CN116463013A - High-elasticity sound insulation coating for floor and preparation method thereof - Google Patents
High-elasticity sound insulation coating for floor and preparation method thereof Download PDFInfo
- Publication number
- CN116463013A CN116463013A CN202310338193.0A CN202310338193A CN116463013A CN 116463013 A CN116463013 A CN 116463013A CN 202310338193 A CN202310338193 A CN 202310338193A CN 116463013 A CN116463013 A CN 116463013A
- Authority
- CN
- China
- Prior art keywords
- filler
- emulsion
- parts
- styrene
- sound insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 64
- 239000011248 coating agent Substances 0.000 title claims abstract description 61
- 238000009413 insulation Methods 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 134
- 239000000839 emulsion Substances 0.000 claims abstract description 79
- 229920002635 polyurethane Polymers 0.000 claims abstract description 38
- 239000004814 polyurethane Substances 0.000 claims abstract description 38
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 8
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 6
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 30
- 238000013016 damping Methods 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 16
- 239000002562 thickening agent Substances 0.000 claims description 15
- 239000011325 microbead Substances 0.000 claims description 14
- 239000000178 monomer Substances 0.000 claims description 14
- 230000000844 anti-bacterial effect Effects 0.000 claims description 13
- 239000003899 bactericide agent Substances 0.000 claims description 13
- 238000005187 foaming Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000013530 defoamer Substances 0.000 claims description 8
- 239000010451 perlite Substances 0.000 claims description 8
- 235000019362 perlite Nutrition 0.000 claims description 8
- 239000010455 vermiculite Substances 0.000 claims description 8
- 229910052902 vermiculite Inorganic materials 0.000 claims description 8
- 235000019354 vermiculite Nutrition 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- -1 acrylic ester Chemical class 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 26
- 230000000052 comparative effect Effects 0.000 description 24
- 230000000694 effects Effects 0.000 description 23
- 230000006872 improvement Effects 0.000 description 11
- 230000005489 elastic deformation Effects 0.000 description 9
- 239000010445 mica Substances 0.000 description 8
- 229910052618 mica group Inorganic materials 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a high-elasticity sound insulation coating for a floor slab, which comprises 100-200 parts of styrene-acrylic emulsion; 100-200 parts of polyurethane emulsion; 40-100 parts of a first filler; 80-200 parts of a second filler; 40-100 parts of a third filler; 1.5-3 parts of hydroxyethyl cellulose; 2-5 parts of dispersing agent; 4-13 parts of an additive; 100-200 parts of a solvent; the first filler is hollow rigid filler, the second filler is solid filler, and the third filler is hollow elastic filler. The invention also discloses a preparation method of the paint. The invention solves the technical problem of insufficient sound insulation performance of the traditional sound insulation coating, can obtain good sound insulation performance, and has wide application prospect in the field of sound insulation coatings for floors.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a high-elasticity sound insulation coating for a floor slab and a preparation method thereof.
Background
Along with the development of green building concepts, people pay more and more attention to building sound insulation. The floor slab of the existing blank house basically does not meet the requirements of green buildings, and even the decorated house adopting the conventional wood floor method is difficult to meet the requirements of impact sound insulation of the floor slab. The thickness of the floor slab of the civil building is generally 100-120mm, the standard weighting standard impact sound pressure level is generally 79-84dB, and the requirements of the green building on the sound insulation performance of the floor slab cannot be met. In order to meet the requirements of GB/T50118, a sound insulation layer is required to be additionally arranged on the floor slab so as to improve the sound insulation performance of the floor slab.
The common mode of the separate floor impact sound insulation treatment is to lay sound insulation mortar, sound insulation pad, sound insulation board and sound insulation paint between the floor and the ceramic tile decoration surface layer. The sound insulation coating is used between the concrete floor slab and the ceramic tile decoration surface layer, and the ceramic tile surface layer and the sound insulation coating elastic cushion layer form an elastic resonance system. The sound insulation amount deltal of the elastic resonance system can be analyzed by the resonance frequency f0 pair.
