Liquid absorption material structural factors

There are, however, many different types of electrochemical oxidations of phenol derivatives possible, the results of which largely depend on the methods used as well as the structure of the different phenols. Secondary chemical reactions of factors including the primary or secondary oxidation products can also occur. The various electrochemical methods used are dependent on solvents, pH values, electrode materials or absorption effects at the electrodes. These all influence the measured potentials. Moreover, the liquid/liquid potentials and the various indicator electrodes can give results, which cannot be safely compared with the general E scala of redox potentials in aqueous solutions. In this review we cannot go into the many details obtained by these methods. For some examples see Ref. 203 . 

Diffusion and swelling studies of biofiber-reinforced rubber composites are very important as they provide information about its interface and the service performance in liquid environment. On absorption of liquid, the composite undergoes a diffusion process, which involves transfer of Hquid to its interior. Hence, the material swells as a whole, which leads to gradual deterioration in its physical and mechanical properties and subsequent premature failure. Several factors such as chemical structure and composition of the rubber compound, solvent, test piece size and shape, rubber-liquid ratio, temperature, time, presence of fillers affect the swelling behavior of elastomers. 

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