特性

ASTM實(shí)驗(yàn)方法及條件

POLYFLON PTFE

比重(GRAVITY)

D792

2.13-2.3

吸水率(WATER ABSORPTION)

 D570/24H,1/3”T

<0.00

成型收縮(MDD SHRINKAGE)

0.02-0.05

接觸角(CONTACT  ANGLE)

與水平的夾角

110

                                                                                                                                                                                                        導(dǎo)熱率(HEAT CONDUCTIVITY)

C177

0.25

線膨脹系數(shù)(COEFFICTENT OF LINEAR EXPANSION)

D696/23-60⁰C

10×10^-5

熔點(diǎn)(MELTING POINT)

327

高連續(xù)使用溫度(MAX.WORKING TEMPATURE)

260

拉伸強(qiáng)度(TENSILE STRENGTH)

D638/23⁰C

20-45

延伸率(ELONGATION)

D638/23⁰C

200-450

壓縮強(qiáng)度(COMPRESSIVE STRENGTH)

D695/1%變形,25⁰C

5-6

拉伸回彈率(TENSILE DISABILITY)

D638/23⁰C

392

彎曲回彈率(BENDING DISABILITY)

D790/23⁰C

490-588

沖擊強(qiáng)度(IMPACT STRENGTH)

D256/23⁰C懸臂梁氏

160

硬度(HARDNESS)

硬度計(jì)DUROMETER

D50-D65

靜摩擦系數(shù)(COEFFICIENT OF STATIC FRICTION)

與鋼對摩

0.02

介電常數(shù)(DIELECTRIC CONSTANT)

D150/10³HZ

2.1

D150/10⁶HZ

介電擊穿強(qiáng)度(DIELECTRIC IMPACT STRENGTH)

D149/短時(shí)間,3.2MM

1.9

體積電阻(VOLUMN RESISTANCE)

D257

>10¹⁸

耐藥品性(INSECTICIDE TOLERANCE)

優(yōu)異

耐氣候性(WEATHERABILITY)                                                                                                                                                                                                                                                                                                                                                                   

優(yōu)異

阻燃性(FIVE RESISTANCE PROPERTY)

D2863/氧指數(shù)濃度臨界指數(shù)

>95