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The preparation of microcrystalline cellulose–nanoSiO 2 hybrid materials and their application in tire tread compounds
Author(s) -
Sun Jutao,
Liu Xiaoling,
Liang Yunhao,
Wang Lili,
Liu Yao
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44796
Subject(s) - materials science , thermogravimetric analysis , natural rubber , microcrystalline cellulose , composite material , scanning electron microscope , tread , dynamic mechanical analysis , chemical engineering , cellulose , polymer , engineering
Microcrystalline cellulose (MCC) was hybridized with nano‐SiO 2 to improve its interaction with a rubber matrix. The hybrids (MCC–SiO 2 ) were prepared with the “microreactor” and “sol–gel” technologies, using MCC as the carrier and tetraethoxysilane as the precursor. The structure and morphology of the hybrids were studied by infrared spectrometry, thermogravimetric analysis, and scanning electron microscopy. The results showed that the nano‐SiO 2 had been loaded successfully on the surface of the MCC with a loading ratio of approximately 30%. The nano‐SiO 2 can take on the morphologies of particles, tubes, or rods by controlling the size of the “microreactor”. The hybrids were then used in silica/SSBR compounds to replace part of the silica, and their effects on the physio‐mechanical and dynamic properties were discussed. The results showed that the vulcanizates with the hybrids had improved physio‐mechanical and dynamic properties. The vulcanizates of MCC–SiO 2 also had a higher wet‐skid resistance and a lower rolling resistance than did the silica vulcanizates when they were used in tire tread compounds. The SEM photos showed that the interfacial adhesion between the MCC and rubber was improved. The size of the MCC hybrids was also in situ decreased during the processing of the rubber compounds. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44796.