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

dc.contributor.authorRodriguez C.L.C.
dc.contributor.authorNunes M.A.B.S.
dc.contributor.authorGarcia P.S.
dc.contributor.authorFechine G.J.M.
dc.description.abstract© 2020 Elsevier LtdFor 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.
dc.relation.ispartofPolymer Testing
dc.rightsAcesso Aberto
dc.subject.otherlanguageBidimensional MoS2
dc.subject.otherlanguagePolymer nanocomposites
dc.subject.otherlanguageReinforcement effect
dc.titleMolybdenum disulfide as a filler for a polymeric matrix at an ultralow content: Polystyrene case
local.scopus.subjectElongation at break
local.scopus.subjectMechanical evaluation
local.scopus.subjectMechanical performance
local.scopus.subjectMolybdenum disulfide
local.scopus.subjectParticle synthesis
local.scopus.subjectPhysical interactions
local.scopus.subjectPolymeric matrices
local.scopus.subjectProcessing strategies