On factors affecting surface free energy of carbon black for reinforcing rubber
Author:
Zhang Shangyong1, Zhong Ruipeng1, Hong Ruoyu1, Hui David2
Affiliation:
1. College of Chemical Engineering, Fuzhou University . Fuzhou , China , 350108 2. Department of Mechanical Engineering, University of New Orleans , New Orleans , LA 70148 , United States of America
Abstract
Abstract
The surface activity of carbon black (CB) is an important factor affecting the reinforcement of rubber. The quantitative determination of the surface activity (surface free energy) of CB is of great significance. A simplified formula is obtained to determine the free energy of CB surface through theoretical analysis and mathematical derivation. The surface free energy for four kinds of industrial CBs were measured by inverse gas chromatography, and the influential factors were studied. The results showed that the aging time of the chromatographic column plays an important role in accurate measurement of the surface free energy of CB, in comparison with the influences from the inlet pressure and carrier gas flow rate of the chromatographic column filled with CB. Several kinds of industrial CB were treated at high temperature, and the surface free energy of CB had a significant increase. With the increase of surface free energy, the maximum torque was decreased significantly, the elongation at break tended to increase, the heat generation of vulcanizates was increased, and the wear resistance was decreased.
Publisher
Walter de Gruyter GmbH
Subject
Surfaces, Coatings and Films,Process Chemistry and Technology,Energy Engineering and Power Technology,Biomaterials,Medicine (miscellaneous),Biotechnology
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