The development of creosote macroemulsions to be used for wood preservation

 

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dc.contributor.advisor Jackson, Graham Ellis en_ZA
dc.contributor.advisor Louwrens, Herman B en_ZA
dc.contributor.author Nzimande, Aubrey Khethukuthula en_ZA
dc.date.accessioned 2016-02-08T07:11:58Z
dc.date.available 2016-02-08T07:11:58Z
dc.date.issued 1999 en_ZA
dc.identifier.citation Nzimande, A. 1999. The development of creosote macroemulsions to be used for wood preservation. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/16856
dc.description Bibliography: pages 62-67. en_ZA
dc.description.abstract Creosote treated timber "bleeds" profusely in hot weather and develops tarry, oily surfaces that are difficult to handle and pose a health hazard. The objective of this work is to investigate the possibility of improving the surface condition of the creosote treated timber. The possibility of using creosote macroemulsions for wood impregnation purposes was investigated. Creosote emulsions also present the possibility of improving other creosote characteristics such as penetration and distribution of creosote in wood during treatment. Creosote emulsions were successfully developed by identifying the suitable class of surfactants (anionic}, chemical type of surfactant (unsaturated fatty acids), and type of emulsion (water-in-oil). However, these emulsions could not improve the surface condition of the creosote treated timber. The penetration and distribution characteristics of both the creosote emulsion and unemulsified creosote were satisfactory. Both the creosote emulsion and the unemulsified creosote penetrated the sapwood completely but there was no penetration into the hardwood. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Chemistry en_ZA
dc.title The development of creosote macroemulsions to be used for wood preservation en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Chemistry en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Nzimande, A. K. (1999). <i>The development of creosote macroemulsions to be used for wood preservation</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Chemistry. Retrieved from http://hdl.handle.net/11427/16856 en_ZA
dc.identifier.chicagocitation Nzimande, Aubrey Khethukuthula. <i>"The development of creosote macroemulsions to be used for wood preservation."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Chemistry, 1999. http://hdl.handle.net/11427/16856 en_ZA
dc.identifier.vancouvercitation Nzimande AK. The development of creosote macroemulsions to be used for wood preservation. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Chemistry, 1999 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/16856 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Nzimande, Aubrey Khethukuthula AB - Creosote treated timber "bleeds" profusely in hot weather and develops tarry, oily surfaces that are difficult to handle and pose a health hazard. The objective of this work is to investigate the possibility of improving the surface condition of the creosote treated timber. The possibility of using creosote macroemulsions for wood impregnation purposes was investigated. Creosote emulsions also present the possibility of improving other creosote characteristics such as penetration and distribution of creosote in wood during treatment. Creosote emulsions were successfully developed by identifying the suitable class of surfactants (anionic}, chemical type of surfactant (unsaturated fatty acids), and type of emulsion (water-in-oil). However, these emulsions could not improve the surface condition of the creosote treated timber. The penetration and distribution characteristics of both the creosote emulsion and unemulsified creosote were satisfactory. Both the creosote emulsion and the unemulsified creosote penetrated the sapwood completely but there was no penetration into the hardwood. DA - 1999 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1999 T1 - The development of creosote macroemulsions to be used for wood preservation TI - The development of creosote macroemulsions to be used for wood preservation UR - http://hdl.handle.net/11427/16856 ER - en_ZA


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