Thermoplastic material with a linear structure with either no branching or a low degree of branching is described as high-density polyethylene or HDPE
Thermoplastic material with a linear structure with either no branching or a low degree of branching is described as high-density polyethylene or HDPE for short. HDPE granules suppliers India produced it at temperatures ranging from 70 to 300 degrees Celsius and at pressures ranging from 10 to 80 bars. It is derived from either the modification of natural gas (a mixture of methane, ethane, and propane) or the catalytic breaking of crude oil into gasoline.
Catalytic cracking of crude oil to produce gasoline; modification of natural gas to produce a mixture of methane, ethane, and propane;
Slurry polymerization and gas-phase polymerization are the two primary production methods for high-density polyethylene (HDPE).
HDPE’s Structure at the Molecular Level
The Molecular Structure of High-Density Polyethylene (HDPE)
High-density polyethylene can be bent without breaking, has a transparent or waxy appearance, is resistant to the elements, and shows tenacity even when it is very cold.
High-Density Polyethylene and its Characteristics
- HDPE has a melting point of 120-140 degrees Celsius.
- HDPE has a density ranging from 0.93 to 0.97 g/cm3.
- Having a high-density Polyethylene Resistance to chemical agents:
- Excellent resistance to most solvents
- Exceptionally high resistance to alcohols, weak acids, and alkalis
- The resistance that is only moderate against oils and greases
- Insufficient protection against hydrocarbons (aliphatic, aromatic, halogenated)
- Continuous temperature range of -50 degrees Celsius to +60 degrees Celsius, moderately rigid material with useful temperature characteristics
- Superior tensile strength in comparison to that of other types of polyethylene
- A polymer having a low cost and a high degree of processability
- Excellent resilience at low temperatures
- Outstanding capacity to insulate against electrical conductivity
- Very minimal water absorption; complies with FDA standards
Feels like HDPE is suiting your needs? Examine the following list of manufacturers
Disadvantages of HDPE
- prone to breaking under the influence of stress
- Less rigid than polypropylene in comparison
- Extreme contracting of the mold
- Poor resistance to heat and ultraviolet rays
- Welding and joining at high frequencies are not conceivable.
- On the other hand, several grades have been enhanced thoughtfully and now provide improved performance profiles.
- Check out the grades that have been developed particularly to resist environmental stress cracking (ESCR), have high stiffness, have minimal shrinkage, and are UV stabilized…
A helpful hint
If you want to narrow down your search, consider utilizing the “key feature” aspect to specify the features that are most important to you.
Examples of Uses for High-Density Polyethylene (HDPE) (HDPE)
HDPE is a material that is appropriate for use in a wide variety of applications across a variety of sectors due to its excellent mix of qualities. The following is a list of some of the most important applications for high-density polyethylene:
High-Density Polyethylene is utilized in a variety of packaging applications, including crates, trays, bottles for milk and fruit juices, caps for food packing, jerry cans, drums, industrial bulk containers, and so on. HDPE, when used in these kinds of applications, gives the finished product a respectable amount of impact strength.
Select the HDPE Grade That Is Appropriate for Packaging
Consumer Items Due to its low price and ease of processing, high-density polyethylene (HDPE) has become the material of choice for a variety of domestic and consumer goods, including garbage cans, kitchenware, ice chests, toys, and many more.
Fibers and Textiles
Since HDPE has high tensile strength, it is frequently employed in agricultural applications. For example, it is utilized in the production of ropes, fishing, and sports nets, nets, as well as industrial and ornamental textiles.
Due to its excellent resistance to chemical and hydrolysis, HDPE is used for a variety of applications aside from pipes and fittings. These applications include industrial applications, cable protection, steel pipe coating, large inspection chambers and manholes for pipe sewage, etc. Other applications of HDPE include automotive fuel tanks, wiring and cable sheeting for energy and telecommunication cables, as well as wiring and cable protection.
In general, as compared to other variants (LDPE and LLDPE), high-density polyethylene (HDPE) has a higher crystallinity (> 90 percent), which makes it stiffer but also makes it less transparent.
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