Shape Memory Epoxy Resin and Its Composites: From Materials to Applications

Area of Science:

• Materials Science
• Polymer Chemistry
• Engineering Materials

Background:

• Shape memory polymers (SMPs) exhibit unique stimulation-responsive and variable stiffness properties.
• Epoxy resins (EPs) are recognized for excellent mechanical, fatigue, and radiation resistance, making them promising for SMP development.
• Significant progress has been observed in aerospace, civil engineering, and other industries utilizing SMPs.

Purpose of the Study:

• To explore the molecular design and network construction of shape memory epoxy resins (SMEPs).
• To regulate the performance and functionality of SMEPs through tailored design.
• To introduce multifunctional and high-performance SMEPs with advanced properties.

Main Methods:

• Focus on molecular design strategies for epoxy resin-based shape memory polymers.
• Investigate network construction techniques to achieve desired material properties.
• Detail the development of multifunctional SMEPs, including multi-shape, two-way, enhanced toughness, and temperature-resistant variants.

Main Results:

• Demonstration of multifunctional and high-performance SMEPs.
• Highlighting specific advancements such as multiple shape-memory capabilities, two-way shape memory effects, outstanding toughness, and high-temperature resistance.
• Showcasing emerging applications in aerospace, 4D printing, and self-healing technologies.

Conclusions:

• SMEPs offer significant potential for performance and functional regulation through molecular design and network construction.
• Emerging applications in aerospace, 4D printing, and self-healing highlight the versatility of advanced SMEPs.
• Future challenges involve integrating performance and versatility to meet evolving technological demands.