成形加工
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
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22 巻, 3 号
選択された号の論文の14件中1～14を表示しています
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目次
追悼文
巻頭言
解説：特集　直接成形
海外だより
会議・見本市だより
製品・技術紹介
論文
  • CFRP廃材から抽出された炭素繊維を用いたCFRTPの圧縮成形
    木村 照夫, 井野 晴洋, 西田 優一, 青山 尚樹, 柴田 勝司
    2010 年 22 巻 3 号 p. 153-159
    発行日: 2010年
    公開日: 2010/07/24
    DOIhttps://doi.org/10.4325/seikeikakou.22.153
    ジャーナル フリー
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    This study investigated a compression molding method of carbon fiber reinforced thermoplastics (CFRTP) made of carbon fiber extracted from CFRP waste. The short carbon fibers were mixed with polyester fibers using a papermaking method to make the preform sheet of compression molding. The waste obtained from a textile water jet loom was used as a matrix material. The setting speed of each fiber during the papermaking process was regulated by using a dispersing agent to obtain the good dispersion of each fiber. Laminated preform sheets combined with polyester fibers and carbon fibers were compressed with heating at 300 ℃ and then the polyester fiber was melted as a matrix material. It was cleared from the experimental results that the mechanical properties of molded CFRTP largely depends on both the fiber dispersion and the content of carbon fiber in the preform.
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  • 一軸方向に熱収縮する二軸延伸共重合PETフィルムの製膜方法に関する研究
    春田 雅幸, 向山 幸伸, 多保田 規, 伊藤 勝也, 野々村 千里
    2010 年 22 巻 3 号 p. 160-167
    発行日: 2010年
    公開日: 2010/07/24
    DOIhttps://doi.org/10.4325/seikeikakou.22.160
    ジャーナル フリー
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    Heat shrinkable film made of stretched film is widely used for decorative labels by attaching on PET bottles with heat shrinkage by steam or dry heating. Trouble cancellation in the installation process of the PET bottle is necessary. The purpose of this study is development of uniaxially heat shrinkable co-polyester film that has strength both in the machine direction (MD) and transverse direction (TD). The film production was performed using sequential biaxial stretched process that combined roll stretching with TD stretching. Cast film was processed in the order of TD stretching-Anneal 1-MD stretching-Anneal 2.
    As a result, the heat shrinkable film that shrunk only in MD got high tensile strength both in MD and TD. The anneal 1 temperature over Tg (Glass transition temperature) of material resin was needed to obtain the heat shrinkable film shrunk in MD after TD stretching.
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