Shape memory polymer nanocomposites for application of multiple-field active disassembly: experiment and simulation

Area of Science:

• Materials Science
• Engineering
• Polymer Science

Background:

• Active disassembly (AD) utilizes smart materials for controlled product deconstruction.
• Current AD methods face challenges with single-field actuation, leading to accidental disassembly.
• Improved disassembly enhances component reuse and recycling stream purity.

Purpose of the Study:

• To investigate the application of shape memory polymer (SMP) nanocomposites in a novel AD process.
• To develop and analyze an AD process utilizing multi-field actuation for SMP nanocomposite fasteners.
• To address the limitations of single-field actuation in AD systems.

Main Methods:

• Development of SMP nanocomposites for AD applications.
• Implementation of a multi-field actuation strategy (thermal and magnetic).
• Finite-element analysis (FEA) to model and simulate the AD process.

Main Results:

• Experimental testing of SMP nanocomposites under thermal and magnetic fields.
• FEA simulations provided performance variables for the multi-field AD process.
• The SMP nanocomposite fastener demonstrated superior performance time compared to conventional SMP fasteners.

Conclusions:

• Multi-field actuation of SMP nanocomposites presents a viable solution for controlled active disassembly.
• The novel AD process mitigates risks associated with accidental disassembly.
• SMP nanocomposites show significant potential for advancing sustainable end-of-life product management.