2002 Fiscal Year Final Research Report Summary
DEVELOPMENT OF ON-LINE NEAR-INFRARED SPECTROSCOPY SENSOR FOR POLYMER PROCESSINGS
| Project/Area Number |
12555214
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
化学工学一般
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
OHSHIMA Masahiro Kyoto University, Chem. Eng., Professor, 工学研究科, 教授 (60185254)
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| Co-Investigator(Kenkyū-buntansha) |
KURODA Ryuma Sumitomo Chemical, Chief Researcher, 樹脂開発センター, グループ長
KURUMADA Kenichi Kyoto University, Chem. Eng., Instructor, 工学研究科, 助手 (80273473)
TANIGAKI Masataka Kyoto University, Chem. Eng., Professor, 国際融合創造センター, 教授 (30027148)
WATARI Masahiro Yokogawa Electric, Chief Researcher, 環境機器事業部, 課長
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| Project Period (FY) |
2000 – 2002
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| Keywords | NIR spectroscopy / On-line sensing / Polymer Processing / Diffusion Coefficients / Foaming Agent / Foaming Extruder / Injection Molders / Surface coaling |
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| Research Abstract |
The near infrared (NIR) spectroscopy sensor was developed for polymer processing uses, especially, polymer foaming with supercritical CO_2. The sensor can monitor foaming agents dissolved in the molten polymers such as CO_2 and butane concentrations as well as alcohol. It can also measure the diffusion process of low molecular components and CO_2 in molten polymer.
By installing the developed NIR sensor at the foaming extruder, where physical foaming agents are introduced to make polymeric foams, concentration of foaming agents dissolved into the molten polymer could be measured on-line from the NIR spectra. The sensor is also extended to use for the foaming injection molders, where the CO_2 could be introduced to both cylinder and cavity in the molder. The new surface coating techniques was newly invented using the injection molder.
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