Thermal decomposition study of polyvinyl chloride in the presence of commercially available oxides catalysts. Issue 6 (23rd October 2017)

• Record Type: Journal Article
• Authors: Nisar, Jan; Khan, Muhammad Sufaid; Iqbal, Munawar; Shah, Afzal; Ali, Ghulam; Sayed, Murtaza; Khan, Rafaqat Ali; Shah, Faheem; Mahmood, Tariq
• Is Part Of: Advances in polymer technology. Volume 37:Issue 6(2018)
• Page Start: 2336
• Page End: 2343
• Publication Date: 2017-10-23
• Subjects: catalytic thermal degradation -- number of acidic sites -- polyvinyl chloride -- pore size -- reduction in maximum degradation temperature -- surface area; Plastics -- Periodicals; Polymers -- Periodicals; 668.9
• DOI: 10.1002/adv.21909
• Languages: English
• ISSNs: 0730-6679

Abstract

Abstract: The pyrolysis behavior of polyvinyl chloride (PVC) in the presence of commercially available oxides catalysts was investigated using thermogravimetry. The pyrolysis proceeded under a heating rate of 5°C/min in the temperature range of 200–650°C. The thermogravimetric properties in terms of reduction in maximum degradation temperature and percent conversion were studied. The silica gel mesoporous catalyst, with a greater pore size and surface area, was found to be the most active materials in terms of reduction in maximum degradation temperature and increase in percent conversion. The alumina acidic, silica ppt, and alumina neutral catalysts also showed good results; however, their effects were less pronounced as compared to silica gel. The effects of these different catalysts show that surface area, pore size, and number of acidic sites are found to be the major factors for the energy efficient degradation of polymers.