The cell structure of PU foam is mostly open cells. It is mainly used as furniture cushion materials, transportation vehicle seat cushion materials, packaging materials, insulation materials, various soft lining laminates, and composite materials. Adding catalysts can regulate the speed of foaming and gelation reactions and maintain a good balance state. The weather resistance of polyurethane is poor, and it will age, turn yellow, and decrease in physical properties under the influence of external factors such as light and heat. Adding antioxidants and UV absorbers can delay this process. Adding trace amounts of antioxidants to polyurethane raw materials or formulations can inhibit the thermal oxidation of polyurethane.

Recommendation:

Catalysts: DMAEE, PMDETA, DMCHA, DMEA, Polycat41, TEMED, TMR-2, DMP-30

Antioxidants: 1330, 1010, 1076, 168, 246