TWI829078B - A method for fixing an article using fiber resin fixation element and product thereof - Google Patents

Abstract

Present invention is related to a method for fixing an article using fiber resin fixation element having the steps of providing at least two layers of fiber materials with a hole configured thereon respectively, layering the at least two layers of fiber materials with each hole positioned correspondingly, putting a resin fiber nail into the holes of the layered fiber materials, heating and pressing the resin fiber nail with a flat fixation part on the surface of the fiber materials. The present invention provides a unique technique for processing the fiber prepreg with the resin fiber nail fixation method. Taking the credit of the resin fiber nail has good heat related combine affinity for firmly attachment, the fiber composite products provided by the present invention could have a better quality and longer duration.

Description

Method for fixing articles using fiber resin fasteners and products thereof

A method of fixing items, especially a method of fixing two or more layers of fabric or non-fabric using fiber resin fasteners.

The existing carbon fiber prepreg is an intermediate product composed of carbon fiber yarn and thermosetting resin, such as epoxy resin. It is widely used in subsequent processing and molding, such as automobile interior and exterior trim panels, bicycle parts, fishing rods, etc. And products in different fields.

However, although existing carbon fiber prepregs can be widely used in the manufacturing of various products, there are many difficulties that need to be overcome in the molding process. First of all, when making load-bearing or supporting products, carbon fiber prepregs usually need to be laminated in multiple layers and then cured and formed. However, during the lamination and curing process, good positioning of the carbon fiber prepregs and the fact that the cured finished product is not easy to delaminate is a major point. .

Furthermore, the problem that thermosetting resin cannot be recycled and processed also challenges the added value of product remanufacturing and environmental protection issues.

In order to solve the environmental protection problems of the existing multi-layer thermosetting carbon fiber prepreg being difficult to fix and the thermosetting resin being unable to be recycled and reused, the present invention provides a method and products for fixing items using fiber resin fasteners to solve or at least provide An alternative that improves the shortcomings of existing technology.

The first inventive concept of the present invention is a method for fixing items using fiber resin fasteners. The steps include: Step 1: Provide at least two fiber materials, each of which is provided with at least one through hole; Step 2: Stack the at least two fiber materials. Fiber material and make each of the perforations correspond; Step 3: Pierce a fiber composite nail in the perforation of stacking the at least two fiber materials; Step 4: Heat and press the fiber composite nail to make it in the at least two fiber materials The surface of the fiber material on both sides of the perforation forms a flat fixing part.

Among them: the fiber material is a hardened fiber board or an unhardened fiber cloth impregnated with thermosetting resin, thermoplastic resin or thermoplastic resin.

Preferably, the fibers of the fiber material include carbon fiber, glass fiber or Kevlar fiber; the thermosetting resin of the fiber material includes epoxy resin or phenolic resin; the thermoplastic resin includes thermoplastic polyurethane, polypropylene, polyvinyl chloride, polyethylene ester, acrylic, polyetheretherketone, polyetherketoneketone, polyetherimide or polytetrafluoroethylene; the thermoplastic resin includes thermoplastic epoxy resin; and the fiber cloth of the fiber material is woven Cloth or non-woven fabric.

Among them: the fiber composite nail is composed of a fiber and a base material.

Preferably, the fiber of the fiber composite nail includes carbon fiber, glass fiber or Kevlar fiber; and the base material of the fiber composite nail includes thermosetting resin, thermoplastic resin, thermoplastic resin, carbon plastic-based resin or metal.

Wherein, the thermosetting resin includes epoxy resin or phenolic resin, and the thermoplastic resin includes thermoplastic polyurethane, polypropylene, polyvinyl chloride, polyester, acrylic, polyetheretherketone, polyetherketoneketone, polyetherimide, Polytetrafluoroethylene, the thermoplastic resin includes thermoplastic epoxy resin and the metal includes iron, aluminum or alloys thereof.

Wherein: when the fiber composite nail is inserted into the perforation of stacking the at least two fiber materials in step 3, the fiber contained in the fiber composite nail in each perforation presents an angle with the horizontal plane of the at least two fiber materials of at least greater than 60 degree setting.

Wherein: in step 3, the fiber composite nail is inserted before the perforation. The fiber composite nail is a vertical nail-shaped composite made of the fiber and the base material, or the flat fixing part is first formed on one side of the fiber composite nail. .

The second inventive concept of the present invention is a product made by the front-unfolding method, which includes: at least two layers of fiber materials fixed with a fiber composite nail, at least two layers of fiber materials fixed with a fiber composite nail, The fiber material is a sheet made of impregnated resin fiber board or cloth and cured. Each fiber material includes at least one perforation and the perforation positions are opposite; the fiber composite nail is composed of a fiber bundle and a base material, and the fiber bundle extends An axial extension is wrapped in the base material, and a partial section of the fiber composite nail is accommodated in the perforation; the fiber bundle is a continuous fiber, and both ends of the fiber composite nail include flat fixings with a diameter larger than the perforation. department.

