材料科学
复合材料
形状记忆合金
碳纳米管
扫描电子显微镜
杜仲
导电体
医学
病理
中医药
替代医学
作者
Long Li,Sen Luo,Donghan Li,Na Wang,Hailan Kang,Qinghong Fang
摘要
Abstract Thermal and electrical dual‐triggered shape memory composites were prepared by introducing multi‐walled carbon nanotubes (CNTs) into the Eucommia ulmoides gum (EUG) matrix. The morphology of the composites was investigated by scanning electron microscope, and the CNTs exhibited good dispersion in the EUG matrix. The well‐dispersed CNTs built a conductive network in the EUG matrix, generating electric current induced heat. The composites showed the shape memory effect upon stimulation by heat and electricity. The composites exhibited increased shape recovery speed with the increase in CNTs content and applied voltage. Furthermore, the composites recovered to 90% of their initial length within 36 V (AC), which is safe for humans. This work provides a feasible material with dual‐triggered shape memory characteristics, which can find potential applications in medicine devices.
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