CN114290761B - Multifunctional automobile roof fiber covering piece and preparation method thereof - Google Patents
Multifunctional automobile roof fiber covering piece and preparation method thereof Download PDFInfo
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Abstract
The invention provides a multifunctional automobile roof fiber covering piece and a preparation method thereof. According to the invention, the composite inorganic powder is used as a base layer, the metal fibers are wrapped on the surface of the base layer, the elastic material is attached to the surface of the base layer, the elasticity of the inner layer of the sound insulation pad is ensured, the effective heat conduction and the heat dissipation of an automobile ceiling are realized, the materials such as an elastic honeycomb net, waste textile fibers, bi-component cotton and the like with strong sound absorption and sound insulation are wrapped for strong sound absorption and sound insulation, the use effect of the sound insulation pad is ensured, the covering piece is subjected to edge sealing and edge wrapping through the aluminum foil, the heat dissipation rod penetrates through the covering piece, the heat in the covering piece can be timely conducted out, the heat deformation and burst of the automobile ceiling and the covering piece are avoided, and the sound absorption and sound insulation effect of the prepared covering piece is greatly improved.
Description
Technical Field
The invention relates to the technical field of sound absorption and insulation material manufacturing, in particular to a multifunctional automobile roof fiber covering piece and a preparation method thereof.
Background
With the increasing development of economy and the improvement of the living standard of people, the consumption concept is updated continuously, and higher requirements are also provided for comfort and quietness of the automobile driving environment, so that the noise reduction, heat insulation and flame retardance of the automobile interior material are particularly important. The sound absorption and noise reduction and heat insulation treatment of the automobile by selecting proper materials are also one of the basic technical measures commonly used in the current automobile manufacturing control engineering.
Since the end of the last century, the textile industry has been rapidly developing, and the textile life cycle has been greatly shortened, which has led to a rapid increase in textile throughput and consumption, and the amount of waste textiles and scrap produced during the production process has been rapidly increased, and the consumption of a large amount of textiles has also revealed the problem of insufficient textile materials. The waste textile clothing products and the textile leftover materials are directly discarded, which not only wastes resources but also pollutes the environment, so that the high-value utilization of the waste textile clothing and the leftover materials has great significance in solving the problems of lack of fiber raw materials and environmental protection.
The existing sound and heat insulation interior decoration materials in the market at present mainly comprise: polyurethane foam, rigid polyethylene foam PEF, i.e. rubber-like foam, polystyrene foam, centrifugal glass wool, rock wool, foam glass, etc. The sound-proof and heat-insulating materials have excellent heat-insulating effect, but are combustible, and release toxic and dense smoke during combustion, which is harmful to the environment and has higher cost, such as rigid polyurethane foam; some are not flammable, but may generate fine fibers during the production process, which are harmful to the human body. At present, a plurality of researches on preparing novel sound-insulation and heat-insulation interior decoration materials by using non-woven fabrics, aerogel and other technologies are carried out, and the heat-insulation and heat-insulation materials prepared by the methods have good sound-insulation and heat-insulation effects due to the performances of porosity, low density and the like. However, the aerogel of the aerogel sound-proof and heat-proof interior material is easy to shrink and crack in the preparation process, so that the aerogel material has low strength and poor mechanical property, and the development and application of the aerogel heat-proof and heat-proof material are affected. Thus, the preparation of sound and heat insulating materials using a nonwoven process is a simple and cost effective way.
