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›› 2003, Vol. 3 ›› Issue (3): 0-0.

• 3 •    

六方BN微颗粒表面化学镀镍的动力学

李钒，赵晓峰，张登君，李报厚，罗世民   

  1. 中国科学院过程工程研究所，北京 100080
  • 出版日期:2003-06-20 发布日期:2003-06-20

Kinetics of Chemically Plating Nickel on the Surface of Hexagonal Boron Nitride Micro-particles

LI Fan, ZHAO Xiao-feng, ZHANG Deng-jun, LI Bao-hou, LUO Shi-min   

  1. 1. Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080, China; 2. State Key Lab. Biochem. Eng., Inst. Chem. Metall., Chinese Academy of Sciences, Beijing 100080, China
  • Online:2003-06-20 Published:2003-06-20

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摘要： 研究了平均粒径为104 mm的BN颗粒表面以肼为还原剂的微镀镍过程中镍沉积量随时间的变化规律；分析了温度、添加剂等对沉积镍动力学规律的影响；不同沉积时刻取样观测表面沉积金属镍颗粒的SEM形貌，并进一步分析验证了动力学规律.

关键词: 动力学, 化学镀镍, 氮化硼, 微颗粒, 表面形貌

Abstract: The effect of inorganic salt added into aqueous fucoidan solution on fucoidan extraction was investigated. It is found that extraction of fucoidan decreases rapidly with the increase of inorganic salt concentration in the aqueous solution. Based on this phenomenon, the stripping of fucoidan was carried out with aqueous salt solution. The experimental results show that the stripping of fucoidan increases with the concentration of inorganic salt in the aqueous solution and decreases with the increase of fucoidan concentration in the organic phase. In addition, the stripping efficiency of NaCl solution is higher than that of CaCl2 solution at the same chloride ion concentration. The effect of organic solvent as diluent on the stripping of fucoidan was also studied. It is shown that the stripping of fucoidan with carbon tetrachloride as diluent is more difficult than that with the other organic solvents.

Key words: kinetic, chemical plating nickel, boron nitride, micro-particles, surface morphology

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