Waterborne Polyurethane Transparent Coatings for Self-Healing at Room Temperature

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Language: Английский

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Maze Effect or Antimaze Effect: The Double Effect of Modified 2D Fillers Ti₃C₂T_x on the Properties of Waterborne Polyurethane Coatings

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

Published: March 28, 2025

With a high aspect ratio and good ion barrier property, two-dimensional fillers can prevent the invasion of corrosive media by "maze effect" when showing interface compatibility with polymer. However, this blocking effect also affects release volatile substances during coating curing process, leading to an ""antimaze increase in internal defects. In work, 2-D filler Ti3C2Tx was noncovalently modified corrosion inhibitor 8-HQ dopamine one step obtain owing interfacial polyurethane. Its "antimaze waterborne polyurethane studied. The results electrochemical impedance spectroscopy water absorption test showed that exhibited best performance dosage 0.25 wt %, which reach balance. low-frequency modulus 14 times higher than control sample, saturated reduced 56.15%. enhancement mechanism coating's anticorrosion property analyzed. Results addition not only improves but reduces defects coating. used for modification enhanced adhesion. It played inhibition role subsequent long-term service or damaged. This study provides new reference application 2D organic coatings.

Language: Английский

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TiO2 loaded MIL-125 modified waterborne polyurethane coatings achieve photodegradation of formaldehyde under visible light

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136824 - 136824

Published: April 1, 2025

Language: Английский

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3D Printing Flexible Wearable Electronics with Diversified Environmentally Adaptive for Biomechanical Energy Harvesting and Personal Electromagnetic Safety

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

Published: April 7, 2025

Abstract The exploitation of wearable electronic devices with diversified environmentally adaptivity, advanced additive manufacturing, efficient microwaves absorption, and self‐powered sensing represents a pivotal strategic in promoting Artificial‐Intelligence personal electromagnetic safety. However, achieving robust multifunctional integration single flexible device is still an unprecedented challenge. Herein, the multidimensional multiphase nanofiller hierarchical structures tailored defects, comb/bottlebrush polysiloxane multifluorination multireversible bond, featuring dynamic interface interaction, are designeded. Subsequently, dual‐mode intelligent sensor assembled based on direct‐ink‐writing electrostatic‐spraying technology. 3D‐printed triboelectric nanogenerator (TENG) exhibited excellent output ( V oc = 185.4 V, I sc 1576.2nA, power density 729.8mW m −2 ) durability virtue multi‐scale roughness surface, interfacial polarization, charge trapping, storage transmission capacity. Accordingly, fabric‐based TENG designed for demonstrating human activity monitoring biomechanical energy harvesting. Benefiting from optimized impedance matching multiple magnetic‐dielectric coupling, exceptional protection behavior RL min ‐64.81 dB, EAB 5.1 GHz). Remarkably, synergistic properties superhydrophobic, oleophobic, self‐healing significantly improved reliability life‐span. This work presents as proof‐of‐concept extensive design‐freedom, pioneering sensing, safety, which will contribute to development high‐quality human‐machine healthcare, skin.

Language: Английский

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Synthesis of anti-ultraviolet and fluorescent waterborne polyurethanes with highly active plant oil-based internal emulsifiers

Resources Chemicals and Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100114 - 100114

Published: April 1, 2025

Language: Английский

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