Abstract
Polyacrylamide acrylonitrile magnesium silicate {P(Am-AN)-MgSi} & polyacrylamide acrylic acid magnesium silicate {P(Am-AA)-MgSi} hybrid composites were fabricated utilizing gamma-radiation polymerization initiated about 30 kGy. Different types of dosimetric radiation-induced polymeric composites were irradiated by cesium-137 gamma-ray dose to show its possibility for use as a thermoluminescence dosimeter. The prepared polymeric composites showed useful properties such as good dosimetric and thermal stability behaviors. The mechanical behavior of the samples was measured non-destructively by the ultrasonic pulse-echo technique. It was found that the addition of P(Am-AA) with higher elastic moduli to MgSi with lower ones are produced in the {P(Am-AA)-MgSi} composite sample with a midway value for Young's modulus of 7.13 GPa and shear modulus of 2.71 GPa. Dissimilar in the {P(Am-AN)-MgSi} composite sample, it shows a significantly improved behavior as Young's modulus recorded 9.32 GPa and shear modulus 3.61 GPa. Similarly, the microhardness recorded 0.328 GPa and 0.518 GPa a the composites {P(Am-AN)-MgSi} & {P(Am-AA)-MgSi}. As a thermoluminescence dosimeter, various characteristics were studied for these types of polymers. Specific ultrasonic properties were also tested for TL dosimetric properties in different polymers. An insertion of MgSi into P(Am-AN) & P(Am-AA) has indeed been found to increase TL response and lead to good properties being acquired.