Absorption of liquids and swelling

Information on absorption of liquids and gases by filled materials remains limited even though it is very important to two areas of applications filled reactive systems and solvent resistant materials. 

A mathematical model was proposed for evaluating the diffusion of a material which can react with the filler (e.g., acid). The proposed method permits the study of process kinetics for different concentrations of penetrant and filler.  

Similarly, swelling of polyethylene filled with 35 and 50 wt% calcite was reduced. T able 5.13 gives equilibrium swelling of polyethylene in different solvents. 

Solvent HDPE HDPE+35 wt% calcite HDPE+50 wt% calcite 

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