ΔL≈40lg(f/f 0 )f＞＞f 0
Wherein: Δl—floor impact sound improvement amount, dB;
f-noise frequency, hz;
f 0 -the elastic system resonance frequency, hz, of the cover and the cushion.
f 0 ＝(1/2π)*(2E/md) 1/2
Wherein: elastic modulus of E-coating layer Kg/cm 2 ；
d, the thickness of the coating layer is cm;
surface density of m-facing material Kg/cm 2 。
Through the analysis of the formula, the sound insulation performance of the paint is related to the elasticity, thickness and surface density of the paint layer. The sound insulation coating is a thick coating. In order to prevent the paint from solidifying and cracking and meet the technological requirements, the existing paint adopts a large amount of fillers such as heavy calcium powder, barite powder, mica powder, fibers and the like, particularly the fillers such as mica powder, fibers and the like, so that the elasticity of the paint can be obviously reduced, the paint always has the problem of insufficient sound insulation performance, the impact sound improvement amount of the existing paint is only 8-15dB, and the user experience is affected.
Disclosure of Invention
The invention aims to overcome the defects, and provides the high-elasticity sound-insulating coating for the floor and the preparation method thereof, which solve the technical problem of insufficient sound-insulating performance of the traditional sound-insulating coating.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a high-elasticity sound insulation coating for floor slabs comprises the following components in parts by weight:
the first filler is hollow rigid filler, the second filler is solid damping filler, and the third filler is hollow elastic filler;
the additives include defoamers, thickeners and bactericides.
Further, the first filler comprises more than one of hollow perlite, expanded vermiculite or floating beads;
the second filler comprises more than one of butyronitrile rubber powder, silica gel powder, polyurethane powder, natural rubber powder or cis-butadiene rubber powder;
the third filler comprises more than one of polyvinylidene chloride foaming microbeads, acrylonitrile foaming microbeads or acrylic ester foaming microbeads.
Further, the ratio of the mass of the first filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.1-0.25:1;
the ratio of the mass of the second filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.2-0.5:1;
the ratio of the mass of the third filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.1-0.5:1.
Further, the mass ratio of the third filler to the second filler is 0.15-0.4:1.
Further, the solid content of the styrene-acrylic emulsion is 45% -55%;
the solid content of the polyurethane emulsion is 45% -55%;
the weight ratio of the styrene-acrylic emulsion to the polyurethane emulsion is 1-2:1;
in the styrene-acrylic emulsion, the mass ratio of the soft monomer to the hard monomer is 20:4-20:7;
in the polyurethane emulsion, the mass ratio of the soft monomer to the hard monomer is 20:3-20:5.
Further, the additive comprises 2-5 parts of defoamer, 1-5 parts of thickener and 1-3 parts of bactericide;
the defoamer comprises sodium polyacrylate or mineral oil;
the thickener comprises polyurethane;
the bactericide comprises a kathon preservative.
Further, the solvent is deionized water.
Further, the particle size of the first filler is 80-250 μm;
the particle size of the second filler is 100-180 mu m;
the particle size of the third filler is 30-50 μm.
The preparation method of the high-elasticity sound insulation coating for the floor slab comprises the following steps:
adding hydroxyethyl cellulose, a first part of dispersing agent, a first part of defoaming agent and a first filler into a solvent, and stirring to obtain a first dispersion liquid;
adding styrene-acrylic emulsion and polyurethane emulsion into the first dispersion liquid, and stirring to obtain a second dispersion liquid;
adding a second part of dispersing agent, a second part of defoaming agent, bactericide and second filler into the second dispersion liquid, and stirring to obtain a third dispersion liquid;
adding a third filler into the third dispersion liquid, and stirring to obtain a fourth dispersion liquid;
and adding a thickening agent into the fourth dispersion liquid to enable the viscosity of the dispersion liquid to reach a preset viscosity.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, polyurethane emulsion and styrene-acrylic emulsion are used as film forming substances, and the elasticity of the coating is improved by utilizing the characteristic of good flexibility of the polyurethane emulsion so as to play a role in sound insulation; the static bearing capacity of the coating is improved by using harder styrene-acrylic emulsion. According to the invention, through blending modification of polyurethane emulsion and styrene-acrylic emulsion, the sound insulation coating with elasticity and static bearing capacity can be obtained.
(2) According to the invention, the first filler with a cavity structure is used for replacing solid fillers such as heavy calcium powder, barite and mica powder, so that on one hand, the curing cracking of the coating can be inhibited through the volume filling effect of the hollow filler, and further the influence of the mica powder, the heavy calcium powder and the like on the elasticity of the coating is avoided; on the other hand, the hollow structure has the sound absorption effect, and the sound insulation performance reduction caused by the inorganic filler is weakened;
(3) According to the invention, through the matching and proportioning control of the solid damping filler (second filler) and the hollow high-elastic filler (third filler), the optimal cooperative matching of damping and elasticity is realized, the deformability of the coating is expanded, the damping effect of the filler is better exerted, the good sound insulation performance is obtained, and the improvement amount of floor impact sound reaches 25-30dB.
