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Article
Study of The Mechanical Properties For Particulate Polymer Blend Composite
دراسة الخصائص الميكانيكية لمادة متراكبة دقائقية مبنية على أساس ( خليط بوليمري)

Authors: بلقيس محمد ضياء --- أحمد ستار جبار
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 2 Pages: 76-85
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

This research involves using epoxy resin and (Nitride Butadiene RubberNBR) to form a blend with different resin ratios (90 – 10)%, (80 – 20)%,(70 – 30)%, and (60 – 40)% to achieve better ratio for impact strength as afunction of better toughness; then reinforced with SiO2 and Al2O3 powders with(20%) volume fraction. Mechanical properties were studied including impactstrength, wear resistance, and hardness before and after immersion in water andHCl (0.5N).Results showed that the composite (epoxy+NBR+SiO2) had betterproperties compared with blend and Al2O3 composite. Also the acid solution hadaffected then properties more than water. All impact and wear and hardnessdecreased after immersing in solution.

Keywords

NBR --- polymer blend --- wear --- impact


Article
Studing The Mechanical Properties Of Ternary Blends Of Hdpe/Pp/Abs

Authors: Zanaib.Y.Shnea --- Nabeela A. Mohammed
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2008 Volume: 26 Issue: 7 Pages: 885-893
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this work a type of polymer blend has been prepared from mixing differentpercent (40,50,60, and 70) % of High-density polyethylene, polypropylene and adding 6%weight percent of acrylonitril-butadiene-styrene by using single-screw extruder. Theextrusion process concentrated on the homogeneous mixing manner among materialsthrough a regular selection of machine screw revolution per minute and temperature used inextrusion process. Some of mechanical properties such as impact strength, modulus ofelasticity and shore hardness of polymer blend, were determined at different weight fractionof blend. It was found that the addition (6%wt) of ABS to the binary blends HDPE/PP leadsto increase the modulus of elasticity, the impact strength and shore hardness.On the other hand increasing % HDPE content from 40 to 70wt% in HDPE/PPternary blends leads to increase the modulus of elasticity from 166.35 Mpa to 186.25 Mpa,and impact strength increase from o.o52 to o.o6 J/mm2 while decreases the shore hardnessfrom 89 to 69.

في البحث الحالي تم تحضير خلائط بوليمرية جديدة والتي هي عبارة عن مخلوط بوليمري،40,50 ) من البولي اثلين العالي الكثافة مع البولي , يتكون من مزج نسب وزنية مختلفة%( 60,70بروبلين مع إضافة نسبة وزنية%( 6) من اكريلونتريل-بيوتا دين-ستايرين(وذلك باستخدام جهاز الباثقةالمنفرد).تم استخدام عملية البثق في تحضير المواد المتراكبة وذلك بواسطة استخدام ماكنة البثق أحاديةاللولب حيث ركزت على أسلوب الخلط المتجانس بين المواد من خلال تحديد سرعة دوران اللولب الماكنةودرجات الحرارة المستخدمة في عملية البثق. وبعد ذلك جرت دراسة بعض الخصائص الميكانيكية مث لمقاومه الصدم ،معامل المرونة وصلادة شور ولجميع خلائط بوليميرية المحضرة. والنتائج التي تم الحصولعليها أوضحت عند إضافة%( 6) من اكريلونتريل-بيوتا دين-ستايرين الى خلائط ثنائي( البولي اثلين العاليالكثافة –البولي بروبلين) ادى الى زيادة معامل المرونة ,قوه الصدمة وصلادة شور. من ناحية أخرى وجدبأن زيادة اضافة البولي اثيلين عالي الكثافة من( 40 الى 70 )% إلى خلائط ثلاثية (البولي اثيلين عاليالكثافة-البولي بروبلين - اكريلونتريل-بيوتا دين-ستايرين) تحسنت الكثير من الخواص الميكانيكية حيثادى الى زيادة معامل المرونة م ن( 166,35 )إلى ( 186,25 )ميكاباسكال وقوه الصدمة م ن.( 0,053 الى 0,060 )جول/مليملتر 2 . بينما قلت صلادة شور من ( 89 ) إلى (


Article
Studying the Impact Strength of (Epoxy with TiO2 and MgO) Composite

Authors: Balkees M.Deya’a --- Fawziea M. Hussien --- Intihah Gatia Dway
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 10 Pages: 1971-1978
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

