diameter is 50 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k); the cellulose is hydroxypropyl methylcellulose; the anti-crack fiber is prepared from polypropylene fiber and basalt fiber according to the weight ratio of 2: 3 in a weight ratio; the air entraining agent is a triterpenoid saponin air entraining agent and a sodium dodecyl benzene sulfonate air entraining agent which are mixed according to the weight ratio of 1: 1 by weight ratio.
The preparation method of the building floor heat-insulating sound-insulating material comprises the following steps: mixing cement, diatom ooze, polyphenyl granules and SiO2Adding aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the composite material.
For the modified hydrophobic SiO prepared in examples 1 to 4 of the invention2Aerogel and SiO prepared as in example 52The properties of the aerogel, such as contact angle, density, water absorption and compressive strength, were tested, and the thermal conductivity of the building floor surface thermal and acoustic insulation materials of examples 1 to 5 was also tested, and the results are shown in table 1.
TABLE 1 SiO in examples 1-52Aerogel and performance data of building floor surface heat-insulation sound-insulation material
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The building floor surface heat-insulating sound-insulating material is characterized by comprising the following raw materials: 10-50 parts of Portland cement, 10-30 parts of diatom ooze, 1-15 parts of polyphenyl granules and SiO21-30 parts of aerogel, 1-30 parts of glass hollow microspheres, 2-15 parts of ceramsite, 5-30 parts of VAE rubber powder, 1-10 parts of cellulose, 1-10 parts of air entraining agent and 1-15 parts of anti-crack fibers.
2. The building floor surface thermal and acoustic insulation material as claimed in claim 1, wherein the SiO is2The aerogel is modified hydrophobic SiO2The preparation process of the aerogel comprises the following steps: adding tetraethoxysilane and absolute ethyl alcohol into a container, stirring, adding deionized water, regulating the pH value to 3-4 by using a hydrochloric acid solution, stirring for hydrolysis reaction, adding titanium tetrachloride and tween 80, regulating the pH value to 4-5 by using dilute ammonia water, stirring for reaction, regulating the pH value to 6-7 by using the dilute ammonia water, adding short basalt fiber, stirring for polycondensation reaction, pouring into the container, standing still, sealing for gelation, aging and aging, adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, soaking, taking out, and washing by using n-hexane to obtain the water-based polyurethane adhesive.
3. The building floor surface thermal and acoustic insulation material as claimed in claim 2, wherein the modified hydrophobic SiO is2The preparation process of the aerogel comprises the following steps: adding 10 parts of ethyl orthosilicate and 13-17 parts of absolute ethyl alcohol into a container, stirring, then adding 1.5-2.2 parts of deionized water, adjusting the pH to 3-4 by using 10% hydrochloric acid solution, stirring for carrying out hydrolysis reaction for 3-5h, then adding 0.06-0.12 part of titanium tetrachloride and 0.002-0.005 part of Tween 80,adjusting the pH value to 4-5 with 10% dilute ammonia water, stirring for 2-3h, adjusting the pH value to 6-7 with 10% dilute ammonia water, adding 0.01-0.02 part of chopped basalt fiber, stirring for polycondensation for 40-60min, pouring into a container, standing still, sealing for gelation, aging for 1-2 days at room temperature, aging for 20-26h with absolute ethyl alcohol, and adding into a mixed solution of absolute ethyl alcohol/alkoxy polysiloxane/n-hexane, wherein the weight ratio of absolute ethyl alcohol, alkoxy siloxane and n-hexane is 1: 5-7: 17-20, soaking for 3-5h, and then cleaning with n-hexane for 2-3 times to obtain the product.
4. The building deck surface thermal and acoustic insulation material according to claim 2 or 3, wherein the alkoxy polysiloxane is Dow Corning 3074.
5. The building floor thermal and acoustic insulation material according to any of claims 1 to 4, wherein the polyphenyl particles have a bulk density of 12 to 20kg/m3The average particle size is 2-4 mm.
6. The building floor surface thermal and acoustic insulation material as claimed in any one of claims 1 to 5, wherein the glass cenospheres are 90 to 120kg/m3The average grain diameter is 40-60 μm, and the heat conductivity coefficient is less than or equal to 0.045W/(m.k).
7. The building floor surface thermal and acoustic insulation material according to any one of claims 1 to 6, wherein the cellulose is one or more of hydroxyethyl cellulose, hydroxyethyl methyl cellulose, and hydroxypropyl methyl cellulose.
8. The building deck surface thermal and acoustic insulation material as claimed in any one of claims 1 to 7, wherein the crack resistant fibers are formed from polypropylene fibers and basalt fibers in a ratio of 2 to 3: 3-4 weight ratio.
9. The building floor surface thermal and acoustic insulation material according to any one of claims 1 to 8, wherein the air-entraining agent is a triterpenoid saponin air-entraining agent or sodium dodecyl benzene sulfonate air-entraining agent or a combination thereof.
10. A method for preparing a building floor surface thermal and acoustic insulation material according to any one of claims 1 to 9, comprising the steps of: adding cement, diatom ooze, polyphenyl granules, aerogel, glass hollow microspheres and ceramsite into a stirrer, uniformly dispersing, adding VAE rubber powder and cellulose, stirring and dispersing, adding an air entraining agent and anti-crack fibers, and uniformly mixing to obtain the anti-crack mortar.
CN201910807737.7A 2019-08-29 2019-08-29 Building floor surface heat-preservation, heat-insulation and sound-insulation material and preparation method thereof Pending CN110627430A (en)

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Application publication date: 20191231