Abstract
In the present study, pure (PVA) polymer film and films reinforced with CdCl2.H2O salt with various values of the weight ratio ((3,7,11, and 15) wt%) were prepared with use of the solution casting method. The effects of the salt weight ratio upon apparent porosity of composite films (PVA-CdCl2.H2O) was investigated, and the practical results revealed that the apparent porosity decreases when CdCl2.H2O salt’s weight ratio increases. The effects of weight ratio of salt on true density of films of the composite (PVA-CdCl2.H2O) was studied, and it was found that the true density increases with the increase in weight ratio of added CdCl2.H2O salt. The effect of weight ratio of salt on the water absorbance of the composite films (PVA-CdCl2.H2O) was also the result, and the experimental results showed that the water absorbance decreases with increasing weight ratio of the added CdCl2.H2O salt. The aim of the study is to the possibility of improving some of the physical properties of the polymer polyvinyl alcohol (PVA) by adding cadmium chloride salt in different weight ratios ((3,7,11, and 15) wt%) by preparing films by the method of pouring the solution.
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