What is a better Insulator?
How good an insulator is determined by the thermal conductivity of the material.The official definition of thermal conductivity is the quantity of heat transmitted through a unit thickness in a direction normal to a surface of unit area.The ability to conduct heat is referred to as thermal conductivity.The materials with the lowest thermal conductivity are the best for insulation.
The British Thermal Unit is a unit of heat that can travel through 1 foot of material in one hour.
In terms of insulation, glass is inferior to paper, plastic, and Styrofoam.The Thermal Conductivity in feet - hour - degrees F is 0.18 for glass, 0.09 for paper, and 0.06 for Styrofoam.For polypropylene and polycarbonate, the thermal conductivity values are 0.69 and 0.35, respectively.
Paper, glass, plastic and Styrofoam are used in hot beverage containers.A glass container is the least effective for keeping a cup of coffee warm.In Austria, Spain and India, elegant glass cups are used to serve hot drinks.
People carrying coffee in paper or Styrofoam cups are a common sight.Styrofoam cups are thicker than paper ones, so they keep your coffee hot longer.Many people don't like drinking from a Styrofoam cup because it's not the most eco-friendly choice.Styrofoam does not biodegrade as fast as paper does.
Coffee travel mugs are made of plastic.Their insulative values are lower than paper.Plastic travel mugs are thicker than paper and Styrofoam cups.This improves the insulative ability of plastic mugs and makes them a safer choice in terms of driving with hot drinks.