Material / Performance | SGP | PVB | Standard |
g/cm Proportion(or ratio) | 0.95 | 1.07~1.08 | ASTM D-792 |
℃ Linear expansion coefficient | 10~15x10 (-20℃-32℃) | 4x10 | ASTM D-696 |
MPa Longitudinal strength | 34.5 | 20 | ASTM D-638 |
MJ/m The strength of riping and pulling | 50 | 10~15 | ASTM D-638 |
CSS,MPa The cohesional strength with glass | >20.7 | Du Pont | |
% Elongation ratio | 400 | 275(ASTM D-412) | ASTM D-638 |
@66PSI The temperature of thermal deformation | 43℃ | ASTM D-696 | |
Fogging | >>2% | <2 | |
% Yellow index | <2.5 | 10~15 | (Interlayer) |
Refraction index | 1.5 | 1.47~1.5 | |
nm The wave band which brocking UV | 310 | 380 | |
3C+0.38+3C The impediment of UV rate | 99.98 | 99.98 | |
kg/cm The adhesion with glass | (500mm/min,20℃) |