Productname:helium-filled stratospheric balloon film
ItemNo:PAGZ
Feature: higher barrierof helium
light weight
heat welding
Application: special balloons ,higher barrier balloons ,airship etc
Itemstandard
Standard
Testvalue
Testresult
Appearance
strips
Notallowed
Sunlightlamp
Qualified
wrinkles
Notallowed
Visualinspection
Qualified
Impuritiespollution
Notallowed
Visualinspection
Qualified
Sectionflatness
≤2mm
1
Qualified
Airbubblefracture
Notallowed
Visualinspection
Qualified
Joints
≥3000mallowonejointredasremark
Visualinspection
Qualified
pinholes
≤0pc/100cm2
0
Qualified
basefilmthickness
d-3%*d17u
17
Qualified
Physical
property
g/m²
24g/m²±2g
25
Qualified
Heatshrinkage
MD≤1.1
TD≤0.3
MD0.5
TD0.2
Qualified
GB/12026-2000
Elogationatbreak
MD≥280
TD≥260
MD378
TD331
Qualified
Tensionstrength
MD≥420
TD≥410
MD532
TD612
Qualified
GB/T13022
Slivercoating
±20%
98%
Qualified
Silvercoatingthickness
≥17nm
17
Qualified
Silvercoating
≤8%peeloffarea
2
Qualified
Surface
property
Reflectiverate
Backside≥81
Frontside≥93
82
94
Qualified
Temperatureresistance(36h)
Lowtemp≥-40℃
Hightemp≥150℃
-60
210
Qualified
Scratchresistance
Surfacenopeeloff
non
Qualified
Materialscompenent
coextrusionstructure
PA+PI+PA6+Altotalthickness17u
co extrusion BOPA film for balloons: