SavedAdd your journal

Journals / Textile and Apparel / 2020 / Volume: 30 Issue: 4

Sound-absorption properties of composite materials containing waste-wool / polyamide fibers and their relationship with fractal dimensions

Lvlihua Lvlihua(Dalian Polytechnic University)
Pages
—
Publication Date
2020-12-29
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Then, quantitative relationships between the fractal dimension and the maximum sound-absorption coefficient, and between the fractal dimension and the resonant sound-absorption frequency, which play a major role in the sound-absorption design of composite materials, were deduced.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:To solve the problems related to the recycling of waste fibers, composite materials were prepared by the hot-pressing method using waste-wool fibers and waste low-melting-point polyamide fibers combined into a net as the raw materials.
📊
Key Findings & Data:The sound-absorption properties of the composite materials were studied by the transfer-function method, and under optimized technological conditions, the sound-absorption coefficients were above 0.8 and the sound-absorption bands were wide.
💡
Conclusion & Impact:Then, quantitative relationships between the fractal dimension and the maximum sound-absorption coefficient, and between the fractal dimension and the resonant sound-absorption frequency, which play a major role in the sound-absorption design of composite materials, were deduced.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:waste-wool fibers · sound absorption properties

Abstract

To solve the problems related to the recycling of waste fibers, composite materials were prepared by the hot-pressing method using waste-wool fibers and waste low-melting-point polyamide fibers combined into a net as the raw materials. The effects of the volume density, mass fraction of waste-wool fibers, and thickness on the sound-absorption properties of the resulting composite materials were studied by the controlling-variable method. The sound-absorption properties of the composite materials were studied by the transfer-function method, and under optimized technological conditions, the sound-absorption coefficients were above 0.8 and the sound-absorption bands were wide. According to the box-counting-dimension method, which is based on the fractal theory, the fractal dimensions of the composite materials were calculated using the Matlab program. The relationships between the fractal dimensions and the volume densities, mass fractions of waste-wool fibers, and thicknesses of the composite materials were also analyzed. Then, quantitative relationships between the fractal dimension and the maximum sound-absorption coefficient, and between the fractal dimension and the resonant sound-absorption frequency, which play a major role in the sound-absorption design of composite materials, were deduced.

🔖

Cite This Article

Lvlihua, L. (2020). Sound-absorption properties of composite materials containing waste-wool / polyamide fibers and their relationship with fractal dimensions. Textile and Apparel, Volume: 30 Issue: 4. https://doi.org/10.32710/tekstilvekonfeksiyon.699529

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (38)

  1. Tian, C. Y., Wang, F., & Rong, V. H. (2005). Discussion on Sustainable Development Countermeasures of Fine Wool Sheep Industry in Inner Mongolia. Animal Husbandry and Feed Science, 26(4), 48
  2. Zhangye Comprehensive Test Station of National Wool Sheep Industry Technology System. (2017). Development Trend and Policy Suggestions of National Wool Sheep Industry in 2017. Gansu Animal and Veterinary Sciences, 47(4), 27-28
  3. Jiang, Z. H. (2002). Japan Developed a Technology to Use Scrap Wool & Feather China Resources Comprehensive Utilization, (2), 8
  4. Alzeer, M., & MacKenzie, K. J. (2012). Synthesis and mechanical properties of new fibre-reinforced composites of inorganic polymers with natural wool fibres. Journal of Materials Science, 47(19), 6958-6965
  5. Patnaik, A., Mvubu, M., Muniyasamy, S., Botha, A., & Anandjiwala, R. D. (2015). Thermal and sound insulation materials from waste wool and recycled polyester fibers and their biodegradation studies. Energy and Buildings, 92, 161-169
  6. Li, Y., & Zhang, D. K. (2018). Preparation of wet-laid nonwoven fabric using super-short waste wool fiber. Journal of Xi'an Polytechnic University, 32(6), 623-627
  7. He, Y. Z., & Wang, H. F. (2012). Research for recycle process of waste wool fiber. Wool Textile Journal, 40(9), 14-17
  8. Yao, J. B., & He, T. H. (2003). Preparation of wool's keratin solution. Wool Textile Journal, (4), 16-19
  9. Jia, J. R., & Yao, J. B. (2015). The latest progress in research of recycling scrap of wool keratin. Wool Textile Journal, 43(1), 45-49
  10. Sun, Y. L., Yao, J. B., Li, B., & Jia, S. G. (2015). Application of wool keratin solution in wool fabric shaping. Journal of Textile Research, 36(4), 97-101
  11. Li, K., & Wang, M. (2018). Preparation and properties of blended membrane based on abandoned wool protein. Dyeing and Finishing, 44(5), 8-23
  12. Lv, L. H., Liu, Y. J., Li, C. T., Guo, J., & Ye, F. (2019). Properties of Waste Fiber/Polyurethane Flame Retardant Insulation Board. Tekstil ve Konfeksiyon, 29(2), 152-161
  13. Lv, L. H., Bi, J. H., Ye, F., Qian, Y. F., Zhao, Y. P., Chen, R., & Su, X. G. (2017). EXTRACTION OF DISCARDED CORN HUSK FIBERS AND ITS FLAME RETARDED COMPOSITES. Tekstil ve Konfeksiyon, 27(4), 408-413
  14. Cheng, G. (2009). Performance and application of wool sound absorption and thermal insulation product. New Building Materials, 36(5), 63-66
  15. Luan, Q. L., Qiu, H., Cheng, G., & Ge, M. Q. (2016). Preparation and sound absorption properties of waste wool nonwoven material. Journal of Textile Research, 37(7), 77-81
  16. Luan, Q. L., Qiu, H., Cheng, G., & Ge, M. Q. (2016). Preparation of porous sound absorbing material based on discarded wool fiber. Chinese Journal of Environmental Engineering, 10(10), 6081-6086
  17. Luan, Q. L., Qiu, H. Cheng, G., & Liu, X. Y. (2017). Sound absorption properties of nonwoven material based on wool and its hybrid fibers. Journal of Textile Research, 38(3):67-71
  18. Burrough, P. A. (1981). Fractal dimensions of landscapes and other environmental data. Nature, 294(5838), 240-242
  19. Milne, B. T. (1988). Measuring the fractal geometry of landscapes. Applied Mathematics and Computation, 27(1), 67-79
  20. West, B. J., & Goldberger, A. L. (1987). Physiology in fractal dimensions. American Scientist, 75(4), 354-365
  21. Du, C. J., & Sun, D. W. (2004). Recent developments in the applications of image processing techniques for food quality evaluation. Trends in food science & technology, 15(5), 230-249
  22. Yang, X. H. (2003).Expression and Fractal Simulation of Morphologic Structures of Nonwovens (Doctoral dissertation). Available from CNKI and Wangfang database. (DOI:10.7666/d.y645366)
  23. Wang, Y. H. (2018). T700/BMI Porosity Detection and Fractal Research of Pore Morphology Feature (Master’s thesis). Available from CNKI and Wangfang database. (DOI:10.7666/d.y01662570)
  24. Lyu, L., Liu, Y., Bi, J., & Guo, J. (2019). Sound Absorption Properties of DFs/EVA Composites. Polymers, 11(5), 811
  25. Yang, S., & Li, M. S. (2017). Relationship between fractal structure and warmth retention properties of wool fiber assembly. Journal of Textile Research, 38(08), 11-15
  26. Chen, L., Jiang, Z., Jiang, S., Liu, K., Yang, W., Tan, J., & Gao, F. (2019). Nanopore Structure and Fractal Characteristics of Lacustrine Shale: Implications for Shale Gas Storage and Production Potential. Nanomaterials, 9(3), 390
  27. Lyu, L. H., Li, C. W., & Wu, C. X. (2018). Preparation of Discarded Peanut Shell/EVA Composite and Its Sound Absorption Properties. Advanced Textile Technology, 26(4), 12-16
  28. Ma, Y. X. (2010). STUDY ON SOUND ABSORPTION PROPERTIES OF COMPOSITE NEEDLE-PUNCHED NONWOVENS (Master’s thesis). Available from CNKI and Wangfang database. (DOI:10.7666/d.y1864290)
  29. Sun, X., Wu, Z. Q., & Huang, Y. (2003). Fractal Principle and Its Application. Anhui, China: China University of Science and Technology Press
  30. Li, H. T., & Deng, Y. (2002). Matlab program Tutorial. Beijing, China: Higher Education Press
  31. Li, C. W., & Lyu, L. H. (2018). Preparation and properties of sound absorption composites based on waste wool. Journal of Textile Research, 39(10), 74-80
  32. Zhao, M. (2004). Mechanical Vibration and Noise. Beijing, China: Science Press
  33. Peng, L. M., Wang, J. F., Fu, F., Wang, D., & Zhu, G. Y. (2015). Experimental Study on Sound Absorption of Wood Fiber/Polyester Fiber Composite Materials. Journal of Building Materials, 18(1), 172-176
  34. Mandelbrot, B. B. (1983). The fractal geometry of nature/Revised and enlarged edition. New York, WH Freeman and Co., 1983, 495 p
  35. Gao, X. S., Tong, Y., Zhuang, Y., & Hong, J. Q. (2000). THE FRACTAL STRUCTURE OF NATURAL FIBERS AND THE DEVELOPMENT OF FIBER WITH FRACTAL STRUCTURE. CHINA SYNTHETIC FIBER INDUSTRY, 23(4), 35-38
  36. Zhang, J. Z. (2011). Fractal. Beijing, China: Tsinghua University Press
  37. Yang, S., Yu, W. D, & Pan, N. (2010). Effect of nonwovens pore fractal dimensions on their acoustic absorption behaviors. Journal of Textile Research, 31(12), 28-32, 38
  38. Gao, G., Zhong, H. J., Song, X. J., Liu, X. R., & Mi, X. Q. (2005). Fractal characteristic analysis of non-woven fabrics. Journal of Tianjin Polytechnic University. 24(2):86-88.