DUAN, Hanyi. Preparation of Polyurethane and Its Influence on the Properties of Epoxy System. International Journal of Advance in Applied Science Research, [S. l.], v. 5, n. 8, p. 11–20, 2026. Disponível em: https://h-tsp.com/index.php/ijaasr/article/view/339. Acesso em: 19 sep. 2026.