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Investigation on the interaction mechanism between nanocellulose and adhesion RH
Author(s) -
Xu Yingni,
Gu Ju
Publication year - 2020
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6772
Subject(s) - vulcanization , x ray photoelectron spectroscopy , nanocellulose , chemistry , hydrogen bond , contact angle , fourier transform infrared spectroscopy , chemical engineering , natural rubber , polymer chemistry , materials science , composite material , organic chemistry , molecule , cellulose , engineering
A complex of resorcinol and hexamethylenetetramine (RH) was utilized to modify nanocellulose (NCC) using in‐suit solution method, where NCC was extracted from eucalyptus pulp paper with ultrasonic oxidation steps. The modified NCC was then put into vulcanized condition to simulate vulcanization process of rubber; the product was called vulcanized RH‐NCC model compound. In this paper, we study whether vulcanized conditions have influence on the interaction between RH and NCC by comparing changes of RH‐NCC model compounds before and after vulcanization. The analysis of thermogravimetry (TG), X‐Ray Diffraction (XRD), and water contact angle shows that addition of RH can improve some properties of NCC, which demonstrates well interaction between them. Fourier transform infrared (FTIR) test shows that there are no big changes before vulcanization; however, after simulated vulcanization, characteristic peaks of compound have changed a lot, illustrating that some chemical reactions have occurred. Further research on data from fitting peaks of hydrogen bonds and X‐ray photoelectron spectroscopy (XPS) analysis found that before vulcanization, mechanism between RH and NCC was mainly physical hydrogen interaction, and chemical interaction mechanism was also put forward after vulcanization.