Publication: Tribological performance and thermal stability of nanorubber-modified polybenzoxazine composites for non-asbestos friction materials
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Issued Date
2021
Resource Type
Language
eng
File Type
application/pdf
ISSN
20734360
Other identifier(s)
2-s2.0-85111701447
Rights Holder(s)
Scopus
Bibliographic Citation
Polymers. Vol 13, No.15 (2021)
Suggested Citation
Jubsilp C., Jantaramaha J., Mora P., Rimdusit S. Tribological performance and thermal stability of nanorubber-modified polybenzoxazine composites for non-asbestos friction materials. Polymers. Vol 13, No.15 (2021). doi:10.3390/polym13152435 Retrieved from: https://hdl.handle.net/20.500.14740/5708
Author(s)
Abstract
Asbestos-free friction composite based on ultrafine full-vulcanized acrylonitrile butadiene rubber particles (UFNBRPs)-modified polybenzoxazine was successfully developed. The UFNBRPs- modified polybenzoxazine friction composite was characterized for chemical, tribological, and mechanical properties as well as thermal stability. The UFNBRPs not only act as a filler to reduce noise in the friction composites due to their suitable viscoelastic behaviors but also play a key role in friction modifiers to enhance friction coefficient and wear resistance in the polybenzoxazine composites. The chemical bonding formation between UFNBRPs and polybenzoxazine can significantly improve friction, mechanical, and thermal properties of the friction composite. The outstanding tribological performance of the friction composite under 100-350 °C, i.e., friction coefficients and wear rates in a range of 0.36-0.43 and 0.13 × 10-4-0.29 × 10-4 mm3/Nm, respectively, was achieved. The high flexural strength and modulus of the friction composite, i.e., 61 MPa and 6.4 GPa, respectively, were obtained. The friction composite also showed high thermal stability, such as 410 °C for degradation temperature and 215 °C for glass transition temperature. The results indicated that the obtained UFNBRPs-modified polybenzoxazine friction composite meets the industrial standard of brake linings and pads for automobiles; therefore, the UFNBRPs-modified polybenzoxazine friction composite can effectively be used as a replacement for asbestos-based friction materials. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Subject(s)
Asbestos
Brake linings
Chemical bonds
Chemical stability
Friction materials
Glass transition
Polymer blends
Thermodynamic stability
Tribology
Wear of materials
Wear resistance
Acrylonitrile butadiene rubber
Degradation temperatures
Friction coefficients
High flexural strength
High thermal stability
Industrial standards
Tribological performance
Visco-elastic behaviors
Friction
Brake linings
Chemical bonds
Chemical stability
Friction materials
Glass transition
Polymer blends
Thermodynamic stability
Tribology
Wear of materials
Wear resistance
Acrylonitrile butadiene rubber
Degradation temperatures
Friction coefficients
High flexural strength
High thermal stability
Industrial standards
Tribological performance
Visco-elastic behaviors
Friction