Structural properties of nanocomposites based on resole‐type phenol‐formaldehyde oligomers and detonation nanodiamonds

Abstract

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 phenolformaldehyde 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.

A Sustainable Hydroxypropyl Cellulose-Nanodiamond Composite for Flexible Electronic Applications

“…The DND particles demonstrated a number of attractive properties, such as thermal conductivity, thermal and chemical stability, abrasiveness, hardness and low electrical conductivity [ 23 ]. As regards nanocomposite materials, studies have been devoted to the insertion of DND within polymeric matrices, such as conducting polymers, elastomers, perfluorocarbons, polysiloxanes, polyurethanes, polyimides, and rubbers, to produce new advanced hybrid multifunctional materials [ 24 , 25 , 26 ].…”