تاثير قشور حبوب زهره الشمس على خصائص مقاومة اللهوبية لبوليمر الاثيلين واطئ الكثافة

الملخص EN

In this present paper, experimental results on fire retardant efficacy of lowdensity polyethylene added with various contents ratio of sun flower plant as a filler agent were reported .The ratio of doping was 5,10,20,30,40 and 50 Of weight where the size of sun flower particles used in this research was (<425) micrometer .Several parameters were studied like average of burning time , burning rate and percentage of burning rate .The obtained results showed that sun flower as a suitable additive to low density polyethylene and the increase of doping ratio leads to decrease in average of burning time at doping ratio (10%-50 %) where this behavior is opposite to the 5% ratio hence there is an increase in time of burning .

A similar results were obtained when calculating burning rate .Also the percentage of burning time has two values positive for doping ratio equal or much than 10% while negative value was found at doing ratio 5% relatively to it’s pure value where negative sign explaining the mode of burning resistance of low density polyethylene.