HD249P
  • HD249PHD249P

HD249P

HD249P is designed for hydrogen storage is a high density polyethylene modified powder with high strength, high toughness and low shrinkage.

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Product Description

HD249P is designed for hydrogen storage is a high density polyethylene modified powder with high strength, high toughness and low shrinkage.


Forms
● Commercial:active
Availability
● AS
Additive
● HS、UV、MRA
Features
● High Rigidity ● Low Shrinkage
Uses
● Hydrogen Cylinder ● Shell ● Box
Agency Ratings
● RoHS ● FDA
Packaging
● 20Kg / packaging
Shelf Life
● 1 years from the date of production


Inspection Items Measured
Value
Unit Standard
Physical Properties
Density 0.946 g/cm3 GB/T 1033.1
Bulk Density 0.400 g/cm3 GB/T 1636
Dry Flow Rate 25 s/100g GB/T 40934
30 Mesh Residue 1.2 % ASTM D1921
Melt Index (190℃,2.16Kg) 4.0 g/10min GB/T 3682.1
Melting Point 132 GB/T 19466.3
Crystallinity 60 % GB/T 19466.3
Hydrogen Permeability 15℃ 6.4x10-16 mol·m/㎡2·s·Pa GB/T 42610
55℃ 2.0x10-15
Contraction Rate Rectilinear segment 3.0 % /
diameter 1.5 % /
Mechanical
Shore Hardness D 1 68 / GB/T 2411
D 15 63
(50mm/min) 90℃ 9 MPa GB/T 4010


Inspection Items Measured
Value
Unit Standard
Tensile Strength at Yield 23℃ 22
-55℃ 41
(50mm/min)

Tensile Elongation at Yield

90℃ 700 % GB/T 4010
23℃ 200
-55℃ 30
(50mm/min),23℃
Tensile Modulus of Elasticity
1000 MPa GB/T 4010
Poisson's ratio 0.46 / GB/T 4010
(2mm/min)
Flexural Strength
24 MPa GB/T 9341
2mm/min)
Flexural Modulus
980 MPa GB/T 9341
Impact Strength (-40℃) 25 J/mm GB/T 39933
Thermal
Deflection
Temperature (0.45MPa)
78 GB/T 1634.2

Vicat Softening Point (1 Kg)

120 GB/T 1633
Other
Surface Resistivity 10 17 Ω IEC 60093
Flame Retardant HB LEVEL UL-94

molding.

This guide data is typical of the brand product data, and can not be used as indicators of supplier

quality assurance.


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