Low density polyethylene
Thermoplastics > Polyolefins > Polyethylene
| LDPE | |
Low density polyethylene is a semicrystalline non-polar thermoplastic material, used in extreme applications for coatings, wrappers, food storage bags, heat shrink and heat shrink films, extrusion and laminate coatings, as well as for lids and closures , also for the manufacture of semi-finished products. Used in the industry in general for its versatility of uses, it has excellent electrical insulation qualities, are practically insoluble in almost all organic solvents, odorless, tasteless and physiologically indifferent. Due to its good sliding properties, it is the most used plastic for the construction of parts that are subject to mechanical friction. Due to its ultra high molecular weight it has better wear and abrasion resistance properties than high molecular weight polyethylene. |  |
Proprierties | |
| However, PE, especially LDPE, is very oxygen sensitive and has very low resistance to fats. If this material is poorly converted it releases an unpleasant odor when the extrusion temperature is very high. In addition, the LDPE is difficult to handle in the packaging machinery, mainly due to its low rigidity. |  |
Chemical properties | |
| However, PE, especially LDPE, is very oxygen sensitive and has very low resistance to fats. If this material is poorly converted it releases an unpleasant odor when the extrusion temperature is very high. In addition, the LDPE is difficult to handle in the packaging machinery, mainly due to its low rigidity. |  |