PEHD 300 naturel - TECAFINE PE300 natural

 

1. What is PEHD material?

PEHD, short for High Density Polyethylene, is a thermoplastic polymer produced by the polymerization of ethylene under specific conditions and with the aid of a catalyst. It appears as opaque white wax-like granules with a semi-transparent cross-section. This material is lightweight, flexible, and resilient, non-toxic and odorless, with excellent rigidity, toughness, mechanical strength, and solvent resistance. Its molding temperature range is 180–250°C, with a melting point of approximately 130°C and a density between 0.941 and 0.960.

 

2. Application areas of PEHD

Due to its outstanding physical and chemical properties, PEHD is widely used across various industries. For example, in the packaging industry, it is commonly used to manufacture packaging films and plastic bags; in the fishing industry, it is used to make fishing nets; additionally, it is used to produce plastic boxes, pallet boxes, and extruded blow-molded containers. Furthermore, due to its high strength and wear resistance, it is also used to manufacture various mechanical parts and engineering components.

 

III. Is PEHD a food-grade material?

PEHD is indeed a food-grade material. Food-grade plastics refer to materials that meet national food safety standards and do not produce toxic substances during use. As a type of high-density polyethylene, PEHD is not only non-toxic and odorless but also maintains good stability and durability at specific molding temperatures, making it highly suitable for food packaging and containers that come into contact with food. In practical applications, many standard food-grade plastic bags are made from PEHD material and bear the QS certification mark to prove compliance with food safety standards.

 

4. What are the differences between PEHD and other polyethylene materials?

Although PEHD is a type of polyethylene (PE), it differs from other polyethylene materials in terms of performance and application. For example, low-density polyethylene (LDPE) is also commonly used in food packaging, but it has relatively lower density and strength; linear low-density polyethylene (LLDPE), on the other hand, excels in tensile performance and impact resistance. In contrast, PEHD plays a significant role in more fields due to its high density and strength characteristics.

 

5. Conclusion

In summary, PEHD is a high-performance thermoplastic material that not only possesses excellent physical and chemical properties but also meets the standards for food-grade materials. Its wide range of applications and outstanding performance have established PEHD as a key player in the plastics industry.