HEX 4460 PE80+ is a grade of high-density polyethylene (HDPE) that offers unique properties due to its high molecular weight and high melt viscosity. This product is produced using 1-hexene as a comonomer and is classified as PE 80+.
Key features of HEX 4460 PE80+:
- High molecular weight: This feature provides HEX 4460 PE80+ with high strength and stiffness.
- High melt viscosity: This high viscosity makes the extrusion process easier.
- Use of 1-hexene as a comonomer: 1-hexene helps to improve the environmental stress crack resistance (ESCR) and long-term hydrostatic strength of HEX 4460 PE80+.
Applications of HEX 4460 PE80+:
- Pressure pipes: HEX 4460 PE80+ is widely used for the production of pressure pipes including water pipes, gas pipes, and sewer pipes.
- Geomembrane sheets: HEX 4460 PE80+ is used for the production of geomembrane sheets which are used for insulation and drainage in civil engineering projects including dams, canals, and landfills.
- Molded parts: HEX 4460 PE80+ is used for the production of molded parts with various applications including tanks, buckets, and boxes.
Advantages of HEX 4460 PE80+:
- Excellent environmental stress crack resistance (ESCR): HEX 4460 PE80+ is highly resistant to cracking caused by environmental stresses.
- Very good long-term hydrostatic strength: HEX 4460 PE80+ is highly resistant to high internal pressures over the long term.
- Good processability: HEX 4460 PE80+ is easy to process and can be used to produce various products with different shapes and sizes.
- High chemical resistance: HEX 4460 PE80+ is resistant to a wide range of chemicals including acids, bases, and solvents.
Disadvantages of HEX 4460 PE80+:
- Price: HEX 4460 PE80+ has a higher price than other HDPE grades due to the use of 1-hexene as a comonomer.
- Limitation in food applications: HEX 4460 PE80+ is not approved for use in direct contact with food.
Conclusion:
HEX 4460 PE80+ is a grade of HDPE with high strength and toughness that is optimized for the production of pressure pipes, geomembrane sheets, and molded parts with various applications. This product offers several advantages including excellent environmental stress crack resistance (ESCR), very good long-term hydrostatic strength, good processability, and high chemical resistance due to its high molecular weight, high melt viscosity, and the use of 1-hexene as a comonomer. However, HEX 4460 PE80+ has a higher price than other HDPE grades and is not approved for use in direct contact with food.
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