PTFE聚四氟乙烯）物理机械性能的检测

 PTFE（聚四氟乙烯）物理机械性能的检测：

                                                   

特性	ASTM实验方法及条件	POLYFLON PTFE
比重(GRAVITY)	D792	2.13-2.3
吸水率(WATER ABSORPTION)	D570/24H,1/3”T	<0.00
成型收缩(MDD SHRINKAGE)		0.02-0.05
接触角(CONTACT  ANGLE)	与水平的夹角	110
导热率(HEAT CONDUCTIVITY)	C177	0.25
线膨胀系数(COEFFICTENT OF LINEAR EXPANSION)	D696/23-600C	10×10-5
熔点(MELTING POINT)		327
高连续使用温度(MAX.WORKING TEMPATURE)		260
拉伸强度(TENSILE STRENGTH)	D638/230C	20-45
延伸率(ELONGATION)	D638/230C	200-450
压缩强度(COMPRESSIVE STRENGTH)	D695/1%变形,250C	5-6
拉伸回弹率(TENSILE DISABILITY)	D638/230C	392
弯曲回弹率(BENDING DISABILITY)	D790/230C	490-588
冲击强度(IMPACT STRENGTH)	D256/230C悬臂梁氏	160
硬度(HARDNESS)	硬度计DUROMETER	D50-D65
静摩擦系数(COEFFICIENT OF STATIC FRICTION)	与钢对摩	0.02
介电常数(DIELECTRIC CONSTANT)	D150/103HZ	2.1
	D150/106HZ
介电击穿强度(DIELECTRIC IMPACT STRENGTH)	D149/短时间,3.2MM	1.9
体积电阻(VOLUMN RESISTANCE)	D257	>1018
耐药品性(INSECTICIDE TOLERANCE)		优异
耐气候性(WEATHERABILITY)		优异
阻燃性(FIVE RESISTANCE PROPERTY)	D2863/氧指数浓度临界指数	>95