Kuangchan zonghe liyong (Apr 2024)

C-CNF Surface Modified Tourmaline and its Dispersion Stability

  • Baobao PANG,
  • Yingmo HU,
  • Zhen ZHANG,
  • Kui CUI,
  • Shasha WU,
  • Sufang GUO

DOI
https://doi.org/10.3969/j.issn.1000-6532.2024.02.016
Journal volume & issue
Vol. 45, no. 2
pp. 100 – 104

Abstract

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This is an article in the field of mineral processing engineering. Tourmaline has been widely used for its spontaneous polarity, pyroelectric effect, far-infrared radiation and negative-ion release effect. In order to increase its stability in water-based coatings and improve its performance in water-based coatings, in this work, the surface modification of tourmaline with carboxylated nanolocellulose (C-CNF) was studied and optimized. The test results show that the performance of modified tourmaline was optimal while the addition of C-CNF was 2 g, solid-to-liquid ratio 1:5, and reacted 2h at 50 ℃, its turbidity reached 1361 ntu, contact angle to 53o. It was found that C-CNF was successfully grafted to the tourmaline surface by means of characterization of the modified tourmaline, and the dispersion of the modified tourmaline in the aqueous medium was better improved.

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