CN114232335B - Preparation method of sound insulation blanket for explosion door - Google Patents
Preparation method of sound insulation blanket for explosion door Download PDFInfo
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- CN114232335B CN114232335B CN202111363341.1A CN202111363341A CN114232335B CN 114232335 B CN114232335 B CN 114232335B CN 202111363341 A CN202111363341 A CN 202111363341A CN 114232335 B CN114232335 B CN 114232335B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/503—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms without bond between a carbon atom and a metal or a boron, silicon, selenium or tellurium atom
- D06M13/507—Organic silicon compounds without carbon-silicon bond
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/144—Alcohols; Metal alcoholates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
- D06M13/517—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond containing silicon-halogen bonds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Abstract
The invention discloses a preparation method of a sound insulation blanket for an explosion door, which comprises the following steps: mixing silicate A with a solvent B, immersing the mixture into a non-woven fabric C, stirring to obtain a swollen non-woven fabric C, adding deionized water, stirring, adding a weak acid solution D, stirring, adding the solvent B and deionized water, adding ammonia water to obtain a modified non-woven fabric, rinsing the modified non-woven fabric, immersing the rinsed non-woven fabric in a methylchlorosilane solution or an n-hexane solution at 50-60 ℃ for 12-24 hours to obtain a non-woven fabric with a colorless and transparent surface; rinsing the non-woven fabric with the colorless and transparent surface, and naturally airing the rinsed non-woven fabric to obtain the sound insulation blanket for the explosion door. The method has simple process and few operation steps, and the sound insulation blanket prepared by the method contains more irregular holes, can better absorb sound waves, and greatly improves the sound insulation effect of the explosion-proof door.
Description
Technical Field
The invention relates to a preparation method of a sound insulation blanket for an explosion door, and belongs to the field of civil air defense engineering safety.
Background
The explosion door is an anti-explosion protection device which resists explosion impact under certain conditions, can dissipate shock wave pressure generated by explosion, absorbs impact kinetic energy of fragments, prevents penetration and effectively prevents explosion hazard from being affected by the explosion wave. The explosion door is widely applied to places such as command rooms, civil air defense projects, explosive libraries, inflammable warehouses, workshops, mines and the like. Particularly, the explosion-proof door used in the civil air defense engineering can effectively resist and prevent shock waves and fragments generated by explosion, and protect the life and property safety of people.
The conventional explosion-proof door generally has higher structural strength to resist the impact caused by explosion, but after explosion, explosion not only can generate detonation shock waves and high-speed fragments, but also can generate huge sound, the common explosion-proof door has no sound insulation and sound absorption functions, a large amount of sound waves pass through the explosion-proof door and then are transmitted into ears of people behind the door to hurt eardrum of the human body, so that tinnitus and even hearing loss are caused, and huge harm is generated to the body of the personnel behind the door. CN207750011U discloses a sound insulation civil air defense door, the sound insulation material of this civil air defense door is the acoustic celotex board of inboard laminating of door plant, the acoustic celotex board is glass magnesium board. The sound insulation plate has certain sound insulation capability, but the preparation process is more complex, and the sound insulation plate is hard in material and is not easy to transport; CN211692143U discloses a sound-proof explosion-proof civil air defense door, the acoustic board used by the door comprises a cement board, two sound-proof damping boards connected with the left and right side walls of the cement board and a glass magnesium board connected with the sound-proof damping boards. Although the acoustic panel has a certain sound insulation function, the acoustic panel has heavy mass and is laborious to use. Therefore, there is a need to develop a soft, lightweight, sound-insulating blanket for use in composite explosion vents.
Disclosure of Invention
The invention aims to provide a preparation method of a sound insulation blanket for an explosion door, which is used for obtaining the sound insulation blanket for the explosion door with softness, light weight and good sound insulation effect.
In order to solve the technical problems, the invention adopts the following technical scheme: the preparation method of the sound insulation blanket for the explosion door is characterized by comprising the following steps of: step S01: mixing silicate A with a solvent B to obtain a first mixed solution, wherein the volume ratio of the silicate A to the solvent B is (1-3): 1; step S02: immersing the non-woven fabric C with the thickness of 20-40 mm into the first mixed solution, stirring the first mixed solution at the rotating speed of 50-100 rpm, raising the temperature of the first mixed solution to 30-60 ℃, and preserving the heat for 2-6 hours to obtain a swelled non-woven fabric C; step S03: adding deionized water into the first mixed solution immersed with the non-woven fabric C to obtain a second mixed solution, stirring the second mixed solution at a rotating speed of 150-200 rpm, then adding the weak acid solution D, and continuously stirring for 15-30 min to obtain a mixed solution E with a pH value of 2-4; step S04: sequentially adding a solvent B and deionized water into the mixed solution E, then adding ammonia water with the concentration of 10% -15% to obtain a third mixed solution with the pH value of 8-11, and stirring at the rotating speed of 20-50 rpm for 12-24 hours to obtain a modified non-woven fabric; step S05: rinsing the modified non-woven fabric with n-hexane for 3-4 times, wherein the single rinsing time is 20-30 min, and after rinsing, soaking the rinsed non-woven fabric in a trimethylchlorosilane solution or an n-hexane solution with the volume concentration of 30-45%, wherein the soaking temperature is 50-60 ℃ and the soaking time is 12-24 h, so as to obtain the non-woven fabric with a colorless and transparent surface; the volume ratio of the trimethylchlorosilane solution or the n-hexane solution to the non-woven fabric is (3-6) 1; step S06: rinsing the non-woven fabric with colorless and transparent surface by using n-hexane, spreading the rinsed non-woven fabric on a drying plate frame, naturally airing at room temperature, and obtaining the sound insulation blanket for the explosion-proof door after the solvent on the surface of the non-woven fabric naturally volatilizes; the volume of the n-hexane is 5-10 times of that of the non-woven fabric with the colorless and transparent surface.
In the method for preparing the sound insulation blanket for the explosion door, the silicate A is one of ethyl orthosilicate, methyl orthosilicate, isopropyl silicate and butyl orthosilicate.
In the preparation method of the sound insulation blanket for the explosion door, the solvent B is one of ethanol, ethyl acetate, isopropanol and n-butanol.
In the method for producing the soundproof blanket for explosion door, the nonwoven fabric C is made of one of ethylene terephthalate, butylene terephthalate and polypropylene.
In the preparation method of the sound insulation blanket for the explosion door, the weak acid solution D is one of dilute hydrochloric acid, oxalic acid and acetic acid.
In the preparation method of the sound insulation blanket for the explosion door, the volume fraction of the trimethylchlorosilane in the trimethylchlorosilane solution or the n-hexane solution is 15-30%.
In the method for preparing the sound insulation blanket for the explosion door, the volume ratio of the non-woven fabric C to the silicate A is 1 (1-5).
In the preparation method of the sound insulation blanket for the explosion door, the volume ratio of the deionized water to the silicate A is 1 (5-15).
In the aforementioned method for producing a soundproof blanket for explosion door, the amount of the solvent B added in the step S04 is the same as the amount of the solvent B added in the step S01.
In the aforementioned method for preparing the soundproof blanket for explosion door, the deionized water is added in the same amount as the deionized water is added in the step S03.
Compared with the prior art, the invention has the beneficial effects that:
1. the method has simple process and few operation steps, and the sound insulation blanket prepared by the method contains more irregular holes, can better absorb sound waves, and greatly improves the sound insulation effect of the explosion-proof door;
2. the sound insulation blanket manufactured by the method has lighter weight, can greatly lighten the overall weight of the composite explosion-proof door, is softer, and can be conveniently cut into required specifications according to specific requirements.
The invention is further described below in connection with the following detailed description.
