CN115320195A - Environment-friendly regenerative sound-insulation filter cotton for automotive interior and preparation method thereof - Google Patents

Environment-friendly regenerative sound-insulation filter cotton for automotive interior and preparation method thereof Download PDF

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Publication number
CN115320195A
CN115320195A CN202210965725.9A CN202210965725A CN115320195A CN 115320195 A CN115320195 A CN 115320195A CN 202210965725 A CN202210965725 A CN 202210965725A CN 115320195 A CN115320195 A CN 115320195A
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fiber
regenerated
graphene
regenerative
rare earth
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潘建新
张陆贤
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Guangde Tianyun New Technology Co ltd
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Guangde Tianyun New Technology Co ltd
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Priority to CN202210965725.9A priority Critical patent/CN115320195A/en
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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Abstract

The invention provides environment-friendly regenerative sound-insulation filter cotton for automotive interiors and a preparation method thereof. The high-elasticity damping vibration attenuation sheet is used as a base material and is wrapped by the multi-empty non-woven pad taking the regenerated cotton fiber as the main body, so that the high elasticity, the high sound insulation and the high filtering property of the base material are improved, the noise blocking and absorbing and filtering effects are greatly improved, and the high-elasticity damping vibration attenuation sheet has excellent market application value.

Description

Environment-friendly regenerative sound-insulation filter cotton for automotive interior and preparation method thereof
Technical Field
The invention relates to the technical field of sound insulation filter cotton manufacturing, in particular to environment-friendly regenerative sound insulation filter cotton for automotive interior and a preparation method thereof.
Background
The sound insulation of an automobile is to finely process engine noise generated from the automobile, resonance sound generated from vibration of tires and a road surface, friction sound generated from a gap or aged pressing force of components in a vehicle compartment, and the like according to the performance of the automobile, a corresponding road condition, and a use condition, so as to improve the riding comfort of the automobile. The most effective sound insulation method at present is to add sound insulation pads at key parts of the automobile, so that the automobile not only can insulate sound, but also can play a role in heat insulation and dust insulation. However, most of the sound insulation pads used in the automobile at present are common rubber pads, and although the sound insulation effect can be achieved, the sound insulation pads do not have a good sound absorption effect, and the good sound absorption effect can eliminate the resonance of the metal of the automobile, so that the audio environment in the automobile is more excellent.
The automobile sound insulation pad can be applied to various parts such as an automobile engine compartment, a passenger compartment, a trunk and the like, has the characteristics of shock absorption, sound absorption, heat insulation and the like, and in the times of pursuing high performance, environmental friendliness, light weight and comfort, the automobile interior as well as the appearance of an automobile become an important factor for people to select automobiles, so that the requirement on automobile interior parts is higher and higher. At present, the automobile sound insulation pad mainly takes regenerated fiber felt and PU foaming material as main materials. The existing fiber felt sound insulation pad mainly has the following problems:
1. the phenolic resin reinforced fiber felt has a large smell and is easy to pollute the environment;
2. the fiber felt is exposed, so that the standard exceeding of Volatile Organic Compounds (VOC) is easily caused, and the odor cannot meet the technical requirement of a main engine plant;
3. the toughness of the finish coat is insufficient;
4. the sound insulation effect is not good.
Therefore, the development of the environment-friendly regenerative sound insulation filter cotton for the automotive interior and the preparation method thereof are particularly important.
