نتایج جستجو برای: thermo degradation

تعداد نتایج: 164481  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1392

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

2000
M. C. B. Abdalla A. L. Gadelha I. V. Vancea

On (b, c)-system at finite temperature in thermo field approach Abstract We construct the finite temperature field theory of the two-dimensional ghost-antighost system within the framework of thermo field theory.

Journal: :Polymer Degradation and Stability 2022

Poly(ethylene terephthalate) (PET) has wide usage in packaging and fiber industries thanks to its superior mechanical, thermal, barrier properties. It is also one of the "big five" recyclable plastics with well-established procedures. In many textile film products, flame retardants (FRs) are added PET for fire-safe applications. However, PET/FR products often not designed recycling, downgrade d...

2015
Krishnan A. Iyer Gregory T. Schueneman John M. Torkelson

Cellulose nanocrystals (CNCs), a class of renewable bionanomaterials with excellent mechanical properties, have gained major interest as filler for polymers. However, challenges associated with effective CNC dispersion have hindered the production of composites with desired property enhancements. Here, composites of polypropylene (PP) and low density polyethylene (LDPE) with 5e10 wt% unmodified...

2013
Guoping Chen Xin Wang Qinghuo Liu

Time reversal imaging method based on full wave numerical technique for likely breast tumors biological tissue in the Microwave-Induced Thermo-Acoustic Tomography (MITAT) system is discussed. In this paper, the mechanism of microwave-induced thermo-acoustic is strictly described based on thermodynamics and thermo-diffusion principles; the equivalent relationship between the absorbed microwave e...

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