Wherein, the angle between the fiber bundles contained in the fiber composite nail and the fiber arrangement of the fiber material is at least greater than 60 degrees.

The fiber material and the fiber bundle are carbon fiber, glass fiber or Kevlar fiber.

Wherein, the impregnated fiber material resin includes thermosetting resin, thermoplastic resin or thermoplastic resin.

Wherein, the base material in the fiber composite nail includes thermosetting resin, thermoplastic resin, thermoplastic resin, carbon plastic-based resin or metal.

Wherein, the thermosetting resin includes epoxy resin or phenolic resin, the thermoplastic resin includes polypropylene, polyvinyl chloride, polyester, acrylic, polyetheretherketone, polyetherimide or polytetrafluoroethylene, and the thermoplastic resin The moldable resin includes thermoformable epoxy resin and the metal includes iron, aluminum or alloys thereof.

Wherein, the fiber composite nail is made by wrapping fiber bundles on the base material, or by winding the fiber fabric of the base material into a columnar shape.

From the above description, it can be seen that the present invention has the following beneficial effects and advantages:

1. The present invention uses thermoplastic resin to replace the traditional thermosetting resin carbon fiber prepreg, and uses special fiber composite nails to penetrate the preset perforations of the multi-layer thermoplastic resin prepreg, and nail the base material through the fiber composite , preferably, the thermoplastic resin can be thermally combined with the thermoplastic resin prepreg so that the multi-layer thermoplastic resin prepreg can be firmly fixed, making subsequent molding smoother and the finished product having a better service life.

2. The thermoplastic resin used in the present invention is a material that can be heated and used multiple times, which can improve the existing problem that thermosetting resin cannot be recycled.

10: Fiber material

11:Perforation

20: Fiber composite nails

21: Flat fixed part

22:Fiber

23:Substrate

S1-S4: Steps

The present invention will be further described below by way of exemplary embodiments, which will be described in detail by means of the accompanying drawings. These embodiments are not limiting. In these embodiments, the same numbers represent the same structure, wherein: Figure 1 is a schematic step flow diagram of a preferred embodiment of the manufacturing method of the present invention; and Figure 2A and Figure 2B are the fiber of the present invention. Cross-sectional view of composite nails before and after use.

In order to explain the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some examples or embodiments of the present invention. For those of ordinary skill in the art, without exerting any creative effort, the present invention can also be applied to applications based on these drawings. Other similar scenarios. Unless obvious from the locale or otherwise stated, the same reference numbers in the figures represent the same structure or operation. It should be understood that the terms “system”, “device”, “unit” and/or “module” used herein are used to distinguish different levels of A method of component, element, part, part or assembly. However, said words may be replaced by other expressions if they serve the same purpose.

Flowcharts are used in the present invention to illustrate the operational steps performed by methods according to embodiments of the present invention. It should be understood that preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. At the same time, you can add other operations to these processes, or remove a step or steps from these processes.

<Preferred embodiment of the method of fixing items using fiber resin fasteners>

Please refer to Figure 1, a first preferred embodiment of the method of the present invention, the steps include:

Step S1): Provide at least two fiber materials 10, each fiber material 10 is provided with at least one through hole 11; wherein: the fiber material 10 is preferably a fiber cloth, and more preferably is impregnated with thermosetting, thermoplastic resin (Thermoplastic) or thermoplastic Thermal formable fiber cloth can be in woven or non-woven form, and the fiber type can be carbon fiber, glass fiber, or KEVLAR fiber; the thermosetting resin includes epoxy resin or phenolic resin; Thermoplastic resins include but are not limited to thermoplastic polyurethane (TPU), polypropylene (PP), polyvinyl chloride (PVC), polyester (PC), acrylic (acrylic fiber, PA), polyether ether ketone (PEEK), poly Ether ketone ketone (PEKK), polyetherimide (PEI), polytetrafluoroethylene (PFA); thermoplastic resin may be thermoplastic epoxy resin. On the other hand, the fiber material 10 in this step may be a fiber board that has been hardened or a fiber cloth that has not yet been hardened.

Step S2): Stack the at least two fiber materials 10 and make the respective perforations 11 correspond;

Step S3): Pierce a fiber composite nail 20 in the through hole 11 of the at least two fiber materials 10. The fiber composite nail 20 is made of fiber and base material. In this step, the fiber composite nail 20 is inserted into the hole 11 of the at least two fiber materials 10. When the fiber composite nail 20 is used, it is preferred that the fibers contained in the fiber composite nail 20 are arranged perpendicularly to the horizontal plane of the at least two fiber materials 10 in each through hole 11; the fiber composite nail 20 can be a fiber bundle wrapped in The base material may be made of fiber composite fabric rolled into a columnar shape.

