Evaluation of Commercially Available PFOA-free Repellent Finishes
| dc.contributor.advisor | Dr. Kristin Thoney, Committee Member | en_US |
| dc.contributor.advisor | Dr. Henry Boyter, Committee Member | en_US |
| dc.contributor.advisor | Dr. Brent Smith, Committee Co-Chair | en_US |
| dc.contributor.advisor | Dr. Keith Beck, Committee Co-Chair | en_US |
| dc.contributor.author | Lindemann, Craig Eric | en_US |
| dc.date.accessioned | 2010-04-02T18:02:27Z | |
| dc.date.available | 2010-04-02T18:02:27Z | |
| dc.date.issued | 2008-04-26 | en_US |
| dc.degree.discipline | Textile Chemistry | en_US |
| dc.degree.level | thesis | en_US |
| dc.degree.name | MS | en_US |
| dc.description.abstract | Due to recent scrutiny of perfluorooctainoic acid (PFOA)-containing fluorochemical (FC) repellent finishes, research was conducted to evaluate the performance of commercially available alternative to such products. Such products have been shown to be environmentally persistent and potentially hazardous. A list of available finishes was compiled and a number of products were selected for evaluation. Finishes were applied using a pad-dry-cure process, and their performance was evaluated using industry-approved, standard test methods for oil and water repellency. Finishes were applied to six fabric substrates, with end uses in the apparel, home furnishings, and automotive industries. Results of the work indicate that none of the commercially available products tested performed at the same level as the traditional, PFOA-containing products. Novel, short-chain FCs showed the highest level of performance among the alternatives tested. These were the only products which were able to provide oil repellency. Silicone and hydrocarbon wax products were also evaluated and showed varying levels of performance. Short-term and long-term durability to home laundering of the finishes were evaluated. Hydrocarbon wax products showed the poorest durability of the finish types tested. None of the alternative products tested were found to have the same level of durability as the traditional FC finishes. Influence of isocyanate and melamine-formaldehyde crosslinking resins was found to be fabric specific, showing significant benefit on cotton substrates. | en_US |
| dc.identifier.other | etd-03202007-150222 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/1240 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dis sertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.subject | PFOA | en_US |
| dc.subject | perfluorooctanoic acid | en_US |
| dc.subject | textiles | en_US |
| dc.subject | Repellent finishes | en_US |
| dc.title | Evaluation of Commercially Available PFOA-free Repellent Finishes | en_US |
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