CN112810269A - Light high-strength hard board made of fiber non-woven and preparation method thereof - Google Patents
Light high-strength hard board made of fiber non-woven and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
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Abstract
The invention provides a light high-strength hard board made of fiber nonwovens and a preparation method thereof, wherein the light high-strength hard board comprises three ultrahigh molecular weight polyethylene fiber nonwovens distributed at equal intervals from top to bottom, the top and the bottom of the ultrahigh molecular weight polyethylene fiber nonwoven positioned in the middle are coated with light base layers with the thickness of 4-6mm, and the same hot-melt film is bonded between the light base layers and the corresponding ultrahigh molecular weight polyethylene fiber nonwovens.
Description
Technical Field
The invention relates to the technical field of hard boards, in particular to a light high-strength hard board made of fiber non-woven and a preparation method thereof.
Background
Based on the problems that the paperboard is heavy in weight, the rigidity of the paperboard is poor, and bending is easy to occur, the lightweight high-strength hard board made of fiber non-woven and the preparation method are provided.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a lightweight high-strength hard board made of fiber non-woven and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a light high-strength hard board made of fiber non-woven fabrics comprises three ultra-high molecular weight polyethylene fiber non-woven fabrics which are distributed at equal intervals from top to bottom, wherein the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric positioned in the middle are coated with light base layers with the thickness of 4-6mm, and the same hot-melt film is bonded between each light base layer and the corresponding ultra-high molecular weight polyethylene fiber non-woven fabric;
the preparation method comprises the following steps:
s1: preparing the following raw materials in parts by weight: 25-35 parts of bisphenol F type epoxy resin, 40-50 parts of light glass fiber, 5-8 parts of nano titanium dioxide, 2-4 parts of dibutyl phthalate, 8-10 parts of silica powder, 5-7 parts of modified asphalt, 3-5 parts of coupling agent, 4-6 parts of antioxidant, 18-22 parts of polymerized inorganic gel and 20-24 parts of lignin-based phenolic resin;
s2: sequentially adding the bisphenol F type epoxy resin, the light glass fiber, the nano titanium dioxide, the dibutyl phthalate, the silicon micropowder, the modified asphalt, the coupling agent, the antioxidant, the polymeric inorganic gel and the lignin-based phenolic resin prepared in the step S1 into a high-temperature melting furnace for high-temperature treatment for 6-8 hours to obtain a latex-shaped mixture for later use;
s3: spraying the mixture in the S2 on the bottom and the top of the prepared ultra-high molecular weight polyethylene fiber non-woven fabric by using an intelligent spray gun, and then carrying out curing operation in a curing chamber to obtain light base layers with the thickness of 4-6mm on the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric respectively;
s4: naturally airing the light base layer cured in the S3 in a sterile room;
s5: and (3) bonding a hot-melt film on one side of the light base layer in the S4, which is far away from the ultrahigh-molecular-weight polyethylene fiber non-woven fabric in the S5, bonding an ultrahigh-molecular-weight polyethylene fiber non-woven fabric on one side of the hot-melt film, which is far away from the ultrahigh-molecular-weight polyethylene fiber non-woven fabric, and finally laminating three ultrahigh-molecular-weight polyethylene fiber non-woven fabrics, two hot-melt films and two light base layers together by utilizing a hot-pressing device to obtain the light high-strength hard board.
Preferably, in S1, the coupling agent is vinyltriethoxysilane and vinyltrimethoxysilane in a ratio of 1: 2-3 proportion.
Preferably, in S1, the antioxidant is one of zinc dialkyldithiophosphate, zinc dialkyldithiocarbamate and N-phenyl- α -naphthylamine.
Preferably, in S2, the temperature inside the high temperature furnace is set to 1300-.
Preferably, in S3, the internal temperature of the curing chamber is set to 45-50 ℃, and the curing time of the curing chamber is 20-30 min.
Preferably, in S3, the intelligent spray gun is electrically connected to a control terminal installed outside the sterile room and controlled by the control terminal.
Preferably, in S4, the internal temperature of the aseptic chamber is set to 25 to 35 ℃.
Preferably, in S5, the hot-pressing device is an automated high-temperature hot-pressing device.
Compared with the prior art, the invention has light weight and stronger hardness.
Drawings
Fig. 1 is a schematic structural view of a lightweight high-strength hard board made of a fiber nonwoven fabric according to the present invention.
In the figure: 1 light base layer, 2 hot melt film and 3 ultra-high molecular weight polyethylene fiber non-woven fabric.
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.
Referring to fig. 1, the embodiment provides a light high-strength hard board made of fiber non-woven fabrics, which comprises three ultra-high molecular weight polyethylene fiber non-woven fabrics 3 distributed at equal intervals from top to bottom, wherein the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric 3 positioned in the middle are coated with a light base layer 1 with the thickness of 4-6mm, and a same hot-melt film 2 is bonded between the light base layer 1 and the corresponding ultra-high molecular weight polyethylene fiber non-woven fabric 3.
The embodiment also provides a preparation method of the lightweight high-strength hard board made of the fiber non-woven fabric, which comprises the following steps:
s1: preparing the following raw materials in parts by weight: 25-35 parts of bisphenol F type epoxy resin, 40-50 parts of light glass fiber, 5-8 parts of nano titanium dioxide, 2-4 parts of dibutyl phthalate, 8-10 parts of silica powder, 5-7 parts of modified asphalt, 3-5 parts of coupling agent, 4-6 parts of antioxidant, 18-22 parts of polymerized inorganic gel and 20-24 parts of lignin-based phenolic resin, wherein the coupling agent is vinyl triethoxysilane and vinyl trimethoxysilane, and the weight ratio is 1: 2-3, the antioxidant is one of zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate and N-phenyl-alpha-naphthylamine;
s2: sequentially adding the bisphenol F type epoxy resin, the light glass fiber, the nano titanium dioxide, the dibutyl phthalate, the silicon micropowder, the modified asphalt, the coupling agent, the antioxidant, the polymeric inorganic gel and the lignin-based phenolic resin prepared in the step S1 into a high-temperature melting furnace for high-temperature treatment for 6-8h, wherein the temperature inside the high-temperature melting furnace is set to be 1300-1400 ℃, and a stirring device for high-speed stirring of materials inside the high-temperature melting furnace is further arranged inside the high-temperature melting furnace, so as to obtain a latex-shaped mixture for later use;
s3: spraying the mixture in the S2 on the bottom and the top of the prepared ultra-high molecular weight polyethylene fiber non-woven fabric 3 by using an intelligent spray gun, wherein the intelligent spray gun is electrically connected with a control terminal installed outside a sterile room and controlled by the control terminal, and then carrying out curing operation in a curing chamber, wherein the internal temperature of the curing chamber is set to be 45-50 ℃, the curing time of the curing chamber is 20-30min, and light base layers 1 with the thickness of 4-6mm are respectively obtained on the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric 3;
s4: naturally airing the light base layer 1 cured in the S3 in a sterile room, wherein the internal temperature of the sterile room is set to be 25-35 ℃;
s5: bonding a hot-melt film 2 on one side of the light base layer 1 in the S4, which is far away from the ultrahigh molecular weight polyethylene fiber non-woven fabric 3 in the S5, then bonding an ultrahigh molecular weight polyethylene fiber non-woven fabric 3 on one side of the hot-melt film 2, which is far away from the ultrahigh molecular weight polyethylene fiber non-woven fabric 3, and finally pressing the three ultrahigh molecular weight polyethylene fiber non-woven fabrics 3, the two hot-melt films 2 and the two light base layers 1 together by utilizing a hot-pressing device, wherein the hot-pressing device is an automatic high-temperature hot-pressing device, so that the light high-strength hard board is obtained, and the light high-strength hard board is light in weight and has high hardness.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (8)
1. A light high-strength hard board made of fiber non-woven fabrics comprises three ultra-high molecular weight polyethylene fiber non-woven fabrics (3) which are distributed from top to bottom at equal intervals, and is characterized in that the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric (3) positioned in the middle are coated with light base layers (1) with the thickness of 4-6mm, and the same hot-melt film (2) is bonded between each light base layer (1) and the corresponding ultra-high molecular weight polyethylene fiber non-woven fabric (3);
the preparation method comprises the following steps:
s1: preparing the following raw materials in parts by weight: 25-35 parts of bisphenol F type epoxy resin, 40-50 parts of light glass fiber, 5-8 parts of nano titanium dioxide, 2-4 parts of dibutyl phthalate, 8-10 parts of silica powder, 5-7 parts of modified asphalt, 3-5 parts of coupling agent, 4-6 parts of antioxidant, 18-22 parts of polymerized inorganic gel and 20-24 parts of lignin-based phenolic resin;
s2: sequentially adding the bisphenol F type epoxy resin, the light glass fiber, the nano titanium dioxide, the dibutyl phthalate, the silicon micropowder, the modified asphalt, the coupling agent, the antioxidant, the polymeric inorganic gel and the lignin-based phenolic resin prepared in the step S1 into a high-temperature melting furnace for high-temperature treatment for 6-8 hours to obtain a latex-shaped mixture for later use;
s3: spraying the mixture in the S2 on the bottom and the top of the prepared ultra-high molecular weight polyethylene fiber non-woven fabric (3) by using an intelligent spray gun, and then performing curing operation in a curing chamber to obtain a light base layer (1) with the thickness of 4-6mm on the top and the bottom of the ultra-high molecular weight polyethylene fiber non-woven fabric (3) respectively;
s4: naturally airing the light base layer (1) cured in the S3 in a sterile room;
s5: bonding a hot-melt film (2) on one side of the light base layer (1) in the S4, which is far away from the ultrahigh molecular weight polyethylene fiber non-woven fabric (3) in the S5, then bonding an ultrahigh molecular weight polyethylene fiber non-woven fabric (3) on one side of the hot-melt film (2), which is far away from the ultrahigh molecular weight polyethylene fiber non-woven fabric (3), and finally pressing the three ultrahigh molecular weight polyethylene fiber non-woven fabrics (3), the two hot-melt films (2) and the two light base layers (1) together by utilizing a hot-pressing device to obtain the light high-strength hard board.
2. The lightweight, high strength rigid panel made of fibrous nonwoven material as claimed in claim 1, wherein said S1 is characterized in that said coupling agents are vinyltriethoxysilane and vinyltrimethoxysilane in a ratio of 1: 2-3 proportion.
3. The lightweight, high-strength hard sheet made of nonwoven fiber fabric as claimed in claim 1, wherein said antioxidant in S1 is one of zinc dialkyldithiophosphate, zinc dialkyldithiocarbamate and N-phenyl- α -naphthylamine.
4. The lightweight high-strength hard sheet made of fibrous nonwoven fabric as claimed in claim 1, wherein the temperature inside the high temperature furnace is set to 1300 ℃ and 1400 ℃ in S2, and a stirring device for stirring the material inside the high temperature furnace at a high speed is further installed inside the high temperature furnace.
5. The lightweight, high-strength hard sheet made of fibrous nonwoven fabric according to claim 1, wherein the internal temperature of the curing chamber is set to 45 to 50 ℃ and the curing time of the curing chamber is 20 to 30min in S3.
6. The lightweight, high strength rigid panel made of fibrous nonwoven fabric according to claim 1, wherein in S3, the smart spray gun is electrically connected to and controlled by a control terminal installed outside the sterile room.
7. The lightweight, high-strength rigid panel made of fibrous nonwoven fabric as set forth in claim 1, wherein the inner temperature of the aseptic chamber is set to 25-35 ℃ in S4.
8. The lightweight, high-strength hard board made of fibrous nonwoven material according to claim 1, wherein said hot press apparatus in S5 is an automated high-temperature hot press apparatus.
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|---|---|---|---|
| CN202110144784.5A CN112810269A (en) | 2021-02-02 | 2021-02-02 | Light high-strength hard board made of fiber non-woven and preparation method thereof |
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| CN202110144784.5A CN112810269A (en) | 2021-02-02 | 2021-02-02 | Light high-strength hard board made of fiber non-woven and preparation method thereof |
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| CN111730876A (en) * | 2020-07-10 | 2020-10-02 | 苏州银禧新能源复合材料有限公司 | Forming process of upper cover of composite battery box |
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2021
- 2021-02-02 CN CN202110144784.5A patent/CN112810269A/en active Pending
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|---|---|---|---|---|
| CN200951641Y (en) * | 2006-08-08 | 2007-09-26 | 时准 | Light high strength hard board made by fiber nonwoven fabrics |
| CN105212435A (en) * | 2014-05-28 | 2016-01-06 | 淮安可宾复合材料有限公司 | A kind of nano composite material safety toes and preparation method thereof |
| CN106757775A (en) * | 2016-11-21 | 2017-05-31 | 天津工业大学 | A kind of high-temp. resistant air filtering material and preparation method thereof |
| CN106671514A (en) * | 2016-12-07 | 2017-05-17 | 中国航空工业集团公司北京航空材料研究院 | Microwave-absorbing composite material with discontinuous impedance gradient structure |
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| CN111361240A (en) * | 2020-02-28 | 2020-07-03 | 新沂市甜浩木业有限公司 | Anticorrosive flame-retardant plywood and manufacturing method thereof |
| CN111251673A (en) * | 2020-03-06 | 2020-06-09 | 山东宽原新材料科技有限公司 | Chopped fiber reinforced thermoplastic prepreg fabric structure and preparation and application thereof |
| CN111730876A (en) * | 2020-07-10 | 2020-10-02 | 苏州银禧新能源复合材料有限公司 | Forming process of upper cover of composite battery box |
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