Innovative Phase Change Materials and Insulation

February 4, 2022

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4 min read

Have you ever wondered why ice keeps your drinks cold? The answer lies in the fascinating process of phase change, where ice melts and absorbs heat from its surroundings without a rise in temperature. This unique property of phase change materials plays a crucial role in creating innovative insulation products that can revolutionize energy efficiency in buildings.

Introduction

Phase change materials, or PCMs, are substances that undergo a change of state from solid to liquid and vice versa as they absorb or release thermal energy. These materials have been harnessed to create advanced insulation products that can minimize heating and cooling loads, making them ideal for sustainable construction.

A local company called QE Platinum has introduced a remarkable phase change insulation product, featuring panels measuring 4′ x 1.5′ x 3/8″. Weighing less than 1 lb per square foot, these panels consist of squishy PCM cells enclosed in conductive materials like thick aluminum foil.

Three main types of phase change materials:

Organic materials like paraffin wax or non-paraffin like fatty acids, esters, alcohols and glycols.
Inorganic materials like salt hydrates and metal alloys.
Eutectics which are a combination of organic and inorganic materials

QE Platinum’s phase change insulation is made of organic and biodegradable soybean oil. It takes three stages to harness its thermal capabilities effectively:

Absorb: As the morning sun rises, the semi-solid PCM absorbs thermal energy and begins to melt.
Store: Throughout the day, the PCM continues to melt, absorbing and storing over 100 BTU per square foot.
Release: At night, the PCM returns to its solid state, preparing for a new day of thermal energy absorption.

In a compelling timelapse experiment, the phase change insulation outperformed traditional foam insulation when subjected to heating from an incandescent light bulb. The phase change material significantly slowed down indoor heat gain in summer and heat loss in winter, leading to a more stable and comfortable indoor environment. This reduction in temperature fluctuations can also result in lower energy consumption and a shift in peak energy usage to more cost-effective periods.

Advantages of Phase Change Insulation

With excellent fire resistance and a Class A Fire safety rating, this product is both safe and durable. It is also water-resistant and self-healing, mitigating potential damages caused by punctures. Remarkably, the product is estimated to degrade less than 2% over 100 years, and it comes with a 30-year warranty, guaranteeing 20% energy savings for selected homes or buildings.

Moreover, phase change insulation is eco-friendly, with recyclable outer layers and non-toxic inner components. It does not release any VOCs or odors, making it safe for both the environment and human health.

The installation process is hassle-free, with pliable and lightweight panels that can be easily laid on top of existing insulation in attics or on suspended ceiling tiles in commercial settings. Compared to traditional insulation, phase change insulation requires no preparation, maintenance, or special equipment, making it ideal for various applications, including restaurants and offices.

Disadvantages of Phase Change Insulation

However, like any innovative product, there are some considerations. Phase change insulation should complement traditional insulation rather than replace it, making it a supplementary investment. Additionally, the cost of $3.50 per square foot may be higher, but as production scales up, the price is expected to decrease.

Furthermore, phase change materials work best in temperate climates with significant variations between daytime and overnight temperatures. Coastal tropical regions, where temperature fluctuations are minimal, may not fully utilize the potential of these materials.

Conclusion

In conclusion, the science behind phase change materials has unlocked exciting possibilities for energy-efficient buildings and insulation solutions. By embracing innovative products like QE Platinum’s phase change insulation, we can take significant steps towards reducing carbon emissions, conserving water resources, and achieving a more sustainable future for our planet. When combined with other energy-saving measures, phase change insulation can pave the way for greener and more comfortable living spaces.”