Preparation and Application of Bio-based Latex-like Flexible Polyurethane Foams
The latex-like flexible polyurethane foams were prepared with bio-based polyols,polymer polyol,polyether polyol,TDI and modified MDI.The effects of dosage of the bio-based polyol,the isocyanate index and dosage of the mixed cross-linking agents on the physical characteristics and comfort of the foam were studied.The results showed that the foams with an enhanced latex-like feel could be prepared by using bio-based polyol,the foams with superior mechanical performance could be produced by adjusting the isocyanate index and the amount of self-made cross-linking agent.The soft cushion items could be manufactured from latex-like polyurethane soft foams and could give comfort and sensation akin to latex.
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