The effect of modified pluronic on the distribution of fillers in the polyvinyl chloride matrix

2010 ◽  
Vol 115 (3) ◽  
pp. 1732-1741 ◽  
Author(s):  
Nehad N. Rozik ◽  
S. L. Abd-El Messieh ◽  
K. N. Abd-El Nour
Keyword(s):  
Polyvinyl Chloride ◽  
Chloride Matrix

Microsized Graphite Sensors for Potentiometric Determination of Cyclobenzaprine Hydrochloride in Pure Powder, Tablets, and Plasma

2011 ◽  
Vol 94 (6) ◽  
pp. 1807-1814 ◽  
Author(s):  
Nesrin K Ramadan ◽  
Hala E Zaazaa ◽  
Hanan A Merey
Keyword(s):  
Polyvinyl Chloride ◽  
International Union ◽  
Electroactive Material ◽  
Significant Difference ◽  
Intact Drug ◽  
Sensitivity And Selectivity ◽  
Ph Range ◽  
The U.S ◽  
Chloride Matrix

Abstract Two cyclobenzaprine hydrochloride (CZ) microsized graphite selective sensors were investigated with dibutylsebacate as a plasticizer in a polymeric matrix of carboxylated polyvinyl chloride (PVC-COOH) in the case of sensor 1, based on the interaction between the drug and the dissociated COOH groups in the PVC-COOH. Sensor 2 was based on the interaction between the drug and ammonium reineckate, which acted as anionic electroactive material in the presence of polyvinyl chloride matrix. The two sensors were constructed by using 2-hydroxy propyl β-cyclodextrin as an ionophore, which has a significant influence on increasing the membrane sensitivity and selectivity of both sensors. Fast and stable Nernstian responses of 1 × 10–5–1 × 10–2 and 1 × 10m–4–1 × 10–2 M for the two sensors, respectively, with slopes of 58.6 and 55.5 mV/decade, respectively, over the pH range 2–4 were obtained. The proposed method displayed useful analytical characteristics for determination of CZ in its pure powder form with average recoveries 99.95 ± 0.23 and 99.61 ± 0.34% for sensors 1 and 2, respectively, and in plasma with good recoveries. The sensors were also used to determine the intact drug in the presence of its degradate and, thus, could be used as stability-indicating methods. The obtained results by the proposed methods were statistically analyzed and compared with those obtained by the U.S. Pharmacopeia method; no significant difference for either accuracy or precision was observed. Results obtained with the two electrodes revealed their performance characteristics, which were evaluated according to International Union of Pure and Applied Chemistry recommendations.

Kinetic features of the thermal decay of azodicarbonamide blowing agent in a plasticized polyvinyl chloride matrix

1989 ◽  
Vol 31 (9) ◽  
pp. 2102-2107
Author(s):  
E.I. Tanicheva ◽  
V.M. Gol'dberg ◽  
D.N. Dikerman ◽  
N.G. Paverman
Keyword(s):  
Polyvinyl Chloride ◽  
Thermal Decay ◽  
Blowing Agent ◽  
Chloride Matrix ◽  
Kinetic Features

scholarly journals Fabrication of a Cu(II)-Selective Electrode in the Polyvinyl Chloride Matrix Utilizing Mechanochemically Synthesized Rhodamine 6g as an Ionophore

ACS Omega ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 16230-16237 ◽  
Author(s):  
Anirban Paul ◽  
Ratish R. Nair ◽  
Pabitra B. Chatterjee ◽  
Divesh N. Srivastava
Keyword(s):  
Polyvinyl Chloride ◽  
Rhodamine 6G ◽  
Selective Electrode ◽  
Chloride Matrix

Influence of non-metallic parts of waste printed circuit boards on the properties of plasticised polyvinyl chloride recycled from the waste wire

2019 ◽  
Vol 37 (6) ◽  
pp. 569-577 ◽  
Author(s):  
Rajesha K Das ◽  
Omdeo K Gohatre ◽  
Manoranjan Biswal ◽  
Smita Mohanty ◽  
SK Nayak
Keyword(s):  
Thermal Properties ◽  
Polyvinyl Chloride ◽  
Printed Circuit Boards ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards ◽  
Metallic Parts ◽  
Chloride Matrix

Extreme complexity in the range of metallic and non-metallic parts present in waste printed circuit boards leads to incineration for collecting valuable metals. The non-metallic parts of the printed circuit board can be used effectively without affecting the environment. In this study, the non-metallic parts of the printed circuit board, which is made up by cross-linked resin and fibre, was used as a filler in recycled plasticised polyvinyl chloride collected from waste wires and cables. The properties of the plasticised polyvinyl chloride matrix and plasticised polyvinyl chloride–non-metallic parts of printed circuit board composite were compared with each other by means of mechanical properties and thermal properties. Both mechanical and thermal properties results indicated that incorporation of non-metallic parts of printed circuit board significantly improved the hardness, stiffness, abrasion resistance and thermal stability of plasticised polyvinyl chloride–non-metallic parts of printed circuit board composite; however, the tensile strength of the composite material is not improved because of poor adhesion between the plasticised polyvinyl chloride matrix and non-metallic parts of printed circuit board filler. The poor chemical interaction is also observed from Fourier transform infrared spectroscopy results. This plasticised polyvinyl chloride–non-metallic parts of printed circuit board composite can reduce the leaching of a hazardous element from the printed circuit board with effective utilisation of plastics fraction from waste wires and cables.

Thermodynamics of deformation of composites with polyvinyl chloride matrix

1984 ◽  
Vol 19 (4) ◽  
pp. 436-440
Author(s):  
Yu. K. Godovskii ◽  
N. P. Bessonova ◽  
V. V. Guzeev
Keyword(s):  
Polyvinyl Chloride ◽  
Thermodynamics Of Deformation ◽  
Chloride Matrix
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