聚甲醛共聚物,棒, Acetal, Copolymer POMC, Yellow Similar To RAL 1007, 90mm直径

品牌:	Goodfellow
产地:	英国

产品介绍

产品参数

Colour[颜色]	Yellow Similar To RAL 1007
Diameter[直径]	90mm
Length[长度]	100mm - 2100mm
Electrical Properties(电气特性)
Dielectric constant @1MHz	4 - 4
Dielectric strength ( kV mm⁻¹ )	20.0 @2.3mm
Dissipation factor @ 1MHz	0.0060 - 0.1800
Surface resistivity ( Ohm/sq )	10¹⁵
Volume resistivity ( Ohmcm )	10¹⁵
Chemical Resistance(耐化学性)
Acids - concentrated	Poor
Acids - dilute	Good-Fair
Alcohols	Good-Fair
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Good-Fair
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )	80.000 - 120.000
Heat-deflection temperature - 0.45MPa ( C )	160
Heat-deflection temperature - 1.8MPa ( C )	110.0
Lower working temperature ( C )	-40
Specific heat ( J K⁻¹ kg⁻¹ )	1500.0
Thermal conductivity ( W m⁻¹ K⁻¹ )	0.23 - 0.30 @23℃
Upper working temperature ( C )	80 - 120
Physical Properties(物理性质)
Density ( g cm⁻³ )	1.410
Flammability	HB
Limiting oxygen index ( % )	15
Radiation resistance	Poor
Resistance to Ultra-violet	Poor
Water absorption - equilibrium ( % )	0.60 - 0.80
Water absorption - over 24 hours ( % )	0.200 - 0.250
Mechanical Properties(机械性能)
Elongation at break ( % )	15.0 -40.0
Hardness - Rockwell	M80
Izod impact strength ( J m⁻¹ )	70.0 - - 80.0
Poisson's ratio	0.350
Tensile modulus ( GPa )	2.30 - 2.80
Tensile strength ( MPa )	60.00 - 70.00