Sabic 218WJ LLDPE Film Excellent Processability and Strength

Material properties

Chemical composition: It belongs to butene linear low-density polyethylene resin, and the additive package is generally designed for a wider range of food applications (TNPP-free). It has good thermal stability and can be used under critical extrusion processing conditions.

Physical properties: The density is 0.918g/cm³ and the melt flow rate is 2.0g/10min. The film thickness can be as low as 30 microns, the haze is 13%, and the gloss is 80% (45°), with certain transparency and gloss.

Mechanical properties: The film has good tensile properties, with yield tensile strength MD of 12.0MPa and TD of 10.0MPa; tensile strength at break MD of 35.0MPa and TD of 29.0MPa; elongation at break MD of 700% and TD of 750%.

Elmendorf tear strength MD of 130g and TD of 320g, the total energy of dart impact is 630J/cm, and the puncture resistance and impact resistance are good.

Processing performance: The material is easy to process and can maintain good stability at higher processing temperatures. It is suitable for a variety of processing technologies such as blown film and cast film.

The film has good heat sealing properties. As long as a certain sealing temperature is reached, it has good heat sealing strength and strong anti-pollution ability.

Other features: Contains lubricants and anti-adhesives, which can reduce the friction coefficient of the film surface, make the film easy to slide between layers, improve the opening, and prevent the film from sticking, making it easier for subsequent processing and use.

Application areas

Packaging field: It is suitable for various food packaging, such as laminated film, barrier film, etc., which can effectively protect the quality of food.

It can also be used for industrial packaging, such as cling film and stretch film for manual and tray packaging, as well as shopping bags, garbage bags, general packaging films, etc. With its high strength and good processing performance, it can meet different packaging needs.

Other fields: It is also used in wire and cable extrusion. It can be used for sheathing of telecommunications and power cables (LV, MV, HV), halogen-free flame retardant compounds, and one-step or two-step silane cross-linkable cable insulation.

Storage and transportation

Environmental conditions: It should be stored in a dry, well-ventilated environment, avoiding moisture and high temperature.

A high humidity environment may cause the material to absorb moisture, resulting in defects such as bubbles during processing; a high temperature environment may cause the material to soften, deform, or even age prematurely.

Avoid exposure to the sun: During transportation and storage, prevent the material from being directly exposed to sunlight. Ultraviolet rays will accelerate the aging of the material and reduce the performance of the film, such as becoming brittle and reducing tensile strength.

Prevent heavy pressure: The film made of this material is usually thin and easily deformed by extrusion. When stacking and transporting, avoid heavy objects to avoid damage to the film and affect its performance.