Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지
DOI QR코드

DOI QR Code

Mechanical Device Design for Solvent Usage Reduction for Amine Group Substitution and Production of NH2-HNT

아민기 치환 시 용매 사용량 절감을 위한 기계 장치 설계 및 NH2-HNT 제조

  • Moon il Kim (Department of Environmental administration, Catholic University in Pusan)
  • 김문일 (부산가톨릭대학교 환경행정학과)
  • Received : 2023.04.21
  • Accepted : 2023.05.26
  • Published : 2023.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Halloysite nanotube (HNT) has a nanotube structure with the chemical formula of Al2Si2O5(OH)4 · nH2O and is a natural sediment of aluminosilicate. A lot of research has been conducted to improve the mechanical properties of epoxy composites by generating interactions between HNTs and polymers through surface treatment of HNTs, such as exchange of amine group as a terminal functional group. However, most of the surface modification methods are performed under wet conditions, which require a relatively large amount of time, manpower and solvent. In order to save time and simplify complicated procedures, a dry coating machine was designed and used for amine group exchange. Comparing the XPS results, it was found that the results of NH2-HNT prepared using a dry coating machine and the substitution through the wet method were not significantly different, and it has been confirmed that the amount of solvent used and the time savings can be made.

Keywords

References

  1. Deng, S., Zhang, J., Ye, L., Wu, J., 2008, Toughening epoxies with halloysite nanotubes, Polymer, 49, 5119-5127. https://doi.org/10.1016/j.polymer.2008.09.027
  2. Du, M., Guo, B., Jia, D., 2010, Newly emerging applications of halloysite nanotubes: a review, Polym. Int., 59, 574-582. https://doi.org/10.1002/pi.2754
  3. Liu, M., Guo, B., Du, M., Lei, Y., Jia, D., 2008, Natural inorganic nanotubes reinforced epoxy resin nanocomposites, J. Poylm. Res., 15, 205-212. https://doi.org/10.1007/s10965-007-9160-4
  4. Liu, M., Jia, Z., Jia, D., Zhou, C., 2014, Recent advance in research on halloysite nanotubes-polymer nanocomposite, Prog. Polym. Sci., 39, 1498-1525. https://doi.org/10.1016/j.progpolymsci.2014.04.004
  5. Yuan, P., Southon, P. D., Liu, Z., Green, M. E. R., Hook, J. M., Antill, S. J., Kepert, C. J., 2008, Functionalization of Halloysite Clay Nanotubes by Grafting with γ-Aminopropyltriethoxysilane, J. Phys. Chem., 112, 15742-15751. https://doi.org/10.1021/jp805039u
  6. Yuan, P., Tan, D., Bergaya, F. A., 2015, Properties and applications of halloysite nanotubes: recent research advances and future prospects, Appl. Clay Sci., 112, 75-93. https://doi.org/10.1016/j.clay.2015.05.001