Rheo-optical Raman study of microscopic deformation in high-density polyethylene under hot drawing

• Kida, Takumitsu

• Hiejima, Yusuke

• Nitta, Koh-hei

抄録

In situ observation of the microscopic structural changes in high-density polyethylene during hot drawing was performed by incorporating a temperature-controlled tensile machine into a Raman spectroscopy apparatus. It was found that the load sharing and molecular orientation during elongation drastically changed at 50°C. The microscopic stress of the crystalline chains decreased with increasing temperature and diminished around 50°C. Moreover, the orientation of the crystalline chains was greatly promoted above 50°C. These microscopic structural changes were caused by the thermal activation of the molecular motion within lamellar crystalline chains owing to the onset of relaxation of the crystalline phase. © 2015 Elsevier Ltd. All rights reserved.

Embargo Period 24 months

収録刊行物

• Polymer Testing

  Polymer Testing 44 30-36, 2015-07-01

  Elsevier

キーワード

• High-density polyethylene
• Hot drawing
• In situ
• Raman spectroscopy

詳細情報

• CRID: 1050001335942476032
• NII論文ID: 120005613967
• NII書誌ID: AA00362812
• ISSN: 01429418
• Web Site: http://hdl.handle.net/2297/42209
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles