聚甲基丙烯酸甲酯粉末, PMMA, Acrylic, Spherical, Cross-linked
产品介绍
| 订货号 | 包装规格 | | Weight | | 988-994-41 | 50 g | | 219-110-26 | 100 g | | 547-907-79 | 200 g | | 960-969-87 | 500 g | | 208-970-40 | 1000 g |
产品参数 | Mean Particle Size[平均粒度] | 10 | | Product Shape[形状] | Spherical | | Structure[结构] | Cross-linked | | Weight[重量] | 50 g - 1000 g | | Physical Properties(物理性质) | | Abbe number | 57.2 | | Density ( g cm⁻3 ) | 1.190 | | Flammability | HB | | Limiting oxygen index ( % ) | 17 - 20 | | Radiation resistance | Fair | | Refractive index | 1.490 | | Resistance to Ultra-violet | Good | | Water absorption - over 24 hours ( % ) | 0.200 | | Mechanical Properties(机械性能) | | Elongation at break ( % ) | 2.5 -4.0 | | Hardness - Rockwell | M92-100 | | Izod impact strength ( J m⁻1 ) | 16.0 - - 32.0 | | Poisson's ratio | 0.350 - 0.400 | | Tensile modulus ( GPa ) | 2.40 - 3.30 | | Tensile strength ( MPa ) | 80.00 | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 3 | | Dielectric strength ( kV mm⁻1 ) | 15.0 | | Dissipation factor @ 1MHz | 0.0140 | | Surface resistivity ( Ohm/sq ) | 101⁴ | | Volume resistivity ( Ohmcm ) | 2-14x101⁵ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻1 ) | 70.000 - 77.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 105 | | Heat-deflection temperature - 1.8MPa ( C ) | 95.0 | | Lower working temperature ( C ) | -40 | | Specific heat ( J K⁻1 kg⁻1 ) | 1400.0 - 1500.0 | | Thermal conductivity ( W m⁻1 K⁻1 ) | 0.17 - 0.19 @23℃ | | Upper working temperature ( C ) | 50 - 90 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good-Poor | | Acids - dilute | Good-Poor | | Alcohols | Good-Poor | | Alkalis | Good | | Aromatic hydrocarbons | Poor | | Greases and Oils | Good | | Halogenated Hydrocarbons | Poor | | Halogens | Poor | | Ketones | Poor |
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