Detailed Description
Example 1: a preparation method of a sound insulation blanket for an explosion door comprises the following steps:
mixing 200L of ethyl orthosilicate with 100L of ethanol to obtain a first mixed solution, and mixing the mixed solution with an area of 5m 2 Immersing a 20mm thick ethylene glycol phthalate non-woven fabric into the first mixed solution, stirring at a rotating speed of 50rpm, raising the temperature to 40 ℃, and preserving the temperature for 5 hours to obtain a swollen non-woven fabric;
adding 20L of deionized water into the first mixed solution immersed with the swelled non-woven fabric to obtain a second mixed solution, then increasing the stirring speed to 150rpm, adding oxalic acid into the second mixed solution to enable the pH value of the second mixed solution to be 4, and continuously stirring for 30min to obtain a mixed solution E;
sequentially adding 100L of ethanol and 20L of deionized water into the mixed solution E to obtain a third mixed solution, then adding 10% ammonia water into the third mixed solution, adjusting the pH value of the third mixed solution to 8, reducing the stirring speed to 30rpm after the addition is finished, and stirring for 15 hours to obtain a modified non-woven fabric;
rinsing the modified non-woven fabric with a large amount of n-hexane for 3 times, soaking the modified non-woven fabric into 300L of trimethylchlorosilane solution or n-hexane solution with the volume concentration of 45%, carrying out surface modification on the modified non-woven fabric, wherein the soaking temperature is 50 ℃, the soaking time is 24 hours, taking out the non-woven fabric when the surface of the non-woven fabric is colorless and transparent, rinsing the non-woven fabric with a large amount of n-hexane, spreading the rinsed non-woven fabric on an airing plate frame, and naturally volatilizing a solvent on the surface of the non-woven fabric under the room temperature condition to obtain the sound insulation blanket finished product for the explosion-proof door.
Example 2: a preparation method of a sound insulation blanket for an explosion door comprises the following steps:
mixing 300L isopropyl silicate with 100L isopropyl alcohol to obtain a first mixed solution, and cutting to form a 5m area 2 Immersing a butylene terephthalate non-woven fabric with the thickness of 30mm into the first mixed solution, starting stirring at the rotating speed of 60rpm, raising the temperature to 50 ℃, and preserving the temperature for 4 hours to obtain a swelled non-woven fabric;
adding 35L of deionized water into the first mixed solution immersed with the swelled non-woven fabric to obtain a second mixed solution, then increasing the stirring speed to 100rpm, adding dilute hydrochloric acid into the second mixed solution to control the pH value of the second mixed solution to be 2, and continuously stirring for 15min to obtain a mixed solution E;
sequentially adding 100L of isopropyl alcohol and 35L of deionized water into the mixed solution E to obtain a third mixed solution, then adding 15% ammonia water into the third mixed solution, adjusting the pH value of the third mixed solution to 9, reducing the stirring speed to 50rpm after the addition, stirring for 12 hours, and taking out the modified non-woven fabric;
rinsing the modified non-woven fabric with a large amount of n-hexane for 3 times, soaking the modified non-woven fabric in 300L of a trimethylchlorosilane solution or a n-hexane solution with the volume concentration of 45%, carrying out surface modification on the modified non-woven fabric, wherein the soaking temperature is 50 ℃, the soaking time is 24 hours, then obtaining the non-woven fabric with the surface in a colorless transparent state, then taking out the non-woven fabric with the surface in a colorless transparent state, rinsing the non-woven fabric with a large amount of n-hexane, tiling the non-woven fabric on a drying plate frame after rinsing, and naturally volatilizing a solvent on the surface of the non-woven fabric at room temperature to obtain the finished product of the soundproof blanket for the explosion-proof door.
Example 3: a preparation method of a sound insulation blanket for an explosion door comprises the following steps:
mixing 400L of butyl orthosilicate with 200L of n-butanol to obtain a first mixed solution, and cutting and molding to obtain a 5m surface area 2 Immersing a polypropylene non-woven fabric with the thickness of 40mm into the first mixed solution, stirring at a rotating speed of 90rpm, raising the temperature to 60 ℃, and preserving the heat for 2 hours to obtain a swollen non-woven fabric;
adding 50L of deionized water into the first mixed solution immersed with the swelled non-woven fabric to obtain a second mixed solution, then increasing the stirring speed to 200rpm, adding acetic acid into the second mixed solution to control the pH value of the second mixed solution to be 3, and continuously stirring for 20min to obtain a mixed solution E;
sequentially adding 200L of n-butanol and 50L of deionized water into the mixed solution E to obtain a third mixed solution, then adding 15% ammonia water into the third mixed solution, adjusting the pH value of the mixed solution to 10, reducing the stirring speed to 30rpm after the addition is finished, and taking out the modified non-woven fabric after stirring for 12 hours;
rinsing the modified non-woven fabric with a large amount of n-hexane for 3 times, transferring the modified non-woven fabric to 400L of a trimethylchlorosilane solution or an n-hexane solution with the volume concentration of 35%, carrying out surface modification on the modified non-woven fabric, soaking at the temperature of 60 ℃ for 24 hours, then obtaining the non-woven fabric with the surface in a colorless transparent state, then taking out the non-woven fabric with the surface in a colorless transparent state, rinsing the non-woven fabric with a large amount of n-hexane, tiling the non-woven fabric on a drying plate frame after rinsing, and naturally volatilizing a solvent on the surface of the non-woven fabric at the room temperature to obtain the finished product of the soundproof blanket for the explosion-proof door.
