پديد آورنده :
كبريت چي، عباس
عنوان :
بررسي خواص رئولوژيكي قير اصلاح شده با مشتقات پودر لاستيك
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
پليمر - صنايع پليمر
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
نه،125ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
كيقباد شمس، حسن فيروز ي فر
استاد مشاور :
اعظم جلالي آراني
توصيفگر ها :
پيروليز , ريلكيم رابر
تاريخ نمايه سازي :
27/10/89
استاد داور :
مهدي ابطحي، طيبه بهزاد
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Rheological Properties of Tier Rubber Derivatives Modified Bitumen Abbas Kebritchi abbas12822@yahoo com Date of Submission Aug 18 2010 Department of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Kayghobad Shams k shams@cc iut ac ir Abstract The vacuum pyrolysis of Iran s used tires and the use of heavy fractions of the derived pyrolytic oils to modify the performance and rheological properties of bitumen were investigated Two pulverized waste tire samples that are readily available in Iran s market i e Ground tire rubber GTR and reclaimed rubber RR were subject to vacuum pyrolysis in a bench scale homemade setup in the temperature range of 400 600 C and at a total pressure of 2 2 kPa The products of the vacuum pyrolysis process i e Gas carbon black and pyrolytic oil were utilized to evaluate the yields of vacuum pyrolysis via standard mass balances The pyrolytic oils were further fractionated via regular batch distillation and the heavy fractions were characterized using FTIR HNMR C 13NMR SARA GPC and EA techniques The pyrolysis yield averaged 33 11 wt solid residues 49 83 wt pyrolytic oils and 17 03 wt pyrolytic gases and increased temperature showed increased pyrolytic oils and gases and reduced pyrolytic carbon black CBp The characterization results of pyrolytic oils showed similar chemical structures regardless of the feed and temperature and GPC results indicated that the average molecular weight of the pyrolytic oils was in a range of 250 400 g mol with a PDI of about 1 5 which is similar to the average molecular weight of typical petroleum cuts Subsequently the heavy fraction of the pyrolytic oils derived from GTR and RR at 600 C was used to modify the standard and rheological properties of bitumen by simple mixing of bitumen and pyrolytic oil at various proportions The utilization of heavy fractions of the pyrolytic oil as a modifier of bitumen performance properties showed increased penetration and elastic recovery and resulted in decreased softening point and Fraass breaking point Further the heavy fraction of the produced pyrolytic oil enhanced the high service temperature of pure bitumen by reducing its thermal susceptibility The addition of 10 wt of heavy fraction of the pyrolytic oils demonstrated the best results and remarkably improved the ductility of pure bitumen The results of dynamic shear rheology showed that increase pyrolytic oil resulted in decreased cross frequency for storage and loss moduli which means improvement of the low temperature properties of bitumen Finally use of pyrolytic oil in bitumen leads to improved high way low temperature properties of bitumen and good storage stability and aging resistance Keywords pyrolysis bitumen modification rheology ground tire rubber reclaimed rubber
استاد راهنما :
كيقباد شمس، حسن فيروز ي فر
استاد مشاور :
اعظم جلالي آراني
استاد داور :
مهدي ابطحي، طيبه بهزاد