Disclosure of Invention
In order to solve the technical problems, the invention provides the multifunctional automobile ceiling fiber covering piece and the preparation method thereof, wherein the inorganic powder with heat conduction and heat transfer, the bi-component cotton with sound insulation function and other sound insulation and noise reduction fiber materials are combined, so that the effects of heat dissipation, shock absorption, sound absorption and sound insulation are effectively realized.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the multifunctional automobile roof fiber covering piece comprises a metal fiber base layer which is arranged in the middle and serves as a shaping bracket, a composite inorganic powder layer is wrapped in the metal fiber base layer, elastic connection supporting ribs are arranged between two surfaces of the composite inorganic powder layer wrapped in the metal fiber base layer, elastic plate layers are arranged on the upper outer side and the lower outer side of the metal fiber base layer, an elastic honeycomb net layer is arranged on the upper side of the elastic plate layer, a bi-component cotton layer is arranged on the lower side of the elastic plate layer on the lower side, waste textile fiber layers are arranged on the outer sides of the bi-component cotton layer and the elastic honeycomb net layer, the fiber covering piece is arranged on the outer sides of the waste textile fiber layers and is attached to two sides of the fiber covering piece, and double-side wrapping is formed on an inner multi-layer structure; the aluminum foil sealing edges are arranged at the outer peripheral side sealing edges of the layers of the fiber covering piece, the through radiating rod is arranged inside the aluminum foil sealing edges, the through radiating rod penetrates through the composite inorganic powder layer, the metal fiber base layer, the elastic plate layer, the double-component cotton layer, the waste textile fiber layer, the elastic honeycomb net layer, the non-woven fabric layer and the aluminum foil sealing edges, heat conduction and heat dissipation are formed between the aluminum foil sealing edges and the composite inorganic powder layer and the metal fiber base layer, and the aluminum foil sealing edges are fixed on the non-woven fabric layer.
Preferably, the bicomponent cotton layer specifically comprises the following components: 50-70% of a component A and 30-60% of a component B; the component A comprises the following components: 35-50% of graphene modified polypropylene resin, 20-40% of modified high molecular weight butyl cellulose resin, 5-20% of modified high-toughness radiation-proof rubber fiber, 5-15% of carbon-based nanofiber, 0.5-1.5% of accelerator and 0.2-0.5% of dispersing agent; the component B comprises the following components: 30-50% of carbon nano tube modified polyurethane resin, 15-30% of modified polymethyl methacrylate, 5-15% of modified high molecular weight butyl cellulose resin, 3-8% of nano silver modified nano chitosan, 2-3% of carbon-based nano fiber, 0.5-1.5% of accelerator and 0.2-0.5% of dispersing agent; the carbon-based nanofiber specifically comprises the following components: 40-70% of graphene oxide, 20-40% of carbon fiber and 10-40% of carbon nanotube.
Preferably, the composite inorganic powder layer specifically comprises the following components: 40-60% of graphene oxide, 20-40% of aluminum alloy powder, 10-20% of ceramic fiber powder, 10-15% of special glass powder and 10-15% of mineral wool powder.
Preferably, the metal fiber base layer specifically comprises the following components: 40-70% of soft aluminum alloy fiber, 10-20% of soft copper alloy fiber, 10-20% of steel alloy fiber and 10-15% of titanium alloy fiber.
Preferably, the elastic plate layer and the elastic honeycomb net layer are made of the same material and are one of TPEE, TPV, TPU, POE, EPDM, EVA, ceramic silica gel and PVC soft gel.
Preferably, the waste textile fiber layer specifically comprises the following components: 20-40% of polypropylene fiber, 20-30% of polyester fiber, 10-20% of viscose fiber, 5-15% of fibrilia and 5-10% of cotton fiber.
Preferably, the elastic connection supporting rib is one of metal rubber, ceramic silica gel, PVC soft rubber and EPDM, EVA, TPO, TPV, TPS, TPA.
