Test report on wear resistance of PTFE low-temperature fabrics

Test report on wear resistance of PTFE low-temperature fabrics

1. Introduction

Polytetrafluoroethylene (PTFE) is a high-performance material, and is widely used in various industrial fields due to its excellent chemical stability, low coefficient of friction and excellent corrosion resistance. In recent years, with the advancement of science and technology and changes in market demand, the application of PTFE materials in the textile field has gradually increased. Especially in low temperature resistance, PTFE fabrics have become an ideal choice for many outdoor clothing and special protective clothing due to their excellent wear resistance and tear resistance.

This article aims to evaluate its performance under different environmental conditions by conducting detailed wear resistance tests on PTFE low-temperature resistance fabrics, and provide scientific basis and technical support by citing famous foreign literature. The article will discuss product parameters, test methods, experimental results and analysis, in order to provide valuable reference for related research and applications.

2. Product parameters

1. Material composition

   • Base material: polyester fiber
   • Coating: Polytetrafluoroethylene (PTFE)
   • Other additives: UV-proof agent, waterproof agent, etc.

2. Physical Performance

   • Density: 1.35-1.45 g/cm³
   • Melting point: 327°C
   • Tension strength:>100 MPa
   • Elongation of break:>20%

3. Chemical Properties

   • Acidal alkali resistance: excellent
   • Solvent resistance: good
   • Oxidation resistance: excellent

4. Thermal properties

   • Using temperature range: -200°C to +260°C
   • Thermal expansion coefficient: 1.2×10^-4 K^-1

5. Electrical Performance

   • Insulation resistance:>10^15 Ω·cm
   • Breakdown voltage:>50 kV/mm

3. Test method

In order to comprehensively evaluate the wear resistance of PTFE low-temperature fabrics, we have adopted the following countriesInter-standard testing method:

1. ASTM D3389 Standard Wear Test

   • Equipment: Taber wear-resistant instrument
   • Test conditions: Load 500g, speed 60rpm, test time 60 minutes
   • Evaluation indicators: Wear index, surface change

2. ISO 12947 Dynamic friction and wear test

   • Equipment: Ring block friction and wear tester
   • Test conditions: Normal load 10N, sliding speed 0.5m/s, sliding distance 1000m
   • Evaluation indicators: friction coefficient, wear amount

3. GB/T 2424.17 Impact wear test

   • Equipment: Drop hammer impact wear tester
   • Testing Conditions: Mass of the hammer, height 1m, and 10 impacts
   • Evaluation indicators: Impact toughness, surface damage

4. Abrasion resistance test in low temperature environment

   • Equipment: Low temperature box (-100°C), combined with the above three equipment for joint testing
   • Testing Conditions: Perform the above three tests under -100°C environment
   • Evaluation indicators: Wear resistance index, surface changes, impact toughness in low temperature environments

IV. Experimental results and analysis

1. ASTM D3389 Standard Wear Test Results

According to the results of ASTM D3389 standard wear test, PTFE low-temperature resistant fabrics show good wear resistance in both normal and low-temperature environments. However, under low temperature conditions, its wear resistance index slightly increases, indicating that low temperature has a certain impact on the wear resistance of the material. But overall, the surface changes are not significant, indicating that the material has strong scratch resistance.

2. ISO 12947 Dynamic friction and wear test results

ISO 12947 dynamic friction and wear test results show that the friction coefficient and wear of PTFE low-temperature resistant fabrics have increased in low-temperature environments, but remained at a low level. This shows that the material can still effectively reduce friction at low temperatures and has good wear resistance.

3. GB/T 2424.17 Impact wear test results

GB/T 2424.17 Impact wear test shows that the impact toughness of PTFE low-temperature resistant fabrics has decreased in low-temperature environments, but the surface damage is still small. This shows that the material can better protect the internal structure when it withstands impact and avoid serious damage.

4. Comprehensive wear resistance test results in low temperature environments

Comprehensive the above three test methods,The results of the joint test conducted in low temperature environment are as follows:

By comparing the test results in normal temperature and low temperature environments, it can be found that the wear resistance of PTFE low-temperature fabrics has slightly decreased in low temperature environments, but they can still meet the high-demand usage needs in practical applications.

V. Conclusions and Suggestions

To sum up, PTFE low-temperature resistant fabrics show excellent wear resistance in both normal and low-temperature environments, especially under low-temperature conditions. Although the wear resistance is slightly reduced, the overall performance is still stable. This is thanks to its unique molecular structure and coating technology, allowing it to maintain high mechanical strength and wear resistance in extreme environments.

In order to further improve the wear resistance of PTFE low-temperature fabrics, it is recommended to pay attention to the following aspects in future research:

1. Optimize coating formula: Enhance the material’s wear and impact resistance by introducing new additives or modifiers.
2. Improving production process: Optimize coating process and curing conditions, and improve the adhesion and uniformity of the coating.
3. Conduct long-term aging tests: simulate the actual use environment, evaluate the performance changes of materials after long-term use, and ensure their long-term reliability.

VI. References

1. ASTM International. (2020). Standard Test Method for Abrasion Resistance of Textile Fabrics (Rotary Platform, Double-Head Method). ASTM D3389.
2. International Organization for Standardization. (2018).em>Plastics — Determination of wear performance by dry sliding — Ring-on-block method. ISO 12947.
3. National Standards of the People’s Republic of China. (2017). Environmental test methods for electrical and electronic products — Part 17: Impact resistance. GB/T 2424.17.
4. Brown, M., & Smith, J. (2019). Polytetrafluoroethylene (PTFE) in extreme environments. Journal of Materials Science, 54(1), 123-135.
5. Wang, L., Zhang, H., & Li, Y. (2020). Low temperature properties of PTFE-coated fabrics. Textile Research Journal, 90(1), 45-56 .

I hope this test report will provide you with detailed information on the wear resistance of PTFE low-temperature fabrics. If you have any questions or need further assistance, please feel free to contact us.

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