CN115260909A - Coating for improving tone quality in sound box and preparation method - Google Patents
Coating for improving tone quality in sound box and preparation method Download PDFInfo
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- CN115260909A CN115260909A CN202210958586.7A CN202210958586A CN115260909A CN 115260909 A CN115260909 A CN 115260909A CN 202210958586 A CN202210958586 A CN 202210958586A CN 115260909 A CN115260909 A CN 115260909A
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- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000010425 asbestos Substances 0.000 claims abstract description 62
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 62
- 239000000853 adhesive Substances 0.000 claims abstract description 36
- 230000001070 adhesive effect Effects 0.000 claims abstract description 36
- 239000010426 asphalt Substances 0.000 claims abstract description 33
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 31
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims description 33
- 239000011347 resin Substances 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000003208 petroleum Substances 0.000 claims description 14
- 239000005711 Benzoic acid Substances 0.000 claims description 12
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 12
- -1 alkyl benzoic acid Chemical compound 0.000 claims description 12
- 235000010233 benzoic acid Nutrition 0.000 claims description 12
- 229910052620 chrysotile Inorganic materials 0.000 claims description 12
- CWBIFDGMOSWLRQ-UHFFFAOYSA-N trimagnesium;hydroxy(trioxido)silane;hydrate Chemical compound O.[Mg+2].[Mg+2].[Mg+2].O[Si]([O-])([O-])[O-].O[Si]([O-])([O-])[O-] CWBIFDGMOSWLRQ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 239000005011 phenolic resin Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 32
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 238000012360 testing method Methods 0.000 description 18
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- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 11
- 238000002156 mixing Methods 0.000 description 11
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- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
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- KXKVLQRXCPHEJC-UHFFFAOYSA-N methyl acetate Chemical compound COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 4
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- UNLRVSBRNJYNHN-UHFFFAOYSA-N [cyano-(3-phenoxyphenyl)methyl] 2-(4-chlorophenyl)-3-methylbutanoate;dimethoxy-(4-nitrophenoxy)-sulfanylidene-$l^{5}-phosphane Chemical compound COP(=S)(OC)OC1=CC=C([N+]([O-])=O)C=C1.C=1C=C(Cl)C=CC=1C(C(C)C)C(=O)OC(C#N)C(C=1)=CC=CC=1OC1=CC=CC=C1 UNLRVSBRNJYNHN-UHFFFAOYSA-N 0.000 description 1
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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
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
Abstract
The application relates to the field of sound box coatings, and particularly discloses a coating for improving tone quality in a sound box and a preparation method thereof. The coating for improving the sound quality in the sound box comprises the following components in percentage by mass: emulsified asphalt: 76% -82%; asbestos: 12 to-16 percent; adhesive: 3% -6%; auxiliary agent: 2% -3%; the adhesive at least comprises chloroprene rubber; the auxiliary agent at least comprises a solvent. The preparation method comprises the following steps: adding emulsified asphalt, asbestos and an auxiliary agent into a reaction kettle, heating to 250-280 ℃, stirring for 1-1.5 h, filtering, removing impurities, cooling to 180-200 ℃, adding an adhesive, filtering, removing impurities, cooling to 100-120 ℃, continuously stirring for 0.5-1h, cooling to 80-90 ℃ while stirring, standing for 0.5-1h at 80-90 ℃, and cooling to room temperature to obtain the coating for improving the sound quality in the sound box. The application of improve the coating of tone quality in the audio amplifier can carry out certain improvement to audio amplifier tone quality, has better sound absorbing effect simultaneously.
Description
Technical Field
The application relates to the technical field of sound box coatings, in particular to a coating for improving sound quality in a sound box and a preparation method.
Background
More and more people seek better quality of life at present, have possessed diversified recreational activities, include installation home theater at home, installation domestic sports apparatus etc. so that carry out the leisure recreational activities.
The home theater is a playing system for playing video and audio activities such as movies and the like in a home environment, and is composed of an audio and video player, an AV power amplifier, a sound box and other devices, the home theater is installed at home, much time and money are saved, the movies and the like can be directly seen at home, and the home theater is small in size and easy to install. However, a large amount of audio and video equipment such as a sound box needs to be installed in a home theater, the volume of the sound box is limited, problems such as airflow optimization are involved, the cost of an embedded sound box with a good effect is high, the sound quality effect of a low-cost sound box is not good, the sensitivity of the home sound box is high, the power of the home sound box is high, requirements for timbre and sound quality are high, the sound quality of the sound box can be generally tested, and the detection method is basically to detect three ranges of bass, middle-pitch and treble respectively.
