CN115195250A - Lightweight composite board and manufacturing method thereof - Google Patents

Lightweight composite board and manufacturing method thereof Download PDF

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Publication number
CN115195250A
CN115195250A CN202110399284.6A CN202110399284A CN115195250A CN 115195250 A CN115195250 A CN 115195250A CN 202110399284 A CN202110399284 A CN 202110399284A CN 115195250 A CN115195250 A CN 115195250A
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China
Prior art keywords
layer
lightweight
plate
composite board
thermoplastic
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CN202110399284.6A
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Chinese (zh)
Inventor
卢彦名
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Mitac Precision Technology Kunshan Ltd
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Mitac Precision Technology Kunshan Ltd
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Priority to CN202110399284.6A priority Critical patent/CN115195250A/en
Publication of CN115195250A publication Critical patent/CN115195250A/en
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
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    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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Abstract

The present invention relates to a lightweight composite board and a method for manufacturing the same, the lightweight composite board comprising: the two first-layer plates are pre-impregnated thermoplastic plates and are formed by combining thermoplastic materials and fiber materials; the second layer of plate material is arranged between the two first layers of plate materials, and the second layer of plate material is a lightweight layer of plate material; and the bonding layer is arranged between the joints of the second layer of plate material and the two first layers of plate materials, and has the characteristics of connecting and sticking the thermoplastic composite material and the lightweight material. By utilizing the lightweight composite board and the manufacturing method thereof, the problems that lightweight materials need to have certain fluidity and the bonding property between the boards is poor are solved, the bonding force between the first layer of board and the second layer of board is enhanced through the thermoplastic film, the lightweight layer is prevented from being shrunk by hot pressing through the rapid temperature rise and drop process of the die, the manufacturing period is shortened, and the production efficiency is improved.

Description

Lightweight composite board and manufacturing method thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of composite materials, in particular to a lightweight composite board and a manufacturing method thereof.
[ background ] A method for producing a semiconductor device
The thermoplastic sheet material has the characteristics of short forming time, no harmful gas generation during forming, recyclability and the like, so the thermoplastic sheet material has more applications in consumer electronics, transportation and leisure and entertainment products, but because the material of the thermoplastic sheet material needs to have certain fluidity or processability during plastic forming, the previous experience on thermosetting composite materials cannot be used in a thermoplastic system, and meanwhile, the lightweight material also needs to have certain fluidity, so that the problem that the lightweight structure is kept to the maximum extent without influencing the bonding property between the sheet materials is a challenge.
In view of the above, it is desirable to provide a lightweight composite plate material and a method for manufacturing the same, which solve the problems that the lightweight material needs to have a certain fluidity and the bonding property between the plate materials is poor.
[ summary of the invention ]
The invention aims to provide a light-weight composite plate and a manufacturing method thereof, and aims to solve the problems that the light-weight material needs to have certain fluidity and the bonding property between the plates is poor.
In order to achieve the above object, the present invention provides a lightweight composite board, comprising:
the two first-layer plates are pre-impregnated thermoplastic plates and are formed by combining thermoplastic materials and fiber materials;
a second layer of plate material, wherein the second layer of plate material is arranged between the two first layer of plate materials, the second layer of plate material is combined with the two first layer of plate materials, and the second layer of plate material is a lightweight layer of plate material;
the bonding layer is arranged between the second layer of plate and the joint of the two first layers of plates, and has the characteristic of connecting and pasting the thermoplastic composite material and the lightweight material.
Optionally, the thermoplastic material of the first layer of plate material is one or more of polycarbonate, acrylonitrile, butadiene, styrene and polypropylene, and the fiber material of the first layer of plate material is one or more of glass fiber, carbon fiber and plastic fiber.
Optionally, the lightweight composite board has a thickness of 0-5 mm.
Optionally, the lightweight material is one or more of a honeycomb material, a lightweight wood material, a thermoplastic foam material and a fiber material.
Optionally, the processing temperature of the first layer of plate in the lightweight composite plate is lower than the processing temperature of the second layer of plate.
Optionally, a thermoplastic adhesive film is disposed on the adhesive layer.
The invention also provides a manufacturing method of the lightweight composite board, which comprises the following steps:
(1) Stacking a first layer of sheet material and a second layer of sheet material;
(2) Arranging a thermoplastic film between the first layer of plate and the second layer of plate;
(3) Cutting the first layer of plate and the second layer of plate after a certain time;
(4) Placing the cut plate in a hot-pressing die;
(5) The hot-pressing die is used for hot-pressing the first layer of plate and the second layer of plate at a certain low pressure;
(6) Rapidly heating up the lightweight composite board in a short time;
(7) The thickness of the lightweight composite board is controlled to be 0-5 mm through hot pressing;
(8) After hot pressing operation, carrying out rapid cooling and temperature reduction operation on the lightweight composite board;
(9) And taking out the lightweight composite board.
Optionally, in the steps (6) and (8), the hot-pressing mold performs rapid heating and rapid cooling in a short time, so as to prevent the lightweight composite board in the intermediate layer from being heated and collapsing and cooled unevenly.
Optionally, the thermoplastic adhesive film is located between the second layer of plate and the joint of the two first layers of plates, and the thermoplastic adhesive film has the characteristics of connecting and pasting the thermoplastic composite material and the lightweight material as a bonding layer.
Optionally, the processing temperature of the first layer of plate is lower than the processing temperature of the second layer of plate.
Compared with the prior art, the lightweight composite board and the manufacturing method thereof have the advantages that the first layer of board and the second layer of board are firstly stacked, the thermoplastic film is arranged between the first layer of board and the second layer of board, the first layer of board and the second layer of board are cut after a certain period of time, the cut boards are placed in the hot pressing die, then, the hot pressing and cooling operation is rapidly carried out, the phenomenon that the lightweight layer of board is heated and shrunk and the low temperature cooling is not uniform is avoided, the pressing thickness of the lightweight composite board is 0-5 mm, finally, the operation is completed, and the lightweight composite board is taken out. By utilizing the lightweight composite board and the manufacturing method thereof, the problems that lightweight materials need to have certain fluidity and the bonding property between the boards is poor are solved, the resin bonding force between the first layer board and the second layer board is enhanced through the thermoplastic adhesive film, the lightweight layer is prevented from being shrunk by hot pressing through the rapid temperature rise and drop process of the die, the manufacturing period is shortened, and the production efficiency is improved.
[ description of the drawings ]
FIG. 1 is a cross-sectional view of a thermoplastic composite sheet of the present invention.
FIG. 2 is a schematic view of a method of manufacturing the thermoplastic composite sheet of the present invention.
