| abstract |
A shape memory polymer foam material, characterized in that, it is formed by polymerizing and foaming the following raw materials in parts by mass: 80 parts of polyester diol; 8 to 24 parts of polyether diol; 0.16 to 1.6 parts Crosslinking agent; 0.64-6.4 parts of foaming agent; 2-5.4 parts of curing agent; 0.16 parts of catalyst. Compared with the prior art, on the one hand, the shape memory polymer of the present invention has a suitable crystallization melting temperature, that is, a setting temperature, and a lower deformation recovery temperature; on the other hand, the shape memory polymer of the present invention has a hardness It is soft and does not feel uncomfortable when wearing it; the light density leads to no increase in the burden when wearing; and the monomer of the shape memory polymer contains a large number of ether groups, and the curing agent reacts to form a large number of urethane groups, which has good skin affinity Finally, the shape memory polymer ensures the shape recovery function under the synergistic action of foaming agent, crosslinking agent, curing agent, etc., and takes into account elasticity and good mechanical properties, and is not easy to crack and other defects, which further improves the product experience. |