CN114919512A - High-elasticity sound-absorbing cotton assisting air purification for automotive interior and preparation method thereof - Google Patents

High-elasticity sound-absorbing cotton assisting air purification for automotive interior and preparation method thereof Download PDF

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Publication number
CN114919512A
CN114919512A CN202210768040.5A CN202210768040A CN114919512A CN 114919512 A CN114919512 A CN 114919512A CN 202210768040 A CN202210768040 A CN 202210768040A CN 114919512 A CN114919512 A CN 114919512A
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China
Prior art keywords
layer
cotton
elasticity
permanent magnet
porous net
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CN202210768040.5A
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Chinese (zh)
Inventor
王其胜
徐旺梅
李贤明
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Hubei Tianyun Noise Reduction And Antivibration New Material Co ltd
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Hubei Tianyun Noise Reduction And Antivibration New Material Co ltd
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Priority to CN202210768040.5A priority Critical patent/CN114919512A/en
Publication of CN114919512A publication Critical patent/CN114919512A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B15/00—Layered products comprising a layer of metal
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
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    • B60H2003/0691—Adsorption filters, e.g. activated carbon
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The invention provides high-elasticity auxiliary air purification automotive interior sound-absorbing cotton and a preparation method thereof. According to the invention, a zeolite molecular sieve with a gas adsorption effect is taken as a carrier to be attached with a nano titanium dioxide catalyst, toxic and harmful gases such as formaldehyde, benzene and TVOC are absorbed and decomposed by utilizing ultraviolet rays reflected in a vehicle, chlorine dioxide is taken as an auxiliary oxidant to further reinforce the decomposition and purification effects, and redundant acid gas is absorbed by using humid alkali, so that the peculiar smell released by the harmful gases is covered by releasing natural fragrance through natural plant essential oil and plant essence, the comprehensive and multi-level purification and the vehicle interior fresh air environment are achieved, the noise is efficiently isolated by overlapping multi-level sound absorption and insulation materials, a quiet and peaceful environment is created in the vehicle, and the working efficiency is good and the benefit is high during use.

Description

High-elasticity auxiliary air purification automobile interior sound absorption cotton and preparation method thereof
Technical Field
The invention relates to the technical field of sound-absorbing cotton manufacturing, in particular to high-elasticity sound-absorbing cotton for assisting air purification of automotive interiors and a preparation method thereof.
Background
Noise pollution is a big public hazard of human living environment, which not only seriously damages the auditory nerve, cardiovascular system and nervous system, but also accelerates the aging of buildings and industrial machinery, and influences the precision and service life of instruments. With the increasing emphasis on noise control, various sound absorption and noise reduction methods are also brought forward. The traditional sound absorption material, glass wool, has many defects, such as low noise reduction coefficient, short service life, environmental pollution, and secondary pollution, and its application is limited, and it has been out of the market and replaced by new sound absorption material. The fiber sound-absorbing material can have good sound-absorbing effect in a wider frequency band, so that the fiber sound-absorbing material can replace the traditional porous partition material represented by centrifugal glass wool and the like, and the fiber sound-absorbing material which has the functions of environmental protection, reutilization, decoration and excellent acoustic performance can be more and more accepted by the market.
Because automobile assembling material volatilizees easily in the car at high temperature insolate in-process and produces poisonous and harmful gas such as formaldehyde, benzene, TVOC, personnel will produce strong discomfort in inhaling the human body with poisonous and harmful gas such as formaldehyde, benzene in a confined environment when the car, can endanger human life safety even, need one kind can absorb, decompose poisonous and harmful gas's such as formaldehyde, benzene, TVOC automotive interior sound insulation and inhale sound cotton and be used for solving the technical problem that meets at present urgently.
