Optimization of screw design on fiber breakage and dispersion in injection molded bamboo-fiber-reinforced polypropylene

Akira Inoue, Tatsuya Tanaka, Yoshihiko Arao, Hiroshi Taguchi, Yasutake Sawada

研究成果: Article査読

抄録

Injection molding of fiber-reinforced thermoplastics (FRTP) leads to fiber breakage and in tum deterioration of mechanical properties of the molded parts. In this paper, we propose an effective screw geometry for improving both fiber dispersion and residual fiber length. By evaluating four types of screws by investigation of the molded specimens, we found that the screw geometry in the compression zone had a dominant effect on the residual fiber length, and that choosing the proper geometry for the melting and mixing process was the most important factor for improving both fiber dispersion and residual fiber length. The screw improves both properties at the same time owing to the appropriateness of its geometry for both the melting and mixing zone. Our experimental observations were compared with the results of flow analysis and consistency was observed.

本文言語English
ページ(範囲)38-46
ページ数9
ジャーナルKOBUNSHI RONBUNSHU
71
1
DOI
出版ステータスPublished - 2014 1月
外部発表はい

ASJC Scopus subject areas

  • 化学工学(その他)
  • 材料科学(その他)
  • 環境科学(全般)
  • ポリマーおよびプラスチック

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