The preparation method of the multifunctional automobile roof fiber covering part comprises the following steps:
s1, pulverizing: uniformly mixing the raw materials of the composite inorganic powder layer, then carrying out secondary grinding, sieving with a 0.2-0.5mm sieve, then uniformly mixing again, compacting the powder layer through a specific die to obtain a thin layer with the thickness of 3-4mm, forming round holes or square holes on the thin layer, wherein the diameter of the round holes can be inserted into the round holes or square holes, the diameter of the round holes is larger than that of the elastic connection support ribs, the powder layer is ensured not to deform, fall off or crack, the elastic connection support ribs are inserted into the holes, and the length of the elastic connection support ribs is ensured to be larger than that of the composite inorganic powder layer;
s2, pressing: cutting each component fiber of the metal fiber base layer into short fibers of 1-5cm, uniformly mixing, performing high-pressure compression molding by a high-pressure molding machine, compressing the short fibers into a thin metal fiber layer of 1-1.5mm, polishing one side of the thin metal fiber layer to be smooth, sandwiching the composite inorganic powder layer 1 with the elastic connection supporting ribs 8 obtained in the step S1 between two thin metal fiber layers, compressing the composite layers with the smooth side facing inwards, and ensuring that the composite inorganic powder layer is not extruded after the elastic connection supporting ribs are flattened;
s3, forming: melting all the component raw materials of the elastic plate layer to form a melt, vertically placing the composite layer obtained in the step S2 in a specific die, pouring the melt into the die when the melt is cooled to be semi-solidified, rapidly cooling to solidify the melt without invading the metal fiber base layer, performing low-pressure lamination and trimming treatment on the elastic plate layer and the metal fiber base layer, wherein the thickness of the elastic plate layer is set to be 2-5mm;
s4, fixing: melting the raw materials of the bicomponent cotton layer, performing double-hole orthogonal electrostatic spinning melt-blowing to form a melt-blown bicomponent cotton layer, pressing the melt-blown bicomponent cotton layer while the melt-blown bicomponent cotton layer is hot to obtain a bicomponent cotton layer with the thickness of 2-5mm, coating an adhesive on one side of the bicomponent cotton layer after the bicomponent cotton layer is solidified and molded, and bonding the bicomponent cotton layer to the lower side of the composite layer obtained in the step S3;
melting the composition raw materials of the elastic honeycomb net layer to form a melt, pouring through a specific honeycomb hole die to form an elastic sheet with honeycomb holes, performing low-pressure pressing after staggered stacking of multiple layers of elastic sheets to obtain an elastic honeycomb net layer with the thickness of 2-5mm, and coating an adhesive on one side of the obtained elastic honeycomb net layer to adhere to the upper side of the composite layer obtained in the step S3;
s5, edge sealing: cutting the waste textile fiber layer into short fibers of 2-4cm, uniformly mixing, pressing and forming to form a waste textile fiber layer of 2-4mm, sequentially stacking the waste textile fiber layer and the non-woven fabric layer on the upper side and the lower side of the composite layer obtained in the step S4, performing high-pressure pressing and forming, performing non-woven fabric hot edge sealing at the same time, and wrapping the inner layer by non-woven fabric;
the cut aluminum foil edge sealing is stacked at the edge sealing position of the non-woven fabric layer with the heat sealing edge, the edge sealing is wrapped, the penetrating heat dissipation rod is inserted into the heat sealing position in a penetrating manner, and the heat dissipation rod and the aluminum foil edge sealing are pressed at high pressure again, so that the penetrating heat dissipation rod and the aluminum foil edge sealing are fixed, and all layers inside the fiber covering piece are free from position displacement and deformation, and the fiber covering piece can be obtained.
The invention has the beneficial effects that: according to the multifunctional automobile ceiling fiber covering part, the composite inorganic powder is used as a base layer, the metal fiber is wrapped on the surface of the base layer, the elastic material is attached to the surface of the base layer, the inner layer elasticity of the sound insulation pad is guaranteed, effective heat conduction and heat dissipation of an automobile ceiling are achieved, materials such as an elastic honeycomb net, waste textile fiber and bi-component cotton with strong sound absorption and sound insulation are wrapped for strong sound absorption and sound insulation, the using effect of the sound insulation pad is guaranteed, the covering part is edge-sealed and covered through aluminum foil, heat in the covering part can be timely conducted out through a heat dissipation rod, the automobile ceiling and the covering part are prevented from being deformed and burst due to heating, the sound absorption and sound insulation effect is greatly improved, the elasticity of the covering part is improved, no crack is generated in the using process, the waste fiber is reused, the material consumption and the production cost are reduced, the economic benefit is greatly improved, and the multifunctional automobile ceiling fiber covering part has good practicability, application prospect and value.
