Beeswax emulsions and microcapsules for hydrophobic modification of cellulose fiber networks
| dc.contributor.advisor | Xiao, Huining | |
| dc.contributor.author | Xu, Ji Xiao | |
| dc.date.accessioned | 2023-03-01T16:19:10Z | |
| dc.date.available | 2023-03-01T16:19:10Z | |
| dc.date.issued | 2012 | |
| dc.date.updated | 2020-07-28T00:00:00Z | |
| dc.description.abstract | Various 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.note | Scanned from archival print submission. | |
| dc.format | text/xml | |
| dc.format.extent | ix, 124 pages | |
| dc.format.medium | electronic | |
| dc.identifier.other | Thesis 9088 | |
| dc.identifier.uri | https://unbscholar.lib.unb.ca/handle/1882/13483 | |
| dc.language.iso | en_CA | |
| dc.publisher | University of New Brunswick | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.subject.discipline | Chemical Engineering | |
| dc.title | Beeswax emulsions and microcapsules for hydrophobic modification of cellulose fiber networks | |
| dc.type | master thesis | |
| thesis.degree.discipline | Chemical Engineering | |
| thesis.degree.fullname | Master of Science in Engineering | |
| thesis.degree.grantor | University of New Brunswick | |
| thesis.degree.level | masters | |
| thesis.degree.name | M.Sc.E. |
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