In the study walnut shells (WS) and silanized walnut shells (S_WS) were used as cellulosic
fillers for novel polyurethane (PU) composite foams. The impact of 1, 2 and 5 wt% of WS and …

Polyurethane foams are materials characterized by low density and thermal conductivity and
can therefore be used as thermal insulation materials. They are synthesized from toxic and …

Rigid polyurethane (PU) foams were successfully filled with different weight ratios of
melamine (1 wt%, 5 wt%, 10 wt%), silica (0.1 wt%) and ionic liquid, 1-Ethyl-3 …

Polyurethane (PU) composite foams were successfully reinforced with different
concentrations (1 wt%, 2 wt%, 5 wt%) of nutmeg filler. The effect of nutmeg filler …

Increasing emphasis on the circular economy is driving the development of environmentally
friendly rigid polyurethane foams (RPUFs). In this work, polyurethane foams were altered …

Among different organic fillers, the chemical composition of Syzygium aromaticum,
commonly known as cloves, has great potential as a sustainable reinforcement for polymeric …

Towards the irreversible increase of energy demands, the development of non-fossil, bio-
renewable, and sustainable resources has become a necessary and important strategy …

Currently, there is great demand to implement circular economy principles and motivate
producers of building materials to integrate into a closed loop supply chain system and …

Recently, to improve the properties, reduce the amount of polymeric materials, the time of
disposal in landfills and the cost of composite parts, the incorporation of vegetal biomass …

The study involved the production of rigid plastics by crosslinking vanillin-hexanediamine
(VH) with epoxidized soybean oil (ESO) through an open ring reaction, resulting in the …