JP2021098307A - Composite molded article and grooved resin molded article - Google Patents
Composite molded article and grooved resin molded article Download PDFInfo
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- JP2021098307A JP2021098307A JP2019231272A JP2019231272A JP2021098307A JP 2021098307 A JP2021098307 A JP 2021098307A JP 2019231272 A JP2019231272 A JP 2019231272A JP 2019231272 A JP2019231272 A JP 2019231272A JP 2021098307 A JP2021098307 A JP 2021098307A
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- 229920005989 resin Polymers 0.000 title claims abstract description 40
- 239000011347 resin Substances 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 abstract description 4
- 239000011256 inorganic filler Substances 0.000 abstract description 3
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 3
- 238000005304 joining Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 description 6
- 229920000106 Liquid crystal polymer Polymers 0.000 description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- -1 polybutylene terephthalate Polymers 0.000 description 4
- 229920006324 polyoxymethylene Polymers 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Laser Beam Processing (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、複合成形品およびこの複合成形品を形成するための溝付き樹脂成形品に関する。 The present invention relates to a composite molded product and a grooved resin molded product for forming the composite molded product.
近年、自動車、電気製品、産業機器等をはじめとした分野では、二酸化炭素の排出量削減、製造コストの削減等の要請に応えるため、金属成形品の一部を樹脂成形品に置き換える動きが広がっている。これに伴い、樹脂成形品と金属成形品とを一体化した複合成形品が広く普及している。これに限らず、同種又は異種の材料からなる成形品を一体化した複合成形品も広く普及している。 In recent years, in fields such as automobiles, electrical products, and industrial equipment, there has been a growing movement to replace some metal molded products with resin molded products in order to meet demands for reducing carbon dioxide emissions and manufacturing costs. ing. Along with this, composite molded products in which a resin molded product and a metal molded product are integrated have become widespread. Not limited to this, composite molded products in which molded products made of the same or different materials are integrated are also widely used.
一の成形品と他の成形品とを一体化した複合成形品の製造方法として、例えば、特許文献１には、一方の樹脂成形品の表面に電磁放射線を照射することで該表面にナノ構造を形成し、その後、該表面に他方の樹脂成形品を接して充填、成形し、一体化させることが提案されている。 As a method for manufacturing a composite molded product in which one molded product and another molded product are integrated, for example, Patent Document 1 states that the surface of one resin molded product is irradiated with electromagnetic radiation to have a nanostructure on the surface. It has been proposed to contact the surface with the other resin molded product, fill it, mold it, and integrate it.
特許文献２には、ガラス繊維を含有する第１樹脂成形品の接合面にレーザにより溝を形成し、その接合面に第２樹脂を射出成型することで複合成形品とする技術が提案されている。
しかしながら、一の成形品と他の成形品とを接合したときの強度に関し、さらなる改良の余地がある。特に、樹脂成形品にガラス繊維等の無機充填剤が含まれていない場合にさらなる改良の余地がある。 However, there is room for further improvement regarding the strength when one molded product and another molded product are joined. In particular, there is room for further improvement when the resin molded product does not contain an inorganic filler such as glass fiber.
本発明は、以上のような課題を解決するためになされたものであり、その目的は、樹脂成形品にガラス繊維等の無機充填剤が含まれていない場合であっても、他の成形品と接合したときの強度をよりいっそう高めることの可能な複合成形品を提供することである。 The present invention has been made to solve the above problems, and an object of the present invention is to use another molded product even when the resin molded product does not contain an inorganic filler such as glass fiber. It is an object of the present invention to provide a composite molded product capable of further increasing the strength at the time of joining with.
本発明の目的は、下記によって達成された。
１） 部材Ａと樹脂Ｂにより一体化している複合成形品であって、該部材Ａは内部に管を有し、該管は、部材Ａと該樹脂Ｂとの接合部に存在する少なくとも２か所の孔と通じており、該管内には該樹脂Ｂが存在している複合成形品。
２） 内部に管を有する部材Ａであって、該管は成形品表面に存在する少なくとも２か所の孔と通じている成形品。
３） 前記少なくとも２か所の孔は、成形品が有する一つの面に存在する、前記２記載の成形品。
４） 前記２および３記載の成形品の製造方法であって、該管および孔をレーザ照射によって形成する成形品の製造方法。
An object of the present invention has been achieved by:
1) A composite molded product integrated with a member A and a resin B, the member A has a pipe inside, and the pipe is at least two existing at a joint between the member A and the resin B. A composite molded product that communicates with a hole in a place and has the resin B present in the pipe.
2) A member A having a tube inside, and the tube is a molded product that communicates with at least two holes existing on the surface of the molded product.
3) The molded product according to the above 2, wherein the at least two holes are present on one surface of the molded product.
4) The method for producing a molded product according to the above 2 and 3, wherein the tube and the hole are formed by laser irradiation.
本発明では、内部に管を有しその管が部材の接合部にある２か所の孔と通じることで通管孔を形成している部材Ａに対し、その通管孔を埋めるように別の樹脂Ｂを流し込むことで、部材Ａに対し樹脂Ｂからなる部分が環状のフックのような効果を発揮し、より強固に接合する複合成形品とすることができる。 In the present invention, the member A, which has a pipe inside and forms a pipe hole by communicating with the two holes at the joint of the members, is separately formed so as to fill the pipe hole. By pouring the resin B of the above, the portion made of the resin B exerts an effect like an annular hook with respect to the member A, and a composite molded product can be obtained in which the resin B is more firmly bonded.
以下、本発明の実施形態について詳細に説明するが、本発明は、以下の実施形態に何ら限定されるものではなく、本発明の目的の範囲内において、適宜変更を加えて実施することができる。なお、説明が重複する箇所については、適宜説明を省略する場合があるが、発明の要旨を限定するものではない。 Hereinafter, embodiments of the present invention will be described in detail, but the present invention is not limited to the following embodiments, and can be carried out with appropriate modifications within the scope of the object of the present invention. .. In addition, although the description may be omitted as appropriate for the parts where the description is duplicated, the gist of the invention is not limited.
＜複合成形品＞
本発明の複合成形品は、部材Ａと樹脂Ｂにより一体化している複合成形品であって、該部材Ａは内部に管を有し、その管が接合部に存在する少なくとも２か所の孔と通じており、そしてその管には樹脂Ｂが存在していることを特徴とする。
<Composite molded product>
The composite molded product of the present invention is a composite molded product in which a member A and a resin B are integrated, and the member A has a pipe inside, and the pipe has at least two holes in a joint. And is characterized by the presence of resin B in the tube.
＜部材Ａ＞
≪内部に存在する管≫
本発明の部材Ａは、内部に管が存在しており、その管の開口部は部材Ａの接合部である表面に存在する２か所以上の孔と通じている。図１および２は、部材Ａの内部に有する管を示している。
<Member A>
≪Tube existing inside≫
The member A of the present invention has a pipe inside, and the opening of the pipe communicates with two or more holes existing on the surface which is a joint portion of the member A. 1 and 2 show a tube inside the member A.
管は少なくとも２か所が、部材Ａが有する接合部に存在する孔と通じていればよく、図２で示すように３か所以上であってもよい。 The pipe may have at least two places communicating with holes existing in the joint portion of the member A, and may have three or more places as shown in FIG.
本発明の隣り合う孔の径は、０．１〜３ｍｍであることが好ましい。孔のピッチは、０．２〜３ｍｍであり、好ましくは０．５〜１ｍｍである。なお、管の径は、孔の径とほぼ同じである。 The diameter of adjacent holes of the present invention is preferably 0.1 to 3 mm. The hole pitch is 0.2 to 3 mm, preferably 0.5 to 1 mm. The diameter of the pipe is almost the same as the diameter of the hole.
管の長さは、０．２〜４０ｍｍであり、好ましくは０．２〜２０ｍｍである。第１成形品内部に存在する管の深さは、孔の存在する接合部から０．１〜２ｍｍであり、０．１〜１ｍｍであることが好ましい。 The length of the tube is 0.2 to 40 mm, preferably 0.2 to 20 mm. The depth of the tube existing inside the first molded product is 0.1 to 2 mm, preferably 0.1 to 1 mm, from the joint where the hole is present.
部材Ａは、レーザ照射により溝を形成できるものであれば特に限定されない。例えば熱可塑性樹脂として、ポリフェニレンスルフィド（ＰＰＳ）、液晶ポリマー（ＬＣＰ）、ポリブチレンテレフタレート（ＰＢＴ）、ポリアセタール（ＰＯＭ）、ポリカーボネート（ＰＣ）、ポリアミド（ＰＡ）等を挙げることができる。部材Ａは熱硬化性樹脂であってもよいし、金属やセラミックであってもよい。 The member A is not particularly limited as long as it can form a groove by laser irradiation. Examples of the thermoplastic resin include polyphenylene sulfide (PPS), liquid crystal polymer (LCP), polybutylene terephthalate (PBT), polyacetal (POM), polycarbonate (PC), polyamide (PA) and the like. The member A may be a thermosetting resin, a metal, or a ceramic.
≪レーザ照射による孔および管の形成方法≫
本発明の接合部となる部材Ａ表面にレーザの照射を行い、樹脂を部分的に除去することで、複数の孔を形成することができ、レーザ照射角度の違う少なくとも２か所の孔を部材Ａの内部で連結することによって管が得られる。
≪Method of forming holes and tubes by laser irradiation≫
By irradiating the surface of the member A to be the joint portion of the present invention with a laser and partially removing the resin, a plurality of holes can be formed, and at least two holes having different laser irradiation angles are formed as members. A tube is obtained by connecting inside A.
レーザの照射は、照射対象材料の種類やレーザ装置の出力等をもとに設定されるが、部材に適度のエネルギーを照射して溝を形成しないと、設定どおりの幅や深さの溝を形成することが難しかったりするため、複数回に分けて行うことが好ましい。 Laser irradiation is set based on the type of material to be irradiated, the output of the laser device, etc., but if the member is not irradiated with appropriate energy to form a groove, a groove with the set width and depth will be formed. Since it may be difficult to form, it is preferable to carry out the process in a plurality of times.
管の長さは、レーザ照射の角度、レーザ照射する位置によって適宜定めることができる。例えば、図１に示すように、２か所の孔を離して形成すると長い管を形成することができる。また図２に示すように３か所以上の孔を連結させることで、さらに管を長くすることができる。
部材Ａが熱可塑性樹脂では、レーザの吸収を向上させるために色素、染料等のレーザ吸収剤を添加することもできる。レーザ吸収剤としては、カーボンブラックが好ましい。
The length of the tube can be appropriately determined depending on the angle of laser irradiation and the position of laser irradiation. For example, as shown in FIG. 1, a long tube can be formed by forming the two holes apart from each other. Further, as shown in FIG. 2, the pipe can be further lengthened by connecting three or more holes.
When the member A is a thermoplastic resin, a laser absorber such as a dye or a dye can be added in order to improve the absorption of the laser. As the laser absorber, carbon black is preferable.
なお、孔、管の表面のラマン分光分析によって、樹脂の炭化層が存在することが確認できれば、孔、管がレーザ光照射によって形成されたものであると判断することができる。 If it can be confirmed by Raman spectroscopic analysis of the surfaces of the holes and tubes that a carbonized layer of resin is present, it can be determined that the holes and tubes are formed by laser light irradiation.
