摘要
根据硅胶体系的具体化学特性,推导了硅胶粒子分形聚集的碰撞核。通过与实验的比较,确定粒子Smoluchowski方程中的参数,并从化学反应特性的角度对参数的意义进行了探讨,确定的分形维也与计算机的模拟结果相吻合。
The laser scattering technology was used to monitor the aggregation process of silica particles under various conditions and the Smoluchowski equation was used to describe the process theoretically, in which the coagulation kernel was determined by using molecular reaction kinetic method in terms of fractal. The parameters of equation were obtained from the comparison between numerical solution and experimental values and the effects of pH value and temperature were analyzed. The fractal dimension thus determined agreed with computer simulation.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1999年第3期337-342,共6页
CIESC Journal
关键词
聚集动力学
分形
硅胶粒子
aggregation kinetics, fractal, silica particle
