Staying cool is a key aspect to ensuring a good night’s sleep. While we rest, our bodies release thermal energy that is absorbed by its surroundings which can help maintain a comfortable temperature. However, if we get too hot, this can have negative side-effects to sleep quality. When designing mattresses, bed coverings and blankets, the selected materials ability to transfer and exchange that thermal input is crucial to the product’s overall performance. A key attribute in developing such products is the material’s cool touch which is quantified as material’s thermal effusivity.
Thermal effusivity is an intrinsic material property which describes the ability of two materials in contact to exchange thermal energy. It is what many industries use to describe a materials warm/cool feel. Quantifying thermal effusivity of bedding materials is easily accomplished using C-Therm’s Modified Transient Plane Source (MTPS) with Guard-Ring™ technology. Not only is this the sole method that conforms to ASTM D7984 but being a single-sided measurement device, it easily allows for representative testing conditions under varying force loads, temperature, and humidity conditions.
Whether developing the next generation of mattress technology or simply looking to better quantify the performance of materials in general, this webinar will highlight the use of the MTPS for characterization of a range of common bedding materials. Data collected on samples such as foams, textiles and composite materials with varying additives and structures will be presented alongside work from academia and industry.
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