用淀粉接枝聚醚共聚物合成高回弹性聚氨酯泡沫塑料

Synthesis of PU high resilience flexible foams with polyether grafting starch copolymer

　　The problem of improving comfortability and load- bearing capacities of polyurethane(PU) flexible foams is concerned by PU industry. Adding inorganic fillers or organic fillers is traditional methods. First, adding inorganic fillers directly such as CaCO3, BaSO4, can make the products low cost. However, properties of these foam products are often of inferior quality. Their compound system is unstable too. It also brings much difficulty in forming operation. Secondly, directly adding organic fillers such as polymer polyols or polyurea polyols dispersing liquids can make foam products high cost. However, properties of those products are of excellent quality. In this paper, a new type of starch copolymer was used for preparing high resilience polyurethane foams(HRPU). These dispersing liquids are of good stability and lower cost comparing with organic filler. Meanwhile, properties of foam products are the same as those foam products prepared by organic fillers respectively[1,2].……

收稿日期：2001年12月30日

出版日期：2002年3月15日