CN116394622A - GFRP/paper honeycomb composite material and preparation method thereof - Google Patents

GFRP/paper honeycomb composite material and preparation method thereof Download PDF

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Publication number
CN116394622A
CN116394622A CN202310397319.1A CN202310397319A CN116394622A CN 116394622 A CN116394622 A CN 116394622A CN 202310397319 A CN202310397319 A CN 202310397319A CN 116394622 A CN116394622 A CN 116394622A
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China
Prior art keywords
fiber reinforced
honeycomb
glass fiber
layer
paper
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CN202310397319.1A
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Chinese (zh)
Inventor
姚子凌
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Individual
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Individual
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Priority to CN202310397319.1A priority Critical patent/CN116394622A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard 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 shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • 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
    • B32B37/1284—Application of adhesive
    • 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
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a GFRP/paper honeycomb composite material and a preparation method thereof. The glass fiber reinforced plastic/paper honeycomb composite material is of a layered structure and comprises a fiber reinforced outer layer of a top layer, a honeycomb layer in the middle and a fiber reinforced outer layer of a bottom layer, wherein the fiber reinforced outer layer and honeycomb holes in the honeycomb layer form a closed structure. The product in this application is to brush the adhesive tape with corrugated paper after, bond, artifical slitting and stretch forming, stretch and accomplish the back and dry, then with the paper honeycomb that obtains with the manual work of glass fiber felt lay up to after the surface spraying polyurethane, put into mould pressing equipment heating, pressurization obtain. The glass fiber reinforced plastic/paper honeycomb composite material can reduce the weight of automobiles, and is an effective method for reducing fuel consumption and gas emission.

Description

GFRP/paper honeycomb composite material and preparation method thereof
Technical Field
The invention belongs to the field of composite materials, and relates to a GFRP/paper honeycomb composite material and a preparation method thereof.
Background
In order to further alleviate the tremendous environmental stress of automobiles, the automotive industry has placed stringent demands on production safety and light vehicles. Research has shown that one of the effective ways to achieve substantial reductions in fuel consumption and gas emissions is to reduce the weight of the rider. The light weight of an automobile means that the weight of the automobile is reduced to the maximum extent under the primary task of safety and self strength of the automobile, so as to meet the requirements of reducing emission and energy consumption and improve the power performance of the automobile. The main part of the weight of the automobile comes from the interior decoration of the automobile, so that the weight thereof can be suitably reduced in terms of materials and design.
With the development of materials and technologies, lightweight alternative materials have become the mainstream. The widespread use of steel in vehicles has led to an increase in vehicle weight, however, as light weight automobiles are pursued, research and application of aluminum, magnesium alloys and composite materials have been gradually expanding. Although aluminum and magnesium alloys have certain advantages, further use of the aluminum alloys is limited due to poor repairability of the aluminum alloys after deformation; because of the great difficulty of the magnesium alloy forming process, the magnesium alloy forming process has not been applied on a large scale at present.
Disclosure of Invention
The technical problem to be solved by the invention is the existing light-weight requirement problem of the automobile. Therefore, the invention provides a glass fiber reinforced plastic/paper honeycomb composite material and a preparation method thereof.
The invention solves the technical problems through the following technical proposal.
In a first aspect of the present invention, there is provided a glass fiber reinforced plastic/paper honeycomb composite material, the glass fiber reinforced plastic/paper honeycomb composite material having a layered structure, comprising a top fiber reinforced outer layer, a middle honeycomb layer, and a bottom fiber reinforced outer layer, wherein the fiber reinforced outer layer and the honeycomb holes in the honeycomb layer form a closed structure.
Preferably, in the glass fiber reinforced plastic/paper honeycomb composite material, the fiber reinforced outer layer is a glass fiber felt, and the honeycomb layer and the fiber reinforced outer layer are bonded through an adhesive.
Preferably, the glass fiber felt is a felt product formed by cutting continuous glass fiber monofilaments into short shreds with the length of 30-50 mm, uniformly distributing the short shreds on a plane, making the short shreds non-directional, fixing the formed shape of the short shreds, and mixing the short shreds with a binder for bonding.
Preferably, in the glass fiber reinforced plastic/paper honeycomb composite material, the core layer material of the honeycomb layer can be corrugated paper.
Preferably, in the glass fiber reinforced plastic/paper honeycomb composite material, the honeycomb layer is formed by brushing adhesive tapes on the corrugated paper, bonding, slitting, stretching and drying.
Preferably, the honeycomb layer structure may be a layered polygonal honeycomb structure based on vertexes or a layered concave honeycomb structure based on fractal.
In a second aspect of the present invention, there is provided a method for preparing a glass fiber reinforced plastic/paper honeycomb composite material, comprising the steps of:
step 1, firstly, brushing adhesive tapes on a plurality of corrugated papers, bonding, slitting, stretching and forming, and drying at a certain temperature to obtain paper honeycomb;
step 2, manually laying the paper honeycomb obtained in the step 1 and the glass fiber felt, fully soaking the glass fiber felt with polyurethane, and soaking the inner walls of the paper honeycomb cells to bond the paper honeycomb cells;
and step 3, placing the material obtained in the step 2 into molding equipment, heating at a certain temperature, and maintaining pressure for a period of time to obtain the glass fiber reinforced plastic/paper honeycomb composite material.
Preferably, the corrugated paper in the step 1 has the surface density of 150-200 g/m 2 The temperature is 120-160 ℃, and the drying time is 10-20 min; the polyurethane spraying work in the step 2 can be performedFixing, namely, conveying the workpiece to a spraying room by using a robot arm; in the step 3, the temperature is 135-145 ℃, and the pressure maintaining time is 100-120 s.
In a third aspect of the invention, there is provided the use of a glass fibre reinforced plastic/paper honeycomb composite in the automotive field for reducing the weight of an automobile.
Compared with the prior art, the invention has the beneficial effects that:
according to the glass fiber reinforced plastic/paper honeycomb composite material, as the two ends of the honeycomb layer are reinforced by the glass fiber felts, the glass fiber reinforced plastic/paper honeycomb composite material has higher strength and higher rigidity, meets the current aim of lightening automobiles, and has good practicability.
Drawings
FIG. 1 is a schematic illustration of a honeycomb layer as a hierarchical polygon honeycomb structure based on vertices;
fig. 2 is a schematic diagram of a honeycomb layer as a fractal-based hierarchical concave honeycomb structure.
Detailed Description
The present invention will be described in detail with reference to specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
Example 1
The glass fiber reinforced plastic/paper honeycomb composite material with the layered polygonal honeycomb structure based on the vertexes shown in fig. 1 is a layered structure and comprises a top fiber reinforced outer layer, a middle honeycomb layer and a bottom fiber reinforced outer layer, wherein the fiber reinforced outer layer and honeycomb holes in the honeycomb layer form a closed structure. The fiber reinforced outer layer is made of glass fiber felt, and the honeycomb layer and the fiber reinforced outer layer are bonded through an adhesive.
The production steps are as follows:
step 1, firstly, a plurality of surface densities are 170g/m 2 The corrugated paper is coated with adhesive tape, and is formed by bonding, manual slitting and stretching, and the temperature is controlled to be 140 DEG CDrying in an oven for 15 min;
and 2, manually laying and fixing the paper honeycomb and the glass fiber mat obtained in the step 1. The connection between the honeycomb layer and the fiber reinforced outer layer is realized by fully infiltrating the glass fiber felt through polyurethane and infiltrating the inner walls of the paper honeycomb cells for bonding. In order to avoid larger relative sliding, the polyurethane spraying device can be conveyed to a spraying chamber by a mechanical arm to finish polyurethane spraying;
and step 3, heating and pressurizing in molding equipment, controlling the temperature to be 135-145 ℃ and controlling the pressure maintaining time to be 110 seconds.
Example 2
The glass fiber reinforced plastic/paper honeycomb composite material based on the fractal layered concave honeycomb structure shown in fig. 2 is of a layered structure and comprises a top fiber reinforced outer layer, a middle honeycomb layer and a bottom fiber reinforced outer layer, wherein the fiber reinforced outer layer and honeycomb holes in the honeycomb layer form a closed structure. The fiber reinforced outer layer is made of glass fiber felt, and the honeycomb layer and the fiber reinforced outer layer are bonded through an adhesive.
The production steps are as follows:
step 1, firstly, a plurality of surface densities are 160g/m 2 Coating adhesive tapes on corrugated paper, bonding layer by layer, manually cutting strips, stretching and forming, and drying in an oven at 140 ℃ for 15 min;
and 2, manually laying and fixing the paper honeycomb and the glass fiber mat obtained in the step 1. The connection between the honeycomb layer and the fiber reinforced outer layer is realized by fully infiltrating the glass fiber felt through polyurethane and infiltrating the inner walls of the paper honeycomb cells for bonding. In order to avoid larger relative sliding, the polyurethane spraying device can be conveyed to a spraying chamber by a mechanical arm to finish polyurethane spraying;
and step 3, heating and pressurizing in molding equipment, controlling the temperature to be 135-145 ℃ and controlling the pressure maintaining time to be 120 seconds.

