نتایج جستجو برای: isoconversional methods
تعداد نتایج: 1874444 فیلتر نتایج به سال:
چکیده ندارد.
Plastic pyrolysis is widely studied and implemented at lab-scale but rarely modelled numerically. For the sake of designing efficient industrial reactors, modelling plastic process particle scale could be a prerequisite. Therefore, aim this work to model whole process, on scale, for polypropylene (PP) high density polyethylene (HDPE) inside thermogravimetric analyzer coupled with differential s...
In this study, thermogravimetric measurements of nylon-6/polyethylene double-layer pouch wastes were conducted in N2 under a constant heating-rate mode, and the multiple results analyzed terms degradation features specific temperatures. Experimental show that waste pyrolysis involves one reaction stage, all parameters appear to increase with heating rate. Kinetic analysis non-isothermal data wa...
Ionic liquids (ILs) are the safest solvent in various high-temperature applications due to their non-flammable properties. In order obtain thermal stability properties, thermogravimetric analysis (TGA) is extensively used analyze kinetics of decomposition process. This review summarizes different methods and finds isoconversional superior Arrhenius calculating activation energy, two tools—the c...
اثر افزایش مقادیر کم از خاک رس (کلی) اصلاح شده (کلویزیت b??) و پلی ال بازیافتی روی تخریب گرمایی از پلی یورتان نرم، به وسیله تجزیه حرارتی دینامیک (غیرهم دما) در سه سرعت گرمادهی (0c min-1 ?? و?? ،?/?) در اتمسفر نیتروژن بررسی شده بود. روش های isoconversional (model – free) (شامل روش های فلاین، وال و ازاوا (fwo)، کیسینجر، آکاهیرا و سانوز(kas) و تانگ (tang)) و model – fitting (روش های کوتس و ردفر...
سینتیک تخریب حرارتی خانواده ای ازپلیمرهای گرما سخت (پلی آمیدها) با استفاده از تکنیک tga ، در سه سرعت گرمادهی (0c min-1 20 و15 ،5/7) در اتمسفر نیتروژن بررسی شده است. روش های isoconversional (model – free) )از قبیل روش های فلاین، وال و ازاوا (fwo)، کیسینجر، آکاهیرا و سانوز(kas) و تانگ (tang) (و model – fitting (روش کوتس و ردفرن ((cr)استفاده شده اند تا سه تایی سینتیکی یعنی انرژی فعالسازی، فاکتو...
Composite materials based on aluminium fumarate (AF) and CaCl2 have been developed for the storage of energy from renewable waste sources. Salt-Porous Matrix (CSPM) was synthesized by impregnating MOF host matrix with various relative salt contents (25–60 wt%). The resulting CSPMs were fully characterized X-ray diffraction, N2 H2O sorption isotherms at −196 25 °C, respectively, scanning electro...
Abstract In this paper, films based on sustainable polymers with variable charge have been investigated by non-isothermal thermogravimetry in order to predict their lifetime, which is a key parameter for potential use numerous technological and biomedical applications. Specifically, chitosan has selected as positively charged biopolymer, while alginate chosen negatively biopolymer. Among non-io...
In this research, the thermal stability and decomposition kinetics of pentaerythritol tetranitrate (PETN) and Pentastite explosives have been studied experimentally using non-isothermal differential thermal analysis (DTA) and thermo-gravimetric (TG) methods at heating rates of 4.0, 6.0, 8.0 and 10.0 °C/min. The kinetic parameter of activation energy (Ea) and critical ignition temperature fo...
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