Synthesis and Properties of High-oil Absorption Resin Modified with Organic Bentonite

Cetyl-trimethyl ammonium bromide(CTAB) was used as a surface modifier to prepare hydrophobic organic bentonite. Then hexadecyl methacrylate was used to synthesize oil-absorptive resin with organic bentonite. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy(SEM) were used to characterize the samples. The results show that the layer spacing of bentonite increases from 1. 12 nm to 1. 87 nm. When the concentrations(mass ratio to the monomer, hexadecyl methacrylate) of divinylbenzene(DVB), benzoyl peroxide(BPO), polyvinyl alcohol(PVA) and organic bentonite were 1. 4%, 1. 2%, 0. 8% and 0. 2%, respectively, the oil absorbency of the resin could reach 16. 3 g/g.