Disclosure of Invention
In order to solve the technical problems, the invention provides the environment-friendly regenerative sound-insulation filter cotton which takes the regenerative fiber cotton as a main body, can effectively insulate sound and filter, has vibration-damping buffering high elasticity and is used for automotive interior and the preparation method thereof.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides an automotive interior is with environmental protection regeneration type sound insulation filter cotton, it sets up to damping vibration attenuation piece including setting up at the middle part, the both sides of damping vibration attenuation piece are provided with porous non-woven liner, the both sides of porous non-woven liner are provided with regeneration PVC plastic cloth, regeneration PVC plastic cloth's both sides are provided with honeycomb elastic resin net, the aluminium alloy silk thread has been alternate in the honeycomb elastic resin net, the aluminium alloy silk thread runs through damping vibration attenuation piece, porous non-woven liner, regeneration PVC plastic cloth and honeycomb elastic resin net carry out fixed connection, the outside of honeycomb elastic resin net is provided with regeneration cotton fiber cloth, the aluminium alloy silk thread runs through regeneration cotton fiber cloth and carries out the banding to filtering soundproof cotton.
Preferably, the porous nonwoven fabric mat comprises the following components in percentage by weight: 30-45% of regenerated cotton short fiber, 30-40% of rare earth-graphene composite modified synthetic epoxy resin, 5-15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5-10% of graphene modified polyimide ultrashort fiber, 5-10% of ceramic ultrashort fiber, 2-5% of organic rare earth and 2-5% of graphene oxide.
Preferably, the rare earth-graphene composite modified synthetic epoxy resin comprises the following components in percentage by weight: 30-45% of hydantoin epoxy resin, 10-15% of liquid butyronitrile, 20-30% of acetone, 5-15% of superfine melamine dispersion powder, 3-8% of graphene oxide, 3-6% of organic rare earth, caO, feO (OH), tiO 2 2-4% of citric acid tri-n-butyl ester, 1-3% of maleic acid di-n-octyl tin, 1-3% of ethoxylated alkylamine, 2-5% of aluminum oxalate and 10-25% of filler.
Preferably, the fillers comprise 30-45% of nano rare earth modified porous silica aerogel, 30-45% of ceramic fiber micropowder, 10-15% of zirconium composite silica micropowder, 10-15% of vermiculite micropowder and 5-15% of cryolite micropowder.
Preferably, the damping vibration attenuation sheet comprises the following components in percentage: 30-55% of recycled butyl rubber, 5-15% of graphene modified ultra-high molecular weight polyethylene fiber, 5-10% of graphene modified poly (m-phenylene isophthalamide) fiber, 2-5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 2-3% of organic rare earth, 2.5-10% of graphene oxide, 1-2.5% of zinc stearate and 30-45% of nano inorganic hollow microspheres.
Preferably, the regenerated PVC plastic cloth comprises the following components in percentage by weight: 40-55% of regenerated polyvinyl chloride plastic, 5-15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5-10% of graphene modified polyimide ultrashort fiber, 2-5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 2-3% of organic rare earth, 2.5-10% of graphene oxide, caO, feO, tiO 2 2-4.5 percent of the nano inorganic hollow microsphere, 1-2.5 percent of tri-n-butyl citrate, 1-2.5 percent of di-n-octyl tin maleate, 1-2.5 percent of ethoxylated alkylamine, 1-5 percent of aluminum oxalate and 10-25 percent of the nano inorganic hollow microsphere.
Preferably, the aluminum alloy wire comprises the following elements in percentage by mass: 0.3-1.2% of nano Si, 0.3-0.6% of Mn, 0.05-0.10% of Mo, 0.03-0.09% of Nd, 0.05-0.09% of V, 0.02-0.03% of Sc, 0.03-0.07% of La, 0.4-0.9% of Cu, 0.2-0.5% of Zn, 0.3-0.6% of Cr, 0.5-1.5% of Fe, 0.02-0.05% of Ru, 1.5-3.0% of a mixture of graphene and carbon nano tubes, 0.2-0.6% of aluminum alloy inoculant, 15.0-20.0% of Ti and the balance of Al.
