Polypropylene/polyamide-6 blends based on commingled plastic wastes

Hong, Soon Man; Hwang, Seung Sang; Jeon, Byung Hun; Choi, Jeong‐Seok; Kim, H. B.; Lim, Sang Kyoo; Choi, Hyoung Jin

doi:10.1007/s10853-005-2547-x

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…For example, it showed that the tensile strength of the highly recycled polypropylene decreased by about 15% when it is compared to neat polypropylene [10]. In another paper, by investigating the mechanical properties of recycled PP/nylon compounded with SEBS elastomer, it was found that the impact strength was improved with the increase of SEBS content, while the tensile strength of PP/nylon blend was not enhanced by the addition of SEBS [25]. The same results were obtained by Jose and coworkers [26] that modified the PP wastes with rubber in a Brabender Plastograph.…”

Section: Introductionmentioning

confidence: 99%

Recycled Polypropylene Improved with Thermoplastic Elastomers

Matei

Râpă²,

Andras³

et al. 2017

International Journal of Polymer Science

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The use of recycled polypropylene (RPP) as raw material for various industries has been known. However, the mechanical and thermal properties of recycled products are lower than those of raw material. The objective of this study was to obtain and investigate the modified recycled polypropylene (RPP) with commercial elastomers for possible applications. The compounded RPP-based thermoplastic elastomers were investigated in order to determine their thermal properties (melt flow index (MFI), differential scanning calorimetry (DSC), VICAT softening temperature (VST), and heat deflection temperature (HDT)), structural characteristics (optical microscopy, atomic force microscopy (AFM), and X-ray diffraction (XRD)), and mechanical properties (tensile properties, density, and IZOD impact). The RPP compounded with 10% elastomer recorded higher tensile properties than the unmodified RPP. Also, IZOD impact strength increased from4.3±0.2 kJ/m2(registered for RPP) to21.7±2.5 kJ/m2for the PPR/SIS30 compound, while the degree of crystallinity decreased for all compounds. The obtained results recommend the RPP/elastomers compounds both for environmental remediation from postconsumer PP wastes and to realize new goods with high performance for various applications.

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Section: Introductionmentioning

confidence: 99%

Recycled Polypropylene Improved with Thermoplastic Elastomers

Matei

Râpă²,

Andras³

et al. 2017

International Journal of Polymer Science

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“…However, the separation of plastics is a very hard process. The development of an effective multifunctionalized compatibilizer for multiple‐component polymer systems is crucial for the recycling and reuse of plastics 1–16…”

Section: Introductionmentioning

confidence: 99%

Compatibilization and toughening of immiscible ternary blends of polyamide 6, polypropylene (or a propylene—Ethylene copolymer), and polystyrene

Wang

Xie

2010

J of Applied Polymer Sci

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In this work, typical ternary blends of three versatile polymers-polyamide 6, a propylene-ethylene copolymer (co-PP), and polystyrene-were studied. As a compatibilizer, co-PP with randomly dispersed minor ethylene units was multimonomer-melt-grafted in the presence of maleic anhydride, styrene, and dicumyl peroxide. The influence of the ethylene content in co-PP and the blend composition on the performance was investigated. Scanning electron microscopy images showed an obvious decrease in the droplet size of the dispersed phase with increases in the compatibilizer content and number of ethylene units in co-PP. Peaks of tan d/temperature curves approaching the glass-transition temperatures of the components were observed with dynamic mechanical thermal analysis. The improved mechanical properties implied good compatibility of the components in the blends. Significant toughening was achieved when the concentration of co-PP was increased from 15 to 25 wt %: the elongation at break of the compatibilized blends increased dozens of times in comparison with the elongation at break of the uncompatibilized blends. The introduction of the multimonomer-melt-grafted co-PP was shown to be an effective approach for improving immiscible multipolymer blends and to have practical potential.

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