caa a22 4500 467886660 CHVBK 20180406152736.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10924-006-0004-9 doi (NATIONALLICENCE)springer-10.1007/s10924-006-0004-9 Contribution to the Study of Fungal Attack on Some Plasticized Vinyl Formulations [Elektronische Daten] [A. El-Aghoury, R. Vasudeva, D. Banu, M. Elektorowicz, D. Feldman] The objective of this study was to develop new vinyl flooring formulations with increased resistance to fungi and microorganisms attack, by using plasticizers having a chemical composition different from that of common di-ethylhexyl phthalate (DOP). It is suspected that during the vinyl flooring life service, the attack of fungi and microorganisms leads to the degradation of DOP and the release of some volatile organic compounds (VOC). For this reason the new materials were formulated with plasticizers having chemical composition different of that of DOP i.e.: diethyleneglycol dibenzoate (2-45), tricresyl phosphate (Lindol) and phenol alkylsulphonic ester (Mesamoll). For the same reason in the new flooring formulations the vinyl polymer, vinyl chloride-vinyl acetate copolymer (VC-VAc), was partially replaced with lignin (L) a natural polymer and major component of wood and vascular plants. Besides its other functions in wood, L imparts resistance to the most microorganisms attack. An organosolv lignin Alcell lignin (AL) was utilized as partial replacement of VC-VAc copolymer. The influence of the new plasticizers, as well as the influence of the partial replacement of VC-VAc copolymer with L on the resistance of the new formulations to fungal attack was evaluated following a standard procedure given in ASTM G 21-2002 "Determining Resistance of Synthetic Polymeric Materials to Fungi”. The evaluation has been undertaken for controls (formulated without AL) and blends (formulated with 20 parts AL) specimens. Test specimens were inoculated with a mixture of five fungi. Following 28days of incubation at 28°C and 95% relative humidity, the specimens were examinated visual and under the microscope and rated for fungal growth. Weight loss, changes in mechanical properties and changes in glass transition temperature due to the effect of biodeterioration were also determined. Although each plasticizer has a specific resistance to hydrolysis due to differences among ester groups, the visible effects of fungal attack, in formulations without AL, is similar for all plasticized controls, with the exception of formulations incorporating diethyleneglycol dibenzoate (2-45) in which a higher degree of biodegradation was always present. Based on the weight loss of specimens formulated without AL, their resistance to fungal attack can be rated as follows: $$\hbox{Lindol} > \hbox{Mesamoll} \ge \hbox{DOP}> 2-45$$ . The same rating is applicable for blend specimens. The results have demonstrated that each particular AL-plasticizer-additives formulation has its specific mechanism of biodegradation. Springer Science+Business Media, Inc., 2006 Fungal resistance nationallicence Plasticized VC-VAc copolymer nationallicence Plasticized VC-VAc copolymer-lignin blends nationallicence Vinyl flooring biodegradation nationallicence El-Aghoury A. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut Vasudeva R. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut Banu D. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut Elektorowicz M. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut Feldman D. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 135-147 1566-2543 14:2<135 2006 14 10924 https://doi.org/10.1007/s10924-006-0004-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-006-0004-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- El-Aghoury A. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Vasudeva R. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Banu D. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Elektorowicz M. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Feldman D. Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 135-147 1566-2543 14:2<135 2006 14 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer