Micromechanics Study of Tensile Strength Deterioration of Short Glass Fiber Reinforced Thermoplastics by a Slight Amount of Inorganic Addition Agent(Titanium Dioxide).

• YAMADA Katsuhiro

  Department of Aeronautics and Space Engineering, Faculty of Engineering, Tohoku University Product Research & Development Laboratories, Nippon Steel Chemical Co., Ltd.,

• SUZUKI Hiroshi

  Department of Aeronautics and Space Engineering, Faculty of Engineering, Tohoku University

• SEKINE Hideki

  Department of Aeronautics and Space Engineering, Faculty of Engineering, Tohoku University

Bibliographic Information

Other Title

• ガラス短繊維強化熱可塑性樹脂の微量無機添加物（酸化チタン）による引張強度低下に関するマイクロメカニックス的研究
• ガラス タンセンイ キョウカ ネツ カソセイ ジュシ ノ ビリョウ ムキ テン

Abstract

Tensile strength of injection-molded short glass fiber reinforced thermoplastics was remarkably decreased by the addition of a slight amount of titanium dioxide (TiO₂) . Generally it is explained that the strength deterioration is due to much shortening of glass fiber length under processing, since the hardness of TiO₂ is higher than that of glass fibers. In this study, the influence of the addition of TiO₂ (0.2 wt%) to short glass fiber reinforced polyamide 6 on the strength of glass fibers in the composite was investigated. The tensile strength of the composite containing TiO₂ was fairly lower than that of the composite without TiO₂, even if the glass fiber lengths in the composite were unchanged. However, numerous flaws were observed on the surface of glass fibers in the composite containing TiO₂. After tensile test of the composites, the pull-out lengths of glass fibers were measured and the variation of Weibull moduli was estimated by using the data based on the Weibull weakest-link theory. As a result, the value of scale parameter decreased markedly by the addition of TiO₂. Namely, it was found that the main factor of the strength deterioration of short glass fiber reinforced polyamide 6 containing TiO₂ was weakening of glass fibers.

Journal

• Journal of the Japan Society for Composite Materials

  Journal of the Japan Society for Composite Materials 21 (2), 61-68, 1995

  The Japan Society for Composite Materials

Details

• CRID: 1390282679598923392
• NII Article ID: 10002464280
• NII Book ID: AN00196748
• DOI: 10.6089/jscm.21.61
• ISSN: 18848559
• ISSN: 03852563
• NDL BIB ID: 3615363
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3615363
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed