1、The Mechanical Properties of GWT
Thickness
（ mm ） |
Density |
>Test standard |
Test item |
Performance index |
Value |
| 2.00 |
1.5 |
GB/T 1447-2005 |
Tensile |
Modulus of elasticity （ GPa ） |
11.74 |
| Tensile strength （ MPa ） |
291.5 |
| GB/T 1449-2005 |
Bend |
Modulus of elasticity （ GPa ） |
13.43 |
| Flexural strength （ MPa ） |
274.85 |
| GB/T 1843-2008 |
Impact strength |
Impact strength resistance （ KJ/m 2 ） |
≥ 150 |
2、 The aging-resistant property of GWT
Test method: Put several samples into different ovens, then set the temperature to 11 0 ℃ , record the result after 500 hours' aging treatment(Which is equal to five years natural environment).
Thickness
(mm) |
Reference standard |
Test item
|
Performance index |
Before |
After |
| 2.00 |
GB/T 1447-2005 |
tensile |
Modulus of elasticity （ GPa ） |
11.74 |
12.10 |
|
>Tensile strength （ MPa ） |
291.5 |
288 |
| GB/T 1449-2005 |
bend |
Modulus of elasticity （ GPa ） |
13.43 |
11.00 |
|
Flexural strength （ MPa ） |
274.85 |
>254.47 |
3、The tensile strength test after 100 hours of UV exposure.
Test condition
| Test parameter |
Reference standard |
| Power |
Irradiance |
Loop parameter |
Temperature |
Test period |
GB/T 16422.3-1997 |
| UV340 |
0.76W/m3@340nm |
Illumination time: 8h
Condensation time ： 4h |
Illumination 60 ± 3 ℃ Condensation ： 50 ± 3 ℃ |
100h |
Test result
| Reference standard |
Test index |
Before |
After |
| GB/T 1447 - 2005 |
Maximum tensile stress （ Mpa) |
291.5 |
257 |
| Tensile modulus （ Gpa) |
11.74 |
11.44 | | 
