Research Keyword: sound absorption

A Critical Review on Hygrothermal and Sound Absorption Behavior of Natural-Fiber-Reinforced Polymer Composites

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This review examines how natural fibers combined with plastics create materials that insulate buildings thermally and acoustically while being environmentally friendly. The study shows that treating natural fibers with chemicals reduces their water absorption, which makes these composites more durable. These materials perform as well as or better than traditional synthetic insulators while having a much lower environmental impact and carbon footprint.

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Properties of Sound Absorption Composite Materials Developed Using Flax Fiber, Sphagnum Moss, Vermiculite, and Sapropel

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Researchers created new environmentally friendly sound-absorbing panels using lake sediment (sapropel) as a binder mixed with natural fibers and minerals. These composite materials work well for reducing noise in buildings and have a decorative natural appearance. However, because they contain organic materials, they are susceptible to mold growth and need antimicrobial protection, with materials containing vermiculite performing better than those with moss.

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