Title:
MOISTURE PERMEABILITY/GAS PERMEABILITY MEASURING DEVICE, AND GAS PERMEABILITY MEASURING METHOD
Document Type and Number:
Japanese Patent JP3930871
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To measure a moisture permeability and a gas permeability of a protection film or the like with higher accuracy in a shorter time compared with hitherto, and to reduce system cost.
SOLUTION: A test piece S is sandwiched between an atmospheric chamber 11a and a vacuum chamber 12a, and the atmospheric chamber 11a and the vacuum chamber 12a are sealed from the outside air. The atmospheric chamber 11a, the vacuum chamber 12a and the inside of a test gas introduction system 2 are put into the ultrahigh vacuum state by a high vacuum evacuation system 3 and ultrahigh vacuum evacuation systems 4, 5. Steam is generated by the test gas introduction system 2 and a water tank 2, and the steam is introduced from a conduit a into the atmospheric chamber 11a. Evacuation is continued by the ultrahigh vacuum evacuation system 4. A pressure is measured by an ultrahigh vacuum gage. When the pressure inside the vacuum chamber 12a at the steam introduction time reaches a steady state, the pressure difference with a pressure at the steady state time before steam introduction is determined. The pressure difference is converted into the moisture permeability.
Inventors:
Toshiaki Ishibashi
Application Number:
JP2004166914A
Publication Date:
June 13, 2007
Filing Date:
June 04, 2004
Export Citation:
Assignee:
Create Tech Co., Ltd.
International Classes:
G01N7/10; G01N15/08; (IPC1-7): G01N15/08
Domestic Patent References:
| JP10073527A | ||||
| JP46002396A | ||||
| JP54116285A | ||||
| JP63172942A | ||||
| JP6241978A | ||||
| JP2003106971A | ||||
| JP2004157035A | ||||
| JP2004157068A | ||||
| JP2004279254A | ||||
| JP2047548U |
Foreign References:
| US3590634 | ||||
| WO2002039092A1 |
Other References:
仲川勤,XV. 合成高分子膜の気体透過実験法,膜学実験法(中垣正幸編),喜多見書房,1984年 7月 1日,pp.209-227
株式会社クリエテック ,透湿度(WVTR)兼ガス透過度(GTR)測定装置,2003年,URL,http://www.createc.jp/product/product02.html#e
JIS K 7126「プラスチックフィルム及びシートの気体透過度試験方法」,日本規格協会,1987年12月 1日
内倉昌樹、小谷壽、倉田道夫,混合気体・蒸気の透過測定装置の試作,高分子論文集,1982年 3月,Vol.39, No.3,pp.149-156
師岡亨、青柳勝行、中川和雄,1B-11 高分子膜透過気体の成分分離,昭和60年度質量分析連合討論会講演要旨集,1985年 5月,pp.60-61
株式会社クリエテック ,透湿度(WVTR)兼ガス透過度(GTR)測定装置,2003年,URL,http://www.createc.jp/product/product02.html#e
JIS K 7126「プラスチックフィルム及びシートの気体透過度試験方法」,日本規格協会,1987年12月 1日
内倉昌樹、小谷壽、倉田道夫,混合気体・蒸気の透過測定装置の試作,高分子論文集,1982年 3月,Vol.39, No.3,pp.149-156
師岡亨、青柳勝行、中川和雄,1B-11 高分子膜透過気体の成分分離,昭和60年度質量分析連合討論会講演要旨集,1985年 5月,pp.60-61
Attorney, Agent or Firm:
Hideo Takino
Sadao Matsumura
Isamu Kakiuchi
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi
Hiroshi Ochi
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