Disclosure of Invention
In order to solve the technical problems, the invention provides an interior trim material with good sound insulation and noise reduction effects, which can absorb and decompose toxic and harmful gases such as formaldehyde, benzene, TVOC and the like generated by volatilization in a vehicle, and has better sound insulation effects while refreshing and purifying air in the vehicle while absorbing and decomposing the toxic and harmful gases.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a high-elasticity auxiliary air purification automotive interior sound-absorbing cotton comprises a high-elasticity supporting layer, wherein elastic porous net layers are arranged on the upper side and the lower side of the high-elasticity supporting layer, a porous net connecting permanent magnet and a supporting layer connecting permanent magnet are arranged at the connecting position of the elastic porous net layers and the horizontal side of the high-elasticity supporting layer, the porous net connecting permanent magnet is embedded in the elastic porous net layers, and the supporting layer connecting permanent magnet is embedded in the high-elasticity supporting layer; the inner layers of the elastic porous net layer are respectively provided with an air purification layer and an air refreshing layer, the inner layers of the air purification layer and the air refreshing layer are respectively and correspondingly provided with an organic bi-component cotton layer and a porous honeycomb cotton layer, the inner layers of the organic bi-component cotton layer and the porous honeycomb cotton layer are respectively and correspondingly provided with a microporous non-woven fabric layer and a brake pad slag material layer, and the inner layers of the microporous non-woven fabric layer and the brake pad slag material layer are respectively and correspondingly provided with an inorganic bi-component cotton layer and a foamed plastic sound insulation layer; the middle part of the elastic porous net layer is provided with a penetrating connection column, the front end of the penetrating connection column is embedded with a penetrating column connection permanent magnet, and the penetrating column connection permanent magnet connects the penetrating connection column on the elastic porous net layer on two sides of the high-elasticity supporting layer to the high-elasticity supporting layer in a magnetic force mode.
Preferably, the layers between the highly elastic support layer and the elastic porous mesh layer are rotationally symmetric about a central axis through the post connecting the permanent magnets.
Preferably, the upper side and the lower side of the high-elasticity supporting layer are both provided with aluminum alloy net racks, and both sides of the aluminum alloy net racks are inserted into the side of the high-elasticity supporting layer and downwards wrapped with the elastic porous net layer.
Preferably, the middle parts of the left side and the right side of the high-elasticity supporting layer are provided with mounting grooves, and the depth of the mounting grooves is lower than the thickness of the side wall of the high-elasticity supporting layer.
Preferably, the air-cleaning layer includes: mixing sodium carbonate/sodium bicarbonate, nano titanium-loaded zeolite molecular sieve, chlorine dioxide disinfection powder and water to prepare a moist paste with the water content of 10-35%, and controlling the concentration of chlorine dioxide released by the chlorine dioxide disinfection powder to be not more than 0.3mg/m 3 。
Preferably, the air freshening layer comprises: mixing nanometer titanium-loaded zeolite molecular sieve, activated carbon, natural plant essential oil, plant essence, and anhydrous calcium chloride, and making into wet paste.
Preferably, the organic bi-component cotton layer is one of PP/PET bi-component cotton, PP/cellulose bi-component cotton, PP/PPTA bi-component cotton, PPTA/PTFE bi-component cotton, PTFE/PBT bi-component cotton, polyimide/cellulose bi-component cotton, and tetrafluoroethylene-hexafluoropropylene copolymer/polyurethane bi-component cotton.
Preferably, the inorganic bicomponent cotton layer is made of one of carbon fiber/graphene bicomponent cotton, glass fiber/metal fiber bicomponent cotton, slag wool fiber/ceramic fiber bicomponent cotton, and basalt fiber/activated carbon fiber bicomponent cotton.
The preparation method of the high-elasticity auxiliary air purification sound-absorbing cotton for the automotive interior comprises the following steps:
s1, forming: the method comprises the following steps of (1) obtaining a high-elasticity supporting layer, an elastic porous net layer and an aluminum alloy net rack inserted into the high-elasticity supporting layer through mould pouring, adding a porous net connection permanent magnet, a supporting layer connection permanent magnet and a penetrating column connection permanent magnet in a pouring mould in advance to enable the porous net connection permanent magnet, the supporting layer connection permanent magnet and the penetrating column connection permanent magnet to be respectively embedded into the high-elasticity supporting layer and the elastic porous net layer, and trimming and polishing the obtained high-elasticity supporting layer and the elastic porous net layer to obtain an installation groove and an insertion hole for inserting the aluminum alloy net rack;
s2, hot pressing: repeatedly hot-pressing the materials to an organic bi-component cotton layer, a microporous non-woven fabric layer, an inorganic bi-component cotton layer, a foam plastic sound insulation layer and a brake pad slag material layer by a mould press at the temperature of 80-150 ℃ until the materials in each layer are firmly adhered without cracking, the surface has no protrusion and the whole body is flat;
s3, filling: correspondingly filling an air purification layer, an organic bi-component cotton layer, a microporous non-woven fabric layer, an inorganic bi-component cotton layer, a foam plastic sound insulation layer, an air cleaning layer and a brake pad slag layer into an upper side cavity formed by a high-elasticity supporting layer and an elastic porous net layer, and arranging a through hole penetrating through a connecting column on the elastic porous net layer in the middle of each layer;
s4, assembling: and fixing and connecting the elastic porous net layer with the high-elasticity supporting layer through the porous net connecting permanent magnet, the supporting layer connecting permanent magnet and the penetrating column connecting permanent magnet, turning over, performing the same operation on the lower side of the high-elasticity supporting layer, inserting the aluminum alloy net racks on the upper side and the lower side of the high-elasticity supporting layer into corresponding jacks, polishing and trimming the whole soundproof cotton again to obtain the interior sound absorption cotton.
The invention has the beneficial effects that: according to the invention, a zeolite molecular sieve with a gas adsorption effect is taken as a carrier to be attached with a nano titanium dioxide catalyst, toxic and harmful gases such as formaldehyde, benzene and TVOC are absorbed and decomposed by utilizing ultraviolet rays reflected in a vehicle, chlorine dioxide is taken as an auxiliary oxidant to further reinforce the decomposition and purification effects, and redundant acid gas is absorbed by using humid alkali, so that the peculiar smell released by the harmful gases is covered by releasing natural fragrance through natural plant essential oil and plant essence, the purposes of omnibearing, multi-level purification and vehicle interior air freshening are achieved, the noise is efficiently isolated by overlapping multi-level sound absorption and insulation materials, a quiet and peaceful environment is created in the vehicle, the overall design structure is reasonable and scientific, the working efficiency is good, and the benefit is high.
Drawings
Fig. 1 is a schematic cross-sectional view of the high elasticity auxiliary air purification sound-absorbing cotton for automotive interiors of the present invention 1.
Fig. 2 is a schematic cross-sectional view 2 of the high elasticity auxiliary air purification sound-absorbing cotton for automotive interiors of the present invention.
Fig. 3 is a schematic front view of the high elasticity auxiliary air purification sound-absorbing cotton for automotive interiors of the present invention.
In the figure: 1. a high-elasticity supporting layer; 2. an elastic porous web layer; 3. an aluminum alloy net rack; 4. the porous net is connected with a permanent magnet; 5. the support layer is connected with the permanent magnet; 6. the connecting column is penetrated; 7. the penetrating column is connected with a permanent magnet; 8. an air purification layer; 9. an organic bi-component cotton layer; 10. a microporous nonwoven layer; 11. an inorganic bicomponent cotton layer; 12. a foam sound insulating layer; 13. an air freshening layer; 14. a brake pad slag layer; 15. a porous cellular cotton layer; 16. and installing a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, a high-elasticity auxiliary air-purifying sound-absorbing cotton for automotive interiors comprises a high-elasticity supporting layer 1, wherein elastic porous net layers 2 are arranged on the upper side and the lower side of the high-elasticity supporting layer 1, a porous net connecting permanent magnet 4 and a supporting layer connecting permanent magnet 5 are arranged at the connecting position of the elastic porous net layers 2 and the horizontal side of the high-elasticity supporting layer 1, the porous net connecting permanent magnet 4 is embedded in the elastic porous net layers 2, and the supporting layer connecting permanent magnet 5 is embedded in the high-elasticity supporting layer 1; the inner layers of the elastic porous net layer 2 are respectively provided with an air purification layer 8 and an air refreshing layer 13, the inner layers of the air purification layer 8 and the air refreshing layer 13 are respectively and correspondingly provided with an organic double-component cotton layer 9 and a porous honeycomb cotton layer 15, the inner layers of the organic double-component cotton layer 9 and the porous honeycomb cotton layer 15 are respectively and correspondingly provided with a microporous non-woven fabric layer 10 and a brake pad slag material layer 14, and the inner layers of the microporous non-woven fabric layer 10 and the brake pad slag material layer 14 are respectively and correspondingly provided with an inorganic double-component cotton layer 11 and a foamed plastic sound insulation layer 12; the middle part of the elastic porous net layer 2 is provided with a through connecting column 6, the front end of the through connecting column 6 is embedded with a through column connection permanent magnet 7, the through column connection permanent magnet 7 magnetically connects the through connecting column 6 on the elastic porous net layer 2 at two sides of the high-elasticity supporting layer 1 to the high-elasticity supporting layer 1, and all layers between the high-elasticity supporting layer 1 and the elastic porous net layer 2 are rotationally symmetrical around the central axis of the through column connection permanent magnet 7.
