Nanonetwork Thermosets from Templated Polymerization for Enhanced Energy Dissipation

Suhail K. Siddique, Tze Chung Lin, Cheng Yen Chang, Yung Hsuan Chang, Chang Chun Lee, Shou Yi Chang, Ping Chi Tsai, Yeau Ren Jeng, Edwin L. Thomas, Rong Ming Ho

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

Herein, we aim to develop a facile method for the fabrication of mechanical metamaterials from templated polymerization of thermosets including phenolic and epoxy resins using self-assembled block copolymer, polystyrene-polydimethylsiloxane with tripod network (gyroid), and tetrapod network (diamond) structures, as templates. Nanoindentation studies on the nanonetwork thermosets fabricated reveal enhanced energy dissipation from intrinsic brittle thermosets due to the deliberate structuring; the calculated energy dissipation for gyroid phenolic resins is 0.23 nJ whereas the one with diamond structure gives a value of 0.33 nJ. Consistently, the gyroid-structured epoxy gives a high energy dissipation value of 0.57 nJ, and the one with diamond structure could reach 0.78 nJ. These enhanced properties are attributed to the isotropic periodicity of the nanonetwork texture with plastic deformation, and the higher number of struts in the tetrapod diamond network in contrast to tripod gyroid, as confirmed by the finite element analysis.

原文English
頁(從 - 到)3355-3363
頁數9
期刊Nano letters
21
發行號8
DOIs
出版狀態Published - 2021 4月 28

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 一般化學
  • 一般材料科學
  • 凝聚態物理學
  • 機械工業

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