材料 >> 聚合物材料
聚丙烯,球体, PP, 19.05mm直径, Hollow
产品介绍 | 订货号 | 包装规格 | | 544-441-13 | 50 Piece | | 001-075-03 | 100 Piece | | 494-029-19 | 200 Piece |
产品参数 | Diameter[直径] | 19.05mm | | Product Shape[形状] | Hollow | | Quantity[数量] | 50 Piece - 200 Piece | | Type[类型] | Precision Sphere | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 2 - 3 | | Dielectric strength ( kV mm⁻¹ ) | 30.0 - 40.0 | | Dissipation factor @ 1MHz | 0.0003 - 0.0005 | | Surface resistivity ( Ohm/sq ) | 10¹³ | | Volume resistivity ( Ohmcm ) | 10¹⁶-10¹⁸ | | Mechanical Properties(机械性能) | | Abrasive resistance - ASTM D1044 ( mg/1000 cycles ) | 13 - 16 | | Coefficient of friction | 0.10 - 0.30 | | Elongation at break ( % ) | 150.0 -300.0, for biax film >50 | | Hardness - Rockwell | R80-100 | | Izod impact strength ( J m⁻¹ ) | 20.0 - - 100.0 | | Tensile modulus ( GPa ) | 0.90 - 1.50 , for biax film 2.2-4.2 | | Tensile strength ( MPa ) | 25.00 - 40.00 , for biax film 130-300, | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good-Fair | | Acids - dilute | Good-Fair | | Alcohols | Good | | Alkalis | Good | | Aromatic hydrocarbons | Fair | | Greases and Oils | Good-Fair | | Halogenated Hydrocarbons | Good-Poor | | Halogens | Poor | | Ketones | Good | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 0.900 | | Flammability | HB | | Limiting oxygen index ( % ) | 18 | | Radiation resistance | Fair | | Refractive index | 1.490 | | Resistance to Ultra-violet | Poor | | Water absorption - equilibrium ( % ) | 0.03 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 100.000 - 180.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 100 - 105 | | Heat-deflection temperature - 1.8MPa ( C ) | 60.0 - 65.0 | | Lower working temperature ( C ) | - -10 - -60 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1700.0 - 1900.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.10 - 0.22 @23℃ | | Upper working temperature ( C ) | 90 - 120 |
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