Dynamic Viscoelasticity for Nylon6 During Isothernal Crystallization

• KASHIHARA Hisahiko

  Dept. of Mat. Chem., Kyoto Univ. Minase Res. Lab., Sekisui Chemical Co., Ltd.

• TAKAHASHI Masaoki

  Dept. of Polym. Sci. and Eng., Kyoto Inst. of Tech.

• URAYAMA Kenji

  Dept. of Mat. Chem., Kyoto Univ.

• TAKIGAWA Toshikazu

  Dept. of Mat. Chem., Kyoto Univ.

Bibliographic Information

Other Title

• ナイロン６の等温結晶化過程の動的粘弾性
• ナイロン 6 ノ トウオン ケッショウカ カテイ ノ ドウテキネンダンセイ

Abstract

The variation of dynamic viscoelasticity during isothermal crystallization of Nylon6 is investigated. The time dependence of the crystallinity evaluated from DSC (x_H) is compared with that of the crystallinity defined by dynamic measurements (x_G) as (G_t - G₀)/(G_∞ - G₀) where G_t, G₀ and G_∞ are the moduli at concerning time, in the initial molten and fully crystallized states, respectively. The onset of the increase in x_G is retarded as compared with x_H, while x_G becomes identical with x_H in the later crystallization process. These features are commonly observed in Nylon6 and polybutene-1 varying significantly in viscoelasticity before crystallization as well as the size of spherulites. The relation between x_G and x_H is well explained by considering the morphological change of system resulting from the growth of spherulite domains.

Journal

• Journal of the Society of Materials Science, Japan

  Journal of the Society of Materials Science, Japan 54 (1), 56-59, 2005

  The Society of Materials Science, Japan

Keywords

• Isotheramal crystallization
• Viscoelasticity
• Nylon6
• Polybutene-1
• DSC

Details

• CRID: 1390001205417883520
• NII Article ID: 110006266383
• NII Book ID: AN00096175
• DOI: 10.2472/jsms.54.56
• ISSN: 18807488
• ISSN: 05145163
• NDL BIB ID: 7220971
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7220971
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed