JP5304636B2 - レーザー溶着用熱可塑性樹脂射出成形体 - Google Patents
レーザー溶着用熱可塑性樹脂射出成形体 Download PDFInfo
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- JP5304636B2 JP5304636B2 JP2009501130A JP2009501130A JP5304636B2 JP 5304636 B2 JP5304636 B2 JP 5304636B2 JP 2009501130 A JP2009501130 A JP 2009501130A JP 2009501130 A JP2009501130 A JP 2009501130A JP 5304636 B2 JP5304636 B2 JP 5304636B2
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- thermoplastic resin
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Images
Classifications
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/02—Ceramics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
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- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
(1)熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料を合わせた状態でレーザー光の照射により熱可塑性樹脂を加熱溶融させて局所的な発泡を起こすことにより、熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料とを溶着接合する方法に使用されるレーザー溶着用熱可塑性樹脂射出成形体であって、射出成形体が3.5以下の収縮異方性を有すること、および熱可塑性樹脂が鎖状分子100原子当たり4個以上のアミド結合を持つポリアミド重合体を含むことを特徴とするレーザー溶着用熱可塑性樹脂射出成形体。
(2)熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料を合わせた状態でレーザー光の照射により熱可塑性樹脂を加熱溶融させて局所的な発泡を起こすことにより、熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料とを溶着接合する方法に使用されるレーザー溶着用熱可塑性樹脂射出成形体であって、射出成形体が3.5以下の収縮異方性を有すること、および熱可塑性樹脂がエステル結合を主鎖に持つ重合体を含むことを特徴とするレーザー溶着用熱可塑性樹脂射出成形体。
L 樹脂の流れ方向(金型寸法:100mm)
W 直角方向(金型寸法:100mm)
2 熱可塑性樹脂射出成形体の試験片
3 熱可塑性樹脂射出成形体とは異なる材料の試験片
4 レーザー光の照射により溶着した部分
5 レーザー光の照射の方向
w 熱可塑性樹脂射出成形体とは異なる材料の試験片の幅(30mm)
d 熱可塑性樹脂射出成形体とは異なる材料の試験片の厚さ(2mm)
本発明は、熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料を合わせた状態でレーザー光の照射により熱可塑性樹脂を加熱溶融させて局所的な発泡を起こすことにより、熱可塑性樹脂射出成形体と、熱可塑性樹脂射出成形体とは異なる材料とを溶着接合する方法に使用されるレーザー溶着用熱可塑性樹脂射出成形体に関するものである。本発明における熱可塑性樹脂射出成形体とは異なる材料とは、レーザー光による接合に適切な熱可塑性樹脂以外の材料であれば特に限定されないが、一般に金属、セラミック、またはガラスの材料から選択されることが好ましい。
本発明において、熱可塑性樹脂の鎖状分子100原子当たりのアミド結合の数の計算は、ポリアミド重合体分子中の繰り返し単位を認定し、この繰り返し単位中の分子中の鎖の骨格をなす原子の数とアミド結合の数をカウントし、鎖状分子100原子当たりのアミド結合の数に換算することによって求められる。例えばポリアミド重合体がナイロン6の場合、
ナイロン6の構造式
の繰り返し単位を有するが、この一つの繰り返し単位においては6個の炭素原子と1個の窒素原子が分子中の鎖の骨格をなす原子となり、そして1個のアミド結合を有することとなるので、一つの繰り返し単位内で鎖状分子7原子当たり1個のアミド結合を持つことになる。従って、ナイロン6は、鎖状分子100原子当たり14.3個のアミド結合を持つポリアミド重合体になる。
なお、ポリアミド重合体分子が環構造を有する場合、環における鎖の骨格をなす原子とはその環の結合部位の2個の原子と、当該2個の原子間の原子数が最短となる2個の原子間の原子である。例えばポリアミド重合体がMXD−6ナイロンである場合、
MXD6ナイロン構造式
の繰り返し単位を有するが、この一つの繰り返し単位においては、矢印部分の三つの炭素原子が環における鎖の骨格をなす原子となり、そして2個のアミド結合を有することになるので、一つの繰り返し単位内で鎖状分子13原子当たり2個のアミド結合を持つことになる。従って、MXD6ナイロンは、鎖状分子100原子当たり15.4個のアミド結合を持つポリアミド重合体になる。
