Reinforced nanowrinkle electrospun photothermal membranes via solvent‐induced recrystallization

Author:

Chang Jinlin1ORCID,Wang Weiling2,Li Zhaoxin1,Wang Yujiao1,Hou Yacong1,Cao Zhiyuan2,Liang Zhenwei1,Ma Yuan1,Weng Ding1,Song Jun3ORCID,Yu Yadong1,Chen Lei1,Wang Jiadao1

Affiliation:

1. State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical Engineering, Tsinghua University Beijing People's Republic of China

2. State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University Shanghai People's Republic of China

3. Materdicine Lab, School of Life Sciences, Shanghai University Shanghai People's Republic of China

Abstract

AbstractWearable photothermal materials can capture light energy in nature and convert it into heat energy, which is critical for flexible outdoor sports. However, the conventional flexible photothermal membranes with low specific surface area restrict the maximum photothermal capability, and loose structure of electrospun membrane limits durability of wearable materials. Here, an ultrathin nanostructure candle soot/multi‐walled carbon nanotubes/poly (L‐lactic acid) (CS/MWCNTs/PLLA) photothermal membrane is first prepared via solvent‐induced recrystallization. The white blood cell membrane‐like nanowrinkles with high specific surface area are achieved for the first time and exhibit optimal light absorption. The solvent‐induced recrystallization also enables the membrane to realize large strength and durability. Meanwhile, the membranes also show two‐sided heterochromatic features and transparency in thick and thin situations, respectively, suggesting outstanding fashionability. The nano‐wrinkled photothermal membranes by novel solvent‐induced recrystallization show high flexibility, fashionability, strength, and photothermal characteristics, which have huge potential for outdoor warmth and winter sportswear.image

Publisher

Wiley

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