Preparation and application of novel flower-like composite flame retardant based on Co/Cu-MOF

• Main Authors: MA MINGLIANG, DING LAILONG, DONG PEISONG, WANG YIFAN, HOU YONGBO, LIN JIAYU
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides preparation and application of a novel flower-like composite flame retardant based on Co/Cu-MOF for a polyurea material. According to the novel flower-like composite flame retardant based on Co/Cu-MOF, firstly, Co/Cu-MOF of a cubic structure is prepared, then Co metal ions and 2-methylimidazole ligands are linked and self-assembled through coordination bonds to obtain Co/Cu-MOF-ZIF of a flower-like structure, finally, Ni ions and Fe ions are introduced, a layered structure is further formed, and the final product Co/Cu-MOF-ZIF-LDH flame retardant is obtained. The invention also provides a polyurea material with excellent flame retardant property, and the addition amount of the novel flower-like composite flame retardant in the polyurea material is 0.5-6.0 wt%. By adding the novel flower-like composite flame retardant, the flame retardant property of the polyurea material is improved on the premise that the mechanical property of the polyurea material is hardly influenced, and the novel