Why Lab Studies Matter for Understanding Tyre Wear Emissions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63595018" target="_blank" >RIV/70883521:28610/25:63595018 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Why Lab Studies Matter for Understanding Tyre Wear Emissions

Original language description

Tyres represent the sole component of a vehicle that comes into contact with the road surface, thus fulfilling a pivotal function in the provision of traction, stability and safety. However, it is esti-mated that approximately 6 million metric tonnes of tyre wear particles (TWPs) are released into the environment on an annual basis as a consequence of vehicle operation. Following detachment, these particles interact with non-exhaust emissions (NEEs), including brake dust and road minerals, to form tyre and road wear particles (TRWPs). TRWPs have been identified as a significant source of micro-plastics in the environment and a major contributor to NEEs [1–3].The endeavours to diminish TRWPs emissions are confronted with a fundamental challenge, namely the technical complexity of collecting and analysing these particles directly behind a moving tyre [4, 5]. It is evident that environmental factors, including but not limited to turbulence, adhesion and dispersion, render the consistent capture and validation of these particles on the road a challeng-ing task, given the current technological capabilities.The present study adopts a divergent approach by shifting the focus to controlled laboratory testing. Instead of endeavouring to replicate authentic wear and tear, the DIN abrasion test (ISO 4649) is utilised as a simplified, widely accessible method for the generation of wear particles under repeat-able conditions. It is important to note that the intention of this method is not to simulate actual tyre-road interactions, but rather to offer a standardised platform for investigating how material properties influence particle formation and recovery potential. Furthermore, the intrinsic strength required to initiate crack and thus wear was determined by means of an Intrinsic Strength Analyserä (Coesfeld, Germany).A total of four rubber compounds, differing in their ratio of natural rubber (NR) to butadiene rubber (BR), were produced (Table 1). The purpose of the model compounds under consideration here was to demonstrate a correlation between DIN abrasion and intrinsic strength of the cured rubber materials under laboratory conditions (Figure 1, left).

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/TH80020008" target="_blank" >TH80020008: Modelling Wear of Intrinsically Self-Healing Elastomers for Reduced Particle Emission and Improved Lifetime Performance in Future e-Mobility Concepts</a><br>

Continuities

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

Publication year

2025

Confidentiality

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