Study of Chemically Synthesized Polyindole/Poly(vinyl acetate) Conducting Composite Film

2016 ◽  
Vol 362 (1) ◽  
pp. 145-148 ◽  
Author(s):  
D. J. Bhagat ◽  
G. R. Dhokane
Keyword(s):  
Composite Film ◽  
Vinyl Acetate ◽  
Conducting Composite

scholarly journals Flexible Conducting Composite Film with Reversible In‐Plane Folding–Unfolding Property

2021 ◽  
pp. 2102314
Author(s):  
Peiru Sun ◽  
Chuao Ma ◽  
Yong Chen ◽  
Hongliang Liu
Keyword(s):  
Composite Film ◽  
Conducting Composite

Piezochromism of Porous Poly(vinyl alcohol)–Poly(vinyl acetate) Composite Film in Organic Solvents

1995 ◽  
Vol 176 (2) ◽  
pp. 370-377 ◽  
Author(s):  
Sadao Hayashi ◽  
Koji Asada ◽  
Satoshi Horiike ◽  
Hajime Furuhata ◽  
Toshihiro Hirai
Keyword(s):  
Composite Film ◽  
Vinyl Acetate ◽  
Organic Solvents ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Porous Poly

Electrical Resistance Response of Carbon Nanotube / PMMA / PVAc Composite Sensors to Organic Vapours at Low Vapour Concentrations

2007 ◽  
Vol 334-335 ◽  
pp. 809-812
Author(s):  
Dong Lin Zhao ◽  
Hong Mei Chai ◽  
Yun Fang Liu ◽  
Zeng Min Shen
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Methyl Methacrylate ◽  
Composite Film ◽  
Vinyl Acetate ◽  
Electrical Resistance ◽  
Resistance Response ◽  
Organic Vapors ◽  
Poly Methyl Methacrylate ◽  
Nanotube Composites

Thin films of poly(methyl methacrylate) (PMMA)，poly(vinyl acetate) (PVAc) and carbon nanotube composites were produced by different coating methods. The best way to produce the carbon nanotube / PMMA / PVAc composite film with conductive network is dispersing carbon nanotubes in PMMA and PVAc by ultrasonic and by solution casting. Electrical resistance responses of carbon nanotube / PMMA / PVAc composite sensors against various organic vapors at low concentrations are investigated. The experimental results indicate that the composites have high selectivity to various organic vapors at the same concentration. In addition, the electric resistance response of the composites against organic vapors takes place in step with their vapor adsorption procedure. Compatible blends of poly(methyl methacrylate) and poly(vinyl acetate) would be a good candidate to produce a series of electrically conducting carbon nanotubes composite film whose resistance is sensitive to the nature and concentration of an analyte in the vapor phase. The results indicate that the carbon nanotube / PMMA / PAVc composite film can be used as a novel organic vapor sensor to detect, quantify and discriminate various organic vapors.

A novel soft matter composite material for energy-saving smart windows: from preparation to device application

2015 ◽  
Vol 3 (20) ◽  
pp. 10738-10746 ◽  
Author(s):  
Yanzi Gao ◽  
Wenhuan Yao ◽  
Jian Sun ◽  
Huimin Zhang ◽  
Zhendong Wang ◽  
...  
Keyword(s):  
Composite Material ◽  
Liquid Crystal ◽  
Energy Conservation ◽  
Composite Film ◽  
Energy Saving ◽  
Vinyl Acetate ◽  
Soft Matter ◽  
Ethylene Vinyl Acetate ◽  
Smart Windows ◽  
Conservation Efficiency

A novel soft-matter composite film of ethylene-vinyl acetate and liquid crystal with an energy conservation efficiency of 40.4% is developed.

Development of Composite Film for Improving Gas Permeable Properties

2010 ◽  
Vol 93-94 ◽  
pp. 647-650
Author(s):  
Suntaree Siraratprapa ◽  
Chuanchom Aumnete ◽  
Waranya Phompan ◽  
Suebpong Kongniam ◽  
Jittiporn Kruenate
Keyword(s):  
Composite Film ◽  
Vinyl Acetate ◽  
Gas Permeability ◽  
Ethylene Vinyl Acetate ◽  
High Porosity ◽  
Ph Indicator ◽  
Accurate Detection ◽  
Internal Mixer

Generally, a suitable polymer for using as pH indicator packaging should exhibit high porosity to provide a maximum gas permeability which lead to an accurate detection. Ethylene vinyl acetate (EVA) is normally used as such application. However, the gas permeability of EVA was fairly low as 1685.0940 cc/ (m2-day) which not good enough for used as pH indicator packaging application is. To increase a permeability of gas, high porous diatom incorporating with biopolymer was mixed into EVA polymer via internal mixer. It was found that the gas permeability of EVA filled porous diatom/biopolymer was increased up to 4204.2225 cc/ (m2-day). This property is one of the crucial properties for further design for pH indicator packaging in NHAM product.

Conducting composite film based on polypyrrole and crosslinked cellulose

2001 ◽  
Vol 80 (9) ◽  
pp. 1368-1373 ◽  
Author(s):  
Wusheng Yin ◽  
Jun Li ◽  
Yongming Li ◽  
Jingpin Wu ◽  
Tiren Gu
Keyword(s):  
Composite Film ◽  
Conducting Composite

Electromechanical Behavior and Microstructure of Highly Sensitive Polyaniline/Ethylene Vinyl Acetate Composite Piezo-Resistive Materials

2016 ◽  
Author(s):  
Indu Chanchal Polpaya ◽  
C. Lakshmana Rao ◽  
Susy Varughese
Keyword(s):  
Composite Film ◽  
High Sensitivity ◽  
Ethylene Vinyl Acetate ◽  
Strain Sensing ◽  
Free Standing ◽  
Nano Structure ◽  
Conducting Composite ◽  
Electrical Hysteresis ◽  
Sensing Applications ◽  
Highly Sensitive

The unique micro/nano-structure of an intrinsically conducting polymer can be tuned to get higher gauge factors (GF) and reliability, which make them better materials for piezo-resistive applications than conducting carbon based composites and metallic composites. This work reports a highly sensitive conducting polyaniline (PANI)-based composite film that showed a GF ∼66. This high GF was achieved by forming a particular microstructure of conducting PANI particles in a free standing film of PANI-DBSA/EVA. The paper also attempts to explain the mechanism for the observed high sensitivity using the electronic percolation theory, shape and size of the conducting particles and the changes in the microstructure, due to strain. The high sensitivity, high stability during cyclic loading and low electrical hysteresis together with high mechanical strength make PANI-DBSA/EVA conducting composite film a promising material for piezo-resistive strain sensing applications.

Inhibition of Radical-Initiated Vinyl Acetate Polymerisation by Tobacco Smoke Fractions

1974 ◽  
Vol 7 (5) ◽  
Author(s):  
M.A. Nisbet ◽  
S. Schmeller
Keyword(s):  
Benzoyl Peroxide ◽  
Vinyl Acetate ◽  
Tobacco Smoke ◽  
Boiling Point ◽  
Water Bath ◽  
Measuring Time ◽  
Time Required

AbstractBoth the vapour and particulate phases of tobacco smoke have been shown to retard benzoyI-peroxide-initiated polymerisation of vinyl acetate by interception of the radicals involved in the polymerisation process. The extent of inhibition of polymerisation by test compounds is estimated by measuring time taken for a mixture of monomer and benzoyl peroxide, immersed in a water-bath at 70°C, to reach a spontaneous boil and comparing it with the time required for a similar mixture with added retarder to reach boiling point. Units are expressed as minutes of inhibition per part per million of inhibitor × 10

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