پديد آورنده :
شاهرخي، پريسا
عنوان :
تهيه ي زينك بورات از پيش ماده هاي2(BPh4) [Zn(en)3]و H3BO3/ZnO و كاربرد آن به عنوان عامل بازدارنده آتش در پلي‌آكريلونيتريل
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي معدني
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
دوازده، [45]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
حسن حدادزاده
استاد مشاور :
شادپور ملك پور
توصيفگر ها :
زينك اسيد , اتيلن دي آمين , بوريك اسيد
استاد داور :
فاطمه داور، محمد ديناري
تاريخ ورود اطلاعات :
1395/12/09
چكيده انگليسي :
45 Materials Chemistry and Physics Preparation of zinc Borate from Zn en 3 BPh4 2 and H3BO3 ZnO precursors and its application as a flame retardment agent in poly acrylonitrile Parisa Shahrokhi Hassan Hadadzadeh Mohammad Kaikhosravi Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 IranAbstractFlame retardants are very important for our life These materials are added to flameableitems to increase their stability against ignition Zinc borates are an important class of flameretardants In this thesis zinc borate has been prepared from two different precursorsincluding Zn en 3 BPh4 2 and H3BO3 ZnO In the first method tris ethylenediamine zinc II tetra phenyl borate Zn en 3 BPh4 2 complex was prepared by reaction of ZnCl2 with enligand in the presence of NaBPh4 in water The prepared Zn II complex was investigatedunder there operation hydrothermal solvothermal and calcination to obtain zinc borate Only in the calcination operation the final product at the calcination temperature of 650 Cis pure zinc borate The products of other operations were impore In the second method amixture of H3BO3 ZnO with a mole ratio of 6 2 was reacted under the hydrothermaloperation at 200 C In this method the final product was zinc borate The prepared zincborates have been characterized by FT IR XRD SEM and TGA In addition the applicationof the prepared zinc borates as a flame retardant was tested in poly acrylonitrile atdifferent weight ratios The results show that the addition of zinc borate to PAN canincrease its stability against ignition and the combustion process imidiately terminatedwhen the sample removed from the flame Therefore the prepared zinc borates are goodcandidates for use as flame retardants Keywords Flame retardant poly acrylonitrile Zinc borate Zinc oxide Ethylenediamine Boricacid E mail address hadad@cc iut ac ir H Hadadzadeh
استاد راهنما :
حسن حدادزاده
استاد مشاور :
شادپور ملك پور
استاد داور :
فاطمه داور، محمد ديناري
