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Article

Effect of Styrene-Diene Block Copolymers and Glass Bubbles on the Post-Consumer Recycled Polypropylene Properties

1
Center for Research and Eco-Metallurgical Expertise (ECOMET UPB), University Politehnica from Bucharest, 313 Spl. Independentei, 060042 Bucharest, Romania
2
National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), 202 Spl. Independentei, 060021 Bucharest, Romania
*
Authors to whom correspondence should be addressed.
In memoriam: Professor Dr. Eng. Mihai DIMONIE.
Materials 2020, 13(3), 543; https://doi.org/10.3390/ma13030543
Received: 26 December 2019 / Revised: 15 January 2020 / Accepted: 20 January 2020 / Published: 23 January 2020
(This article belongs to the Special Issue Synthesis, Characterization and Applications of Block Copolymers)
The recycled polypropylene (rPP) materials that meet technical requirements such as reducing the dimensions and improving the tensile, elongation, impact strength, thermal stability, as well as melt processing, are required for the manufacturing industry. In this paper, we studied the mechanical and thermal properties of post-consumer rPP by adding both synthesized thermoplastic elastomers, and glass bubbles (GB) by a melt allowing process. Styrene-butadiene (SBS) and styrene-isoprene (SIS) block-copolymers that had a styrene content of 30 wt% were synthesized by anionic sequential polymerization. The obtained post-consumer rPP composites were characterized by optical microscopy, scanning electron microscopy (SEM), mechanical analyses (tensile, density, hardness, VICAT softening temperature (VST), heat deflection temperature (HDT), dynamic mechanical analysis (DMA), IZOD strength) and thermal analyses (differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)). Weight reduction and improvement of the tensile, elongation, impact strength, thermal stability, as well as melt processing of post-consumer recycled polypropylene (rPP) properties compounded with thermoplastic elastomers and glass bubbles, sustain the use of these formulations for engineering applications. View Full-Text
Keywords: recycled polypropylene; block copolymers; glass bubbles; processability; mechanical tests recycled polypropylene; block copolymers; glass bubbles; processability; mechanical tests
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MDPI and ACS Style

Râpă, M.; Spurcaciu, B.N.; Coman, G.; Nicolae, C.A.; Gabor, R.A.; Ghioca, P.N.; Berbecaru, A.C.; Matei, E.; Predescu, C. Effect of Styrene-Diene Block Copolymers and Glass Bubbles on the Post-Consumer Recycled Polypropylene Properties. Materials 2020, 13, 543. https://doi.org/10.3390/ma13030543

AMA Style

Râpă M, Spurcaciu BN, Coman G, Nicolae CA, Gabor RA, Ghioca PN, Berbecaru AC, Matei E, Predescu C. Effect of Styrene-Diene Block Copolymers and Glass Bubbles on the Post-Consumer Recycled Polypropylene Properties. Materials. 2020; 13(3):543. https://doi.org/10.3390/ma13030543

Chicago/Turabian Style

Râpă, Maria, Bogdan N. Spurcaciu, George Coman, Cristian A. Nicolae, Raluca A. Gabor, Paul N. Ghioca, Andrei C. Berbecaru, Ecaterina Matei, and Cristian Predescu. 2020. "Effect of Styrene-Diene Block Copolymers and Glass Bubbles on the Post-Consumer Recycled Polypropylene Properties" Materials 13, no. 3: 543. https://doi.org/10.3390/ma13030543

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