MDPI Paper: PEG-Crosslinked Waterborne Polyurethane Solid-Solid PCMs Offer Leak-Free Thermal Regulation for Textiles

July 19, 2026

ResearchGate (MDPI Polymers) Unknown

Overview

A paper in MDPI Polymers reports the development of crosslinked waterborne polyurethane solid-solid phase change materials (PUSSPCMs) containing polyethylene glycol (PEG) for thermoregulating textiles. This novel material eliminates leakage during heating processes while demonstrating high latent heat storage capacity and excellent thermal stability. This represents a significant advancement, offering a new solution for thermal energy storage in next-generation smart textiles and apparel, enhancing wearer comfort and energy-efficient garment design.

In Depth

Key Findings

A research paper published in MDPI Polymers details the development of novel crosslinked waterborne polyurethane solid-solid phase change materials (PUSSPCMs) incorporating polyethylene glycol (PEG), specifically engineered for thermoregulating textiles. This innovative material exhibits a critical advantage: it completely prevents liquid leakage during the phase change process upon heating, while also demonstrating high latent heat storage capacity and excellent thermal stability. This marks a substantial advance in thermal management technology for the smart textile sector.

Technical / Clinical Details

The developed PUSSPCMs are constructed by chemically crosslinking PEG segments within a waterborne polyurethane network. This crosslinked structure ensures that the material maintains its solid state even when PEG undergoes melting and solidification, eliminating the risk of liquid leakage—a common problem with traditional phase change materials (PCMs) during heat absorption and release cycles. Experimental results confirmed the material’s high thermal storage capability (latent heat capacity) and its stability over repeated heating and cooling cycles, meeting the durability requirements for textile applications.

Background & Context

The demand for smart textiles with thermoregulating capabilities is rapidly growing across diverse sectors, including sportswear, protective clothing, medical apparel, and general fashion. Previous attempts to integrate PCMs into textiles faced significant practical barriers due to issues like liquid leakage, low durability, and processing difficulties. PUSSPCMs address these challenges by offering an environmentally friendly, water-based manufacturing process, combined with leak prevention through crosslinking and superior thermal properties. This breakthrough paves the way for the development of more comfortable and functional clothing.

Strategic Significance & Outlook

This PUSSPCMs technology has the potential to establish a new paradigm in the field of thermal energy storage. Beyond textile applications, it is expected to find broad deployment in building materials, thermal management of electronic devices, and even automotive interiors. Researchers and engineers will focus on further optimizing the material, reducing production costs, and developing large-scale manufacturing processes. This will enable consumers to experience greater comfort year-round and empower industries to create innovative, energy-efficient products. Investors are likely to show significant interest in the potential growth of this technology within the smart textile and thermal management markets.

Source: https://www.researchgate.net/publication/409249241_Crosslinked_Waterborne_Polyurethane_Solid-Solid_Phase_Change_Materials_with_Polyethylene_Glycol_for_Thermoregulating_Textiles

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