Testing items

Testing standards

Units

JHPI-10

JHPI-20

JHPI-30

YS-20

JHTPI

Density

GB/T 1033

g/cm3

1.41

1.38

1.40-1.45

1.35-1.4

1.38

Tensile strength

GB/T 1040

Mpa

≧80

≧130

≧40

≧130

≧85

Elongation at break

GB/T 1040

%

≧7.0

≧8.0

≧3.5

≧7.0

≧7.0

Bending strength

GB/T 9341

Mpa

≧100

≧180

——

≧131

≧110

Compression Strength

GB/T 1041

Mpa

≧110

≧160

≧150

≧150

≧110

Impact Strength

GB/T 1043

kj/㎡

40

≧150

≧12

≧170

NB

Glass transition temperature

GB/T 19466

℃

——

364

330

——

230℃

Heat distortion temperature

GB/T 1643

℃

350

340

——

239

250℃

Dielectric constant

GB/T 1409

——

——

3.7

3.4

3

——