The preparation method of the environment-friendly regenerative sound insulation filter cotton for the automotive interior comprises the following steps:
s1, manufacturing a damping fin: uniformly mixing raw materials of the damping vibration reduction sheet, transferring the raw materials into a kneading machine, setting the kneading temperature to be 150-180 ℃, kneading time to be 20-35min, passing the raw materials through a 100-200 mesh screen after kneading, transferring the raw materials into the kneading machine, setting the kneading temperature to be 160-220 ℃, the kneading time to be 15-250min, transferring the raw materials into an extruder when the raw materials are hot after the kneading is finished, setting the extrusion temperature of the extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding to obtain a semi-solid product, and hot-pressing the semi-solid product into sheets at the temperature of 150-250 ℃;
s2, manufacturing a liner: accurately weighing raw materials for forming the porous non-woven pad according to percentage, uniformly mixing the graphene oxide modified poly-p-phenylene benzobisoxazole ultrashort fiber, graphene modified polyimide ultrashort fiber, ceramic ultrashort fiber, organic rare earth and graphene oxide, then crushing, adding regenerated cotton short fiber, secondarily mixing and uniformly dispersing, adding liquid rare earth-graphene composite modified synthetic epoxy resin, stirring in an environment of 80-150 ℃ until the mixture is uniform, and then carrying out porous bonding water-cooling curing forming in a mold;
s3, manufacturing plastic cloth: crushing solid materials for forming the regenerated PVC plastic cloth, adding organic materials into a stirring kettle, uniformly mixing, continuously adding super short fibers, stirring until all raw materials are uniformly mixed, transferring the mixture into a kneading machine, setting the kneading temperature to be 150-180 ℃, the kneading time to be 20-35min, transferring the mixture into a mixing roll, setting the mixing temperature to be 160-220 ℃, the mixing time to be 15-250min, setting the extrusion temperature of an extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding the mixed materials into silk threads, and carrying out electrostatic spinning to obtain the plastic cloth;
s4, inserting alloy wires: hot-pressing the elastic resin sheet at 150-200 deg.C to obtain honeycomb elastic resin net, adhering porous non-woven pad on two sides of damping vibration-damping sheet, regenerated PVC plastic cloth on two sides of porous non-woven pad, and honeycomb elastic resin net on two sides of regenerated PVC plastic cloth;
penetrating and sewing the regenerated PVC plastic cloth, the porous non-woven liner and the damping vibration attenuation sheet through meshes of the honeycomb elastic resin net by using an aluminum alloy wire, so that the damping vibration attenuation sheet, the porous non-woven liner, the regenerated PVC plastic cloth and the honeycomb elastic resin net are tightly attached and connected;
s5, silk thread edge sealing: and (4) cutting the multilayer structure obtained in the step (4) into a proper size and shape after being attached to the regenerated cotton fiber cloth, penetrating the aluminum alloy threads through the regenerated cotton fiber cloth on the two sides and sealing the multilayer structure, ensuring that the regenerated cotton fiber cloth is closely attached to the multilayer structure, and embedding the thread ends of the aluminum alloy threads in the multilayer structure inside the sound insulation filter cotton.
The invention has the beneficial effects that: the invention takes the high-elasticity damping vibration attenuation sheet as a base material, and is wrapped by the multi-hollow non-woven liner taking the regenerated cotton fiber as the main body, so that the high elasticity, the high sound insulation and the high filtration of the base material are improved, the regenerated PVC cloth and the elastic resin net are covered on the surface of the base material, and the regenerated cotton fiber cloth is used for sealing the edge of the outermost layer for wrapping, so that the environment-friendly regeneration recycling is realized for the automotive interior, the noise blocking and absorbing and filtering effects are greatly improved, the single performance of the conventional sound insulation filter cotton is broken through by modifying the component materials from inside to outside, the multi-functionalization of the novel sound insulation filter cotton is realized, the properties of the novel sound insulation filter cotton are obviously improved, the high flexibility, the high elasticity, the high sound insulation, the high filtration and the high strength are endowed, the requirements of various automotive interiors can be met, and the market application value and the prospect are excellent.
Drawings
Fig. 1 is a schematic cross-sectional view illustrating the environmentally friendly recycled soundproof filter pad for automotive interior according to the present invention.
In the figure: 1. damping vibration damping sheets; 2. a porous nonwoven mat; 3. regenerating PVC plastic cloth; 4. a honeycomb elastic resin net; 5. an aluminum alloy wire; 6. regenerated cotton fiber cloth.
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 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.
Example 1
Referring to fig. 1, an environment-friendly regenerative soundproof filter cotton for automotive interiors comprises a damping vibration reduction sheet 1 arranged in the middle of the automobile interiors, porous nonwoven liners 2 arranged on two sides of the damping vibration reduction sheet 1, regenerative PVC plastic cloths 3 arranged on two sides of the porous nonwoven liners 2, honeycomb elastic resin nets 4 arranged on two sides of the regenerative PVC plastic cloths 3, aluminum alloy wires 5 inserted into the honeycomb elastic resin nets 4, the aluminum alloy wires 5 penetrating through the damping vibration reduction sheet 1, the porous nonwoven liners 2, the regenerative PVC plastic cloths 3 and the honeycomb elastic resin nets 4 for fixed connection, a regenerative cotton fiber cloth 6 arranged on the outer side of the honeycomb elastic resin nets 4, and the aluminum alloy wires 5 penetrating through the regenerative cotton fiber cloth 6 for edge sealing of the soundproof filter cotton.
Referring to fig. 1, a damping vibration-damping sheet 1 of an environmentally friendly regenerative sound-insulation filter cotton for automotive interior comprises the following components by weight: and then 50% of butyl rubber, 5% of graphene modified ultra-high molecular weight polyethylene fiber, 5% of graphene modified poly (m-phenylene isophthalamide) fiber, 3% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 2% of organic rare earth, 2.5% of graphene oxide, 2.5% of zinc stearate and 30% of nano inorganic hollow microspheres are recovered.
Referring to fig. 1, a porous nonwoven pad 2 of an environmentally friendly regenerative soundproof filter cotton for automotive interiors comprises the following components by weight: 45% of regenerated cotton short fiber, 35% of rare earth-graphene composite modified synthetic epoxy resin, 5% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5% of graphene modified polyimide ultrashort fiber, 5% of ceramic ultrashort fiber, 3% of organic rare earth and 2% of graphene oxide.
Referring to fig. 1, a recycled PVC plastic cloth 3 of an environmentally friendly recycled sound-insulation filter cotton for automotive interiors comprises the following components by weight percent: 55% of regenerated polyvinyl chloride plastic, 5% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5% of graphene modified polyimide ultrashort fiber, 5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 3% of organic rare earth, 2.5% of graphene oxide, caO, feO, tiO 2 2 percent of citric acid tri-n-butyl ester, 1 percent of maleic acid di-n-octyl tin, 2.5 percent of ethoxylated alkylamine, 3 percent of aluminum oxalate and 15 percent of nano inorganic hollow microsphere.
Referring to fig. 1, an environment-friendly regenerative soundproof filter cotton for automotive interiors comprises the following elements in percentage by mass in an aluminum alloy wire 5: 0.3% of nano Si, 0.3% of Mn, 0.05% of Mo, 0.03% of Nd, 0.05% of V, 0.02% of Sc, 0.03% of La, 0.4% of Cu, 0.2% of Zn, 0.3% of Cr, 0.5% of Fe, 0.02% of Ru, 1.5% of a mixture of graphene and carbon nanotubes, 0.2% of aluminum alloy inoculant, 15.0% of Ti and the balance of Al.
Further, the rare earth-graphene composite modified synthetic epoxy resin comprises the following components in percentage by weight: 35% of hydantoin epoxy resin, 10% of liquid butyronitrile, 20% of acetone, 5% of superfine melamine dispersion powder, 3% of graphene oxide, 3% of organic rare earth, and CaO & FeO (OH) & TiO 2 2 percent of citric acid tri-n-butyl ester, 2 percent of maleic acid di-n-octyl tin, 3 percent of ethoxylated alkylamine, 5 percent of aluminum oxalate and 10 percent of filling material.