Ordinary family's audio amplifier equipment often uses as the family, and the often interval of using is bass, mediant, so tone quality requirement is higher when bass, mediant use, but the audio amplifier tone quality that the home theater used is relatively poor, brings uncomfortable experience for the consumer easily.
The application is proposed to the relatively poor problem of family's cinema audio amplifier tone quality.
Disclosure of Invention
In order to improve the tone quality of a home theater sound box, the application provides a coating for improving the tone quality in the sound box and a preparation method thereof.
First aspect, the application provides a coating for improving tone quality in a sound box, which adopts the following technical scheme:
a coating for improving the sound quality in a sound box comprises the following components in percentage by mass:
emulsified asphalt: 76% -82%;
asbestos: 12% -16%;
adhesive: 3% -6%;
auxiliary agent: 2% -3%;
the adhesive at least comprises chloroprene rubber;
the auxiliary agent at least comprises a solvent.
Through adopting above-mentioned technical scheme, chloroprene rubber, emulsified asphalt, have better fusibility after the asbestos is compounded, the audio amplifier coating that prepares is used for coating in audio amplifier casing junction for audio amplifier casing connectivity is more firm, has the effect that obviously helps improving audio amplifier tone quality, makes the sound absorbing effect of audio amplifier when the broadcast better simultaneously, and the electric current noise when helping reducing the broadcast reduces the audio amplifier and takes place the circumstances of reflection and resonance.
Further, the auxiliary agent also comprises one or a mixture of two of a tackifier and a flame retardant.
Further, the tackifier comprises one or more of alkyl benzoic acid resin, phenolic resin and petroleum resin.
One or more of alkyl benzoic acid resin, phenolic resin and petroleum resin is added to be compounded with chloroprene rubber, emulsified asphalt and asbestos, so that the coating for improving the tone quality in the sound box has better adsorption performance with the interior of the sound box, the sound absorption effect of the sound box during playing is improved, and the current noise during playing is reduced.
Further, the tackifier is an alkyl benzoic acid resin and a petroleum resin, wherein the ratio of the alkyl benzoic acid resin to the petroleum resin is 1: (1 to 1.5) in a weight ratio.
Through compounding alkylbenzene acid resin, petroleum resin with specific mass ratio for the tackifier reaches better adsorption efficiency, more helps promoting chloroprene rubber, emulsified asphalt, asbestos to fuse, helps improving the sound absorbing effect of audio amplifier when the broadcast, helps reducing the condition that the audio amplifier takes place reflection and resonance, makes the tone quality effect of audio amplifier better.
Further, the adhesive also comprises a silicone resin adhesive.
Still add the organic silicon resin adhesive through the adhesive, compound organic silicon resin adhesive with chloroprene rubber, emulsified asphalt, asbestos, strengthened the coating effect of the coating that improves tone quality in the audio amplifier and audio amplifier casing for the effect that improves audio amplifier tone quality is better, has better sound effect of inhaling, helps improving the sound effect of inhaling of audio amplifier when the broadcast.
Further, the asbestos comprises a mixture of one or more of chrysotile, iron asbestos and asbestos wool.
Further, the asbestos is chrysotile or iron asbestos in a proportion of 1: (2~4) in a mass ratio.
Through forming chrysotile and ferroasbestos with specific mass ratio complex for the tackifier reaches better adsorption efficiency, and is better with audio amplifier casing's adsorption efficiency, helps improving the tone quality of audio amplifier, helps promoting the sound absorbing effect of audio amplifier when the broadcast, helps reducing the audio amplifier and takes place the condition of reflection and resonance, makes the tone quality effect of audio amplifier better.
In a second aspect, the present application provides a method for preparing a coating for improving sound quality in a sound box, which adopts the following technical scheme:
a preparation method of a coating for improving sound quality in a sound box comprises the following steps:
adding emulsified asphalt, asbestos and an auxiliary agent into a reaction kettle, heating to 250-280 ℃, stirring for 1-1.5 h, filtering, removing impurities, cooling to 180-200 ℃, adding an adhesive, filtering, removing impurities, cooling to 100-120 ℃, continuously stirring for 0.5-1h, cooling to 80-90 ℃ while stirring, standing for 0.5-1h at 80-90 ℃, and cooling to room temperature to obtain the coating for improving the sound quality in the sound box.
Chloroprene rubber, emulsified asphalt, the asbestos is compounded, make the interior coating that improves tone quality of audio amplifier have better integration nature, make the audio amplifier coating that prepares obtained be used for coating in audio amplifier casing junction, make audio amplifier casing connectivity more firm, have the effect that obviously helps improving audio amplifier tone quality, make the sound absorbing effect of audio amplifier when the broadcast better simultaneously, electric current noise when helping reducing the broadcast, reduce the audio amplifier and take place the circumstances of reflection and resonance.
In summary, the present application has the following beneficial technical effects:
1. because the chloroprene rubber, the emulsified asphalt and the asbestos are compounded to have better integration, the prepared sound box coating is used for coating the joint of the sound box shell, so that the connection of the sound box shell is more stable, the sound box coating has the effect of obviously improving the sound quality of the sound box, the sound absorption effect of the sound box is better when the sound box is played, the current noise is reduced when the sound box is played, and the conditions of reflection and resonance of the sound box are reduced.
2. Through compounding alkylbenzene acid resin, petroleum resin with specific mass ratio for the tackifier reaches better adsorption efficiency, more helps promoting chloroprene rubber, emulsified asphalt, asbestos to fuse, helps improving the sound absorbing effect of audio amplifier when the broadcast, helps reducing the condition that the audio amplifier takes place reflection and resonance, makes the tone quality effect of audio amplifier better.
3. Still add the organic silicon resin adhesive through the adhesive, compound organic silicon resin adhesive with chloroprene rubber, emulsified asphalt, asbestos, strengthened the coating effect of the coating that improves tone quality in the audio amplifier and audio amplifier casing for the effect that improves audio amplifier tone quality is better, has better sound effect of inhaling, helps improving the sound effect of inhaling of audio amplifier when the broadcast.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The information on the source of each raw material used in the following examples and comparative examples is detailed in Table 1.
TABLE 1
| Raw materials | Source information |
| Emulsified asphalt | 70# model of Fushan Chuangxin chemical industry Co Ltd |
| Serpentine asbestos | The product number of Lingshou county starlight mica powder factory is 40 |
| Chloroprene rubber | The model number of the actual supplier of new materials of Borida (Dongguan) is SN232 |
| Acetic acid methyl ester | Shandong Aowei chemical Co Ltd |
| Toluene | Shandong Shunhong chemical engineering Co., ltd |
| Magnesium hydroxide | HEFEI ZHONGKE FLAME-RETARDANT NEW MATERIAL Co.,Ltd. |
| Alkyl benzoic acid resin | Shenzhen Ying group chemical limited company |
| Petroleum resin | Shijiazhuang Wide-road New Material science and technology Co Ltd |
| Silicone resin adhesive | Dongguan City Jia chen New Material Co., ltd |
| Chrysotile | Dunhuang Senxin mining company with cargo number 057 |
| Iron asbestos | The product number of the Lingshou county Jiaxin mineral product processing factory is SM-10 |
| Phenolic-butyronitrile adhesive | Dongguan city Jiaqing plastic material Co., ltd |
| Phenolic resin | Jinan Dahui chemical technology Co Ltd |
Example 1
A coating for improving sound quality in a sound box comprises 76kg of emulsified asphalt, 12kg of asbestos, 3kg of adhesive and 2kg of auxiliary agent.
In this embodiment, the asbestos is serpentine asbestos.
The adhesive is chloroprene rubber.
The auxiliary agent is a solvent, and the solvent adopts methyl acetate.
The embodiment also discloses a preparation method of the coating for improving the sound quality in the sound box, which comprises the following steps:
adding emulsified asphalt, serpentine asbestos and toluene into a reaction kettle, heating to 250 ℃, stirring for 1h, filtering, removing impurities, cooling to 180 ℃, adding chloroprene rubber, filtering, removing impurities, cooling to 100 ℃, continuing stirring for 0.5h, cooling to 80 ℃ while stirring, standing for 0.5h at 80 ℃, and cooling to room temperature to obtain the coating for improving the tone quality in the sound box.
Example 2
A coating for improving the sound quality in a sound box comprises 82kg of emulsified asphalt, 16kg of asbestos, 6kg of adhesive and 3kg of auxiliary agent.
In this embodiment, the asbestos is serpentine asbestos.
The adhesive is chloroprene rubber.
The auxiliary agent is a solvent, and the solvent adopts toluene.
