Influence of topological structure on mechanical property of recyclable bio-based hyperbranched epoxy/carbon fiber fabric composites

Liang, Nuo; Liu, Xin; Hu, Jian; Yu, Wei; Peng, Mengjie; Ma, Yinghe; Jiang, Yu; Cheng, Juan; Chen, Sufang; Zhang, Daohong

doi:10.1016/j.cej.2023.144329

Cited by 16 publications

(9 citation statements)

References 58 publications

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“…The structure of HERs could be precisely controlled by using the click reaction to investigate the systematic relationship between the hyperbranched topological properties and mechanical properties of resins. Zhang 168 synthesized hyperbranched polyester OTFP by an esterification reaction from biomass 2,5-furandicarboxylic acid, which was further transferred to biodegradable HER ETFP- n ( n = 6, 12, 24) by the click reaction (Fig. 19).…”

Section: Synthesis Of Bio-based Hyperbranched Epoxy Resins and Their ...mentioning

confidence: 99%

“…19, bio-based degradable hyperbranched epoxy resins (ETFP- n , n = 6, 12, 24) and their precursors thiol-ended hyperbranched polyesters (STFP- n ) were prepared using bio-mass 2,5-furandicarboxylic acid and trimethylolpropane as the main raw materials. 168…”

Section: Recycling Of Bio-based Hyperbranched Epoxy Resinsmentioning

confidence: 99%

“…To explore the recycling and reuse of carbon fiber fabrics, eight layers of ETFP-12/TCF composites were immersed in a phosphoric acid solution of ethylene glycol (EG) and H 2 O 2 and subjected to degradation experiments. 168 The degradation conditions were systematically investigated, including the type of acid, acid concentration, temperature, time, and solution content. ETFP-12/TCF composites could be completely degraded by using a 2 M H 3 PO 4 /EG/H 2 O 2 solution at 90 °C.…”

Section: Recycling Of Bio-based Hyperbranched Epoxy Resinsmentioning

confidence: 99%

“…In addition, more precision analysis and testing technologies are expected to be used to characterize the microstructure of the HERs and the cured resins. Recently, our group has correlated the topological shape of HERs 88,168 and the free volume of the cured resins 229 with the mechanical properties by using dynamic and static light scattering (D/SLS) and positron annihilation spectroscopy (PAS), respectively. Although more in-depth research is needed, we believe this is a good start.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

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Bio-based hyperbranched epoxy resins: synthesis and recycling

Jiang,

Li,

et al. 2024

Chem. Soc. Rev.

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Section: Synthesis Of Bio-based Hyperbranched Epoxy Resins and Their ...mentioning

confidence: 99%

Section: Recycling Of Bio-based Hyperbranched Epoxy Resinsmentioning

confidence: 99%

Section: Recycling Of Bio-based Hyperbranched Epoxy Resinsmentioning

confidence: 99%

Section: Challenges and Perspectivesmentioning

confidence: 99%

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Bio-based hyperbranched epoxy resins: synthesis and recycling

Jiang,

Li,

et al. 2024

Chem. Soc. Rev.

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“…It should be noted that about 90% of the commercial epoxy resins were prepared from nonrenewable petroleum-based raw materials, which did not follow the sustainable development and circular economy concept. Consequently, the design of ecofriendly, high-performance epoxy resin from renewable and nontoxic resources has attracted tremendous attention. − …”

Section: Introductionmentioning

confidence: 99%

Waterborne Lignin-Based Epoxy Resin: A Green and Effective Chemical Cross-Linker to Form Soy Protein-Based Wood Adhesive with High Performance

Huo,

Yang,

Jin

et al. 2024

ACS Appl. Polym. Mater.

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Waterborne lignin-based epoxy resin emulsions (WLEPs) bearing poly(ethylene glycols) (PEGs) as hydrophilic and soft segments were successfully prepared without using any solvent, and then the WLEPs were cured with polyamide (PA) and the soybean protein isolate (SPI) to form wood adhesives SPI/WLEP/PA with good bonding performance and water resistance. The WLEPs were uniformly dispersed in the SPI matrix, and the multiple interactions between WLEP, PA, and SPI resulted in a more stable and compact cross-linked network, which was conducive to enhancing the cohesion strength, water tolerance, and thermal stabilities of the SPI-based adhesives. In comparison to the pristine SPI adhesive, the dry and hot water (63 °C for 3 h) shear strengths of the plywood formulated with SPI/WLEP/PA (WLEP: 16 wt %) remarkably increased by 137% (3.94 MPa) and 134% (0.75 MPa), respectively, satisfying the demand of interior-use plywood type II. Especially, when the WLEP loading reached 21 wt %, the plywood demonstrated outstanding boiling water strength of 0.77 MPa, higher than the China national standard requirement for exterior-grade plywood type I (≥0.70 MPa). These results suggested that the WLEPs could serve as a green and effective cross-linker to give SPI-based wood adhesives with high water tolerance and bonding performance.

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Ultrastrong and High‐Tough Thermoset Epoxy Resins from Hyperbranched Topological Structure and Subnanoscaled Free Volume

Liu,

Wu,

et al. 2023

Advanced Materials

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The strength and toughness of thermoset epoxy resins are generally mutually exclusive, as are the high performance and rapid recyclability. Experimentally determined mechanical strength values are usually much lower than their theoretical values. The preparation of thermoset epoxy resins with high modulus, high toughness, ultra‐strong strength and highly efficient recyclability is still a large challenge. Here, we are the first to synthesize novel hyperbranched epoxy resins (Bn, n = 6, 12, 24) containing an imide structure by a thiol‐ene click reaction. Bn shows an excellent comprehensive function in simultaneously improving the strength, modulus, toughness, low‐temperature resistance and degradability of diglycidyl ether of bisphenol‐A (DGEBA). All the mechanical properties first increase and then decrease with minimization of the free volume properties. The improvement is attributable to uniform molecular holes or free volume by a molecular mixture of linear and hyperbranched topological structures. The precise measurement and controllability of the molecular free volume properties of epoxy resins is first discovered, as well as the imide structure degradation of crosslinked epoxy resins. We have successfully resolved the two conflicts between strength and toughness and between high performance during service and high efficiency during degradation. These findings provide a route for designing ultra‐strong, tough and recyclable thermoset epoxy resins.This article is protected by copyright. All rights reserved

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Influence of topological structure on mechanical property of recyclable bio-based hyperbranched epoxy/carbon fiber fabric composites

Cited by 16 publications

References 58 publications

Bio-based hyperbranched epoxy resins: synthesis and recycling

Bio-based hyperbranched epoxy resins: synthesis and recycling

Waterborne Lignin-Based Epoxy Resin: A Green and Effective Chemical Cross-Linker to Form Soy Protein-Based Wood Adhesive with High Performance

Ultrastrong and High‐Tough Thermoset Epoxy Resins from Hyperbranched Topological Structure and Subnanoscaled Free Volume

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