JPH0899380A - Insert element for integrating structure composed of fluoroplastic and other structure and production thereof - Google Patents

Abstract

PURPOSE: To obtain insert element for integrating a structure composed of a fluoroplastic and a structure to be integrated with said structure composed of a resin incapable of being integrated with the fuoroplastic by thermal fusion or solvent fusion. CONSTITUTION: An insert element 1 is equipped with a resin element 4 fixed to the single surface of a porous heat-resistant film 2 and capable of being integrated with a structure F composed of a fluoroplastic and a resin element 6 fixed to the other surface of the film 2 and capable of being integrated with a structure X to be integrated. By this constitution, the structures F, X can be integrated through the insert element 1. The integrated article integrated by using the insert element 1 is high in tensile strength and develops effect withstanding the use under high temp. environment. Further, the surface treatment process of the respective structures can be omitted and the aesthetic appearance of the integrated article is not damaged and a problem such as bonding deterioration is not generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for integrating a structure made of a fluorine-based resin and a structure to be integrated made of a resin that cannot be integrated with the structure by heat fusion or solvent fusion. And the manufacturing method thereof, and an integrated product using the inclusion.

[0002]

2. Description of the Related Art It has been difficult to integrate a structure made of a fluorine-based resin and a structure made of another resin by heat fusion or solvent fusion. Therefore, when integrating them, conventionally, these structures are previously coated with an organic solvent containing an active metal, or subjected to surface treatment by corona discharge or the like, and then bonded with an adhesive such as an epoxy resin. Was.

[0003]

However, these adhesives have the problems that they require a step of surface treatment as described above and have a relatively low adhesive strength. Further, since the adhesive is used, there is a problem that the adhesive or the organic solvent remains on the adhesive surface and cannot be used in a high temperature environment. In addition, when the surface of the structure made of a fluorine-based resin is roughened by the above-mentioned means, the surface is discolored to yellowish brown, and there is a problem that the appearance is spoiled. Further, the structure made of a fluorine-based resin whose surface is roughened by the above means has a problem that the adhesive deterioration gradually occurs due to the irradiation of ultraviolet rays. The present invention has been made in view of the above problems of the prior art, and an interposer for solving these problems and integrating these structures, a manufacturing method thereof, and further the interposition. The object is to provide an integrated body.

[0004]

The above object can be achieved by an interposer according to the present invention, a method for producing the interposer, and an integrated product using the interposer. That is, in summary, the present invention comprises a structure made of a fluorine-based resin and a resin that cannot be integrated with the structure by heat fusion or solvent fusion, and is to be integrated into the structure. A structure for integrating a porous heat-resistant film and a structure made of the fluorine-based resin, which is integrated with one side of the porous heat-resistant film. The resin body adhered in the state of being exposed to the other side and the resin body which can be integrated with the structure to be integrated are impregnated into the other surface side of the porous heat-resistant film and fixed in the state of being exposed to the other surface side. An interposer characterized by comprising a resin body.

[0005] Then, this interposer impregnates one surface side of the porous heat-resistant film with a step of preparing a porous heat-resistant film and a melt made of a resin that can be integrated into a structure of a fluorine-based resin. Together with the step of fixing in a state of being exposed on the one side, and integrally with a structure to be integrated which is made of a resin which cannot be integrated with the structure by heat fusion or solvent fusion and which is to be integrated with the structure. The method of manufacturing an interposer comprises a step of impregnating the other surface side of the porous heat-resistant film with a melted resin that can be made into a resin and fixing the porous heat-resistant film while exposing the other surface side.

Further, as a result, a porous heat-resistant film is provided between the structure made of a fluororesin and the structure to be integrated made of a resin that cannot be integrated with the structure by heat fusion or solvent fusion. And a resin body that can be integrated with the structure made of the fluorine-based resin, is impregnated on one side of the porous heat-resistant film and is fixed so as to be exposed on the one side, and the structure to be integrated. An interposer having a resin body that is impregnated into the other surface side of the porous heat-resistant film and is fixed to the other surface side so as to be exposed to the other surface side. An integrated product is obtained which is characterized in that it is integrated on each surface of the interposer.

[0007]

In the interposer according to the present invention, each resin body that can be integrated with each structure is exposed on each surface of the porous heat-resistant film, and moreover, these are applied to the porous heat-resistant film. Each has an anchoring effect. Therefore, the structure made of the fluorine-based resin and the structure to be integrated are integrated with the resin bodies of the interposition body by interposing the interposition body. Further, the integrated product using this interposer has higher tensile strength than the integrated product of the above-mentioned conventional adhesive, and can be used even in a high temperature environment. Furthermore, the step of surface-treating the structure can be omitted, the aesthetic appearance is not impaired, and problems such as adhesion deterioration do not occur.

[0008]

EXAMPLES An example of an interposer according to the present invention, a method for producing the same, and an integrated product using the same will be described below, but the present invention is not limited to the following examples. It goes without saying that various modifications can be made and implemented within the technical idea of the present invention. FIG. 1 shows a state in which a structure made of a fluorine-based resin, an interposer according to the present invention, and a structure made of a resin that cannot be integrated with the fluorine-based resin by heat fusion or solvent fusion are separated. It is sectional drawing which shows one Example. Referring to FIG. 1, a polyvinylidene fluoride (hereinafter referred to as P
A rectangular structure F made of a fluorine-based resin (referred to as VdF) is provided. Further, on the right end side of the figure, for example, a rectangular structure X made of polyethylene, which cannot be integrated with the structure F by heat fusion or solvent fusion, is provided. The intervening body 1 according to the present invention is arranged between them.

The interposer 1 contains continuous porous polytetrafluoroethylene (hereinafter referred to as E-PTFE).
, A porous heat-resistant film 2 made of a film material having a thickness of 0.08 mm, for example. This E-PTFE is obtained by forming a powder of polytetrafluoroethylene (hereinafter referred to as PTFE) together with an auxiliary agent into a film-like body, and further stretching this. A resin body 4 made of PVdF that can be integrated with the structure F is formed on one surface side (left surface side in the drawing) of the film 2. The resin body 4 may be, for example, a tetrafluoroethylene-vinylidene fluoride copolymer (hereinafter V
DF), or a mixture of PVdF and VDF, and further PVdF and polymethylmethacrylate (hereinafter PMMA).
(Referred to as) can be replaced. A resin body 6 made of polyethylene that can be bonded to the structure X is formed on the other surface side (the right surface side in the drawing) of the film 2.

FIG. 2 is an enlarged sectional view of a dotted line portion A of the interposer 1 shown in FIG. This FIG. 2 is exaggerated for ease of understanding, and more detailed with reference to FIG. 2, the porous heat-resistant film 2 has a large number of particles having a diameter of 1 μm or less on each surface and inside thereof. 21 are formed so as to be continuous on the surface of the sea. Then, a melt obtained by dissolving PVdF in an organic solvent such as N-methyl-2-pyrrolidone is applied to one surface side (left surface side in the drawing) of the film 2 to impregnate the inside of the hole 21, The resin body 4 is formed by fixing the one side by heating or drying. In addition to this method, for example, a molten liquid obtained by heating PVdF may be impregnated and fixed in the holes 21.
The resin body 4 has an exposed layer 4a exposed on one side of the film 2.
And a portion of the resin 4b impregnated and fixed in the hole 21 and continuing from the exposed layer 4a. As a result, the resin body 4 is held on the film 2 by the anchoring effect of the resin 4b portion.

