پديد آورنده :
راستگو سي سخت، محسن
عنوان :
روش نوين براي توليد نانو ذرات كربنات كلسيم به عنوان پر كننده براي مواد پليمري
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
﴿ مهندسي شيمي ﴾
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان ، داشكده مهندسي شيمي
صفحه شمار :
ده، 131، [I] ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
سعيد نوري خراساني ، علي زاد هوش
استاد مشاور :
محمد حسين عنايتي
توصيفگر ها :
ناتو تكنولوژي , سل- ژل , فرآيند چگالش , نانو كامپوزيت ها , ديسپرس كردن , روش موري- تاناكا , تئوري نيكولو ئوس - ناركيس , مدل هاشين - شتريكمن , مدل هالپين - تساي
استاد داور :
محسن نصراصفهاني ، محمدحسين فتحي
تاريخ ورود اطلاعات :
1396/02/31
رشته تحصيلي :
مهندسي شيمي
چكيده فارسي :
به فارسي و انگليسي : قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract Nanotechnology is the linkage of Metallurgy chemistry physics science andengineering to provide methods and processes for production and assembly of usefulstructures and preparation and production of materials and devices which are at least in oneof their dimensions of nano scale 10 9 10 7 Nanocomposites are strong replacements forfilled polymers containing fillers or ordinary blend polymers Precipitated calciumcarbonate as filler in paper industry paint drug and plastics has been used Using calciumcarbonate nanoparticles instead of traditional particles shows apparent changes in containermaterials So lots of researches have been done on its preparation and production methods In this work after introducing the most applicable production methods we have presenteda new method based microemulsion method for the synthesis of calcium carbonatenanoparticles In formation of microemulsions a mixture of Span 80 and Tween 80surfactants instead of just one of surfactants was used and the effect of surfactant value onthe size of synthesized nanoparticles was investigated too Using XRD the mean size ofparticles was estimated around 38 nm According to comparison of effect of synthesizednanoparticles on physical mechanical properties of polymeric nanocomposites andtraditional composites first the surface of calcium carbonate nanoparticles and micron sizecalcium carbonate particles was treated using solution of stearic acid in toluene in boilingpoint of toluene for 1h Then using synthesized calcium carbonate nanoparticles andmicron size calcium carbonate particles too as filler in polymeric matrix of polyamide 66 nano and traditional composites were prepared Finally tensile properties of the both ofnano and traditional composites where investigated Results of experimentals showenhances in the tensile properties of both kinds of composites In comparison withelasticity module of non reinforced polyamide 66 in weight fraction of 2 5 5 and10 elastic modulus of nanocomposites increased 9 2 22 4 and 33 5 respectively while elastic modulus of traditional composites increased 2 3 11 7 and 20 3 respectively In order to prediction of elastic modulus theoretically for comprising withexperimental data rule of mixture Guth Nicolais Narkis hashin and halpin Tsaiequations were used Results show that use of theoretical models for prediction of elasticmodulus is not very consistent for particulate nanocomposites However these models canbe used to prediction of elastic modulus surely because experimental data are upper thantheoretical data
استاد راهنما :
سعيد نوري خراساني ، علي زاد هوش
استاد مشاور :
محمد حسين عنايتي
استاد داور :
محسن نصراصفهاني ، محمدحسين فتحي
