2020
DOI: 10.1590/s1517-707620200003.1137
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Propriedades reológicas de blendas de polipropileno copolímero/polipropileno reciclado oriundo de recipientes industriais

Abstract: RESUMO Neste estudo, foram avaliadas blendas de polipropileno copolímero (PPCop)/polipropileno reciclado (PPRec), proveniente de baldes industriais pós-consumo, em três proporções diferentes (80:20; 60:40 e 40:60% em peso). As blendas foram avaliadas por índice de fluidez, reometria de torque e reologia em regime dinâmico-oscilatório. Os resultados de índice de fluidez indicaram que a mistura de material reciclado com o PPCop promove uma diminuição da massa molar, em comparação ao PPCop. Por reometria de torqu… Show more

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“…ABS and SEBS showed higher torques (44.1 N.m and 52.7 N.m, respectively) compared with PP. Torque is directly proportional to the viscosity 33,34 ; therefore, PP presented the lowest viscosity under the employed processing conditions. The presence of aromatic rings in ABS and SEBS structure contributed to increasing the torque and, consequently, the viscosity.…”
Section: Resultsmentioning
confidence: 95%
“…ABS and SEBS showed higher torques (44.1 N.m and 52.7 N.m, respectively) compared with PP. Torque is directly proportional to the viscosity 33,34 ; therefore, PP presented the lowest viscosity under the employed processing conditions. The presence of aromatic rings in ABS and SEBS structure contributed to increasing the torque and, consequently, the viscosity.…”
Section: Resultsmentioning
confidence: 95%