[ detailed description ] embodiments
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to a preferred embodiment of the present invention and the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a sectional view of a thermoplastic composite board according to the present invention, and fig. 2 is a schematic view of a method for manufacturing the thermoplastic composite board according to the present invention.
The present invention provides a lightweight composite panel 100, comprising:
the two first-layer plates 110 are pre-impregnated thermoplastic plates, the two first-layer plates 110 are formed by combining thermoplastic materials and fiber materials, and the first-layer plates 110 are used for being matched with a hot-pressing mold to perform hot-pressing on the second-layer plates 120;
a second-layer plate material 120, wherein the second-layer plate material 120 is disposed between the two first-layer plate materials 110, the second-layer plate material 120 is bonded to the two first-layer plate materials 110, the second-layer plate material 120 is a lightweight layer plate material, the second-layer plate material 120 is characterized in that the entire plate material is lightweight and has a certain fluidity, and the second-layer plate material 120 is used for lightening the entire composite plate material;
the bonding layer 130 is arranged between the second layer of plate material 120 and the joint of the two first layer of plate materials 110, the bonding layer 130 has the characteristics of connecting and pasting thermoplastic composite materials and lightweight materials, and the bonding layer 130 is used for bonding and fixing the first layer of plate materials 110 and the second layer of plate materials 120 to enhance the bonding force between the composite plate materials.
Wherein the thermoplastic material of the first layer of plate material 110 is one or more of polycarbonate, acrylonitrile, butadiene, styrene and polypropylene, and the fiber material of the first layer of plate material 110 is one or more of glass fiber, carbon fiber and plastic fiber.
Wherein the thickness of the lightweight composite board 100 is between 0 and 5 millimeters.
The lightweight material is one or more of a honeycomb material, a lightweight wood material, a thermoplastic foaming material and a fiber material.
The processing temperature of the first layer of plate 110 in the lightweight composite plate 100 is lower than the processing temperature of the second layer of plate 120, and the processing temperature of the first layer of plate 110 in the lightweight composite plate 100 is lower than the processing temperature of the second layer of plate 120, so that the lightweight layer can maintain the integrity and avoid thermal collapse.
The adhesive layer 130 is provided with a thermoplastic film, and the thermoplastic film has certain adhesiveness and a low melting point.
The invention also provides a manufacturing method of the lightweight composite board, which comprises the following steps:
s101, stacking a first layer of plate materials and a second layer of plate materials;
s102, arranging a thermoplastic film between the first layer of plate and the second layer of plate;
s103, cutting the first layer of plate and the second layer of plate after a certain time;
s104, placing the cut plate in a hot-pressing die;
s105, carrying out hot-pressing on the first layer of plate and the second layer of plate by the hot-pressing mould at a certain low pressure;
s106, rapidly heating the lightweight composite board in a short time;
s107, controlling the thickness of the lightweight composite board to be 0-5 mm through hot pressing;
s108, after hot pressing, rapidly cooling and cooling the lightweight composite board;
s109, taking out the lightweight composite board.
In the steps S106 and S108, the hot press mold performs rapid heating and rapid cooling in a short time, and the lightweight composite board is used for preventing uneven thermal collapse and low temperature cooling of the lightweight composite board in the intermediate layer.
The thermoplastic adhesive film is arranged between the joint of the second layer of plate and the two first layers of plates, and the thermoplastic adhesive film serving as an adhesive layer has the characteristic of connecting and pasting the thermoplastic composite material and the lightweight material.
And the processing temperature of the first layer of plate is lower than that of the second layer of plate.
Compared with the prior art, the lightweight composite board 100 and the manufacturing method thereof provided by the invention have the advantages that the first layer of board 110 and the second layer of board 120 are firstly stacked, the thermoplastic film is arranged between the first layer of board 110 and the second layer of board 120, the first layer of board 110 and the second layer of board 120 are cut after a certain period of time, the cut composite board is subjected to hot pressing and cooling operation, so that the lightweight composite board is prevented from being heated and shrunk unevenly when being cooled at low temperature, the pressing thickness of the lightweight composite board 100 is 0-5 mm, and finally, the operation is completed, and the lightweight composite board 100 is taken out. By using the lightweight composite board 100 and the manufacturing method thereof of the invention, not only the problems that lightweight materials need to have certain fluidity and the bonding property between boards is poor are solved, the resin bonding force between the first layer board 110 and the second layer board 120 is enhanced through the thermoplastic adhesive film, but also the lightweight layer is prevented from being collapsed by hot pressing through the rapid heating and cooling process of the die, the manufacturing period is shortened, and the production efficiency is improved.
It should be noted that the present invention is not limited to the above embodiments, and any simple modifications and equivalent changes and modifications of the above embodiments based on the technical solution of the present invention are made by those skilled in the art and fall into the protection scope of the present invention.

