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Effect of Using Metallic Oxides (Al2O3,MgO,TiO2 ) on Flammability and Fire Resistance of Unsaturated Polyester

تأثير استخدام الأكاسيد المعدنية (AL2O3, MGO ,TIO2) على إعاقة و مقاومة اللهب للبولي استر غير المشبع

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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In this paper an experimental investigation of unsaturated polyester(UPR) with different weight fractions(2,4,5,7 )wt% of (Al2O3,MgO,TiO2) as powders ,has been done. the identification of their flammability and fire resistance ranges are found out . the time needed to puncture the samples, the mass loss, the diameter variation ,and the flame effect on the samples surface are measured. the samples were tested by Oxyacetylene flame using a device which is designed in the Faculty of Mechanical and Electrical Engineering labs. The results showed that (MgO) is the best one for its flammability and fire resistance. The longest time before puncture , and the lowest mass loss were achieved by( UPR+ 7% MgO) with(16% mass loss in 112 sec ), while pure UPR has ( 27% mass loss in 45 sec).


Artificial intelligence review:
Research summary
في هذا البحث، تم إجراء دراسة تجريبية لعينات من البولي استر غير المشبع مضاف إليها نسب ضئيلة (2، 4، 5، 7%) من أكاسيد المغنزيوم والألمنيوم والتيتانيوم على شكل بودرة، بهدف تحديد مدى مقاومتها وإعاقتها للهب. تم قياس الزمن المستغرق لتقب العينات، الفقد في الوزن، التغير في القطر، وتأثير اللهب على سطح العينات باستخدام شعلة لهب الأكسي استلين. أظهرت النتائج أن أكسيد المغنزيوم هو الأفضل بين الأكاسيد المستخدمة من حيث مقاومته للهب وإعاقته له، حيث بلغت نسبة الفقد في وزن العينات حوالي 16% عند أعلى نسبة إضافة (7%) مقارنة بالعينات التي لا تحتوي على مواد إضافة والتي بلغت نسبة الفقد فيها حوالي 27%. كما أن زمن تقب العينات المضاف إليها أكسيد المغنزيوم بلغ حوالي 112 ثانية مقارنة مع العينات بدون نسبة إضافة والتي بلغ فيها زمن الثقب حوالي 45 ثانية.
Critical review
دراسة نقدية: على الرغم من أن البحث قدم نتائج مهمة حول تأثير الأكاسيد المعدنية على مقاومة اللهب للبولي استر غير المشبع، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من المفيد تضمين تحليل أكثر تفصيلاً للبنية المجهرية للعينات بعد الاحتراق لفهم آلية عمل الأكاسيد بشكل أفضل. ثانياً، يمكن أن تكون الدراسة أكثر شمولية إذا تم اختبار تأثير الأكاسيد على خصائص ميكانيكية أخرى مثل الصلابة والمتانة. وأخيراً، كان من الممكن تحسين تصميم التجارب باستخدام تقنيات أكثر دقة لقياس التغيرات في الوزن والقطر، مما يزيد من دقة النتائج وموثوقيتها.
Questions related to the research
  1. ما هي الأكاسيد المعدنية التي تم استخدامها في البحث؟

    تم استخدام أكاسيد المغنزيوم والألمنيوم والتيتانيوم.

  2. ما هي نسبة الفقد في الوزن عند استخدام أكسيد المغنزيوم بنسبة 7%؟

    نسبة الفقد في الوزن بلغت حوالي 16%.

  3. ما هو الزمن المستغرق لتقب العينات المضاف إليها أكسيد المغنزيوم بنسبة 7%؟

    الزمن المستغرق بلغ حوالي 112 ثانية.

  4. ما هي التوصيات التي قدمها الباحثون لتحسين مقاومة اللهب للعينات؟

    التوصيات شملت دراسة تأثير اللهب على البنية المجهرية للعينات بعد الاحتراق، وإجراء معالجة حرارية للعينات قبل عملية الاحتراق، ودراسة اللزوجة لمادة الأساس المستخدمة لمعرفة تأثيرها على توزيع مادة الإضافة.


References used
LAOUTID F ; BONNAUD L ; ALEXANDRE M ; LOPEZ-CUESTA J ., New prospects in flame retardant polymer materials: from fundamentals to nano composites , Ph. Dubois , Center of Innovation and Research in Materials and Polymers (CIRMAP), 2007.20-32
HUGHES W., Development and Testing of Flame Retardant Additives and Polymers , the National Technical Information Service (NTIS) , Virginia, 2007.45-55
MOURITZ A ., GIBSON A.G., Fire Properties of Polymer Composite Materials, solid mechanics and its application , 2006, 143
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In this paper an experimental investigation of unsaturated polyester(UPR) with different weight fractions(2,4,5,7 )wt% of (Al2O3,MgO,TiO2) as powders ,has been done. the identification of their flammability and fire resistance ranges are found out . the time needed to puncture the samples, the mass loss, the diameter variation ,and the flame effect on the samples surface are measured. the samples were tested by Oxyacetylene flame using a device which is designed in the Faculty of Mechanical and Electrical Engineering labs. The results showed that (MgO) is the best one for its flammability and fire resistance. The longest time before puncture , and the lowest mass loss were achieved by( UPR+ 7% MgO) with(16% mass loss in 112 sec ), while pure UPR has ( 27% mass loss in 45 sec).
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