TY - GEN
T1 - Optical properties improvement of recycled polypropylene with material value conservation schemes using virgin plastic blends
AU - Gabriel, Djoko Sihono
AU - Nasrullah, Husen
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:
© 2021 Trans Tech Publications Ltd, Switzerland Online: 2021-02-01.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - Repetitive implementation of material value conservation (MVC) in plastic packaging may lead to good quality plastic waste and high acceptance for secondary recycling. This makes the obtained recycled plastic pellets has good quality and can be used as an alternative raw material for new products. However, treatments and processing in the recycling processes can lead to the degradation of material properties and disrupt the recycled plastics life cycle to be used for new products with high specifications. Recycled plastics are certainly cheaper than virgin plastics, but they have low properties, contaminated, and are only used for low-value products. Therefore, a solution is needed for this problem. This study proposed mixing recycled and virgin plastic pellets to improve recycled plastics whose optical properties have been subjected to quality degradation. A series of tests were carried out on specimens and tested according to the American Society for Testing and Materials (ASTM) method. The optical properties tested were transparency, gloss, and colour. This study revealed that optical properties had an increasing trend along with the large number of virgin plastic pellets added to the blends. The optimal composition was found in the 50:50 composition of virgin-recycled plastic pellets to the 70:30 composition of virgin-recycled plastic pellets. These findings can be useful in improving the optical properties of recycled plastics. In addition, the widespread implementation of MVC can improve the quality of plastic waste and strengthen its acceptance for secondary recycling.
AB - Repetitive implementation of material value conservation (MVC) in plastic packaging may lead to good quality plastic waste and high acceptance for secondary recycling. This makes the obtained recycled plastic pellets has good quality and can be used as an alternative raw material for new products. However, treatments and processing in the recycling processes can lead to the degradation of material properties and disrupt the recycled plastics life cycle to be used for new products with high specifications. Recycled plastics are certainly cheaper than virgin plastics, but they have low properties, contaminated, and are only used for low-value products. Therefore, a solution is needed for this problem. This study proposed mixing recycled and virgin plastic pellets to improve recycled plastics whose optical properties have been subjected to quality degradation. A series of tests were carried out on specimens and tested according to the American Society for Testing and Materials (ASTM) method. The optical properties tested were transparency, gloss, and colour. This study revealed that optical properties had an increasing trend along with the large number of virgin plastic pellets added to the blends. The optimal composition was found in the 50:50 composition of virgin-recycled plastic pellets to the 70:30 composition of virgin-recycled plastic pellets. These findings can be useful in improving the optical properties of recycled plastics. In addition, the widespread implementation of MVC can improve the quality of plastic waste and strengthen its acceptance for secondary recycling.
KW - Material value conservation
KW - Optical properties
KW - Plastic recycling
KW - Polypropylene
KW - Secondary recycling
UR - http://www.scopus.com/inward/record.url?scp=85101963795&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1020.199
DO - 10.4028/www.scientific.net/MSF.1020.199
M3 - Conference contribution
AN - SCOPUS:85101963795
SN - 9783035736861
T3 - Materials Science Forum
SP - 199
EP - 205
BT - Structural and Smart Materials IV - Selected peer-reviewed full text papers from the 6th International Conference on Mechanical Structures and Smart Materials, ICMSSM 2020
A2 - Goh, Kheng Lim
PB - Trans Tech Publications Ltd
T2 - 6th International Conference on Mechanical Structures and Smart Materials, ICMSSM 2020
Y2 - 25 July 2020 through 26 July 2020
ER -