Beeswax emulsions and microcapsules for hydrophobic modification of cellulose fiber networks

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dc.contributor.advisorXiao, Huining
dc.contributor.authorXu, Ji Xiao
dc.date.accessioned2023-03-01T16:19:10Z
dc.date.available2023-03-01T16:19:10Z
dc.date.issued2012
dc.date.updated2020-07-28T00:00:00Z
dc.description.abstractVarious beeswax emulsions and beeswax-based microcapsules were developed in an attempt to reduce the water vapor transmission rate (WVTR) of cellulose fiber networks of paper products which are of great importance for green-based packaging materials. Four different systems were established and investigated: the block polymer (PE-b-PEG) stabilized beeswax emulsion, cationic starch-stabilized beeswax emulsion, nanobentonite-stabilized beeswax emulsion, and starch microcapsules loaded with beeswax. Each emulsion system or latex was applied to paper handsheets via wet-end addition, surface coating or the combination of wet-end addition and coating. The resulting paper products were well characterized with particular attention paid to WVTR measurements. According to the ASTM E-96, a wet-cup method was developed to quantify the WVTR values at the condition of 38°C and 90% relative humidity (RH). The results indicated that the hydrophobic modification of fiber networks increased the hydrophobicity of paper substantially and reduced the WVTR by 70%. The combination of wet-end addition and surface coating creates the synergy in lowering WVTR.
dc.description.copyright©Ji Xiao Xu, 2012
dc.description.noteScanned from archival print submission.
dc.formattext/xml
dc.format.extentix, 124 pages
dc.format.mediumelectronic
dc.identifier.oclc(OCoLC)1341997985en
dc.identifier.otherThesis 9088
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/13483
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineChemical Engineering
dc.subject.lcshBeeswax industry.en
dc.subject.lcshArtificial cells.en
dc.subject.lcshWater vapor transport.en
dc.subject.lcshEmulsions.en
dc.titleBeeswax emulsions and microcapsules for hydrophobic modification of cellulose fiber networks
dc.typemaster thesis
thesis.degree.disciplineChemical Engineering
thesis.degree.fullnameMaster of Science in Engineering
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.E.

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