WHAT TYPE OF GRANULES TO BUY: virgin ldpe granules OR virgin hdpe resin?

LDPE granules are Low Density Polyethylene

For polymerization of LDPE high pressure (150-300 mPa) is used. Density is within – 0.935 g/cm3, and crystal personality – from 55 to 70%. The polymer float begins at a temperature of up to 100°C, which excludes LDPE interaction with high-temperature water and steam to avoid material deformation.

By external characteristics of LDPE: elastic, heavy, brilliant, and smooth material. It is water-resistant, resistant to various chemical exposures, but contact with fat and oils should be restricted.

The properties of the produced products depend on the density of the material. LDPE densities increase the strength and hardness of the material, but then it becomes less shock resistant.

HDPE granules are low-pressure polyethylene. In international marking — High-Density Polyethylene, high-density polyethylene).

HDPE is produced at a low pressure of 20 atm at a temperature of 150°C. Compared to LDPE, it is denser (0.96 g/cm3), perfectly interacts with hot water and steam, as it softens at temperatures from 120 °C. High crystal-personality gives HDPE stiffness and strength.

HDPE has a matte texture and a small touch of hair.

HDPE is capable of such technological processes as Extrusion, extrusion, molding plastic under pressure, polymer welding, which is an undeniable advantage of working with this material.

LDPE granules are Low Density Polyethylene

The LDPE granule is suitable for production:

· electro insulation because it has dielectric properties;

· packaging materials (boxes, trays);

· hand and machine packaging films;

· spare parts, hull parts that do not interact with oils and fat.

HDPE granules are the optimal material for manufacture:

· communication pipes;

· Electrical cable insulation

· plastic tanks, barrels;

· garment and furniture equipment.

Of course, this is not a complete list of products that can be produced from pellets LDPE and HDPE.