A Brief Introduction to HDPE Pipeline

HDPE pipes must withstand a certain amount of pressure, and usually use PE resins with high molecular weight and good mechanical properties, such as HDPE resin. LDPE resin has low tensile strength, poor pressure resistance, poor rigidity, poor dimensional stability during molding, and difficult connection, making it unsuitable as a material for water pressure pipes. However, due to its high hygiene standards, LDPE, especially LLDPE resin, has become a commonly used material for producing drinking water pipes. LDPE and LLDPE resins have low melt viscosity, good flowability, and are easy to process, so the selection range for their melt index is also wide, usually with a MI between 0.3-3g/10min.