In addition, a molten liquid obtained by heating and melting polyethylene is impregnated into a large number of holes 21 on the other surface side (the right surface side in the figure) of the film 2 and then cooled or radiated to fix it. The resin body 6 is formed by. In addition to this method, for example, a molten solution in which polyethylene is dissolved in a chilesin-based organic solvent may be applied to the other surface side of the film 2 so as to be impregnated and fixed in the holes 21. The resin body 6 is provided with an exposed layer 6a and a portion of the resin 6b that continues from the exposed layer 6a with which the holes 21 are impregnated, and is retained by the membrane 2 by the anchoring effect of the portion of the resin 6b.
In the figure, the portions of the resin 4b and the resin 6b described above are impregnated only in the vicinity of the respective surfaces of the film 2, but not limited to this, for example, the resin 4 and the resin 6 may be impregnated.
It is also possible to fill the holes 21 of the membrane 2 with. In this way, the resins 4b and 6b come into contact with each other at any position of the sea-surface-shaped holes 21 in the film 2. Further, the mechanical strength of the interposer 1 depends substantially on the mechanical strength of the impregnated and fixed resins 4 and 6. This interposer 1
Since the resin bodies 4 and 6 are fixed to both surfaces of the film 2 as described above, the structure body F and the structure body X, which cannot be integrated by the conventional technique, are separated by the intervening body 1 Through the above, it can be integrated by heat fusion or solvent fusion.

FIG. 3 is a flow chart of a method of manufacturing an interposer according to the present invention. The method for manufacturing the inclusion will be described with reference to FIG. 3. First, the porous heat resistant film 2 is prepared. And this porous heat-resistant film 2
On one side thereof, a molten liquid made of a resin that constitutes the resin body 4 that can be integrated with the structure F of the fluorine-based resin is impregnated, and is fixed so as to be exposed on the one side. As a result, the resin body 4 is obtained. The melt can be formed by heating and melting a resin that can be integrated with the structure F of the fluorine-based resin or dissolving it in a suitable solvent. Next, a resin body 6 composed of a resin that cannot be integrated with the fluorine-based resin by heat fusion or solvent fusion, and that can be integrated with the structure X to be integrated with the structure F is formed. The other surface of the porous heat-resistant film 2 is impregnated with the molten liquid containing the resin described above, and the porous heat-resistant film 2 is fixed while being exposed to the other surface.
Thereby, the resin body 6 is obtained. The melt can be obtained by heating and melting a resin that can be integrated with the structure X to be integrated or by dissolving it in a solvent. in this way,
The intervening body according to the present invention can be obtained by the manufacturing method including the steps of ,.

FIG. 4 is a sectional view showing an embodiment in which the structure F shown in FIG. 1, the interposer 1 according to the present invention, and the structure X are integrated. Referring to this figure, the integrated body 8 includes the structure F and the structure X shown in FIG.
And are heated in an environment of about 150 ° C. for about 2 minutes via the intervening body 1, and 1.5 kg /
It is integrated by applying a pressure of square mm. As a result, the structure F is heat-sealed to the exposed layer 4a of the interposer 1, and the structure X is heat-sealed to the exposed layer 6a of the interposer 1. In addition to the above heat fusion, solvent fusion may be performed between the structure F and the interposer 1 or between the structure X and the interposer 1. In addition, the hole 2 of the interposer 1
The inside of 1 is filled with resin bodies 4 and 6. In this integrated product 8, the tensile strength of the structures F and X was measured and found to be 1 to 2 kg / square mm. For comparison with this, a structure F and a structure X having the same shape were both surface-treated, and these were adhered with an epoxy resin, and the result of the measurement as described above was 0.5 to 1 kg / square mm. . Therefore, the tensile strength of the integrated product 8 is much higher. Further, unlike the conventional integration, this integrated product 8 does not use an adhesive or an organic solvent, so that these do not remain on the adhesive surface as before, and therefore can be used even in a high temperature environment. Further, since the step of surface-treating the structures F and X can be omitted, productivity is improved, aesthetics are not impaired, and problems such as adhesion deterioration do not occur.

