CN112829399B - Mould pressing composite sandwich plate - Google Patents

Mould pressing composite sandwich plate Download PDF

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Publication number
CN112829399B
CN112829399B CN202110014429.6A CN202110014429A CN112829399B CN 112829399 B CN112829399 B CN 112829399B CN 202110014429 A CN202110014429 A CN 202110014429A CN 112829399 B CN112829399 B CN 112829399B
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glass fiber
fiber reinforced
triangular
reinforced layer
core material
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CN202110014429.6A
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Chinese (zh)
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CN112829399A (en
Inventor
吴律
胡求严
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Vanguard Composite Co ltd
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Vanguard Composite Co ltd
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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
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/066—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of foam
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • 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
    • 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
    • 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
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/045—Slitting
    • 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
    • B32B2250/03—3 layers
    • 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
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • 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
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/73—Hydrophobic

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a die-pressing composite sandwich plate. The phenolic glass fiber prepreg comprises an upper panel, a lower panel and a core material, wherein the core material is positioned between the upper panel and the lower panel; the core material comprises a phenolic foam material and a glass fiber reinforced layer; the phenolic foam material is spliced by a plurality of triangular prisms, the sections of the triangular prisms are right-angled triangles, and the side surface where one right-angled side of each section is positioned is attached to the upper panel or the lower panel; the glass fiber reinforced layer is wrapped on the surface of the triangular prism. The invention effectively solves the problems of easy layering, poor bearing capacity, easy corrosion, poor flame retardance and the like of the common composite board, and simultaneously improves the sound insulation property and the impact resistance of the composite board.

