The development of creosote macroemulsions to be used for wood preservation

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dc.contributor.advisorJackson, Graham Ellisen_ZA
dc.contributor.advisorLouwrens, Herman Ben_ZA
dc.contributor.authorNzimande, Aubrey Khethukuthulaen_ZA
dc.date.accessioned2016-02-08T07:11:58Z
dc.date.available2016-02-08T07:11:58Z
dc.date.issued1999en_ZA
dc.descriptionBibliography: pages 62-67.en_ZA
dc.description.abstractCreosote 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.identifier.apacitationNzimande, 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/11427/16856en_ZA
dc.identifier.chicagocitationNzimande, 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/11427/16856en_ZA
dc.identifier.citationNzimande, A. 1999. The development of creosote macroemulsions to be used for wood preservation. University of Cape Town.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
dc.identifier.urihttp://hdl.handle.net/11427/16856
dc.identifier.vancouvercitationNzimande 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/11427/16856en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemistryen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemistryen_ZA
dc.titleThe development of creosote macroemulsions to be used for wood preservationen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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