(4) The invention adopts an aqueous system, thereby reducing environmental pollution.
Drawings
Fig. 1 is a graph showing the impact sound test of the sound-insulating paint used in example 1, example 2 and comparative example 3 of the present invention.
Detailed Description
The features and advantages of the present invention will become more apparent and clear from the following detailed description of the invention.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The invention provides a high-elasticity sound insulation coating for a floor slab, which comprises the following raw materials in parts by weight: 100-200 parts of styrene-acrylic emulsion, 100-200 parts of polyurethane emulsion, 40-100 parts of first filler, 80-200 parts of second filler, 40-100 parts of third filler, 1.5-3 parts of hydroxyethyl cellulose, 2-5 parts of dispersing agent, 4-13 parts of additive and 100-200 parts of solvent, wherein:
hydroxyethyl cellulose is an initial thickener, and the viscosity of the water solvent is adjusted to a certain value, so that the dispersibility of the filler is improved.
According to one embodiment of the invention, the first filler is a hollow rigid sound-absorbing filler, and comprises one or a combination of a plurality of hollow perlite, expanded vermiculite and floating beads, the volume filling effect of the hollow rigid material is utilized to improve the crack resistance of the paint, and meanwhile, the hollow structure has a sound-absorbing effect to improve the sound insulation performance of the paint.
According to one embodiment of the invention, the second filler is a solid damping filler, and comprises one or a combination of a plurality of nitrile rubber powder, silica gel powder, polyurethane powder, natural rubber powder and butadiene rubber powder, and the sound insulation effect is improved by utilizing the viscoelastic damping effect of the high polymer material.
According to one embodiment of the invention, the third filler is a hollow high-elastic filler, and comprises one or a combination of more of polyvinylidene chloride foaming microbeads, acrylonitrile foaming microbeads and acrylic ester foaming microbeads, and the thermoplastic hollow microbeads are utilized to improve the elastic deformation capacity of the coating, exert the viscoelastic damping effect of the second filler and the emulsion in a larger elastic deformation interval and realize a high impact sound insulation effect.
According to an embodiment of the invention, the solid content of the polyurethane emulsion and the styrene-acrylic emulsion is 45% -55%, the mass ratio of soft monomer to hard monomer of the styrene-acrylic emulsion is 20:4-20:7, the mass ratio of soft monomer to hard monomer of the polyurethane emulsion is 20/3-20/5, and the weight ratio of the styrene-acrylic emulsion to the polyurethane emulsion is 1-2:1.
According to an embodiment of the invention, the weight ratio of the first filler to the emulsion is 0.1-0.25:1.
According to an embodiment of the invention, the weight ratio of the second filler to the emulsion is 0.2-1:1.
According to an embodiment of the invention, the weight ratio of the third filler to the emulsion is 0.1-0.5:1.
According to an embodiment of the invention, the weight ratio of the third filler to the second filler is 0.15-0.4:1.
According to one embodiment of the invention, the additive comprises defoamer, thickener and bactericide, specifically, 2-5 parts of defoamer, 1-5 parts of thickener and 1-3 parts of bactericide. The defoaming agent is sodium polyacrylate or mineral oil, the thickening agent is polyurethane, and the bactericide is a kathon preservative. The bubbles of the paint in the preparation and use processes are reduced by the additive defoamer, so that cracks are reduced; the use effects of construction and paint are improved through the thickening agent, and cracks are reduced; the safety of a user during use is improved through the bactericide, and long mold is avoided; furthermore, the application coating is improved in the actual application coating process, and the application effect of the coating is further improved.
According to one embodiment of the invention, the high-elasticity sound insulation coating for the floor slab mainly comprises styrene-acrylic emulsion and polyurethane emulsion, wherein the polyurethane emulsion has high elasticity, the elasticity of the coating after curing is improved, the resonance frequency of an elastic resonance system is reduced, and the sound insulation performance is improved.
According to the embodiment of the invention, the solvent is deionized water, and an aqueous system is adopted on the basis of the high-elasticity sound insulation coating, so that the environmental pollution is reduced.
