What Is the Difference Between Polyethylene and Polypropylene Packaging Bags?
The production processes of polyethylene and polypropylene raw materials are relatively similar, and the products can be used to make plastic films, injection molded products, plastic pipes, etc. In many cases, the properties and uses of the two raw materials are very similar. But in fact, there are still many differences in the application of polypropylene raw materials and polyethylene raw materials, as shown in the following table: Remarks: The above comparison is based on the comparison of polypropylene and polyethylene From the perspective of heat resistance, the heat resistance of polypropylene is higher than that of polyethylene. Under normal circumstances, the melting temperature of polypropylene is about 40%-50% higher than that of polyethylene, which is about 160-170℃, so the product can Sterilize at a temperature above 100°C, and will not deform at 150°C without external force. In daily life, we will find that "5" polypropylene lunch boxes are often used to heat fo