CONDUCTIVE PAPER MANUFACTURED WITH THE COMPOSITE OF POLYANILINE/PULP FIBERS BY IN-SITU POLYMERIZATION
Aniline was polymerized onto the surface of the pulp fibers to manufacture conductive paper by in-situ polymerization process. The effects of different polymerization and doping conditions on the surface resistance of conductive paper were studied. The optimum polymerization conditions are: 105 minutes, 5℃, dopant concentration 0.6 mol·L-1.The mass ratio of oxidant to aniline depends on the kinds of oxidant. AmmoniuM persulfate was a better oxidant than potassium persulfate is. Organic acids are better dopant than inorganic acids. The surface resistance of conductive paper further decreased by mixed acid doping and secondary doping. The surface resistance of conductive paper is inverse proportion to the adsorption polymerization ratio of aniline basically, but the surface resistance of conductive paper has increasing tendency. During in-situ polymerization and doping treatment, pulp fiber itself did not undergo obvious degradation. However, the pulp fibers became stiff and the hydroxyl groups on the fiber surface were covered due to the covering or filling of polyaniline onto the surface of fibers. This led to the decreasing of the tensile strength of conductive paper. Under the same preparation condition, the surface resistivities of conductive paper prepared from different fibers are: chemical pulps<high yield pulps; bleached chemical pulps<unbleached chemical pulps; sulphite pulps ≈ kraft pulps; sulfonated high yield pulps<unsulfonated high yield pulps. The conductive paper has reached the electrostatic dissipation material grade and approached the electrostatic conductor grade. The conductive paper possesses relatively good electrical stability.
conductive paper polyaniline composite
Qian Xueren Song Hao Wang Lijuan
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, China
国际会议
广州
英文
434-439
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）