Comparison table of core material composition and combustion heat value of various flame retardant grades Core material composition ratio | ||||||||
Component proportion of core material | ||||||||
Mg(OH),based inorganic mineral FR | PE | |||||||
≥92% | <8%(无机胶粘剂) Inorganic adhesive | ≤3MJ/KG | 1.9g/cm³ | |||||
HFR Core | ≥72% | ≤28% | ≤12MJ/KG | 1.7g/cm³ | ||||
FR (A2*) Core | >65% | ≤35% | ≤15MJ/KG | 1.6g/cm³ | ||||
B1Core | >50% | <50% | 22MJ/kg About | 1.4g/cm³ | ||||
PE | 0 | 100% | 46MJ/kg About | 0.97-1.2g/cm³ |