HONG, Phan Ngoc et al. Effects of graphene content on formation and characteristics of char layer in intumescent coating. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 62, n. 5, p. 906–914, 2024. DOI: 10.15625/2525-2518/17610. Disponível em: https://vjs.ac.vn/jst/article/view/17610. Acesso em: 10 jan. 2026.