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A Greener Charge: The Promise of Bio-based Cables in Electronics

Unraveling the sustainability revolution of the ubiquitous USB cable



The consumer electronics industry has grappled with the challenge of creating more sustainable essential components, such as cables. These cables are necessary for charging smartphones and transferring data. However, recent green innovations have focused on using plant-based materials instead of petroleum-based plastics in cables. Leading the way in this endeavor is Anker, a company with its own unique blend of eco-friendly materials.


The debate over the best materials for cables is not just about performance, but increasingly about environmental impact. PVC (Polyvinyl Chloride) and PLA (Polylactic Acid) stand on opposite sides of this discussion, representing the traditional and the innovative perspective, respectively.


PVC is one of the most commonly used plastics in the electronics industry, PVC has been the standard for cable insulation for decades. Its flexibility, durability, and low cost make it a tempting choice for manufacturers. However, the environmental toll of PVC is heavy. Derived from fossil fuels, its production is energy-intensive and results in notable greenhouse gas emissions. Beyond production, PVC can release toxic chemicals like dioxins when burned. Moreover, it's not biodegradable and can persist in the environment for centuries, contributing significantly to the global plastic waste crisis.


Enter PLA, a bio-based plastic derived primarily from fermented plant starch, often from corn. As a compostable and hence a biodegradable material, PLA represents a step towards a more sustainable electronics industry. Its production emits fewer greenhouse gases than PVC, and, being plant-based, it taps into a renewable resource. Most notably, under the right conditions, PLA can decompose in a matter of months to years, compared to the centuries it takes for PVC. This rapid breakdown reduces the long-term environmental impact significantly. However, challenges persist: PLA's initial versions were less durable than PVC, though advancements are bridging this gap.


The comparison between PVC and PLA is emblematic of a larger shift in the electronics industry: a move from reliance on traditional, environmentally-harmful materials to sustainable, eco-friendly alternatives. As the demand for greener products grows, the momentum toward materials like PLA is likely to accelerate. While PVC has its merits and has served the industry well, the future of cable materials seems to be leaning toward the sustainable promise of PLA.


The PVC Conundrum Every kilogram of PVC - the predominant insulation material in cables - produced, emits an alarming 2.1 kg of CO2. The environmental footprints of these cables raise eyebrows and concerns alike.


Bio-based Renaissance Poly Lactic Acid (PLA), derived mainly from corn starch, presents itself as a beacon of hope. Emitting fewer greenhouse gases than its PVC counterpart, its sustainable attributes are well-touted. A noteworthy venture in this direction is DSM's EcoPaXX (72% bio-based), a shining example of bio-based polyamide's potential.

But the real stir in the market comes from Anker, a global leader in mobile charging. The firm has introduced USB-C cables using 40% plant-derived materials like corn and sugarcane. Steven Yang, CEO of Anker Innovations, sees this not as the culmination but the beginning of their commitment to eco-innovation.

Such bio-based cables aren't merely eco-friendly showpieces. They withstand up to 20,000 bends, speaking volumes of their strength and durability.


Consumer Conscience There's also the undeniable consumer tilt toward green products. A Nielsen survey from 2018 highlighted that a staggering 81% of global consumers expect companies to champion environmental causes.


Leading by Example


Anker's new bio-based charging cables incorporate a proprietary mixture of plant-based materials, helping to reduce the use of petroleum-based plastic

While Anker's recent announcement is groundbreaking, other companies are not far behind. Apple, though its focus is on recycled materials, is chipping away at its carbon footprint, slowly but surely. Nexans, a prominent cable manufacturer, has embraced the green call with its Green R-Evolution, congruent with the EU's greenhouse gas mitigation goals.


Challenges Ahead The road to complete adoption of bio-based cables is not without obstacles. Questions about their longevity, their water resilience, the need for a supply chain shakeup, and the task of large-scale production persist. But with tech giants leading the way, these hurdles seem surmountable. Pulp based composites is a very interesting class of material that may open up new avenues to bio-based cables. The Durapulp from Södra Skogsägarna and bioplastics such as Ecovio and Ecoflex from BASF are two interesting alternatives.


Conclusion As the consumer electronics sector buzzes with innovations, the sustainability of foundational components like cables cannot be overlooked. Anker's foray into bio-based cables and sustainable packaging is a clarion call for others to follow. A fusion of technological prowess and environmental consciousness might well be the game-changer the industry needs.


Further Reading:

Let this be a guidepost as we navigate the future—one where innovation and sustainability are inseparably intertwined, driving us towards a brighter, greener tomorrow.


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