PANG, X.-Y., D. MING-WEI, Z. ZHI-XIAO, and T. YU. “An Intumescent Flame Retardant - Expandable Graphite: Preparation, Characteristics and Flame Retardance for Polyethylene”. Kuwait Journal of Science, vol. 42, no. 1, Feb. 2015, https://journals.ku.edu.kw/kjs/index.php/KJS/article/view/72.