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测试项目 Item | 测试方法 Testing Methods | 单位 Unit | 典型值 Typical Values | ||||
VPLA | PLA-AlOx | ||||||
厚度 Thickness | GB/T6672 | μm | 40 | 25 | |||
铝层厚度 Al Thickness | GB/T15717 | OD | 2.0 | - | |||
密度 Density | GB/T 1033.1-2008 | g/cm3 | 1.26 | 1.26 | |||
湿润张力 Surface Tension | GB/T14216-2008 | mN/m | 44 | 44 | |||
热封强度 The intensity of heat sealing | 85℃/80℃/135kpa/2S | mN/m | 7.5 | 7.2 | |||
镀层附着力 Al Adhesion | 3M600胶带Tape | % | Grade 1 | Grade 1 | |||
拉伸强度 Tensile Strength | 纵向 MD | GB/T 1040.3 | Mpa | 117 | 108 | ||
横向 TD | 126 | 150 | |||||
断裂伸长率 Elongation at Break | 纵向 MD | GB/T 1040.3 | Mpa | 120 | 127 | ||
横向 TD | 101 | 87 | |||||
热收缩率 Heat Shrinkage | 纵向 MD | 100℃/10mins | % | 4.0 | 4.1 | ||
横向 TD | 1.2 | 3.1 | |||||
透氧率 OTR | ASTM D-3985 | cc/㎡·24h | 15 | 20 | |||
透湿率 WVTR | ASTM F-1249 | g/㎡·24h | 10 | 15 | |||












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