|
Comparation between PP,PE |
 |
 |
 |
|
Compared items/other hollow sheet
|
PP
|
PE
|
EVA
|
Mixed with PP and PE
|
|
Impact strength
|
high
|
Above normal
|
high
|
Above normal
|
|
Tear strength
|
good
|
good
|
Very good
|
good
|
|
Rigidity
|
good
|
Above normal
|
Above normal
|
good
|
|
Tenacity
|
good
|
Above normal
|
Very good
|
good
|
|
Chemical stability
|
good
|
Above normal
|
Easily be hydrolyzed in the alkaline environments
|
Above normal
|
|
Lighting
|
Above normal
|
normal
|
Very good
|
normal
|
|
Weather resistance
|
Above normal
|
normal
|
Below normal
|
normal
|
|
Low-temperature resistance
|
normal
|
Very good
|
Above normal
|
Above normal
|
|
High-temperature resistance
|
good
|
Below normal
|
normal
|
Above normal
|
|
Aging resistance
|
Above normal (with additive)
|
Above normal(with additive)l
|
Above normal(with additive)
|
(with additive)Above normal
|
|
Water proof
|
Above normal
|
good
|
Below normal
|
Above normal
|
|
Corrosion preventive
|
Above normal
|
Above normal
|
normal
|
Above normal
|
|
Adhesion to surface(printing properties)
|
easy
|
normal
|
easy
|
normal
|
|
Mixed with other material
|
good
|
normal
|
good
|
Above normal
|
|
Welding
|
normal
|
Above normal
|
good
|
Above normal
|
|
Molding shrinkage
|
normal
|
High and clear direction
|
normal
|
normal
|
|
Cost
|
low
|
Above normal
|
high
|
Above normal
|
|
Density
|
|
Hollow Plastics Sheet