ABSTRACT
The (PEG/CMC) blends were prepared by liquids mixing method, the appropriate
concentrations of PEG were (0.1-0.2 to 0.8 g/mL)% are dissolved in (500 mL) of distilled water under
stirring without heat for (20 min.) then added the CMC with two weights (0.25 and 0.5) g for each
PEG concentrates at (288 K). In order to evaluate the mechanical properties of (PEG/CMC) blends the
ultrasonic measurements were performed at these samples, these properties are ultrasonic velocity,
compressibility, acoustic impedance and bulk modulus, were made at fixed frequency (f = 25 kHz),
another acoustic mechanical properties were measured and calculated at a same time such as the
ultrasonic wave amplitude absorption by using oscilloscope, then calculated the absorption coefficient
and the transmittance ratio of the sound. It was found that there is significant relationship between
ultrasonic velocity and material properties results show that adding PEG effects on the density then on
the absorption of the ultrasonic waves inside the blend samples. Finally applied this blend in various
concentrations as additive to imported wood glue and found that increasing the adhesion force after
adding comparing with pure. FT-IR test has been made.
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