CN115536311B - Self-cleaning frequency-adaptive sound-absorbing rock and preparation method thereof - Google Patents

Self-cleaning frequency-adaptive sound-absorbing rock and preparation method thereof Download PDF

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CN115536311B
CN115536311B CN202211182283.7A CN202211182283A CN115536311B CN 115536311 B CN115536311 B CN 115536311B CN 202211182283 A CN202211182283 A CN 202211182283A CN 115536311 B CN115536311 B CN 115536311B
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polymerizer
rock
special
sand
self
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CN115536311A (en
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陈超雷
张誉曦
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Jiangsu Chuangli Jiaowei Technology Co ltd
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Jiangsu Wanpu Transportation 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
    • C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/14—Polyepoxides
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/20—Polyamides
    • 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
    • C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The application discloses self-cleaning frequency-adapting sound-absorbing rock, which comprises a main plate-making material and/or fine sand, basalt ribs, a special polymerizer, wherein the special polymerizer comprises a polymerizer A and a polymerizer B, the polymerizer A comprises bisphenol A type epoxy resin, an active diluent and benzyl alcohol, and further comprises one or a combination of a plurality of talcum powder, phenyl triethoxysilane, a defoaming agent, silicone oil AP100 and silica gel, the polymerizer A and the polymerizer B are mixed to obtain a new special polymerizer, and then a special preparation method is adopted to realize a relatively comprehensive sound-absorbing rock effect.

Description

Self-cleaning frequency-adaptive sound-absorbing rock and preparation method thereof
Technical Field
The application belongs to the technical field of sound-absorbing rock materials, and particularly relates to self-cleaning frequency-adaptive sound-absorbing rock and a preparation method thereof.
Background
Sound insulation barriers, also known as sound insulation walls, are one of the methods for relieving noise, and are the most effective methods for relieving noise such as roads, railways, industrial noise sources and the like, and most of the sound insulation barriers are used in the aspect of roads, and the sound insulation barriers are surrounded outside the ground in the building, so that the noise and dust can be reduced to the noise of pedestrians or nearby.
The patent number CN104986996A discloses a composite fiber polymer reinforced concrete sound barrier and a preparation method thereof. The method utilizes a composite fiber polymer reinforced concrete sound barrier, and the concrete raw materials comprise ceramsite, sand, gel materials, reinforced fibers, a water reducing agent, polymer emulsion and water; the gel material comprises cement, fly ash, silica fume and mineral powder; the reinforcing fibers are steel fibers and/or polypropylene fibers; the polymer emulsion is acrylic ester copolymer emulsion or butenyl ester copolymer emulsion. The internal structural characteristics of the ceramsite are fine honeycomb closed micropores, the ceramsite is used as light coarse aggregate, the volume density is small, the ceramsite is not easy to float upwards during stirring, the ceramsite has certain strength, the whole quality of concrete can be reduced, and meanwhile, the ceramsite is wrapped by a cement mortar matrix in the concrete and isolated from each other, so that the internal interface structure of the concrete is improved, and the impermeability of the concrete can be improved. The polymer emulsion is a cement mortar modifier, and the acrylic ester copolymer emulsion or the butenolide copolymer emulsion is selected and can be directly purchased from commercial products, and the polymer emulsion is added in the formula and then matched with other components, so that the ultimate tensile rate, tensile strength and crack resistance of the product can be improved, the impermeability is increased, and the old concrete is prevented from further carbonization. "
However, according to the disclosure of the document, the concrete sound barrier can only protect a very small part, but cannot integrally improve noise reduction, ultraviolet resistance, combustion performance, acid and alkali resistance, stain resistance, disturbance degree and insertion loss, cannot adapt to a wide sound insulation field, and thus various sound insulation materials appear on the market, but cannot realize comprehensive protection, but cannot integrally improve more conventional general protection at the same time to highlight individual advantages, and cannot achieve better improvement.
