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6648376 
Journal Article 
Correlation between properties and microstructure of pitch fluorides 
Zhang Jin-cai; Shi Jin-li; Guo Xue-min; Liu Lang; Guo Quan-gui; , 
2010 
Unk 
Xinxing Tancailiao
ISSN: 1007-8827 
ELSEVIER SCIENCE BV 
AMSTERDAM 
205-210 
WOS:000279421300008 
Three different pitch fluorides were prepared by the reaction of pitch grains with a gas mixture containing fluorine and nitrogen in a rotating nickel reactor. The raw pitches are mesophase microbeads, mesophase pitch and isotropic pitch. The surface energy, contact angle with water, the stability in acid or alkali media and weight loss upon heating were investigated. Results showed that the fluorinated reaction rate of the raw pitches and the weight loss rate of the pitch fluorides were quite different, which may be caused by the difference in the molecular weight distributions and the compositions of the raw pitches. However, the surface energies of the pitch fluorides were all low and the resistance of the pitch fluorides to acid or alkali was similar. Keywords: Pitch fluorides; Property; Structure of molecule