Chitin Nanofibril-Based Flame Retardant for Paper Application
Tongling Zhang, Shigenori Kuga, Min Wu, Yong Huang
Abstract
Chitin nanofibril-based flame retardant was developed by disintegrating chitin by ball-mill, followed by phosphorylation with P2O5. The combustion performance of the paper loaded with the product was evaluated by a microcombustion calorimeter, limiting oxygen index (LOI), and flammability test; paper loaded with 30% retardant gave LOI of 30%, peak heat release rate 62% lower than the control paper, and self-extinguishing behavior with no afterglow. The dry and wet tensile strength were also enhanced by retardant loading.
Topics & Concepts
Fire retardantLimiting oxygen indexFlammabilityChitinMaterials scienceUltimate tensile strengthCone calorimeterComposite materialLimitingCombustionChemical engineeringPulp and paper industryChemistryChitosanOrganic chemistryCharMechanical engineeringEngineeringFlame retardant materials and propertiesFire dynamics and safety researchLignin and Wood Chemistry