LLDPE is a synthetic resin using a high pressure process via free radical polymerization of ethylene and is therefore also called "high-pressure polyethylene". Since its molecular chain has many long and short branches, LLDPE is less crystalline than high-density polyethylene (HDPE) and its density is lower. It features light, flexible, good freezing resistance and impact resistance. LLDPE is chemically stable. It has good resistance to acids (except strongly oxidizing acids), alkali, salt, excellent electrical insulation properties. Its vapor penetration rate is low.LLDPE has high fluidity and good processability. It is suitable for being used in all types of thermoplastic processing processes,such as injection molding, extrusion molding, blow molding, rotomolding, coating, foaming, thermoforming, hot-jet welding and thermal welding.
| Grades | LLDPE-7149U | MLPE-8060 | LLDPE7144 | LLDPE8916 |
| (2.16kg,190ºC)Melt mass-flow rate,g/10min | 4 | 5 | 20 | 16 |
| Density,g/cm³ | 0.934 | 0.936 | 0.924 | 0.954 |
| Tensile stress at yield,MPa | 12 | 10 | 12 | 20 |
| Tensile stress at break,MPa | 10 | - | 8 | 8 |
| Fish eyes(0.8mm),qty/1520cm² | - | - | - | - |
| Fish eyes(0.4mm),qty/1520cm² | - | - | - | - |
| Haze,% | - | - | - | - |
| Drop-weight dart impact damage,g | - | - | - | - |
| Norminal Tensile Strain At Break,% | - | - | 300 | 100 |
| (210ºC,Al)oxidation induction time,min | - | - | - | - |
| Application | rotationally-molding products | rotationally-molding products | household articles, such as plastic barrels, reusable plastic containers and large injection-molded | household articles, such as plastic barrels, reusable plastic containers and large injection-mold |
| Grades | LLDPE-222W | LLDPE-DFDA7042 | LLDPE-DFDA9047 | LLDPE-DFDA9085 |
| (2.16kg,190ºC)Melt mass-flow rate,g/10min | 1.86 | 1.99 | 0.78 | 0.89 |
| Density,g/cm³ | 0.922 | 0.92 | 0.918 | 0.9196 |
| Tensile stress at yield,MPa | 10.3 | 9.47 | 9.37 | 11.2 |
| Tensile stress at break,MPa | 21 | 14.8 | 24.4 | 24.7 |
| Fish eyes(0.8mm),qty/1520cm² | 2 | 0 | 0 | 1 |
| Fish eyes(0.4mm),qty/1520cm² | 11 | 0 | 0 | 9 |
| Haze,% | 16.3 | 22.1 | 20.6 | 10.1 |
| Drop-weight dart impact damage,g | 116 | - | - | 122 |
| Norminal Tensile Strain At Break,% | - | 451 | 804 | 824 |
| (210ºC,Al)oxidation induction time,min | - | - | 18.4 | - |
| Application | Film | Film | Film | Film |
