CN111391438A - Light high-strength sandwich plate and preparation method thereof - Google Patents
Light high-strength sandwich plate and preparation method thereof Download PDFInfo
- Publication number
- CN111391438A CN111391438A CN202010364032.5A CN202010364032A CN111391438A CN 111391438 A CN111391438 A CN 111391438A CN 202010364032 A CN202010364032 A CN 202010364032A CN 111391438 A CN111391438 A CN 111391438A
- Authority
- CN
- China
- Prior art keywords
- glass fiber
- fiber layer
- epoxy resin
- carbon fiber
- lightweight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 58
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 35
- 239000004917 carbon fiber Substances 0.000 claims abstract description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003822 epoxy resin Substances 0.000 claims abstract description 31
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 31
- 239000011521 glass Substances 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 239000011324 bead Substances 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000004593 Epoxy Substances 0.000 claims description 16
- 238000007731 hot pressing Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 6
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000004843 novolac epoxy resin Substances 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 2
- 239000012815 thermoplastic material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 8
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B32B17/067—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 fibres or filaments
-
- 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
- B32B37/1018—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 using only vacuum
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- 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
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- 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
- B32B2250/20—All layers being fibrous or filamentary
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a light high-strength sandwich plate which comprises a glass fiber layer and carbon fiber layers laid on two surfaces of the glass fiber layer, wherein an epoxy resin compound is impregnated on the glass fiber layer, hollow glass beads are filled in the epoxy resin compound, and the epoxy resin compound is covered on the glass fiber layer and used as an adhesive layer for adhering the carbon fiber layers on the upper surface and the lower surface of the glass fiber layer. The invention also discloses a preparation method for manufacturing the light high-strength sandwich plate, which comprises the steps of (1) preparing glue solution, (2) manufacturing an adhesive sheet, (3) preparing a glass fiber light plate, (4) paving a carbon fiber prepreg layer and (5) performing hot press molding. The sandwich board prepared by the preparation method has lighter weight and higher strength, can be compounded with thermoplastic materials in a machining mode, and can be used as a structural member or a part of bearing part of a tablet personal computer, a notebook computer, a high-end electronic game machine, a high-end luggage and the like.
Description
Technical Field
The invention relates to the technical field of composite boards, in particular to a light high-strength sandwich board and a preparation method thereof.
Background
The common light epoxy board is prepared by soaking glass cloth in hollow engineering plastic and then pressing. The light epoxy board adopting the method has the advantages that the hollow filler wall is thin, the compressive strength is not high, and the occupied volume of the board is larger, so that the bending strength and the bending modulus of the common light epoxy board are lower, and the hollow filler wall is more than that of the common light epoxy board which is used in the mobile phone protective case material with small forming size. For electronic products with high requirements on bending strength and compressive strength, the common light epoxy board cannot meet the corresponding requirements.
Disclosure of Invention
The invention aims to provide a light high-strength sandwich plate and a preparation method thereof, which have the advantages of high strength and light weight and solve the technical problem that the common light epoxy plate in the prior art has low bending strength and bending modulus so as to cause that the requirements of products with higher requirements cannot be met.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a light high strength sandwich board, includes the glass fiber layer and lays the fibrous layer on glass fiber layer two sides, the last epoxy compound that impregnates of glass fiber layer, it has hollow glass bead to fill in the epoxy compound, the fibrous layer that the epoxy compound covers two upper and lower surfaces of bonding layer is used for bonding the fibrous layer of glass as the adhesive linkage on the fibrous layer of glass.
According to the technical scheme, the carbon fiber layer has the characteristics of high strength and high temperature resistance, the carbon fiber layer covers the upper surface and the lower surface of the glass fiber layer, the glass fiber layer is effectively protected, the epoxy resin compound is used for bonding the carbon fiber layer and the glass fiber layer, the hollow glass beads are light in weight and small in specific gravity, and the sandwich plate is filled in the epoxy resin compound, so that the sandwich plate is lighter in weight; the sandwich plate has the advantages of light weight and high strength.
According to the light high-strength sandwich plate, the content of the hollow glass beads on the glass fiber layer accounts for 15-70% of the total weight of the glass fiber layer.
In the light high-strength sandwich plate, the density of the plate of the glass fiber layer is 0.5-1.5 g/cm3The thickness is 0.3 to 5.0 mm.
The epoxy resin compound comprises one or more of bisphenol A type novolac epoxy resin, o-cresol epoxy resin, phosphorus-containing epoxy resin or dicyclopentadiene epoxy resin.