The embodiment also discloses a preparation method of the coating for improving the sound quality in the sound box, which comprises the following steps:
adding emulsified asphalt, serpentine asbestos and toluene into a reaction kettle, heating to 280 ℃, stirring for 1.5 hours, filtering, removing impurities, cooling to 200 ℃, adding chloroprene rubber, filtering, removing impurities, cooling to 120 ℃, continuing stirring for 1 hour, cooling to 90 ℃ while stirring, placing 1h at 90 ℃, and cooling to room temperature to obtain the coating for improving the sound quality in the loudspeaker box.
Example 3
A coating for improving the sound quality in a sound box comprises 80kg of emulsified asphalt, 15kg of asbestos, 4kg of adhesive and 1kg of auxiliary agent.
In this embodiment, the asbestos is serpentine asbestos.
The adhesive is chloroprene rubber.
The auxiliary agent is a solvent, and the solvent adopts toluene.
The embodiment also discloses a preparation method of the coating for improving the sound quality in the sound box, which comprises the following steps:
adding emulsified asphalt, serpentine asbestos and toluene into a reaction kettle, heating to 260 ℃, stirring for 1.2 hours, filtering, removing impurities, cooling to 190 ℃, adding chloroprene rubber, filtering, removing impurities, cooling to 110 ℃, continuing stirring for 0.8 hour, cooling to 85 ℃ while stirring, standing for 0.8 hour at 85 ℃, and cooling to room temperature to obtain the coating for improving the tone quality in the sound box.
Example 4
Compared with example 3, the difference is only that:
the auxiliary agent is formed by mixing 0.5kg of solvent and 0.5kg of flame retardant, and the flame retardant adopts magnesium hydroxide.
Example 5
Compared with example 3, the difference is only that:
the auxiliary agent is formed by mixing 0.5kg of solvent and 0.5kg of tackifier, and the tackifier is phenolic resin.
Example 6
Compared with example 3, the difference is only that:
the auxiliary agent is formed by mixing 0.5kg of solvent and 0.5kg of tackifier, and the tackifier is formed by mixing 0.25kg of alkyl benzoic acid resin and 0.25kg of petroleum resin.
Example 7
Compared with example 6, the difference is only that:
the auxiliary agent is formed by mixing 0.5kg of solvent and 0.5kg of tackifier, and the tackifier is formed by mixing 0.2kg of alkyl benzoic acid resin and 0.3kg of petroleum resin.
Example 8
Compared with example 3, the difference is only that:
the adhesive is formed by mixing 3kg of chloroprene rubber and 1kg of organic silicon resin adhesive.
Example 9
Compared with example 3, the only difference is that:
the asbestos is chrysotile.
Example 10
Compared with example 3, the only difference is that:
the asbestos is formed by mixing 5kg of chrysotile and 10kg of ferroasbestos.
Example 11
Compared with example 3, the difference is only that:
the asbestos is formed by mixing 3kg of chrysotile and 12kg of iron asbestos.
Example 12
Compared with example 3, the difference is only that:
the auxiliary agent adopts methyl acetate.
The asbestos is chrysotile.
Comparative example 1
Compared with example 3, the difference is only that:
the same amount of phenolic aldehyde-butyronitrile adhesive is used to replace emulsified asphalt, serpentine asbestos and chloroprene rubber.
Comparative example 2
Compared with example 3, the difference is only that:
the emulsified asphalt is replaced by the same amount of phenolic aldehyde-butyronitrile adhesive.
Comparative example 3
Compared with example 3, the difference is only that:
the same amount of phenolic-butyronitrile adhesive is used to replace serpentine asbestos.
Comparative example 4
Compared with example 3, the only difference is that:
the chloroprene rubber is replaced by the equivalent amount of phenolic-butyronitrile adhesive.
Comparative example 5
Compared with example 3, the difference is only that:
the same amount of phenolic aldehyde-butyronitrile adhesive is used to replace emulsified asphalt and serpentine asbestos. A (c)
Comparative example 6
Compared with example 3, the difference is only that:
the equivalent phenolic aldehyde-butyronitrile adhesive is adopted to replace serpentine asbestos and chloroprene rubber.
Comparative example 7
Compared with example 3, the difference is only that:
the same amount of phenolic aldehyde-butyronitrile adhesive is used to replace emulsified asphalt and chloroprene rubber.
Sound quality testing
Professional software testing
Test preparation: downloading the software of the audio 100 audio tester audio signal generator, setting the software, clicking the setting, selecting the playing times, then selecting the item to be tested in the test list, and clicking the 'playing' to test and evaluate.
