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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Molybdenum disulfide as a filler for a polymeric matrix at an ultralow content: Polystyrene case

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Author(s):
Rodriguez, Camila L. C. [1] ; Nunes, Mario A. B. S. [2] ; Garcia, Pamela S. [1] ; Fechine, Guilhermino J. M. [1]
Total Authors: 4
Affiliation:
[1] Univ Prebiteriana Mackenzie, Mackenzie Inst Res Graphene & Nanotechnol MackGra, Rua Consolacao 896, BR-01302907 Sao Paulo, SP - Brazil
[2] Fed Univ Campina Grande UFCG, Dept Mat Engn, Rua Aprigio Veloso 882, BR-58429900 Campina Grande, Paraiba - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Polymer Testing; v. 93, JAN 2021.
Web of Science Citations: 0
Abstract

For the first time, polystyrene (PS)/molybdenum disulfide (MoS2) nanocomposites were produced using the melt compounding technique. The nanocomposites presented better thermo stability due to improvements in heat dissipation. Mechanical evaluations of the nanocomposites showed that when only 0.002 wt% of MoS2 was added to PS, it was possible to achieve an improvement of 27, 93.7, and 100% in the tensile strength, elongation at break, and toughness, respectively. Thermo-mechanical results indicated strong intermolecular and physical interactions between filler and polymer matrix contributing to effectiveness of the reinforcement. Very low number of agglomerates was observed by microtomography and Raman spectroscopy, mainly for the system with 0.002% wt.% of MoS2. The results proved that the use of bidimensional particles, even with ultralow content (<0.05 wt%), can improve the mechanical performance of polymeric matrices by a combination of well-done particle synthesis, right choice of processing strategy and good interaction between filler and matrix. (AU)

FAPESP's process: 18/10910-8 - Photodegradation and photostabilization of polymer nanocomposites based on two-dimensional fillers
Grantee:Guilhermino José Macêdo Fechine
Support Opportunities: Regular Research Grants
FAPESP's process: 12/50259-8 - Graphene: photonics and opto-electronics: UPM-NUS collaboration
Grantee:Antonio Helio de Castro Neto
Support Opportunities: Research Projects - SPEC Program