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Dynamic properties of CPE/AO‐80 with CB

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Aggregates of carbon black (CB) in a polymer matrix have a tendency to form a CB network. The dynamic mechanical properties of binary systems of chlorinated polyethylene (CPE) and CB or 3,9‐bis{1,1‐dimethyl‐2[β‐(3‐tert‐butyl‐4‐hydroxy‐5‐methylphenyl)propionyloxy]ethyl}‐2,4,8,10‐tetraoxaspiro[5,5]‐undecane (AO‐80) and their ternary systems were investigated. It was found that the dynamic mechanical properties of those systems depend on the colloidal properties, surface oxides, and surface modification of CB. For binary systems of CPE and CB, oxidized CB gives a high modulus at low strain amplitude and a large Payne effect compared with untreated CB. In contrast, the reverse effect was observed for their ternary systems. Consequently, a good micro‐dispersion is obtainable by surface modification due to physical adsorption of AO‐80 on oxidized CB particles via hydrogen bonds.

© 2003 Society of Chemical Industry
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Keywords: carbon black; chlorinated polyethylene; dispersion; dynamic properties; hindered phenol

Document Type: Research Article

Affiliations: Institute of Materials Science and Technology, East China University of Science and Technology, 130 Meilong-Lu, Shanghai, 200237, People's Republic of China

Publication date: August 1, 2003

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