Thermal Conductivities of Fiber-Based Products

Polymer and glass fibers are thermal insulators. They often are assembled to form products, such as bats in sleeping comforters, winter coats, and building insulation, for thermal protection. The thermal conductivity of these fiber assemblies can be estimated by  

Fibers also can be used in composites to adjust their thermal properties. Similar to fiber-based thermal protection products, the thermal conductivity of fi- 

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