HDPE PE 100

In recent years, plastic pipes have been popularized in construction and municipal water supply and drainage, gas, wire and cable casings, industrial pipes, farmland drainage and irrigation pipes and other fields. HDPE pipes are the preferred material for gas pipes and water supply pipes due to their low friction coefficient, low temperature resistance, good toughness, good insulation properties, corrosion resistance, and good resistance to slow crack growth.

PE100 pipe resin is called the third generation polyethylene (PE) pipe resin. At present, the special resin for PE100 grade pipes is mainly bimodal HDPE, whose relative molecular weight has a bimodal distribution. The low molecular weight part provides better processing performance, and the high relative molecular weight part provides better mechanical properties.

The special resin for PE100 grade and above high-pressure pipes has greatly improved transportation safety and transportation capacity by virtue of its excellent rapid crack propagation (RCP) resistance, slow crack growth (SCG) resistance and excellent long-term stability. , widely used in water supply, drainage and gas fields.

PE 100 polyethylene pipe is one of the newest and best polyethylene materials with unique physical and operational properties, allowing it to withstand greater pressures due to greater density, lighter weight and thickness. HDPE PE100 actually solves the problem of polyethylene pipes and fittings because it is UV resistant.

Polyethylene pipes produced from PE100 grade materials are relatively lighter and stronger than other grades of polyethylene materials, making them cost-effective as well. Polyethylene pipe produced from these materials will be lighter than the same pipe produced from lower grade materials.

One of the distinguishing features of PE 100 resin is its excellent mechanical properties. Features high tensile strength and excellent impact resistance to withstand harsh working conditions, including extreme temperatures and corrosive environments. Additionally, its inherent flexibility and ductility enable it to adapt to dynamic stresses without compromising performance, making it the material of choice for structural applications.

Another significant benefit of PE 100 resin is its excellent chemical and abrasion resistance. This elastomeric material maintains its integrity regardless of exposure to acids, bases or solvents, providing long-term reliability and peace of mind to manufacturers in industries such as agriculture, construction and water management.

Additionally, PE 100 resin is known for its light weight and ease of processing. Its low density and melt flow properties facilitate efficient production processes, resulting in cost savings and increased productivity for manufacturers. Whether extruded, molded or welded, PE 100 resin is suitable for a variety of processing techniques, enabling the creation of complex geometries and custom components.

Of all the properties required for PE100, when we consider pipe surface defects and stress concentrations on complex-shaped pipe fittings, the most important for pipe life should be resistance to slow crack growth (SCG). Large-diameter, thick-walled pipes have increasingly higher requirements for high working pressure and rapid crack propagation (RCP) without dents. The continuous improvement of resin performance will help the continuous expansion of PE pipes, meet new and more demanding installation methods, and help improve the safety margin of PE pipe systems.

In addition to SCG, rapid crack propagation (RCP) requirements for high working pressure and dent-free performance are also increasingly high for large-diameter thick-walled pipes.

Another important factor in the development of PE 100 resins is the ability to resist oxidative degradation over long periods of time. Polyethylene pipes are affected by natural factors such as light, oxygen, and moisture in the environment. They gradually age and their performance gradually decreases, thus affecting their service life.

HDPE pipes generally need to be able to be used for a long time, and one of the important indicators is slow crack growth (SCG) resistance. The molecular weight and distribution, short chain branch content and distribution are important factors affecting the SCG resistance of PE 100.

PE 100 Black is a black-colored HDPE resin, which is generally used for the production of drinking water pipes, gas pipes, industrial pipes and fittings.

Internationally, PE pipe raw materials are generally divided into five grades, PE32, PE40, PE63, PE80, and PE100. The main materials used in PE gas pipes and PE water supply pipes are PE80 and PE100.

PE 80 refers to grade 80 HDPE resin. The maximum pressure for extruding PE water supply pipes is 1.25 MPa.

PE 100 refers to grade 100 HDPE resin, and the maximum pressure of extruded PE water supply pipes is 1.6 MPa.

PE 80 has a lower density level than PE 100. Most of the PE water supply pipes on the market currently use HDPE PE 100.   

The tensile properties are different. The tensile strength of PE 100 is 20% higher than that of PE 80.

The impact resistance of PE 100 water supply pipe is better than that of PE 80.

The bending performance of the PE 100 pipe bending mold is 20% higher than that of the PE 80 pipe bending mold. 

PE 80 resin has strong toughness and is suitable for manufacturing small diameter PE water supply pipes. Most of the products produced are small and medium diameter PE water supply pipe coils.

PE 100 resin has the characteristics of low environmental protection requirements and wide application fields. It occupies a dominant position in the market. It is suitable for various construction environments and has high pressure-bearing capacity. Most of them are medium and large diameter PE water supply pipes.

The load-bearing capacity of PE 100 pipe is higher than that of PE 80.

The anti-aging corrosion ability of PE 100 is higher than that of PE 80.