Experimental Study on Combustion Performance of Flame-retardant Modified Polyethylene Composite Rolls
To comprehensively evaluate the combustion performance of flame-retardant modified polyethylene composite rolls,five sets of composite rolls were tested using flammability tests and the radiant heat source method.The results showed that the combustion performance of composite roll D did not meet the technical requirements of Class B1 in GB 8624-2012,while the remaining four sets of composite rolls met the technical requirements of Class B1(B)in GB 8624-2012.Among them,the honeycomb-type composite rolls exhibited better combustion performance compared to the sand-faced composite rolls.During the flammability test,the phenomenon of whether the combustion droplets ignite filter paper within 20 seconds can be considered as a measurement indicator.In the critical radiant flux test,direct ignition of the sample without preheating can be considered for testing.
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