5467

5127

كارشناسي ارشد

پليمر- صنايع پليمر

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي

1389

ده،97ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

مرتضي صادقي، نسرين شيخ

سعيد نوري خراساني

24/7/89

روح الله باقري،‌محمود معصومي

مهندسي شيمي

ID5127

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Investigation of morphological rheological and mechanical properties of polystyrene polybutadiene blends the effect of compatibilizer nano particles and electron beam on its properties Hossein Aghaei h aghaei@ce iut ac ir Date of Submission 2010 05 30 Department of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisors Morteza Sadeghi m sadeghi@cc iut ac ir and Nasrin Sheikh nashikh@aeoi org ir Abstract Poly styrene PS is a general polymer and its impact property is very weak For solving this problem researchers were blending this polymer with poly cis 1 4 butadiene PB Blend of these polymers is immiscible and use of compatible agent is necessary In this study rheologycal and mechanical properties of blend with two compatibilizer agents and without any compatibilizer agents were studied Also the effect of electrom beam and nano clay on blend whit most effiective compatibilizer was investigated Mixing process has been done by using internal mixing Linear viscoelstic properties rheology electron radiation and nomination of layer of nanoclay distance have been investigated by using dynamic rheometer scanning electron microscopy SEM electron beam machine and X ray diffraction XRD In first part of this study effect of different amount of compatible agents styrene butadiene rubber SBR and styrene butadiene styrene SBS on mechanical and rheological properties and morphology of blend have been investigated Results show that SBS is better than SBR as a compatible agent for blending and the blend with 9wt rubber has the best toughness property The breacking strength increase as radiated sampls undergone tensile testing It was due to PB crosslinking in the blends of PS PB Meanwhile the impact strength of radiated sampls were decreased According to results blending of PS with PB by using compatible agent and nanoclay particles is the way to increase the impact properties of PS Keywords blend poly styrene PS poly butadiene PB compatible agent nanocomposite electron beam

مرتضي صادقي، نسرين شيخ

سعيد نوري خراساني

روح الله باقري،‌محمود معصومي