Characterization and preparation of bagasse dust suppressant by microwave induced polymerization
- Received Date: 12/06/2016
- Accepted Date: 10/04/2016
- Available Online: 06/07/2017
-
Key words:
- bagasse /
- orthogonal analysis /
- microwave induced grafting /
- dust suppressant /
- characterizatio
Abstract: Using polyvinyl alcohol as a monomer, ammonium persulfate as an initiator, Al(OH)3 as a crosslinking agent, and glycerol as a plasticizer, polyvinyl alcohol grafted cellulosic bagasse dust suppressant was synthesized by microwave-induced grafting polymerization.By an orthogonal experiment and range analysis, the monomer mass, reaction temperature, and crosslinking agent dosage were determined to be the main factors affecting the viscosity and water-retaining ability.The morphology and structure of the grafted polymer were determined using Fourier transform infrared spectroscopy and scanning electron microscopy.The results indicate that the polymer surface is smooth, with a dense structure, and that the graft reaction is successful.Compared to commercial products, self-made bagasse dust suppressant (viscosity:23.95 mm2·s-1, retention time of moisture content above 4%:55.13 h) was economical and showed good technical performance in terms of permeability, thermostability, resistance to rain scouring, wind, freeze, etc., which make it a good market prospect.