Enhancing both the mechanical and chemical properties of paper sheet by graft co-polymerization with acrylonitrile/methyl methacrylate
| Autor: | S.M. Sayyh, E.H.M. Kamal, H.M. Abd El Salam |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
lcsh:R5-920
Chemical resistance Materials science Acrylonitrile Characterization Pharmaceutical Science Medicine (miscellaneous) Activation energy Agricultural and Biological Sciences (miscellaneous) Reaction rate chemistry.chemical_compound Paper sheet Monomer Methyl methacrylate chemistry Polymerization Polymer chemistry Copolymer lcsh:Q lcsh:Medicine (General) lcsh:Science Graft copolymerization |
| Zdroj: | Beni-Suef University Journal of Basic and Applied Sciences, Vol 3, Iss 3, Pp 193-202 (2014) |
| ISSN: | 2314-8535 |
| DOI: | 10.1016/j.bjbas.2014.10.004 |
| Popis: | The chemical graft copolymerization reaction of acrylonitrile (AN) and methyl methacrylate (MMA) binary mixture onto paper sheet was performed. The effect of initiator concentration, monomer concentration and temperature on the reaction rate was studied. The reaction rate equation of the graft copolymerization reaction is found to be RP = K2 [Initiator]0.795[Monomer]2.007. The apparent activation energy (Ea) of the copolymerization reaction is found to be 75.01 kJ/mol. The infrared characteristic absorption bands for cellulosic paper structure and the paper gr-AN-MMA are investigated. Tensile break load, porosity and burst strength were measured for the grafted and pure paper sheet. It was found that the mechanical properties are improved by grafting copolymerization. The chemical resistance of the graft product against a strong acid a strong alkali, polar and nonpolar solvents was investigated. It was found that the resistance to these chemicals is enhanced by grafting. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|