Drawings
Fig. 1 is a schematic cross-sectional structure of a multifunctional car roof fiber cover of the present invention, fig. 1.
Fig. 2 is a schematic cross-sectional structure of a multifunctional car roof fiber cover of the present invention, fig. 2.
In the figure: 1. a composite inorganic powder layer; 2. a metal fiber base layer; 3. an elastic plate layer; 4. a bicomponent cotton layer; 5. waste textile fiber layers; 6. an elastic cellular web layer; 7. a non-woven fabric layer; 8. the elastic connection support rib; 9. sealing edges of aluminum foil; 10. penetrating through the heat dissipation bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a multifunctional automobile roof fiber covering part comprises a metal fiber base layer 2 serving as a shaping bracket and arranged in the middle, wherein a composite inorganic powder layer 1 is wrapped in the metal fiber base layer 2, elastic connection supporting ribs 8 are arranged between two surfaces of the composite inorganic powder layer 1 wrapped in the metal fiber base layer 2, elastic plate layers 3 are arranged on the upper outer side and the lower outer side of the metal fiber base layer 2, an elastic honeycomb net layer 6 is arranged on the upper side of the elastic plate layer 3 on the upper side, a bi-component cotton layer 4 is arranged on the lower side of the elastic plate layer 3 on the lower side, waste textile fiber layers 5 are arranged on the outer sides of the bi-component cotton layer 4 and the elastic honeycomb net layer 6, a non-woven fabric layer 7 is attached to the two sides of the fiber covering part, and double-side wrapping is formed on the inner multi-layer structure.
Referring to fig. 1 and 2, an aluminum foil edge sealing 9 is disposed at edge sealing positions on outer sides of each layer of the fiber covering, a penetrating heat dissipation rod 10 is disposed inside the aluminum foil edge sealing 9, and the penetrating heat dissipation rod 10 penetrates through the composite inorganic powder layer 1, the metal fiber base layer 2, the elastic board layer 3, the bi-component cotton layer 4, the waste textile fiber layer 5, the elastic honeycomb net layer 6, the non-woven fabric layer 7 and the aluminum foil edge sealing 9, forms heat conduction and heat dissipation with the composite inorganic powder layer 1 and the metal fiber base layer 2, and fixes the aluminum foil edge sealing 9 on the non-woven fabric layer 7.
Further, the bicomponent cotton layer 4 specifically comprises the following components: 50% of a component A and 50% of a component B; the component A comprises the following components: 48% of graphene modified polypropylene resin, 40% of modified high-molecular-weight butyl cellulose resin, 5% of modified high-toughness radiation-proof rubber fiber, 5% of carbon-based nanofiber, 1.5% of accelerator and 0.5% of dispersing agent; the component B comprises the following components: 45% of carbon nanotube modified polyurethane resin, 30% of modified polymethyl methacrylate, 15% of modified high molecular weight butyl cellulose resin, 5% of nano silver modified nano chitosan, 3% of carbon-based nano fiber, 1.5% of accelerator and 0.5% of dispersing agent; the carbon-based nanofiber specifically comprises the following components: 40% of graphene oxide, 40% of carbon fiber and 20% of carbon nanotube.
Further, the composite inorganic powder layer 1 specifically comprises the following components: 40% of graphene oxide, 30% of aluminum alloy powder, 10% of ceramic fiber powder, 10% of special glass powder and 10% of mineral wool powder.
