Crosslinking of cotton cellulose by lignin-isocyanate copolymer

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dc.contributor.authorVenkataraman, Srinivasanen
dc.contributor.departmentClothing and Textilesen
dc.date.accessioned2014-03-14T21:34:14Zen
dc.date.adate2009-04-18en
dc.date.available2014-03-14T21:34:14Zen
dc.date.issued1990en
dc.date.rdate2009-04-18en
dc.date.sdate2009-04-18en
dc.description.abstractEthoxyl capped hydroxypropyl lignin (IIP-EL) was used as a finishing agent for cotton fabric to impart the property of crease recovery to the fabric. The synthesis of the finish involved two steps: Synthesis of phenyl N( 3 - cyanato 4 methyl phenyl) carbamate by reacting phenol and Tolylene diisocyanate (TDI) in a 1:1 mole ratio. Reaction of the above prepolymer with the modified lignin (HP- EL) using a mole ratio of 1:20 to form a lignin carbamate. The lignin carbamate finish was crosslinked to cotton cellulose fabric through carbamoyl linkages when the fabric was cured. There is emperical evidence for the chemical crosslinking of cellulose with lignin. The effects of the finish on the fabric physical properties like durable press rating, dimensional stability, tensile strength, abrasion resistance, warp and weft recovery angle were investigated. Analysis of the results showed improvement in the durable press rating and excellent retention of tensile strength and abrasion resistance. The results of warp and weft recovery angle tests which relate to durable press properties, suggest the need to further investigate the possibility of using a different chain-extended lignin to achieve improved results.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 121 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-04182009-041431en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04182009-041431/en
dc.identifier.urihttp://hdl.handle.net/10919/42158en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.V475.pdfen
dc.relation.isformatofOCLC# 22293841en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.V475en
dc.subject.lcshCotton fabrics -- Researchen
dc.subject.lcshCotton finishing -- Researchen
dc.titleCrosslinking of cotton cellulose by lignin-isocyanate copolymeren
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineClothing and Textilesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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