Property of Protection against Simultaneous Action between Atomic Oxygen Erosion and Ultraviolet Irradiation by MIL-53(Al) Coating DOI Creative Commons
Rui Sun, Yuzhi Zhang, Hongyu Gu

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(47), P. 47324 - 47331

Published: Nov. 12, 2024

Rapid development of coatings with resistance to the space irradiation environment low Earth orbit (LEO), which benefits long-duration exploration missions in LEO, improves challenging urgency revealing interaction between atomic oxygen (AO) erosion and ultraviolet (UV) irradiation. Here, we investigated simultaneous action AO UV using polyimide (PI) MIL-53(Al)-coated PI, confirming a synergistic enhancement effect 21.20 14.96% compared that alone. The was verified by more stable chemical state lower yield (Ey = 4.386 × 10–25 cm3/atom, 12% pristine PI). Through first-principles calculations, processes involve formation inert oxides, maintaining an unchanged framework widening band gap due microstructure transformation, respectively. Based on these, explained, boundaries nanoparticle generation during provided pathway for probability collision reduce kinetic energy AO. This work puts forward novel investigation confirms application potential MIL-53(Al), offers new idea protect spacecraft.

Language: Английский

Advances in Shape‐Memory Polymers and Composites for Biomedical Device Applications DOI Open Access

Chengjun Zeng,

Liwu Liu, Wei Zhao

et al.

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

Published: Jan. 29, 2025

Over the past two decades, remarkable advancements have been achieved in stimulus‐responsive shape‐memory polymers (SMPs), which exhibit desirable properties such as characteristics, deformability, and biocompatibility, while responding to external stimuli. The development of polymer composites (SMPCs) leads high recovery forces novel functionalities, including electrical actuation, magnetic biocompatibility. enhanced remotely controllable functionality further expand application SMPs biomedical areas, surgical applications for replacing handheld instruments drug delivery systems. In this review, device SMPCs are focused on their recent bone tissue scaffolds, lumen stents, carriers examined. Furthermore, bottlenecks challenges encountered by devices elucidated. future trend is also discussed, aiming provide valuable insights broadening fields.

Language: Английский

Citations

0
4d Printing of Novel Polybenzimidazole-Containing Structures with Exceptional Radiation Resistance and Mechanical Properties DOI
Kseniia N. Bardakova, Б. Ч. Холхоев, Zakhar A. Matveev

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
4D printing of novel polybenzimidazole-containing structures with exceptional radiation resistance and mechanical properties DOI
Kseniia N. Bardakova, Б. Ч. Холхоев, Zakhar A. Matveev

et al.

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102734 - 102734

Published: April 17, 2025

Language: Английский

Citations

0
Property of Protection against Simultaneous Action between Atomic Oxygen Erosion and Ultraviolet Irradiation by MIL-53(Al) Coating DOI Creative Commons
Rui Sun, Yuzhi Zhang, Hongyu Gu

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(47), P. 47324 - 47331

Published: Nov. 12, 2024

Rapid development of coatings with resistance to the space irradiation environment low Earth orbit (LEO), which benefits long-duration exploration missions in LEO, improves challenging urgency revealing interaction between atomic oxygen (AO) erosion and ultraviolet (UV) irradiation. Here, we investigated simultaneous action AO UV using polyimide (PI) MIL-53(Al)-coated PI, confirming a synergistic enhancement effect 21.20 14.96% compared that alone. The was verified by more stable chemical state lower yield (Ey = 4.386 × 10–25 cm3/atom, 12% pristine PI). Through first-principles calculations, processes involve formation inert oxides, maintaining an unchanged framework widening band gap due microstructure transformation, respectively. Based on these, explained, boundaries nanoparticle generation during provided pathway for probability collision reduce kinetic energy AO. This work puts forward novel investigation confirms application potential MIL-53(Al), offers new idea protect spacecraft.

Language: Английский

Citations

0