When we buy goods online, we often see air cushion films used to pack goods, which are a kind of plastic paper with air. We always thought that it was just a kind of packaging material. In fact, it can also be used for heat insulation. Oh, insulation materials.
The air cushion film is made of polyethylene and other materials through a special process. It has good shock absorption, impact resistance, heat sealability, etc. At the same time, it can prevent moisture and corrosion and has a wide range of uses. Because it is filled with air, it can block the entry of water vapor and it is not easy to absorb heat, so it can be used as a thermal insulation material for building exterior walls. At the same time, because it is not easy to ventilate, it can ensure that the indoor heat will not easily diffuse into the outdoors, the indoor low temperature in summer, the indoor warmth in winter, and a feeling of warm winter and cool summer. This is what it does when used as a thermal insulation material.
Nothing is purely a function, we can fully explore its other functions according to its characteristics, air cushion film is such an example.
