| abstract |
The present invention relates to a kind of low GWP foaming agents of environment-friendly type to produce continuous plate glycol composition, belongs to polyurethanes technology field.The present invention includes following raw material: based on aliphatic mono-, two- or polyamines, the polyester that molecular weight is 200~700；Based on aliphatic mono-, two- or polyamines, the polyester that molecular weight is 100~500；Based on aliphatic mono-, two- or polyamines, molecular weight for 100-300 polyethylene oxide/propylene oxide polyethers；Molecular weight is the line style polyethylene oxide/propylene oxide polyethers of 500-1000；It can be with the hydrogen atom of isocyanate-reactive, other compounds that molecular weight is 60-500 comprising at least two；Water；Amines catalyst；Organic acid salt catalyst；Foaming agent；Additive.By the continuous slabstock polyurethane foam of hard prepared by the present invention, there is large increase in terms of flame retardant property, thermal coefficient is excellent. |