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Fundamentals of Powder Compression. II. The Compression of Binary Powder Mixtures.
1School of Pharmacy, University of Basle, CH-4051, Basle, Switzerland.
Pharmaceutical Research
|November 26, 2013
Summary
Understanding powder mixture compression is key for tablet formulation. This study emphasizes physical interactions
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Chemical Engineering
Background:
- Tablet formulations are complex multicomponent systems.
- Few studies investigate the compression of binary or ternary powder mixtures.
- Physical interactions between components can affect critical biopharmaceutical properties like disintegration and dissolution.
Purpose of the Study:
- To emphasize the importance of physical interactions in powder mixture compression.
- To investigate the strength of the compact formed from powder mixtures.
- To deduce additivity rules for compressibility and compactibility parameters.
Main Methods:
- Review of existing literature on powder mixture compression.
- Analysis of physical interactions between components.
- Investigation of compact strength.
- Development of additivity rules for material parameters.
Main Results:
- Physical interactions significantly influence tablet properties.
- Additivity rules for compressibility and compactibility can be deduced.
- These rules may enable prediction of tablet properties during formulation testing.
- Compression issues like sticking and capping were also addressed.
Conclusions:
- Physical interactions are crucial in multicomponent tablet systems.
- Additivity rules offer a predictive approach for tablet formulation.
- Further research into compression phenomena is warranted.
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