Comparative Analysis of Virgin and Recycled Thermoplastic Polymer based on Thermochemical Characteristics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146445" target="_blank" >RIV/00216305:26210/22:PU146445 - isvavai.cz</a>

Result on the web

<a href="http://www.cetjournal.it/cet/22/94/220.pdf" target="_blank" >http://www.cetjournal.it/cet/22/94/220.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3303/CET2294220" target="_blank" >10.3303/CET2294220</a>

Result language

angličtina

Original language name

Comparative Analysis of Virgin and Recycled Thermoplastic Polymer based on Thermochemical Characteristics

Original language description

Plastics are among the most-used materials globally, with thousands of different grades and a wide range of applications. However, its end-of-life management is a common issue, despite most plastics produced today containing highly recyclable thermoplastics. The quality of recycled plastic material should be enhanced as it depends on several factors, such as cross-contamination, presence of additives, impurities and degradation rate. In this study, a comparative analysis of thermochemical characteristics of virgin and recycled commonly-used thermoplastic polymer, high-density polyethylene (HDPE), was performed to study the impact of recycling on the material properties. The proximate and ultimate analysis, identification of functional groups and thermal behaviour were performed to study the chemical changes in the recycled and virgin material. The results showed that recycled HDPE started to degrade at a lower temperature than virgin HDPE, with a lower degradation rate (92.7 wt.%) compared to virgin HDPE (99.6 wt.%) due to the presence of impurities and other factors. Calorific values of both samples were comparable, while the degree of crystallinity was 79.8 % for virgin HDPE and around 19 % lower for recycled HDPE samples. Significant differences between recycled and virgin material were also obtained in terms of melting and crystallisation enthalpies.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/GF21-45726L" target="_blank" >GF21-45726L: Sustainable Plastic Value Chain to Support a Circular Economy Transition</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering Transactions

ISSN

2283-9216

e-ISSN

—

Volume of the periodical

neuveden

Issue of the periodical within the volume

94

Country of publishing house

IT - ITALY

Number of pages

6

Pages from-to

1321-1326

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85139482920