Anti-Aging Testing Data
Flexible polyurethane foam in the foam or processing to produce high-temperature heat yellowing caused by aging oxygen, played a great synergy.
Description
Flexible polyurethane foam in the foam or processing to produce high-temperature heat yellowing caused by aging oxygen, played a great synergy.
Heat aging test
Sample Size: 200mm thick of soft PU foam (TDI Base)
Density: 0.03 ~ 0.05 g / cm3
Baking conditions: 135 ℃ 8hrs
Add amount: 3% GGK-690, 3% GGK-690 + 0.6% GGK-681
Test Unit: anti-aging index
The experimental results
PU foam can reduce the yellowness index YI to 3.27, compared with 10.72 without adding foam can improve the thermal stability of the processing of foam material.
