دراسة بعض الخواص الميكانيكية و الانسيابية للبولي اثيلين كلايكول في ظروف مختلفة

الملخص EN

In this study the effect of UV radiation and heat treatment on some flow and mechanical properties of PEG 4000 are studied, the flow properties contains properties ( specific, reduced, relative , and intrinsic) viscosity, and flow time, as well as, the mechanical properties contain solubility and shore hardness .

The flow properties are studied by changing the concentrations of solutions at rang (0.01 – 0.03 ) gm/ml , to heating and non- heating polymer , in addition that, solubility of polymer are studied at the same of the next treatments.

As well as the effect of reinforcement by random glass fibers at range (0.01 – 0.04)w% on shore hardness are studied .

These results refer to increasing of all types of viscosity and flow time by increasing the concentration.

Except the intrinsic viscosity which decreasing by increasing of concentrations , but there all properties decreasing after the first time of UV rad.

and heat treatment while there increase by increasing the time of UV rad.

to 48 hr As well as, the reinforced by glass fibers lead to decreasing of shore hardness by increasing of the weight ratio at rang (0.01 – 0.04) w% but it increase after the UV rad.

and heating by increasing the weight ratio at the same previous rang.

While the results of solubility refer to increasing of solubility time by increasing the weight.