Therefore, most of the existing sound barriers achieve a certain effect according to the self materials, so that the universality of functions is limited, the universality of application is limited, the sound insulation effect is poor, the functional characteristics are incomplete, and the performance is unbalanced, so that the specific special sound barrier with comprehensive and better performances in all aspects needs to be solved urgently.
Disclosure of Invention
The application aims to provide self-cleaning frequency-adaptive sound-absorbing rock and a preparation method thereof, which are used for solving the problems of poor effect, incomplete functional characteristics and unbalanced performance of a sound barrier in the prior art which mostly achieve a certain effect according to the self-material.
In order to achieve the above purpose, the present application provides the following technical solutions:
the self-cleaning frequency-adaptive sound-absorbing rock comprises a plate-making main material, fine sand, basalt ribs, and a special polymerizer, wherein the special polymerizer comprises a polymerizer A and a polymerizer B;
the polymerizer A comprises bisphenol A type epoxy resin, reactive diluent and benzyl alcohol, and also comprises one or a combination of more of talcum powder, phenyl triethoxysilane, defoamer, silicone oil AP100 and silica gel;
the polymerizer B comprises polyether amine resin and also comprises one or a combination of more than one of polyamide resin, silane and dispersing agent.
Preferably, the main plate material comprises rock sand and/or quartz sand.
In any of the above schemes, the ratio of the special polymerizer to the main plate-making material is preferably 1:8-12.
In any of the above schemes, the ratio of the special polymerization agent to the main plate-making material is preferably 1:8.
In any of the above schemes, the ratio of the special polymerization agent to the main plate-making material is preferably 1:10.
In any of the above schemes, the ratio of the special polymerization agent to the main plate-making material is preferably 1:12.
In any of the above embodiments, it is preferable that the ratio of the amount of the polymerizer A to the amount of the polymerizer B is 2 to 4:1.
In any of the above embodiments, it is preferable that the ratio of the amount of the polymerizer A to the amount of the polymerizer B is 2:1.
In any of the above embodiments, it is preferable that the ratio of the amount of the polymerizer A to the amount of the polymerizer B is 3:1.
In any of the above embodiments, it is preferable that the ratio of the amount of the polymerizer A to the amount of the polymerizer B is 4:1.
The polymerizer B comprises polyether amine resin, polyamide resin and dispersing agent.
In any of the above schemes, preferably, the bisphenol a type epoxy resin in the polymerizer a accounts for 70% -90%, the reactive diluent accounts for 1% -3%, the benzyl alcohol accounts for 1% -5%, and one or a combination of more than one of talcum powder, phenyl triethoxysilane, defoamer, silicone oil AP100 and silica gel accounts for 2% -28%.
In any of the above schemes, preferably, the polymerization agent A comprises 70 to 90 percent of bisphenol A type epoxy resin, 1 to 3 percent of reactive diluent, 1 to 5 percent of benzyl alcohol and 2 to 28 percent of talcum powder.
In any of the above embodiments, preferably, the polymerization agent a comprises 70% of bisphenol a epoxy resin, 1% of reactive diluent, 1% of benzyl alcohol, and 28% of one or more of talc powder, phenyltriethoxysilane, defoamer, silicone oil AP100 and silica gel.
In any of the above embodiments, it is preferable that the polymerization agent A comprises 70% of bisphenol A type epoxy resin, 2% of reactive diluent, 3% of benzyl alcohol and 25% of talc powder.
In any of the above embodiments, it is preferable that the polymerization agent A comprises 75% of bisphenol A type epoxy resin, 2% of reactive diluent, 3% of benzyl alcohol, and 20% of phenyltriethoxysilane.
In any of the above embodiments, it is preferable that the polymerization agent a comprises 80% of bisphenol a epoxy resin, 1% of reactive diluent, 4% of benzyl alcohol, and 15% of one or a combination of more of talc powder, phenyltriethoxysilane, defoamer, silicone oil AP100 and silica gel.
