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