＜複合成形品＞
図３および４は本発明の複合成形品の概略拡大断面の模式図である。図３では、ほぼ一定間隔で孔が形成され、その孔の２か所が連結することによって管が形成され、その管内に樹脂Ｂが存在している。図４では、内部にランダムに形成した孔を有する第１成形品の管に樹脂Ｂが存在している。
<Composite molded product>
3 and 4 are schematic views of a schematic enlarged cross section of the composite molded product of the present invention. In FIG. 3, holes are formed at substantially regular intervals, and a tube is formed by connecting two of the holes, and the resin B is present in the tube. In FIG. 4, the resin B is present in the tube of the first molded product having holes randomly formed inside.
≪樹脂Ｂ≫
樹脂Ｂは、射出成形可能な樹脂であれば熱可塑性樹脂や熱硬化性樹脂の種類は特に問わない。例えば、ポリフェニレンスルフィド（ＰＰＳ）、液晶ポリマー（ＬＣＰ）、ポリブチレンテレフタレート（ＰＢＴ）、ポリアセタール（ＰＯＭ）、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリスチレン（ＰＳ）、ポリカーボネート（ＰＣ）、ポリアミド（ＰＡ）等を挙げることができる。
≪Resin B≫
As the resin B, the type of the thermoplastic resin or the thermosetting resin is not particularly limited as long as it is an injection-moldable resin. For example, polyphenylene sulfide (PPS), liquid crystal polymer (LCP), polybutylene terephthalate (PBT), polyacetylene (POM), polypropylene (PP), polyethylene (PE), polystyrene (PS), polycarbonate (PC), polyamide (PA). And so on.
＜複合成形品の形成方法＞
本発明の複合成形品は、成形によって得られる。ここで成形方法としては、熱板溶着、プレス加工、接着、塗装、メッキ、印刷等が挙げられるが、二重成形であることが好ましい。
<Method of forming composite molded products>
The composite molded product of the present invention is obtained by molding. Here, examples of the molding method include hot plate welding, press working, adhesion, painting, plating, printing, and the like, but double molding is preferable.
二重成形の場合、部材Ａを金型に入れ、この金型の内部に、孔を有する面を接合面として、樹脂Ｂを封入する。その際樹脂Ｂは管にも入り込み、この状態で冷却することにより複合成形品を形成することができる。 In the case of double molding, the member A is put into a mold, and the resin B is sealed inside the mold with the surface having holes as a joint surface. At that time, the resin B also enters the pipe and is cooled in this state to form a composite molded product.
二重成形は、樹脂Ｂを金型内部に封入する際の圧力により、管の内部まで充填することが容易である。管内部まで樹脂Ｂが充填されることにより、樹脂Ｂが環状となり、単に孔が掘られた状態よりもより強固な接合力を発揮する。 In double molding, it is easy to fill the inside of the pipe by the pressure when the resin B is sealed inside the mold. By filling the inside of the pipe with the resin B, the resin B becomes an annular shape and exerts a stronger bonding force than a state in which a hole is simply dug.
以下、本発明を実施例によりさらに詳細に説明するが、本発明はこれらの実施例によって限定されるものではない。なお、特に断りの無い限り、測定は２３℃５０％ＲＨの雰囲気下で行った。 Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. Unless otherwise specified, the measurement was carried out in an atmosphere of 23 ° C. and 50% RH.
＜実施例１＞
実施例において使用した材料は下記のとおりである。
≪部材Ａ≫
ＰＢＴ：ポリプラスチックス社製 ジュラネックス２００２ ＥＤ３００２
≪樹脂Ｂ≫
ＰＯＭ：ポリプラスチックス社製 ジュラネックスＭ４５０−４４ ＣＦ２００１
<Example 1>
The materials used in the examples are as follows.
≪Member A≫
PBT: Polyplastics Juranex 2002 ED3002
≪Resin B≫
POM: Duranex M450-44 CF2001 manufactured by Polyplastics Co., Ltd.
＜部材Ａの作製＞
≪試験片の作製≫
部材Ａは、ＡＳＴＭ Ｄ２５６のアイゾット試験片形状（Ｗ１２．７×Ｄ６．４×Ｌ６３．５ｍｍ）で作製した。
部材Ａを、下記成形条件で、ＡＳＴＭのアイゾット試験片金型に射出成形した。
ＰＢＴ：シリンダー温度２６０℃、金型温度８０℃
<Manufacturing of member A>
≪Preparation of test pieces≫
The member A was manufactured in the shape of an Izod test piece (W12.7 × D6.4 × L63.5 mm) of ASTM D256.
Member A was injection molded into an ASTM Izod test piece mold under the following molding conditions.
PBT: Cylinder temperature 260 ° C, mold temperature 80 ° C
ついでレーザ照射装置にて、照射径８０μｍレーザにより接合部に対して所定の角度（接合部の垂直方向に対して６０°および１２０°）から２か所の孔を形成し、図１の形状（ピッチ１．７ｍｍ）の部材Ａを作製した（図５および６）。
比較例１として、接合部に垂直（９０°）にレーザ照射で孔を形成した部材Ａを作製した。
Then, in a laser irradiation device, two holes were formed from a predetermined angle (60 ° and 120 ° with respect to the vertical direction of the joint) with respect to the joint by a laser having an irradiation diameter of 80 μm, and the shape shown in FIG. 1 ( A member A having a pitch of 1.7 mm) was produced (FIGS. 5 and 6).
As Comparative Example 1, a member A in which a hole was formed by laser irradiation perpendicularly (90 °) to the joint was produced.
≪レーザ照射条件≫
レーザ波長 ：１０６４ｎｍ
レーザ照射径：８０μｍ
照射機 ：キーエンス社製レーザ マーカー ＭＤ−Ｘ１５２０
レーザ出力 ：２２．５Ｗ
照射速度 ：２０ｍｍ／ｓ
≪Laser irradiation conditions≫
Laser wavelength: 1064 nm
Laser irradiation diameter: 80 μm
Irradiator: Keyence laser marker MD-X1520
Laser output: 22.5W
Irradiation speed: 20 mm / s
＜複合成形品の作製＞
上記で作製した試験片を、ＡＳＴＭ曲げ試験片金型を用い、樹脂Ｂよりシリンダー温度１９０℃、金型温度８０℃の条件にて二重成形を行い、図７のようなＡＳＴＭの曲げ試験片（１２．７×６．４×１２７ Ｄ７９０）ｍｍを作製した。接合部の断面積は、８１．３ｍｍ２（１２．７×６．４ｍｍ）である。
<Manufacturing of composite molded products>
The test piece produced above is double-molded from resin B using an ASTM bending test piece mold under the conditions of a cylinder temperature of 190 ° C. and a mold temperature of 80 ° C., and an ASTM bending test piece as shown in FIG. (12.7 × 6.4 × 127 D790) mm was prepared. The cross-sectional area of the joint is 81.3 mm 2 (12.7 x 6.4 mm).
＜接合強度測定＞
作製した複合成形品試料について、万能試験機を用いて、ＡＳＴＭの曲げ試験片の引張破壊強度を測定し、接合部の断面積より引張応力を算出した。結果を表１に示す。
破壊速度：１０ｍｍ／ｍｉｎ/
試験機 ：島津製作所製万能試験機 ＡＧ−２０ｋＮＸＤｐｌｕｓ
<Measurement of joint strength>
With respect to the produced composite molded product sample, the tensile fracture strength of the ASTM bending test piece was measured using a universal tester, and the tensile stress was calculated from the cross-sectional area of the joint. The results are shown in Table 1.
Destruction speed: 10 mm / min /
Testing machine: Shimadzu universal testing machine AG-20kNXDplus
表１から、第１成形品に管を有する本発明は、接合強度が改善されていることが分かる。 From Table 1, it can be seen that the present invention having the tube in the first molded product has improved joint strength.
１ 部材Ａ
２ 孔
３ 管
４ 接合部
５ 複合成形品
６ 樹脂Ｂ
Ｐ 引張試験の張力方向
1 Member A
2
P Tension direction of tensile test
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