检测项目Test item

指标Items

5倍

8倍

10倍

15倍

20倍

25倍

30倍

35倍

表观密度Density kg/m3

200±30

125±15

100±10

66.7±8

50±6

40±4

33.3±3

28.6±2

邵氏硬度 °

Hardness

60～70

50～60

45～50

35～45

30～35

25～30

18～25

13～18

吸水率Water absorbtion (23℃±2℃，24h)g/cm2

≤0.02

≤0.02

≤0.03

≤0.03

≤0.04

≤0.04

≤0.05

≤0.05

导热系数K value w/m.k

≤0.092

≤0.082

≤0.072

≤0.062

≤0.053

≤0.047

≤0.041

≤0.038

拉伸强度(纵/横)Tensile strengthMPa MPa

≥1.35/1.08

≥1.12/0.89

≥0.88/0.71

≥0.68/0.56

≥0.39/0.33

≥0.33/0.25

≥0.25/0.20

≥0.20/0.16

断裂伸长率Elongation % (纵/横)%

≥

260/220

≥

230/200

≥

210/185

≥

190/170

≥

170/150

≥

160/135

≥

140/130

≥

120/110

撕裂强度Tearing strength (纵/横)kN/m

≥5.90/7.10

≥4.80/5.40

≥3.60/4.00

≥2.80/3.30

≥1.80/2.30

≥1.60/2.00

≥1.35/1.70

≥1.25/1.50

压缩永久变形compressed distortions (25%，22h)%

≤5

≤6

≤7

≤7

≤9

≤9

≤11

≤11

尺寸变化率dimension change (70±2℃，22h)(纵/横)%

≤

-6/-4

≤

-6/-4

≤

-6/-4

≤

-6/-4

≤

-6/-4

≤

-8/-6

≤

-8/-6

≤

-8/-6