Silk Nonwoven: Recycling and Upcycling of Waste Silk into Bio-based Materials with High Value-Added Properties 


Vol. 24,  No. 10, pp. 3489-3500, Oct.  2023
10.1007/s12221-023-00258-w


PDF
  Abstract

With the increasing awareness of human environmental protection, the development of biodegradable bio-based materials has received more attention. As the off-cuts of silk, a natural protein fiber, waste silk still retains excellent properties such as biodegradability and biocompatibility, recycling and utilization of waste silk is currently very limited. To find a possible method to recycle low-cost waste silk and process it into high-value-added products, in this work, the waste silk from the silk spinning process was prepared into silk nonwoven (SN) with excellent air permeability, softness, water–oil amphiphilicity, biodegradability, and ultraviolet resistance by the wet laid process. The results showed that the uniform SN could be prepared when the alkali concentration was higher than 0.6%. The permeability of SN is higher than 80 mm/s, and the bending stiffness is lower than 0.085gf·cm2/cm. Notably, SN possesses entanglement at both fiber and fibril levels, enabling it to achieve a base strength of 0.58 MPa without additional reinforcement. The water contact angle and oil contact angle of SN were below 40° and 50°, respectively. The ultraviolet protection of SN-0.6 was classified as very good, with a degradation rate of 4.31% of SN-0.6 after 30 days of burial. The present research shows that silk nonwoven is a potential bio-based material with promising applications in the field of packaging and cleaning.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

H. Wang, L. Cao, Y. Li, R. Wen, G. Xu, "Silk Nonwoven: Recycling and Upcycling of Waste Silk into Bio-based Materials with High Value-Added Properties," Fibers and Polymers, vol. 24, no. 10, pp. 3489-3500, 2023. DOI: 10.1007/s12221-023-00258-w.

[ACM Style]

Hongchang Wang, Liyao Cao, Yuling Li, Run Wen, and Guangbiao Xu. 2023. Silk Nonwoven: Recycling and Upcycling of Waste Silk into Bio-based Materials with High Value-Added Properties. Fibers and Polymers, 24, 10, (2023), 3489-3500. DOI: 10.1007/s12221-023-00258-w.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

pISSN : 1229 - 9197
eISSN : 1875 - 0052

Impact Factor(2022): 2.5