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author:

Liu, Zhanqi (Liu, Zhanqi.) [1] | Chu, Yichen (Chu, Yichen.) [2] | Wu, Yongchuan (Wu, Yongchuan.) [3] | Wu, Haidi (Wu, Haidi.) [4] | Wang, Yahui (Wang, Yahui.) [5] | Li, Xiaohao (Li, Xiaohao.) [6] | Wang, Ling (Wang, Ling.) [7] | Xue, Huaigui (Xue, Huaigui.) [8] | Shi, Yongqian (Shi, Yongqian.) [9] (Scholars:施永乾) | Tang, Longcheng (Tang, Longcheng.) [10] | Song, Pingan (Song, Pingan.) [11] | Gao, Jiefeng (Gao, Jiefeng.) [12]

Indexed by:

EI Scopus SCIE

Abstract:

Nanofillers are frequently used to improve the mechanical properties of hydrogels, but it is still difficult to develop composite hydrogels with simultaneously enhanced strength, fracture strain, toughness and fatigue threshold at a high water content. Inspired from the unique structure of spider silk, we propose a "macromolecular chain engineered aramid nanofiber (ANF) reinforcement" strategy to prepare strong and fatigue resistance hydrogels with a relatively high water content. ANFs can decrease the crystallinity while increase the stretchability of PVA hydrogels. The stress can be effectively transferred from the soft and ductile polymer chains to the hard and strong ANFs through strong interfacial hydrogen bonding. The tensile strength, fracture strain, toughness and fracture energy of ANF reinforced hydrogels (ARHs) can reach as high as 2.07 +/- 0.15 MPa, 1084 +/- 116 %, 12.66 +/- 1.1 MJ m(-3), and 3196 +/- 219 J m(-2), respectively, at a water content of -80 %. Also, ARHs show great crack propagation resistance with the fatigue threshold up to -157 J m(-2). The bioinspired ARHs with outstanding mechanical properties and anti-swelling performance have promising applications in the field of soft underwater robots, artificial muscles, and so on.

Keyword:

Crack Fatigue Mechanical properties Nano composites Stress/strain curves

Community:

  • [ 1 ] [Liu, Zhanqi]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China
  • [ 2 ] [Wu, Yongchuan]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China
  • [ 3 ] [Wu, Haidi]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China
  • [ 4 ] [Xue, Huaigui]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China
  • [ 5 ] [Gao, Jiefeng]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China
  • [ 6 ] [Chu, Yichen]Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
  • [ 7 ] [Wang, Yahui]Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
  • [ 8 ] [Li, Xiaohao]Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
  • [ 9 ] [Wang, Ling]Anqing Normal Univ, Sch Chem & Chem Engn, Anqing 246011, Peoples R China
  • [ 10 ] [Shi, Yongqian]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Peoples R China
  • [ 11 ] [Tang, Longcheng]Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Key Lab Organosilicon Chem & Mat Technol MoE, Key Lab Silicone Mat Technol Zhejiang Prov, Hangzhou 311121, Peoples R China
  • [ 12 ] [Song, Pingan]Univ Southern Queensland, Ctr Future Mat, Springfield Campus, Toowoomba, Qld 4300, Australia

Reprint 's Address:

  • [Gao, Jiefeng]Yangzhou Univ, Sch Chem & Chem Engn, 180 Rd Siwangting, Yangzhou 225002, Jiangsu, Peoples R China;;

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Source :

COMPOSITES SCIENCE AND TECHNOLOGY

ISSN: 0266-3538

Year: 2024

Volume: 252

8 . 3 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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