The performance of the products obtained in examples 1 to 3 above was tested, and the test contents included: density average volume. The results are shown in the following table. The average sound insulation volume is tested on the sound insulation blanket obtained by each embodiment by adopting a GB/T20247-2006 method of acoustic reverberation room sound absorption measurement.
| Performance of | Example 1 | Example 2 | Example 3 | Unit (B) |
| Density of | 0.37 | 0.42 | 0.41 | g/cm 3 |
| Average volume | 17.4 | 24.7 | 31.1 | dB |
As can be seen from the results of the table, the density and average sound insulation volume index of the sound insulation blanket for the explosion-proof door prepared by the method completely meet the corresponding performance standard requirements, so that the sound insulation blanket for the explosion-proof door, which is soft, light and good in sound insulation effect, can be obtained by the method.
Claims (1)
1. The preparation method of the sound insulation blanket for the explosion door is characterized by comprising the following steps of:
mixing 400L of butyl orthosilicate with 200L of n-butanol to obtain a first mixed solution, immersing the cut and formed polypropylene non-woven fabric with the area of 5m < 2 > and the thickness of 40mm into the first mixed solution, stirring at a rotating speed of 90rpm, raising the temperature to 60 ℃, and preserving the heat for 2 hours to obtain a swelled non-woven fabric;
adding 50L of deionized water into the first mixed solution immersed with the swelled non-woven fabric to obtain a second mixed solution, then increasing the stirring speed to 200rpm, adding acetic acid into the second mixed solution to control the pH value of the second mixed solution to be 3, and continuously stirring for 20min to obtain a mixed solution E;
sequentially adding 200L of n-butanol and 50L of deionized water into the mixed solution E to obtain a third mixed solution, then adding 15% ammonia water into the third mixed solution, adjusting the pH value of the mixed solution to 10, reducing the stirring speed to 30rpm after the addition is finished, and taking out the modified non-woven fabric after stirring for 12 hours;
rinsing the modified non-woven fabric with a large amount of n-hexane for 3 times, transferring the modified non-woven fabric into 400L of trimethyl chlorosilane solution or n-hexane solution with the volume concentration of 35%, carrying out surface modification on the modified non-woven fabric, soaking at the temperature of 60 ℃ for 24 hours, obtaining non-woven fabric with the surface being colorless and transparent, then taking out the non-woven fabric with the surface being colorless and transparent, rinsing the non-woven fabric with a large amount of n-hexane, tiling the non-woven fabric on a drying plate frame after rinsing, and naturally volatilizing a solvent on the surface of the non-woven fabric at the room temperature to obtain the finished product of the soundproof blanket for the explosion vent.
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| CN102745905A (en) * | 2012-07-25 | 2012-10-24 | 浙江大学 | Method for plating transparent mesoporous heat insulation film on glass surface |
| KR101953800B1 (en) * | 2016-10-12 | 2019-03-04 | 주식회사 엘지화학 | Aerogel blanket for ultra-high temperature, method for preparing and constructing for the same |
| KR102427987B1 (en) * | 2018-11-27 | 2022-08-02 | 주식회사 엘지화학 | Method for synthesis of pre-hydrolyzed polysilicate |
| WO2020122683A1 (en) * | 2018-12-13 | 2020-06-18 | 주식회사 엘지화학 | Aerogel blanket manufacturing method |
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