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Improvements of Flame-Retardant Polymer Based Compositions Characteristics / By Mohamed Makram Elwany; Under the supervision of Prof. Ehab Fouad Abadir, Prof. Sahar M. El Marsafy, Dr. Ahmed Eletreby Hawass

By: Contributor(s): Material type: TextTextLanguage: English Summary language: English, Arabic Producer: 2024Description: 147 pages : illustrations ; 30 cm. + CDContent type:
  • text
Media type:
  • Unmediated
Carrier type:
  • volume
Other title:
  • تحسين خصائص اللدائن المثبطة للهب [Added title page title]
Subject(s): DDC classification:
  • 660
Available additional physical forms:
  • Issued also as CD
Dissertation note: Thesis (Ph.D)-Cairo University, 2024. Summary: There have been significant efforts made to develop gasless delay compositions. Military and mining applications may require different gasless compositions. Gasless compositions have been used effectively for generating proper delay systems with time delays ranging from milliseconds to several seconds. An appropriate delay system can meet the demand required for military applications such as, rocket assisted ammunition and pyrotechnic-based fuses. As far as processing is concerned, its impact on manufacturing, safety and efficiency was much improved by developing the mixture ingredients including fuel, oxidizer, binder and burning rate modifier ratios and types, sometimes additives are utilized. This yields in the construction of certain potential gasless delay components with outstanding performance and stability characteristics that can operate in extremely rough environmental conditions. An extensive theoretical and experimental work in the characterization and development of different gasless delay composition, this was achieved through investigating different parameters. Theoretical calculation using thermochemical equilibrium ICT code, is very useful tool for saving effort, cost and time which guide the main attitude of this research. It is anticipated that in future it will be possible to achieve mass production for gasless delay element through polymer extrusion technology. In this regard, suitable gasless delay composition based on polyurethane composition are appropriate for high pressure rocket motors. Summary: المركبات البيروتكنيكية عبارة عن مواد قابلة للاحتراق عند اشعالها بواسطة عدة حوافز مختلفة، لإنتاج تأثيرات حيوية فريدة ومحددة مثل الحرارة والضوء والدخان والصوت. تهدف هذه الدراسة الى ما يلي: أولاً، إعداد خلطات مختلفة من المركبات البيروتكنيكية التي يمكن تطبيقها في أنظمة المؤخرات الزمنية غير الغازية. ثانياً، تحديد واختيار مخلوط المؤخر الزمني الأمثل وفقًا لمتطلبات التصميم والتطبيق. ثالثاً، تصنيع عنصر المؤخر الزمني غير الغازي وفقاً للمواصفات العسكرية العالمية، لتلبية متطلبات تصنيع الذخائر الحديثة. تقدم هذه الرسالة العديد من الحلول البديلة التي تسهم في تطوير قطاع الإنتاج الحربي ، خاصة في مجال أنظمة الصواريخ، مقذوفات الدفع الصاروخي ، طابات الذخائر.
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.04.Ph.D.2024.Mo.I. (Browse shelf(Opens below)) Not for loan 01010110090996000

Thesis (Ph.D)-Cairo University, 2024.

Bibliography: pages 140-147.

There have been significant efforts made to develop gasless delay compositions.
Military and mining applications may require different gasless compositions. Gasless
compositions have been used effectively for generating proper delay systems with time
delays ranging from milliseconds to several seconds.
An appropriate delay system can meet the demand required for military
applications such as, rocket assisted ammunition and pyrotechnic-based fuses. As far as
processing is concerned, its impact on manufacturing, safety and efficiency was much
improved by developing the mixture ingredients including fuel, oxidizer, binder and
burning rate modifier ratios and types, sometimes additives are utilized.
This yields in the construction of certain potential gasless delay components with
outstanding performance and stability characteristics that can operate in extremely
rough environmental conditions.
An extensive theoretical and experimental work in the characterization and
development of different gasless delay composition, this was achieved through
investigating different parameters.
Theoretical calculation using thermochemical equilibrium ICT code, is very useful
tool for saving effort, cost and time which guide the main attitude of this research.
It is anticipated that in future it will be possible to achieve mass production for
gasless delay element through polymer extrusion technology. In this regard, suitable
gasless delay composition based on polyurethane composition are appropriate for high
pressure rocket motors.

المركبات البيروتكنيكية عبارة عن مواد قابلة للاحتراق عند اشعالها بواسطة عدة حوافز مختلفة، لإنتاج تأثيرات حيوية فريدة ومحددة مثل الحرارة والضوء والدخان والصوت. تهدف هذه الدراسة الى ما يلي: أولاً، إعداد خلطات مختلفة من المركبات البيروتكنيكية التي يمكن تطبيقها في أنظمة المؤخرات الزمنية غير الغازية. ثانياً، تحديد واختيار مخلوط المؤخر الزمني الأمثل وفقًا لمتطلبات التصميم والتطبيق. ثالثاً، تصنيع عنصر المؤخر الزمني غير الغازي وفقاً للمواصفات العسكرية العالمية، لتلبية متطلبات تصنيع الذخائر الحديثة. تقدم هذه الرسالة العديد من الحلول البديلة التي تسهم في تطوير قطاع الإنتاج الحربي ، خاصة في مجال أنظمة الصواريخ، مقذوفات الدفع الصاروخي ، طابات الذخائر.

Issued also as CD

Text in English and abstract in Arabic & English.

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