TY - GEN
T1 - Mechanical properties improvement of recycled polypropylene with material value conservation schemes using virgin plastic blends
AU - Gabriel, Djoko Sihono
AU - Tiana, Afifah Nadia
N1 - Funding Information:
This work is supported by Hibah PUTI 2020 funded by DRPM Universitas Indonesia No. NKB-1150/UN2.RST/HKP.05.00/2020.
Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - Plastic packaging that applied material value conservation paradigm will generate good quality plastic waste. It can be recycled to produce raw material for new packaging. However, repetitive recycling has impacts on lowering its mechanical properties. Recycled plastic is expected not to undergo mechanical properties degradation. This research proposed to blend recycled plastic pellets with its virgin plastic to reduce mechanical properties degradation. Mechanical properties of recycled polypropylene are compared to 100% virgin polypropylene and recycled/virgin polypropylene blends with composition 90/10, 70/30, 50/50, 30/70, and 10/90. Mechanical properties tested in this research are modulus of elasticity, tensile strength, elongation at break, and density. All were tested according to ASTM for mechanical properties testing materials. This study revealed blending 50% virgin polypropylene significantly improves mechanical properties of recycled plastics and keep improving at 70% virgin polypropylene. The optimum improvement based on four mechanical properties was found at composition 30/70 of recycled/virgin plastic. Elongation at break is the most critical property where degradation was found at 90/10. Blending 6th recycled and virgin polypropylene gives opportunities to improve the mechanical properties of recycled plastic products with careful consideration of the compositions. By implementing material value conservation, good quality plastic waste can be recycled repetitively. This will decrease accumulation of plastic waste generation and usage of non-renewable plastic’s raw material. The positive impact is not only to economic of plastic industry but also to the quality of environment.
AB - Plastic packaging that applied material value conservation paradigm will generate good quality plastic waste. It can be recycled to produce raw material for new packaging. However, repetitive recycling has impacts on lowering its mechanical properties. Recycled plastic is expected not to undergo mechanical properties degradation. This research proposed to blend recycled plastic pellets with its virgin plastic to reduce mechanical properties degradation. Mechanical properties of recycled polypropylene are compared to 100% virgin polypropylene and recycled/virgin polypropylene blends with composition 90/10, 70/30, 50/50, 30/70, and 10/90. Mechanical properties tested in this research are modulus of elasticity, tensile strength, elongation at break, and density. All were tested according to ASTM for mechanical properties testing materials. This study revealed blending 50% virgin polypropylene significantly improves mechanical properties of recycled plastics and keep improving at 70% virgin polypropylene. The optimum improvement based on four mechanical properties was found at composition 30/70 of recycled/virgin plastic. Elongation at break is the most critical property where degradation was found at 90/10. Blending 6th recycled and virgin polypropylene gives opportunities to improve the mechanical properties of recycled plastic products with careful consideration of the compositions. By implementing material value conservation, good quality plastic waste can be recycled repetitively. This will decrease accumulation of plastic waste generation and usage of non-renewable plastic’s raw material. The positive impact is not only to economic of plastic industry but also to the quality of environment.
KW - Blending
KW - Material value conservation
KW - Mechanical properties
KW - Mechanical recycling
KW - Polypropylene
UR - http://www.scopus.com/inward/record.url?scp=85097601760&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1015.76
DO - 10.4028/www.scientific.net/MSF.1015.76
M3 - Conference contribution
AN - SCOPUS:85097601760
SN - 9783035737059
T3 - Materials Science Forum
SP - 76
EP - 81
BT - 8th Asia Conference on Mechanical and Materials Engineering - Selected peer-reviewed full text papers fromthe 8th Asia Conference on Mechanical and Materials Engineering
A2 - Es-Said, Omar S.
PB - Trans Tech Publications Ltd
T2 - 8th Asia Conference on Mechanical and Materials Engineering, ACMME 2020
Y2 - 11 June 2020 through 14 June 2020
ER -