The sound insulation effect is effectively improved through the selection and proportioning regulation of the hollow rigid filler and the selection and proportioning regulation of the solid damping filler and the hollow high-elastic filler.
The invention uses the hollow rigid filler with proper particle size, the particle size range is 80-250 microns, and the inorganic rigid filler such as heavy calcium powder, mica powder, fiber and the like is replaced by the mixed particle size, so as to meet the requirement of crack resistance of the coating, and simultaneously reduce the deterioration effect of the inorganic rigid filler on the elasticity of the coating. In addition, the hollow rigid filler has the sound absorption effect, can compensate the sound insulation performance reduction caused by the elastic degradation of the paint, and further improves the sound insulation performance of the paint.
According to the invention, through matching of the hollow high-elastic filler and the solid damping filler, a large elastic strain is generated by utilizing the low elastic modulus of the hollow high-elastic filler, and the vibration reduction and sound insulation effects are achieved by combining the viscoelasticity effects of the solid damping filler and the emulsion under the large strain and utilizing the synergistic matching of damping and elasticity.
According to the invention, through blending modification of polyurethane emulsion and styrene-acrylic emulsion, matching of hard segments and soft segments of the emulsion is regulated, and matching design of hollow rigid filler and solid damping filler is combined, so that a structure that the viscoelastic soft segments wrap the rigid hard segments is constructed, and the dynamic viscoelastic damping response performance of the solid coating is optimally matched with static bearing mechanical performance.
Through the design, the coating disclosed by the invention has higher elasticity, can generate larger elastic deformation when being impacted, and can attenuate impact energy through the viscoelastic damping effect of the second filler and the emulsion within a large strain range, so that the vibration reduction and sound insulation effects are realized.
In another aspect, the present invention provides a method for preparing a coating, comprising the steps of:
adding a first filler into a solvent, and stirring, wherein the weight ratio of the first filler to the emulsion is 0.1-0.25:1, and the stirring speed is 1000-1500 rpm;
adding the styrene-acrylic emulsion and the polyurethane emulsion, and stirring, wherein the mass ratio of the polyurethane emulsion to the styrene-acrylic emulsion is 1-2:1, and the stirring speed is 800-1200 rpm;
and adding a second filler, and stirring, wherein the weight ratio of the second filler to the emulsion is 0.2-1:1, and the stirring speed is 800-1200 rpm.
And adding a third filler and stirring, wherein the weight ratio of the third filler to the emulsion is 0.1-1:1, and the stirring speed is 800-1200 rpm.
And adding a thickening agent, and adjusting to the viscosity required by construction.
Example 1
Adding 4g of hydroxyethyl cellulose, 1g of dispersing agent and 1g of defoamer, 30g of expanded vermiculite and 30g of perlite into 200g of water; 200g of styrene-acrylic emulsion and 200g of polyurethane emulsion are added; 1.5g of dispersing agent, 2g of defoaming agent, 2g of preservative (bactericide), 100g of polyurethane powder, 100g of natural rubber powder, 40g of acrylonitrile foaming microbeads, 20g of acrylic polymer foaming microbeads and a proper amount of thickening agent are added to adjust the viscosity to the viscosity required by construction. In this embodiment, the mass ratio of the third filler to the second filler is 0.3.
As shown in FIG. 1, the improvement in the weighted impact sound pressure level was 30dB for a coating having a thickness of 5 mm.
Example 2
Example 2 changed the second filler and third filler ratios in the coating as compared to example 1. The coating of example 2 contained 100g polyurethane powder and 100g natural rubber powder and 20g acrylonitrile foam beads, 20g acrylate polymer foam beads. In this embodiment, the mass ratio of the third filler to the second filler is 0.2.
As shown in FIG. 1, the improvement in the weighted impact sound pressure level of the 5mm paint was 27dB.
Comparative example 1
Comparative example 1 the composition and ratio of the emulsion were changed as compared with example 1, and the rest was the same as in example 1. The emulsion in the comparative example 1 is a styrene-acrylic emulsion with a mass ratio of soft monomer to hard monomer of 20:4-20:7.
The improvement in the weighting impact sound pressure level of the 5mm coating was 25dB.
Example 1 good sound insulation performance was obtained compared with comparative example 1 by using a polyurethane emulsion and styrene-acrylic emulsion blend modified emulsion, the impact sound improvement amount of the coating was improved by 5dB.
Meanwhile, the compressive strength of the coating of comparative example 1 was 0.3MPa, while the compressive strength of example 1 was 0.7MPa. The static bearing capacity of the coating can be improved by using the blending modification of the polyurethane emulsion and the styrene-acrylic emulsion, and meanwhile, the high elasticity is reserved.
Comparative example 2
Comparative example 2 in comparison with example 1, conventional fine ground heavy calcium and fine mica were used instead of the expanded vermiculite and perlite, and the remainder was the same as in example 1. In comparative example 2, 220g of fine ground calcium carbonate and 100g of fine mica (corresponding to the total volume of the expanded vermiculite and perlite of example 1) were contained.
Further, the improvement amount of the weighting impact sound pressure level of the 5mm paint can be made 23dB.
Compared with comparative example 1, the hollow rigid filler is used for replacing the common solid rigid filler, so that the deterioration effect of mica powder and heavy calcium powder on the elasticity of the paint is weakened, the sound insulation performance of the paint is improved, the sound absorption effect of a cavity structure is combined, the sound insulation performance of the paint is further improved, and the impact sound improvement amount of the paint is improved by 7dB.
Comparative example 3
Comparative example 3 the ratio of the second filler and the third filler was changed as compared to example 1. The weight ratio of the third filler to the second filler in example 1 was 0.3, and the weight ratio of the third filler to the second filler in this comparative example was 0.05.
As shown in FIG. 1, the improvement in the weighted impact sound pressure level of the 5mm paint was 21dB.
Comparative example 4
Comparative example 4 only the content of the third filler was changed as compared with example 1. Comparative example 4 contains 60g of acrylonitrile expanded beads and 50g of acrylic polymer expanded beads. The weight ratio of the third filler to the second filler in this comparative example was 0.55.
Further, in the process of preparing the paint, the third filler is excessively large in volume, so that a uniform paint cannot be formed. After 100g of solvent is added, a uniform coating can be formed by construction, but a cracking phenomenon occurs after a 3mm wet film is constructed, and a uniform and complete film layer is not formed.
The change in the ratio of the second filler to the third filler, as compared with the comparative examples 3 and 4, results in a change in the dispersion state of the solid damping filler and the hollow high-elastic filler. The hollow high-elastic filler is a thermoplastic material with a thin-wall structure, so that the hollow high-elastic filler has excellent elastic deformation capability, the hollow high-elastic filler can be dispersed and dispersed in a coating film to generate larger elastic deformation when being impacted, impact energy is stored through elastic strain, and in the elastic deformation and elastic deformation recovery process, the vibration energy is attenuated by using the viscoelastic damping effect of the second filler and the emulsion, so that the vibration and sound insulation effects are realized. The change of the proportion of the second filler and the third filler influences the matching of the internal damping and elasticity of the coating. According to the invention, by researching the influence of the mixture ratio of the two components on the sound insulation performance of the paint, the optimal weight ratio of the two components is determined to be 10:3. when the ratio of the two is too high, the content of the third filler is low, so that the coating has insufficient elasticity and cannot generate enough elastic deformation. The coating film is similar to a solid, and cannot generate elastic compression deformation. In a limited elastic deformation range, the damping filler cannot attenuate vibration generated by impact of the surface layer through viscoelasticity, so that the sound insulation performance is poor. When the ratio of the two is too low, the content of the third filler is high, more solvent and emulsion are needed for preparing the coating, the volume shrinkage of the coating is increased due to volatilization of water in the solvent and the emulsion, and the crack resistance of the coating is reduced.
Comparative example 5
Comparative example 4 only the content of the first filler was changed as compared with example 2. Comparative example 4 contains 10g of expanded vermiculite and 10g of perlite.
The coating is cracked after being applied to a wet film of 3mm, and a uniform and complete film layer is not formed.
Comparative example 6
Comparative example 5 only the content of the first filler was changed as compared with example 2. Comparative example 5 contains 60g of expanded vermiculite and 60g of perlite.
Furthermore, cracking occurred after the coating was applied to a 3mm wet film.
The polymer foam microbeads have low density and large oil absorption. Meanwhile, because the strength of the polymer foaming microbeads with the thin-wall structure is low, shrinkage deformation can occur when the coating is dried, so that the volume filling effect is poor, and the coating is easy to crack.
As a primary volume filling first filler, when the weight ratio of the filler to the emulsion is less than 1:10, the coating shrinks more and a uniform and complete film layer cannot be formed.
