Cover Page August-2019-Advanced Materials Letters

Advanced Materials Letters

Volume 10, Issue 8, Pages 574-585, August 2019
About Cover

3D printing as the state-of-the-art emerging technology offers a platform for the new industrial horizons. The manufacturing process for creating 3D physical objects done via successive layer-by-layer deposition of materials such as metal, plastic, ceramics, or even living cells. The 3D printing concept was first proposed in the 1980s using stereolithography to make polymer objects. 3D technology could transform manufacturing, global product consumption and supply chains. The cover photo of July 2019 issue describes the structure of a 3D printed objects and to celebrate the 39th anniversary of its innovation.


Enhancement the properties of high and low-density polyethylene membranes by radiation grafting process

Hussein Oraby1, Mohamed A. Elsayed1, *, Mohamed Gobara1, Magdy Senna2

1Department of Chemical Engineering, Military Technical College, Cairo, Egypt

2Radiation Chemistry Department, National Center for Radiation Research and Technology, P.O. Box 29, Nasr City, Cairo, Egypt

Adv. Mater. Lett., 2019, 10 (8), pp 574-585

DOI: 10.5185/amlett.2019.2287

Publication Date (Web): Feb 27, 2019

E-mail: m.aboelfotoh@mtc.edu.eg

Abstract

In this work, trials have been made to prepare different graft copolymers by direct irradiation grafting technique and evaluating their reverse osmosis properties. The acrylic acid monomer was grafted onto two improper polymers (low and high-density polyethylene) by means of gamma-ray as a motivator. The optimum conditions of preparation were using acetone as a solvent, monomer concentration 30% (wt/wt), using anhydrous ferric chloride as an inhibitor with optimum concentration 0.1% (wt/wt) and irradiation dose 20 KGy. Mechanical, rheological and thermal properties of the prepared membrane were also investigated. The prepared grafted membranes showed significant results in RO desalination method using underground saline water from Abo Swear, Ismailia, Egypt.  © VBRI Press. 

Keywords

Gamma irradiation, grafting polymerizations, polyolefin, mechanical, rheological and thermal properties.

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