As shown in figures 1 and 3, the high-elasticity auxiliary air purification automobile interior sound absorption cotton is characterized in that aluminum alloy net racks 3 are arranged on the upper side and the lower side of a high-elasticity supporting layer 1, and two sides of each aluminum alloy net rack 3 are inserted into the side of the high-elasticity supporting layer 1 and wrap an elastic porous net layer 2 downwards.
As shown in figure 2, the high-elasticity auxiliary air purification sound absorption cotton for the automotive interior is characterized in that mounting grooves 16 are formed in the middle of the left side and the right side of a high-elasticity supporting layer 1, and the depth of each mounting groove 16 is smaller than the thickness of the side wall of the high-elasticity supporting layer 1.
Further, the air purification layer 8 includes: mixing sodium carbonate/sodium bicarbonate, a nano titanium-loaded zeolite molecular sieve, chlorine dioxide disinfection powder and water to prepare a wet paste with the water content of 10-35%, and controlling the concentration of chlorine dioxide released by the chlorine dioxide disinfection powder to be not more than 0.3mg/m 3 。
Further, the air freshening layer 13 includes: mixing nanometer titanium-loaded zeolite molecular sieve, activated carbon, natural plant essential oil, plant essence, and anhydrous calcium chloride, and making into wet paste.
Further, the organic bicomponent cotton layer 9 is provided as PP/PET bicomponent cotton.
Further, the inorganic bicomponent cotton layer 11 is provided as carbon fiber/graphene bicomponent cotton.
Example 2
The present embodiment is different from embodiment 1 in that:
the organic bi-component cotton layer is PPTA/PTFE bi-component cotton.
The inorganic bi-component cotton layer is made of glass fiber/metal fiber bi-component cotton.
Example 3
The present embodiment is different from embodiments 1 and 2 in that:
the organic bi-component cotton layer is made of PTFE/PBT bi-component cotton.
The inorganic bi-component cotton layer is arranged as slag cotton fiber/ceramic fiber bi-component cotton.
Example 4
The present embodiment is different from embodiments 1, 2, and 3 in that:
the organic bi-component cotton layer is arranged to be polyimide/cellulose bi-component cotton.
The inorganic bi-component cotton layer is set as mineral wool fiber/ceramic fiber bi-component cotton.
Example 5
The present embodiment is different from embodiment 1 in that:
the organic bi-component cotton layer is made of tetrafluoroethylene-hexafluoropropylene copolymer/polyurethane bi-component cotton.
The inorganic bi-component cotton layer is made of basalt fiber/activated carbon fiber bi-component cotton.
The preparation method of the high-elasticity auxiliary air purification sound absorption cotton for the automotive interior comprises the following steps:
s1, forming: the method comprises the steps of pouring a high-elasticity supporting layer 1, an elastic porous net layer 2 and an aluminum alloy net rack 3 inserted into the high-elasticity supporting layer 1 through a die, adding a porous net connecting permanent magnet 4, a supporting layer connecting permanent magnet 5 and a penetrating column connecting permanent magnet 7 in the pouring die in advance to enable the porous net connecting permanent magnet to be embedded into the high-elasticity supporting layer 1 and the elastic porous net layer 2 respectively, trimming and polishing the obtained high-elasticity supporting layer 1 and the elastic porous net layer 2 to obtain an installation groove 16 and a jack for inserting the aluminum alloy net rack 3;
s2, hot pressing: respectively and repeatedly hot-pressing the mixture to an organic double-component cotton layer 9, a microporous non-woven fabric layer 10, an inorganic double-component cotton layer 11, a foamed plastic sound insulation layer 12 and a brake pad slag layer 14 by a mould press at the temperature of 80-150 ℃ until all the layers are firmly adhered without cracking, have no bulges on the surface and are flat integrally;
s3, filling: correspondingly filling an air purification layer 8, an organic bi-component cotton layer 9, a microporous non-woven fabric layer 10, an inorganic bi-component cotton layer 11, a foam plastic sound insulation layer 12, an air purification layer 13 and a brake pad slag material layer 14 into an upper side cavity formed by a high-elasticity supporting layer 1 and an elastic porous net layer 2, and arranging a through hole penetrating through a connecting column 6 on the elastic porous net layer 2 in the middle of each layer;
s4, assembling: fixing and connecting the elastic porous net layer 2 with the high-elasticity supporting layer 1 through the porous net connecting permanent magnet 4, the supporting layer connecting permanent magnet 5 and the penetrating column connecting permanent magnet 7, turning over the elastic porous net layer, performing the same operation on the lower side of the high-elasticity supporting layer 1, inserting the aluminum alloy net racks 3 on the upper side and the lower side of the high-elasticity supporting layer 1 into corresponding inserting holes, polishing and trimming the whole soundproof cotton again to obtain the interior sound absorption cotton.
