Lignin-modified road marking paint: weathering aging studies

Abstract

The accelerated artificial aging with ultraviolet radiation, viscosity, density, no-pick-up time, flexibility, and abrasion resistance of lignin-modified road marking paint were evaluated. The addition of lignin did not cause significant changes in the physical chemistry, flexibility and no-pick-time test compared to the precursor paint. The addition of 1.00 wt. % of lignin increased the abrasion resistance by 36%. The Fourier Transform Infrared technique performed before and after exposure to Weather-o-meter aging chamber has shown the cleavage of ester groups that are present in acrylic-based resin. The incorporation of 0.10 wt.%, 0.25 wt.%, and 1.00 wt.% increased the photodegradation resistance of the road marking paint inhibiting the ester group and side-chain scissions, since the C-O and C=O band intensity increased after irradiation. The introduction of lignin delayed the yellowing of the aged samples and improved mechanical and photophysical properties besides being a good strategy for the biomass waste utilization of the paper industry.

BTX production by breaking down lignin: Current status and future prospects

“…Depending on how it is processed, it can be employed as an emulsifier, sequestrant or binder, or for dispersion. It can be found in various products ranging from paints to road treatments 14 …”

“…It can be found in various products ranging from paints to road treatments. 14 Lignin is one of the additives of lignocellulosic biomass that corresponds to about 30% of bushes/timber. This component is already quite important in pulp and paper manufacturing processes.…”