Polycarbonate (PC) has high physical properties in terms of transparency, impact resistance, heat resistance, flame retardancy, dimensional safety, etc., and is particularly said to have an impact resistance of at least 250 times that of ordinary glass. Utilizing high impact resistance, it is used as a reinforced plastic.
Polycarbonate (PC) has transparency and can be used for optical applications, and is inexpensive compared to its high physical properties, so it is used in a wide range of fields such as medical equipment, electricity, electro-optics, aircraft, and bulletproof glass materials. However, the disadvantage is that the chemical durability is not high, especially with alkaline agents and solvents. Also, when a force exceeding the tensile strength is applied, the color changes to white and the transparency decreases.