الفهرس 
CH.1 : Review and Literature SurveyOnly 14 pages are availabe for public view
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Abstract
Composite materials reinforced using natural fibers have great intense in the last few years, due to their advantages to health and it is considered a friendly environment. Nowadays, the date palm trees are attractive, especially in the middle east region, this is due to their widespread which make them cheap and available with a large amount. The date palm trees are used in ancient years in many simple industries such as ropes, scuttle etc. In the present study date, palm trees have been used to reinforce epoxy resin to be used in advanced industrial applications. Firstly, three different types of chemical treatments are carried out on the date palm trees; the fibers are immersion in three different types of a chemical solution (Acetic acid CH3COOH, Hydrochloric acid HCl, and alkaline Sodium hydroxide NaOH) with three different concentrations 10%,20% and 50% at temperature 100Cº for1and2hrs.Then, these fibres are mechanically grinding to small chipped fibres. A part of these fibres are mixed with epoxy resin and another part is added to small chipped recycling rubber and mixed with epoxy resin. The effect of chemical treatment in the date palm trees fibres is analysis using electro-scan microstructure (SEM) examination. Mechanical characteristic such as the tensile test is carried out over the standard tensile test specimens of that composite to study the effectiveness of reinforcement with the epoxy resin the maximum and minimum values of tensile, and the results show that HCl treatment gives good compatibility with date palm trees fibres, and so compression test and Flexural strength through three-point bending test and the results for flexural strength that good results in case boiling 2hr more than case 1hr. .Static fracture characteristic such as Compact tension test and the resistance to fracture and to crack propagation are investigated measuring surface release energy of each composite specimen of date palm trees fibres reinforced epoxy (DPTFRE) with/without rubber . The fracture properties are measured using standard composite compact tension test specimen at room temperature. The maximum and minimum values of crack resistance are measures and the results show that HCl treatment gives good compatibility with date palm trees fibres. Another static fracture characteristic is Single edge notch bending test was done for this composit. And so a dynamic fracture toughness such as charpy impact test done .Then Rockwell hardness test was done for the composite,lastly DROP weight impact test to explain the damage tolerance for(DPTFRE) with/without rubber.The results showed that the impact strength is nearly better.in.case.100C°for.2hr.than.case.1hr.