The effect of polyglycols on the fatigue crack growth of silica-filled natural rubber

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63542678" target="_blank" >RIV/70883521:28610/21:63542678 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/chapter/10.1007/12_2020_69" target="_blank" >https://link.springer.com/chapter/10.1007/12_2020_69</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/12_2020_69" target="_blank" >10.1007/12_2020_69</a>

Result language

angličtina

Original language name

The effect of polyglycols on the fatigue crack growth of silica-filled natural rubber

Original language description

Polyglycols are mainly used as plasticizers to enhance the incorporation of polar fillers in non-polar elastomers. Polyglycols can help to prevent the self-agglomeration of the filler particles and thereby improve their dispersion in the rubber matrix. It can also prevent undesired chemical reactions of the polar components in the curing system with the surface of the filler particles. Therefore, it is expected that polyglycols can play a crucial role as plasticizer and coupling agent in a silica-filled rubber compound. In this work, polyethylene glycol (PEG) and polypropylene glycol (PPG) in two different concentrations were applied in a silica-filled natural rubber (NR). Their effects are compared with the influence of the coupling agent bis[3-(triethoxysilyl)propyl]tetrasulfide (TESPT), which is widely used in rubber industry as silica coupling agent. Firstly, the cure characteristics and fundamental mechanical properties have been studied, whereas the ability of polyglycols to improve cure efficiency as well as filler-elastomer interactions has been confirmed. Moreover, polyglycols are improving the fundamental mechanical properties in general, whereas the polyglycols-treated silica-filled NR composites show lower tensile strength and modulus with a higher elongation at break compared to the TESPT-treated silica-filled NR. Finally, the effect of polyglycols on fatigue crack growth (FCG) resistance was investigated using a Tear and Fatigue Analyzer (TFA (c), Coesfeld GmbH &amp; Co. KG, Germany). It has been found that 2 phr of PEG leads to a higher improvement of FCG resistance in comparison with the corresponding content of TESPT. However, 4 phr of polyglycols significantly decreases this property again. Moreover, the application of PPG generally leads to decreasing FCG resistance. As conclusion, it was stated that the polyglycols act as agent leading to significant improvement of fundamental mechanical behaviour in general as well as to improvement of FCG behaviour using specific polyglycol.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2021

Confidentiality

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

Name of the periodical

Fatigue crack growth in rubber materials : experiments and modelling

ISSN

0065-3195

e-ISSN

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Volume of the periodical

286

Issue of the periodical within the volume

Neuveden

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

39-55

UT code for WoS article

000691737500004

EID of the result in the Scopus database

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