HDPE Pipe Excellent Resistance To Performance

High-density polyethylene, the English name is "High Density polyethylene", referred to as "HDPE." HDPE is a kind of thermoplastic resin with high crystallinity and non-polar. The appearance of the original HDPE is milky white, a certain degree of translucent in the meager section. PE has excellent resistance to most of the properties of living and industrial chemicals. Certain types of chemicals can produce chemical corrosion,HDPE Pipe such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good water vapor resistance and can be used for packaging purposes. HDPE has good electrical properties, especially the high dielectric strength,HDPE Pipe so it is suitable for wire and cable. Medium to high molecular weight grade has excellent impact resistance, at room temperature even at -40f low temperature.

HDPE is a thermoplastic polyolefin produced by ethylene copolymerization. Although HDPE was introduced in 1956, the plastic has not reached its maturity level. This generic material is also constantly developing its new uses and markets. of thermoplastic resins. The appearance of the original HDPE is milky white, a certain degree of translucent in the meager section. PE has excellent resistance to most of the properties of living and industrial chemicals. Certain types of chemicals can produce chemical corrosion,HDPE Pipe such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good water vapor resistance.

PE can be made with a wide variety of processing methods. Includes such as sheet extrusion, film extrusion, pipe or profile extrusion, blow molding, injection molding and roll molding.

HDPE pipe is the traditional steel pipe, PVC drinking water pipe replacement products.

HDPE pipe must withstand a certain pressure, usually to choose a large molecular weight, good mechanical properties of PE resin, such as HDPE resin. The tensile strength of LDPE resin is low, the pressure is poor, the rigidity is poor, the dimensional stability is poor when forming, and the connection is difficult, which is unsuitable as the material of water supply pressure pipe. However, because of its high health index, LDPE especially LLDPE resin has become a common material for the production of drinking water pipes. LDPE, LLDPE resin melt viscosity is small, good fluidity, easy to process, so the selection of its Melt Index range is also wider, usually mi in 0.3-3g/10min.

Chemical properties

Polyethylene resistance to a variety of organic solvents,HDPE Pipe resistance to a variety of acid-base corrosion, but not antioxidant acid, such as nitric acid. Polyethylene is oxidized in an oxidizing environment.

Physical

Polyethylene can be considered transparent in a thin film state, but in the presence of massive crystals there is a strong light scattering and opacity. The degree of polyethylene crystallization is affected by the number of branches, the more the branch chain, the more difficult the crystallization. The melting temperature of polyethylene is also affected by the number of branches,HDPE Pipe which is distributed from 90 degrees Celsius to 130 degrees Celsius, the more the branch chain melts the lower the temperature. Polyethylene single crystals can usually be prepared by dissolving high density polyethylene in an environment above 130 degrees Celsius.