Further, the metal fiber base layer 2 specifically comprises the following components: 45% of soft aluminum alloy fibers, 20% of soft copper alloy fibers, 20% of steel alloy fibers and 15% of titanium alloy fibers.
Further, the elastic plate layer 3 and the elastic honeycomb net layer 6 are made of the same material and are all PVC soft rubber.
Further, the waste textile fiber layer 5 specifically comprises the following components: 25% of polypropylene fiber, 30% of polyester fiber, 20% of viscose fiber, 15% of fibrilia and 10% of cotton fiber.
Further, the elastic connection supporting ribs 8 are made of ceramic silica gel.
A method of making a multifunctional automotive headliner panel as described in example 1, comprising the steps of:
s1, pulverizing: uniformly mixing the raw materials of the composite inorganic powder layer 1, performing secondary grinding, sieving with a 0.2-0.5mm sieve, uniformly mixing again, compacting the powder layer with a specific die to obtain a thin layer with the thickness of 3-4mm, the thin layer is provided with round holes or square holes which can be inserted into the elastic connection support ribs 8 and have the diameter larger than that of the elastic connection support ribs 8, the powder layer is ensured not to deform, fall off or crack, the elastic connection support ribs 8 are inserted into the holes, and the length of the elastic connection support ribs 8 is ensured to be larger than the thickness of the composite inorganic powder layer 1;
s2, pressing: cutting each component fiber of the metal fiber base layer 2 into short fibers of 1-5cm, uniformly mixing, performing high-pressure compression molding by a high-pressure molding machine, compressing the short fibers into a thin metal fiber layer of 1-1.5mm, polishing one side of the thin metal fiber layer to be smooth, sandwiching the composite inorganic powder layer 1 with the elastic connection support ribs 8 obtained in the step S1 between two thin metal fiber layers, compressing the composite layers with smooth sides facing inwards, and ensuring that the composite inorganic powder layer 1 is not crushed after the elastic connection support ribs 8 are flattened;
s3, forming: the method comprises the steps of (1) melting all the component raw materials of an elastic plate layer 3 to form a melt, vertically placing a composite layer obtained in the step S2 in a specific die, pouring the melt into the die when the melt is cooled to be semi-solidified, rapidly cooling to enable the melt to be solidified and not to invade a metal fiber base layer 2, carrying out low-pressure lamination and trimming treatment on the elastic plate layer 3 and the metal fiber base layer 2, wherein the thickness of the elastic plate layer 3 is set to be 2-5mm;
s4, fixing: melting the raw materials of the bicomponent cotton layer 4, performing double-hole orthogonal electrostatic spinning melt-blowing to form a melt-blown bicomponent cotton layer 4, pressing the melt-blown bicomponent cotton layer 4 while hot to obtain a bicomponent cotton layer 4 with the thickness of 2-5mm, coating an adhesive on one side after the bicomponent cotton layer 4 is solidified and molded, and bonding the bicomponent cotton layer 4 to the lower side of the composite layer obtained in the step S3;
melting the composition raw materials of the elastic honeycomb net layer 6 to form a melt, pouring through a specific honeycomb hole die to form an elastic sheet with honeycomb holes, performing low-pressure pressing after staggered stacking of multiple layers of elastic sheets to obtain the elastic honeycomb net layer 6 with the thickness of 2-5mm, and coating an adhesive on one side of the obtained elastic honeycomb net layer 6 to adhere to the upper side of the composite layer obtained in the step S3;
s5, edge sealing: cutting the waste textile fiber layer 5 into short fibers of 2-4cm, uniformly mixing, pressing and forming to form the waste textile fiber layer 5 of 2-4mm, sequentially stacking the waste textile fiber layer 5 and the non-woven fabric layer 7 on the upper side and the lower side of the composite layer obtained in the step S4, performing high-pressure press forming, performing non-woven fabric hot edge sealing at the same time, and wrapping the inner layer by non-woven fabric;
the cut aluminum foil edge sealing 9 is stacked at the edge sealing position of the non-woven fabric layer 7 with the heat sealing edge, the edge sealing is wrapped, the penetrating heat dissipation rod 10 is penetrated and inserted into the edge sealing position, and the high-pressure pressing is performed again, so that the penetrating heat dissipation rod 10 is fixed with the aluminum foil edge sealing 9, and all layers inside the fiber covering piece can be obtained without displacement and deformation.
