Enhancing Acoustic Insulation in Modern Buildings Using Textile Composites Reinforced with Nano Particles
Keywords:
textile composite materials, technical textiles/fibers, nano techniques, acoustic insulation, acoustic absorption, sound propagation, sound pressure level.Abstract
The issue of noise has had an important impact on the environmental level in recent times, as the development of insulation and acoustic absorption
technologies for modern buildings at work and at home has occupied an advanced seat among the interests of industrialized and Western countries, so the search for a new horizon for sound insulation mechanisms has begun to become in the circle of nanotechnology and science with what is called smart insulation for modern buildings.
In this scientific research, we will shed light on the concepts of sound and noise, the spread of sounds, and sound insulation in buildings and facilities. We will also study the role that textile and composite materials play in isolating sound noise by absorbing, reflecting, or dispersing the sound wave within the structure of the insulating material. We will also examine theoretically and experimentally the possibility Improving the performance of composite textile materials for sound insulation by adding materials and granules of nanostructures and dimensions to the matrix of the textile material and its composite, using the cheapest types of materials and the most widely circulated in the industrial and local market, and the objective application is in the service of developing sound insulation for modern buildings.
In this research, six samples of composite textile materials reinforced with nanoparticles and closed-cell rigid polyurethane foam were prepared, then the materials were protected with a layer of epoxy used in coatings. E-glass and Basalt chopped strands and fibers with high percentages of silicon oxide (SiO2), three-dimensional and two-dimensional fabrics were used, and from the reference studies, the percentage (7% by weight) was adopted for the amount of nano-grained and porous structure of silica, as a sufficient, functionally and economically effective percentage to raise the sound absorption rate up to (99%), as well. Thickness plays a major role in sound insulation, in compliance with the requirements of the Guide of Acoustic and Thermal insulation Products in Building.
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