Step S4): Heat and press the fiber composite nail 20 to form a flat fixing portion 21 on the surface of the fiber material 10 on both sides of the through hole 11 of the at least two fiber materials 10, so that the at least two fiber materials can be fixed. 10. Furthermore, the fiber composite nail 20 can pre-form the flat fixing part 21, and the fiber composite nail 20 can penetrate the through hole 11 so that the flat fixing part 21 abuts one of the surfaces of the fiber materials 10, and then the fiber composite nail 20 can be The free ends of the fiber material 10 and the fiber composite nail 20 are exerted with forces in opposite directions, that is, a tensile force is applied to the free end of the fiber composite nail 20, and after heating and melting, the fiber material 10 and the fiber composite nail 20 are heated and melted. The fiber composite nails 20 are tightly combined.

Step S5): (Optional, figure not shown) Using the fiber composite nail 20 to fix the at least two fiber materials 10 can be further introduced into the subsequent heating forming process, and because the fiber composite nail 20 has firmly fixed the at least two fiber materials 10 The fiber material 10 makes it difficult to delaminate in subsequent processes, and the manufactured product is also difficult to delaminate, extending the life of the product.

<Preferred embodiment of fiber resin fastener>

Please refer to FIGS. 2A and 2B , which are cross-sectional views of the fiber composite nail 20 before and after use according to the present invention. The fiber composite nail 20 is composed of a fiber 22 and a base material 23. The base material 23 can be thermosetting resin, thermoplastic resin, thermoplastic resin, carbon plastic-based resin or metal. The thermosetting resin includes epoxy resin or phenolic resin; the thermoplastic resin includes thermoplastic polyurethane (TPU), polypropylene (PP), polyvinyl chloride (PVC), polyester (PC), acrylic (acrylic fiber, PA), Polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyetherimide (PEI), polytetrafluoroethylene (PFA); the thermoplastic resin may be thermoplastic epoxy resin; the metal Can contain iron, aluminum or alloys thereof.

In this embodiment, the fiber composite nail 20 is composed of the fiber 22 and a thermoplastic resin as the base material 23. The fiber 22 extends in the same axial direction and covers the thermoplastic resin as the base material. 23, as shown in FIG. 2A, the fiber composite nail 20 can be a vertical nail-shaped composite made of the fiber 22 and the thermoplastic resin as the base material 23, or it can also be firstly formed on one side. This flat fixing part 21 is formed.

As shown in FIG. 2B , when the fiber composite nail 20 is inserted into the through hole 11 of the at least two fiber materials 10 (step S3) and heated and pressurized (step S4), the fiber composite nail 20 will The flat fixing portion 21 is formed on the surface of the fiber material 10 on both sides of the perforations 11 of the at least two fiber materials 10 , and the fibers contained in the fiber composite nail 20 are present in each of the perforations 11 with the at least two fiber materials 10 The angle formed by the horizontal plane is at least greater than 60 degrees, and more preferably, at least some of the fibers are vertically arranged and continuously extend at both ends of the fiber composite nail 20; further, the fibers of the fiber composite nail 20 can be The fiber composite nails 20 are spirally extended at both ends along the length direction, so that the angled fiber composite nails 20 can be more firmly and firmly combined with the at least two fiber materials 10, and subsequent bending processing is possible. Or it is not easy to fall off and delaminate under use.

Further, the fibers 22 of the fiber composite nail 20 can also be carbon fiber, glass fiber, or Kevlar fiber. More preferably, when the fiber composite nail 20 is applied to the aforementioned manufacturing method, when the selected base material 23 is plastic or polymer, its type is the same as or similar to the type of resin contained in the at least two fiber materials 10. Therefore, the flat fixing portion 21 can be more firmly and stably combined with the through hole 11 .

On the other hand, the type of fiber 22 of the fiber composite nail 20 does not necessarily need to be the same as the type of fiber contained in the at least two fiber materials 10. It is even better to select a type of fiber with stronger strength as the type. The fiber 22 of the fiber composite nail 20 is selected.

In some embodiments, numbers are used to describe the quantities of components and properties. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Grooming. Unless otherwise stated, "about," "approximately," or "substantially" means that the stated number is allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximations that may vary depending on the desired characteristics of individual embodiments. In some embodiments, numerical parameters should account for the specified number of significant digits and use general digit preservation methods. Although this hair It is understood that the numerical fields and parameters used to confirm the breadth of the ranges in some embodiments are approximate values. In specific embodiments, such numerical values are set as accurately as possible within the feasible range.