Example 2
This embodiment differs from embodiment 1 in that:
the bi-component cotton layer 4 specifically comprises the following components: 70% of a component A and 30% of a component B;
the component A comprises the following components: 50% of graphene modified polypropylene resin, 20% of modified high molecular weight butyl cellulose resin, 20% of modified high-toughness radiation-proof rubber fiber, 8% of carbon-based nanofiber, 1.5% of accelerator and 0.5% of dispersing agent;
the component B comprises the following components: 50% of carbon nanotube modified polyurethane resin, 30% of modified polymethyl methacrylate, 10% of modified high molecular weight butyl cellulose resin, 5% of nano silver modified nano chitosan, 3% of carbon-based nano fiber, 1.5% of accelerator and 0.5% of dispersing agent;
the carbon-based nanofiber specifically comprises the following components: 70% of graphene oxide, 20% of carbon fiber and 10% of carbon nanotube.
The composite inorganic powder layer 1 specifically comprises the following components: 50% of graphene oxide, 20% of aluminum alloy powder, 10% of ceramic fiber powder, 10% of special glass powder and 10% of mineral wool powder.
The metal fiber base layer 2 specifically comprises the following components: 70% of soft aluminum alloy fiber, 10% of soft copper alloy fiber, 10% of steel alloy fiber and 10% of titanium alloy fiber.
The elastic plate layer 3 and the elastic honeycomb net layer 6 are made of different materials, the elastic plate layer 3 is made of ceramic silica gel, and the elastic honeycomb net layer 6 is made of PVC soft gel.
The waste textile fiber layer 5 specifically comprises the following components: 40% of polypropylene fiber, 20% of polyester fiber, 20% of viscose fiber, 10% of fibrilia and 10% of cotton fiber.
The elastic connection supporting ribs 8 are made of metal rubber.
According to the multifunctional automobile ceiling fiber covering part, the composite inorganic powder is used as a base layer, the metal fiber is wrapped on the surface of the base layer, the elastic material is attached to the surface of the base layer, the inner layer elasticity of the sound insulation pad is guaranteed, effective heat conduction and heat dissipation of an automobile ceiling are achieved, materials such as an elastic honeycomb net, waste textile fiber and bi-component cotton with strong sound absorption and sound insulation are wrapped for strong sound absorption and sound insulation, the using effect of the sound insulation pad is guaranteed, the covering part is edge-sealed and covered through aluminum foil, heat in the covering part can be timely conducted out through a heat dissipation rod, the automobile ceiling and the covering part are prevented from being deformed and burst due to heating, the sound absorption and sound insulation effect is greatly improved, the elasticity of the covering part is improved, no crack is generated in the using process, the waste fiber is reused, the material consumption and the production cost are reduced, the economic benefit is greatly improved, and the multifunctional automobile ceiling fiber covering part has good practicability, application prospect and value.