Crystallization-rate of Saran

DOI

Bibliographic Information

Other Title
  • Saranの結晶化速度の研究
  • I. Influence of Crystallization Temperature
  • 第1報結晶化温度の影響

Description

In the extrusion of Saran, the crystallization-rate of molten polymer is controlled by extrusion conditions. The influence of temperature on the crystallization-rate, as measured by the density gradient tube method, is discussed. The crystallization-rate constant, k, decreases with the lowering of the temperature. The induction period of crystallization ττichanges with the temperature. The temperature at which the induction period is less than one second is estimated to be about 80-90°C This value agrees with the temperature reported by R. Boyer. In the relation between log ττiand 1/T, a break point was found at about 15°C and at the temperature below this point, ττi increases rapidly. This point agrees with the second-order transition point of Saran. However, in the relation between the specific volume of amorphous polymer and the temperature, the second-order transition point was not confirmed.

Journal

  • Kobunshi Kagaku

    Kobunshi Kagaku 16 (172), 495-498, 1959

    The Society of Polymer Science, Japan

Details 詳細情報について

  • CRID
    1390282681496728320
  • NII Article ID
    130004032118
  • DOI
    10.1295/koron1944.16.495
  • ISSN
    18848079
    00232556
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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