Study on Degradation Mechanism of Carbon Fiber-reinforced Anhydride-cured Resin-based Matrix Composites by a Benzyl Alcohol/NaOH System 


Vol. 23,  No. 11, pp. 3188-3196, Nov.  2022
10.1007/s12221-022-0239-7


PDF
  Abstract

In recent years, with the increasing demand for carbon fiber-reinforced polymer (CFRP), the recycling of its waste has become a serious problem that restricts the wider application of CFRP. This study used a benzyl alcohol/NaOH system at atmospheric pressure to degrade the CFRP of epoxy-resin matrix cured by anhydride, and the influence of NaOH dosage on degradation rate was investigated. The degradation mechanism of the resin was analyzed using Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry and Electro-Spray Ionization-Mass Spectroscopy. The structure and properties of the recycled carbon fibers were characterized using scanning electron microscopy, X-ray photoelectron spectroscopy and a monofilament tensile strength test. The experimental results indicated that the benzyloxy nucleophilic group produced by benzyl alcohol in alkaline conditions selectively attacked the cross-linking ester bond of the resin and broke the c ross-linking point. Finally, the resin was degraded by removing the curing agent. When the m ass ratio of NaOH to CFRP (w(NaOH):w(CFRP)) was not under 1:1 and the reaction conditions were 190

  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]

Z. Si, Z. Sun, L. Ye, A. Gao, Y. Wang, "Study on Degradation Mechanism of Carbon Fiber-reinforced Anhydride-cured Resin-based Matrix Composites by a Benzyl Alcohol/NaOH System," Fibers and Polymers, vol. 23, no. 11, pp. 3188-3196, 2022. DOI: 10.1007/s12221-022-0239-7.

[ACM Style]

Zhong-yu Si, Zhong-xiao Sun, Lian-wei Ye, Ai-jun Gao, and Yu Wang. 2022. Study on Degradation Mechanism of Carbon Fiber-reinforced Anhydride-cured Resin-based Matrix Composites by a Benzyl Alcohol/NaOH System. Fibers and Polymers, 23, 11, (2022), 3188-3196. DOI: 10.1007/s12221-022-0239-7.

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