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Regulating the Mechanical and Optical Properties of Polymer-based Nanocomposites by Sub-Nanowires |
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| Authors: | Feng Yuan Dr Chen Ouyang Minzheng Yang Prof Wenxiong Shi Dr Weibin Ren Prof Yang Shen Prof Yan Wei Prof Xuliang Deng Prof Xun Wang |
| Institution: | 1. Institute of Medical Technology, Peking University Health Science Center, Beijing, 100191 China
Beijing Laboratory of Biomedical Materials, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081 China Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084 China Contribution: Data curation (lead), Formal analysis (lead), Investigation (lead), Writing - original draft (lead);2. Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084 China Contribution: Data curation (supporting), Formal analysis (supporting);3. State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China Contribution: Data curation (supporting), Formal analysis (supporting);4. Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384 China Contribution: Software (supporting);5. State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China Contribution: Formal analysis (supporting);6. State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China Contribution: Formal analysis (supporting), Supervision (supporting);7. Institute of Medical Technology, Peking University Health Science Center, Beijing, 100191 China;8. Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084 China |
| Abstract: | Sub-nanowires (SNWs) exhibit great potential applications in nanocomposites owing to their high specific surface area, high flexibility, and similarity to polymer chains in dimension, which are a good entry point to bridge inorganic materials and polymer materials. Herein, we synthesized hydroxyapatite sub-nanowires (HAP SNWs) and engineered hydroxyapatite sub-nanowires/polyimide (HSP) gels and films by simple mixing of HAP SNWs and polyimide (PI). Benefiting from the interactions between HAP SNWs and PI, these nanocomposites were a continuous hybrid network. As the increase of HAP SNWs contents, the viscosity and modulus of HSP gels were greatly improved by one or two orders of magnitude compared with PI gel. HSP films not only maintained high transparency but also gained high haze, as well as exhibited enhanced Young's modulus. Thus, both HSP gels and films developed in this work are promising for various applications in coatings and high-performance films. |
| Keywords: | Gels Nanocomposites Nanowires Thin Films |