Use of SEBS/EPR and SBR/EPR as Binary Compatibilizers for PE/PP/PS/HIPS Blends: A Work Oriented to the Recycling of Thermoplastic Wastes

Equiza, Nilton; Yave, Wilfredo; Quijada, Raúl; Yazdani‐Pedram, Mehrdad

doi:10.1002/mame.200700148

Cited by 20 publications

(5 citation statements)

References 37 publications

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“…Indeed, it is well known that the improvement of the adhesion between the two phases enables stress transfer at the interface [9,10]. Compatibilization of several mixed plastics waste has been studied extensively [9][10][11][12][13][14][15][16]. In particular, Kaiser et al [9], in their review, describe the methods to achieve recycling by compatibilization of non-miscible polymer types.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, Kaiser et al [9], in their review, describe the methods to achieve recycling by compatibilization of non-miscible polymer types. Equiza et al [15] studied the use of styrene and ethylene/butylene (SEBS)/EPR and SBR/EPR as compatibilizers for PE/PP/PS/HIPS blends, discovering that the SEBS/EPR system allowed blends with better mechanical properties than the SBR/EPR system. Zenkiewicz et al [16] investigated the effect of SEBS grafted with maleic anhydride as compatibilizer of recycled composites made of blends of the several polymers, showing an increase of impact and tensile strength by over three to almost five times.…”

Section: Introductionmentioning

confidence: 99%

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Effect of SEBS and OBC on the Impact Strength of Recycled Polypropylene/Talc Composites

2020

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In this paper, we report a study on the use of a linear triblock copolymer based on styrene and ethylene/butylene (SEBS) and a polypropylene (PP)-based olefin block copolymer (OBC) for improving the impact strength of a recycled polypropylene (PP) from packaging waste. Talc was used as a reinforcing filler in order to prepare a material suitable for being used in the automotive sector. The composite mixtures were prepared by melt extrusion, and the samples were manufactured by injection molding. Impact strength was evaluated by Izod tests, and a morphological study of the produced fractures was performed. As a result, a composite with substantially improved impact properties was prepared, with a two-fold increase of the impact strength in the case of unnotched specimens, while only a limited positive effect was produced on notched specimens. Since talc-filled PP is a typical material used in the automotive sector, the obtained results demonstrate that post-consumer PP coming from the municipal waste collection of plastic packaging can be successfully used in car components with no compromise in terms of mechanical requirements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of SEBS and OBC on the Impact Strength of Recycled Polypropylene/Talc Composites

2020

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“…In another study (Equiza et al 2007) SEBS/EPR and SBR/EPR were used as binary compatibilizing systems of a mixed PE/PP/PS/HIPS stream. In the same study, beyond the effect of the presence of the compatibilizers, the important effect of the processing conditions in relationship with the final properties was also investigated.…”

Section: With a Compatibilizing Methodsmentioning

confidence: 99%

Recycling Polymer Blends

Mantia¹,

Scaffaro²

2014

Polymer Blends Handbook

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“…Therefore, some researchers attempted to improve the mechanical properties of the obtained products by adding a compatibilizer to enhance the interface adhesion. The effects of concentration and type of compatibilizers on mechanical properties have been extensively studied . Although compatibilizers provide the potential of giving the overlooked wastes new values, deficiencies exist in this method.…”

Section: Introductionmentioning

confidence: 99%

An effective method of processing immiscible polymer blends into strong fiber

Shi

Fang

Maffe

et al. 2019

Polymer Engineering & Sci

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A unique methodology employing a "nearly co-continuous morphology" for processing immiscible polymers into strong fiber is presented, and an immiscible polypropylene/polystyrene (PP/PS) blend is used as a model system to demonstrate the effectiveness of this methodology. The "nearly cocontinuous morphology" is easier to obtain than the fully cocontinuous structure, and yet, it provides an engineering solution to the production of strong fiber from an immiscible polymer blend. In addition, a process different from traditional melt spinning is used to prepare fiber with good mechanical properties. Traditional melt spinning involves large jet stretch and therefore introduces large interfacial orientation but little molecular orientation in polymer blends. To address this issue, the PP/PS blend is spun with nearly zero jet stretch and after solidification undergoes hot drawing at temperature close to the glass transition temperature of PS. This process sequence imparts a large degree of molecular orientation to the PP phase and produces a strong fiber. The proposed methodology can be extended to other blend systems and provides a potential route for directly recycling commingled polymer waste without preseparation or compatibilization. POLYM. ENG.

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Use of SEBS/EPR and SBR/EPR as Binary Compatibilizers for PE/PP/PS/HIPS Blends: A Work Oriented to the Recycling of Thermoplastic Wastes

Cited by 20 publications

References 37 publications

Effect of SEBS and OBC on the Impact Strength of Recycled Polypropylene/Talc Composites

Effect of SEBS and OBC on the Impact Strength of Recycled Polypropylene/Talc Composites

Recycling Polymer Blends

An effective method of processing immiscible polymer blends into strong fiber

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