CN103465436A - Method for manufacturing fiber reinforced product with combination mechanism - Google Patents

Abstract

A method of manufacturing a fiber-reinforced product having a bonding mechanism, comprising the steps of: stacking a plurality of fiber reinforced materials impregnated with thermosetting resin and a thermosetting polymer membrane into a composite substrate; (B) placing the composite substrate in a hot-pressing mould to be hot-pressed into a semi-finished product, wherein the semi-finished product comprises an intermediate layer formed by the thermosetting polymer membrane and a body which is connected with the intermediate layer and is formed by the fiber reinforced material; (C) coating an adhesive on the intermediate layer to form an adhesive layer; (D) and placing the semi-finished product in a forming die to form a combining mechanism combined with the adhesive layer. By matching the medium layer with the adhesion layer, the bonding force between the semi-finished product and the bonding mechanism can be improved, and the semi-finished product can be effectively prevented from being broken or peeled off under the action of external force.

Description

Method for manufacturing fiber-reinforced product with bonding mechanism

technical field

The invention relates to a method for manufacturing a fiber-reinforced product, in particular to a method for manufacturing a fiber-reinforced product with a bonding mechanism.

Background technique

With the improvement of industrial technology and living standards, people have higher and higher requirements for various products. They not only require low price and practicality, but also further require functions such as beauty, light weight, and long service life.

Therefore, in recent years, more and more products are made of high-strength and light-weight fiber-reinforced materials in daily life, and products made of carbon fiber-reinforced materials are the most common. Forming, so it is mostly used to manufacture products with uniform cross-section such as plate, tube or column. If you want to form products with more complex characteristic structures, you often need to form them separately, and then use mechanical force manually (for example: pin , rivets, screws, etc.) or adhesives are combined with each other, so that not only poor dimensional accuracy but also time-consuming and labor-intensive.

In order to overcome the above-mentioned shortcomings, related companies have developed such as Japanese No. 2010-046939 "Manufacturing Method of Integral Molded Products", which mainly involves placing a fiber-reinforced composite material plate containing thermoplastic resin and tapered at the end into a mold. The attachment part is injection-molded on the fiber-reinforced composite material board by using the injection molding technique.

However, the thermoplastic resin has poor strength and rigidity, which results in insufficient bonding force between the attachment part and the fiber-reinforced composite material board, and is prone to breakage or peeling due to external force.

Contents of the invention

The purpose of the present invention is to provide a method for manufacturing a fiber-reinforced product with a bonding mechanism with relatively stable bonding force.

The method for manufacturing a fiber-reinforced product with a combination mechanism includes the following steps: (A) stacking several fiber-reinforced materials impregnated with a thermosetting resin and a thermosetting polymer membrane to form a composite substrate, and the thermosetting polymer membrane It is made of polyether or polyamide polymer materials. (B) Place the composite base material in a hot pressing mold and heat press it into a semi-finished product. The semi-finished product includes a thermosetting polymer film. an intermediate layer, and a body connected to the intermediate layer and formed of the fiber reinforced material, (C) coating the adhesive on the intermediate layer to form an adhesive layer, (D) placing the semi-finished product in a In the forming mold, the injection molding technology is used to fill the thermoplastic polymer material into the forming mold to form a bonding mechanism combined with the adhesive layer, thereby obtaining a fiber-reinforced product with a bonding mechanism.

In the method for manufacturing a fiber-reinforced product with a bonding mechanism of the present invention, the body of the semi-finished product in step (B) has a first surface and a second surface opposite to each other, and a ring surrounding the first surface and the second surface. The surrounding surface of the periphery, the intermediary layer covers the second surface and the surrounding surface.

In the method for manufacturing a fiber-reinforced product with a bonding mechanism of the present invention, the body of the semi-finished product in step (B) has a first surface and a second surface opposite to each other, and a ring surrounding the first surface and the second surface. A surrounding surface of the periphery, the interposer surrounds the surrounding surface.

The method for manufacturing a fiber-reinforced product with a bonding mechanism of the present invention, the fiber-reinforced material impregnated with a thermosetting resin in the step (A) is a carbon fiber prepreg impregnated with an epoxy resin, and the thermosetting polymer membrane is polyurethane made from esters.

The beneficial effect of the present invention lies in: using the intermediary layer formed by the thermosetting polymer film to surely wrap the body formed by the fiber reinforced material to provide sufficient strength and rigidity, and to cooperate with the adhesive layer formed by the adhesive , not only can improve the bonding force and stability between the semi-finished product and the bonding mechanism, but also can effectively prevent fracture or peeling due to external force.

Description of drawings

Fig. 1 is a flow chart illustrating a preferred embodiment of the method of manufacturing a fiber-reinforced product with bonding mechanism of the present invention.

FIG. 2 is a schematic diagram to assist in explaining FIG. 1 .

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Figures 1 and 2, a preferred embodiment of the method for manufacturing a fiber-reinforced product with a bonding mechanism in the present invention, first, as shown in step 21, several fiber-reinforced materials 31 impregnated with thermosetting resin and a thermosetting polymer The membranes 32 are stacked to form a composite substrate 33 , and the thermosetting polymer membrane 32 is made of polyethers or polyamide polymer materials.