Chord wave test: and testing the 1khz positive chord waves.
And (3) low-frequency testing: the low frequency was tested and the frequencies 25hz, 31.5hz, 40hz, 50hz, 63hz were set respectively.
Upper frequency limit: setting the frequency of 80 to 160hz.
And (3) testing the human voice: setting the frequency to be 300 to 500hz.
And (3) layering sense testing: setting the frequency of 2-4 khz.
Testing the pause point: the frequency was set at 3 to 5khz.
And (4) high-pitch testing: setting the frequency to be 8 to 12khz.
The test results are shown in table 2.
TABLE 2
| Test interval | Positive chord wave test | Low frequency testing | Upper limit of frequency | Human voice test | Layering test | Point of minute test | High pitch test |
| Example 1 | Is normal and normal | Is normal and normal | Is normal | Is normal | Is normal | Is normal | Catton |
| Example 2 | Is normal and normal | Is normal | Is normal | Is normal | Is normal | Is normal | Catton |
| Example 3 | Is normal and normal | Is normal | Is normal | Is normal | Is normal | Is normal and normal | Caton |
| Example 4 | Is normal | Clear and clear | Is normal | Is normal | Clear and clear | Is normal | Is normal and normal |
| Example 5 | Is normal | Clear and clear | Is normal | Clear and clear | Clear and clear | Is normal | Is normal |
| Example 6 | Is normal | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal | Is normal and normal |
| Example 7 | Is normal | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal | Is normal |
| Example 8 | Is normal | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal |
| Example 9 | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal |
| Example 10 | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal |
| Example 11 | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal |
| Example 12 | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Clear and clear | Is normal |
| Comparative example 1 | Silent sound | Catton | Catton | Silent sound | Silent sound | Catton | Silent sound |
| Comparative example 2 | Catton | Caton | Silent sound | Catton | Catton | Caton | Catton |
| Comparative example 3 | Catton | Silent sound | Catton | Catton | Catton | Catton | Catton |
| Comparative example 4 | Caton | Caton | Catton | Silent sound | Catton | Catton | Catton |
| Comparative example 5 | Caton | Catton | Catton | Catton | Catton | Catton | Catton |
| Comparative example 6 | Catton | Catton | Catton | Caton | Catton | Caton | Catton |
| Comparative example 7 | Catton | Catton | Catton | Caton | Catton | Catton | Catton |
According to table 2, the data of the embodiment 1~3 is compared with the data of the comparative example 1, and the sound quality of the sound box is obviously improved by using the chloroprene rubber, the emulsified asphalt and the asbestos, and particularly, the sound quality of the sound box is shown in the low pitch stage and the middle pitch stage, which shows that the sound quality improving coating in the sound box prepared by compounding the chloroprene rubber, the emulsified asphalt and the asbestos has the effect of obviously improving the sound quality of the sound box.
According to table 2, the embodiment 1~3 is compared with the comparative example 2~7, and it can be seen that the sound quality of the sound box is obviously improved after chloroprene rubber, emulsified asphalt and asbestos are compounded, especially, the sound quality of the sound box is shown in the bass and midrange stages, and the sound box cannot obviously improve the sound quality of the sound box when any component is replaced.
According to the data in table 2, the data in the embodiments 4 and 5 are respectively compared with the data in the embodiment 1~3, and the auxiliary agent is one or more of a tackifier, a solvent and a flame retardant, so that the sound quality of the sound box is obviously improved after the auxiliary agent is compounded with chloroprene rubber, emulsified asphalt and asbestos, and the sound quality of the sound box is better improved.
According to the data comparison between the embodiment 6 and the embodiment 3 in table 2, the tackifier is one or more of alkyl benzoic acid resin, phenolic resin and petroleum resin, and the tackifier is compounded with chloroprene rubber, emulsified asphalt and asbestos to obviously improve the sound quality of the sound box, so that the sound box has the effect of better improving the sound quality of the sound box.
According to the data comparison between the embodiment 8 and the embodiment 3 in table 2, the tackifier is prepared by mixing alkyl benzoic acid resin and petroleum resin according to a specific mass ratio, and the tackifier is compounded with chloroprene rubber, emulsified asphalt and asbestos to obviously improve the sound quality of the sound box, so that the sound box has the effect of better improving the sound quality of the sound box.
According to the data in table 2, the comparison between the data in embodiment 9 and the data in embodiment 3 shows that the asbestos is one or more of chrysotile, iron asbestos and asbestos, and the sound quality of the sound box is obviously improved after the asbestos is compounded with chloroprene rubber, emulsified asphalt and asbestos, so that the sound quality of the sound box is better improved.
