如何计算Colloid
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Colloid properties: suspensions of 1 nm-1 μm particles; colloidal stability depends on pH, ionic strength, surface charge.
分步指南
- 1Input particle size, charge, solution composition
- 2Calculate DLVO potential or colloidal stability
- 3Predict aggregation/sedimentation
例题解析
输入
Oil-in-water emulsion: stability improved by surfactants reducing interfacial tension
结果
Surfactant concentration critical
常见错误注意事项
- ✕Neglecting DLVO interactions
- ✕Not accounting for pH effects on charge
常见问题
Why are colloids kinetically stable?
Brownian motion prevents settling; particles too small for gravity, too fast for diffusion aggregation.
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