no | item | the standard | test result | ||
1 | appearance | have no grain, no agglomerations, no skinning, and no bubble. | pass the standard | ||
2 | density (g/cm 3 ) | ±0.1 | 0.9 60 | ||
3 |
droop degree
( m m ) |
uprightness | ≤3 | 0 | |
level | no damage | no damage | |||
4 | skinning time ( h ) | ≤3 | 0.2 | ||
5 | elastic recovery ratio ( % ) | ≥80 | 99 | ||
6 | extrusion ability ( ml/min ) | ≥80 | 108 | ||
7 |
tensile modulus
( mpa ) |
23 ºc | ≤ 0.4 | 0.39 | |
8 | cold-hot adhesive | no damage | no damage | ||
9 | under water adhesive | no damage | no damage | ||
10 | uv radiation | no damage | no damage | ||
11 | definite elongation | no damage | no damage |