Striking influence of Fe2O3 on the “catalytic carbonization” of chlorinated poly(vinyl chloride) into carbon microspheres with high performance in the photo-degradation of Congo red

2013 ◽  
Vol 1 (17) ◽  
pp. 5247 ◽  
Author(s):  
Jiang Gong ◽  
Kun Yao ◽  
Jie Liu ◽  
Zhiwei Jiang ◽  
Xuecheng Chen ◽  
...  
Keyword(s):  
Vinyl Chloride ◽  
Congo Red ◽  
High Performance ◽  
Carbon Microspheres ◽  
Photo Degradation ◽  
Poly Vinyl Chloride

Characterization of Thermal Reversible Cross-Linking Agents for Flexible Poly(vinyl chloride)

2014 ◽  
Vol 900 ◽  
pp. 3-6 ◽  
Author(s):  
Jing Wang ◽  
Wei Fang ◽  
Yuan Yuan ◽  
Xiao Ming Liu
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Congo Red ◽  
Cross Linking ◽  
Gel Content ◽  
Ethyl Mercaptan ◽  
Poly Vinyl Chloride ◽  
The Cross ◽  
Thermal Stability Of

In order to improve thermal stability of Poly (Vinyl Chloride), a kind of thermal reversible cross-linking agents, the end cyclopentadienyl ethanethiol salts, sodium cyclopentadienyl ethyl mercaptan (CPD-C2H4SNa) was synthesized in this paper. The DSC results proved that the prepared CPD-C2H4SNa has obvious thermal reversible characteristics and the thermal reversible temperature was at 177 °C. The effects of cross-linking agent amount, cross-linking reactive time and temperature on flexible PVC compounds were evaluated through gel content testing. It was showed that the cross-linking agent with 3 Phr is optimum for PVC compounds. Moreover, both the cross-linking reactive time and temperature has effects on gel content of PVC compounds. The gel content of CPD-C2H4SNa cross-linked PVC compounds reaches maximum at 76% for 20 min at 160 °C.The static thermal stability of flexible PVC was measured according to congo red method. The results showed that the thermal stability of PVC compounds was enhanced with increasing cross-linking agent amount.

One-pot synthesis of core/shell Co@C spheres by catalytic carbonization of mixed plastics and their application in the photo-degradation of Congo red

2014 ◽  
Vol 2 (20) ◽  
pp. 7461-7470 ◽  
Author(s):  
Jiang Gong ◽  
Jie Liu ◽  
Xuecheng Chen ◽  
Zhiwei Jiang ◽  
Xin Wen ◽  
...  
Keyword(s):  
Congo Red ◽  
High Performance ◽  
Core Shell ◽  
One Pot ◽  
Photo Degradation ◽  
One Pot Synthesis

Co3O4 catalyzed carbonization of plastics into Co@C spheres via a one-pot approach, which shows high performance in photo-degradation of Congo red.

Anthraquinone derivatives as organic stabilizers for rigid poly(vinyl chloride) against photo-degradation

2005 ◽  
Vol 41 (11) ◽  
pp. 2530-2543 ◽  
Author(s):  
Magdy W. Sabaa ◽  
Emad H. Oraby ◽  
Abir S. Abdel Naby ◽  
Riham R. Mohamed
Keyword(s):  
Vinyl Chloride ◽  
Photo Degradation ◽  
Poly Vinyl Chloride ◽  
Anthraquinone Derivatives ◽  
Rigid Poly

Improving the Photostabilization of Poly(vinyl chloride) Using 4-(benzylideneamino)benzenesulfonamide Tin Complex

2022 ◽  
Vol 16 (1) ◽  
pp. 23
Author(s):  
Hassan Ghani ◽  
Emad Yousif ◽  
Mohammed Kadhom ◽  
Waled Abdo Ahmed ◽  
Muhammad Rahimi Yusop ◽  
...  
Keyword(s):  
Weight Loss ◽  
Vinyl Chloride ◽  
Photo Degradation ◽  
Viscosity Change ◽  
Force Microscopy ◽  
Atomic Force ◽  
Poly Vinyl Chloride ◽  
Pvc Film ◽  
Before And After ◽  
The Impact

The photostabilization of poly (vinyl chloride) (PVC) film filled with an organotin complex in its structure was examined and compared with the blank PVC film. The organotin (IV) complex that contains 4-(benzylideneamino) benzenesulfonamide as a ligand was synthesized and applied as a PVC photostabilizer. The impact of the complex on the polymer was assessed by comparing the properties of the films with and without the complex, before and after irradiation, using Fourier transform infrared spectroscopy, weight loss, viscosity change, atomic force microscopy, and field emission scanning electron microscopy (FE-SEM). Results showed that the complex film had lower weight loss, gel content, and molecular weight deterioration than the plain PVC film. Also, surfaces of the complexes-filled films were smoother, less lumpy, and more homogeneous. These findings were obtained via the FE-SEM and light microscope images and confirmed by measuring the roughness factor. The organotin (IV) complex proved its activity in delaying the photo-degradation of PVC by several mechanisms. Ultimately, the Tin complex has effectively protected the PVC film against irradiation. The photostabilization of poly (vinyl chloride) (PVC) film filled with an organotin complex in its structure was examined and compared with the blank PVC film. The organotin (IV) complex that contains 4-(benzylideneamino) benzenesulfonamide as a ligand was synthesized and applied as a PVC photostabilizer. The impact of the complex on the polymer was assessed by comparing the properties of the films with and without the complex, before and after irradiation, using Fourier transform infrared spectroscopy, weight loss, viscosity change, atomic force microscopy, and field emission scanning electron microscopy (FE-SEM). Results showed that the complex film had lower weight loss, gel content, and molecular weight deterioration than the plain PVC film. Also, surfaces of the complexes-filled films were smoother, less lumpy, and more homogeneous. These findings were obtained via the FE-SEM and light microscope images and confirmed by measuring the roughness factor. The organotin (IV) complex proved its activity in delaying the photo-degradation of PVC by several mechanisms. Ultimately, the Tin complex has effectively protected the PVC film against irradiation.

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