This work has been done with using of epoxy resin mixed with polystyrene(90/10) % to compose binary blend. Two types of powder (TiO2, MgO) in two volume fractions of (10, 15) % were used as reinforcement materials to the prepared polymer (B).Hand lay-up technique is used in fabrication of the composite samples. Impact test was carried out for the proper samples in both normal condition and after immersion in water, KOH (0.5 N), HCL (0.5 N) solutions for periods ranging up to 8 weeks. After comparing the results between the polymer blend and their composite, it was found that Impact Strength were greater for the matrix (B) after immersion compared with their values beforeimmersion while the results of the composite before immersion show that(B+10%MgO) has higher impact strength (11.333) KJ/m2


Article
The Effect of PVP Addition on the Mechanical Properties Of [84%LLDPE: 15 %(( 100- X) %PP: X%PVP):1%Basalt Particle] Polymer Blend Composites.
دراسة تأثير أضافة (PVP) على الخواص الميكانيكيه للخليط البوليمري المتراكب: [84%LLDPE:15%((100-X)%PP:X%PVP):1%basalt particle]

Authors: Teeb A. Mohammed --- Akram R. Jabur --- Sihama E. salih
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2014 Volume: 32 Issue: 3 Part (A) Engineering Pages: 573-585
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Polymer blends composites were prepared according to the formula [84%LLDPE:15%((100-X)%PP:X%PVP):1%B.P] with weight ratios selected for X values (0,4,8,12,16 %), as strips by double screw extruder and use press process the strips to prepare the samples according ASTM specification, the mechanical properties were studied for all theprepared samples which are (tensile, flexural, compression, impact, hardness, and creep tests). The results are as following:- results showed increment of mechanical properties as PVP ratio increases except elongation, furthermore the results recorded highest values of fracture strength, young modulus, compressive strength, flexural strength, maximum shear stress, flexural modulus and creep modulus at PVP 8% wt. which are (31.32MPa, 0.14GPa, 27.4MPa,24MPa, 0.6MPa, 1.08GPa and 0.558GPa) respectively.While the highest values of fracture toughness and hardness recorded at 12% wt. (1.4696Pa√m), and at 4% wt. (56.5) respectively.

حضرت المتراكبات ذات أساس الخليط البوليمري الثلاثي, وفق الصيغة [84%LLDPE:15%((100-X)%PP:X%PVP):1%B.P] وبنسب وزنية مختارة لقيم x 16,12 ,8 ,4 ,0) %). وقد تم تحضيرها بشكل شرائط حضرت بعملية البثق بواسطة باثقة ثنائية اللولب واستخدمت عملية كبس الاشرطة لتحضير العينات وفق المواصفة القياسية (ASTM) , درست الفحوصات الميكانيكية للعينات المحضرة والمتمثلة ( فحص الشد والانحناء والانضغاط والصدمة والصلادة والزحف) أظهرت النتائج زيادة في الخصائص الميكانيكية مع زيادة نسبة PVP باستثناء المطيلية وعلاوة على ذلك سجلت النتائج أعلى قيم لمقاومة الشد, معامل الرونة, مقاومة الانضغاط ومقاوة الانحناء واعلى أجهاد قص ومعامل مرونة الانحناء ومعامل الزحف عند نسبة (8% wt) PVPوهي على الترتيب (31.32MPa , 0.14GPa , 0.6MPa , 27.4MPa , ( 0.558GPa , 1.08Gpaفي حين سجلت أعلى قيم لمتانة الصدمة وقيم الصلادة عند نسبةPVP 12% wt.)) (1.696 Pa√m) و 4%wt ((56.5 على الترتيب .


Article
Morphology and Mechanical Properties of (Epoxy/PVC) Blend
المورفولوجيا والخواص الميكانيكية لخليط (الايبوكسي/ بولي كلوريد الفاينيل)

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Abstract

In this research, the morphology and mechanical properties of (Epoxy/PVC) blend were investigated. (EP/PVC) blend was prepared by manual mixing of epoxy resin with different weight ratios of (Poly vinyl chloride (PVC) after dissolving it in cyclohexanon). Five sheets of polymer blends in wt% included (0%, 5%, 10%, 15% and 20%) of PVC were prepared at room temperature. Tests were carried out to study some mechanical properties for these blends and compared with the properties of pure epoxy. The morphology of the prepared materials was examined to study the compatibility nature between the two polymers under work. It was found that the best ratio of addition is (20%) of PVC. This percentage gave the highest value of tensile strength compared with other percentages of mixing for (EP/PVC) blends.

في هذا البحث تم دراسة المورفولوجيا والخواص الميكانيكية لخليط بوليمري ثنائي. وقد حضر خليط من (الايبوكسي/ بولي كلوريد الفاينيل) بواسطة الخلط اليدوي لراتنج الايبوكسي مع نسب وزنية مختلفة من البولي كلوريد الفاينيل بعد اذابته في مذيب السايكلوهكسانون. وحضرت في هذه الدراسة خمسة الواح بنسب وزنية شملت (0،5،10،15،20) % من ال PVC عند درجة حرارة الغرفة. اجريت مجموعة من الاختبارات لدراسة الخواص الميكانيكية لتلك الخلائط وقورنت مع خواص الايبوكسي النقي . تم فحص المورفولوجيا للمواد المحضرة لغرض دراسة طبيعة التوافق بين البوليمرين قيد البحث. وقد وجد بان النسبة الافضل للاضافة هي (20%) من PVC علاوة على ان هذه النسبة المئوية تعطي القيمة الاعلى لمقاومة الشد مقارنة بنسب اخرى للخلط .


Article
DEVELOPMENT DESIRED PROPERTIES OFPOLYSTYRENE NANO COMPOSITES BY ADDING POLYMERIC MODIFIERS

Author: Sihama Issa Salih
Journal: Iraqi journal of mechanical and material engineering المجلة العراقية للهندسة الميكانيكية وهندسة المواد ISSN: 20761819 Year: 2019 Volume: 19 Issue: 2 Pages: 207-223
Publisher: Babylon University جامعة بابل

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Abstract

The introduction of polymeric blend-based nanomaterials has encouraged the developmentof flexible nanocomposites for structural applications in need of superior mechanical,performance. In current research, three groups of polystyrene blend-based nanocompositessamples were fabricated by melting technique using a twin-screw extruder. These samplesconsist of polymer blend (polystyrene (PS): 1% copolymer (polystyrene (PS)-co- maleicanhydride (MA)): 3%ABS) as a matrix material, was strengthen by three different type ofpowders in nanometer size (silica (SiO2), cement kiln dust (CKD) and Fly ash (FA))individually, with selected weight ratio (0, 0.2, 0.4, 0.6 & 0.8 wt. %) for each of them.Experimental investigation was carried out for tensile properties and fatigue strength besidesFTIR test and morphology analyzing of fracture surfaces by SEM. The results showed thattensile strength values and modulus of elasticity increased as the nanoparticle content incomposite increased, but according to specific percentages of nanoparticle content in thecomposites samples, for three groups of the prepared nanocomposites samples. Moreover,the fatigue test revealed the super-improvement in the fatigue properties of the selectedhybrid nanocomposites samples, as compared with neat polystyrene and polymer blend (PS:1% (PS-co-MA): 3% ABS) and fatigue limit was apparent for all types of hybridnanocomposites materials produced in this work. Morphology of the fracture surface wasshowed a homogeneous structure formation for optimal samples of each group ofcomposites, indicating a good compatibility between the component materials of polymerblend and the reinforcement nanoparticles.


Article
Synthesis and Antibacterial Activity of PEG Polycyclic Acetal Metal Complex/ PVA Polymer Blend Film

Authors: Maha A.Younus --- Media Umran Ali
Journal: Ibn Al-Haitham Journal For Pure And Applied Science مجلة ابن الهيثم للعلوم الصرفة والتطبيقية ISSN: 16094042/ 25213407 Year: 2020 Volume: 33 Issue: 3 Pages: 44-54
Publisher: Baghdad University جامعة بغداد

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Abstract

Polyacetal was synthesized from the reaction of Polyethylene glycol with 4- dimethyl aminobenzaldehyde. Polymer metal complex was synthesized by the reaction with Ag+; polymer blend with polyvinyl alcohol was synthesized solution casting technique. All synthesized compounds were characterized by FT-IR in addition to the antimicrobial activity. The FT-IR spectra indicate the formation of the polyacetal. The DSC results indicate the thermal stability regarding the synthesized polymer blends. The synthesized polyacetal, its metal complex and PA blend against four types of bacteria (gram+ve) Staphylococcus aureas, Bacillus subtilis and (gram –ve) Klebsiella pneumoniae, Escherichia Coli were evaluated. The results revealed that the polyacetal-Ag complex has the greater potential against all kinds of bacteria than polyacetal and polymer blend


Article
Study Some of Mechanical Properties and Effects of Immersion in Solution of (Epoxy /Unsaturated Polyester) Blend Which Reinforced with Glass Fiber
دراسة بعض الخواص الميكانيكية وتأثير الغمر بالمحاليل لخليط ( اليبوكسي والبولي أستر غير المشبع) المدعم بالياف الزجاج

Author: بشرى حسني موسى
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 10 Pages: 464-473
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this research, polymer blend was prepared from Epoxy resin and unsaturated polyester resin as matrix material (EP/UPE) with weight ratio (90/10) %. E-glass fibers type (woven roven) was used as a reinforcement material with volume fraction for fibers (Vf =30 %) by using hand lay-up method. Some mechanical properties were studied on the specimens of the above mentioned materials and then the results of the blend (EP/UPE) compared with its composite which was reinforced with glass fibers. The samples were immersed in (H2SO4) and (NaOH) solutions with normality (0.1 N) at room temperature for (7,14, 21, 28) days. The effects of the immersion were noticed on the hardness and impact strength values. It was found that the reinforcement with glass fiber leads to the increasing of both impact strength and shore hardness of the composite before theimmersion. The effects of immersion showed decreasing of hardness values after immersion samples in to both above solutions while the results of impact strength showed an increasing after the immersion in to the acidic solution and decreasing of the pure blend and its composite after the immersion in to the basic solution.


Article
Mechanical and Morphological Properties of HDPE: PP and LDPE: PP Polymer Blend Composites Reinforced with TiO2 particles
الخواصالمیكانیكیة و المجھریة لمتراكبات الخلائط البولیمریة HDPE: PP و LDPE: PP المقواة بدقائق اوكسید التیتانیوم

Authors: Sihama I. Salih --- Abdullkhaliq F.hamood --- Alyaa H. Abdalsalam
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2013 Volume: 31 Issue: 12 Part (A) Engineering Pages: 2211-2227
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this research two groups of polymer blends have been prepared First group included (High density polyethylene (HDPE): Polypropylene (PP))While the Second group(included Low density polyethylene (LDPE): Polypropylene (PP)) both groups prepared withpolypropylene of (20% and 80%). From the results of tensile test for the prepared blends it has been showed that the optimum blending ratio was (20%LDPE:80%PP and 20%HDPE:80%PP) which thenreinforced with (2, 5 and 8wt%) oftitanium dioxide (TiO2), particle size (0.421μm). Titaniaparticles weremechanically mixed with the polymers prior tomelt mixing for better dispersion.Polymerblend composites were obtained by using single screw extruder. Results showed that mechanical properties increased as titania content increased except elongation.Furthermore the result recorded highest values ofimpact strength and fracture toughness at2%wt TiO2which is 312 Mpa and 572.8Mparespectively,for the polymer blend (20%HDPE: 80%PP) composite and for the polymer blend (20%LDPE: 80%PP) composites the impact strength and fracture toughness are 262.5Mpa and 468 Mpa respectively.The mechanical properties values of 20%HDPE: 80%PP is higher than 20%LDPE: 80%PP polymer blendcomposites. Scanningelectron microscopy (SEM) imagesshowed that there isbonding developed between TiO2 and polymer blends in some regions.

Keywords

Polymer blend --- TiO2 --- HDPE --- PP --- composite --- Mechanical properties


Article
Study Tensile Strength and Wear Rate for Unsaturated Polyester Resin and Nitrile butadiene Rubber Polymer Blend
دراسة مقاومة الشد و معدل البلى لخليط بوليمري من راتنج البولي استر غير المشبع ومطاط نايترايل بيوتاديين

Author: Entihaa G. Daway أنتهاء كاطع دواي
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2015 Volume: 11 Issue: 2 Pages: 45-50
Publisher: Baghdad University جامعة بغداد

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Abstract

Binary polymer blend was prepared by mechanical mixing method of unsaturated polyester resin with Nitrile Butadiene Rubber (NBR) with different weight ratios (0, 5, 10 and 15) % of (NBR). Tensile characteristics and wear rates of these blends were studied for all mixing ratios. The microstructure of fracture surfaces of the prepared samples were investigated by optical microscope. The results were showed that strain rates of the resin material increase after blending it with rubber while the ultimate tensile strength and Young’s modulus values of it will decrease. It is also noticed that the wear rate of resin decreases with increasing of (NBR) content.

تم تحضير خليط بوليمري ثنائي بطريقة الخلط الميكانيكي لراتنج البولي استرغيرالمشبع مع مطاط (نايترايل بيوتاديين) وبنسب وزنية مختلفة من المطاط (0 ،5،10،15) %. وقد تم دراسة خصائص الشد ومعدلات البلى لتلك الخلائط لجميع نسب الخلط. واستخدم المجهر الضوئي لفحص البنية المجهرية لسطوح الكسر للنماذج المحضرة . اظهرت النتائج بان معدلات الانفعال للمادة الراتنجية تزداد بعد خلطها مع المطاط في حين تنخفض القيمة القصوى للشد ومعامل يونك لها. كما لوحظ بان معدل البلى يتناقص مع زيادة محتوى المطاط (NBR).

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