ポリエステル／イソシアネート樹脂塗膜の硬化挙動と泡欠陥発生への影響

• 古川 博康

  新日鐵住金(株)技術開発本部 君津技術研究部

• 金井 洋

  日鐵住金鋼板(株)鋼板開発技術部

書誌事項

タイトル別名

• Hardening Behavior of Polyester/ Iso-cyanate Resin Paint Film Heated on Steel Sheet and their Influence on Bubble Defect (Popping)

抄録

By using polyester/ iso-cyanate resin solutions as model paints, the relation between the hardening behavior of the paint film heated on the steel sheet and the maximum film thickness without bubble defect (the popping) occurring was examined by using the TBA (Torsional Braid Analysis) method. The results were as follows.<br>1)In the cure process of the paint film, two dimensional crosslinking reactions are firstly begun, and subsequently, three dimensional crosslinking reactions are begun. The evaporation of volatile elements such as solvents did not receive a big influence from the two dimensional crosslinking reactions, and was started being obstructed after the three-dimensional crosslinking reactions were begun.<br>2)In the comparison of the resin solutions, the lower the starting temperature of the three-dimensional crosslinking reaction (T3) was, the more easily the popping occurred. The more the numbers of functional groups of resin were, the lower the T3 value was. Furthermore, when the number of functional groups were same, the higher the Tg value of the resin was, the lower the T3 value was.

収録刊行物

• 鉄と鋼

  鉄と鋼 99 (4), 283-287, 2013

  一般社団法人 日本鉄鋼協会

キーワード

• pre-coated steel sheet
• polyester/ iso-cyanate resin
• the popping
• the starting temperature of three-dimensional crosslinking reaction
• Torsional Braid Analysis

詳細情報

• CRID: 1390001205126807424
• NII論文ID: 130003372528
• DOI: 10.2355/tetsutohagane.99.283
• ISSN: 18832954
• ISSN: 00211575
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane/99/4/99_99_TETSU-2012-098/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可