Claims (10)

1. A lightweight composite board characterized by comprising:
the two first-layer plates are pre-impregnated thermoplastic plates and are formed by combining thermoplastic materials and fiber materials;
a second layer of plate material disposed between the two first layer of plate material, the second layer of plate material being bonded to the two first layer of plate material, and the second layer of plate material being a lightweight layer of plate material;
the bonding layer is arranged between the second layer of plate and the joint of the two first layers of plates, and has the characteristics of connecting and pasting thermoplastic composite materials and lightweight materials.
2. The lightweight composite board according to claim 1, wherein the thermoplastic material of the first layer board is one or more of polycarbonate, acrylonitrile, butadiene, styrene, polypropylene, and the fiber material of the first layer board is one or more of glass fiber, carbon fiber, and plastic fiber.
3. The lightweight composite board according to claim 1, wherein the thickness of the lightweight composite board is between 0 and 5 mm.
4. The lightweight composite board according to claim 1, wherein the lightweight material is one or more of a honeycomb material, a lightweight wood material, a thermoplastic foam material, and a fiber material.
5. The lightweight composite board according to claim 1, wherein the first layer of board is processed at a temperature lower than the second layer of board.
6. The lightweight composite board as set forth in claim 1, wherein a thermoplastic film is provided on the bonding layer.
7. A manufacturing method of a lightweight composite board is characterized by comprising the following steps:
(1) Stacking a first layer of sheet material and a second layer of sheet material;
(2) Arranging a thermoplastic film between the first layer of plate and the second layer of plate;
(3) Cutting the first layer of plate and the second layer of plate after a certain time;
(4) Placing the cut plate in a hot-pressing die;
(5) The hot-pressing die is used for hot-pressing the first layer of plate and the second layer of plate at a certain low pressure;
(6) Rapidly heating up the lightweight composite board in a short time;
(7) The thickness of the lightweight composite board is controlled to be 0-5 mm through hot pressing;
(8) After hot pressing operation, rapidly cooling and cooling the lightweight composite board;
(9) And taking out the lightweight composite board.
8. The method of manufacturing a lightweight composite board according to claim 7, wherein the hot press mold in steps (6) and (8) performs rapid heating and rapid cooling and cooling in a short time, in order to prevent uneven heating and cooling of the lightweight composite board in the intermediate layer.
9. The method for manufacturing a lightweight composite board according to claim 7, wherein the thermoplastic adhesive film is provided between the joint of the second board and the first boards, and the thermoplastic adhesive film serves as an adhesive layer for bonding the thermoplastic composite material and the lightweight material.
10. The method of manufacturing a lightweight composite board according to claim 7, wherein the first layer board is processed at a temperature lower than the second layer board.
CN202110399284.6A 2021-04-14 2021-04-14 Lightweight composite board and manufacturing method thereof Pending CN115195250A (en)

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Publication number Priority date Publication date Assignee Title
CN103144361A (en) * 2013-04-01 2013-06-12 浙江联洋复合材料有限公司 Sandwiched composite sheet and manufacturing method thereof
CN103568396A (en) * 2012-08-02 2014-02-12 上海杰事杰新材料(集团)股份有限公司 Light-weight and high-strength thermoplastic composite material sandwich board and production method thereof
CN105563971A (en) * 2015-04-20 2016-05-11 广州金发碳纤维新材料发展有限公司 Composite sandwich structural body as well as preparation method and application thereof
CN108407421A (en) * 2018-03-16 2018-08-17 嘉兴领科材料技术有限公司 A kind of lightweight high-impact high-modulus multilayer composite board and preparation method thereof being easy to thermoforming

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568396A (en) * 2012-08-02 2014-02-12 上海杰事杰新材料(集团)股份有限公司 Light-weight and high-strength thermoplastic composite material sandwich board and production method thereof
CN103144361A (en) * 2013-04-01 2013-06-12 浙江联洋复合材料有限公司 Sandwiched composite sheet and manufacturing method thereof
CN105563971A (en) * 2015-04-20 2016-05-11 广州金发碳纤维新材料发展有限公司 Composite sandwich structural body as well as preparation method and application thereof
CN108407421A (en) * 2018-03-16 2018-08-17 嘉兴领科材料技术有限公司 A kind of lightweight high-impact high-modulus multilayer composite board and preparation method thereof being easy to thermoforming

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