Morphology and Properties of Poly(ethylene terephthalate)/Polycarbonate Alloy Toughened with Different Kinds of Elastomers

Tang, Xianwen; Guo, Weihong; Yin, Guorong; Li, Binyao; Wu, Chifei

doi:10.1007/s00289-006-0679-z

Cited by 10 publications

(11 citation statements)

References 21 publications

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“…The increment in the flexural strength was attributed to the good interfacial adhesion between the phases. The maleic anhydride functional group of SEBS ‐g‐ MA reacts with hydroxyl end group of PET and PC, which attribute to strengthen interfacial adhesion and improve the compatibility between components as reported by Tang et al . The decrease in the flexural strength at higher SEBS loading can be related to elastomeric nature of the excess SEBS ‐g‐ MA.…”

Section: Resultssupporting

confidence: 91%

“…This could be attributed to the compatibilization effect of SEBS ‐g‐ MA. The compatibility of the polymers will be improved by maleic anhydride grafted elastomer, because the functional group (–MA) reacts with end group (–OH) of PET and PC, which strengthen interfacial adhesion and improve the compatibility between components . The homogeneous and fibrillar morphology were observed with incorporation of 10 and 20 phr SEBS ‐g‐ MA [Figure (c,d)].…”

Section: Resultssupporting

confidence: 90%

“…In this case it is proposed that HNTs prefer to interact with the polar SEBS ‐g‐ MA due to the formation of hydrogen bonding between Si‐O and Al‐OH group of HNTs and OH groups of SEBS ‐g‐ MA. While the mechanism of the interaction between the anhydride groups of SEBS ‐g‐ MA with hydroxyl groups of PET (Figure ) and with PC (Figure ) have been well documented, a proposed scheme of interaction between MA, Si‐OH and Al‐OH is presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…The compatibility of the polymers will be improved by maleic anhydride grafted elastomer, because the functional group (-MA) reacts with end group (-OH) of PET and PC, which strengthen interfacial adhesion and improve the compatibility between components. 16 The homogeneous and fibrillar morphology were observed with incorporation of 10 and 20 phr SEBS-g-MA [ Figure 11(c,d)]. It can be seen that, a transition from a brittle type to ductile of morphology was observed with increased SEBS-g-MA.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Mechanical and thermal properties of SEBS‐g‐MA compatibilized halloysite nanotubes reinforced polyethylene terephthalate/polycarbonate/nanocomposites

Jamaludin

Inuwa

Hassan

et al. 2015

J of Applied Polymer Sci

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In this study, the effect of maleic anhydride grafted styrene‐ethylene‐butylene‐styrene (SEBS‐g‐MA) content on mechanical, thermal, and morphological properties of polyethylene terephthalate/polycarbonate/halloysite nanotubes (PET/PC/HNTs) nanocomposites has been investigated. Nanocomposites of PET/PC (70 : 30) with 2 phr of HNTs were compounded using the counter rotating twin screw extruder. A series of formulations were prepared by adding 5–20 phr SEBS‐g‐MA to the composites. Incorporation of 5 phr SEBS‐g‐MA into the nanocomposites resulted in the highest tensile and flexural strength. Maximum improvement in the impact strength which is 245% was achieved at 10 phr SEBS‐g‐MA content. The elongation at break increased proportionately with the SEBS‐g‐MA content. However, the tensile and flexural moduli decreased with increasing SEBS‐g‐MA content. Scanning electron microscopy revealed a transition from a brittle fracture to ductile fracture morphology with increasing amount of SEBS‐g‐MA. Transmission electron microscopy showed that the addition of SEBS‐g‐MA into the nanocomposites promoted a better dispersion of HNTs in the matrix. A single glass transition temperature was observed from the differential scanning calorimetry test for compatibilized nanocomposites. Thermogravimetric analysis of PET/PC/HNTs nanocomposites showed high thermal stability at 15 phr SEBS‐g‐MA content. However, on further addition of SEBS‐g‐MA up to 20 phr, thermal stability of the nanocomposites decreased due to the excess amount of SEBS‐g‐MA. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42608.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical and thermal properties of SEBS‐g‐MA compatibilized halloysite nanotubes reinforced polyethylene terephthalate/polycarbonate/nanocomposites

