Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Highly fluorinated chemicals in functional textiles can be replaced by re-evaluating liquid repellency and end-user requirements
Stockholm University, Sweden.
University of Leeds, UK.
University of Borås, Sweden.
RISE - Research Institutes of Sweden, Material och produktion, IVF.
Visa övriga samt affilieringar
2019 (Engelska)Ingår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 217, s. 134-143Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Ongoing regulation of, and concerns regarding, per- and polyfluoroalkyl substances (also popularly known as “highly fluorinated chemicals”), has driven the textile market to search for sustainable alternative chemistries that can provide similar liquid repellency to per- and polyfluoroalkyl substances in performance textiles. This paper aims to inform the potential substitution of fluorochemicals with more environmentally friendly durable water repellents, taking a case-by-case approach and evaluating protection needs for consumer outdoor clothing and medical protective clothing separately. Recently developed non-fluorinated durable water repellents, some based on green chemistry principles, were evaluated in an in-depth assessment for their functionality against fluorinated short-chain alternatives (with hydro-and oleophobic moieties of carbon chain length of six or less). Repellency towards water and non-polar liquids was evaluated with established standard test methods and by measuring the roll-off angle of liquid droplets with a novel sample holder setup. This improved method allowed an enhanced mechanistic understanding of the droplets’ roll-off processes on woven textiles. The best non-fluorinated alternatives demonstrated high water repellency equal to fluorinated side-chain polymers with ‘short’ fluorinated carbon chains ≤6 carbons, and should be considered as suitable substitutes for consumer outdoor clothing. These results are supported by a survey of end-use requirements indicating water repellency and durability were the most important purchasing criteria. For polar liquids, with lower surface tensions, the repellency provided by non-fluorinated alternatives was clearly reduced, although they had a moderate repellency towards liquids with intermediate polarity (e.g. red wine or synthetic blood). Only fluorinated side-chain polymers with ‘short’ fluorinated carbon chains ≤6 carbons were seen to provide sufficient protection to polar liquids with very low surface tension (olive oil or gastric fluid). Since occupational protective clothing (e.g. medical clothing) often must provide protection against liquid of a wider range of polarities (e.g. in the case of medical clothing, to bodily fluids and protect the wearer from the transmission of diseases), current non-fluorinated DWRs do not provide sufficient liquid repellency. This implies that innovations in textile technology are still needed to substitute PFASs in some types of occupational protective clothing and other end uses where oil and stain repellency is essential.

Ort, förlag, år, upplaga, sidor
Elsevier Ltd , 2019. Vol. 217, s. 134-143
Nyckelord [en]
Apparel, Medical, Outdoor, PFAS, Roll-off angle, Water repellent, Carbon, Drops, Liquids, Occupational diseases, Olive oil, Polymers, Protective clothing, Surface tension, Testing, Textiles, Waterproofing, Weaving, Roll-off angles, Water repellents, Consumer protection
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-38534DOI: 10.1016/j.jclepro.2019.01.160Scopus ID: 2-s2.0-85060913096OAI: oai:DiVA.org:ri-38534DiVA, id: diva2:1314333
Anmärkning

Funding details: Svenska Forskningsrådet Formas; Funding details: Svenska Forskningsrådet Formas, 2012-2148; Funding details: University of Leeds; Funding text 1: This research was partly funded by the SUPFES project ( www.supfes.eu ), funded by Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS; project no.: 2012-2148 ), and its sister project, SUPFES-Health, a project funded by Stockholm County Council and Stockholm University . The aim of the SUPFES and SUPFES-Health projects is to help manufacturers, retailers and end-users find alternatives that can replace the prioritised long-chain fluorinated chemicals which are harmful to the environment and human health. This is achieved by assessing the technical performance and environmental impact from the long-chain fluorinated chemicals and their alternatives. Funding was provided by the University of Leeds , supporting PH's Doctoral research project through a University Research Scholarship . We thank our colleagues and project partners at Swerea IVF (present and previous) who have provided us valuable input during the work with this manuscript. We thank the representatives from the major raw material producers who kindly provided us with valuable information in interview sessions. We also thank Johan Berglund from the Research Institutes of Sweden for assistance with surface topography analysis. Appendix A

Tillgänglig från: 2019-05-08 Skapad: 2019-05-08 Senast uppdaterad: 2019-05-08Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus
Av organisationen
IVF
I samma tidskrift
Journal of Cleaner Production
Naturvetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 1 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.9