In the light high-strength sandwich plate, the glass fiber layer is any one or a combination of unidirectional glass fiber yarn and glass fiber cloth.
In the light high-strength sandwich plate, the carbon fiber layers are arranged to be of a layered structure, and the number of the carbon fiber layers is 1-8.
In the light high-strength sandwich plate, the carbon fiber layer comprises any one or combination of carbon fiber unidirectional yarns and carbon fiber woven cloth.
In order to solve the above technical problems, another technical solution provided by the present invention is: a method for making a lightweight, high strength sandwich panel according to any of the above embodiments, the method comprising the steps of:
(1) preparing glue solution: uniformly mixing epoxy resin and a curing agent according to a certain mass ratio to form an epoxy resin glue solution, adding hollow glass beads accounting for 5-70% of the total weight into the glue solution, and fully dispersing the hollow glass beads into the glue solution;
(2) manufacturing an adhesive sheet: soaking glass fibers in the glue solution obtained in the step (1), and then baking to form a prepreg with the thickness of 0.1-0.3 mm;
(3) preparing a glass fiber light plate: laying a corresponding number of semi-cured bonding sheets in the step (2), and performing hot-pressing curing under high-temperature, high-pressure and vacuum conditions, wherein the temperature is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr, so as to form a fully-cured lightweight plate;
(4) laying a carbon fiber prepreg layer: laying carbon fiber prepreg layers in support areas on two sides of the glass fiber lightweight board;
(5) hot-press molding: and starting the hot press, carrying out secondary hot-pressing curing molding, and cooling to obtain the light high-strength carbon fiber and glass fiber epoxy resin composite sandwich plate, wherein the temperature of the secondary hot pressing is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr.
The beneficial effects obtained by the invention are as follows: the surface formed by the carbon fiber layer is compounded with the epoxy resin impregnated glass fiber layer containing the hollow glass beads, so that the obtained sandwich plate has lighter weight and higher strength, can be compounded with a thermoplastic material in a machining mode, and can be used as a structural member or a part of bearing parts of a tablet personal computer, a notebook computer, a high-end electronic game machine, a high-end luggage and the like.
Drawings
FIG. 1 is a schematic view of a layered structure of a sandwich panel according to the invention;
FIG. 2 is a schematic cross-sectional view of the sandwich panel of FIG. 1.
Description of reference numerals: 1 glass fiber layer and 2 carbon fiber layer.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Referring to fig. 1 and 2, the invention discloses a light high-strength sandwich plate, which comprises a glass fiber layer 1 and carbon fiber layers 2 laid on two surfaces of the glass fiber layer 1, wherein epoxy resin compounds are impregnated on the glass fiber layer 2, hollow glass beads are filled in the epoxy resin compounds, the hollow glass beads are dispersed in the epoxy resin compounds to play a role of reducing weight, and the epoxy resin compounds are covered on the glass fiber layer 1 to serve as bonding layers for bonding the carbon fiber layers 2 on the upper surface and the lower surface of the glass fiber layer 1, so that the carbon fiber layers 2 are firmly connected with the glass fiber layer 1.
In this embodiment, the content of the hollow glass beads in the glass fiber layer 1 is 15% to 70% of the total weight of the glass fiber layer 1. In other embodiments, the hollow glass microspheres are present in an amount of 30% to 50% by weight.
The density of the glass fiber layer 1 is 0.5-1.5 g/cm3The thickness is 0.3 to 5.0 mm. In other embodiments, the density of the glass fiber layer 1 may be 0.5-1.0 g/cm 3.
The epoxy resin compound comprises one or more of bisphenol A novolac epoxy resin, o-cresol epoxy resin, phosphorus-containing epoxy resin or dicyclopentadiene epoxy resin. Further, the glass fiber layer 1 is any one of unidirectional glass fiber yarn and glass fiber cloth or a combination thereof.
In the present embodiment, the carbon fiber layer 2 is provided as a layered structure, and the number of layers is 1 to 8. Further, the carbon fiber layer 2 includes any one of carbon fiber unidirectional yarn, carbon fiber woven cloth, or a combination thereof.
The invention also discloses a preparation method of the light high-strength sandwich plate, which comprises the following steps:
(1) preparing glue solution: uniformly mixing epoxy resin and a curing agent according to a certain mass ratio to form an epoxy resin glue solution, adding hollow glass beads accounting for 5-70% of the total weight into the glue solution, and fully dispersing the hollow glass beads into the glue solution;
(2) manufacturing an adhesive sheet: soaking glass fibers in the glue solution obtained in the step (1), and then baking to form a prepreg with the thickness of 0.1-0.3 mm;
(3) preparing a glass fiber light plate: laying a corresponding number of semi-cured bonding sheets in the step (2), and performing hot-pressing curing under high-temperature, high-pressure and vacuum conditions, wherein the temperature is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr, so as to form a fully-cured lightweight plate;
(4) laying a carbon fiber prepreg layer: laying carbon fiber prepreg layers in support areas on two sides of the glass fiber lightweight board;
(5) hot-press molding: and starting the hot press, carrying out secondary hot-pressing curing molding, and cooling to obtain the light high-strength carbon fiber and glass fiber epoxy resin composite sandwich plate, wherein the temperature of the secondary hot pressing is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr.
The invention is further illustrated by the following examples of the invention and comparative examples:
the first embodiment is as follows: the light high-strength sandwich plate with the thickness of 1.0mm prepared by the preparation method is used for testing the density, the bending strength and the bending modulus of the plate.
The first comparative example is as follows: pure light epoxy boards with the same thickness of 1.0mm are taken and tested for board density, bending strength and bending modulus in a comparison manner.
Comparative example two: and taking a common density epoxy glass fiber board with the same thickness of 1.0mm, and comparing and testing the density, the bending strength and the bending modulus of the board.
The test results of example one are compared with those of comparative examples one and two as follows:
table 1 comparison of performance tests between examples and comparative examples
Compared with a pure light epoxy plate, the light high-strength sandwich plate has the advantages that the strength is obviously increased, and the light high-strength sandwich plate can play a good role in supporting and fully protecting a tablet computer, a notebook computer, a high-end game machine or a high-end case.
Compared with the common density epoxy glass fiber board, the light high-strength sandwich board has the advantages of obviously reduced density, obviously increased strength and light weight and high strength.
In summary, the actual samples of the present invention are prepared according to the description and the drawings, and after a plurality of usage tests, the effect of the usage tests proves that the present invention can achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only for convenience of illustration and not intended to limit the invention in any way, and those skilled in the art will be able to make equivalents of the features of the invention without departing from the technical scope of the invention.
Claims (8)
1. The utility model provides a light high strength sandwich panel which characterized in that: including glass fiber layer (1) and lay carbon fiber layer (2) on glass fiber layer (1) two sides, the impregnation has epoxy compound on glass fiber layer (2), it has hollow glass bead to fill in the epoxy compound, epoxy compound covers carbon fiber layer (2) that are used for bonding glass fiber layer (1) upper and lower two surfaces as the adhesive linkage on glass fiber layer (1).
2. The lightweight, high strength sandwich panel of claim 1, wherein: the content of the hollow glass beads on the glass fiber layer (1) accounts for 15-70% of the total weight of the glass fiber layer (1).
3. According to the rightThe lightweight, high-strength sandwich panel of claim 1, wherein: the density of the glass fiber layer (1) is 0.5-1.5 g/cm3The thickness is 0.3 to 5.0 mm.
4. The lightweight, high strength sandwich panel of claim 1, wherein: the epoxy resin compound comprises one or more of bisphenol A type novolac epoxy resin, o-cresol epoxy resin, phosphorus-containing epoxy resin or dicyclopentadiene epoxy resin.
5. The lightweight, high strength sandwich panel of claim 1, wherein: the glass fiber layer (1) is any one or combination of unidirectional glass fiber yarn and glass fiber cloth.
6. The lightweight, high strength sandwich panel of claim 1, wherein: the carbon fiber layer (2) is arranged to be of a layered structure, and the number of layers is 1-8.
7. The lightweight, high strength sandwich panel of claim 6, wherein: the carbon fiber layer (2) comprises any one or the combination of carbon fiber unidirectional yarns and carbon fiber woven cloth.
