Study the physical properties of polymer blends reinforced by metal laminates and micro cotton

مقدم أطروحة جامعية

Kaftan, Ala Muhammad Hamzah

مشرف أطروحة جامعية

al-Dabbagh, Balqis Muhammad Diya

الجامعة

الجامعة التكنولوجية

الكلية

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القسم الأكاديمي

قسم العلوم التطبيقية

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2012

الملخص الإنجليزي

This research includes the preparation of polymers mixtures consists of resins (Unsaturated Polyester with Polyurethane) (UP+PU),where the optimal mixing ratio has been selected on the basis of the best impact strength, and the mixture have appropriate essential mixability and good morphologic properties.

It is found that the mixing ratio with percentage (60% Polyester+40% Polyurethane) because it has the highest impact strength, where it has been used to prepare the samples.

A four samples where prepared from the polymers mixtures using the above mentioned mixing ratio by using the method of hand casting technique; these samples are: polymers mixture consisting of (UP+PU), added to it the micro cotton powder (MC) with weight ratio (2wt%) once and for copper by weight ratio (39wt%) again, with volume fracture (5%), as well as composite material was prepared from the same polymers mixture adding to it micro cotton powder filling and chips together in the same weight ratios mentioned earlier.

Some mechanical tests were conducted include: (Impact strength (Charpy type), Flexural strength, Hardness (Shore D), Tensile strength, Compression, and Roughness surface test, and some physical tests include (Thermal conductivity and diffusivity), these tests carried out in two stages; first on samples (without immersion) and then on immersed samples in (distilled water and diluted sulfuric acid (0.05N)), where the readings are recorded every two weeks for a period of (8) weeks, in addition the effect of increasing the temperature (20±1°C (R.T), 35°C, 50 °C) has been studied on the samples.

A sample of the four polymers mixtures have been examined using the Scanning Electron Microscopy (SEM), and study the effect of adding reinforcement materials, and also study the topography of the surface of each sample and the knowledge the fine structure for each mixture.

Results showed that the reinforced blends with micro cotton powder and copper (UP+PU+MC+Cu) possess better mechanical properties of Impact strength, Flexural strength,Tensilestrength and Modulus of Elasticity (Compression), also it has the highest surface roughness and thermal conductivity before and after immersion in chemical solutions.

While for the absorbency of solution, all tests are affected by chemical solutions.

التخصصات الرئيسية

العلوم الطبيعية والحياتية (متداخلة التخصصات)

الموضوعات

• الجزيئات الضخمة
• البلاستيك المقوى

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-419035