Animated video: 37 principles of chemical reactions and their dangers---Polymer foam

Thread Content

Principle: This is the reaction used to produce polyurethane foam materials; the raw materials include isocyanates, polyols, as well as additives such as blowing agents. Polyurethanes (PU) refer to a class of polymers whose main chain contains urethane functional units. They possess stable chemical properties, and their mechanical properties can be adjusted to a large extent, which enables their wide use in both industry and daily life. Polyurethane foam can be used as an insulating material. Fun fact: Just one example will show you how versatile polyurethane is – most artificial leather products on the market are made of polyurethane, and the same material is used in the most common non-latex condoms. It can also be used to make sofa cushions and shoe soles. Hazard: Low. Care should be taken to avoid inhalation and contact with skin and eyes. Polyurethane foam is quite flammable, which is why many commercial products have flame retardants added to them in advance. Recorder: MaciejMiksztowicz