Aquatic toxicity assessment of the airborne brake wear debris and binders of friction composites (phenolic resins)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F17%3A10237736" target="_blank" >RIV/61989100:27640/17:10237736 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27740/17:10237736

Result on the web

<a href="https://www.nanocon.eu/files/uploads/01/NANOCON2016_conference_proceedings_content.pdf" target="_blank" >https://www.nanocon.eu/files/uploads/01/NANOCON2016_conference_proceedings_content.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Aquatic toxicity assessment of the airborne brake wear debris and binders of friction composites (phenolic resins)

Original language description

Pollution associated to road traffic and its combustion processes are considerably discussed in recent years. Nowadays, attention is also paid to the non-combustion processes, such as braking. During braking nonairborne and airborne fraction is released into the environment. Manufacturers try to use materials with low environmental risks, but during braking new compounds can be created, due to the high temperatures and pressures. Both fractions as well contain considerable amounts of nano-sized particles which may consequently enter the water environment and may pose risk to the living organisms. However, there are no standardized and unified procedures which could be used for the brake wear debris toxicity assessment. Aim of the study was the evaluation of the acute aquatic toxicity of the airborne brake wear debris and the most commonly used binders (phenolic resins) in the friction composites for brake linings. Brake wear debris from low-metallic brake pads was collected after standard dynamometer test from pocket filter and characterized by Raman microspectroscopy and scanning electron microscopy. Phenolic resin as binder is material with the highest volume in the formulation of the friction composite and contains Hexamethylenetetramine (HMTA) which can be decomposed at the ammonia and formaldehyde in high temperatures. Three commercially available phenolic resins were tested in the initial state and as well after thermal treatment (160 °C), which simulate process of manufacturing. Scanning electron microscopy and Fourier-transform infrared spectroscopy were used for characterization of phenolic resins. EC50 toxicity parameter for freshwater green algae detection organism Raphidocelis subcapitata was evaluated for all tested materials.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

<a href="/en/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Article name in the collection

NANOCON 2016 : conference proceedings : October 19-21, 2016, Brno, Česko

ISBN

978-80-87294-71-0

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

600-606

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

Oct 19, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000410656100105