Preparation and Performance Tests of Polyurethane Composite Material Modified by Nano-CaCO3 for Sneaker Soles
The nano material/polyurethane composite is prepared with polyurethane as the matrix material and nano material as the modifier.The nano material is evenly distributed in the long chain structure of polyurethane macromolecules,which can not only ensure the flexibility and stiffness of the composite material,but also improve the mechanical properties of polyurethane material.The performance of sneaker shoes soles made of this composite material is also more excellent.Therefore,by analyzing the performance requirements of sneaker soles,taking polyurethane stock solution as the sole matrix material,nano CaCO3 particles are added into the stock solution based on the prepolymerization method,and the performance of sneaker shoes soles made from this stock solution is tested and analyzed.The results show that the antiskid property of nano CaCO3/polyurethane composite sneaker soles was significantly better than that of pure polyurethane ones,which could protect athletes from injury;nano-CaCO3/polyurethane composite sneaker soles have better wear resistance,durability and longer service life.
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