Linear LD Polyethylene
Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins. Linear low-density polyethylene differs structurally from conventional low-density polyethylene (LDPE) because of the absence of long chain branching. The linearity of LLDPE results from the different manufacturing processes of LLDPE and LDPE. In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher alpha-olefins as butene, hexene, or octene. The copolymerization process produces an LLDPE polymer that has a narrower molecular weight distribution than conventional LDPE and in combination with the linear structure, significantly different rheological properties.
LLDPE Benefits
- Versatile and cost effective
- Lower seal initiation temperature balanced with mechanical properties
- Can reduce costs in high-performance structures
Linear LD Polyethylene Grades
| Products | MFI (g/10min) | Nominal Density (g/cm3) | Additives |
| HF2020 | 2 | 0.920 | Antioxidant |
| HF2110 | 1 | 0.921 | Antioxidant |
| HF2308E | 0.8 | 0.923 | Antioxidant, Low Antiblock |
| HF2410M | 1 | 0.924 | Antioxidant, Medium Antiblock, Medium Slip |
| HM2420 | 20 | 0.924 | |
| HR3935 | 3.5 | 0.939 | |
| HR3935U | 3.5 | 0.939 | UV Stabiliser |
| HR3950U | 5 | 0.939 | UV Stabiliser |
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