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

Classifying Matter by Composition03:35

Classifying Matter by Composition

90.4K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...
90.4K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

75.7K
Dipole Moment of a Molecule
75.7K
VSEPR Theory and the Basic Shapes02:52

VSEPR Theory and the Basic Shapes

84.9K
Overview of VSEPR Theory
84.9K
System of Memory01:23

System of Memory

7.4K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
7.4K
Working Memory01:24

Working Memory

883
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
883
Molecular Shapes01:18

Molecular Shapes

62.0K
Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
62.0K

You might also read

Related Articles

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

Sort by
Same author

Non-precious metal-decorated BiFeO<sub>3</sub> ferroelectrics for polarization-driven efficient CO<sub>2</sub> photoreduction.

Chemical communications (Cambridge, England)·2026
Same author

Design and Implementation of High-Capacity DDR3 Micro-Module Based on 3D TSV Advanced Packaging.

Micromachines·2026
Same author

Multiscale Analysis of Size-Dependent Vibration of Graphene Nanoelectromechanical Resonators.

Micromachines·2026
Same author

Correction: Xi et al. Influence of Inlet Splitter Structure on Flow and Heat Transfer Performance in Microchannel Heat Exchangers. <i>Micromachines</i> 2026, <i>17</i>, 275.

Micromachines·2026
Same author

Enhancing tomato fruit sweetness by CRISPR/Cas9-mediated SlVIF gene editing.

Plant physiology and biochemistry : PPB·2026
Same author

Influence of Inlet Splitter Structure on Flow and Heat Transfer Performance in Microchannel Heat Exchangers.

Micromachines·2026

Related Experiment Video

Updated: Feb 2, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K

Thermoelectric Responsive Shape Memory Graphene/Hydro-Epoxy Composites for Actuators.

Yongkun Wang1, Wenchao Tian2, Jianqiang Xie3

  • 1Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an 710071, China. ykwang@xidian.edu.cn.

Micromachines
|November 9, 2018
PubMed
Summary

Graphene-enhanced hydro-epoxy composites show excellent shape memory and actuation properties. These novel materials offer a promising alternative for advanced actuator applications due to their rapid response and high recovery.

Keywords:
actuation materialsgrapheneshape memory behaviorshape memory polymer

More Related Videos

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

9.2K
Graphene Coatings for Biomedical Implants
13:21

Graphene Coatings for Biomedical Implants

Published on: March 1, 2013

21.8K

Related Experiment Videos

Last Updated: Feb 2, 2026

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.9K
Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
09:38

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

Published on: November 7, 2016

9.2K
Graphene Coatings for Biomedical Implants
13:21

Graphene Coatings for Biomedical Implants

Published on: March 1, 2013

21.8K

Area of Science:

  • Materials Science
  • Polymer Science
  • Nanotechnology

Background:

  • Traditional actuator materials often lack efficiency and speed.
  • Developing advanced materials with tunable properties is crucial for next-generation actuators.
  • Shape memory composites offer unique actuation capabilities.

Purpose of the Study:

  • To develop and characterize thermoelectric responsive shape memory hydro-epoxy (H-EP) composites.
  • To investigate the effect of varying graphene content on composite properties.
  • To evaluate the potential of these composites as actuator materials.

Main Methods:

  • Synthesis of hydro-epoxy composites with different graphene concentrations.
  • Mechanical testing, including bend strength and storage modulus.
  • Dynamic mechanical analysis (DMA).
  • Electrical property measurements.
  • Thermoelectric responsive shape memory performance evaluation.

Main Results:

  • Graphene addition significantly improved mechanical properties, with 2 wt% graphene enhancing bend strength by 47%.
  • Composites achieved a shape recovery ratio of approximately 100%.
  • Shape recovery speed increased with higher graphene content, applied voltage, and temperature.

Conclusions:

  • Graphene/hydro-epoxy composites exhibit excellent thermoelectric responsive shape memory behavior.
  • The enhanced properties and actuation performance make them suitable for actuator applications.
  • Further research into graphene-enhanced composites can lead to improved actuator technologies.