| The structure, memory mechanism and applications of SMPU were summarized in this paper including the development of electromagnetism shield of the polymer. SMPU has been synthesized which had regular-segmented construction by solution polymerization of PBA/MDI/BDO. It can be concluded that reactive condition can influce comprehensive property of SMPU by experiment contrast, and the best technics was found. FTIR was used to analyze the SMPU. It showed better shape memory and mechanics property.The compound material of ACET/BaTiO3/SMPU system had been made by solution admixture, and its property was also detemined. Results showed that added ACET can evidently increase its electrical conductivity, and added BaTiO3 can improve its dielectric properties. The change extent related to the quantity of the added substance, at the same time by adding the ACET and BaTiO3, the material will have novel function of electromagnetism shield but with the loss of its mechanical and shape memory properties, it still can satisfy some requests. It elucidated that it is feasible to make the intelligent electromagnetism shield composite by the novel probe. |
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