Wear-Resistant Elastomeric Composites Based on Unvulcanized Rubber Compound and Recycled Polytetrafluoroethylene
<p>The procedure of elastomeric composite fabrication.</p> "> Figure 2
<p>Microphotographs of PTFE powders: (<b>a</b>,<b>b</b>) r-PTFE; (<b>c</b>,<b>d</b>) TOMFLON<sup>TM</sup>.</p> "> Figure 2 Cont.
<p>Microphotographs of PTFE powders: (<b>a</b>,<b>b</b>) r-PTFE; (<b>c</b>,<b>d</b>) TOMFLON<sup>TM</sup>.</p> "> Figure 3
<p>XRD patterns of the studied fluoropolymers.</p> "> Figure 4
<p>XRD patterns: (<b>a</b>) modeling of the peaks of the crystalline phase for the WPTFE sample; (<b>b</b>) modeling of halo of amorphous phases; (<b>c</b>) modeling of the entire radiograph, where blue line is experimental X-ray diffraction pattern indicated, red line is calculated radiograph indicated, gray line is difference radiograph, and lilac line is profiles of all reflections, assigned to both the crystalline component of the sample and the amorphous one.</p> "> Figure 4 Cont.
<p>XRD patterns: (<b>a</b>) modeling of the peaks of the crystalline phase for the WPTFE sample; (<b>b</b>) modeling of halo of amorphous phases; (<b>c</b>) modeling of the entire radiograph, where blue line is experimental X-ray diffraction pattern indicated, red line is calculated radiograph indicated, gray line is difference radiograph, and lilac line is profiles of all reflections, assigned to both the crystalline component of the sample and the amorphous one.</p> "> Figure 5
<p>TG (<b>a</b>) and DSC (<b>b</b>) curves: 1—WPTFE; 2—r-PTFE; 3—TOMFLON<sup>TM</sup>.</p> "> Figure 6
<p>SEM micrographs and elemental composition of elastomeric composites with 10 wt.% PTFE content: (<b>a</b>) URC/PhFR/TOMFLON<sup>TM</sup>; (<b>b</b>) URC/PhFR/r-PTFE.</p> "> Figure 7
<p>SEM micrographs and elemental composition of elastomeric composites with 20 wt.% PTFE content: (<b>a</b>) URC/PhFR/TOMFLON<sup>TM</sup>; (<b>b</b>) URC/PhFR/r-PTFE.</p> "> Figure 8
<p>TG curves of polymer–polymer mixture and elastomeric composites: 1—URC/PhFR; 2—URC/PhFR/TOMFLON<sup>TM</sup>; 3—URC/PhFR/r-PTFE.</p> "> Figure 9
<p>Deformation-strength properties of elastomeric composites 1—URC/PhFR/TOMFLON<sup>TM</sup> and 2—URC/PhFR/r-PTFE depending on the content of antifriction filler: (<b>a</b>) tensile strength, MPa; (<b>b</b>) relative elongation at break, %.</p> "> Figure 10
<p>Coefficient of friction of an elastomeric composite depending on the content of antifriction filler: 1—URC/PhPR/r-PTFE; 2—URC/PhPR/TOMFLON<sup>TM</sup>.</p> "> Figure 11
<p>Wear rate of the elastomeric composite depending on the content of antifriction filler: 1—URC/PhPR/r-PTFE; 2—URC/PhPR/TOMFLON<sup>TM</sup>.</p> ">
Abstract
:1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Element | C | Mn | P | S | Fe |
---|---|---|---|---|---|
Content | 0.42–0.5 | 0.6–0.9 | up to 0.04 | up to 0.05 | 98.51–98.98 |
Sample | Phase | Reflection Positions by 2θ, ° | Integral Peak Area | Rwp |
---|---|---|---|---|
WPTFE | Crystalline | 17.7°; 31.2°; 36.3°; 36.8°; 41.0°; 48.9°; 55.9°; 65.9°; 68.8° | 30,571.2152 | 4.079 |
Amorphous I | 17.4° | 26,022.4045 | ||
Amorphous II | 38.8° | 27,561.4415 | ||
r-PTFE | Crystalline | 18.2°; 31.7°; 37.2°; 37.7°; 41.4° | 37,831.0084 | 3.317 |
Amorphous I | 16.7° | 19,139.5714 | ||
Amorphous II | 40.1° | 2274.41598 | ||
TOMFLONTM | Crystalline | 18.1°; 31.6°; 36.6°; 40.4° | 22,596.3958 | 6.069 |
Amorphous I | 17.3° | 5457.07316 | ||
Amorphous II | 38.2° | 21,008.7386 |
No | Sample | Phase Composition, % | * Degree of Crystallinity, % | ||
---|---|---|---|---|---|
Crystalline Phase | Amorphous Phase I | Amorphous Phase II | |||
1 | WPTFE | 36.3 | 30.9 | 32.8 | 54.0 |
2 | r-PTFE | 64.0 | 32.3 | 3.7 | 66.5 |
3 | TOMFLONTM | 43.0 | 10.1 | 46.9 | 81.0 |
No. Sample | PTFE Filler Type | T0.1 10 wt.% | T0.3 30 wt.% | T0.5 50 wt.% |
---|---|---|---|---|
1 | WPTFE | 533 | 559 | 571 |
2 | r-PTFE | 525 | 543 | 554 |
3 | TOMFLONTM | 501 | 535 | 548 |
No. Sample | Type of Elastomeric Composite | T0.1 10 wt.% | T0.3 30 wt.% |
---|---|---|---|
1 | URC/PhFR | 309 | 449 |
2 | URC/PhFR/r-PTFE | 381 | 499 |
3 | URC/PhFR/TOMFLONTM | 316 | 441 |
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Ayurova, O.; Kornopoltsev, V.; Khagleev, A.; Kurbatov, R.; Mishigdorzhiyn, U.; Dyakonov, A.; Mognonov, D. Wear-Resistant Elastomeric Composites Based on Unvulcanized Rubber Compound and Recycled Polytetrafluoroethylene. Lubricants 2024, 12, 29. https://doi.org/10.3390/lubricants12020029
Ayurova O, Kornopoltsev V, Khagleev A, Kurbatov R, Mishigdorzhiyn U, Dyakonov A, Mognonov D. Wear-Resistant Elastomeric Composites Based on Unvulcanized Rubber Compound and Recycled Polytetrafluoroethylene. Lubricants. 2024; 12(2):29. https://doi.org/10.3390/lubricants12020029
Chicago/Turabian StyleAyurova, Oksana, Vasiliy Kornopoltsev, Andrey Khagleev, Roman Kurbatov, Undrakh Mishigdorzhiyn, Afanasiy Dyakonov, and Dmitriy Mognonov. 2024. "Wear-Resistant Elastomeric Composites Based on Unvulcanized Rubber Compound and Recycled Polytetrafluoroethylene" Lubricants 12, no. 2: 29. https://doi.org/10.3390/lubricants12020029