Yield Process of Amorphous Polymers with Different Heat Treatments

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Other Title
  • 熱処理した非結晶性高分子材料の降伏過程
  • ネツ ショリ シタ ヒケッショウセイ コウブンシ ザイリョウ ノ コウフク カテイ

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Abstract

It has been shown that the yield process is very different between the annealed and quenched samples of amorphous polymers. Many slip lines appearing just before yielding cause a specimen necking near the peak stress in asreceived and annealed samples, while it occurs without visible formation of slip lines in quenched samples. To investigate this difference may promote the understanding on the yield mechanism of amorphous polymers. In this paper, the results mentioned previously were confirmed at tensile and shear tests and some mechanical properties related to the yielding were measured using as-received (AR) and quenched (Q) samples of amorphous polymers, PC, PVC, PMMA and PET. It was shown that (1) the values of tanδ are higher in Q than in AR samples, (2) the diffusion rate of methyl alcohol to PMMA is greater in Q than in AR samples, (3) the specific gravities of Q samples are smaller than those of AR ones and (4) the yield mechanism is very different between AR and Q samples under both tension and shearing.

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Details

  • CRID
    1390282680395935360
  • NII Article ID
    110006266240
  • NII Book ID
    AN00096175
  • DOI
    10.2472/jsms.53.327
  • COI
    1:CAS:528:DC%2BD2cXjt1egsLg%3D
  • ISSN
    18807488
    05145163
    http://id.crossref.org/issn/05145163
  • NDL BIB ID
    6892344
  • Web Site
    http://hdl.handle.net/2297/40968
  • Text Lang
    ja
  • Data Source
    • JaLC
    • IRDB
    • NDL
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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