Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials
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...
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MDPI AG
2021-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/15/2435 |
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| author | Chanchira Jubsilp Jakkrit Jantaramaha Phattarin Mora Sarawut Rimdusit |
| author_facet | Chanchira Jubsilp Jakkrit Jantaramaha Phattarin Mora Sarawut Rimdusit |
| author_sort | Chanchira Jubsilp |
| collection | DOAJ |
| description | 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<sup>−4</sup>–0.29 × 10<sup>−4</sup> mm<sup>3</sup>/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. |
| first_indexed | 2024-03-10T09:10:08Z |
| format | Article |
| id | doaj.art-70e7ea28d9c847288ee58df275766bfd |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T09:10:08Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-70e7ea28d9c847288ee58df275766bfd2023-11-22T06:02:52ZengMDPI AGPolymers2073-43602021-07-011315243510.3390/polym13152435Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction MaterialsChanchira Jubsilp0Jakkrit Jantaramaha1Phattarin Mora2Sarawut Rimdusit3Department of Chemical Engineering, Srinakharinwirot University, Nakhonnayok 26120, ThailandResearch Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandResearch Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandResearch Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandAsbestos-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<sup>−4</sup>–0.29 × 10<sup>−4</sup> mm<sup>3</sup>/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.https://www.mdpi.com/2073-4360/13/15/2435polymers and plasticsorganic matrix compositesthermal analysisadhesionbrake application |
| spellingShingle | Chanchira Jubsilp Jakkrit Jantaramaha Phattarin Mora Sarawut Rimdusit Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials Polymers polymers and plastics organic matrix composites thermal analysis adhesion brake application |
| title | Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials |
| title_full | Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials |
| title_fullStr | Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials |
| title_full_unstemmed | Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials |
| title_short | Tribological Performance and Thermal Stability of Nanorubber-Modified Polybenzoxazine Composites for Non-Asbestos Friction Materials |
| title_sort | tribological performance and thermal stability of nanorubber modified polybenzoxazine composites for non asbestos friction materials |
| topic | polymers and plastics organic matrix composites thermal analysis adhesion brake application |
| url | https://www.mdpi.com/2073-4360/13/15/2435 |
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