Identify a plastic part or product at home school or work th

Identify a plastic part or product at home, school, or work that is used below its glass transition temperature, T_G, and tell me what you think the temperature range is that it was designed to function in. Also, identify a part or product that must function above it\'s T_G. No duplicates please

Solution

Thermoplastic or thermo softening polymers are used below their glass transition temperature such as acrylics/ soap cases/ glass they are homogeneous and amorphous. They show different characteristics above their glass transition temperature and below their melting point. Thermosetting polymers such as rubber, shoe etc are used above their glass transition temperature.