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dc.contributorCarrillo Navarrete, Fernando
dc.contributor.authorBinti Mohd Haris, Nur Syafiqah
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2019-11-14T15:29:31Z
dc.date.available2019-11-14T15:29:31Z
dc.date.issued2019-06
dc.identifier.urihttp://hdl.handle.net/2117/172445
dc.description.abstractCellulose fibers were chemically modified by the oxidation of cotton fiber with sodium periodate and subsequent grafting with an amino-terminated hyperbranched polymer. The effect of the influence of the oxidation conditions was evaluated by determining the aldehyde group content, tensile strength, yield loss and Fourier Transform Infrared Spectroscopy (FTIR). In the absence of salt, the oxidized hyperbranched cotton fiber (OHCF) displayed a notable improvement in colour strength compared to the untreated cotton fiber. In order to achieve a more satisfactory result, a low-salt dyeing was carried out. Overall, good fastness properties of the dyed oxidized hyperbranched cotton fibers were obtained that are comparable to the conventional dyeing. The improvement in the measurement of colour strength indicates that the chemical modification of cellulose via periodate oxidation and grafting of the amino-terminated hyperbranched polymer was successfully implemented. It is concluded that amino-terminated hyperbranched polymer can be applied in reactive dyeing on cotton for the lowsalt dyeing auxiliary to improve the substantivity of cellulose towards reactive dyes. Hence, a more environmentally friendly dyeing process was achieved.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsAttribution-NonCommercial 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subjectÀrees temàtiques de la UPC::Enginyeria tèxtil::Fabricació tèxtil::Tintura
dc.subject.lcshCellulose
dc.subject.lcshPolymers -- Testing
dc.subject.lcshDyes and dyeing
dc.subject.otherPeriodate oxidation
dc.subject.otherAmino-terminated hyperbranched polymer
dc.titleStudy of modification of cellulose with hyperbranched polymers
dc.typeBachelor thesis
dc.subject.lemacCel·lulosa -- Proves
dc.subject.lemacPolímers -- Proves
dc.subject.lemacTints i tenyit -- Aspectes ambientals
dc.identifier.slugPRISMA-144047
dc.rights.accessOpen Access
dc.date.updated2019-10-14T09:08:02Z
dc.audience.educationlevelGrau
dc.audience.mediatorEscola Superior d'Enginyeries Industrial, Aeroespacial i Audiovisual de Terrassa
dc.audience.degreeGRAU EN ENGINYERIA QUÍMICA (Pla 2009)


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