In any of the above embodiments, it is preferable that the polymerization agent A comprises 80% of bisphenol A type epoxy resin, 1% of reactive diluent, 4% of benzyl alcohol and 15% of defoamer.
In any of the above embodiments, it is preferable that the polymerization agent A comprises 80% of bisphenol A type epoxy resin, 1% of reactive diluent, 4% of benzyl alcohol, and 15% of defoaming agent. .
In any of the above embodiments, preferably, the antifoaming agent may be any of salicylic acid, adipic acid, and phthalic acid.
In any of the above embodiments, it is preferable that the polymerization agent A comprises 80% of bisphenol A type epoxy resin, 1% of reactive diluent, 4% of benzyl alcohol and 15% of talcum powder.
In any of the above embodiments, preferably, the polymerization agent a comprises 90% of bisphenol a epoxy resin, 2% of reactive diluent, 2% of benzyl alcohol, and 6% of one or a combination of more of talc powder, phenyltriethoxysilane, defoamer, silicone oil AP100 and silica gel.
In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B accounts for 35% to 70%, and one or a combination of more than one of the polyamide resin, the silane and the dispersant accounts for 30% to 65%.
In any of the above embodiments, it is preferable that the polymerization agent B includes a polyetheramine resin and further includes a polyamide resin.
In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B accounts for 35% to 70%, and the polyamide resin accounts for 30% to 65%. In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B accounts for 35%, the polyamide resin 63% and the dispersant 2%.
In any of the above embodiments, the polyether amine resin in the polymerization agent B preferably accounts for 45%, the polyamide resin 53% and the dispersant 2%.
In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B accounts for 63%, the polyamide resin accounts for 36% and the dispersant accounts for 1%.
In any of the above embodiments, the polyether amine resin in the polymerizer B preferably accounts for 65%, the polyamide resin 32%, the silane 2.5%, and the dispersant 0.5%.
In any of the above embodiments, the dispersant may be preferably any one of sodium methylenedinaphthyl sulfonate and sodium dinaphthyl methane disulfonate.
In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B accounts for 70%, and one or a combination of more than one of the polyamide resin, the silane and the dispersant accounts for 30%.
In any of the above embodiments, it is preferable that the polyether amine resin in the polymerizer B is 70% and the polyamide resin is 30%.
The application also discloses a preparation method of the self-cleaning frequency-adaptive sound-absorbing rock, which comprises the following steps:
step one: selecting a main material and detecting: selecting rock sand and/or finished quartz sand as main materials of the plate making, detecting the prepared rock sand and/or quartz sand by using a soil moisture content detector, and placing the rock sand and/or quartz sand into stirring equipment after the detection reaches the standard;
step two: prefabrication and mixing of special polymerizer: fully mixing the components of the polymerizer A and the polymerizer B to form a special polymerizer, and then mixing and stirring the special polymerizer and quartz sand and/or rock sand according to a ratio of 1:8-12;
step three: and (3) molding: pouring the mixture obtained in the second step into a mold until the mixture is poured to half the depth of the mold, and scraping and applying exciting force to form a through hole, wherein the porosity is 35-60%, and the thickness is 8-12mm;
step four: and (3) implanting a reinforcement net and basalt ribs: implanting a reinforcement net and basalt ribs after the thickness and the flatness in the third step reach standards;
step five: formation of inner embryo: after the reinforcement net and the basalt reinforcement are implanted in the fourth step, pouring the rest mixture into the mold, and flattening the mixture to a thickness of 16-20mm, and applying the same exciting force as in the third step to form a through hole by matching with vibration so as to achieve uniform porosity and form an inner embryo;
step six: and (5) fine sand wrapping: after the inspection is qualified, removing baffles around the die, and scattering fine sand with 60-80 meshes for wrapping, wherein the fine sand is prepared according to a special polymerization agent: fine sand=1: 8-12, wherein the thickness is 2-5mm, and vibration force is applied to enable rock sand or quartz sand with finer mesh to be embedded into the inner blank manufactured before, so that the surface is fine and attractive, the surface has air permeability, and original pores and through holes are reserved; if the embossed pattern plate is manufactured, pattern pressing is performed at the same time of the step;
step seven: air-drying and demolding: when the flatness and appearance reach the standards, the die is provided with a pressing plate and is horizontally placed for natural airing, and demoulding is carried out;
step eight: and (3) spraying: detecting the product after demolding in the step seven, spraying one or more of fluorocarbon, polyurethane, acrylic acid and polysiloxane finish paint according to the requirement after the detection is met, and sealing and stain-resisting treatment after the finish paint is dried;
step nine: formation of mastoid structures: after spraying in the eighth step, forming a mastoid structure on the surface of the plate, and reaching the actual drying requirement after 8-10 hours.
Preferably, in the second step, the special polymerizer and the quartz sand and/or the rock sand are mixed and stirred according to a ratio of 1:8, and are split-charged by a distributing cylinder for finished product production after being fully stirred in a stirring cylinder for 10 minutes.
Preferably, in the second step, the special polymerizer and the quartz sand and/or the rock sand are mixed and stirred according to a ratio of 1:10, and are split-charged by a distributing cylinder for finished product production after being fully stirred in a stirring cylinder for 10 minutes.
Preferably, in the second step, the special polymerizer and the quartz sand and/or the rock sand are mixed and stirred according to a ratio of 1:12, and are split-charged by a distributing cylinder for finished product production after being fully stirred in a stirring cylinder for 10 minutes. Preferably, in the fourth step, the basalt tendons and the reinforcement net are all finished products existing in the prior art, the number of the basalt tendons is two, and the diameter of the basalt tendons is about 0.5 cm.
Preferably, in the step nine, the diameter of the mastoid structure formed on the surface of the plate is 6-8 micrometers, so that the plate has a self-cleaning function, and the requirement of actual drying can be met after 8-10 hours.
The beneficial effects are that:
1. according to the application, the novel special polymerization agent is obtained by mixing the polymerization agent A and the polymerization agent B, and then a special preparation method is adopted, so that a comprehensive sound-absorbing rock effect can be realized, and compared with the existing sound-absorbing rock or sound barrier which cannot comprehensively achieve all the performances of the application, the sound-absorbing rock prepared by the application has a comprehensive functional structure and balanced performance, and can realize the improvement of performances in multiple parameters, such as noise reduction coefficient NRC of more than or equal to 0.7-0.9, ultraviolet resistance of more than or equal to 99%, combustion performance of A level, acid and alkali resistance of no foaming, no light loss, no color change and insertion loss of more than or equal to 10-20dB (A);
2. the surface of the test piece after weather resistance is detected has no crack, chalking, peeling phenomenon, stain resistance not more than 15I grade, maximum elastic deflection under the action of standard load and the like, is more suitable for the implementation in the sound insulation field, can be suitable for various sound insulation occasions, and has wider application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
The application provides self-cleaning frequency-adaptive sound-absorbing rock, which comprises main materials of a plate, fine sand, basalt ribs, a special polymerizer, wherein the special polymerizer comprises a polymerizer A and a polymerizer B, the mixing ratio of the polymerizer A to the polymerizer B is 3:1, and the self-cleaning frequency-adaptive sound-absorbing rock comprises the main materials 36: fine sand 10: 3.6, a special polymerization agent;
the polymerizer A is selected from bisphenol A epoxy resin, reactive diluent, benzyl alcohol and talcum powder;
the polymerizer B is polyether amine resin and polyamide resin.
And rock sand is selected as the main material of the plate, and the mesh number of rock sand particles is 40.
Bisphenol A type epoxy resin in the polymerizer A accounts for 80 percent, the reactive diluent accounts for 1 percent, the benzyl alcohol accounts for 4 percent and the talcum powder accounts for 15 percent.
The polyether amine resin in the polymerizer B accounts for 70 percent and the polyamide resin accounts for 30 percent.
A preparation method of self-cleaning frequency-adaptive sound-absorbing rock comprises the following specific steps:
step one: selecting main materials and detecting, selecting rock sand as a main board material, detecting the prepared rock sand by using a sandstone soil moisture content detector, wherein the moisture content detection result is that 0.5% is up to the standard, and placing the rock sand into stirring equipment after the detection is up to the standard;
step two: prefabrication and mixing of a special polymerizer, fully mixing a polymerizer A and a polymerizer B to form the special polymerizer, wherein the mixing ratio of the polymerizer A to the polymerizer B is 3:1, then mixing and stirring a special polymerization agent and quartz sand or rock sand at a stirring speed of 700 revolutions per minute, mixing according to a ratio of 1:10, fully stirring in a stirring cylinder for 10 minutes, and sub-packaging by a material distribution cylinder for finished product production;
step three: molding, pouring and strickling, pouring the mixture in the material distributing cylinder in the second step into a mold, wherein the size of the mold is 4:1, strickling and applying exciting force to form a certain porosity and a through hole after the mixture is poured into the mold, wherein the exciting force frequency is 120hz, the porosity is 35%, and if the mixture is a closed hole, the mixture is regarded as unqualified, and the thickness is 10mm;
step four: the reinforcement net and the basalt reinforcement are implanted, when the thickness and the flatness in the third step reach the standards, the reinforcement net and the basalt reinforcement can be implanted, and the basalt reinforcement is made of polymer composite basalt;
step five: forming an inner blank, namely pouring the rest mixture into the inner blank after the reinforcement net and the basalt reinforcement are implanted in the fourth step, and flattening the rest mixture again, wherein the thickness of the rest mixture is 18mm, and the rest mixture is matched with vibration to apply the same exciting force as before to achieve uniform porosity and through holes so as to form the inner blank;
step six: and (3) wrapping the fine sand, removing the baffle plates around the die after the fine sand is qualified, and scattering the fine sand with 70 meshes for wrapping, wherein the fine sand is prepared according to a special polymerization agent: fine sand is 1:8.5, the surface is fine and attractive and has air permeability, and original pores and through holes are reserved, for example, the embossed pattern plate is manufactured and pattern pressing is performed at the same time;
step seven: airing and demoulding, namely naturally airing the mould for 3 hours in a ventilating factory building after the flatness and appearance reach the standards, wherein the intensity can reach 75 percent, and demoulding can be carried out;
step eight: spraying, namely detecting the product obtained after demolding in the step seven, spraying fluorocarbon according to the requirement after the detection is met, and sealing and stain-resistant treatment is carried out after the surface of the paint is dried after the thickness of the paint sprayed is 50 microns;
step nine: after the eighth spraying, forming a mastoid structure of 7 microns on the surface of the plate, so that the plate has a self-cleaning function, the stain resistance effect is achieved, and the actual drying requirement can be achieved after 8 hours.
The self-cleaning frequency-adaptive sound-absorbing rock plate prepared by the preparation method is detected, and the detection result is as follows:
the thickness of the product is 20-80mm; the noise reduction coefficient NRC is more than or equal to 0.7 to 0.9; the weight sound insulation quantity Rw+Ctr is more than or equal to 28dB-40dB; insertion intoThe loss is more than or equal to 10-20dB (A), and the combustion performance meets the A-level requirement; deflection: maximum elastic deflection weather resistance under standard load: referring to JG149-2003 of the external thermal insulation system of the thin plastering of the expanded polystyrene board, after 30 times of heating (50 ℃) and freezing (-20 ℃) circulation, the surface of a test piece has no crack, pulverization and spalling phenomena; impact resistance: impact (TB/T14153-1993) meeting the requirement that the member bear 30 J+ -1J energy, environmental protection (TVOC), mg/m 2 H is less than or equal to 0.15 HJ571, the stain resistance is less than or equal to 15 grade I GB/T9780-2013, the ultraviolet resistance is more than or equal to 99 percent, and the alkali resistance is less than or equal to: i.e. no bubbling, no light loss and no discoloration after being immersed in saturated calcium hydroxide solution for 240 hours. Acid resistance: i.e. no bubbling, no light loss and no discoloration after being immersed in 5% sulfuric acid solution for 168 hours. Artificial aging resistance experiment: the test piece surface has no cracks, pulverization and flaking after 3000 hours aging test of an ultraviolet lamp (UVA-340), and the internal pore of the plate is a through hole GB/T10799-2008.
The results of comparing the performance of the self-cleaning frequency-adaptive sound-absorbing rock board prepared according to the above example 1 with that of the sound-absorbing board on the existing market are shown in table 1:
TABLE 1
Example 2:
a self-cleaning sound-absorbing rock was similar to example 1, except that the composition of the polymerizer A in this example was as shown in Table 2:
TABLE 2
The composition of polymerizer B is shown in table 3:
TABLE 3 Table 3
The data obtained by detecting the special polymerization agent obtained by mixing the above-mentioned polymerization agent a and polymerization agent B in this example are shown in table 4:
TABLE 4 Table 4
Example 3: the self-cleaning frequency-adaptive sound-absorbing rock is similar to the embodiment 1, except that the components of the polymerizer a and the polymerizer B in the special polymerizer in the embodiment are as follows:
the composition of polymerizer A is shown in Table 5:
TABLE 5
The composition of polymerizer B is shown in table 6:
TABLE 6
Polyether amine resin 63%
Polyamide resin 36%
Dispersant 1%
In this example, the data obtained by detecting the special polymerization agent obtained by mixing the above-mentioned polymerization agent a and polymerization agent B are as follows:
TABLE 7
Example 4: the difference from examples 1 and 2 is that the polymerization agent a and the polymerization agent B in the special-purpose polymerization agent in this example are as follows:
the composition of polymerizer A is shown in Table 8:
TABLE 8
The composition of polymerizer B is shown in table 9:
TABLE 9
70% of polyether amine resin
Polyamide resin 30%
In this example, the data obtained by detecting the special polymerization agent obtained by mixing the above-mentioned polymerization agent a and polymerization agent B are as follows:
table 10
Example 5: the self-cleaning frequency-adaptive sound-absorbing rock is different from examples 1, 2, 3 and 4 in that the components of the polymerizer a and the polymerizer B in the special polymerizer in this example are as follows:
the composition of polymerizer A is shown in Table 11:
TABLE 11
The composition of polymerizer B is shown in table 12:
table 12
70% of polyether amine resin
Polyamide resin 30%
In this example, the data obtained by detecting the special polymerization agent obtained by mixing the above-mentioned polymerization agent a and polymerization agent B are as follows:
TABLE 13
Example 6
A self-cleaning frequency-adaptive sound-absorbing rock is similar to example 1, except that bisphenol A type epoxy resin in the polymerizer A accounts for 70%, reactive diluent 1%, benzyl alcohol 4% and talcum powder 25%.
The polyether amine resin in the polymerizer B accounts for 35 percent and the polyamide resin accounts for 65 percent.
Example 7
A self-cleaning frequency-adaptive sound-absorbing rock is similar to example 1, except that bisphenol A type epoxy resin in the polymerizer A accounts for 90%, reactive diluent 3%, benzyl alcohol 1% and talcum powder 6%.
The polyether amine resin in the polymerizer B accounts for 50 percent and the polyamide resin accounts for 50 percent.