The particle size of the first filler is larger than that of the third filler, and when the weight ratio of the first filler to the emulsion is higher than 1:4, the stacking gap of the first filler is increased, so that the emulsion cannot be mutually polymerized to form a uniform and complete film layer.
The invention has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the invention. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, and these fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
What is not described in detail in the present specification is a well known technology to those skilled in the art.
Claims (10)
1. The high-elasticity sound insulation coating for the floor slab is characterized by comprising the following components in parts by weight:
the first filler is hollow rigid filler, the second filler is solid damping filler, and the third filler is hollow elastic filler;
the additives include defoamers, thickeners and bactericides.
2. The high-elasticity sound-insulating coating for floor slabs according to claim 1, wherein the first filler comprises one or more of hollow perlite, expanded vermiculite or floating beads;
the second filler comprises more than one of butyronitrile rubber powder, silica gel powder, polyurethane powder, natural rubber powder or cis-butadiene rubber powder;
the third filler comprises more than one of polyvinylidene chloride foaming microbeads, acrylonitrile foaming microbeads or acrylic ester foaming microbeads.
3. The high-elasticity sound-insulating coating for floors according to claim 1, wherein the ratio of the mass of the first filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.1-0.25:1;
the ratio of the mass of the second filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.2-0.5:1;
the ratio of the mass of the third filler to the total mass of the styrene-acrylic emulsion and the polyurethane emulsion is 0.1-0.5:1.
4. A highly elastic sound-insulating coating for floors according to claim 1, characterized in that the mass ratio of the third filler to the second filler is 0.15-0.4:1.
5. The high-elasticity sound-insulating coating for floors of claim 1, wherein the solid content of the styrene-acrylic emulsion is 45% -55%;
the solid content of the polyurethane emulsion is 45% -55%;
the weight ratio of the styrene-acrylic emulsion to the polyurethane emulsion is 1-2:1.
6. The high-elasticity sound-insulating coating for the floor slab, according to claim 1, wherein the mass ratio of the soft monomer to the hard monomer in the styrene-acrylic emulsion is 20:4-20:7; in the polyurethane emulsion, the mass ratio of the soft monomer to the hard monomer is 20:3-20:5.
7. The high-elasticity sound-insulating coating for the floor slab according to claim 1, wherein the additive comprises 2-5 parts of defoamer, 1-5 parts of thickener and 1-3 parts of bactericide;
the defoamer comprises sodium polyacrylate or mineral oil;
the thickener comprises polyurethane;
the bactericide comprises a kathon preservative.
8. The high-elasticity sound-insulating coating for floors of claim 1, wherein the solvent is deionized water.
9. A highly elastic sound-insulating coating for floor slabs according to claim 1, wherein the particle size of the first filler is 80 to 250 μm;
the particle size of the second filler is 100-180 mu m;
the particle size of the third filler is 30-50 μm.
10. A method for preparing a highly elastic sound-insulating coating for floors according to any one of claims 1 to 9, characterized by comprising:
adding hydroxyethyl cellulose, a first part of dispersing agent, a first part of defoaming agent and a first filler into a solvent, and stirring to obtain a first dispersion liquid;
adding styrene-acrylic emulsion and polyurethane emulsion into the first dispersion liquid, and stirring to obtain a second dispersion liquid;
adding a second part of dispersing agent, a second part of defoaming agent, bactericide and second filler into the second dispersion liquid, and stirring to obtain a third dispersion liquid;
adding a third filler into the third dispersion liquid, and stirring to obtain a fourth dispersion liquid; and adding a thickening agent into the fourth dispersion liquid to enable the viscosity of the dispersion liquid to reach a preset viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310338193.0A CN116463013A (en) | 2023-03-31 | 2023-03-31 | High-elasticity sound insulation coating for floor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310338193.0A CN116463013A (en) | 2023-03-31 | 2023-03-31 | High-elasticity sound insulation coating for floor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116463013A true CN116463013A (en) | 2023-07-21 |
Family
