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材料 >> 聚合物材料
聚甲基丙烯酸甲酯,粉末, PMMA,Acrylic,Spherical,Cross-linked
聚甲基丙烯酸甲酯,粉末, PMMA,Acrylic,Spherical,Cross-linked图片
品牌: Goodfellow
产地: 英国
索取资料及报价
品牌: Goodfellow
产地: 英国
半岛bd体育手机客户端 介绍
订货号 包装规格
Weight
501-286-68 50 g
616-353-37 100 g
690-663-88 200 g
007-201-33 500 g
019-158-15 1000 g

半岛bd体育手机客户端 参数

Mean Particle Size[平均粒度] 15
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 ) 101?
Volume resistivity ( Ohmcm ) 2-14x101?
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? 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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