Authors

Abstract

The current study concerns an investigation of diffusion mechanism of
different kinds of water into thermoplastic material (type unplasticised PVC,
(UPVC)) that is often used as pipes for healthy draining purposes and other
services.
After preparation of samples from this material, they were immersed in glass
containers which contain (sea water, river water, rain water, distilled water, and
tap water), the weights of these samples are measured at periodic time of soaking.
The aim of this work is introducing an idea about the diffusion behavior and the
penetration of water through the material under study, then, the values of diffusion
coefficient (Dx) are evaluated for each type of water mentioned above.
After comparing the obtained results from these tests, it is found that the distilled
water has the higher value of (DX) into the (UPVC) material, it is followed by the
sea water and then the rainwater, while each of the river and tap water record the
lowest values.

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