青岛科技大学  English 
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教授 博士生导师  
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教师拼音名称:shixinyan

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所在单位:橡塑材料与工程省部共建教育部重点实验室

职务:橡塑材料与工程省部共建教育部重点实验室常务副主任

学历:博士研究生

办公地点:青岛市舞阳路51-1号青岛科技大学橡塑楼406房间

性别:女

联系方式:0532-84022468

学位:博士

职称:教授

毕业院校:青岛科技大学

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Fast near-infrared light responsive shape memory composites: Polydopamine nanospheres hybrid polynorbornene

关键字:POLYMER NETWORKS; NANOPARTICLES; BEHAVIOR; PROGRESS

摘要:In this work, polynorbornene (PNB) (plasticized by 50 phr microcrystalline wax) with excellent thermo-triggered shape memory properties was used as the matrix material, in which synthetic polydopamine (PDA) nanospheres were hybrided. Consequently, PNB/PDA composites presented ultrafast near-infrared (NIR) responsive shape memory performance due to PDA's light-to-heat conversion ability. The results showed that PNB/PDA composites hybrided with 1 wt% PDA reached 74 degrees C within 50 s under the irradiation of NIR (808 nm wavelength). NIR-triggered shape memory performance of the PNB/PDA composites increased with the rise of NIR output power. When light power was 2.5w/cm(2), the sample can completely recover its original shape within 20 s. Therefore, PDA-hybrided PNB composites not only have good thermal-responsive shape memory performance, but also have excellent one triggered by NIR, which broaden PNB's responsive ways for shape memory.

卷号:206

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