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The multifunctional automobile roof fiber covering part is characterized by comprising a metal fiber base layer (2) which is arranged in the middle and serves as a shaping bracket, wherein a composite inorganic powder layer (1) is wrapped in the metal fiber base layer (2), elastic connecting supporting ribs (8) are arranged between two surfaces of the composite inorganic powder layer (1) wrapped in the metal fiber base layer (2), elastic plate layers (3) are arranged on the upper outer side and the lower outer side of the metal fiber base layer (2), an elastic honeycomb net layer (6) is arranged on the upper side of the elastic plate layer (3) on the upper side, a bicomponent cotton layer (4) is arranged on the lower side of the elastic plate layer (3) on the lower side, waste textile fiber layers (5) are arranged on the outer sides of the bicomponent cotton layer (4) and the elastic honeycomb net layer (6), a non-woven fabric layer (7) is attached to two sides of the fiber covering part, and double-side wrapping is formed on the inner multi-layer structure;
an aluminum foil sealing edge (9) is arranged at each outer side sealing edge of the fiber covering part, a penetrating radiating rod (10) is arranged inside the aluminum foil sealing edge (9), the penetrating radiating rod (10) penetrates through the composite inorganic powder layer (1), the metal fiber base layer (2), the elastic plate layer (3), the double-component cotton layer (4), the waste textile fiber layer (5), the elastic honeycomb net layer (6), the non-woven fabric layer (7) and the aluminum foil sealing edge (9), heat conduction and heat dissipation are formed between the aluminum foil sealing edge and the composite inorganic powder layer (1) and the metal fiber base layer (2), and the aluminum foil sealing edge (9) is fixed on the non-woven fabric layer (7);
the composite inorganic powder layer (1) specifically comprises the following components: 40-60% of graphene oxide, 20-40% of aluminum alloy powder, 10-20% of ceramic fiber powder, 10-15% of special glass powder and 10-15% of mineral wool powder;
the bi-component cotton layer (4) specifically comprises the following components: 50-70% of a component A and 30-60% of a component B;
the component A comprises the following components: 35-50% of graphene modified polypropylene resin, 20-40% of modified high molecular weight butyl cellulose resin, 5-20% of modified high-toughness radiation-proof rubber fiber, 5-15% of carbon-based nanofiber, 0.5-1.5% of accelerator and 0.2-0.5% of dispersing agent;
the component B comprises the following components: 30-50% of carbon nano tube modified polyurethane resin, 15-30% of modified polymethyl methacrylate, 5-15% of modified high molecular weight butyl cellulose resin, 3-8% of nano silver modified nano chitosan, 2-3% of carbon-based nano fiber, 0.5-1.5% of accelerator and 0.2-0.5% of dispersing agent;
the carbon-based nanofiber specifically comprises the following components: 40-70% of graphene oxide, 20-40% of carbon fiber and 10-40% of carbon nanotube.
2. The multifunctional car roof fiber cover according to claim 1, characterized in that the metal fiber base layer (2) comprises the following components: 40-70% of soft aluminum alloy fiber, 10-20% of soft copper alloy fiber, 10-20% of steel alloy fiber and 10-15% of titanium alloy fiber.
3. The multifunctional automobile roof fiber covering according to claim 1, wherein the elastic plate layer (3) and the elastic honeycomb net layer (6) are made of the same material and are one of TPEE, TPV, TPU, POE, EPDM, EVA, ceramic silica gel and PVC soft gel.
4. The multifunctional car roof fiber cover according to claim 1, characterized in that the waste textile fiber layer (5) comprises the following components: 20-40% of polypropylene fiber, 20-30% of polyester fiber, 10-20% of viscose fiber, 5-15% of fibrilia and 5-10% of cotton fiber.
5. The multifunctional car roof fiber cover according to claim 1, characterized in that the elastic connection support rib (8) is one of metal rubber, ceramic silica gel, PVC soft gel, EPDM, EVA, TPO, TPV, TPS, TPA.
