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The rheological, thermostable, and mechanical properties of polypropylene/fullerene C 60 nanocomposites with improved interfacial interaction
Author(s) -
Wan Dong,
Wang Yujie,
Wen Xin,
Qiu Jian,
Jiang Zhiwei,
Tan Haiying,
Tang Tao
Publication year - 2012
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23091
Subject(s) - nanocomposite , materials science , polypropylene , thermogravimetric analysis , flexural strength , thermal stability , ultimate tensile strength , composite material , peroxide , flexural modulus , izod impact strength test , thermal decomposition , rheology , dynamic mechanical analysis , polymer chemistry , polymer , chemical engineering , organic chemistry , chemistry , engineering
Polypropylene (PP)/C 60 nanocomposites with improved interfacial interaction were prepared via in situ melt radical reaction. It was found that the relaxation time of PP/C 60 nanocomposites containing peroxide increased due to the reaction between C 60 and PP macroradicals and the formation of long chain branched or crosslinking structure. Thermogravimetric analysis (TGA) results showed that the thermal stability of PP/C 60 nanocomposites was enhanced. The initial decomposition temperatures and activation energy of PP/C 60 nancomposites were strongly influenced by the content of unreacted C 60 . Because of the improved interfacial interaction, PP/C 60 nanocomposites containing peroxide showed obvious increase in tensile strength, Young' modulus, flexural strength, flexural modulus, and impact strength, compared to PP/C 60 nanocomposites (without peroxide) containing the same content of C 60 . POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers