Regulating the Mechanical and Optical Properties of Polymer‐based Nanocomposites by Sub‐Nanowires

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 hydroxyapat...

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Bibliographic Details
Published in:Angewandte Chemie 2023-01, Vol.135 (5), p.n/a
Main Authors: Yuan, Feng, Ouyang, Chen, Yang, Minzheng, Shi, Wenxiong, Ren, Weibin, Shen, Yang, Wei, Yan, Deng, Xuliang, Wang, Xun
Format: Article
Language:English
Subjects:
Chemistry
Gels
Haze
Heat shock proteins
Hydroxyapatite
Inorganic materials
Mechanical properties
Modulus of elasticity
Nanocomposites
Nanotechnology
Nanowires
Optical properties
Polyimide resins
Polymers
Thin Films
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Summary: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. By simple mixing of hydroxyapatite sub‐nanowires (HAP SNWs) and polyimide (PI), hydroxyapatite sub‐nanowires/polyimide (HSP) gels displayed high viscosity and modulus. HSP films showed high transparency, regulable haze, and enhanced Young's modulus.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.202214571