Influence of thermal aging on the electrical properties of poly(vinyl chloride)

2006 ◽  
Vol 102 (5) ◽  
pp. 4728-4733 ◽  
Author(s):  
M. Nedjar ◽  
A. Béroual ◽  
A. Boubakeur
Keyword(s):  
Electrical Properties ◽  
Vinyl Chloride ◽  
Thermal Aging ◽  
Poly Vinyl Chloride

Electrical properties of poly(vinyl chloride) compositions

1993 ◽  
Vol 49 (10) ◽  
pp. 1725-1731 ◽  
Author(s):  
A. L. G. Saad ◽  
A. M. Hassan ◽  
E. A. M. Gad
Keyword(s):  
Electrical Properties ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride

scholarly journals Efficient Thermo-Stability and Smoke-Suppression Properties of La Doping Mg-Al LDHs on PVC Nanocomposites

2021 ◽  
Vol 57 (4) ◽  
pp. 297-308
Author(s):  
Jinjie Zhang ◽  
Bin Xu ◽  
Hengxu Wang ◽  
Fupeng Jin ◽  
Jinfeng Dai ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thermal Stability ◽  
Vinyl Chloride ◽  
Layered Double Hydroxides ◽  
Thermal Aging ◽  
Smoke Suppression ◽  
Molar Ratio ◽  
La Doping ◽  
Poly Vinyl Chloride ◽  
Double Hydroxides

Despite the advantages of the non-flammable, good performance and low price, poly (vinyl chloride) (PVC) still suffer from poor thermal stability, restricting its melting process and applications. Although addition of some heat stabilizers can be used to improve the low thermal stability, so far, they normally compromise the environmental issues and smoke density of PVC during combustion. In this work, a series of La doping Mg-Al layered double hydroxides (LaLDHs) with different molar ratio of La3+ / Al3+ were successfully synthesized by coprecipitation-hydrothermal method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectrum (FT-IR), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM). The results showed that the as-prepared LaLDHs exhibit plate-like morphology with a lateral size around 100-180 nm. The different as-prepared LaLDHs were introduced into PVC as heat stabilizer to prepare PVC nanocomposites. The thermal stability and smoke suppression of PVC nanocomposites were investigated by TGA, thermal aging, Congo red and smoke density rating test (SDR), respectively. All the results demonstrated that PVC-LaLDHs2 nanocomposites containing 2% LaLDHs2 (the molar ratio of La3+ / Al3+ is 1 / 3) were optimized, which achieved the maximal T50% value of 337.2 oC, minimal SDR value of 45.6%, and prolonged the thermal aging time from less than 10mins to 90mins, respectively thermal stability time from 1242s to 2751s. In addition, the tensile strength and elastic modulus of PVC-LaLDHs2 respectively increased by 84.4% (56.6 MPa) and 75.5% (1019.4 MPa) with little affecting elongation at break of PVC. LDHs (layered double hydroxides); rare earth ions; thermal stability; smoke suppression; poly (vinyl chloride)

Electrical properties and transport conduction mechanism of nitrile rubber/poly(vinyl chloride) blend

2010 ◽  
pp. NA-NA
Author(s):  
S. A. Mansour ◽  
M. E. Al-Ghoury ◽  
E. Shalaan ◽  
M. H. I. El Eraki ◽  
E. M. Abdel-Bary
Keyword(s):  
Electrical Properties ◽  
Vinyl Chloride ◽  
Conduction Mechanism ◽  
Nitrile Rubber ◽  
Poly Vinyl Chloride

scholarly journals Structure and Electrical Study of New Chemically Modified Poly(vinyl chloride)

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
F. Ammari ◽  
M. Dardouri ◽  
M. Kahlaoui ◽  
F. Meganem
Keyword(s):  
Electrical Properties ◽  
Vinyl Chloride ◽  
Electrochemical Impedance ◽  
Differential Scanning Calorimetric ◽  
X Ray Diffraction ◽  
X Ray ◽  
Chemically Modified ◽  
Poly Vinyl Chloride ◽  
Structural And Electrical Properties ◽  
Electrical Study

The aim of this work was to study the structural and electrical properties of a new polymer obtained by functionalization of a commercial poly(vinyl chloride) (PVC) (Mw = 48000) by grafting aminoalkyl and aminoaryl groups. Modified poly(vinyl chloride) was prepared in two steps. The structural properties of the polymer were systematically investigated by varieties of techniques as differential scanning calorimetric (DSC), thermogravimetry analysis (TG), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. The electrical properties of the polymer were studied by electrochemical impedance spectroscopy (EIS).

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