8. A method of making a lightweight, high strength sandwich panel according to any of claims 1 to 7, comprising: the preparation method comprises the following steps:
(1) preparing glue solution: uniformly mixing epoxy resin and a curing agent according to a certain mass ratio to form an epoxy resin glue solution, adding hollow glass beads accounting for 5-70% of the total weight into the glue solution, and fully dispersing the hollow glass beads into the glue solution;
(2) manufacturing an adhesive sheet: soaking glass fibers in the glue solution obtained in the step (1), and then baking to form a prepreg with the thickness of 0.1-0.3 mm;
(3) preparing a glass fiber light plate: laying a corresponding number of semi-cured bonding sheets in the step (2), and performing hot-pressing curing under high-temperature, high-pressure and vacuum conditions, wherein the temperature is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr, so as to form a fully-cured lightweight plate;
(4) laying a carbon fiber prepreg layer: laying carbon fiber prepreg layers in support areas on two sides of the glass fiber lightweight board;
(5) hot-press molding: and starting the hot press, carrying out secondary hot-pressing curing molding, and cooling to obtain the light high-strength carbon fiber and glass fiber epoxy resin composite sandwich plate, wherein the temperature of the secondary hot pressing is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364032.5A CN111391438A (en) | 2020-04-30 | 2020-04-30 | Light high-strength sandwich plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010364032.5A CN111391438A (en) | 2020-04-30 | 2020-04-30 | Light high-strength sandwich plate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111391438A true CN111391438A (en) | 2020-07-10 |
Family
ID=71425527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010364032.5A Pending CN111391438A (en) | 2020-04-30 | 2020-04-30 | Light high-strength sandwich plate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111391438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061320A (en) * | 2021-03-25 | 2021-07-02 | 哈尔滨工业大学 | Sandwich composite material plate for robot structure and protection and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009132574A (en) * | 2007-11-30 | 2009-06-18 | Ching-Ling Pan | Carbon nanocrystal material and method for manufacturing hot plate using the same |
| CN106113738A (en) * | 2016-07-15 | 2016-11-16 | 广东新秀新材料股份有限公司 | Sandwich structure composite material and preparation method thereof |
-
2020
- 2020-04-30 CN CN202010364032.5A patent/CN111391438A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009132574A (en) * | 2007-11-30 | 2009-06-18 | Ching-Ling Pan | Carbon nanocrystal material and method for manufacturing hot plate using the same |
| CN106113738A (en) * | 2016-07-15 | 2016-11-16 | 广东新秀新材料股份有限公司 | Sandwich structure composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061320A (en) * | 2021-03-25 | 2021-07-02 | 哈尔滨工业大学 | Sandwich composite material plate for robot structure and protection and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4558091B1 (en) | Fiber-reinforced molded body and method for producing the same | |
| KR101911479B1 (en) | Prepreg and method for manufacturing same | |
| CN1048446C (en) | A method of manufacturing a composite laminate comprising unidirectional reinforcing fibres, for use in printed wire boards | |
| US7887916B2 (en) | Process for producing sandwich structure and adhesive film used therefor | |
| WO2014035073A1 (en) | Core material for sandwich panel and method for manufacturing same, and sandwich panel comprising core material | |
| CN113650375B (en) | Impact-resistant and flame-retardant floor and preparation method thereof | |
| CN114013151B (en) | Gradient multilayer damping material and preparation method thereof | |
| CN111391438A (en) | Light high-strength sandwich plate and preparation method thereof | |
| US20240066849A1 (en) | Epoxy resin composition and transparent composite material comprising same, and laminated board | |
| CN212579353U (en) | Sandwich board | |
| CN212827241U (en) | Light high strength sandwich board | |
| CN111409328A (en) | Sandwich board and preparation method thereof | |
| CN111004407A (en) | Prepreg and preparation method thereof | |
| CN110978678A (en) | Composite board and preparation method thereof | |
| CN215512535U (en) | Carbon fiber reinforced phase epoxy resin-based reinforced flame-retardant composite board | |
| CN209869584U (en) | Light high-strength unidirectional carbon fiber laminated board | |
| CN214927697U (en) | Electromagnetic shielding light high-strength sandwich plate | |
| CN111016377B (en) | Sandwich structure composite material and OOA preparation method thereof | |
| CN111251670A (en) | High-bending-strength high-modulus light epoxy composite board and preparation method thereof | |
| CN111634075A (en) | Carbon fiber solid wood board and preparation process thereof | |
| CN112976720A (en) | Honeycomb composite board and preparation method and application thereof | |
| JP7419291B2 (en) | Method for manufacturing fiber-reinforced molded body, resin sheet, and method for manufacturing resin sheet | |
| JP4116361B2 (en) | Intermediate material for FRP molding and manufacturing method thereof | |
| CN216610399U (en) | Impact-resistant composite material | |
| CN117264370A (en) | Carbon fiber prepreg and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Building B1, No.7, Xingsheng 4th Road, Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province 526000 Applicant after: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. Address before: Room 105, 1 / F, Mingxuan Garden Club B, No.39 District, Kengkou new town, Dinghu District, Zhaoqing City, Guangdong Province (office space only) Applicant before: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 526071 building B1, No. 7, Xingsheng Fourth Road, Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province Applicant after: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. Address before: 526000 building B1, No.7, Xingsheng 4th Road, Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province Applicant before: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |