
FT-IR and XPS studies of polyurethane-urea-imide coatings
2006年3月1日 · The FT-IR analyses of the PU-urea-imide coating films show dependence of phase separation on the nature of chain extender. Surface characterization data from AR-XPS …
Segregation and crosslinking in urea formaldehyde/epoxy resins: …
2001年12月1日 · In the current work a study is made, by high resolution XPS, of individual components of a model clear coat system based on a commercial coil coating and of the cured …
XPS survey spectra of SC-g-PAA/PAM/Urea (A1) and urea (B1), …
In this work, two urea controlled-release fertilizer types were manufactured from carnauba wax (CW), commercial granulated urea (U), and natural and sodium bentonite (Bent-R and Bent-Na ...
Angle‐resolved XPS characterization of urea formaldehyde–epoxy systems ...
2002年10月3日 · A series a coil coating primers, based on high-molecular-weight epoxy resins and a urea formaldehyde crosslinking agent, have been investigated by angle-resolved XPS …
Efficient urea electrosynthesis from carbon dioxide and nitrate via ...
2023年7月26日 · Here, a CuWO4 catalyst with native bimetallic sites achieves efficient co-reduction of carbon dioxide and nitrate to urea by stabilizing intermediates of *NO2 and *CO …
a XPS survey of Urea-CN; high-resolution C1s (b) and N1s (c) …
GCN was prepared by pyrolysis of agriculture urea precursor and characterized using XRD, UV-visible, FTIR, XPS and HRTEM techniques and observed 3D mesoporous structure.
Nitrogen-doped carbon quantum dots obtained ... - ScienceDirect
2021年8月10日 · Urea acted both as base and as N-doping source and it is a readily available and cheap reactant. The obtained samples were characterized by means of UV-vis, FT-IR and …
X-ray Photoelectron Spectroscopic Study of Some Organic and …
XPS of urea-intercalated kaolinite exhibited a significant shift of the Si 2p3/2 binding energy by 2 eV revealing the influence of NH 2 on the siloxane group, which is contrary to observations …
Organic Functionalization of Ti3C2Tx MXene for Urea Adsorption …
2024年3月15日 · The differences between these functionalized MXenes are probed using PXRD, XPS, and FTIR/Raman and solid-state 13 C MAS NMR spectroscopy, which appear to …
XPS and ToF‐SIMS Characterization of New ... - Wiley Online Library
2021年8月4日 · New, linear, segmented poly (peptide-urethane-urea) (PPUU) block copolymers are synthesized and their surface compositions are characterized with angle dependent X-ray …