Blends with technological potential of copolymer polypropylene with polypropylene from post-consumer industrial containers

Luna, Carlos Bruno Barreto; Ferreira, Eduardo da Silva Barbosa; Silva, Lara Júlia Medeiros Dantas da; Silva, Wallisson Alves da; Araújo, Edcleide Maria; Melo, João Baptista da Costa Agra de

doi:10.1088/2053-1591/ab56b2

Cited by 25 publications

(17 citation statements)

References 40 publications

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“…MFR is an indirect assessment of polymer's molecular weight, inversely proportional to the viscosity, the higher the polymer's MFR, the lower the molecular weight. [ 25 ] Figure 2 shows MFR data for ABS and ABS‐MA as function of MA and DCP contents.…”

Section: Resultsmentioning

confidence: 99%

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%

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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“…As already reported, the presence of a second phase or other contaminants in PP decrease the crystallinity to values close to 40 % [13,19,23] , as observed here to samples A1 to A5 (Table 3). The pure PP (A6) has the higher crystallinity, 65 %, in accordance with other recycled PP [17] .…”

Section: Differential Scanning Calorimetry (Dsc) Analysesmentioning

confidence: 63%

“…The authors concluded that the main difference between virgin and recycled high impact polypropylene used in this industry is based mainly in the production process itself and higher electricity consumption for recycling, with no deterioration in properties, even before the 6 th reprocessing. Luna et al [17] studied blends of copolymer polypropylene and recycled copolymer polypropylene obtained from industrial containers. They concluded that blends could contain up to 60 % of recycled material by weight, maintaining quality and reducing the product final cost.…”

Section: Introductionmentioning

confidence: 99%

Disposable coffee capsules as a source of recycled polypropylene

et al. 2020

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“…A estabilidade estrutural dos polímeros em temperaturas superiores a ambiente (25°C) pode ser mensurada por meio da temperatura de deflexão térmica (HDT) (Filho et al, 2020;Luna et al, 2019b). Essa é uma propriedade de grande importância na indústria de transformação, tendo em vista que estabelece a máxima resistência termomecânica dos polímeros (Rusayyis et al, 2018;Luna et al, 2019c). A Figura 6 mostra os resultados da temperatura de deflexão térmica (HDT) da PA6,…”

Section: Temperatura De Deflexão Térmica (Hdt)unclassified

Investigação do desempenho de blendas PA6/HIPS compatibilizadas com SEBS-MA. Efeito do teor do compatibilizante nas propriedades mecânicas, termomecânicas, reometria de torque e na morfologia

Nogueira

Luna

Siqueira

et al. 2021

RSD

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Blendas de poliamida 6 (PA6) com poliestireno de alto impacto (HIPS) foram preparadas, utilizando-se o copolímero de estireno-(etileno-butileno)-estireno enxertado de anidrido maleico (SEBS-MA), como agente compatibilizante. As blendas foram preparadas em uma extrusora de rosca dupla corrotacional e, posteriormente, moldadas por injeção. As propriedades de reometria de torque, resistência ao impacto Izod, temperatura de deflexão térmica (HDT) e microscopia eletrônica de varredura (MEV) foram investigadas. Os resultados mostraram que houve um aumento no torque das blendas de PA6/HIPS com a adição do compatibilizante SEBS-MA. A resistência ao impacto e a HDT aumentaram 56% e 24,5 % em comparação com a PA6 pura, quando a formulação da blenda PA6/HIPS contém 15 pcr de SEBS-MA. Essa blenda apresentou uma maior estabilidade na morfologia, conforme verificado no MEV, com melhor adesão interfacial e menor quantidade de vazios, resultando principalmente na maior resistência ao impacto. Em geral, as propriedades de resistência ao impacto e HDT da PA6 podem ser adaptadas e aprimoradas por meio do desenvolvimento de blendas poliméricas.

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Blends with technological potential of copolymer polypropylene with polypropylene from post-consumer industrial containers

Cited by 25 publications

References 40 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

Disposable coffee capsules as a source of recycled polypropylene

Investigação do desempenho de blendas PA6/HIPS compatibilizadas com SEBS-MA. Efeito do teor do compatibilizante nas propriedades mecânicas, termomecânicas, reometria de torque e na morfologia

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