Study foam combustion performance

The specific expression is that the oxygen index increases with increasing density, that is, the porous material with a large degree of densification is not easy to ignite; the time of combustion is almost independent of the degree of density, explaining the longevity and density of the combustion phenomenon of multi-porous materials. The extent of the relationship is half; the range of combustion phenomena and quality loss all decrease with increasing degree of density, and the speed of combustion decreases more superficially, that is, the spread of flames of multi-porous material with low degree of density is more swift. .
Effect of varying degree of density on the performance of Foam Body Combustion Phenofoam Polyurethane Foam Molecular Compounds Plastic As a low-density porous material, the presence of a number of multi-fiber small cells increases the size of the contact plane or surface of the material with air. Because the porosity of this porous material is lower, the combustion phenomenon is also easier. Because of this, when confirming that the flame-retardant multi-pore material is formulated according to the prescription, it is necessary to fully consider the influence of the degree of densification, and to reduce the degree of damage to the flame-retardant properties must be remedied by adding an additional amount of flame retardant. The final results of the study by Zhu Guoqiang et al. showed that the degree of densification of multi-porous materials has a great influence on the performance of their combustion phenomena.