Finally, it should be understood that the embodiments described in the present invention are only used to illustrate the principles of the embodiments of the present invention. Other variations are possible within the scope of the invention. Accordingly, by way of example and not limitation, alternative configurations of embodiments of the invention may be considered consistent with the teachings of the invention. Accordingly, embodiments of the invention are not limited to those expressly illustrated and described.

10: Fiber material

11:Perforation

20: Fiber composite nails

21: Flat fixed part

S1-S4: Steps

Claims (12)

A method for fixing items using fiber resin fasteners, the steps of which include: Step 1: Provide at least two fiber materials, each fiber material is provided with at least one perforation; Step 2: Stack the at least two fiber materials and make the perforations correspond to each other. ; Step 3: Pierce a fiber composite nail in the perforation of the at least two fiber materials, wherein the fiber composite nail is composed of a fiber and a base material, and the fiber composite nail contains the The angle between the fibers and the fiber arrangement of the fiber material is at least greater than 60 degrees; and step 4: heat and press the fiber composite nail to form a flat fixed portion on the surface of the fiber material on both sides of the perforations of the at least two fiber materials. The method of fixing items using fiber resin fasteners as described in claim 1, wherein the fiber material is a hardened fiber board or an unhardened fiber cloth impregnated with thermosetting resin, thermoplastic resin or thermoplastic resin. The method of fixing items using fiber resin fasteners as described in claim 2, wherein: the fibers of the fiber material include carbon fiber, glass fiber or kevlar fiber; the thermosetting resin of the fiber material includes epoxy resin or phenolic resin; The thermoplastic resin includes thermoplastic polyurethane, polypropylene, polyvinyl chloride, polyester, acrylic, polyetheretherketone, polyetherketoneketone, polyetherimide or polytetrafluoroethylene; the thermoplastic resin includes thermoplastic Epoxy resin; and the fiber cloth of the fiber material is woven or non-woven. The method for fixing items using fiber resin fasteners as described in claim 1, wherein: the fiber of the fiber composite nail includes carbon fiber, glass fiber or kevlar fiber; and the base material of the fiber composite nail includes thermosetting resin, Thermoplastic resin, thermoformable resin, carbon plastic-based resin or metal. The method of fixing items using fiber resin fasteners as described in claim 4, wherein: the thermosetting resin includes epoxy resin or phenolic resin, and the thermoplastic resin includes thermoplastic polyurethane, polypropylene vinyl, polyvinyl chloride, polyester, acrylic, polyetheretherketone, polyetherketoneketone, polyetherimide, polytetrafluoroethylene, the thermoplastic resin includes thermoplastic epoxy resin and the metal includes Iron, aluminum or their alloys. The method of fixing items using fiber resin fasteners as described in claim 1 or 3, wherein: in step 3, the fiber composite nail is penetrated before the perforation, and the fiber composite nail is composited with the fiber and the base material. into a vertical nail shape, or the flat fixing part is formed on one side first. A fiber product, which includes: at least two layers of fiber materials fixed with a fiber composite nail. The fiber materials are cured and formed sheets impregnated with resin fiber boards or cloths. Each fiber material includes at least one perforation and the perforation positions are opposite to each other. ; And the fiber composite nail is composed of a fiber bundle and a base material, the fiber bundle extends in an axial direction and covers the base material, and a partial section of the fiber composite nail is accommodated in the perforation, and the fiber The bundle is a continuous fiber, and both ends of the fiber composite nail include a flat fixing portion with a larger diameter than the through hole, wherein the angle between the fiber bundle contained in the fiber composite nail and the fiber arrangement of the fiber material is at least greater than 60 degrees. The fiber product according to claim 7, wherein: the fiber material and the fiber bundle are carbon fiber, glass fiber or Kevlar fiber. The fiber product according to claim 7, wherein the impregnated fiber material resin includes thermosetting resin, thermoplastic resin or thermoplastic resin. The fiber product according to claim 7, wherein the base material in the fiber composite nail includes thermosetting resin, thermoplastic resin, thermoplastic resin, carbon plastic-based resin or metal. The fiber product according to claim 9 or 10, wherein: the thermosetting resin includes epoxy resin or phenolic resin, and the thermoplastic resin includes polypropylene, polyvinyl chloride, polyester, acrylic, polyether ether ketone, polyether Imide or polytetrafluoroethylene, the thermoplastic resin includes thermoplastic epoxy resin and the metal includes iron, aluminum or alloys thereof. The fiber product according to claim 7, wherein the fiber composite nail is made of fiber bundles covering the base material, or the fiber fabric of the base material is wound into a columnar shape.

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