Effects of nanoparticle treatment and compatibilizers on the properties of (PP/EPR)/nano-CaCO3 blends

Mnif, Nizar; Massardier, V.; Kallel, Tasnim; Elleuch, Boubaker

doi:10.1007/s12289-008-0337-0

Cited by 9 publications

(9 citation statements)

References 14 publications

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“…Nevertheless, the consequence of the nature of elastomer used can also be taken into account. 7,11 The increase in hardness is not observed with the addition of both types of nanofillers. This unexpected behavior can be attributed to agglomeration with higher concentrations and to the poor filler-polymer interactions.…”

Section: Crosslink Density Measurementmentioning

confidence: 92%

“…Several researchers have already prepared polymer nanocomposites using the micron-sized and nanosized CA inorganic filler. [2][3][4][5][6][7][8][9][10][11][12] To avoid agglomeration, especially when CA nanofiller is used, the surface energy resulting from filler-filler interactions needs to be lowered via coating the filler surface with carboxylic monomers like stearic acid. 2,3,6,10 The nanosized CA has occasionally been used to prepare elastomeric nanocomposites with satisfactory thermal and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…2,3,6,10 The nanosized CA has occasionally been used to prepare elastomeric nanocomposites with satisfactory thermal and mechanical properties. [4][5][6][7]9,11,12 Jin and Park 4 have demonstrated that the thermal stability and mechanical properties of the butadiene rubber/CA (40-70 nm) composites were considerably improved when an optimum level of filler (15 wt %) was used. Likewise, Mishra et al 5 inferred that when the size of nano-CA lowers from 21 to 9 nm, the thermomechanical properties of SBR compounds improve considerably due to superior dispersion of fine nanofillers.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study on curing characteristics and thermomechanical properties of elastomeric nanocomposites: The effects of eggshell and calcium carbonate nanofillers

Saeb

Ramezani‐Dakhel

Khonakdar

et al. 2012

J of Applied Polymer Sci

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After-hatching eggshell (AHES) nanobiofiller and nanocalcium carbonate (nano-CA) were separately added to various elastomers, such as acrylonitrile butadiene rubber (NBR), styrene butadiene rubber (SBR), and natural rubber (NR), in various amounts of 5, 10, and 15 phr. The effect of particle size and dispersion of such nanofillers on thermomechanical properties and curing characteristics were then investigated. The ultimate tensile properties of SBR and NR nanocomposites were improved to some extent when 5 phr of AHES nanofiller was added to the rubber compound compared to CA. In the case of NBR nanocompounds, however, the mechanical properties were seemingly comparable, irrespective of the type of nanofiller. This contradictive behavior could be attributed to the alteration of crosslink density due to particular filler-matrix interaction while using mineral and natural fillers. The results of the rheometric study revealed that using AHES rather than CA slightly increases the scorch time of all types of prepared nanocomposites, whereas a significant drop in the optimum curing time was seen for NBR nanocomposites containing AHES biofiller. Moreover, thermogravimetric analysis showed similar thermal stability for SBR nanocomposites containing AHES and CA fillers. Finer particle size of CA and higher porosity of AHES at high and low loading levels were respectively the main reasons for improvement of ultimate properties.

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Section: Crosslink Density Measurementmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A comparative study on curing characteristics and thermomechanical properties of elastomeric nanocomposites: The effects of eggshell and calcium carbonate nanofillers

Saeb

Ramezani‐Dakhel

Khonakdar

et al. 2012

J of Applied Polymer Sci

View full text Add to dashboard Cite

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“…[39][40][41] To address this problem, reinforcing agent such as talc was usually used to reinforce the strength and modulus of PP/rubber composites. 11,33,39 Accordingly, in this study, the mechanical characteristics of PP/EPDM/talc were superior to PP/EPR.…”

Section: Characterizationmentioning

confidence: 99%

Improving the mechanical properties of 3D printed recycled polypropylene‐based composites through adjusting printing temperature

Wang

Zhang

Cai

et al. 2023

J of Applied Polymer Sci

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This work aimed at investigating the effects of recycling on the mechanical properties of recycled polypropylene (PP)-based composites and improving the mechanical properties of recycled materials by adjusting the remanufacturing temperature. In this study, 3D printing was selected as the remanufacturing approach and the composites were ground and reextruded up to nine times to simulate mechanical recycling. The gel permeation chromatography results indicated that the recycling led to a reduction in molecular weight, increasing the melt fluidity of the materials. Excessive melt flow of material during printing caused the poor quality of printed parts with macro and micro defects, deteriorating the mechanical properties of the printed specimens. To improve the final quality and mechanical properties of the printed specimens, melt flow during the printing of recycled materials was adjusted by tuning the printing temperature. The results found that the mechanical properties of the recycled PP-based composites were well enhanced by using tuned printing temperature.

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“…Damaged PP-based parts of bumpers suffer changes occurred during their useful life, causing oxidation of components, loss of compatibility at the interphase, and progressive deterioration of damping properties during storage time. It indicates a need for optimization of storage processes [13,14]. Studying the modi cations occurring during the environmental aging of thick sheets of PP was carried out using different techniques such as thermal degradation, dynamic-mechanical analysis, scanning electron microscopy (SEM), mechanical tests, and positron annihilation lifetime spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Effect of the thermomechanical reprocessing conditions on polypropylene composites based on automotive waste parts: path to a circular economy?

Garcia-Vazquez

Martinez‐Hernandez

Trujillo-Barragán

et al. 2022

Preprint

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This paper is focused on the study of the waste car bumper samples and their transformation by re-extrusion-injection. Car bumpers are formed by crystalline phases of polypropylene (PP), talc, and amorphous ethylene propylene diene monomer (EPDM). The thermal, mechanical, and structural properties of the recycled material strongly depend on the process used for the extrusion and injection. The FWHM of the X-ray diffraction patterns was used to study the recrystallization phenomenon in PP, and the result had a direct correlation with the findings obtained by Differential Scanning Calorimetry (DSC). Remaining micro paint particles from the waste car bumpers involved in the recycled extrusion-injection process affect the mechanical properties, and their size and toughness could affect injection. Removal of these particles could improve the mechanical properties of recycled PP. Automotive parts based on polypropylene can be recycled for the automotive industry by the production of the same kind of products, and even for other field. It proposed a methodology and metrology to know the accurate chemical composition and its relationship with the properties of PP-based materials to find applications in different fields that allow to development of a circular economy framework.

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Effects of nanoparticle treatment and compatibilizers on the properties of (PP/EPR)/nano-CaCO3 blends

Cited by 9 publications

References 14 publications

A comparative study on curing characteristics and thermomechanical properties of elastomeric nanocomposites: The effects of eggshell and calcium carbonate nanofillers

A comparative study on curing characteristics and thermomechanical properties of elastomeric nanocomposites: The effects of eggshell and calcium carbonate nanofillers

Improving the mechanical properties of 3D printed recycled polypropylene‐based composites through adjusting printing temperature

Effect of the thermomechanical reprocessing conditions on polypropylene composites based on automotive waste parts: path to a circular economy?

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