Rapidly recyclable, monomer recovery and flame-retardant bio-based polyimine networks

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148024 - 148024

Published: Jan. 2, 2024

Language: Английский

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Strong yet Tough Catalyst‐Free Transesterification Vitrimer with Excellent Fire‐Retardancy, Durability, and Closed‐Loop Recyclability

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 31, 2024

Despite great advances in vitrimer, it remains highly challenging to achieve a property portfolio of excellent mechanical properties, desired durability, and high fire safety. Thus, catalyst-free, closed-loop recyclable transesterification vitrimer (TPN

Language: Английский

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A transparent epoxy vitrimer with outstanding flame retardancy, toughness, and recyclability enabled by a hyperbranched P/N-derived polyester

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 470, P. 140673 - 140673

Published: March 6, 2025

Language: Английский

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Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Carbon fiber reinforced thermoplastics (CFRTs) have witnessed a resurgence in recent times since their first industrial use over five decades ago, with revitalized interest from aerospace companies and other key sectors including energy automotive sectors. CFRTs are increasingly gaining footholds high volume rapid manufacturing nonaerospace owing to inherent recyclability. However, there has been lack of contemporary critical review on this topic so far. This work aims the advances emphasis performance thermoplastics. Both continuous discontinuous forms tape, organosheet short/long architectures discussed, processing postprocessing methods reviewed, state‐of‐the‐art welding techniques. Typical applications industry examined, fuselage, pressure vessel, components. Finally, insights provided into ongoing challenges, future development, roadmap for expediting development high‐performance CFRTs.

Language: Английский

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Mechanically Robust, Recyclable, and Self‐Healing Polyimine Networks

Advanced Science, Journal Year: 2023, Volume and Issue: 10(19)

Published: April 23, 2023

To achieve energy saving and emission reduction goals, recyclable healable thermoset materials are highly attractive. Polymer copolymerization has been proven to be a critical strategy for preparing high-performance polymeric materials. However, it remains huge challenge develop Here, polyimine dynamic networks based on two monomers with bulky pendant groups, which not only displayed mechanical properties higher than the strong tough polymers, e.g., polycarbonate, but also excellent self-repairing capability recyclability as thermosets developed. Owing stability of conjugation effect by aromatic benzene rings, final far more stable reported counterparts, exhibiting hydrolysis resistance under both alkaline condition most organic solvents. These structure can completely depolymerized into recovery in an acidic aqueous solution at ambient temperature. Resulting from units, this method allows exchange reactions vitrimer easily within minutes self-healing function. Moreover, introduction trifluoromethyl diphenoxybenzene backbones significantly increases tensile This work provides effective fabricating polymer multiple functions.

Language: Английский

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A strong, biodegradable, and closed-loop recyclable bamboo-based plastic substitute enabled by polyimine covalent adaptable networks

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 146952 - 146952

Published: Oct. 27, 2023

Language: Английский

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Ultrastrong, High Fire Resistance, Repairable, and Recyclable Fluorinated Biobased Polyimine Networks

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(8), P. 3899 - 3908

Published: July 25, 2024

Traditional commercial thermosetting materials are currently facing significant challenges in terms of reprocessing, degradation, and recycling because a large demand petroleum resources, leading to environmental burden. In our work, trialdehyde monomer synthesized by renewable resource reacted with 1,4-Bis(4-amino-2-trifluoromethylphenoxy)benzene 1,4-Bis(4-aminophenoxy)benzene form dynamic cross-linked network called BQPs. The fluorinated biobased polyimine material exhibits exceptional mechanical properties tensile strength 96.2 MPa, which is much higher than plastics such as polycarbonate (∼65 MPa). Moreover, it demonstrates excellent flame retardancy achieving level V0 rating the UL-94 test value 50% limiting oxygen index test. Additionally, can be easily reprocessed within 10 min at high temperature (160 °C) rapidly repaired solvent. Overall, this high-performance product will significantly contribute expanding development materials.

Language: Английский

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Advanced Crosslinked Solid Polymer Electrolytes: Molecular Architecture, Strategies, and Future Perspectives

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Abstract Solid‐state batteries (SSBs) have attracted much attention for high‐energy‐density and high‐safety energy storage devices. Solid polymer electrolytes (SPEs) emerged as a critical component in the advancement of SSBs, owing to compelling advantages strong molecular structure‐designability, low cost, easy manufacturing, no liquid leakage. However, linear SPEs usually room‐temperature ionic conductivity due crystallization, melting at high temperature. Thus, crosslinked been proposed that chemical bonding between internal molecule chains can maintain solid state expand operational temperature, disrupt regularity segment, diminish crystalline degree, leading an enhancement conductivity. Furthermore, integration functional groups within SPE network significantly augment electrochemical performance SPEs. Herein, according structure, are categorized into four types: simple network, AB polymers (ABCP), semi‐interpenetrating (semi‐IPN), interpenetrating (IPN), then structure features disadvantages commonly used these types reviewed. In addition, with self‐healing, flame‐retardant, degradable, recyclability introduced. Finally, challenges prospects summarized, hoping provide guidance design future.

Language: Английский

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Room-Temperature intrinsic Self-Healing Materials: A review

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155158 - 155158

Published: Aug. 25, 2024

Language: Английский

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Soft‐Rigid Construction of Mechanically Robust, Thermally Stable, and Self‐Healing Polyimine Networks with Strongly Recyclable Adhesion

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 11, 2024

Abstract Reversible and recyclable thermosets have garnered increasing attention for their smart functionality sustainability. However, they still face challenges in balancing comprehensive performance dynamic features. Herein, silicon (Si)─oxygen (O) imidazole units covalent bonds are coupled to generate a new class of bio‐polyimines (Bio‐Si‐PABZs), endow them with high excellent reprocessing capability acid‐degradability. By tailoring the molar content diamines, this Bio‐Si‐PABZs displayed both markedly glass transition temperature (162 °C) char yield at 800 °C an oxygen atmosphere (73.1%). These favorable properties outperformed various previously reported polyimines competed effectively commercial fossil‐based polycarbonate. Moreover, scratch (≈10 µ m) on surface samples can be self‐healing within only 2 min, effective “ Bird Nest ”‐to‐“ Torch ” recycling also achieved through free amines solution. Most importantly, bio‐based siloxane adhesive derived from intermediate Bio‐Si‐PABZ‐1 by acidic degradation demonstrated broad robust adhesion substrates, values reaching up ≈3.5 MPa. For first time, study lays scientific groundwork designing polyimine Si─O units, as well converting plastic wastes into thermal‐reversibility renewable adhesives.

Language: Английский

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