The embodiment can realize better weight sound insulation quantity Rw+Ctr is more than or equal to 28dB-40dB; the insertion loss is more than or equal to 10-20dB (A); deflection: maximum elastic deflection weather resistance under standard load;
the above embodiments all obtain a new special polymerization agent by mixing the polymerization agent A and the polymerization agent B, and then a more comprehensive sound-absorbing rock effect can be realized by a special preparation method, and compared with embodiment 1, embodiment two, three, four and five have more balanced parameters and better effects, and specific performance parameters are as above, and compared with the existing sound-absorbing rock or sound barrier, the sound-absorbing rock or sound barrier can not comprehensively achieve the performances of the application, and the embodiment 1 has more comprehensive functional structure and more balanced performance and is more suitable for implementation in the sound-insulating field. Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.

Claims (3)

1. The utility model provides a self-cleaning suitable frequency sound rock of inhaling which characterized in that: consists of rock sand, basalt tendons and special polymerizers; the special polymerizer is prepared by mixing a polymerizer A and a polymerizer B in a ratio of 3:1-2; the polymerizer A consists of 80% of bisphenol A type epoxy resin, 1% of reactive diluent, 4% of benzyl alcohol and 15% of talcum powder; the polymerizer B consists of 70% polyether amine resin and 30% polyamide resin; the mesh number of the rock sand is 30-50 mesh, and the special polymerization agent and the rock sand are mixed according to the proportion of 1:8-12.
2. A self-cleaning frequency-adaptive sound-absorbing rock according to claim 1, characterized in that: the self-cleaning frequency-adaptive sound-absorbing rock is further wrapped with fine sand, and the fine sand is prepared from a special polymerization agent: 60-80 mesh rock sand=1:8-12 ratio modulation.
3. The method for preparing the self-cleaning adaptive frequency sound-absorbing rock according to claim 2, comprising the following steps:
step one: selecting a main material and detecting: selecting 30-50 mesh rock sand as a main board material, detecting the prepared rock sand by using a soil moisture content detector, and placing the rock sand into stirring equipment after the detection reaches the standard;
step two: prefabrication and mixing of special polymerizer: fully mixing the two components of the polymerizer A and the polymerizer B to form a special polymerizer, and then mixing and stirring the special polymerizer and the rock sand according to the ratio of 1:8-12;
step three: and (3) molding: pouring the mixture obtained in the second step into a mold until the mixture is poured to half the depth of the mold, and then scraping off the mixture to apply exciting force to form a through hole, wherein the porosity is 35% -60%, and the thickness is 8-12mm;
step four: and (3) implanting a reinforcement net and basalt ribs: implanting a reinforcement net and basalt ribs after the thickness and the flatness in the third step reach standards;
step five: formation of inner embryo: after the reinforcement net and the basalt reinforcement are implanted in the fourth step, pouring the rest mixture into the mold, and uniformly scraping the mixture until the thickness is 16-20mm, and applying the same exciting force as in the third step to form a through hole by matching with vibration so as to achieve uniform porosity and form an inner embryo;
step six: and (5) fine sand wrapping: after the mold is inspected to be qualified, removing the baffle plates around the mold, and scattering fine sand for wrapping, wherein the fine sand is prepared by a special polymerization agent: 60-80 mesh rock sand = 1:8-12, wherein the thickness is 2-5mm, and vibration force is applied to embed rock sand with finer mesh into the inner embryo prepared before;
step seven: air-drying and demolding: when the flatness and appearance reach the standards, the die is provided with a pressing plate and is horizontally placed for natural airing, and demoulding is carried out;
step eight: and (3) spraying: detecting the product after demolding in the step seven, spraying one or more of fluorocarbon, polyurethane, acrylic acid and polysiloxane finish paint according to the requirement after the detection is met, and sealing and stain-resisting treatment after the finish paint is dried;
step nine: formation of mastoid structures: and (3) forming a mastoid structure on the surface of the plate after spraying in the step eight, and achieving the actual drying requirement after 8-10 hours.
CN202211182283.7A 2022-09-27 2022-09-27 Self-cleaning frequency-adaptive sound-absorbing rock and preparation method thereof Active CN115536311B (en)

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