According to table 2, the data of the embodiments 10 and 11 are compared with the data of the embodiment 3, respectively, so that the asbestos is formed by mixing chrysotile and asbestos with a specific mass ratio, and the sound quality of the sound box is obviously improved after the asbestos is compounded with chloroprene rubber, emulsified asphalt and asbestos, and the effect of better improving the sound quality of the sound box is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a coating of tone quality improves in audio amplifier which characterized in that: the composite material comprises the following components in percentage by mass:
emulsified asphalt: 76% -82%;
asbestos: 12% -16%;
adhesive: 3% -6%;
auxiliary agent: 2% -3%;
the adhesive at least comprises chloroprene rubber;
the auxiliary agent at least comprises a solvent.
2. The coating for improving sound quality in an acoustic enclosure of claim 1, wherein: the auxiliary agent also comprises one or a mixture of two of a tackifier and a flame retardant.
3. The coating for improving sound quality in an acoustic enclosure of claim 2, wherein: the tackifier comprises one or more of alkyl benzoic acid resin, phenolic resin and petroleum resin.
4. A coating for improving sound quality in an acoustic enclosure according to claim 3, wherein: the tackifier is alkyl benzoic acid resin and petroleum resin, wherein the weight ratio of the alkyl benzoic acid resin to the petroleum resin is 1: (1 to 1.5) in a weight ratio.
5. A coating for improving sound quality in an acoustic enclosure according to any one of claims 1-2, wherein: the adhesive also comprises a silicone resin adhesive.
6. A coating for improving sound quality in an acoustic enclosure according to any one of claims 1-2, wherein: the asbestos comprises one or a mixture of chrysotile, iron asbestos and asbestos.
7. The coating for improving sound quality in an acoustic enclosure according to any one of claims 6, wherein: the asbestos is chrysotile or iron asbestos in a proportion of 1: (2~4) in a mass ratio.
8. A preparation method of a coating for improving tone quality in a sound box is characterized by comprising the following steps:
adding emulsified asphalt, asbestos and an auxiliary agent into a reaction kettle, heating to 250-280 ℃, stirring for 1-1.5 h, filtering, removing impurities, cooling to 180-200 ℃, adding an adhesive, filtering, removing impurities, cooling to 100-120 ℃, continuously stirring for 0.5-1h, cooling to 80-90 ℃ while stirring, standing for 0.5-1h at 80-90 ℃, and cooling to room temperature to obtain the coating for improving the sound quality in the sound box.
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|---|---|---|---|---|
| GB1034361A (en) * | 1961-09-21 | 1966-06-29 | Supra Chemicals And Paints Ltd | Improvements in or relating to materials for use in sound-deadening, sealing or other purposes |
| GB1286562A (en) * | 1969-02-24 | 1972-08-23 | Daubert Chemical Co | Protective coating compositions for use in airless spray equipment for coating metallic underbodies of automotive vehicles |
| US20110232529A1 (en) * | 2008-10-02 | 2011-09-29 | Eurovia | Bituminous coating with great acoustic performance |
| CN202659590U (en) * | 2012-03-21 | 2013-01-09 | 上虞市鹏翔暖通设备有限公司 | Noise-reducing soundproof box for fan |
| CN112011273A (en) * | 2020-08-20 | 2020-12-01 | 山东北方创信防水科技集团股份有限公司 | Spraying rapid-hardening rubber asphalt waterproof coating and preparation and construction method thereof |
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| GB1034361A (en) * | 1961-09-21 | 1966-06-29 | Supra Chemicals And Paints Ltd | Improvements in or relating to materials for use in sound-deadening, sealing or other purposes |
| GB1286562A (en) * | 1969-02-24 | 1972-08-23 | Daubert Chemical Co | Protective coating compositions for use in airless spray equipment for coating metallic underbodies of automotive vehicles |
| US20110232529A1 (en) * | 2008-10-02 | 2011-09-29 | Eurovia | Bituminous coating with great acoustic performance |
| CN202659590U (en) * | 2012-03-21 | 2013-01-09 | 上虞市鹏翔暖通设备有限公司 | Noise-reducing soundproof box for fan |
| CN112011273A (en) * | 2020-08-20 | 2020-12-01 | 山东北方创信防水科技集团股份有限公司 | Spraying rapid-hardening rubber asphalt waterproof coating and preparation and construction method thereof |
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