According to the power relation between the bulk modulus of a gel and the density, we have studied the gel 'shrinkage rule during drying with the surface-chemical theory. 根据前人提出的凝胶网络的弹性模量与密度之间成幂律关系,应用表面化学理论研究了凝胶干燥过程中的收缩规律。
The shrinkage rule of injection-molding products 注塑成型制品的收缩规则