According to the invention, a zeolite molecular sieve with a gas adsorption effect is taken as a carrier to be attached with a nano titanium dioxide catalyst, toxic and harmful gases such as formaldehyde, benzene, TVOC and the like are absorbed and decomposed by ultraviolet rays reflected in a vehicle, chlorine dioxide is taken as an auxiliary oxidant to further reinforce the decomposition and purification effects, wet alkali is used to absorb redundant acid gas, natural fragrance is released by natural plant essential oil and plant essence to cover peculiar smell released by the harmful gases, the comprehensive and multi-level purification and freshening of the air environment in the vehicle are achieved, noise is efficiently isolated by multi-level overlapped sound absorption and insulation materials, a quiet and peaceful environment is created in the vehicle, the overall design structure is reasonable and scientific, the working efficiency is good, and the benefit is high.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A high-elasticity sound-absorbing cotton for assisting air purification of automotive interiors is characterized by comprising a high-elasticity supporting layer (1), wherein elastic porous net layers (2) are arranged on the upper side and the lower side of the high-elasticity supporting layer (1), a porous net connecting permanent magnet (4) and a supporting layer connecting permanent magnet (5) are arranged at the connection position of the elastic porous net layers (2) and the horizontal side of the high-elasticity supporting layer (1), the porous net connecting permanent magnet (4) is embedded in the elastic porous net layers (2), and the supporting layer connecting permanent magnet (5) is embedded in the high-elasticity supporting layer (1);
the inner layers of the elastic porous net layer (2) are respectively provided with an air purification layer (8) and an air refreshing layer (13), the inner layers of the air purification layer (8) and the air refreshing layer (13) are respectively and correspondingly provided with an organic bi-component cotton layer (9) and a porous honeycomb cotton layer (15), the inner layers of the organic bi-component cotton layer (9) and the porous honeycomb cotton layer (15) are respectively and correspondingly provided with a microporous non-woven fabric layer (10) and a brake pad slag material layer (14), and the inner layers of the microporous non-woven fabric layer (10) and the brake pad slag material layer (14) are respectively and correspondingly provided with an inorganic bi-component cotton layer (11) and a foamed plastic sound insulation layer (12);
the middle part of the elastic porous net layer (2) is provided with a penetrating connecting column (6), the front end of the penetrating connecting column (6) is embedded with a penetrating column connection permanent magnet (7), and the penetrating column connection permanent magnet (7) connects the penetrating connecting column (6) on the elastic porous net layer (2) on two sides of the high-elasticity supporting layer (1) to the high-elasticity supporting layer (1) in a magnetic manner.
2. The high elasticity auxiliary air purification automotive interior acoustic wool according to claim 1, wherein each layer between the high elasticity support layer (1) and the elastic porous mesh layer (2) is rotationally symmetric around a central axis through which a permanent magnet (7) is connected to the post.
3. The high elasticity auxiliary air purification automotive interior sound-absorbing cotton according to claim 1, characterized in that the upper and lower sides of the high elasticity support layer (1) are provided with aluminum alloy wire frames (3), and both sides of the aluminum alloy wire frames (3) are inserted into the inside of the side of the high elasticity support layer (1) and wrap the elastic porous net layer (2) downwards.
4. The high elasticity auxiliary air purification automotive interior sound-absorbing cotton according to claim 1, characterized in that the middle of the left and right sides of the high elasticity support layer (1) is provided with a mounting groove (16), and the depth of the mounting groove (16) is less than the thickness of the side wall of the high elasticity support layer (1).
