面状导电纸的研制  

Development and properties of surface conductive paper

作　　者：李红斌 房桂干[2] 韩善明[2] 焦健[2] LI Hongbin;FANG Guigan;HAN Shanming;JIAO Jian(Research Institute of Forestry New Technology, CAF, Beijing 100091, China;Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042,China)

机构地区：[1]中国林业科学研究院林业新技术研究所,北京100091 [2]中国林业科学研究院林产化学工业研究所,南京210042

出　　处：《功能材料》2020年第1期1165-1170,共6页Journal of Functional Materials

基　　金：中国林科院林业新技术所基本科研业务费专项资助项目(CAFYBB2017SY032)

摘　　要：针对面状导电纸通电加热后普遍存在的发热不均匀,易产生局部过热导致发热纸疲劳损耗的现象,开展了高均匀性碳纤维纸张制备的研究,通过调整植物纤维长度、碳纤维长度、加入分散剂等方式改善纸张匀度,使其发热均匀。研究结果表明,为了获得匀度相对较好的碳纤维纸,植物纤维纸浆适宜的打浆度选择45~50°SR区间;在碳纤维含量在5%时,碳纤维纸张的耐破指数不低于5 kPa·m^2/g,撕裂指数均大于8.0 mN·m^2/g,抗张指数均大于60.00 N·m/g;加入4 mm碳纤维的条件下,匀度指数较大,即纸张匀度较好;当碳纤维加入量在5%时,并且相同电压的条件下,当碳纤维含量由5%增加到10%时,电阻值骤降,继续增加碳纤维含量,纸页的电阻值降低的趋势减缓;研究成果可为碳纤维纸张寿命的评估及在实际应用提供有效的理论支撑。The preparation and formation characterization of carbon fiber paper were carried on in this paper.The results showed that the appropriate beating degree of plant fiber was abtained at 45-50°SR for a relatively good formation of carbon fiber paper.In the condition of carbon fiber content 5%,the burst index of carbon fiber paper could be reach to 5 kPa·m^2/g or up,tear index could be reach to 8.0 mN·m^2/g,and breaking length was about 6 km.The better formation could be gained in the condition of 4 mm length of carbon fiber.Under the same applied voltage condition,when the carbon fiber content increased from 5%to 10%,the resistance value dropped sharply.When the carbon fiber content was continued increasing,decreasing trend of the resistance value slowed down.The different electrical requirements of carbon fiber paper could be achieved by adjusting the content of carbon fiber.

关 键 词：面状导电纸 碳纤维纸 纸页匀度 电学特性 

分 类 号：TB332[一般工业技术—材料科学与工程]