Surface Modification by Carbon for Enhanced Performance

利用炭材料的优良特性，提出了A）炭材料的表面改性和B）金属和陶瓷的炭涂层，以提高各自的功能。结果总结如下：A-1）通过氧化源自酚醛树脂的碳材料，制备了具有高的三卤甲烷吸附效率和分子筛性能的活性炭。利用扫描隧道显微镜（STM）和扫描电镜（SEM）研究了孔隙的精细结构。A-2）采用弱氧等离子体对鳞片石墨进行表面改性。B-1）通过惰性气氛下加热陶瓷粉末和有机聚合物的混合粉末，在陶瓷粉末表面形成一层均匀的碳膜; B-2）在B-1）的基础上，在铝合金表面形成一层碳膜B-3）在惰性气氛下加热过渡金属氧化物和有机聚合物的混合粉末，在1150- 1200 ℃下形成碳或石墨包覆的金属颗粒。该工艺有望在低温下生产石墨。

By using promising characteristics of carbon materials, A) surface modification of carbon materials and B) carbon coating of metals and ceramics were caiited out to enhance the functions of respective materials. Results are summarized as below.A-1) By oxidation of the carbon materials derived from phenol resin, activated carbons having high efficiencies for adsorption of trihalomethane and molecular sieving properties were produced. Fine structure of pores was investigated by STM and SEM.A-2) Surface modification of graphite flakes were carried out using weak oxygen plasma. A method to create defect clusters confined to 1-2 surface layers was establishedB-1) A new process to coat ceramics powder with thin uniform carbon layer was developed by heating the mixed powder of ceramics and organic polymers under inert atmospheres.B-2) A process to coat aluminum components with carbonaceous-films was developed using the method derived from B-1) in which formation of porous oxide films on aluminum was an important step for uniform and adhesive coating.B-3) By heating the mixed powder of transition metal oxides and organic polymers under inert atmospheres, carbon or graphite coated metal particles were formed at 1150-12OO℃. The process is promising for the production of graphite at low temperatures.