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Melt-spun polylactic acid fibers: Effect of cellulose nanowhiskers on processing and properties
CSIR, Materials Science and Manufacturing, Polymers and Composites, Port Elizabeth.
CSIR, Materials Science and Manufacturing, Polymers and Composites, Port Elizabeth.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0003-4762-2854
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0001-8909-3554
2013 (Engelska)Ingår i: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 127, nr 1, s. 274-281Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Bio-based continuous fibers were processed from polylactic acid (PLA) and cellulose nanowhiskers (CNWs) by melt spinning. Melt compounding of master batches of PLA with 10 wt % CNWs and pure PLA was carried out using a twin-screw extruder in which compounded pellets containing 1 and 3 wt % of CNWs were generated for subsequent melt spinning. The microscopy studies showed that the fiber diameters were in the range of 90-95 µm, and an increased surface roughness and aggregations in the fibers containing CNWs could be detected. The addition of the CNWs restricted the drawability of the fibers to a factor of 2 and did not affect the fiber stiffness or strength, but resulted in a significantly lower strain and slightly increased crystallinity. Furthermore, CNWs increased the thermal stability, creep resistance and reduction in thermal shrinkage of PLA fibers, possibly indicating a restriction of the polymer chain mobility due to the nanoscale additives.

Ort, förlag, år, upplaga, sidor
2013. Vol. 127, nr 1, s. 274-281
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Biomaterial
Forskningsämne
Trä och bionanokompositer
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URN: urn:nbn:se:ltu:diva-7730DOI: 10.1002/app.37884ISI: 000309594400035Scopus ID: 2-s2.0-85027949491Lokalt ID: 625a18eb-89e9-4d5f-b23d-e432315a60aaOAI: oai:DiVA.org:ltu-7730DiVA, id: diva2:980620
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Validerad; 2013; 20120507 (andbra)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Oksman, KristiinaMathew, Aji P.

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