Supercritical Water Cracking and Washing of Used Polymer.

• Tennoh T.

  Nishikawa Rubber Co., Ltd.,

• Enomot H.

  Department of Geoseience and Technology, Faculty of Engineering, Tohoku University

• Wakai C.

  Institute for Chemical Research, Kyoto University

• Nakahar M.

  Institute for Chemical Research, Kyoto University

書誌事項

タイトル別名

• Supercritical Water Cracking and Washin

抄録

A rubber polymer (EPDM, ethylene-propylene-diene-terpolymer) and its vulcanized rubber were cracked to paraffin oil (PO) in NaOH-containing supercrtitical water (SCW) at 420°C and 30 MPa. PO recovered as a hexane-soluble cracking component could be recycled as the rubber softener because sulfurs added to the rubber for the elasticity were washed out in SCW. The SCW polymer cracking is not oxidative but reductive. The ¹³C-NMR analysis of PO obtained by SCW D₂O cracking demonstrates that the terminal methyl carbons are deuterated as a clear indication of hydrogen supply by SCW.

収録刊行物

• 高圧力の科学と技術

  高圧力の科学と技術 7 1429-1431, 1998

  日本高圧力学会

キーワード

• supercritical water
• rubber
• cracking
• recycle
• reductive

詳細情報

• CRID: 1390282679358835840
• NII論文ID: 10002694312
• NII書誌ID: AN10452913
• DOI: 10.4131/jshpreview.7.1429
• COI: 1:CAS:528:DyaK1cXktFyqsbo%3D
• ISSN: 13481940
• ISSN: 0917639X
• NDL書誌ID: 4494258
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4494258
• 本文言語コード: en
• 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