Self‐Adhesive Polydimethylsiloxane Foam Materials Decorated with MXene/Cellulose Nanofiber Interconnected Network for Versatile Functionalities

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(48)

Published: July 17, 2023

Abstract Polydimethylsiloxanes (PDMS) foam as one of next‐generation polymer materials shows poor surface adhesion and limited functionality, which greatly restricts its potential applications. Fabrication advanced PDMS with multiple functionalities remains a critical challenge. In this study, unprecedented self‐adhesive are reported worm‐like rough structure reactive groups for fabricating multifunctional nanocomposites decorated MXene/cellulose nanofiber (MXene/CNF) interconnected network by facile silicone foaming dip‐coating strategy followed silane modification. Interestingly, such produces strong interfacial the hybrid MXene/CNF nano‐coatings. Consequently, optimized have excellent super‐hydrophobicity (water contact angle ≈159 o ), tunable electrical conductivity (from 10 −8 to S m −1 stable compressive cyclic reliability in both wide‐temperature range −20 200 C) complex environments (acid, sodium, alkali conditions), outstanding flame resistance (LOI value >27% low smoke production rate), good thermal insulating performance reliable strain sensing various stress modes environmental conditions. It provides new route rational design development versatile multifunctionalities promising applications intelligent healthcare monitoring fire‐safe insulation.

Language: Английский

---

2D MXenes for Fire Retardancy and Fire‐Warning Applications: Promises and Prospects

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(9)

Published: Dec. 16, 2022

Abstract Frequent fire disasters have caused massive impacts to the environment, human beings, and economy. MXene has recently been intensively researched as potential flame retardants provide passive protection for other materials via its physical barrier catalyzing carbonization effects. In parallel, also demonstrated a great promise creating early warning sensors, which is an emerging field that active response through thermoelectric effect. This makes it possible integrate retardancy into one MXene‐based system on demand. However, fulfilling these promises needs more research. Herein, overview of flame‐retardant next‐generation smart materials/sensors based derivatives provided. study reviews their conceptual design, characterization, modification principles, performances, applications, mechanisms. A discussion challenges need be solved future practical applications opportunities presented.

Language: Английский

---

Color adjustable, mechanically robust, flame-retardant and weather-resistant TiO2/MMT/CNF hierarchical nanocomposite coatings toward intelligent fire cyclic warning and protection

Composites Part B Engineering, Journal Year: 2023, Volume and Issue: 271, P. 111159 - 111159

Published: Dec. 21, 2023

Language: Английский

---

Facile fabrication of low-content surface-assembled MXene in silicone rubber foam materials with lightweight, wide-temperature mechanical flexibility, improved flame resistance and exceptional smoke suppression

Composites Part A Applied Science and Manufacturing, Journal Year: 2023, Volume and Issue: 177, P. 107907 - 107907

Published: Nov. 17, 2023

Language: Английский

---

Natural microfibrils/regenerated cellulose-based carbon aerogel for highly efficient oil/water separation

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 454, P. 131397 - 131397

Published: April 12, 2023

Language: Английский

---

Regenerated cellulose/chitosan composite aerogel with highly efficient adsorption for anionic dyes

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 244, P. 125067 - 125067

Published: May 26, 2023

Language: Английский

---

Preparation of ambient-dried multifunctional cellulose aerogel by freeze-linking technique

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 147044 - 147044

Published: Oct. 31, 2023

Language: Английский

---

Lightweight, surface hydrophobic and flame-retardant polydimethylsiloxane foam composites coated with graphene oxide via interface engineering

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 189, P. 108276 - 108276

Published: Feb. 6, 2024

Language: Английский

---

Synthesis of Hybrid/Superhydrophobic Coupling Agent Grafted Nano SiO2 and Its Use in Fabrication of Rubber Nanocomposite with Outstanding Oil/Water Separation Capability

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102270 - 102270

Published: May 15, 2024

Design and synthesis of a new sorbent with high performances oil-water separation is one the challenges to world community. Herein, superhydrophobic/novel coupling agent (NCA) containing several vinyl groups was synthesized. Also, isocyanate (VI) tetraethoxysilane (TEOS) reacted synergetic strategy crosslinked networks through click reaction under N2 gas atmosphere. 1H-NMR FTIR analyses confirmed formation NCA SiC10H18O6N2 chemical formula. Then, grafted on nanoparticles at different amounts by sol-gel method. It found that surface modification enhanced water contact angle (WCA) from 60° 163°. In following, without were applied contents tire rubber compound. The uniform dispersion/distribution nano fillers in polymer matrix strong filler-polymer interactions crosslink density improved mechanical sample. prepared nanocomposites tested against absorption oils. results showed superior nanocomposite modified (i.e. TR-TNS5) had efficiency over 90% compared pure TR-NS5) which less than 30%. cycle 95% after addition (from 240 440 cycles). illustrated angles 153.22° 13.34° oil droplets, respectively. rubbery performances.

Language: Английский

---

Ultralight Three‐Layer Gradient‐Structured MXene/ Reduced Graphene Oxide Composite Aerogels with Broadband Microwave Absorption and Dynamic Infrared Camouflage

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

Published: May 2, 2024

Abstract Infrared and radar detectors posed substantial challenges to weapon equipment personnel due their continuous surveillance reconnaissance capabilities. Traditional single‐band stealth devices are insufficient for dual‐band detection in both infrared microwave bands. To overcome this limitation, a gradient‐structured MXene/reduced graphene oxide (rGO) composite aerogel (GMXrGA) is fabricated through two‐step bidirectional freeze casting process, followed by freeze‐drying thermal annealing. GMXrGA exhibits distinct three‐layered structure, with each layer playing crucial role absorption. This deliberate design amplifies the efficiency of absorption material's effectiveness dynamic camouflage. displays an ultralow density 5.2 mg∙cm −3 demonstrates exceptional resistance compression, enduring 200 cycles at maximum strain 80%. Moreover, it shows superior performance, minimum reflection loss ( RL min ) –60.1 dB broad effective bandwidth EAB 14.1 GHz (3.9–18.0 GHz). Additionally, low conductivity (≈26 mW∙m −1 ∙K camouflage capabilities within temperature range 50–120 °C, achieving rapid concealment 30 s. Consequently, they hold great potential diverse applications, including intelligent buildings, wearable electronics, equipment.

Language: Английский

---