Flame retardancy and low smoke

2021/05/21

No need to add other flame retardant components, that is, flame retardant properties, the sample of 1.5mm thickness can reach the UL-94V0 standard, and the amount of smoke is significantly lower than that of other varieties of resin.


1. Flame retardancy: The flammability of materials is the ability to maintain combustion after high energy ignition from oxygen and nitrogen mixtures. The accepted standard for measuring flammability is UL94 by first igniting a vertical sample of a predetermined shape and then measuring the time it takes for the material to automatically extinguish. The PEEK(PAEK) test results are V-0, which is a good grade of flame retardancy.


2. Smoky: The standard for measuring the smoke generated by plastic burning is ASTM E662. This standard is measured by the National Institute of Standards (NBS) soot laboratory, which is produced by burning the standard shape sample. The degree of visible light dimming of the soot can be carried out in the case of continuous combustion (with flame) or interruption of combustion (no flame), in which PEEK(PAEK) has a lower smouldering property. :


3, toxic fumes: PEEK(PAEK) is the same as many organic materials, PEEK(PAEK)mainly produces carbon dioxide and carbon monoxide during pyrolysis, using the British aircraft test standard BSS 7239 can detect very low concentrations of toxic gas escape, this detection process needs Completely burn 100 grams of sample in a cubic meter of space, and then analyze the toxic gas produced therein. The toxicity index is defined as the ratio of the concentration of toxic gas produced under normal conditions to the dose that can be fatal in 30 minutes. The index of PEEK(PAEK) is 0.22, and no acid gas was detected.