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Improvement of interfacial interaction, dispersion, and properties of chlorosulfonated polyethylene/sio 2 nanocomposites using CSPE‐ g ‐Sio 2 nanoparticles synthesized under ultrasonics
Author(s) -
Bai Xuefeng,
He Xuelian,
Zhang Jun,
Zhu Xiao,
Zhang Haiyang,
Cheng Ruihua,
Liu Boping
Publication year - 2012
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22203
Subject(s) - materials science , composite material , nanocomposite , nanoparticle , fourier transform infrared spectroscopy , thermal stability , elastomer , polyethylene , thermogravimetric analysis , dispersion (optics) , chemical engineering , nanotechnology , physics , optics , engineering
Chlorosulfonated polyethylene (CSPE) is a widely used elastomer because of the resistance to gases and aggressive chemicals, fire‐retarding, and electric insulating properties. Silica nanoparticles were usually introduced into the elastomer to improve its critical properties. However, there were some problems of strong aggregation and poor dispersion of nanoparticles in the nanocomposites. In this work, an efficient approach of grafting matrix CSPE onto silica surface was proposed to solve the problems. CPSE‐ g ‐SiO 2 nanoparticles were prepared via an in situ radical reaction between Cl in CSPE and SiOH on silica surface under ultrasonics. The successful chemical graft reaction was confirmed using Fourier transform infrared, ultraviolet–visible spectroscopy, 1 H‐NMR, and X‐ray photoelectron spectroscopy. Thermogravimetric analysis indicated that the grafting amount of CSPE was 4.68 wt%. Grafting CSPE onto silica surface significantly improved the dispersion of CSPE‐ g ‐SiO 2 nanoparticles in CSPE matrix and the interfacial interaction. Therefore, the mechanical, thermal stability, damping capacity, and rheology properties of CSPE/CSPE‐ g ‐SiO 2 nanocomposites were improved. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers