Non-covalent bonding induced superior fire resistance of functionalized graphene oxide and carbon nanotubes paper for Joule heating and ultra-durable fire alarming DOI
Ao Cai,

Cunjiong Fang,

Lingfeng Pan

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 515, P. 163467 - 163467

Published: May 6, 2025

Language: Английский

Epoxy Vitrimer with Excellent Mechanical Properties and High Tg for Detachable Structural Adhesives DOI
Anping Dong,

Qiguang Liu,

Huarui Yao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(9), P. 14578 - 14590

Published: Feb. 22, 2025

It is a long-standing challenge for thermoset resins to simultaneously achieve outstanding thermomechanical and mechanical properties as well rapid network reconfiguration due the trade-off between chemical bond transformation stability of network. The design vitrimer topology an effective strategy address above issues. Here, we prepared epoxy material (DGEBA-API-MHHPA) with excellent high glass-transition temperature (Tg) by introducing rigid-flexible integrated side chains [1-(3-aminopropyl) imidazole (API)], which endow DGEBA-API-MHHPA multiple interactions including "internal antiplasticization" effect, intermolecular hydrogen bonds, π-π interactions. Moreover, introduction Zn2+ facilitates transesterification, enabling fast rearrangement Specifically, relaxation time DGEBA-API0.2-MHHPA0.8-Zn reaches 65 s at 200 °C. Meanwhile, Zn2+-imidazole coordination bonds energy dissipation improve toughness resulting exhibits self-healing recyclable behaviors possesses 80.3 MPa tensile strength, 3.25 GPa Young's modulus, 7.2 MPa·m1/2 fracture (KIC), Tg 129 Concurrently, can be applied detachable structural adhesives various substrates used matrixes electrically composites. This skillful widely referenced in large-scale manufacturing high-performance dynamic covalent their composites performance.

Language: Английский

Citations

1
Biomimetic Nanostructured Polyimine Aerogels with Graded Porosity, Flame Resistance, Intrinsic Superhydrophobicity, and Closed-Loop Recovery DOI
Hongfei He,

Lu Liu,

Hongliang Ding

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(52), P. 35465 - 35479

Published: Dec. 16, 2024

Polymer aerogels, with their porous and lightweight features, excel in applications such as energy storage, absorption, thermal insulation, making them a sought-after new material. However, the covalent cross-linking networks of current polymer aerogels result unsustainable manufacturing processing practices, persistently depleting our finite natural resources causing significant global environmental impacts. Herein, we have constructed high-performance dynamic aerogel network using biobased materials, its structure green sustainability akin to those plants nature. Abundant reversible points endow ultrafast degradation capabilities, enabling allow for closed-loop chemical monomer recovery reprocessing. Furthermore, utilizing highly active network, net-zero emission material reuse reprocessing can be achieved. Additionally, controlled features multilevel roughness nanostructured surface similar lotus leaf biomimetic pore structure, contributing anisotropy. The distinctive composition high compressive strength (2.2 MPa) vertically, low conductivity (0.0257 W/(m·K)) horizontally, outstanding fire resistance (LOI is 36%). Notably, demonstrates highest hydrophobicity among polyimine contact angle 154°. excellent performance variety potential oil–water separation, directional transport, phase change it anticipated that these will greatly benefit from systematic upgrades recyclability

Language: Английский

Citations

6
“Rigid-Flexible” structured polyimine/graphite felt composites with excellent fire Resistance, electromagnetic shielding and recyclability DOI
Jue Wang,

Hongliang Ding,

Zhuyun Bi

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 501, P. 157610 - 157610

Published: Nov. 12, 2024

Language: Английский

Citations

4
Degradable silver-plated epoxy foams with exceptional Joule heating and electromagnetic shielding properties DOI

Yabing Tian,

Xuezhen Feng, Jingfeng Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161065 - 161065

Published: Feb. 1, 2025

Language: Английский

Citations

0
Interface and mechanical properties of combined surface‐treated carbon fiber fabrics/polyimine laminates: Experiments and numerical simulations DOI Creative Commons
Si Zhang, Zifan Wang,

Chuanbo An

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Abstract Carbon fiber reinforced polyimine (CF/PI) composites had promising applications due to their flame retardancy and ease of recyclability. However, the mechanical properties CF/PI are generally insufficient, optimizing interface between carbon (CF) fabrics (PI) matrix could effectively solve this problem. The interfacial bonding CF PI was enhanced by a combination pre‐treatment grafting with silane coupling agent (APTMS). laminates were prepared “pre‐fabrication‐lamination” method optimize production cycle. Interlaminar delamination failure analyzed using cohesive element method. experimental results showed that grafted APTMS treatment increased impact strength, flexural interlaminar shear strength (ILSS) 227.5%, 158.2%, 259.8%, respectively. simulation excellent agreement results. scanning electron microscopy morphology fracture surface primary damage mechanism, which consistent delamination. In paper, strategy for optimization proposed first time, reliable numerical provided. Highlights produced “pre‐fabrication‐lamination”. Enhanced grafting. significant improvements in ILSS. Cohesive accurately predicts error less than 5%.

Language: Английский

Citations

0
Robust and tough polyamide hot-melt adhesives inspired by intersecting structures of plant cell walls and cytoplasm: Design for environmental adaptability DOI
Huajun Sun,

Kangbo Yang,

Nan Xiang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162564 - 162564

Published: April 1, 2025

Language: Английский

Citations

0
Mechanically Robust, Hydrophobic, and Recyclable Dynamic Aerogels via Organic–Inorganic Hybridization DOI
Qirui Huang, Wei Hong, Haiyue Wang

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Language: Английский

Citations

0
Intermolecular hydrogen bonding enabling mechanically robust, thermally stable, and solvent-resistance bio-based polyimine networks DOI

Hongliang Ding,

Jue Wang, Chuanshen Wang

et al.

Composites Part A Applied Science and Manufacturing, Journal Year: 2025, Volume and Issue: unknown, P. 109006 - 109006

Published: May 1, 2025

Language: Английский

Citations

0
Highly transparent, mechanically strong, recyclable, and flame-retardant vanillin-modified poly(urethane-urea) elastomers via dynamic oxime-urethane bonds and hydrogen bonds DOI

Hongliang Ding,

Lu Liu, Chuanshen Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163416 - 163416

Published: May 1, 2025

Language: Английский

Citations

0
Non-covalent bonding induced superior fire resistance of functionalized graphene oxide and carbon nanotubes paper for Joule heating and ultra-durable fire alarming DOI
Ao Cai,

Cunjiong Fang,

Lingfeng Pan

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 515, P. 163467 - 163467

Published: May 6, 2025

Language: Английский

Citations

0