Polyethylene-octene elastomer/starch blends: miscibility, morphology and mechanical properties

Fu, Xiong; Chen, Xudong; Ren-gui, Wen; He, Xin; Shang, Xiaobing; Liao, Zhengfu; Yang, Liu

doi:10.1007/s10965-007-9110-1

Cited by 22 publications

(14 citation statements)

References 18 publications

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“…The morphology of a polymer blend depends on the rheological properties of components (viscosity ratio and elasticity ratio), volume fractions, and interfacial tension . To reduce the interfacial tension, it is common to add compatibilizers …”

Section: Introductionmentioning

confidence: 99%

Rheology and morphology of polyester/thermoplastic flour blends

Démé

Peuvrel‐Disdier

Vergnes

2013

J of Applied Polymer Sci

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International audienceTwo maize flours (standard and waxy grades) were plasticized in an internal mixer with a constant amount of water and two glycerol contents. The resulting thermoplastic flours (TPFs) were characterized in dynamic oscillatory shear and creep/recovery rheometry. They displayed two different behaviors: the viscoelastic behavior of a high-molecular-weight polymer for the first one and a gel-like behavior for the second one. The TPFs were then mixed with a copolyester [poly(butylene adipate-terephtalate)]. All of the blends contained the same volume fractions and were prepared with the same mixing conditions. The morphology and rheological behavior of each blend were characterized. Different morphologies, ranging from cocontinuous to nodular, were observed. In fixed mixing conditions, the blend morphology was shown to be governed by the rheological behavior of the starchy phase and the plasticizer content. The gel-like behavior of the second TPF seemed to prevent droplet coalescence; this led to a very fine dispersion. The rheological behavior of each blend appeared to be linked to both the morphology and the rheological behavior of the two phases

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Section: Introductionmentioning

confidence: 99%

Rheology and morphology of polyester/thermoplastic flour blends

Démé

Peuvrel‐Disdier

Vergnes

2013

J of Applied Polymer Sci

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“…10. SEM images of the same system showed poor interaction and large interfacial tension in their composites [41].…”

Section: Determination Interaction Parameters and Reactivitiesmentioning

confidence: 95%

A comparative study on the efficiencies of polyethylene compatibilizers by using theoretical methods

Yıldırım

Yurtsever

2012

J Polym Res

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Functionalization of polyethylene chains by grafting of polar groups onto backbones is the most versatile way for preparing polyethylene based compatibilizers (PECs). In this work, a series of theoretical studies were performed to analyze the structure, adhesion and mixing behaviors of PECs. The effect of grafting different polar groups such as acrylic acid (AA), glycidyl methacrylate (GMA), maleic anhydride (MAH) and itaconic acid (IA) on the structure and cohesive properties of polyethylene chains were studied by Molecular Dynamics simulations. The mixing behavior of grafted polyethylenes with some commodity polymers such as polyetylene teraphthalate (PET), polyamide 6 (Nylon6), polyvinyl acetate (PVA) and polylactide (PLA) as well as with starch (ST) and starch acetate (STac) were investigated quantitatively by determining accurate interaction parameters using the modified Flory-Huggins Theory. We showed that the polar groups are the most reactive sites and they bind the chemically incompatible polymers by enabling the stronger interactions at the interfacial region.

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“…The advantages that make starch a suitable candidate is its relatively low cost compared to other biodegradable monomers, abundance in nature and capability of being renewed and fully biodegrade. Moreover, modified starches with a variety of characteristics can be produced, which makes them capable to be blended with a variety of polymers to make biodegradable composites …”

Section: Introductionmentioning

confidence: 99%

“…Xiong Fu et al . reported that in the presence of the polyethylene‐octene elastomer grafted maleic anhydride (POE‐g‐MAH) compatibilizer, the microstructure and properties of POE/starch blends improved . Wu et al .…”

Section: Introductionmentioning

confidence: 99%

Effect of starch ratio and compatibilization on the viscoelastic behavior of POE/starch blends

Bazli

Bagherian

Karrabi

et al. 2019

J of Applied Polymer Sci

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In this research, polyolefin elastomers (POE)/starch blends were prepared using an internal mixer with 0 to 55 wt% starch content, and MAH was added into POE/starch blend to prepare a composite that improves its biodegradation, while tuning the viscoelastic behavior and morphology. The effect of the composition and the compatibilizer addition on properties, such as morphology, rheology, and the creep behavior, was investigated. The observations of microstructures through thescanning electron microscope (SEM) showed that in the incompatibilized blends, the interfacial adhesion of the phases was very weak. In contrast, in compatibilized samples, the broken surface of starch was observed confirming the enhanced interfacial tension. Additionally, the increase in the starch content led to the rise in the relaxation times. The creep test results revealed that with the increment of starch content, the creep of the blends increased. The compatibilizer improved the creep recovery of the blends. Moreover, by addition of the compatibilizer, the values of the creep parameters including η, E 1 , E 2, and τ R obtained from the standard linear solid model (SLS), was higher than those for the incompatibilized blends. The addition of POE-MA compatibilizer can improve the properties of POE/starch blends, while keeping their biocompatibility.

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Polyethylene-octene elastomer/starch blends: miscibility, morphology and mechanical properties

Cited by 22 publications

References 18 publications

Rheology and morphology of polyester/thermoplastic flour blends

Rheology and morphology of polyester/thermoplastic flour blends

A comparative study on the efficiencies of polyethylene compatibilizers by using theoretical methods

Effect of starch ratio and compatibilization on the viscoelastic behavior of POE/starch blends

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