Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Fiber Reinforced Concrete01:22

Fiber Reinforced Concrete

Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
Accelerators01:17

Accelerators

Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Homologous supramolecular confinement in a cyano-functionalized MOF enables rapid Li<sup>+</sup> transport in composite polymer electrolytes.

Chemical communications (Cambridge, England)·2026
Same author

Wavelength-Division Holographic Multiplexing via Cascaded Metasurfaces and THz-Spaced Microresonator Frequency Combs.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Isomerization dynamics of dicationic CS2 and OCS driven by electron-impact.

The Journal of chemical physics·2026
Same author

<i>De novo</i> design of dual-target mini-binders simultaneously neutralizing <i>Streptococcus equi subspecies zooepidemicus</i> M-like protein and host TNFR1 confers complete protection against lethal infection.

Materials today. Bio·2026
Same author

All-Polyimide-Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Ammonia-Resistant Carbon-Encapsulated Cobalt Catalyst for Electrocatalytic Nitrate Reduction to Volatile Ammonia.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Jun 27, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.4K

4D Printed Shape Memory Polyimide Composite Aerogels with High Recovery Stress for Load Driving.

Miaomiao Geng1, Tuo Liu1, Xu Zhang1

  • 1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China.

ACS Applied Materials & Interfaces
|February 19, 2025
PubMed
Summary

New 4D printed polyimide aerogels offer high recovery stress for aerospace applications. These lightweight, high-temperature resistant materials can drive significant structural deformations, overcoming previous limitations.

Keywords:
4D printingaerogelpolyimiderecovery stressshape memory

More Related Videos

Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration
14:24

Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration

Published on: March 12, 2014

12.3K
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

12.6K

Related Experiment Videos

Last Updated: Jun 27, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.4K
Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration
14:24

Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration

Published on: March 12, 2014

12.3K
Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
09:37

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

12.6K

Area of Science:

  • Materials Science
  • Aerospace Engineering
  • Polymer Science

Background:

  • Shape memory polyimide aerogels are promising for aerospace due to their lightweight and high-temperature resistance.
  • Low recovery stress in these aerogels limits their use in driving structural deformations.

Purpose of the Study:

  • To develop a 4D printed shape memory polyimide/polyimide nanofiber (PI/PIF) composite aerogel with enhanced recovery stress for load-driving applications at high temperatures.
  • To investigate the role of double-curve macrostructures in improving recovery stress.

Main Methods:

  • Fabrication of PI/PIF composite aerogels using 4D printing technology.
  • Design of double-curve macrostructures to enhance elastic strain energy absorption.
  • Characterization of aerogel density, recovery stress, and load-driving capabilities.

Main Results:

  • The 4D printed PI/PIF aerogels exhibit low density (0.09 g cm⁻³) and high specific recovery stress (2.8 N mm kg⁻¹).
  • The aerogels successfully drove deformations equivalent to 10 times their own weight.
  • Double-curve macrostructures effectively absorbed strain energy, boosting recovery stress.

Conclusions:

  • The developed PI/PIF aerogels demonstrate superior shape memory performance and high recovery stress, suitable for aerospace components.
  • The 4D printing approach with double-curve macrostructures offers a viable strategy to overcome the limitations of traditional shape memory aerogels.
  • These advanced aerogels are expected to broaden the application scope of lightweight shape memory materials in aerospace driving components.