ID=87179908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310338193.0A Pending CN116463013A (en) | 2023-03-31 | 2023-03-31 | High-elasticity sound insulation coating for floor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116463013A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120108766A (en) * | 2011-03-25 | 2012-10-05 | 김선배 | Heat-hardenable paint composition having vibration damping function and sound proof function for car |
| KR101480518B1 (en) * | 2013-09-12 | 2015-01-08 | 켐마트코리아 (주) | Adhesive composite of installing interior for building with excellent restraing effect on noise and vibration |
| CN106867348A (en) * | 2017-01-18 | 2017-06-20 | 华南理工大学 | A kind of waterborne heat-insulating flame-retardant wide temperature zone high damping properties coating and preparation method thereof |
| CN112011240A (en) * | 2020-09-04 | 2020-12-01 | 惠州市百胜声学科技有限公司 | Sound insulation coating for building floor and preparation method thereof |
| CN112080193A (en) * | 2020-07-29 | 2020-12-15 | 广东沐峰节能创新科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN114409436A (en) * | 2022-01-18 | 2022-04-29 | 贵州正和天筑科技有限公司 | Phosphogypsum fireproof door core filler and preparation method thereof |
-
2023
- 2023-03-31 CN CN202310338193.0A patent/CN116463013A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120108766A (en) * | 2011-03-25 | 2012-10-05 | 김선배 | Heat-hardenable paint composition having vibration damping function and sound proof function for car |
| KR101480518B1 (en) * | 2013-09-12 | 2015-01-08 | 켐마트코리아 (주) | Adhesive composite of installing interior for building with excellent restraing effect on noise and vibration |
| CN106867348A (en) * | 2017-01-18 | 2017-06-20 | 华南理工大学 | A kind of waterborne heat-insulating flame-retardant wide temperature zone high damping properties coating and preparation method thereof |
| CN112080193A (en) * | 2020-07-29 | 2020-12-15 | 广东沐峰节能创新科技有限公司 | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof |
| CN112011240A (en) * | 2020-09-04 | 2020-12-01 | 惠州市百胜声学科技有限公司 | Sound insulation coating for building floor and preparation method thereof |
| CN114409436A (en) * | 2022-01-18 | 2022-04-29 | 贵州正和天筑科技有限公司 | Phosphogypsum fireproof door core filler and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张军科;惠学洲;: "一种水性隔热涂料的研制", 化学工程师, no. 10, pages 65 - 67 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110526610B (en) | High-strength recycled concrete and preparation method thereof | |
| CN112080193A (en) | Water-based sound-insulation shock-absorption heat-insulation coating and preparation method thereof | |
| CN113651573B (en) | Building floor heat-preservation sound-insulation board and processing method thereof | |
| CN114349457B (en) | Rubber particle modified sound insulation mortar for building and preparation method thereof | |
| CN111040597A (en) | Micro-elastic sound insulation coating and preparation method thereof | |
| CN108975795B (en) | Foamed geopolymer and preparation method and application thereof | |
| CN108751784B (en) | Special reinforcing agent for premixed pervious concrete and preparation method thereof | |
| CN116283110A (en) | High-strength recycled concrete and preparation method thereof | |
| JPH11147777A (en) | Lightweight hardened product and its production | |
| CN116463013A (en) | High-elasticity sound insulation coating for floor and preparation method thereof | |
| CN110104999A (en) | Insulate against sound mortar, acoustical insulation floor and construction techniques | |
| CN110669372B (en) | Multifunctional heat-insulating sound-insulating waterproof putty for inner and outer walls and manufacturing method thereof | |
| CN108863270A (en) | High-strength gypsum-base sound-insulating Machine-blasting mortar and composite heat-insulating layer | |
| CN112830755B (en) | High-strength plastic type water-resistant gypsum decorative material and preparation method thereof | |
| CN107973620A (en) | A kind of inorganic heat insulation mortar and preparation method thereof | |
| KR101745615B1 (en) | Polymer concrete composition and concrete pavement method using the same | |
| KR20190100641A (en) | Method and Composition for Preventing Impact Sound in Floor | |
| CN114350221A (en) | Concrete surface reinforcing agent | |
| KR100320917B1 (en) | Coating and finish-processing material using the inorganic compound powder as the main component | |
| CN110642584B (en) | Light sound-insulation high-elasticity daub and preparation method thereof | |
| CN113943523A (en) | Water-based sound-insulation shock-absorption heat-insulation coating | |
| CN115678373A (en) | Limestone-like coating and preparation method and construction process thereof | |
| KR101618963B1 (en) | Mortar Composition For Bonding Mineral Hydrate Insulation Panel | |
| CN116042035B (en) | Self-layering sound-insulating paint | |
| CN117089243A (en) | Sound insulation coating, preparation method thereof and sound insulation coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |