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Toward "Green" Hybrid Materials: Core-Shell Particles with Enhanced Impact Energy Absorbing Ability
KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknologi, Polymerteknologi.
Vise andre og tillknytning
2016 (engelsk)Inngår i: ACS Sustainable Chemistry and Engineering, ISSN 2168-0485, Vol. 4, nr 7, s. 3757-3765Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Restrained properties of "green" degradable products drive the creation of materials with innovative structures and retained eco-attributes. Herein, we introduce the creation of impact modifiers in the form of core-shell (CS) particles toward the creation of "green" composite materials. Particles with CS structure constituted of PLA stereocomplex (PLASC) and a rubbery phase of poly(epsilon-caprolactone-co-D,L-lactide) (P[CL-co-LA]) were successfully achieved by spray droplet atomization. A synergistic association of the soft P[CL-co-LA] and hard PLASC domains in the core-shell structure induced unique thermo-mechanical effects on the PLA-based composites. The core-shell particles enhanced the crystallization of PLA matrices by acting as nucleating agents. The core-shell particles functioned efficiently as impact modifiers with minimal effect on the composites stiffness and strength. These findings provide a new platform for scalable design of polymeric-based structures to be used in the creation of advanced degradable materials.

sted, utgiver, år, opplag, sider
American Chemical Society (ACS), 2016. Vol. 4, nr 7, s. 3757-3765
Emneord [en]
Polylactide, Biodegradable, Stereocomplex, Homocomposites, Impact modifier
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-191756DOI: 10.1021/acssuschemeng.6b00397ISI: 000380291200021Scopus ID: 2-s2.0-84979020322OAI: oai:DiVA.org:kth-191756DiVA, id: diva2:970967
Forskningsfinansiär
Swedish Research Council, A0347801EU, European Research Council, 246776
Merknad

QC 20160915

Tilgjengelig fra: 2016-09-15 Laget: 2016-09-02 Sist oppdatert: 2016-09-15bibliografisk kontrollert

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