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Structural properties of nanocomposites based on resole‐type phenol‐formaldehyde oligomers and detonation nanodiamonds
Author(s) -
Shkodich Valentina,
Temnikova Nadezhda,
Boyko Irina,
Leicht Heinrich,
Kraus Eduard,
Shkodich Natalia,
Stoyanov Oleg
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48582
Subject(s) - x ray photoelectron spectroscopy , differential scanning calorimetry , materials science , formaldehyde , oligomer , phenol , chemical engineering , polymer chemistry , phenol formaldehyde resin , infrared spectroscopy , curing (chemistry) , nanocomposite , chemistry , composite material , organic chemistry , physics , thermodynamics , engineering
Using the methods of infrared spectroscopy (IRS) and X‐ray photoelectron spectroscopy (XPS), it was shown that short‐term high‐energy machining of detonation nanodiamonds (DND) leads to structural changes in the crystal structure and functional composition of the surface layer on particles. The possibility of spontaneous formation for stable colloidal systems with a narrow size distribution of mechanically activated DND in phenol‐formaldehyde oligomers (PFO) was established. By molecular spectroscopy it was revealed that π → π* interactions of the aromatic rings of PFO are caused by orientational phenomena as a result of hydrogen bonds between an activated DND surface and functional groups of PFO. The effect of DND concentration on the curing reaction parameters ofpsgr the phenol‐formaldehyde oligomer was determined by differential scanning calorimetry (DSC). The concentration effect of mechanically activated nanodiamonds on the physical and mechanical characteristics of a composite material based on phenol‐formaldehyde binder and polyamide paper (Nomex) was studied. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48582.