Figure - available from: Journal of Nanomaterials
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(a) TGA and (b) DGA results under air environment for pure MAPE matrix (control) and its respective nanocomposites filled with C15A nanoclay with different loadings.
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Maleated polyethylene (MAPE) was used in this study as a model matrix for hosting hydrophobic nanoclay (C15A) and hydrophilic nanoclay (C30B), to investigate the effect of nanoclay loading on the bulk properties of the composites. Composites were prepared by melt-blending technique, with varying the loading from 0 to 9 wt.%. Tensile, oxidative TGA,...
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Citations
... Furthermore, n exponents increased with the amount of incorporated filler, suggesting that the metal microparticles limit the shear-thinning response of the composites when the 3D internal structure breaks down. The effects of the copper microparticles over n and K parameters can be attributed to the restrictions both on the entanglement and on the short-range interactions among the polymeric backbones in polymeric systems due to the fillers [69]. ...
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Characterizing and understanding composite polymeric systems' rheological behavior is essential to tune their melt flow in polymer processing machinery. Also, rheological tests are suitable tools to evaluate the microstructure and interface adhesion of polymeric composites, which are relevant parameters on the composite performance in their applications. Poly(acrylonitrile‐co‐butadiene‐co‐styrene) (ABS) and its composites are essential materials used to manufacture consumer goods necessary to maintain the quality of life of human beings. In this work, we report on polymer systems based on ABS and poly(styrene‐block‐ethylene‐co‐butylene‐block‐styrene)‐graft‐maleic anhydride (SEBS‐g‐MA) as polymer matrix containing dispersed copper microparticles (ABS:SEBS‐g‐MA:Cu). Polydopamine, a bioinspired polymer, was applied as a filler‐matrix interface compatibilizer of the composites. The linear viscoelastic rheological measurements evidence a shear‐thinning behavior for the composites, and the polydopamine coating affects the polymer phase's relaxation time. The cohesive energy density (Ec) and SEM micrographs indicate good adhesion between copper and ABS:SEBS‐g‐MA due to polydopamine interfacial adherence.
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