Volume 44, Issue 11 pp. 9185-9193
SHORT COMMUNICATION

Recyclable solid-solid phase-change materials cross-linked by reversible oximecarbamate bonds for solar energy storage

Anqian Yuan

Anqian Yuan

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

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Bo Wu

Bo Wu

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

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Yi Wang

Yi Wang

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

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Yuanyang Zhao

Yuanyang Zhao

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

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Qinfeng Liu

Qinfeng Liu

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

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Jingxin Lei

Corresponding Author

Jingxin Lei

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China

Correspondence

Jingxin Lei, State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.

Email: [email protected]

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First published: 25 June 2020
Citations: 32

Summary

Polymeric solid-solid phase-change materials (SSPCMs) possessing excellent shape stability and adaptability are able to store renewable thermal energy in an economically feasible and environmentally friendly way. Integration of chemical cross-links colorless and recyclability in a single SSPCM is challenging and interesting at present. Herein, the oximecarbamate bond was firstly introduced in chemically cross-linked polyurethanes to prepare recyclable SSPCMs, in which finely dispersed PEG segments function as phase-change components as well as polymeric skeletons. The excellent thermal energy storage capacity (with the enthalpy reached up to 101 J/g) and remarkable thermal stability of the synthesized SSPCMs had been confirmed. Moreover, the as-prepared SSPCMs can be recycled and reprocessed by simple hot pressing because of the reversibility of oximecarbamate bond. This SSPCM combines good thermal storage capacity and appealing recyclability, exhibiting sustained usability for energy storage.

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