2025 Poster Session

In this research, the solvents that affect the wood that forms the different layers of plywood panels that were held together by polymers were studied. Therefore, it is necessary to remove the old polymer that had deteriorated. Their role in dissolving the new polymer, which will be used for gluing the layers of plywood and replacing the old, damaged polymer, was also studied, Some polymers that are used as consolidating materials can be used to glue old plywood. 

Polymers are divided according to many characteristics such as chemical composition, origin of polymers, type of hardening, and application method. The use of polymers is mostly based on the origin of the adhesive (organic, inorganic) or its chemical nature (natural, semi-synthetic, synthetic). 

The research includes a comparative experimental study to evaluate the performance of some organic solvents and polymers in treating and maintaining plywood to determine which is most suitable for later use. The thesis is composed of three chapters as follows:

The first chapter includes the factors that led to damage the plywood from various environmental factors and the visible and invisible shapes of damage that occurred as a result of them.

The second chapter includes an experimental study to evaluate the polymers chosen for testing and perform various aging processes on them. It also includes a study on the effect of solvents that were applied on wooden veneer samples.

The experimental samples were glued together using the chosen polymers and were mechanically tested. Color measurements were applied to further evaluate the treatment, and results were compared with the FTIR analyses conducted on the samples.

In the third chapter, after having reached a conclusion in the previous chapter, the most appropriate materials were applied on the plywood of the Brake Carriage at the Royal Carriage Museum in Boulak, Cairo.

Keywords:

plywood, wood veneer, polymers, nanocellulose, infrared spectrum, royal horse carriages, urea formaldehyde, white spirit.