Further, the filler is 30% of nano rare earth modified porous silica aerogel, 30% of ceramic fiber micropowder, 15% of zirconium composite silica micropowder, 15% of vermiculite micropowder and 10% of cryolite micropowder.
Example 2
The present embodiment is different from embodiment 1 in that:
the damping vibration attenuation sheet 1 comprises the following components in percentage: and then recovering 32% of butyl rubber, 15% of graphene modified ultra-high molecular weight polyethylene fiber, 10% of graphene modified poly (m-phenylene isophthalamide) fiber, 5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 3% of organic rare earth, 2.5% of graphene oxide, 2.5% of zinc stearate and 30% of nano inorganic hollow microspheres.
The porous nonwoven fabric mat 2 comprises the following components in percentage by weight: 30% of regenerated cotton short fiber, 30% of rare earth-graphene composite modified synthetic epoxy resin, 15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 10% of graphene modified polyimide ultrashort fiber, 10% of ceramic ultrashort fiber, 2% of organic rare earth and 3% of graphene oxide.
The regenerated PVC plastic cloth 3 comprises the following components in percentage by weight: 40% of regenerated polyvinyl chloride plastic, 15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 10% of graphene modified polyimide ultrashort fiber and 4,4' -bis (2)5% of 2-dimethylbenzyl) diphenylamine, 3% of organic rare earth, 2.5% of graphene oxide, caO, feO and TiO 2 2 percent of citric acid tri-n-butyl ester, 1 percent of maleic acid di-n-octyl tin, 1 percent of ethoxylated alkylamine, 1 percent of aluminum oxalate and 18.5 percent of nano inorganic hollow microsphere.
The aluminum alloy wire 5 comprises the following elements in percentage by mass: 1.2% of nano Si, 0.6% of Mn, 00.10% of Mo, 0.09% of Nd, 0.09% of V, 0.03% of Sc, 0.07% of La, 0.9% of Cu, 0.5% of Zn, 0.6% of Cr, 1.5% of Fe, 0.05% of Ru, 1.5% of a mixture of graphene and a carbon nanotube, 0.2% of aluminum alloy inoculant, 15.0% of Ti and the balance of Al.
The rare earth-graphene composite modified synthetic epoxy resin comprises the following components in percentage by weight: 30% of hydantoin epoxy resin, 10% of liquid butyronitrile, 20% of acetone, 10% of superfine melamine dispersion powder, 4% of graphene oxide, 3% of organic rare earth, caO, feO (OH) and TiO 2 3 percent of citric acid tri-n-butyl ester, 2 percent of maleic acid di-n-octyl tin, 2 percent of ethoxylated alkylamine, 4 percent of aluminum oxalate and 10 percent of filling material.
The filler is 45% of nano rare earth modified porous silica aerogel, 30% of ceramic fiber micro powder, 10% of zirconium composite silicon micro powder, 10% of vermiculite micro powder and 5% of cryolite micro powder.
The preparation method of the environment-friendly regenerative sound insulation filter cotton for the automotive interior comprises the following steps:
s1, manufacturing a damping fin: uniformly mixing the raw materials of the damping vibration reduction sheet 1, transferring the mixture into a kneading machine, setting the kneading temperature to be 150-180 ℃, kneading time to be 20-35min, passing the raw materials through a 100-200 mesh screen after kneading, transferring the raw materials into the kneading machine, setting the kneading temperature to be 160-220 ℃, the kneading time to be 15-250min, transferring the raw materials into an extruder when the raw materials are hot after the kneading is finished, setting the extrusion temperature of the extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding to obtain a semi-solid product, and hot-pressing the product at 150-250 ℃ to form sheets;
s2, manufacturing a liner: accurately weighing raw materials for forming the porous non-woven liner 2 according to percentage, uniformly mixing the graphene oxide modified poly-p-phenylene benzobisoxazole ultrashort fiber, graphene modified polyimide ultrashort fiber, ceramic ultrashort fiber, organic rare earth and graphene oxide, then crushing, adding the regenerated cotton short fiber, secondarily mixing and uniformly dispersing, adding liquid rare earth-graphene composite modified synthetic epoxy resin, stirring in an environment of 80-150 ℃ until the mixture is uniform, and then carrying out porous bonding water-cooling curing forming in a mold;
s3, manufacturing plastic cloth: crushing solid materials forming the regenerated PVC plastic cloth 3, adding organic materials into a stirring kettle, uniformly mixing, continuously adding super short fibers, uniformly mixing all the raw materials, transferring into a kneading machine, setting the kneading temperature to be 150-180 ℃, the kneading time to be 20-35min, transferring into a mixing roll, setting the mixing temperature to be 160-220 ℃, the mixing time to be 15-250min, setting the extrusion temperature of an extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding the mixed materials into silk threads, and carrying out electrostatic spinning to obtain the plastic cloth;
s4, inserting alloy wires: hot-pressing the elastic resin sheet at 150-200 ℃ to obtain a honeycomb elastic resin net 4, firstly attaching the porous non-woven pad 2 to two sides of the damping vibration-damping sheet 1, attaching the regenerated PVC plastic cloth 3 to two sides of the porous non-woven pad 2, and attaching the honeycomb elastic resin net 4 to two sides of the regenerated PVC plastic cloth 3;
penetrating and sewing the regenerated PVC plastic cloth 3, the porous non-woven liner 2 and the damping vibration attenuation sheet 1 through the aluminum alloy wires 5 from meshes of the honeycomb elastic resin net 4, so that the damping vibration attenuation sheet 1, the porous non-woven liner 2, the regenerated PVC plastic cloth 3 and the honeycomb elastic resin net 4 are tightly attached and connected;
s5, silk thread edge sealing: and (5) cutting the multilayer structure obtained in the step (4) into a proper size and shape after being attached to the regenerated cotton fiber cloth 6, penetrating the aluminum alloy gold thread 5 through the regenerated cotton fiber cloth 6 on two sides, sealing edges of the multilayer structure, ensuring that the regenerated cotton fiber cloth 6 is closely attached to the multilayer structure, and embedding the thread end of the aluminum alloy gold thread 5 in the multilayer structure inside the sound insulation filter cotton.
According to the invention, the high-elasticity damping vibration attenuation sheet is used as a base material and is wrapped by the multi-hollow non-woven liner taking the regenerated cotton fiber as a main body, so that the high elasticity, high sound insulation and high filtering performance of the base material are improved, the regenerated PVC cloth and the elastic resin net are covered on the surface of the base material, and the regenerated cotton fiber cloth is subjected to edge sealing wrapping on the outermost layer to be used for automotive interior trim so as to realize environment-friendly regeneration recycling, so that the noise blocking and absorbing and filtering effects of the base material are greatly improved, the single performance of the conventional sound insulation filter cotton is broken through modifying the component materials from inside to outside, the multifunction of the novel sound insulation filter cotton is realized, the properties of the novel sound insulation filter cotton are remarkably improved, the high flexibility, the high elasticity, the high sound insulation, the high filtering performance and the high strength are endowed, the requirements of various automotive interiors can be met, and the market application value and the prospect are excellent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (7)

1. The environment-friendly regenerative sound-insulation filter cotton for the automotive interior is characterized by comprising a damping vibration-damping sheet (1) arranged in the middle of the automobile interior, porous non-woven liners (2) arranged on two sides of the damping vibration-damping sheet (1), regenerative PVC plastic cloths (3) arranged on two sides of the porous non-woven liners (2), honeycomb elastic resin nets (4) arranged on two sides of the regenerative PVC plastic cloths (3), aluminum alloy wires (5) are inserted into the honeycomb elastic resin nets (4) in a penetrating manner, the aluminum alloy wires (5) penetrate through the damping vibration-damping sheet (1), the porous non-woven liners (2), the regenerative PVC plastic cloths (3) and the honeycomb elastic resin nets (4) to be fixedly connected, regenerative cotton fiber cloth (6) is arranged on the outer side of the honeycomb elastic resin nets (4), and the aluminum alloy wires (5) penetrate through the regenerative cotton fiber cloth (6) to seal edges of the sound-insulation filter cotton;
the porous non-woven liner (2) comprises the following components in percentage by weight: 30-45% of regenerated cotton short fiber, 30-40% of rare earth-graphene composite modified synthetic epoxy resin, 5-15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5-10% of graphene modified polyimide ultrashort fiber, 5-10% of ceramic ultrashort fiber, 2-5% of organic rare earth and 2-5% of graphene oxide.
2. The environment-friendly regenerative sound insulation filter cotton for the automotive interiors according to claim 1, wherein the rare earth-graphene composite modified synthetic epoxy resin comprises the following components in percentage by weight: 30-45% of hydantoin epoxy resin, 10-15% of liquid butyronitrile, 20-30% of acetone, 5-15% of superfine melamine dispersion powder, 3-8% of graphene oxide, 3-6% of organic rare earth, caO, feO (OH), tiO 2 2-4% of citric acid tri-n-butyl ester, 1-3% of maleic acid di-n-octyl tin, 1-3% of ethoxylated alkylamine, 2-5% of aluminum oxalate and 10-25% of filler.
3. The environment-friendly regenerative soundproof filter cotton for automotive interiors according to claim 2, wherein the filler is 30-45% of nano rare earth modified porous silica aerogel, 30-45% of ceramic fiber micropowder, 10-15% of zirconium composite silica micropowder, 10-15% of vermiculite micropowder and 5-15% of cryolite micropowder.
4. The environment-friendly regenerative soundproof filter cotton for automotive interiors according to claim 1, wherein the damping vibration-damping sheet (1) comprises the following components in percentage: 30-55% of recycled butyl rubber, 5-15% of graphene modified ultra-high molecular weight polyethylene fiber, 5-10% of graphene modified poly (m-phenylene isophthalamide) fiber, 2-5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine, 2-3% of organic rare earth, 2.5-10% of graphene oxide, 1-2.5% of zinc stearate and 30-45% of nano inorganic hollow microspheres.
5. The environment-friendly regenerative sound insulation filter cotton for automotive interiors according to claim 1, wherein the regenerative PVC plastic cloth (3) comprises the following components in percentage by weight: 40-55% of regenerated polyvinyl chloride plastic, 5-15% of graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, 5-10% of graphene modified polyimide ultrashort fiber and 2-5% of 4,4' -bis (2, 2-dimethylbenzyl) diphenylamine2 to 3 percent of organic rare earth, 2.5 to 10 percent of graphene oxide, caO, feO and TiO 2 2-4.5 percent of the nano inorganic hollow microsphere, 1-2.5 percent of tri-n-butyl citrate, 1-2.5 percent of di-n-octyl tin maleate, 1-2.5 percent of ethoxylated alkylamine, 1-5 percent of aluminum oxalate and 10-25 percent of the nano inorganic hollow microsphere.
6. The environment-friendly regenerative sound-insulation filter cotton for automotive interiors according to claim 1, wherein the aluminum alloy wire (5) comprises the following elements in percentage by mass: 0.3-1.2% of nano Si, 0.3-0.6% of Mn, 0.05-0.10% of Mo0.03-0.09% of Nd0.03-0.09%, 0.05-0.09% of V, 0.02-0.03% of Sc0.03%, 0.03-0.07% of La0.4-0.9% of Cu, 0.2-0.5% of Zn0.3-0.6% of Cr0.3-0.6% of Fe, 0.5-1.5% of Ru0.02-0.05% of mixture of graphene and carbon nano tubes, 0.2-0.6% of aluminum alloy inoculant, 15.0-20.0% of Ti and the balance of Al.
7. The preparation method of the environment-friendly regenerative soundproof filter cotton for automotive interiors, as claimed in claim 1, is characterized by comprising the following steps:
s1, manufacturing a damping fin: uniformly mixing the raw materials of the damping vibration reduction sheet (1), transferring the mixture into a kneading machine, setting the kneading temperature to be 150-180 ℃, kneading time to be 20-35min, passing the raw materials through a 100-200-mesh screen after kneading, transferring the raw materials into the kneading machine, setting the kneading temperature to be 160-220 ℃, the kneading time to be 15-250min, transferring the raw materials into an extruder when the raw materials are hot after the kneading is finished, setting the extrusion temperature of the extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding to obtain a semi-solid product, and hot-pressing the product into sheets at 150-250 ℃;
s2, manufacturing a liner: accurately weighing raw materials for forming the porous non-woven gasket (2) according to percentage, uniformly mixing the oxygen graphene modified poly-p-phenylene benzobisoxazole ultrashort fiber, the graphene modified polyimide ultrashort fiber, the ceramic ultrashort fiber, the organic rare earth and the graphene oxide, then crushing, adding the regenerated cotton short fiber, secondarily mixing and uniformly dispersing, adding the liquid rare earth-graphene composite modified synthetic epoxy resin, stirring in an environment of 80-150 ℃ until the mixture is uniform, and then carrying out porous bonding water-cooling curing molding in a mold;
s3, manufacturing plastic cloth: crushing solid materials forming the regenerated PVC plastic cloth (3), adding organic materials into a stirring kettle, uniformly mixing, continuously adding super short fibers, uniformly stirring until all raw materials are uniformly mixed, transferring the mixture into a kneading machine, setting the kneading temperature to be 150-180 ℃, the kneading time to be 20-35min, transferring the mixture into a mixing roll, setting the mixing temperature to be 160-220 ℃, the mixing time to be 15-250min, setting the extrusion temperature of an extruder to be 80-150 ℃, setting the extrusion speed to be 80-200cm/min, extruding the mixed materials into silk threads, and carrying out electrostatic spinning to obtain the plastic cloth;
s4, inserting an alloy wire: hot-pressing an elastic resin sheet at 150-200 ℃ to obtain a honeycomb elastic resin net (4), firstly attaching a porous non-woven pad (2) to two sides of a damping vibration attenuation sheet (1), attaching a regenerated PVC plastic cloth (3) to two sides of the porous non-woven pad (2), and attaching the honeycomb elastic resin net (4) to two sides of the regenerated PVC plastic cloth (3);
penetrating and sewing the regenerated PVC plastic cloth (3), the porous non-woven liner (2) and the damping vibration attenuation sheet (1) through mesh holes of the honeycomb elastic resin net (4) by using an aluminum alloy gold wire (5) to ensure that the damping vibration attenuation sheet (1), the porous non-woven liner (2), the regenerated PVC plastic cloth (3) and the honeycomb elastic resin net (4) are tightly attached and connected;
s5, silk thread edge sealing: and (5) cutting the multilayer structure obtained in the step (4) into a proper size and shape after being attached to the regenerated cotton fiber cloth (6), penetrating the aluminum alloy gold threads (5) through the regenerated cotton fiber cloth (6) on two sides, sealing edges of the multilayer structure, ensuring that the regenerated cotton fiber cloth (6) is closely attached to the multilayer structure, and embedding the thread ends of the aluminum alloy gold threads (5) in the multilayer structure inside the sound insulation filter cotton.
CN202210965725.9A 2022-08-12 2022-08-12 Environment-friendly regenerative sound-insulation filter cotton for automotive interior and preparation method thereof Pending CN115320195A (en)

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CN203736751U (en) * 2014-01-16 2014-07-30 王立刚 Fire blanket
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