Effect of polyvinyl alcohol on electrical, spectroscopic and thermal properties of gum acacia-based gel electrolytes containing NaOH

2021 ◽  
Author(s):  
Viney Sharma ◽  
Narinder Arora ◽  
Rajiv Kumar ◽  
Simranjit Singh ◽  
Sunaina Verma
Keyword(s):  
Thermal Properties ◽  
Polyvinyl Alcohol ◽  
Gum Acacia ◽  
Gel Electrolytes

scholarly journals Thermal Properties of Carbon Nanotube (CNT) Reinforced Polyvinyl Alcohol (PVA) Composites

2013 ◽  
Vol 17 ◽  
pp. 59-66 ◽  
Author(s):  
Monirul Hasan ◽  
Sujan Kumar Das ◽  
Jahid M.M. Islam ◽  
Md Abdul Gafur ◽  
Enamul Hoque ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Carbon Nanotube ◽  
Polyvinyl Alcohol ◽  
Glass Transition Point ◽  
Casting Method ◽  
Thermo Gravimetric ◽  
Solar Cell Application ◽  
Gum Acacia ◽  
Thermal Analyzer ◽  
Solution Casting Method

Homogeneous Polyvinyl alcohol (PVA)/Carbon nanotube (CNT) composite has been prepared by solution casting method using gum acacia as a surfactant. CNT content in the composite was varied from 5-10% by weight. The thermal properties of PVA/CNT composites were investigated by Thermo Gravimetric/Differential Thermal Analyzer (TG/DTA) and Thermo Mechanical Analyzer (TMA). TG/DTA results showed that higher thermal stability in higher percentage of CNT in the composites. The 10% CNT containing PVA composite exhibit highest onset of melting, glass transition point and offset of melting temperature and the recoded values are 330.4K, 379K and 421.3K respectively. All of the result indicates that the developed PVA/CNT composite might be promising for use in solar cell application

Thermal properties of pure and doped (polyvinyl-alcohol) PVA

1994 ◽  
Vol 42 (6) ◽  
pp. 1113-1122 ◽  
Author(s):  
M. I. Abdel-Ati ◽  
O. M. Hemeda ◽  
M. M. Mosaad ◽  
D. M. Hemeda
Keyword(s):  
Thermal Properties ◽  
Polyvinyl Alcohol

Mechanical and thermal properties of a nanocomposite material which epoxy based and reinforced with polyvinyl alcohol nano fibers contained multiwalled carbon nanotube

2020 ◽  
pp. 002199832096979
Author(s):  
Fatih Yıldırım ◽  
Necati Ataberk ◽  
Mürsel Ekrem
Keyword(s):  
Thermal Properties ◽  
Polyvinyl Alcohol ◽  
Tensile Tests ◽  
Nanocomposite Materials ◽  
Uniaxial Tensile ◽  
Mechanical And Thermal Properties ◽  
Multiwalled Carbon ◽  
Number Of Layers ◽  
Electrospinning Method ◽  
Carbon Nano Tube

In this study, the thermal and mechanical properties of nanocomposite materials were investigated. Produced nanocomposite materials are epoxy-based and reinforced with Multiwalled Carbon Nano Tube dopped polyvinyl alcohol (PVA) nanofibers. Nanofibers were produced by the electrospinning method. Nanofibers were used for reinforcement as 5, 10, and 15 number of layers. These nanocomposite materials were subjected to uniaxial tensile tests at constant tensile speed in accordance with ASTM D882-02 standards. Tensile strength, elasticity modulus, Poisson's ratio, and toughness values were obtained and these values were compared with the values of reference pure epoxy samples without the nanofiber. For obtaining the thermal properties of the samples Thermogravimetric and Differential Thermal Analysis were performed. In order to investigate the damage mechanisms, the fractured tensile test specimens' surfaces were visualized by Scanning Electron Microscopy. Mechanical and thermal properties of the epoxy were improved by using the PVA nanofibers dopped the MWCNT.

Hydroxylated boron nitride nanotube‐reinforced polyvinyl alcohol nanocomposite films with simultaneous improvement of mechanical and thermal properties

2020 ◽  
Vol 41 (12) ◽  
pp. 5182-5194
Author(s):  
Xiaolong Lu ◽  
Pranjal Nautiyal ◽  
Jenniffer Bustillos ◽  
Archana Loganathan ◽  
Cheng Zhang ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Boron Nitride ◽  
Polyvinyl Alcohol ◽  
Nanocomposite Films ◽  
Mechanical And Thermal Properties ◽  
Boron Nitride Nanotube

Effect of Gelatinization on Morphology and Thermal Properties of Polyvinyl Alcohol-Corn Starch Blend Films

2012 ◽  
Vol 724 ◽  
pp. 89-92
Author(s):  
Ji Wei Li ◽  
Xue Gang Luo ◽  
Xiao Yan Lin ◽  
Xian Hong Li
Keyword(s):  
Weight Loss ◽  
Thermal Properties ◽  
Polyvinyl Alcohol ◽  
Corn Starch ◽  
Casting Method ◽  
Scanning Calorimetry ◽  
Blend Films ◽  
Hydrogen Bonding Interactions ◽  
Gelatinized Starch ◽  
Solution Casting Method

The blend films of ungelatinized and gelatinized starch/polyvinyl alcohol (PVA) were prepared by solution casting method. Their morphologies and thermal properties were analyzed by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). A droplet phase was observed in the blends containing ungelatinized starch and a laminated phase was observed in the blends containing gelatinized starch. For both ungelatinized and gelatinized starch/PVA blends the melting temperature (Tm) (210230) of PVA was detected, and the Tm of gelatinized starch/PVA blends was higher than that of the ungelatinized starch/PVA blends. TGA results showed that over the rst 300 the weight loss for ungelatinized starch/PVA blends was higher than that for gelatinized starch/PVA blends, however the gelatinized starch/PVA blends showed the greater weight loss after scanning up to 400. Different morphologies and thermal properties of two types of blends were attributed to the different hydrogen bonding interactions between starch and polyvinyl alcohol.

Sign in / Sign up

Export Citation Format

Share Document