Effect of unsaturation on physicochemical properties of maleic anhydride–grafted acrylonitrile butadiene styrene terpolymer

Manaf, O.; Sheeja,; Jowhar, Ameen; Sujith, A.

doi:10.1177/0095244317734394

Cited by 13 publications

(12 citation statements)

References 42 publications

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“…Report [ 21 ] assumes the thermal stability reduction may be due to two factors: residual amounts of unreacted MA in ABS matrix; or molecular weight decrease. ABS‐MA (2.5% MA/0.5% DCP) showed the lowest thermal stability probably due to the higher molecular weight reduction as corroborated through torque rheometry and MFR.…”

Section: Resultsmentioning

confidence: 99%

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Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

Luna

Siqueira

Araújo

et al. 2020

Vinyl Additive Technology

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Acrylonitrile‐butadiene‐styrene (ABS) functionalization is industrially important since it can wide the ABS application range. However, grafting of functional groups must be effective. This work aimed evaluating the effectiveness of ABS functionalization in an internal mixer, using maleic anhydride (MA) and dicumyl peroxide (DCP) as initiator, at 2.5% and 5.0%; and 0.3% and 0.5% contents respectively. Torque rheometry, melt flow rate (MFR), titration, Fourier transform infrared spectroscopy (FTIR), contact angle, thermogravimetry (TG), differential scanning calorimetry (DSC), and X‐ray diffraction (XRD) were used to collect the main parameters of produced compounds. For ABS with 5% MA and 0.5% DCP, an efficiency of 62% was reached with the degree of grafting 3.1% MA. FTIR spectra confirmed new band in ABS chain in 1780 cm−1 due to the carbonyl group. Reduction in contact angle and thermal stability were verified, whereas MFR and torque rheometry suggested that viscosity decrease is most due to the molecular weight reduction. In general, MA grafted ABS presented proper functionalization with great potential for applications as reactive compatibilizer.

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Section: Resultsmentioning

confidence: 99%

“…Manaf et al [ 21 ] investigated ABS functionalization with MA, using DCP as initiator. FTIR spectra indicated the MA grafts in ABS, producing 1780 cm −1 band.…”

Section: Introductionmentioning

confidence: 99%

Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

Luna

Siqueira

Araújo

et al. 2020

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

“…The grafting of MA slightly reduces the thermal stability of pristine ABS and showed T onset and T d at 308°C and 372°C, respectively. The reduction is because of the decrease in the molecular weight of MA‐ g ‐ABS during the MA grafting process or because of the presence of trace quantity of unreacted MA in the polymer matrix . It indicates that MA grafting slightly lowers its thermal stability.…”

Section: Resultsmentioning

confidence: 99%

“…used the MA‐ g ‐ABS as a compatibilizer for ABS/polycarbonate (PC) alloy and it was also observed that there was 70% reduction in impact strength while GD increased from 0 to 2.5 wt% . Recently, we could quantify the percentage reduction of unsaturation in different MA‐ g ‐ABS samples in terms of iodine value . The limitations associated with grafting of MA on ABS have encouraged for modifying MA‐ g ‐ABS via simple mixing of an external modifying agent.…”

Section: Introductionmentioning

confidence: 99%

Effect of poly(ethylene‐co‐vinyl acetate) additive on mechanical properties of maleic anhydride‐grafted acrylonitrile butadiene styrene for coating applications

Manaf

Nainar

Manoj

et al. 2018

Vinyl Additive Technology

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The Izod impact strength of maleic anhydride-grafted acrylonitrile butadiene styrene (MA-g-ABS) copolymer has been improved by the use of rubbery poly(ethyleneco-vinyl acetate) (EVA). The MA-g-ABS is prepared by an internal mixer using dicumyl peroxide as free radical initiator, and the grafting degree was determined using back-titration method. The amount of EVA is optimized by evaluating the Izod impact strength, tensile, and flexural properties of the samples. Addition of 6% EVA into MA-g-ABS system improved the Izod impact strength and tensile strength by 18% and 35%, respectively. The miscibility of EVA in ABS and MA-g-ABS matrices has been observed using differential scanning calorimetry and scanning electron microscopy techniques. The enhanced adhesion property exhibited by MA-g-ABS/ EVA systems promises it as a good candidate for thermoplastic coating applications on aluminum substrates.

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“…It is possible to observe for PLAr a single decomposition step initiated within the range of 250 to 352 °C, indicating that it presented less thermal stability, when compared to PLA. As the PLAr showed lower molar mass and degree of crystallinity, thermal stability decreased (Manaf et al, 2018;Becena, 2005). The PLA/PLAr blend (25%) hardly changed the thermal decomposition behavior, when compared to neat PLA.…”

Section: Thermogravimetry (Tg)mentioning

confidence: 99%

From disposal to sustainable development: technological potential of poly(lactic acid) (PLA) blends with 3D filament waste

Marinho

Luna

Araújo

et al. 2020

RSD

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Additive manufacturing is growing rapidly in the automotive, medical, and aerospace industries as an option for the manufacturing of products. However, there is a continuous growth in the amount of waste generated by 3D filaments, thus, the reuse practice becomes important, since it brings environmental and economic gains. The present research evaluated the mechanical, thermal, thermomechanical and rheological properties of PLA/PLAr blends containing post-consumption 3D filament. The blends were prepared in a co-rotational twin screw extruder and, subsequently, the extruded granules were injection molded. As the PLAr content in the blends (PLA/PLAr) increased, there was a reduction in viscosity, indicating an improvement in manufacturability. The PLA/PLAr blend (75/25 % wt.) increased the degree of crystallinity compared to neat PLA, indicating that PLAr acted as a nucleating agent. As a consequence, the PLA/PLAr blend (75/25 % wt.) showed performance comparable to neat PLA in thermal stability, elastic modulus, tensile strength, Shore D hardness, impact strength, heat deflection temperature (HDT) and Vicat softening temperature. The reuse of post-consumption 3D filament PLA is feasible for the development of materials with good properties. In addition, value is added to the post-consumption material and there is a contribution to sustainable development.

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Effect of unsaturation on physicochemical properties of maleic anhydride–grafted acrylonitrile butadiene styrene terpolymer

Cited by 13 publications

References 42 publications

Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

Effect of poly(ethylene‐co‐vinyl acetate) additive on mechanical properties of maleic anhydride‐grafted acrylonitrile butadiene styrene for coating applications

From disposal to sustainable development: technological potential of poly(lactic acid) (PLA) blends with 3D filament waste

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