Melt rheological properties of PBT/SEBS and reactively compatibilized PBT/SEBS/SEBS‐<i>g</i>‐MA polymer blends

Sharma, Rajul; Maiti, Sukumar

doi:10.1002/app.41402

Cited by 7 publications

(5 citation statements)

References 36 publications

(67 reference statements)

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“…With only 1.0 wt % epoxy, the impact strength of PBT/POE (80/20) blends was increased 17-fold compared to that of neat PBT . Besides, other functionalized elastomers, such as styrene-(ethylene- co -butadiene)-styrene copolymer (SEBS), , ethylene-propylene copolymer (EPR), and ethylene-propylene-diene copolymer (EPDM), were also used to toughen PBT.…”

Section: Introductionmentioning

confidence: 99%

Toughening of PBT by POE/POE-g-GMA Elastomer through Regulating Interfacial Adhesion and Toughening Mechanism

Shang

Wu²,

Shentu

et al. 2019

Ind. Eng. Chem. Res.

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Supertough poly(butylene terephthalate) (PBT) blends were prepared by melting with poly(ethyleneoctene) (POE) and glycidyl methacrylate grafted POE (POEg-GMA), and the toughening mechanism was systematically analyzed. Scanning electron microscopy (SEM) and rheological measurements identified that POE-g-GMA effectively improved the interaction between PBT and elastomer. The compatibility between phases improved gradually, while the notched impact strength increased at first and then decreased with the increase of POE-g-GMA content. The blends containing 10 wt % POE-g-GMA showed the highest impact strength, which was 18.0-fold compared to that of neat PBT. The study of the toughening mechanism indicated that a suitable compatibility was significant for obtaining supertough PBT blends because the good elastomers dispersion and suitable interfacial adhesion can be obtained simultaneously. The weak interface and the large particle size led to unstable crack propagation, while too strong interfacial adhesion prevented interface debonding and arrested matrix shear yielding. Microvoiding generated by both the debonding and internal cavitation of elastomers followed by matrix shear yielding was the main toughening mechanism in toughened PBT blends.

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Section: Introductionmentioning

confidence: 99%

Toughening of PBT by POE/POE-g-GMA Elastomer through Regulating Interfacial Adhesion and Toughening Mechanism

Shang

Wu²,

Shentu

et al. 2019

Ind. Eng. Chem. Res.

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“…The reduction in the Dn of SEBS particles may be due to the improvement in the compatibility of ABS and SEBS by increasing the weight percentage of SEBS (Vazquez and Barbosa, 2016;Hirayama and Saron, 2018). This compatibility may be attributed to the interactions of chemical structures, as well as similar solubility parameters of SAN and PS (Sharma and Maiti, 2015;Vazquez and Barbosa, 2016;Hirayama and Saron, 2018).…”

Section: Morphology Of Acrylonitrile Butadiene Styrene/ Styrene-ethylene/butylene-styrene Blendsmentioning

confidence: 99%

Tailoring physico-mechanical properties and rheological behavior of ABS filaments for FDM via blending with SEBS TPE

Sayanjali

Rezadoust

Abbassi‐Sourki

2020

RPJ

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Purpose This paper aims to focus on the development of the three-dimensional (3D) printing filaments based on acrylonitrile butadiene styrene (ABS) copolymer and styrene-ethylene/butylene-styrene (SEBS) block copolymer, with tailored viscoelastic properties and controlled flow during the 3D printing process. Design/methodology/approach In this investigation, ABS was blended with various amounts of SEBS via a melt mixing process. Then the ABS/SEBS filaments were prepared by a single-screw extruder and printed by the FDM method. The rheological properties were determined using an MCR 501 from Anton-Paar. The melt flow behavior of ABS/SEBS filaments was determined. The morphology of the filaments was studied by scanning electron microscope and the mechanical (tensile and impact) properties, surface roughness and void content of printed samples were investigated. Findings The rheological results can accurately interpret what drives the morphology and mechanical properties’ changes in the blends. The impact strength, toughness, elongation-at-break and anisotropy in mechanical properties of ABS samples were improved concurrently by adding 40 Wt.% of SEBS. The optimal tensile properties of blend containing 40 Wt.% SEBS samples were obtained at −45°/+45° raster angle, 0.05 mm layer thickness and XYZ build orientation. Optimized samples showed an 890% increase in elongation compared to neat ABS. Also, the impact strength of ABS samples showed a 60% improvement by adding 40 Wt.% SEBS. Originality/value The paper simultaneously evaluates the effects of material composition and 3D printing parameters (layer thickness, raster angle and build orientation) on the rheology, morphology, mechanical properties and surface roughness. Also, a mechanical properties comparison between printed samples and their compression-molded counterpart was conducted.

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“…Sharma et al [58] investigated rheological tests under a piston-type capillary rheometer. They plotted the shear stress s w versus the true shear rate _ g w for polybutylene terephthalate (PBT)/SEBS blends compatibilized with styreneeethyleneebutyleneestyrene block copolymeregrafted maleic anhydride (SEBS-g-MA).…”

Section: In Situ Formation Of a Block Or Graft Copolymer (Reactive Co...mentioning

confidence: 99%

Rheological characterization of compatibilized polymer blends

Taguet¹

2020

Compatibilization of Polymer Blends

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Melt rheological properties of PBT/SEBS and reactively compatibilized PBT/SEBS/SEBS‐g‐MA polymer blends

Cited by 7 publications

References 36 publications

Toughening of PBT by POE/POE-g-GMA Elastomer through Regulating Interfacial Adhesion and Toughening Mechanism

Toughening of PBT by POE/POE-g-GMA Elastomer through Regulating Interfacial Adhesion and Toughening Mechanism

Tailoring physico-mechanical properties and rheological behavior of ABS filaments for FDM via blending with SEBS TPE

Rheological characterization of compatibilized polymer blends

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