Jamaludin

Inuwa

Hassan

et al. 2015

J of Applied Polymer Sci

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“…However, most polymer blend pairs, including PET/PP blends, are thermodynamically incompatible, thus it tends to grossly separate. The incompatible blends lead to an inhomogeneous system with poor interfacial adhesion and results in poor mechanical properties . It is difficult to obtain a good dispersion in polymer blends, particularly for combinations of nonpolar with polar polymers .…”

Section: Introductionmentioning

confidence: 99%

Interface modification of compatibilized polyethylene terephthalate/polypropylene blends: Effect of compatibilization on thermomechanical properties and thermal stability

Inuwa

Hassan

Samsudin

et al. 2015

J Vinyl Addit Technol

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Polyethylene terephthalate (PET) and polypropylene (PP) are incompatible thermoplastics because of differences in chemical structure and polarity, hence their blends possess inferior mechanical and thermal properties. Compatibilization with a suitable block/graft copolymer is one way to improve the mechanical and thermal properties of the PET/PP blend. In this study, the toughness, dynamic mechanical analysis (DMA), and thermogravimetric analysis (TGA) of PET/PP blends were investigated as a function of different content of styrene-ethylene-butylene-styrene-g-maleic anhydride (SEBS-g-MAH) compatibilizer. PET, PP, and SEBS-g-MAH were melt-blended in a single step using the counter rotating twin screw extruder with compatibilizer concentrations of 0, 5, 10, and 15 phr, respectively. The impact strength of compatibilized blend with 10 phr SEBS-g-MAH increased by 300% compared to the uncompatibilized blend. Scanning electron microscope (SEM) micrographs show that the addition of 10 phr SEBS-g-MAH compatibilizer into the PET/PP blends decreased the particle size of the dispersed PP phase to the minimum level. The improvement of the storage modulus and the decrease in the glass transition temperature of the PET phase indicated an interaction among the blend components. Thermal stability of the PET/PP blends was significantly improved because of the addition of SEBS-g-MAH. J. VINYL ADDIT. TECHNOL., 23:45-54, 2017.

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Recycled poly(ethylene terephthalate)/linear low‐density polyethylene blends through physical processing

Zhang

et al. 2009

J of Applied Polymer Sci

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Poly(styrene-ethylene/butylene-styrene) (SEBS) was used as a compatibilizer to improve the thermal and mechanical properties of recycled poly(ethylene terephthalate)/linear low-density polyethylene (R-PET/LLDPE) blends. The blends compatibilized with 0-20 wt % SEBS were prepared by low-temperature solid-state extrusion. The effect of SEBS content was investigated using scanning electron microscope, differential scanning calorimeter, dynamic mechanical analysis (DMA), and mechanical property testing. Morphology observation showed that the addition of 10 wt % SEBS led to the deformation of dispersed phase from spherical to fibrous structure, and microfibrils were formed at the interface between two phases in the compatibilized blends. Both differential scanning calorimeter and DMA results revealed that the blend with 20 wt % SEBS showed better compatibility between PET and LLDPE than other blends studied. The addition of 20 wt % of SEBS obviously improved the crystallizibility of PET as well as the modulus of the blends. DMA analysis also showed that the interaction between SEBS and two other components enhanced at high temperature above 130 C. The impact strength of the blend with 20 wt % SEBS increased of 93.2% with respect to the blend without SEBS, accompanied by only a 28.7% tensile strength decrease.

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Morphology and Properties of Poly(ethylene terephthalate)/Polycarbonate Alloy Toughened with Different Kinds of Elastomers

Cited by 10 publications

References 21 publications

Mechanical and thermal properties of SEBS‐g‐MA compatibilized halloysite nanotubes reinforced polyethylene terephthalate/polycarbonate/nanocomposites

Mechanical and thermal properties of SEBS‐g‐MA compatibilized halloysite nanotubes reinforced polyethylene terephthalate/polycarbonate/nanocomposites

Interface modification of compatibilized polyethylene terephthalate/polypropylene blends: Effect of compatibilization on thermomechanical properties and thermal stability

Recycled poly(ethylene terephthalate)/linear low‐density polyethylene blends through physical processing

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