Claims (9)

1. The glass fiber reinforced plastic/paper honeycomb composite material is characterized by being of a layered structure and comprising a fiber reinforced outer layer of a top layer, a honeycomb layer in the middle and a fiber reinforced outer layer of a bottom layer, wherein the fiber reinforced outer layer and honeycomb holes in the honeycomb layer form a closed structure.
2. The glass fiber reinforced plastic/paper honeycomb composite of claim 1, wherein the outer fiber reinforced layer is a glass fiber mat, and wherein the honeycomb layer and the outer fiber reinforced layer are bonded by an adhesive.
3. The glass fiber reinforced plastic/paper honeycomb composite of claim 2, wherein the glass fiber mat is a mat product formed by cutting continuous glass fiber filaments into short filaments of 30-50 mm, uniformly distributing the short filaments in a plane, making the short filaments non-directional, fixing the formed shape of the short filaments, and mixing the short filaments with a binder for bonding.
4. A glass fibre reinforced plastics/paper honeycomb composite according to any one of claims 1 to 3 wherein the core material of the honeycomb layer is corrugated paper.
5. The glass fiber reinforced plastic/paper honeycomb composite of claim 4, wherein the honeycomb layer is formed by brushing adhesive tape on the corrugated paper, bonding, slitting, stretching and drying.
6. The glass fiber reinforced plastic/paper honeycomb composite of claim 5, wherein the honeycomb layer has a layered polygonal honeycomb structure based on vertices or a layered concave honeycomb structure based on fractal.
7. A method for preparing a glass fiber reinforced plastic/paper honeycomb composite according to any one of claims 1 to 3, 5 or 6, comprising the steps of:
step 1, firstly brushing adhesive tapes on corrugated paper, bonding, slitting, stretching and forming, and drying to obtain paper honeycomb;
step 2, manually laying the paper honeycomb obtained in the step 1 and the glass fiber felt, fully soaking the glass fiber felt with polyurethane, and soaking the inner walls of the paper honeycomb cells to bond the paper honeycomb cells;
and step 3, placing the material obtained in the step 2 into molding equipment, heating and maintaining pressure for a period of time to obtain the glass fiber reinforced plastic/paper honeycomb composite material.
8. The method for preparing glass fiber reinforced plastic/paper honeycomb composite material according to claim 7, wherein the corrugated paper in the step 1 has an areal density of 150 to 200g/m 2 The temperature of the drying is 120-160 ℃, and the time of the drying is 10-20 min; in the step 2, the polyurethane is fixed when being sprayed, and the polyurethane is sent to a spraying room by a robot arm to finish the spraying; in the step 3, the heating temperature is 135-145 ℃, and the pressure maintaining time is 100-120 s.
9. Use of a glass fiber reinforced plastic/paper honeycomb composite as claimed in any of claims 1 to 3, 5 or 6 in the automotive field.
CN202310397319.1A 2023-04-13 2023-04-13 GFRP/paper honeycomb composite material and preparation method thereof Pending CN116394622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310397319.1A CN116394622A (en) 2023-04-13 2023-04-13 GFRP/paper honeycomb composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310397319.1A CN116394622A (en) 2023-04-13 2023-04-13 GFRP/paper honeycomb composite material and preparation method thereof

Publications (1)

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CN116394622A true CN116394622A (en) 2023-07-07

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