抄紙型中間素材を用いたCF/PA6プレス射出ハイブリッド成形品の機械的特性評価

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タイトル別名
  • Evaluation of Mechanical Property of Press and Injection Hybrid Molded CF/PA6 Using Paper-Type Intermediate Material
  • ショウシガタ チュウカン ソザイ オ モチイタ CF/PA6 プレス シャシュツ ハイブリッド セイケイヒン ノ キカイテキ トクセイ ヒョウカ

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<p>In the press and injection hybrid molding of CFRTP, short or long fiber-reinforced thermoplastics are injected on the continuous fiber-reinforced thermoplastics that are used for the outer shell material. In a previous study, the interfacial bonding strengths between the injection material and the continuous fiber-reinforced thermoplastics were evaluated; it has been reported that the interfacial bonding strength was improved by inflowing the continuous fiber into the rib structure, however, the strength of the outer shell laminate was lowered due to the waviness of the continuous fiber that was inflowing into the rib structure. In the paper-type intermediate materials, reinforcing fibers and matrix resin fibers are dispersed by the paper-making method. By supplying the paper-type intermediate material into the interface between the injection material and the continuous fiber-reinforced thermoplastics, the paper-type intermediate material comes to inflow into the rib structure; and the improvement in the interfacial bonding strength, and the reduction of the waviness of the continuous fiber can be expected. In this study, to clarify the effects of the quantity of the paper-type intermediate material on the mechanical properties of the press and injection hybrid molded CF/PA6, T-shape tensile tests for interfacial bonding strength, and in-plane tensile tests for the strength of the outer shell laminate were conducted. Supplying the paper-type intermediate material into the interface between the injection material and the continuous fiber-reinforced thermoplastics resulted in higher interfacial bonding strength and higher tensile strength of the outer shell laminate due to smaller waviness of the continuous fiber.</p>

収録刊行物

  • 材料

    材料 67 (1), 114-120, 2018

    公益社団法人 日本材料学会

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