摘要
分析了满足Ｒａｙｌｅｉｇｈ－Ｇａｎｓ－Ｄｅｂｙｅ（ＲＧＤ）近似条件的稀多分散壳层球粒悬胶液，导出了一个新的作为溶剂折射率ｎ＿ｏ函数的“测量”静态结构函数Ｓ￣Ｍ（Ｋ），并用以计算稀悬胶液的多分散性分布。同时导出了联系粒子互扩散和自扩散系数的“测量”平均扩散系数。
We consider dilute suspension of core-shell polydisperse spherical particles forwhich the Rayleigh-Gans-Debye(RGD)approximation is valid.A new 'measured'staticstructure factor S￣M(K)is derived,and applied to the calculation for the polydispersity distribution of the liquid suspension, as a function of solvent refractive index n_o,where K isthe magnitude of the scattering wave vector.A'measured'average diffusion coefficient,relates to the mutual-diffusion coefficient and self-diffusion coefficient of the particles is also obtained.
关键词
动态光散射
多分散性
微乳液
扩散系数
Dynamic light scattering
Polydispersity
Microemulsion
Diffusion coefficient
