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Polyethylene - Low Density ( LDPE ) - Film   -   Material Information


Buy Polyethylene - Low Density Film on-line

We stock and supply the following standard forms:
Fiber Film Granule Powder Rod Sheet Sphere Tube
Fiber Film Granule Powder Rod Sheet Sphere Tube
Common Brand Names:
Alkathene, Carlona, Lacqtene, Lupolen, Stamylan LD
 
General Description:  

Polyethylenes General A family of closely related commodity thermoplastics that are manufactured in large volumes in a very wide range of grades. Traditionally differentiated by their density (a good measure of degree of crystallinity), from a scientist's point of view the better distinction is the degree of chain branching. The first polyethylene, later called LDPE, was and is made by a high pressure process using a free radical initiator/catalyst and is a polymer with a high degree of chain branching. Subsequently low pressure processes using Ziegler-Natta or related catalysts were developed which produce a much more linear molecule and generally higher crystallinities. These were and are called high density polyethylene (HDPE); this technology is now used to make a family of (chemically) closely related PE's all of which are linear - ULDPE (ultra low density ..), LLDPE (linear low ...), MDPE (medium ...), HMWPE (high molecular weight ..) and UHMWPE (ultra high molecular weight ..). On the other hand, PE copolymers (e.g. with vinyl acetate or acrylates) are normally branched polymers.

General Description : A semi-crystalline (typically around 50%), whitish, semi-opaque commodity thermoplastic that is soft, flexible and tough - even at low temperatures - with outstanding electrical properties but poor temperature resistance. It also has very good chemical resistance but is prone to environmental stress cracking; it has poor UV resistance (unless modified) and poor barrier properties, except to water.

Applications include containers, chemically resistant linings, films (which are transparent if thin) for packaging etc. and electrical/electronic applications including cable insulation and cores in UHF cables.

   
 

   

Technical Data for   Polyethylene---Low-Density


Polyethylene Low Density Film - Standard Products   Click here to display prices
ET311115Polyethylene - Low Density Film,    
Thickness:0.015mm
ET311126Polyethylene - Low Density Film,    
Thickness:0.025mm, Coil width:600mm
ET311130Polyethylene - Low Density Film,    
Thickness:0.03mm
ET311135Polyethylene - Low Density Film,    
Thickness:0.035mm
 
ET311150Polyethylene - Low Density Film,    
Thickness:0.05mm
ET311151Polyethylene - Low Density Film,    
Thickness:0.05mm, Condition:Additive free polymer
ET311163Polyethylene - Low Density Film,    
Thickness:0.063mm
ET311201Polyethylene - Low Density Film,    
Thickness:0.1mm, Condition:Additive free polymer
ET311250Polyethylene - Low Density Film,    
Thickness:0.125mm
 
ET311251Polyethylene - Low Density Film,    
Thickness:0.15mm, Condition:Additive free polymer
ET311300Polyethylene - Low Density Film,    
Thickness:0.2mm
ET311301Polyethylene - Low Density Film,    
Thickness:0.18mm, Condition:Additive free polymer
ET311350Polyethylene - Low Density Film,    
Thickness:0.25mm
ET311351Polyethylene - Low Density Film,    
Thickness:0.23mm, Condition:Additive free polymer
 
ET311452Polyethylene - Low Density Film,    
Thickness:0.5mm, Color:Colorless
ET311470Polyethylene - Low Density Film,    
Thickness:0.75mm, Color:Colorless
Polyethylene Low Density Film - Standard Products   Click here to display prices

Properties for Polyethylene - Low Density Film

Property Value
Dielectric Strength @25µm thick kV mm-1 200
Dissipation Factor @1MHz 0.0003
Elongation at Break % 100-700
Heat-sealing Temperature C 120-204
Initial Tear Strength g µm-1 1.2-10.3
Permeability to Carbon Dioxide @25C x10-13 cm3. cm cm-2 s-1 Pa-1 10
Permeability to Hydrogen @25C x10-13 cm3. cm cm-2 s-1 Pa-1 8
Permeability to Nitrogen @25C x10-13 cm3. cm cm-2 s-1 Pa-1 0.7
Permeability to Oxygen @25C x10-13 cm3. cm cm-2 s-1 Pa-1 2
Permeability to Water @25C x10-13 cm3. cm cm-2 s-1 Pa-1 70
Permeability to Water @38C x10-13 cm3. cm cm-2 s-1 Pa-1 120

We stock and supply the following standard forms:
Fiber Film Granule Powder Rod Sheet Sphere Tube
Fiber Film Granule Powder Rod Sheet Sphere Tube

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