党帅营. Research and characterization of ethylene-propylene rubber modified by in-situ sol-gel method[J]. CIESC Journal, 2012, (7): 2266-2270.DOI: 10.3969/j.issn.0438-1157.2012.07.040.
Ethylene-propylene diene monomer rubber-g-γ-methacryloxypropyltrimethoxysilane (EPDM-g-KH570)/SiO2 nanocomposites were prepared with the in-situ sol-gel method.Firstly
the EPDM-g-KH570 was prepared by co-irradiation.Then the graft product was soaked into tetraethylorthosilicate (TEOS).Finally
the swollen material was put into butylamine solution to catalyze the sol-gel reaction of the precursor TEOS.The influences of different solvents and concentrations of butylamine on sol-gel reaction of TEOS and the particle size of the silica obtained were studied.The morphology and microstructures of EPDM-g-KH570/SiO2 hybrid were characterized by FT-IR and SEM.The results showed that the swelling of TEOS and the equilibrium conversion of TEOS were improved significantly by grafted KH570. Compared to the ungrafted EPDM
SiO2 average diameters were smaller and had a good dispersion in the grafted EPDM.