Description

Mould pressing composite sandwich board
Technical Field
The invention relates to a die-pressing composite sandwich plate.
Background
The traditional composite board generally comprises an upper panel, a core material (arranged between the upper panel and the lower panel) and a lower panel, wherein the upper panel, the core material and the lower panel are generally glued together during preparation, and then the composite board with the required structural characteristics is pressed by a hot-press forming technology. The bonding parts of the upper and lower panels and the core material of the composite board prepared by gluing and hot press molding are easy to generate layering defects. When the layered joint of the composite board is not firm, the overall strength of the product is poor, and the heat insulation effect of the core material is reduced after the water absorption of the product is increased due to the existence of gaps; under the condition of low ambient temperature, the core material can be separated from the layering joint due to frost heaving; meanwhile, the upper and lower panels may also cause the composite panel to deform due to temperature changes.
The core material is generally made of phenolic foam, has the advantages of good heat resistance, difficult combustion in fire, low smoke, low toxicity, environmental protection and the like, and is internationally recognized as an ideal heat insulation material for green building materials.
The composite board is used as a top plate, a floor or a wall plate of the railway vehicle, once the combination part is layered, friction can occur in the high-speed running process, noise is generated, and the audio-visual environment in a carriage is influenced; the composite floor or wall plate is used for a floor or wall plate of a ship, and the joint is layered, so that seawater can be immersed into the floor or wall plate, corrosion is increased, the service cycle of the ship is shortened, and the weight of the ship is increased.
Disclosure of Invention
The invention aims to provide a die-pressing composite sandwich plate to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme:
a mould pressing composite sandwich panel comprises an upper panel, a lower panel and a core material, wherein the core material is positioned between the upper panel and the lower panel; the core material comprises a phenolic aldehyde foaming material and a glass fiber reinforced layer; the phenolic foam material is formed by splicing a plurality of triangular prisms, the sections of the triangular prisms are right-angled triangles, and the side surface where one right-angled side of each section is located is attached to the upper panel or the lower panel; the glass fiber reinforced layer is wrapped on the surface of the triangular prism.
Further, the glass fiber reinforced layer is phenolic aldehyde glass fiber prepreg cloth and is divided into a first glass fiber reinforced layer and a second glass fiber reinforced layer; the side at the first right-angle side place in triangular prism cross-section laminates with top panel or lower panel, and the side at second right-angle side place laminates with the side at the second right-angle side place of another triangular prism, forms the laminating seam, and two triangular prisms of laminating seam both sides form a big triangular prism, the fine enhancement layer of first glass is followed big triangular prism side tortuous circuitous is wrapped up in and is covered, the fine enhancement layer of second glass is inserted and is located in the laminating seam.
Furthermore, the cross section of the triangular prism is an isosceles right triangle.
Furthermore, the first glass fiber reinforced layer and the second glass fiber reinforced layer are lapped at two ends of the joint seam.
The invention also provides a method for manufacturing the die pressing composite sandwich plate, which comprises the following steps:
s1, forming the triangular strip-shaped phenolic aldehyde foaming material by using a forming die;
s2, wrapping triangular strip-shaped phenolic foam materials with a first glass fiber reinforced layer, wrapping the triangular strip-shaped phenolic foam materials in a positive-negative crossing manner, wherein each wrapping part contains two triangular strip-shaped phenolic foam materials, the cross sections of the two triangular strip-shaped phenolic foam materials after being spliced are isosceles right triangles, and the two triangular strip-shaped phenolic foam materials are separated by a second glass fiber reinforced layer to form a core material;
s3, sequentially placing the lower panel, the core material and the upper panel into a hot-press forming die;
and S4, hot-press forming, cutting and trimming.
Compared with the prior art, the invention has the advantages that:
(1) the phenolic foam material is used as the core material, so that the flame retardant effect which can reach the highest non-combustible level can be provided, and the separation performance of the board can be improved;
(2) the phenolic prepreg cloth plate is used as the outer layer, so that the characteristics of the composite board such as waterproof and anticorrosion functions are effectively improved;
(3) the glass fiber reinforced layer is adopted, so that the strength and the anti-layering capacity of the composite board are effectively improved; the strength is 3-5 times of that of a common sandwich plate;
(4) the processing technology is optimized, the composite board is formed by one-time hot pressing and solidification, and the production efficiency is greatly improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic cross-sectional view of a core material according to the present invention.
The glass fiber reinforced plastic composite material comprises, by weight, 1-an upper panel, 2-a core material, 3-a lower panel, 21-a phenolic foam material, 22-a first glass fiber reinforced layer and 23-a second glass fiber reinforced layer.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
The embodiment provides a die-pressing composite sandwich plate with reference to fig. 1-2, which comprises an upper panel 1, a lower panel 3 and a core material 2, wherein the core material 2 is positioned between the upper panel 1 and the lower panel 3, and the die-pressing composite sandwich plate is characterized in that the lower panel 3 of the upper panel 1 is made of phenolic glass fiber prepreg cloth; the core material 2 comprises a phenolic foam material 21 and a glass fiber reinforced layer; the phenolic foam material 21 is spliced by a plurality of triangular prisms, the sections of the triangular prisms are right-angled triangles, and the side surface where one right-angled side of each section is located is attached to the upper panel or the lower panel; the glass fiber reinforced layer is wrapped on the surface of the triangular prism.
Furthermore, the glass fiber reinforced layer is phenolic glass fiber prepreg cloth and is divided into a first glass fiber reinforced layer 22 and a second glass fiber reinforced layer 23; the side at the first right-angle side place in triangular prism cross-section laminates with top panel or lower panel, and the side at second right-angle side place laminates with the side at the second right-angle side place of another triangular prism, forms the laminating seam, and two triangular prisms of laminating seam both sides form a big triangular prism, the fine enhancement layer 22 of first glass is followed big triangular prism side tortuous circuitous is wrapped up in and is covered, the fine enhancement layer 23 of second glass inserts and locates in the laminating seam.
Furthermore, the cross section of the triangular prism is an isosceles right triangle.
Further, the first glass fiber reinforced layer 22 and the second glass fiber reinforced layer 23 are overlapped at two ends of the joint seam.
The invention also provides a method for manufacturing the die pressing composite sandwich plate, which comprises the following steps:
s1, forming the triangular strip-shaped phenolic aldehyde foaming material 21 by using a forming die;
s2, wrapping the triangular strip-shaped phenolic foam materials 21 with a first glass fiber reinforced layer, wrapping the triangular strip-shaped phenolic foam materials in a positive-negative crossing manner, wherein each wrapping part contains two triangular strip-shaped phenolic foam materials 21, the cross sections of the two triangular strip-shaped phenolic foam materials 21 after being spliced are isosceles right triangles, and the two triangular strip-shaped phenolic foam materials 21 are separated by a second glass fiber reinforced layer 23 to form a core material;
s3, sequentially putting the lower panel 3, the core material 2 and the upper panel 1 into a hot-press forming die;
and S4, hot-press forming, cutting and trimming.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (3)

1. A mould pressing composite sandwich panel comprises an upper panel, a lower panel and a core material, wherein the core material is positioned between the upper panel and the lower panel;
the core material comprises a phenolic foam material and a glass fiber reinforced layer;
the phenolic foam material is formed by splicing a plurality of triangular prisms, the sections of the triangular prisms are right-angled triangles, and the side surface where one right-angled side of each section is located is attached to the upper panel or the lower panel;
the glass fiber reinforced layer is wrapped on the surface of the triangular prism;
the glass fiber reinforced layer is phenolic aldehyde glass fiber prepreg cloth and is divided into a first glass fiber reinforced layer and a second glass fiber reinforced layer;
the side surface of a first right-angle side of the section of each triangular prism is attached to the upper panel or the lower panel, the side surface of a second right-angle side of the section of each triangular prism is attached to the side surface of a second right-angle side of another triangular prism to form an attachment seam, two triangular prisms on two sides of the attachment seam form a large triangular prism, the first glass fiber reinforcing layer is wrapped along the side surface of the large triangular prism in a tortuous and circuitous manner, and the second glass fiber reinforcing layer is inserted into the attachment seam;
the first glass fiber reinforced layer and the second glass fiber reinforced layer are in lap joint at two ends of the joint seam.
2. The molded composite sandwich panel of claim 1, wherein the triangular prism cross-section is an isosceles right triangle.
3. A method for manufacturing a die-pressed composite sandwich plate is characterized by comprising the following steps:
s1, forming the triangular strip-shaped phenolic aldehyde foaming material by using a forming die;
s2, wrapping triangular strip-shaped phenolic foam materials with a first glass fiber reinforced layer, wrapping the triangular strip-shaped phenolic foam materials in a positive-negative crossing manner, wherein each wrapping part contains two triangular strip-shaped phenolic foam materials, the cross sections of the two triangular strip-shaped phenolic foam materials after being spliced are isosceles right triangles, and the two triangular strip-shaped phenolic foam materials are separated by a second glass fiber reinforced layer to form a core material;
s3, sequentially placing the lower panel, the core material and the upper panel into a hot-press forming die;
and S4, hot-press forming, cutting and trimming.
CN202110014429.6A 2021-01-06 2021-01-06 Mould pressing composite sandwich plate Active CN112829399B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201649322U (en) * 2009-12-08 2010-11-24 哈尔滨东大林业技术装备有限公司 Phenolic glass fiber enhancement foam composite board
CN202399610U (en) * 2011-09-26 2012-08-29 蓝星环境工程有限公司 Composite plate
CN103862758A (en) * 2012-12-17 2014-06-18 杨贤斌 Glass fiber or carbon fiber composite structure
CN107351852A (en) * 2017-06-29 2017-11-17 常州诺法新材料科技有限公司 Light fibre enhancing phenolic aldehyde sandwich sheet material and preparation method thereof
CN109373818A (en) * 2018-10-24 2019-02-22 相城区黄桥宜智机电技术服务部 A kind of armour and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201649322U (en) * 2009-12-08 2010-11-24 哈尔滨东大林业技术装备有限公司 Phenolic glass fiber enhancement foam composite board
CN202399610U (en) * 2011-09-26 2012-08-29 蓝星环境工程有限公司 Composite plate
CN103862758A (en) * 2012-12-17 2014-06-18 杨贤斌 Glass fiber or carbon fiber composite structure
CN107351852A (en) * 2017-06-29 2017-11-17 常州诺法新材料科技有限公司 Light fibre enhancing phenolic aldehyde sandwich sheet material and preparation method thereof
CN109373818A (en) * 2018-10-24 2019-02-22 相城区黄桥宜智机电技术服务部 A kind of armour and its manufacturing method

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