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LDPE - low
density polyethylene
LDPE is the low density version of PE. This has less hardness,
stiffness and strength compared to HDPE, but better ductility.
It is opaque and only thin foils can be transparent.
LDPE is used for packaging like foils, trays and plastic bags
both for food and non-food purposes. Used as protective coating
on paper, textiles and other plastics, for instance in milk
cartons.
|
GRADE |
DENSITY G/CC |
MELT INDEX G/10 MIN |
Typical Applications |
| LDPE-23220(208) |
0.922 -0.924 |
21-23 |
Injection molding suitable for Toys and general purpose
articles. |
| LDPE-21018 (461) |
0.920-0.923 |
1.8-2.2 |
General purpose film , carrier bags , medium duty shrink
film. |
| LDPE-22004 (463) |
0.921-0.924 |
0.28-0.38 |
Blown film grade for Heavy duty packaging, agriculture
film . |
| LDPE-22040 (464) |
0.922+0.0015 |
3.7 – 4.3 |
Injection molding suitable for small parts and blown
film for thin film . |
| LDPE-22004C(463C) |
0.922+0.0015 |
0.34–0.40 |
Grade suitable for cable coating . |
| LDPE-22020 (461L) |
0.922 |
2 |
Grade suitable for paper and matel surface lamination.
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| LDPE-22006 |
0.922 |
0.6 |
Grade suitable for flexible small sizes tubes and thin
film for packaging.
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Product
Description
Low Density Polyethylene
Item: Low density polyethylene (LDPE)
Model No.: Primary, recycling
Molecular formula: HCOOH
Application: House wares, High gloss toys, Low thickness articles
Blown film extrusion, Lamination, Extrusion coating, Injection
molding
Specifications:
It's a low-density, cross linked, unfilled polyethylene compound
designed for medium cable insulating.
This compound has an extremely low lever of contamination. It's
recommend to use are extremely low lever of contamination. It's
recommend to use as XLPE insulation for cross linked polyethylene
Max conductor temperature: 90° C
Tensile Strength: ≥ 13.5Mpa
Elongation at Break: ≥ 350%
Brittleness temperature: ≤ -76° C
Ageing Properties (Test temperature 135° C, 168h)
Max Variation of tensile strength:
Max Variation of elongation at break: ± 20% ± 20%
Hot Set Test (200° C, 15min, 0.2MPa)
Max elongation under load:
Max permanent elongation after cooling: ≤ 100%≤ 5%
Dielectric constant (20° C, 50Hz): ≤ 2.35
Dissipation factor (20° C, 50Hz): ≤ 1.0x10(-3)
Volume Resistance (20° C): ≥ 1.0x10(16)Ω . Cm
Dielectric strength: ≥ 25Mv/m
| LDPE |
STANDARD |
STANDARD |
| Melt
Flow Rate (g/10min) (1: 21.6kg) |
0.1 |
9.0-13.0 |
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Density (g/cm 3 ) |
0.95 |
0.948-0.951 |
| Power
Ash% |
0.01 |
0.04 |
| Tensile
Strength (MPa) |
22 |
23 |
|
Elongation At Break% |
600 |
600 |
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Environmental stress-cracking |
1500 |
1500 |
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