Enhancing PLA/ABS Blends Compatibility: A Comparative Study With SAN-Epoxy and SAN-MA

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dc.contributor.authordos Santos Filho E.A.
dc.contributor.authorLuna C.B.B.
dc.contributor.authorda Silva Barbosa Ferreira E.
dc.contributor.authorPinto G.M.
dc.contributor.authorAndrade R.J.E.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorAraujo E.M.
dc.date.accessioned2025-04-01T06:19:58Z
dc.date.available2025-04-01T06:19:58Z
dc.date.issued2025
dc.description.abstract© 2025 John Wiley & Sons Ltd.Blends of poly (lactic acid) (PLA) with acrylonitrile-butadiene-styrene (ABS) were prepared using styrene–acrylonitrile copolymers functionalized with maleic anhydride (SAN-MA) and epoxy (SAN-Epoxy) as compatibilizers. The blends were processed in an internal mixer and injection molded. Analyses included torque rheometry, dynamic oscillatory shear rheology, impact resistance, tensile strength, Shore D hardness, heat deflection temperature (HDT), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). Rheological tests showed increased torque and viscosity in PLA/ABS blends, particularly with SAN-Epoxy, indicating better phase compatibility. The incorporation of 10 phr (parts per hundred resin) of SAN-Epoxy into the PLA/ABS blend (70/30% by weight) increased impact resistance by approximately 200% compared to pure PLA. Additionally, it promoted better performance in tensile modulus and tensile strength compared to the system compatibilized with SAN-MA. SEM analysis revealed that ABS particles in the PLA matrix had more stable size and distribution with SAN-Epoxy, explaining the favorable mechanical results. The Shore D hardness and HDT of the PLA/ABS/SAN-Epoxy blends remained unchanged compared to PLA, suggesting a balance of properties. Overall, SAN-Epoxy proved to be the most effective compatibilizer, indicating greater interaction with the phases, thereby contributing to improved mechanical and thermal performance.
dc.description.issuenumber1
dc.description.volume36
dc.identifier.doi10.1002/pat.70078
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40381
dc.relation.ispartofPolymers for Advanced Technologies
dc.rightsAcesso Restrito
dc.subject.otherlanguageacrylonitrile butadiene styrene
dc.subject.otherlanguagecompatibilization
dc.subject.otherlanguagepoly(lactic acid)
dc.subject.otherlanguagepolymer blend
dc.titleEnhancing PLA/ABS Blends Compatibility: A Comparative Study With SAN-Epoxy and SAN-MA
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-85214806700
local.scopus.subjectAcrylonitrile-butadiene-styrene
local.scopus.subjectBlend compatibility
local.scopus.subjectComparatives studies
local.scopus.subjectEpoxy
local.scopus.subjectHeat deflection temperature
local.scopus.subjectPoly lactic acid
local.scopus.subjectPoly(lactic acid)
local.scopus.subjectScanning electrons
local.scopus.subjectShore D-hardness
local.scopus.subjectStyrene-acrylonitrile copolymers
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85214806700&origin=inward
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