Crosslinking of cotton cellulose by lignin-isocyanate copolymer
Ethoxyl 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 diisoc...
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ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-421582021-05-22T05:27:18Z Crosslinking of cotton cellulose by lignin-isocyanate copolymer Venkataraman, Srinivasan Clothing and Textiles LD5655.V855 1990.V475 Cotton fabrics -- Research Cotton finishing -- Research Ethoxyl 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. Master of Science 2014-03-14T21:34:14Z 2014-03-14T21:34:14Z 1990 2009-04-18 2009-04-18 2009-04-18 Thesis Text etd-04182009-041431 http://hdl.handle.net/10919/42158 http://scholar.lib.vt.edu/theses/available/etd-04182009-041431/ en OCLC# 22293841 LD5655.V855_1990.V475.pdf In Copyright http://rightsstatements.org/vocab/InC/1.0/ viii, 121 leaves BTD application/pdf application/pdf Virginia Tech |
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LD5655.V855 1990.V475 Cotton fabrics -- Research Cotton finishing -- Research |
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LD5655.V855 1990.V475 Cotton fabrics -- Research Cotton finishing -- Research Venkataraman, Srinivasan Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
description |
Ethoxyl 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. === Master of Science |
author2 |
Clothing and Textiles |
author_facet |
Clothing and Textiles Venkataraman, Srinivasan |
author |
Venkataraman, Srinivasan |
author_sort |
Venkataraman, Srinivasan |
title |
Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
title_short |
Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
title_full |
Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
title_fullStr |
Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
title_full_unstemmed |
Crosslinking of cotton cellulose by lignin-isocyanate copolymer |
title_sort |
crosslinking of cotton cellulose by lignin-isocyanate copolymer |
publisher |
Virginia Tech |
publishDate |
2014 |
url |
http://hdl.handle.net/10919/42158 http://scholar.lib.vt.edu/theses/available/etd-04182009-041431/ |
work_keys_str_mv |
AT venkataramansrinivasan crosslinkingofcottoncellulosebyligninisocyanatecopolymer |
_version_ |
1719405501708500992 |