Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 8(1)
Published: Dec. 24, 2024
Language: Английский
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 13, 2024
Abstract Phase change materials (PCMs) with remarkable latent heat storage/release capacity have demonstrated prominent advantages in energy conservation and efficient thermal management. Nevertheless, simultaneously achieving high storage capacity, excellent toughness, flexibility PCMs is a significant challenge for programmable deformations when used complex environmental scenarios. A flexible PCM reported deformation constructed through three‐dimensional (3D) dynamic cross‐linked network. This approach has culminated the development of homogeneously self‐supporting polyurethane‐based solid‐solid graphene enhancement, which exhibits exceptional properties (∆ H m = 105.3 J g −1 , ∆ c 105.0 ), toughness ( ε 1543%, σ 19.2 MPa), flexibility, shape memory behavior R r 90.3%). Notably, subjected to photothermal stimulation, it can lift objects weighing more than 2620 times their weight, presenting working density 1330 kJ −3 . PCM, possesses photothermal‐driven performance, opens new pathway artificial muscles or soft robots requirements management
Language: Английский
Citations
2
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153895 - 153895
Published: July 11, 2024
Language: Английский
Citations
1
Journal of Polymer Science, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 14, 2024
ABSTRACT High‐voltage responsiveness and poor mechanical properties hindered the practical applications of electro‐induced shape‐changing hydrogels (EISCHs). In previous work, were improved simply by increasing degree crosslinking, which resulted in reduced deformation capacity. Therefore, nanocomposite technique reinforcing nondeformable hydrogels' was introduced into EISCHs, resulting successful synthesis Poly (N‐isopropylacrylamide‐co‐5‐acrylamido‐1,10‐phenanthroline bis (1,10‐phenanthroline) iron (II))/hydrophilic‐treated hydroxylated carbon nanofibers (P(NIPAM‐Fe(phen) 3 )/HMWCNFs) hydrogel that exhibits outstanding properties, doesn't have its ability weakened possesses low‐voltage this work. The impact various hydrophilic‐treated (HMWCNFs) content on structure, swelling, mechanics investigated. As HMWCNFs increased (0.2%–1.0%), tensile compressive strengths increased, marking 6.67 times 2.91 rise over without HMWCNFs. P(NIPAM‐Fe(phen) /HMWCNFs) higher than at minimum response voltage 10 V. physical entanglements hydrogen bonding between polymer chains adhesion energy provided dissipation. HMWCNFs, as a conductive filler, facilitated electron transfer. swelled shrank due to transition 5‐acrylamido‐1,10‐phenanthroline (II) (Fe(phen) ) network (III) states under stimulation.
Language: Английский
Citations
1
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: March 11, 2024
Abstract This study reports for the first time an innovative pH/magnetic dual-responsive hemicellulose-based nanocomposite hydrogel with a nearly 100% bio-based and biodegradable compositions. We synthesized pure Fe 3 O 4 magnetic nanoparticles (Fe MNPs) using co-precipitation, then engineering xylan hemicellulose (XH), acrylic acid (AA), polyethylene glycol diacrylate (PEGDA), MNPs to synthesize @XH-Gel), through free radical graft polymerization on natural XH in-situ doping initiated by ammonium persulfate/tetramethylethylenediamine (APS/TMEDA) redox system. Fourier transform infrared spectroscopy (FTIR), nuclear resonance ( 1 H-NMR), X-ray diffractometry (XRD), scanning electron microscopy energy dispersive spectrometer (SEM-EDS), Brunauer-Emmett-Teller (BET), dynamic light scattering (DLS), swelling gravimetric analysis, vibrating sample magnetometer (VSM) were employed analyze hydrogel’s chemical structures, surface morphologies, pH-responsive behaviors, responsiveness characteristics. The results indicate that @XH-Gel exhibited excellent dual pH magnetism. Furthermore, emphasis was placed in-depth analysis of response mechanism drug release control. Finally, we utilized this cutting-edge investigate controlled-release behavior two model drugs, Acetylsalicylic Theophylline , within simulated gastrointestinal tract. demonstrated exceptional controlled attributes, positioning it as potential carrier targeted delivery, particularly conditions.
Language: Английский
Citations
0
Applied Materials Today, Journal Year: 2024, Volume and Issue: 39, P. 102315 - 102315
Published: July 12, 2024
Language: Английский
Citations
0
Published: Jan. 1, 2024
Language: Английский
Citations
0
Materials Horizons, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
Preparation methods and applications of helical fibers.
Language: Английский
Citations
0
Microchemical Journal, Journal Year: 2024, Volume and Issue: 208, P. 112413 - 112413
Published: Dec. 10, 2024
Language: Английский
Citations
0
Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 9, 2024
Language: Английский
Citations
0
Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 34(1), P. 015057 - 015057
Published: Dec. 17, 2024
Abstract Dual-response can respond to multiple stimuli and overcome the limitations of a single response, especially in biomimetic applications where large deformations high stiffness are demand. This soft gripper fabricated with new multi-section design is novel dual-response actuator that combines silicone magnetic NdFeB particles, highlighting advantages hybrid pneumatic actuation achieve bending behavior efficient at low pressure. The position center section changed by adjusting internal Here, an umbrella-rib-like proposed, inspired process umbrella using deployable foldable mechanisms, joint designed for act like ribs such bend-folding location does not change much on robot different pressures. preparation this grippers provides proficiency wide application medical, industry so on.
Language: Английский
Citations
0