EVALUATION OF PHOTODEGRADATION BEHAVIOR OF POLYPROPYLENE/GRAPHITE PARTICULATE COMPOSITE FOR ROOFING APPLICATION. FJS [Internet]. 2025 Mar. 31 [cited 2025 Sep. 11];9(3):233-9. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/3156