6. A method of making a multifunctional automotive headliner panel of claim 1, comprising the steps of:
s1, pulverizing: uniformly mixing the raw materials of the composite inorganic powder layer (1), then carrying out secondary grinding, sieving with a 0.2-0.5mm sieve, then uniformly mixing again, compacting the powder layer through a specific die to obtain a thin layer with the thickness of 3-4mm, forming round holes or square holes on the thin layer, wherein the diameter of the round holes can be inserted into the elastic connecting support ribs (8) and is larger than that of the elastic connecting support ribs (8), ensuring that the powder layer is not deformed, does not fall off and is not cracked, inserting the elastic connecting support ribs (8) into the holes, and ensuring that the length of the elastic connecting support ribs (8) is larger than that of the composite inorganic powder layer (1);
s2, pressing: cutting each component fiber of the metal fiber base layer (2) into short fibers of 1-5cm, uniformly mixing, performing high-pressure compression molding by a high-pressure molding machine, compressing the short fibers into a thin metal fiber layer of 1-1.5mm, polishing one side of the thin metal fiber layer to be smooth, sandwiching the composite inorganic powder layer 1 with the elastic connection support ribs 8 obtained in the step S1 between the two thin metal fiber layers, compressing the composite layers inwards on the smooth side, and ensuring that the composite inorganic powder layer (1) is not extruded after the elastic connection support ribs (8) are flattened;
s3, forming: the method comprises the steps of (1) melting all component raw materials of an elastic plate layer (3) to form a melt, vertically placing a composite layer obtained in the step S2 in a specific mold, pouring the melt into the mold when the melt is cooled to be semi-solidified, rapidly cooling to enable the melt to be solidified and not to invade a metal fiber base layer (2), performing low-pressure lamination and trimming treatment on the elastic plate layer (3) and the metal fiber base layer (2), wherein the thickness of the elastic plate layer (3) is set to be 2-5mm;
s4, fixing: melting the component raw materials of the bi-component cotton layer (4), performing bi-pore orthogonal electrostatic spinning melt-blowing to form a melt-blown bi-component cotton layer (4), pressing the melt-blown bi-component cotton layer (4) while hot to obtain a bi-component cotton layer (4) with the thickness of 2-5mm, coating an adhesive on one side of the bi-component cotton layer (4) after the bi-component cotton layer is solidified and molded, and bonding the bi-component cotton layer (4) to the lower side of the composite layer obtained in the step S3;
melting the composition raw materials of the elastic honeycomb net layer (6) to form a melt, pouring through a special honeycomb hole die to form an elastic sheet with honeycomb holes, performing low-pressure pressing after staggered stacking of multiple layers of elastic sheets to obtain the elastic honeycomb net layer (6) with the thickness of 2-5mm, and coating an adhesive on one side of the obtained elastic honeycomb net layer (6) to adhere to the upper side of the composite layer obtained in the step S3;
s5, edge sealing: cutting the waste textile fiber layer (5) into short fibers with the length of 2-4cm, uniformly mixing, pressing and forming to form the waste textile fiber layer (5) with the length of 2-4mm, sequentially stacking the waste textile fiber layer (5) and the non-woven fabric layer (7) on the upper side and the lower side of the composite layer obtained in the step S4, performing high-pressure press forming, performing non-woven fabric hot edge sealing at the same time, and wrapping the inner layer by non-woven fabric;
the cut aluminum foil edge sealing (9) is stacked at the edge sealing position of the non-woven fabric layer (7) with the heat sealing edge, the edge sealing is wrapped, the penetrating radiating rod (10) is penetrated and inserted into the heat sealing edge sealing position, and the heat sealing edge sealing is pressed under high pressure again, so that the penetrating radiating rod (10) is fixed with the aluminum foil edge sealing (9), and all layers inside the fiber covering piece are not located and deformed, so that the fiber covering piece can be obtained.
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| CN115139580B (en) * | 2022-06-30 | 2023-12-22 | 湖北天运消音防振新材料有限公司 | High-buffering telescopic double-component interior cotton and preparation method thereof |
| CN114919512A (en) * | 2022-06-30 | 2022-08-19 | 湖北天运消音防振新材料有限公司 | High-elasticity sound-absorbing cotton assisting air purification for automotive interior and preparation method thereof |
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