Lippincott NursingCenter is a leader in providing clinical and professional peer-reviewed content to nurses and can help you meet your goals, whether youâre a new nurse starting out, or a seasoned nurse looking to stay up-to-date on the latest information.
Glass is far inferior to paper, plastic and Styrofoam in terms of insulation. Thermal conductivity in terms of BTU/(feet - hour - degrees F) is 1.82 for glass, 0.09 for paper, 0.06 for Styrofoam. The conductivity of plastics varies depending on the materials: for polypropylene and polycarbonate, the thermal conductivity values are 0.69 and 0.35, respectively.
Styrofoam actually kept water warm for the longest period of time. Thermal insulation materials are used to prevent hot or cold objects from losing or gaining heat and having the same temperature as the surrounding environment. The thick sweaters that we use on cold days help keep our bodies warm.