DSpace Arşivi :: by Yazar "Kokten, E.S." değerine göre listeleniyor

Listeleniyor 1 - 1 / 1

Synthesis and characterization of resol type phenol-formaldehyde resin improved by SiO2-Np
(Pulp and Paper Research Institute, 2021) Özbay, G.; Kokten, E.S.; Ozcifci, A.
In this work, resol type phenol-formaldehyde (RPF) resin was modified with silicon dioxide nanoparticles (SiO2-Np). SiO2-Np was added at varying ratios from 1 to 4 wt.% to improve the bonding performance of the RPF resins. The physical characteristics of the nano-modified RPF (nano-RPF) resins were examined. The effects of modification were studied by Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). The results of FT-IR revealed that the nano-RPF resins were successfully produced by phenol, formaldehyde, and SiO2-Np. The nano-RPF resins demonstrated high thermal stability at temperatures above 500°C. The adhesive performance of the nano-RPF resins was investigated under dry and wet conditions. The nano-RPF resins indicated better adhesive performance than unmodified RPF resin. The RPF resin could be improved by SiO2-Np. © 2021 Statny Drevarsky Vyskumny Ustav. All rights reserved.