A comparative study of effect of compatibilization agent on untreated and ultrasonically treated waste ground rubber tire and polyolefin blends

Kim, Jin Kuk; Lee, Sung Hyo; Balasubramanian, Maridass

doi:10.1590/s0104-14282006000400004

Cited by 16 publications

(3 citation statements)

References 18 publications

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“…The partial substitution of the fresh rubber phase by GTR in TPE blends is another research focus that can lead to ecological and economic benefits. Several works combine regeneration techniques of GTR with chemical functionalization of their surface, to achieve a better mechanical behavior of the TPE GTR blends . Different rubber materials have been analyzed, chosen due to their affinity with GTR, like styrene butadiene rubber (SBR) and natural rubber (NR) or with the thermoplastic phase, like ethylene propylene diene monomer (EPDM).…”

Section: Introductionmentioning

confidence: 99%

Partial replacement of EPR by GTR in highly flowable PP/EPR blends: Effects on morphology and mechanical properties

Lima

Oliveira

Costa

2015

J of Applied Polymer Sci

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This research analyzes the effect of ground tire rubber (GTR) and a novel metallocene-based ethylene-propylene copolymer (EPR), with high propylene content, on the morphology and mechanical behavior of ternary polymer blends based on a highly flowable polypropylene homopolymer (PP). The PP/EPR blends morphology, with very small domains of EPR dispersed in the PP matrix, indicates a good compatibility among these materials, which leads to a significant improvement on elongation at break and impact strength. The incorporation of EPR on the rubber phase of thermoplastic elastomeric blends (TPE) based on GTR and PP (TPE GTR ) has a positive effect on their mechanical performance, attributed to the toughness enhancement of the PP matrix and to the establishment of shell-core morphology between the rubber phases. The mechanical properties of the ternary blends reveal that TPE GTR blends allow the upcycling of this GTR material by injection molding technologies.

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Section: Introductionmentioning

confidence: 99%

Partial replacement of EPR by GTR in highly flowable PP/EPR blends: Effects on morphology and mechanical properties

Lima

Oliveira

Costa

2015

J of Applied Polymer Sci

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“…Maleic anhydride (MA) grafted materials like SEBS, ethylene propylene diene monomer (EPDM) and PP were used as compatibilizing agents. Kim et al study the effect of ultrasonic treated GTR and SEBS‐g‐MA on polyolefinic blends. Zhang et al studied the effect of bitumen treated GTR with SEBS‐g‐MA or EPDM‐g‐MA.…”

Section: Introductionmentioning

confidence: 99%

Partial replacement of EPDM by GTR in thermoplastic elastomers based on PP/EPDM: Effects on morphology and mechanical properties

Lima

Oliveira

Costa

2013

J of Applied Polymer Sci

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The formulation of recycled thermoplastic elastomeric materials (TPE) based on ground tyre rubber (GTR), generated from end of life tyres, can be an alternative strategy to deal with a type of waste responsible for increasingly environmental problems over the past decades. The incompatibility of GTR with thermoplastics places several issues on the formulation of these materials, which this study tries to overcome. An encapsulation strategy of the GTR by an elastomeric phase is proposed in this work to overcome the lack of adhesion between the materials. Ternary blends, composed of a highly flowable polypropylene homopolymer, an ethylene propylene diene monomer (EPDM) and GTR were formulated and their morphology and mechanical properties analyzed. The morphology of the blends showed interaction between the materials, revealing that the encapsulation of GTR by a rubber phase can be an adequate strategy to formulate recycled-based TPE materials, if the dimension of the GTR particles is controlled and taken into consideration. The mechanical properties revealed the replacement effect of EPDM by GTR, and its dependence on the amount of that replacement.

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“…Grafting of MA onto non-polar polymers increases the hydrophilicity of the polymer surface. Therefore, the maleated polymer can be used as a main component in a reactive blending process [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. The grafting of MA onto NR has been commonly done in the molten state by using shearing action in the presence or absence of peroxide.…”

Section: Introductionmentioning

confidence: 99%

The use of waste rubber in natural rubber in the presence of maleic anhydride-grafted natural rubber (MA-g-NR): study on curing, rheology, morphology, and properties of the blend

Nematollahi

Jalali‐Arani

2014

Journal of Polymer Engineering

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The direct incorporation of ground tire rubber (GTR) as a waste rubber into a virgin polymer matrix causes a remarkable reduction in its mechanical and performance properties. In this work, maleic anhydridegrafted natural rubber (MA-g-NR) was employed as a compatibilizer to improve the interaction between a natural rubber (NR) matrix and GTR. The effect of MA-g-NR on curing characteristics, rheological behavior, morphology, and performance properties of the NR-GTR blend was studied using an oscillating disk rheometer, rheomechanical spectroscopy (RMS), scanning electron microcopy (SEM), and tensile and abrasion testing. The obtained results by RMS and SEM tests revealed better adhesion between NR and GTR in the presence of MA-g-NR. Using up to 8 parts of MA-g-NR caused an increase in the curing rate index, and a remarkable increase in mechanical properties and abrasion resistance was observed, which was comparable to or even better than the virgin vulcanizate.

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A comparative study of effect of compatibilization agent on untreated and ultrasonically treated waste ground rubber tire and polyolefin blends

Cited by 16 publications

References 18 publications

Partial replacement of EPR by GTR in highly flowable PP/EPR blends: Effects on morphology and mechanical properties

Partial replacement of EPR by GTR in highly flowable PP/EPR blends: Effects on morphology and mechanical properties

Partial replacement of EPDM by GTR in thermoplastic elastomers based on PP/EPDM: Effects on morphology and mechanical properties

The use of waste rubber in natural rubber in the presence of maleic anhydride-grafted natural rubber (MA-g-NR): study on curing, rheology, morphology, and properties of the blend

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