5. The high elasticity auxiliary air purification sound absorbing cotton for automotive interiors according to claim 1, characterized in that said air purification layer (8) comprises: mixing sodium carbonate/sodium bicarbonate, nano titanium-loaded zeolite molecular sieve, chlorine dioxide disinfection powder and water to prepare a moist paste with the water content of 10-35%, and controlling the concentration of chlorine dioxide released by the chlorine dioxide disinfection powder to be not more than 0.3mg/m 3 。
6. The high elasticity auxiliary air purification sound-absorbing cotton for automotive interiors according to claim 1, characterized in that said air freshening layer (13) comprises: mixing nanometer titanium-carrying zeolite molecular sieve, activated carbon, natural plant essential oil, plant essence, and anhydrous calcium chloride, and making into wet paste.
7. The highly elastic auxiliary air-purifying sound absorbing cotton for automotive interiors according to claim 1, wherein said organic bi-component cotton layer (9) is provided as one of PP/PET bi-component cotton, PP/cellulose bi-component cotton, PP/PPTA bi-component cotton, PPTA/PTFE bi-component cotton, PTFE/PBT bi-component cotton, polyimide/cellulose bi-component cotton, tetrafluoroethylene-hexafluoropropylene copolymer/polyurethane bi-component cotton.
8. The high elasticity auxiliary air purification automotive interior acoustic wool according to claim 1, wherein the inorganic bicomponent cotton layer (11) is provided as one of carbon fiber/graphene bicomponent cotton, glass fiber/metal fiber bicomponent cotton, slag cotton fiber/ceramic fiber bicomponent cotton, basalt fiber/activated carbon fiber bicomponent cotton.
9. A preparation method of high-elasticity auxiliary air purification sound-absorbing cotton for automotive interiors is characterized by comprising the following steps:
s1, forming: the method comprises the steps that a high-elasticity supporting layer (1) and an elastic porous net layer (2) which are obtained through die casting and an aluminum alloy net rack (3) inserted into the high-elasticity supporting layer (1) are poured, a porous net connection permanent magnet (4), a supporting layer connection permanent magnet (5) and a penetrating column connection permanent magnet (7) are added in a pouring die in advance to be embedded in the high-elasticity supporting layer (1) and the elastic porous net layer (2) respectively, trimming and polishing are carried out on the obtained high-elasticity supporting layer (1) and the elastic porous net layer (2), and an installation groove (16) and a jack for inserting the aluminum alloy net rack (3) are obtained;
s2, hot pressing: repeatedly hot-pressing the materials to an organic bi-component cotton layer (9), a microporous non-woven fabric layer (10), an inorganic bi-component cotton layer (11), a foamed plastic sound insulation layer (12) and a brake pad slag material layer (14) by a mould press at the temperature of 80-150 ℃ until the materials of all the layers are firmly adhered without cracking, the surface is not convex, and the whole body is flat;
s3, filling: an air purification layer (8), an organic bi-component cotton layer (9), a microporous non-woven fabric layer (10), an inorganic bi-component cotton layer (11), a foam plastic sound insulation layer (12), an air cleaning layer (13) and a brake pad slag material layer (14) are correspondingly filled in an upper side cavity formed by a high-elasticity supporting layer (1) and an elastic porous net layer (2), and the middle part of each layer is provided with a through hole which is arranged on the elastic porous net layer (2) and penetrates through a connecting column (6);
s4, assembling: the elastic porous net layer (2) is connected with the permanent magnet (4) through the porous net, the supporting layer is connected with the permanent magnet (5), the penetrating column is connected with the permanent magnet (7) and the high-elasticity supporting layer (1) to be fixed and connected, the same operation is carried out on the lower side of the high-elasticity supporting layer (1) after the elastic porous net layer is turned over, the aluminum alloy net racks (3) on the upper side and the lower side of the high-elasticity supporting layer (1) are inserted into corresponding jacks, and the sound insulation cotton is integrally polished and trimmed again to obtain the interior sound absorption cotton.
CN202210768040.5A 2022-06-30 2022-06-30 High-elasticity sound-absorbing cotton assisting air purification for automotive interior and preparation method thereof Pending CN114919512A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532040A (en) * 2022-08-30 2022-12-30 金发科技股份有限公司 Efficient low-resistance waste gas washing device and waste gas washing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115532040A (en) * 2022-08-30 2022-12-30 金发科技股份有限公司 Efficient low-resistance waste gas washing device and waste gas washing method

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