Study of the effect of adding (TiO2) on some mechanical and thermal properties of polyvinyl chloride (PVC) pipes exposed to sunlight: no. Damascus University Journal for engineering sciences, [S. l.], v. 41, n. 1, 2025. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/engj/article/view/7079. Acesso em: 18 jun. 2026.