Polyvinyl Chloride (PVC), Chlorinated Polyethylene (CPE), Chlorinated Polyvinyl Chloride (CPVC), Chlorosulfonated Polyethylene (CSPE), Polychloroprene Rubber (CR)—Chemistry, Applications and Ecological Impacts—I

Abstract The thermoxidative aging behavior of chlorosulfonated polyethylene (CSM) and chlorinated polyethylene (CPE) vulcanizates has been investigated. Aging rates were determined by measuring isothermal oxidative induction times in a differential scanning calorimeter. Aging rates were also determined by measuring the decrease in the critical tearing energy of compounds as a function of aging time and temperature. Rate constants determined from induction time and tearing energy experiments displayed typical Arrhenius behavior. Below 240°C, rate constants from both experiments fell on the same line, suggesting that both experiments probe the same reaction. Activation energies for degradation of CSM and CPE were 88 and 108 kJ/mol respectively. Above 240°C, the mechanism of degradation changes with a corresponding change in activation energy to 190 and 232 kJ/mol for CSM and CPE, respectively. In the unaged state, the critical tearing energy of the carbon black-filled CPE compound is 50% higher than that of the carbon black-filled CSM compound. The rate of aging of CSM compound is approximately twice that of the CPE compound at equal temperatures. Decreases in tearing energy were attributed to additional crosslinking of the elastomer network. Combining oxidative induction times and critical tearing energy measurements may offer significant advantages in streamlining accelerated testing of elastomeric materials.

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Mechanical, Water-swelling, and Morphological Properties of Water-swellable Thermoplastic Vulcanizates Based on Polyvinyl Chloride/Crosslinked Sodium Polyacrylate/Chlorinated Polyethylene Blends

Journal of Macromolecular Science Part B ◽

10.1080/00222348.2013.764202 ◽

2013 ◽

Vol 52 (9) ◽

pp. 1322-1340 ◽

Cited By ~ 3

Author(s):

Fengzheng Lang ◽

Shuai Li ◽

Fanglin Du ◽

Zhaobo Wang

Keyword(s):

Polyvinyl Chloride ◽

Morphological Properties ◽

Sodium Polyacrylate ◽

Chlorinated Polyethylene ◽

Polyethylene Blends ◽

Thermoplastic Vulcanizates ◽

Water Swelling

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Effect of Blending Modification on Tensile Performance of CPE/PVC

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.284-286.1732 ◽

2011 ◽

Vol 284-286 ◽

pp. 1732-1735

Author(s):

Xiao Ling Xie ◽

Wen Hai Li ◽

Ying Hui Wei

Keyword(s):

Tensile Strength ◽

Polyvinyl Chloride ◽

Hot Pressing ◽

Mechanical Performance ◽

Dioctyl Phthalate ◽

Test Results ◽

Pressing Temperature ◽

Chlorinated Polyethylene ◽

Breaking Elongation ◽

Tensile Performance

The samples were modified by using chlorinated polyethylene (CPE) to increase the toughness and using dioctyl phthalate (DOP) to increase the plasticity. The tensile strength and breaking elongation of the samples were studied by changing the chlorinated polyethylene (CPE) and dioctyl phthalate (DOP) contents and the hot-pressing temperature. It was shown by the test results that, with the increase of chlorinated polyethylene (CPE) and dioctyl phthalate (DOP) contents, the tensile strength of the samples was decreased while the breaking elongation was increased. By increasing the hot-pressing temperature, the blending effect between polyvinyl chloride (PVC) and chlorinated polyethylene (CPE) as well as the mechanical performance of the samples were increased, however, over-high hot-pressing temperature would result in plasticizer precipitation.

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