In this preferred embodiment, the fiber reinforced material 31 impregnated with thermosetting resin is a carbon fiber prepreg cloth impregnated with epoxy resin, and the thermosetting polymer membrane 32 is made of polyurethane (PU) .

Next, as shown in step 22, the composite substrate 33 is placed in a hot pressing mold 200 and heat-pressed to form a semi-finished product 34, the semi-finished product 34 includes an intermediary layer 341 formed by the thermosetting polymer film 32, and A body 342 is located in the intermediate layer 341 and formed by the fiber reinforced material 31 . Wherein, the body 342 of the semi-finished product 34 has an opposite first surface 343 and a second surface 344, and a surrounding surface 345 surrounding the periphery of the first surface 343 and the second surface 344, and the intermediary layer 341 is a coating The second surface 344 and the surrounding surface 345 .

It should be noted here that in this preferred embodiment, the intermediary layer 341 covers the second surface 344 and the surrounding surface 345. In practical applications, it can be achieved through the design of the hot pressing mold 200, or Changing the stacking method of the thermosetting polymer film 32 and the fiber reinforced material 31 so that the intermediary layer 341 only covers the surrounding surface 345 can still achieve the same effect.

Then, as shown in step 23 , an adhesive is coated on the intermediate layer 341 of the semi-finished product 34 to form an adhesive layer 346 . Finally, as shown in step 24, the semi-finished product 34 is placed in a forming mold 201, and the thermoplastic polymer material is filled in the forming mold 201 by using injection molding technology to form a combination with the adhesive layer 346. mechanism 35, and then obtain a fiber-reinforced product 36 with a bonding mechanism 35.

By stacking the thermosetting polymer film 32 and the fiber reinforcement material 31 to form the composite base material 33, and then heat pressing to form the semi-finished product 34, the interlayer 341 formed by the thermosetting polymer film 32 can be The main body 342 formed by the fiber-reinforced material 31 is indeed wrapped, the interlayer 341 formed by the thermosetting polymer film 32 with better strength and rigidity than thermoplastic resin, and the adhesive layer coated on the intermediary layer 341 346, to combine the bonding mechanism 35 injection-molded with thermoplastic polymer materials, not only can improve the bonding force and stability between the bonding mechanism 35 and the semi-finished product 34, but also provide sufficient strength and rigidity to avoid the semi-finished product 34 and the semi-finished product 34. The coupling mechanism 35 is easily broken or peeled off due to external force.

To sum up, the method for manufacturing a fiber-reinforced product with a bonding mechanism of the present invention includes stacking the thermosetting polymer membrane 32 and the fiber-reinforced material 31 to form the composite base material 33, and heat-pressing to form the semi-finished product 34, The intermediary layer 341 formed by the thermosetting polymer film 32 can definitely wrap the body 342 formed by the fiber reinforced material 31 to provide sufficient strength and rigidity, and cooperate with the adhesive layer 346 formed by the adhesive , not only can improve the bonding force and stability between the semi-finished product 34 and the bonding mechanism 35, but also effectively avoid fracture or peeling due to external force, so the purpose of the present invention can indeed be achieved.

Claims (4)

1. A method of manufacturing a fiber-reinforced product with a bonding mechanism, characterized in that: The manufacturing method includes the following steps: (A) stacking several fiber reinforced materials impregnated with thermosetting resin and a thermosetting polymer membrane to form a composite substrate, the thermosetting polymer membrane is selected from polyether or polyamide high (B) placing the composite base material in a hot-pressing mold and hot-pressing it into a semi-finished product, the semi-finished product includes an intermediary layer formed by the thermosetting polymer film, and an interlayer with the intermediary layer connected and formed of said fiber-reinforced material, (C) applying an adhesive to the intermediary layer to form an adhesive layer, (D) placing the semi-finished product in a forming mold, and injecting the thermoplastic The polymer material is filled in the forming mold to form a combination mechanism combined with the adhesive layer to obtain a fiber-reinforced product with a combination mechanism. 2. The method for manufacturing a fiber-reinforced product with a bonding mechanism according to claim 1, wherein the body of the semi-finished product in the step (B) has a first surface and a second surface opposite to each other, and a surrounding The surrounding surface of the first surface and the periphery of the second surface, the intermediary layer covers the second surface and the surrounding surface. 3. The method for manufacturing a fiber-reinforced product with a bonding mechanism according to claim 1, characterized in that: the body of the semi-finished product in the step (B) has a first surface and a second surface opposite, and a surrounding The surrounding surface of the first surface and the periphery of the second surface, the intermediary layer surrounds the surrounding surface. 4. The method for manufacturing a fiber-reinforced product with a bonding mechanism according to any one of claims 1 to 3, characterized in that: the fiber-reinforced material impregnated with thermosetting resin in the step (A) is carbon fiber impregnated with epoxy resin Prepreg, the thermosetting polymer film is made of polyurethane.

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