A few days ago, while organizing some old materials, I came across a fascinating collection of industry documents discussing high-end technical textiles. It got me thinking—how much of what was considered “cutting-edge” just a few years ago is still relevant today? The materials introduced five innovative concepts: Internet fabrics, hydrophobic coatings, second-skin polymers, Infinergy particles, and carbon nanotubes. I decided to take a closer look at where these technologies stand now. The results were both encouraging and, in some cases, more nuanced than expected.
What’s Changed in Recent Years
Let me walk you through each material and share what I found about their current status.
Internet Fabrics: Progress with Practical Limits
Internet fabrics once sounded almost futuristic—textiles that could connect to the internet. Today, elements of this vision have begun to materialize through the broader field of smart textiles.
Researchers have developed flexible electronic components, including sensors and energy storage prototypes based on materials like carbon nanotubes and graphene. These systems can be integrated into fabrics to monitor physiological signals or environmental conditions.
However, while flexible batteries and conductive fibers are advancing, their energy density and durability still limit real-world applications. For example, powering small sensors or transmitting low-energy signals is increasingly feasible, but using clothing to charge consumer devices like smartphones remains impractical with current technology.
In short, connected clothing is becoming a reality—but in a more gradual and application-specific way than early visions suggested.
Hydrophobic Coatings: From Lab to Durable Applications
Hydrophobic coatings inspired by lotus leaves have been studied for decades, and this principle remains foundational. What has improved is the durability and multifunctionality of these coatings.
Recent research shows that cotton fabrics treated with composite coatings—such as epoxy resin, silica, and polydimethylsiloxane—can achieve contact angles above 150°, placing them in the superhydrophobic category. These surfaces effectively repel water and resist contamination.
Importantly, some formulations demonstrate improved resistance to abrasion and chemical exposure, although performance can vary depending on processing conditions. In practical applications, hydrophobic textiles are now used in outdoor gear, medical fabrics, and protective clothing. In some cases, additional functionalities such as UV resistance or antimicrobial properties are incorporated, though often with trade-offs in cost or durability.
Second-Skin Polymers: Expanding Beyond Cosmetics
Early discussions of skin-mimicking polymers focused largely on cosmetic applications, such as breathable films to improve skin appearance. Today, the field has expanded, particularly in medical and wearable technology contexts.
Thin polymer films that mimic certain mechanical properties of skin have been developed and are being explored for wound care, drug delivery, and protective barriers. Some experimental systems incorporate biocompatible materials and aim to match skin elasticity and permeability.
There is also ongoing research into integrating flexible electronics—such as sensors or simple communication components—into skin-like materials. However, these systems are still largely in the research or early prototype stage, and widespread adoption in everyday healthcare or consumer use remains some years away.
Meanwhile, liquid skin protectants and barrier films have already seen meaningful growth in clinical settings, especially for managing chronic wounds and preventing skin damage.
Infinergy: A Mature Material Finding New Uses
BASF’s Infinergy—an expanded thermoplastic polyurethane (E-TPU)—was already well established several years ago, notably in athletic footwear. Its ability to compress and rebound efficiently has made it a benchmark material for energy return and cushioning.
Today, its applications have broadened into areas such as sports surfaces, playground flooring, and industrial cushioning systems. There have also been trials in agricultural environments, where softer flooring may improve animal comfort.
While the material itself has not fundamentally changed, its continued adoption across industries highlights how incremental innovation and application development can be just as impactful as entirely new inventions.
Carbon Nanotubes: Advancing, but Selectively Adopted
Carbon nanotubes have long been known for their exceptional optical, electrical, and mechanical properties. Developments in ultra-black coatings—where nanotube arrays absorb more than 99.99% of incident light—have demonstrated striking visual effects and potential applications in optical systems, such as reducing stray light in sensitive instruments.
At the same time, research into using carbon nanotubes in energy storage continues. They can improve conductivity and structural stability in battery electrodes, but high costs and manufacturing challenges currently limit their widespread commercial use compared to traditional materials.
In structural applications, related carbon-based materials—especially carbon fiber composites—have already achieved large-scale adoption, particularly in aerospace and high-performance engineering.
The Bottom Line
Looking back at those earlier industry documents, it’s striking how accurately they identified key directions for innovation. Concepts like smart textiles, biomimetic coatings, skin-compatible materials, and advanced composites remain highly relevant today.
What has changed is the pace and pathway of development. Some ideas have transitioned into real products, while others remain in research or early-stage commercialization. The gap between laboratory breakthroughs and scalable, cost-effective solutions is still a defining factor.
The field of technical textiles continues to evolve steadily. Rather than sudden breakthroughs across all fronts, progress is happening through a combination of material science advances, engineering refinement, and practical deployment. It will be interesting to revisit these topics again in a few years and see which of today’s emerging technologies have truly crossed into widespread use.