PE plastic bag performance analysis whether there is insulation function
Is there any insulation function in the performance analysis of PE plastic bags?
PE is an abbreviation of polyethylene, which is a thermoplastic resin obtained by polymerization of ethylene. Industrially, copolymers of ethylene and a small amount of an α-olefin are also included. It is a transparent plastic bag that can be used for packaging of clothing, bags, electronics, etc. We all know that the development of industry is inseparable from innovation. PE plastic bag is a polyethylene polyethylene and a polymer organic compound. It is made of ethylene and is divided into two kinds of low molecular weight and high molecular weight. The low molecular weight is generally liquid, colorless, odorless, insoluble in water, and the density is 0.92 g / cm 3, can be used as lubricants and coatings. It is corrosion resistant and has good insulation properties. Now let's explore the performance characteristics of it.
The high-density PE plastic bag has the characteristics of rigidity, hardness and mechanical strength, and can be used as a container, a pipe, or a high-frequency electrical insulating material for radar and television. It is insoluble in water and has little water absorption. It is only slightly soluble in some chemical solvents such as toluene and acetic acid at temperatures above 70 °C.
However, the particulate PVC plastic bag can be melted or solidified with a change in temperature between 15 ° C and 40 ° C. When the temperature rises, it melts and absorbs heat; when the temperature is lowered, it solidifies and releases heat. And because it has a small amount of water absorption, is not easy to be wet, and has insulating properties, it is a good building material. The particulate polyethylene is blended into the cement to make walls and floors.
Through the above explanation, we are using the characteristics of the endurance melting and exothermic solidification of the PVC plastic bag at normal temperature. When the room temperature rises, it melts and absorbs heat; when the temperature is lowered, it solidifies and releases heat. This will keep the room temperature stable. Therefore, it is a better heat storage material. According to its other characteristics, this building material also has the function of preventing leakage, heat, moisture and corrosion.
PE plastic bags have good thermal insulation, but we need long-term observation and experimentation. We must analyze its physical effects at all times.
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