科思創(chuàng) Makrolon? 2805（聚碳酸酯-PC塑料）

Physical Properties物理性質

Metric公制數(shù)據(jù)

English英制數(shù)據(jù)

Comments測試方法

Density密度 

1.20 g/cc

0.0434 lb/in3

Water Absorption吸水率 

0.35 %

0.35 %

Saturation in water

Moisture Absorption at Equilibrium吸濕平衡 

0.15 %

0.15 %

Equilibrium at 50% RH

Water Absorption at Saturation飽和水吸收率 

0.35 %

0.35 %

Linear Mold Shrinkage 線性收縮率

0.0060 - 0.0080 cm/cm

0.0060 - 0.0080 in/in

ASTM D955

Melt Flow熔體流動速率 

9.5 g/10 min
@Load 1.20 kg,
Temperature 300 °C

9.5 g/10 min
@Load 2.65 lb,
Temperature 572 °F

Mechanical Properties力學性能

Metric公制數(shù)據(jù)

English英制數(shù)據(jù)

Comments測試方法

Hardness, Rockwell M羅氏硬度M 

75

75

ASTM D785

Hardness, Rockwell R羅氏硬度R 

118

118

ASTM D785

Tensile Strength, Ultimate極限拉伸強度 

72.0 MPa

10400 psi

ASTM D638

Tensile Strength, Yield屈服拉伸強度 

63.0 MPa

9140 psi

Elongation at Break斷裂伸長率斷裂伸長率 

120 %

120 %

ASTM D638

Elongation at Yield屈服伸長率 

6.0 %

6.0 %

Tensile Modulus拉伸模量 

2.40 GPa

348 ksi

Flexural Yield Strength彎曲屈服強度 

86.0 MPa

12500 psi

at 5% strain; ASTM D790

Flexural Modulus彎曲彈性模量 

2.30 GPa

334 ksi

ASTM D790

Izod Impact, Notched懸臂梁缺口沖擊強度 

9.10 J/cm
@Thickness 3.20 mm

17.0 ft-lb/in
@Thickness 0.126 in

ASTM D256

Charpy Impact Unnotched夏比缺口試樣沖擊 

NB

NB

Tensile Creep Modulus, 1 hour拉伸蠕變模量，1小時 

2200 MPa

319000 psi

Tensile Creep Modulus, 1000 hours拉伸蠕變模量，1000小時 

1900 MPa

276000 psi