収縮異方性 = (直角方向の収縮率)/(流れ方向の収縮率)
収縮異方性を求める平板の金型キャビティ寸法は100mm×100mm×2mmであり、フィルムゲートで成形される。収縮率は射出成形後の成形品の実寸と金型キャビティ寸法から求めることができる。
・ナイロン6(NY6)は東洋紡ナイロンT―800(東洋紡績(株))を使用した。
・ナイロン12(NY12)はダイアミドL1801(ダイセル・ヒュルス(株))を使用した。
・ポリエーテルアミド共重合体(ポリアミドエラストマー)は、ダイアミドPEA、E40(ショアーD=40)とダイアミドPAE、E62(ショアーD=62)、(ダイセル・ヒュルス(株))を使用した。
・ナイロン6T/6Iは東洋紡ナイロンT−714E(東洋紡績(株))を使用した。
・ナイロンMXD6は東洋紡ナイロンT−600(東洋紡績(株))を使用した。
・ポリブチレンテレフタレート(PBT)はタフテックPBT N1000(三菱レイヨン(株))を使用した。
・ポリエチレンテレフタレート(PET)はRE530(東洋紡績(株))を使用した。
・ポリカーボネート(PC)はユーピロンS−1000(三菱エンジニアリングプラスチックス(株))を使用した。
・ポリアリレート(PAR)はUポリマーU1000(ユニチカ(株))を使用した。
・ポリアセタール(POM)はデルリン500(デュポン(株))を使用した。
・低密度ポリエチレン(低密度PE)はスミカセンG801(住友化学(株))を使用した。
・ガラス繊維はFT2A(オーエンスコーニング製造(株))を使用した。
・タルクはKSTW(勝鉱山鉱業所(株))を使用した。
・熱可塑性樹脂射出成形体とは異なる材料として、金属材料(SUS304のステンレス板)、ガラス材料(ソーダガラス製フロートガラス板)またはセラミック材料(酸化物系のアルミナ(Al2O3)製板)を使用した。
Claims (1)
- 熱可塑性樹脂射出成形体と、金属材料を合わせた状態でレーザー光の照射により熱可塑性樹脂を加熱溶融させて局所的な発泡を起こすことにより、熱可塑性樹脂射出成形体と、金属材料とを溶着接合することによって得られるレーザー溶着接合体であって、射出成形体が3.5以下の収縮異方性を有すること、および熱可塑性樹脂が鎖状分子100原子当たり4個以上のアミド結合を持つポリアミド重合体を含むことを特徴とするレーザー溶着接合体。
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JP2012158297A (ja) * | 2011-02-02 | 2012-08-23 | Bridgestone Corp | タイヤ、及びタイヤの製造方法 |
JP5833323B2 (ja) * | 2011-03-11 | 2015-12-16 | 帝人株式会社 | 炭素繊維複合材料の接合部材の製造方法 |
WO2016117493A1 (ja) * | 2015-01-22 | 2016-07-28 | 三菱エンジニアリングプラスチックス株式会社 | レーザー溶着用部材及び成形品 |
IT201600118515A1 (it) * | 2016-11-25 | 2018-05-25 | Vincenzo Tagliaferri | Nuovo procedimento per la realizzazione di giunzioni di componenti in materiale polimerico o di materiale polimerico con materiale di altra natura. |
US20240017500A1 (en) * | 2022-07-14 | 2024-01-18 | Edison Welding Institute, Inc. | System and method for welding thermoplastic materials to glass |
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JPH09296053A (ja) * | 1996-03-06 | 1997-11-18 | Toray Ind Inc | 繊維強化熱可塑性樹脂成形品 |
JP2005231144A (ja) * | 2004-02-18 | 2005-09-02 | Denso Corp | レーザ溶着装置 |
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JP4104073B2 (ja) * | 2004-06-02 | 2008-06-18 | 財団法人名古屋産業科学研究所 | レーザを用いた部材の接合方法及び接合形成認識装置 |
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JPH09296053A (ja) * | 1996-03-06 | 1997-11-18 | Toray Ind Inc | 繊維強化熱可塑性樹脂成形品 |
JP2005231144A (ja) * | 2004-02-18 | 2005-09-02 | Denso Corp | レーザ溶着装置 |
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