Fiber reinforced polymers, for example sheet molding compounds (SMC), have gained significant importance as lightweight materials. In this work, a SMC composite based on unsaturated polyester-polyurethane hybrid resin (UPPH) with discontinuous long glass fibers is considered. The mechanical behavior of highly governed by its microstructure. Based samples extracted from compression molded sheets...

Abstract The aim of this study is to investigate the effect alkaline treatment and addition microcrystalline cellulose (MCC) on density, tensile strength, elastic modulus, impact Poisson’s ratio unsaturated polyester resin composites reinforced by cantala fibers (UPR-CFs). were immersed in solution 6% NaOH for 0, 3, 6, 9, 12 h. composite had (CFs) MCC volume fraction ( v f ) 30 5%, respectively...

For the last few decades, both economic and ecological interests have resulted in more intensive use of natural materials for creation new composites, issues such as recyclability environmental safety can become increasingly important introduction products. This work is focusing on development a green composite unsaturated polyester resin (UP) reinforced by cost-effective eco-friendly Nano powd...

abstract: introduction & objective: teaching human anatomy, at any level, relies not only on the expertise of a tutor but also on the availability and use of good teaching aids. plastination specimens have a unique position as a teaching aid to exhibit accurate anatomical structures and are easy to be stored and handled by students. the aim of this study was to assess the comparative use of pol...

The present study introduces two quantitative parameters to compare the accuracy of ultrasonic C-scan testing and X-ray radiography methods in the damaged area detection under low-velocity impact in polymer-based composites. For this purpose, the hand lay-up technique of composite processing was employed to prepare the composite specimen. A composite specimen consisting of the glass fiber reinf...