Origin of Strong Damping for Highly-Entangled Polyisobutylene in Shear

• Yoshikawa Katsuyuki

  Department of Material Chemistry, Kyoto University

• Kabeya Takumi

  Department of Material Chemistry, Kyoto University

• Horinaka Jun-ichi

  Department of Material Chemistry, Kyoto University

• Takigawa Toshikazu

  Department of Material Chemistry, Kyoto University

抄録

We report the stress relaxation behavior of a highly entangled polyisobutylene (PIB) melt in shear and uniaxial elongation. In shear the damping function of the PIB melt agrees well with the Doi-Edwards (DE) prediction when an adhesive is applied to avoid a slip at the sample-fixture interface. The damping function in uniaxial elongation also agrees with the DE prediction. However, the PIB melt shows a stronger damping in shear than the DE prediction when no adhesive is used. In the transient zone before reaching to the preset strains for stress relaxation the stress growth curve for the melt without adhesive coincides with the curve for "with-adhesive" at small strains, but branching from the growth curve for "with-adhesive" occurs at a certain strain.

収録刊行物

• 日本レオロジー学会誌

  日本レオロジー学会誌 43 (5), 151-156, 2016

  一般社団法人 日本レオロジー学会

キーワード

• Polyisobutylene
• Highly entangled melt
• Stress relaxation
• Damping function

詳細情報

• CRID: 1390001205096555008
• NII論文ID: 130005116974
• NII書誌ID: AN00198812
• DOI: 10.1678/rheology.43.151
• ISSN: 21864586
• ISSN: 03871533
• NDL書誌ID: 027025732
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027025732
• Web Site: https://www.jstage.jst.go.jp/article/rheology/43/5/43_151/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可