Sensing Characteristics of Polyaniline Sensor Coated with Porous Poly(vinylidenfluoride) Layer to Me

• 作 者: Cheol-Beom Lim Joon-Boo Yu Do-Yeon Kim Sung-Ok Sohn Duk-Dong Lee Jeung-Soo Huh
• 机 构: Department of Sensor and Display Engineering Kyungpook National University,Sangyuk-Dong 1370,Bukgu,D
• 出 处: 稀有金属材料与工程
• 发表日期: 2006年S3期
• 关键词: coated methanol humidity fabricate gases initiator monomer porous laver getting

Hydrophobic polymer [ex.Poly(vinylidenfluoride)] layer was coated on polyaniline (PANi) sensor to reduce the problems of humidity.The differences in sensitivity to methanol gas detection in various humidity condition between pure-PANi sensor and coated with poly(vinylidenfluoride) polymer (PVDF) (coated-PANi sensor) were investigated.Also the relation between the density of pore,which was coated on the layer of the PANi sensor,and sensitivity was investigated.To fabricate the porous PVDF layer on PANi sensor,poly(vinylalcohol) (PVA),which is water-soluble polymer,was used. Coated-PANi sensor was less affected by humidity compared with pure-PANi sensor.And higher density of pore on PVDF layer led to higher sensitivity.

Hydrophobic polymer [ex. Poly (vinylidenfluoride)] layer was coated on polyaniline (PANi) sensor to reduce the problems of humidity. Differences in sensitivity to methanol gas detection in various humidity condition between pure-PANi sensor and coated with poly (vinylidenfluoride) polymer (PVDF) (coated-PANi sensor) were investigated. Also the relation between the density of pores, which was coated on the layer of the PANi sensor, and sensitivity was investigated. To fabric the the PVDF layer on PANi sensor, poly vinylalcohol (PVA), which is water-soluble polymer, was used. Coated-PANi sensor was less affected by humidity compared with pure-PANi sensor. And higher density of pore on PVDF layer led to higher sensitivity.