In addition to the method described above, for example, injection molding can be used as the method of manufacturing the integrated product 8. That is, first, the structure F made of a fluorine-based resin is prepared. Next, the interposer 1 is made. For that purpose, a step of preparing the porous heat-resistant film 2 and impregnation of one surface side of the porous heat-resistant film 2 with a melt composed of a resin that constitutes the resin body 4 that can be integrated with the structure F. And the step of forming the resin body 4 by fixing it while exposing it to the one surface side, and the fluorine-based resin made of a resin that cannot be integrated by heat fusion or solvent fusion, and the structure F
Into the structure to be integrated X to be integrated into the integrated structure X, the other surface side of the porous heat-resistant film 2 is impregnated with a molten liquid made of a resin forming the resin body 6 that can be integrated, and The step of forming resin body 6 by fixing it in an exposed state gives intermediate body 1. Next, the structure F made of the fluorine-based resin and the resin body 4 formed on one side of the porous heat resistant film 2 are integrated. Further, on the other surface side of the porous heat-resistant film 2, the resin forming the integrated structure X is injection-molded to form the integrated structure X. Moreover, together with this, the resin body 6 formed on the other surface side of the porous heat-resistant film 2 is integrated with the heat and pressure during the injection molding. Integral object 8 as described above
Can be obtained. Further, the integrated product 8 obtained by injection-molding the structure X to be integrated has the above-mentioned effects and further improves productivity because it is not necessary to separately produce the structure X. It also has the effect of forming a complicated shape that bites into.

Further, the resins constituting the structures F and X, the resins which can be integrated with the resins, and the porous heat resistant film 2 are not limited to the above-mentioned materials. For example, the fluorine-based resin forming the structure F is PTF.
E, polychlorotrifluoroethylene (hereinafter PCTFE
), Tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (hereinafter referred to as PFA), tetrafluoroethylene-hexafluoropropylene copolymer (hereinafter referred to as FEP), tetrafluoroethylene-
Ethylene copolymer (hereinafter referred to as ETFE), PVdF,
Polyvinyl fluoride (hereinafter referred to as PVF), chlorotrifluoroethylene-ethylene copolymer (hereinafter referred to as ECT)
FE), a tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl vinyl ether copolymer (hereinafter referred to as EPE), or a mixture thereof,
Further, an amorphous fluorine-based resin (Teflon AF manufactured by DuPont or Cytop manufactured by Asahi Glass Co., Ltd.) can be used.

The resin body 4 which can be integrated with the structure F is basically the same resin as the fluorine-based resin forming the structure F. In this case, since most of them are heat-meltable resins, they can be heated and melted to form the resin body 4 on the film 2 by the above means.
Further, PVdF or an amorphous fluorine-based resin is soluble in an organic solvent, so that the melt can be applied to the film 2. For example, by using PFA or FEP for the resin body 4 with respect to the structure F of PTFE, other than the resin forming the structure F in the resin body 4, heat fusion with the structure F, solvent fusion The resin body 4 which can be attached may be used. The resin constituting the structure X is, for example, an olefin resin such as polyethylene, polypropylene, or polymethylpentene, a styrene resin such as polystyrene, a vinyl resin such as polyvinyl chloride or polyvinyl acetate, or a polymethylmethacrylate. , Acrylic resin such as polyacrylonitrile, polyacetal, polyphenylene ether, polycarbonate, polyether ether ketone, polyethylene terephthalate, polybutylene terephthalate,
Examples thereof include engineering plastic resins such as polyarylate, thermotropic liquid crystal polymer, polyamide, thermoplastic polyimide, polyphenylene sulfide, and polyether sulfone, and resins such as thermoplastic elastomer such as polyurethane. Further, the resin forming the resin body 6 is basically the same as the resin forming the structure X. Note that, for example, a structure X of polyethylene
On the other hand, it is also possible to use a resin body 6 capable of heat fusion or solvent fusion to the structure X, such as using a polypropylene resin body 6.

Further, the above-mentioned structure F is PTFE or PFA.
Or FEP, and the structure X is ETFE or P
In the case of VdF, both of them are fluorine-based resins, but ETFE or PVdF cannot be integrated with these resins of the structure F by heat fusion or solvent fusion, and therefore, these are added to the structure X. ETFE or PVdF can be adapted. In other words, PTFE, PF
Since the structure F of A or FEP and the structure X of ETFE or PVdF can select the resin bodies 4 and 6 which can be integrated with these structures F and X from the above-mentioned materials, respectively, the selected resin body 4 , 6 can be integrated. Further, as the porous heat-resistant film 2, in addition to the above-mentioned E-PTFE, for example, a fiber made of PTFE, carbon fiber, aramid fiber, further made of heat-resistant fiber such as glass fiber, a film-like body, a woven fabric. Cloth or non-woven fabric can be used.

[0018]

As described above, the structure made of the fluorine-based resin and the structure made of the resin which cannot be integrated with the fluorine-based resin by heat fusion or solvent fusion are interposed by the present invention. There is an effect that they can be integrated by passing through the body. In addition, this interposition body has, on each surface of the porous heat-resistant film, a melt of resin that can be integrated with a structure made of a fluorine-based resin and a melt of resin that can be integrated with the structure to be integrated. It is obtained by impregnating and fixing. Further, the integrated product integrated by using this interposition body has a high tensile strength and has an effect that it can be used even in a high temperature environment. Further, it is possible to omit the step of surface treatment of each structure, and not to impair the aesthetic appearance, and to prevent problems such as adhesion deterioration.

[Brief description of drawings]

FIG. 1 shows a structure made of a fluorine-based resin, an interposer according to the present invention, and a structure made of a resin that cannot be integrated with the fluorine-based resin by heat fusion or solvent fusion. Sectional view showing an embodiment

FIG. 2 is an enlarged sectional view of a dotted line portion A of the interposer shown in FIG.

FIG. 3 is a flowchart of a method of manufacturing an interposition body according to the present invention.

FIG. 4 is a structure F, an interposer, and a structure X shown in FIG.
Sectional drawing which shows one Example of the state where and are integrated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Interposer 2 Porous heat-resistant film 21 Pore F Structure made of fluorine-based resin 4 Resin body 4a that can be integrated with structure F 4a Exposed layer of resin body 4b Impregnated portion of resin body 4 Forming structure F Structure 6 made of a resin that cannot be integrated with a fluorine-based resin by heat fusion or solvent fusion 6 Resin body that can be integrated with structure X 6a Exposed layer of resin body 6b Impregnated portion of resin body 6 Integrated body 8

Claims (3)

[Claims] 1. A structure made of a fluorine resin and a structure to be integrated which is made of a resin which cannot be integrated with the structure by heat fusion or solvent fusion and which is to be integrated with the structure. Integrated with a porous heat resistant film,
A resin body, which can be integrated with the structure made of the fluorine-based resin, is impregnated on one side of the porous heat-resistant film and is fixed so as to be exposed on the one side, and integrated with the structure to be integrated. And a resin body fixed to the other surface of the porous heat-resistant film, the resin body being impregnated into the other surface of the porous heat-resistant film and being fixed to the other surface of the porous heat-resistant film. 2. A step of preparing a porous heat-resistant film, and impregnating one surface side of the porous heat-resistant film with a melt composed of a resin that can be integrated with a structure of a fluorine-based resin and at the same time applying to the one surface side. The step of fixing in an exposed state and the resin that cannot be integrated with the structure by heat fusion or solvent fusion, and the resin that can be integrated with the structure to be integrated that is to be integrated with the structure. And a step of impregnating the other surface side of the porous heat-resistant film with the melt and fixing the same in a state of being exposed to the other surface side. 3. A porous heat-resistant film is provided between a structure made of a fluorine-based resin and a structure to be integrated made of a resin that cannot be integrated with the structure by heat fusion or solvent fusion. A resin body, which can be integrated with a structure made of a fluorine-based resin, is impregnated on one side of the porous heat-resistant film and is fixed in a state of being exposed on the one side, and is integrated with the structure to be integrated. And an interposer having a resin body that is impregnated on the other surface side of the porous heat-resistant film and is fixed to the other surface side in an exposed state. An integrated product characterized by being integrated on each side of.