قامت الباحثة م.م رند فاضل التدريسية في قسم الهندسة الكيمياوية و الصناعات النفطية بجامعة المستقبل بنشر بحث علمي بعنوان " COMPARATIVE STUDY ON THE IMPACT TRANSITION "BEHAVIOUR OF PPS REINFORCED WITH 40%VF GLASS <br />في مجلة "DIAGNOSTYKA" وكان الغرض الرئيسي من البحث هو<br /> Composite materials, in most cases polymers reinforced with fibers, are these days utilized in numerous <br />applications such as aerospace applications in which lightweight, high strength, high specific modulus and low <br />temperature resistance are critical issues. As these materials have possible applications in different designing <br />areas, a lot of work has been put into enhancing their performance. This study's aim was to study the impact <br />transition behavior of PPS and its composite under different ranges of temperatures by investigating their <br />thermal, mechanical and structural characteristics. PPS and its composite reinforced with 40% vf (volume <br />fraction) glass fibers are employed in this study. The impact transition behavior of PPS and 40%Vf glass fibers <br />composite were investigated by analyzing the mechanical properties: impact, tensile, bending and, hardness at <br />the following temperature ranges: 23°C, -26°C, and -78°C. A particular refrigerator and dry ice were used to <br />achieve the extremely low temperatures (-26 C and -78 C, respectively). The results showed that the addition <br />of 40% glass fibers improved the impact transition behavior of 40%GF PPS composite with temperature <br />decreasing. Which with decreasing in temperature from 23˚C to -78˚C, the impact strength of PPS decreased <br />by fifty five percent while it increased by twenty three percent for 40%GF PPS composite.