Polyethylene is one of the most popular general-purpose polymers. It has the most extensive uses, from hollow bottles and pipes for daily chemicals and food packaging to a large number of lightweight and soft plastic bags and films.
The polyethylene includes high-pressure low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE) and medium-density polyethylene (MDPE), with stable processing performance and a wide range of applications.
1. Low Density Polyethylene(LDPE)
|
Film Properties |
Unit |
Value |
|
Max. tensile strength MD |
MPa |
21 |
|
Max. tensile strength TD |
MPa |
20 |
|
Maximum elongation MD |
% |
600 |
|
Maximum elongation TD |
% |
750 |
|
Dart Drop Impact |
g |
95 |
|
Gloss ( 60°) |
－ |
125 |
|
Haze (40µm film) |
% |
7 |
|
Recommended Processing： |
|
|
|
Melt temperature: 150-190℃； |
Injection molding temperature: 180-260℃； |
Film thickness：15-40µm |
2.LLDPE
|
Film Properties |
Unit |
Value |
|
Haze |
% |
11 |
|
Gloss（45º） |
— |
50 |
|
Tensile Strength @ Yield |
MPa |
10月11日 |
|
Tensile Strength @ Break |
MPa |
41/35 |
|
Elongation @ Break |
% |
730/860 |
|
Dart Impact Strength |
g |
84 |
|
Blocking Strength |
g |
54 |
|
Recommended Processing： |
|
|
|
Melt temperature: 140-210℃； |
Blow film temperature:160-210℃； |
Casting film temperature: 180-260℃ |