scholarly journals Tailoring the Optical Properties of Polymers Blend Nanocomposites

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Y.K. Saraswat ◽  
Shalini Agarwal ◽  
Vibhav K. Saraswat
Keyword(s):  
Optical Properties ◽  
Optical Constants ◽  
Dielectric Constants ◽  
Solution Casting ◽  
Structural And Optical Properties ◽  
Casting Method ◽  
Tio2 Content ◽  
Vis Spectroscopy ◽  
Solution Casting Method ◽  
Blend Nanocomposites

The presented work deals with the structural and optical properties of chemically synthesized TiO2 nanoparticles filled PC/PS blend nanocomposites. A series of PC/PS (100/0, 50/50, 0/100 wt%/wt %) -TiO2 (1, 2, 3 wt %) blend nanocomposites have been prepared by solution casting method. Prepared blend nanocomposites have been subjected to XRD, SEM and FTIR for structural analysis. Optical constants have been analyzed using UV-Vis spectroscopy. The XRD, SEM and FTIR spectrum confirms the formation of PC/PS-TiO2 blend nanocomposites. Results reveal the decrease in band gap and enhancement in optical constants like, extinction coefficient, refractive index and dielectric constants of blend nanocomposites with nanofiller TiO2 content.

scholarly journals Study of the Effect of Berry Paper Mulberry on Optical Properties of Poly Methyl Methacrylate

2014 ◽  
Vol 11 (2) ◽  
pp. 695-701
Author(s):  
Baghdad Science Journal
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Methyl Methacrylate ◽  
Optical Constants ◽  
Energy Gap ◽  
Dielectric Constants ◽  
Work Study ◽  
Casting Method ◽  
Poly Methyl Methacrylate ◽  
Properties Of Composites

In this work, study the optical properties of composites consisting of poly Methyl Methacrylate and Berry Paper Mulberry. The samples of composites were prepared using casting method .The Berry Paper Mulberry (BPM) was added by different concentrations are (0, 2, 4 and 6)wt.%. The optical properties of composites have been studied in the wavelength range (200-800)nm. The absorption coefficient ,energy gap, refractive index, extinction coefficient and dielectric constants have been determined. The results show that the optical constants change with increase of BPM concentrations .

Synthesis, characterization and optical properties of polyvinyl alcohol–cerium oxide nanocomposite films

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74354-74366 ◽  
Author(s):  
K. S. Hemalatha ◽  
K. Rukmani
Keyword(s):  
Optical Properties ◽  
Polyvinyl Alcohol ◽  
Cerium Oxide ◽  
Nanocomposite Films ◽  
Solution Casting ◽  
Uv Filters ◽  
Casting Method ◽  
Solution Casting Method

PVA–CeO2 nanocomposite films were synthesized by solution casting method and exhibit tape like nanoribbon structure in the 25 wt% CeO2 films. The 2.5 wt% and 25 wt% CeO2 films are suitable for UV filters while the 2.5 wt% film shows highest photoluminescence.

Polymer-based composites with improved energy density and dielectric constants by monoaxial hot-stretching for organic film capacitor applications

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51975-51982 ◽  
Author(s):  
Xu Huang ◽  
Kai Wang ◽  
Kun Jia ◽  
Xiaobo Liu
Keyword(s):  
Carbon Nanotube ◽  
Energy Density ◽  
Composite Films ◽  
Dielectric Constants ◽  
Solution Casting ◽  
Organic Film ◽  
Casting Method ◽  
Multiwalled Carbon ◽  
Film Capacitor ◽  
Solution Casting Method

Randomly oriented multiwalled carbon nanotube (MWCNT)/polyarylene ether nitrile (PEN) composite films were prepared by a solution casting method.

scholarly journals The Effect of Stereocomplex Polylactide Particles on the Stereocomplexation of High Molecular Weight Polylactide Blends

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2018
Author(s):  
Muhammad Samsuri ◽  
Ihsan Iswaldi ◽  
Purba Purnama
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
High Molecular Weight ◽  
Nucleating Agent ◽  
Solution Casting ◽  
Casting Method ◽  
Crystalline Fraction ◽  
Crystalline Structures ◽  
Solution Casting Method

Stereocomplexation is one of several approaches for improving polylactide (PLA) properties. The high molecular weight of poly L-lactide (PLLA) and poly D-lactide (PDLA) homopolymers are a constraint during the formation of stereocomplex PLAs (s-PLAs). The presence of s-PLA particles in PLA PLLA/PDLA blends can initiate the formation of s-PLA crystalline structures. We used the solution casting method to study the utilization of s-PLA materials from high molecular weight PLLA/PDLA blends for increasing s-PLA formation. The s-PLA particles initiated the formation of high molecular weight PLLA/PDLA blends, obtaining 49.13% s-PLA and 44.34% of the total crystalline fraction. In addition, the mechanical properties were enhanced through s-PLA crystalline formation and the increasing of total crystallinity of the PLLA/PDLA blends. The s-PLA particles supported initiation for s-PLA formation and acted as a nucleating agent for PLA homopolymers. These unique characteristics of s-PLA particles show potential to overcome the molecular weight limitation for stereocomplexation of PLLA/PDLA blends.

Structural and Optical Properties of (PVA/PVP:Sr2NO3) Nanocomposites

2021 ◽  
Vol 19 (4) ◽  
pp. 27-37
Author(s):  
Doaa E. Al-Kateb ◽  
Ali R. Abdulridha
Keyword(s):  
Optical Properties ◽  
Energy Gap ◽  
Ftir Spectra ◽  
Structural And Optical Properties ◽  
Casting Method ◽  
Forbidden Transitions ◽  
Nanoparticles Concentration

In this study preparing and investigating of the (PVA/PVP:Sr2NO3) nanocomposites films by using casting method with different concentration of Sr2NO3 as (0, 1, 3, 5, and 7 wt. %). Optical properties obtained by UV-Vis spectrometer, OM and FTIR spectra have been revealed in this study, the absorbance increased by increasing of Sr2NO3 nanoparticles concentrations, the energy-gap (allowed and forbidden) transitions decreased by increasing of the nanoparticles concentration.

The Effect of Ammonium Bromide on Methylcellulose Biopolymer Electrolytes for Electrical Studies

2021 ◽  
Vol 317 ◽  
pp. 426-433
Author(s):  
Siti Nurhaziqah Abd Majid ◽  
Afiqah Qayyum Ishak ◽  
Nik Aziz Nik Ali ◽  
Muhamad Zalani Daud ◽  
Hasiah Salleh
Keyword(s):  
Fourier Transform ◽  
Ammonium Bromide ◽  
Solution Casting ◽  
X Ray Diffraction ◽  
Casting Method ◽  
X Ray ◽  
Electrical Studies ◽  
Biopolymer Electrolytes ◽  
Salt Complex ◽  
Solution Casting Method

The development of biopolymer electrolytes based on methylcellulose (MC) has been accomplished by incorporating ammonium bromide (NB) to the polymer-salt system. The biopolymer electrolytes were prepared via solution-casting method. The conductivity and permittivity characteristics of the material were studied. The biopolymer-salt complex formation have been analysed through Fourier Transform Infrared (FTIR) spectroscopy and X-ray diffraction (XRD). The conductivity of the sample was measured by EIS HIOKI. Upon addition of 20 wt.% of NB, highest conductivity of 3.25×10-4 μScm-1 was achieved at ambient temperature. The temperature dependence of the biopolymer electrolytes exhibit Arrhenius behaviour. This result had been further proven in FTIR study.

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