Effect of adding Potassium Alum powder on the Mechanical Properties and Flame-resistant of Low Density of Polyethylene (LDPE)

J. Mohammed, Ahmed; K. Ibrahim, Ibrahim; J. Mohammed, Fayez

	Effect of adding Potassium Alum powder on the Mechanical Properties and Flame-resistant of Low Density of Polyethylene (LDPE)
JOURNAL OF THI-QAR SCIENCE
Article 1, Volume 5, Issue 1, 2016, Pages 46-51
Authors
Ahmed J. Mohammed; Ibrahim K. Ibrahim; Fayez J. Mohammed
Abstract
The Study of the Effect of Potassium Alum on the Mechanical properties of low density polyethylene (LDPE), which is manufactured in the General state company of petrochemical industries, Basra, as function of the percentages of Potassium Alum (2.5%, 5%, 10%, 15%, 20%), at particular size (150 µm) were investigated through several variables, such as, Young's modules, strength, and elongation. The obtained results were appeared that the added Alum to reduce the spaces between the polymer chains, which reflects the high ability of the polymer against the applied stress, and this increase will give further property that increase the hardness of the prepared specimens, the results lead to that the strength at both break will be affected little till the percentage (5%), and lowered after that with increasing the percentage also indicate an lowered in young's modules at the percentage (10%). The results also appear that the highest point of the stress is (10.95 N/mm2 ).The proportional limit was (163.6 N) for (10%), observe that the average time of burning starts strong impact when (5%) as increasing to(162 Sec) and then begins to decline behavior when increasing proportions weighted exception to this behavior when (20%).

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