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材料 >> 聚合物材料
聚乙烯,低密度,球体, LDPE, Natural, 31mm直径
聚乙烯,低密度,球体, LDPE, Natural, 31mm直径图片
品牌: Goodfellow
产地: 英国
索取资料及报价
品牌:Goodfellow
产地:英国
产品介绍
订货号包装规格
444-518-281 Piece
508-908-552 Piece
550-914-715 Piece
989-867-7410 Piece

产品参数

Colour[颜色]Natural
Diameter[直径]31mm
Quantity[数量]1 Piece - 10 Piece
Chemical Resistance(耐化学性)
Acids - concentratedGood-Fair
Acids - diluteGood
AlcoholsGood
AlkalisGood
Aromatic hydrocarbonsFair-Poor
Greases and OilsGood-Fair
Halogenated HydrocarbonsFair-Poor
HalogensFair-Poor
KetonesGood-Fair
Physical Properties(物理性质)
Density ( g cm⁻³ )0.920
FlammabilityHB
Limiting oxygen index ( % )17
Radiation resistanceFair
Refractive index1.510
Resistance to Ultra-violetPoor
Water absorption - over 24 hours ( % )< 0.015
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )100.000 - 200.000
Heat-deflection temperature - 0.45MPa ( C )50
Heat-deflection temperature - 1.8MPa ( C )35.0
Lower working temperature ( C )-60
Specific heat ( J K⁻¹ kg⁻¹ )1900.0 - 2300.0
Thermal conductivity ( W m⁻¹ K⁻¹ )0.33 @23℃
Upper working temperature ( C )50 - 90
Mechanical Properties(机械性能)
Elongation at break ( % )400.0
Hardness - RockwellD41-46-Shore
Izod impact strength ( J m⁻¹ )> 1000.0
Tensile modulus ( GPa )0.10 - 0.30
Tensile strength ( MPa )5.00 - 25.00
Electrical Properties(电气特性)
Dielectric constant @1MHz2 - 2
Dielectric strength ( kV mm⁻¹ )27.0
Dissipation factor @ 1MHz1.0000 - 10.0000 x 10⁻⁴
Surface resistivity ( Ohm/sq )10¹³
Volume resistivity ( Ohmcm )10¹⁵-10¹⁸

其他参数

公差

直径±5%
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