Cross-linking of excellent flame retardancy pulp-ammonium polyphosphate foam with biodegradable, recyclable properties. - Li, Long; Hou, Yansu; Zhu, Yikui; Liao, Jianming; Huang, Luyao; Lu, Pengbo; Mo, Lihuan; Liu, Zhan; Liu, Daoheng; Li, Jun (Cellulose, 2025)