This research paper reports a study on thermal and sound insulation samples developed from garment waste recycled cotton/polyester fiber (recycled cotton/PET) for construction industry applications. In this research work, the piece of clothing waste recycled cotton and polyester fiber is a potential source of raw material for thermal and sound insulation applications, but its quantities are limited. To overcome the above problems, apparel waste recycled cotton fiber was mixed with recycled/PET fiber in 50/50 proportions in the form of two-layer nonwoven mats with chemical bonding methods. The samples such as cotton (color and white), polyester (color and white), and cotton–polyester blend (color and white) were prepared. All the samples were tested for thermal insulation, acoustic, moisture absorption, and fiber properties as per the ASTM Standard. Also, the behavior of the six recycled cotton/polyester nonwoven samples under high humidity conditions was evaluated. The sound absorption coefficients were measured according to ASTM E 1050 by an impedance tube method; the acoustics absorption coefficients over six frequencies of 125, 250, 500, 1000, 2000, and 4000?Hz were calculated. The result revealed that recycled/PET/cotton garment waste nonwoven mats were absorbing the sound resistance of more than 70% and the recycled nonwoven mats provided the best insulation, acoustic, moisture absorption, and fiber properties. The recycled pieces of clothing waste cotton/polyester nonwoven mats have adequate moisture resistance at high humidity conditions without affecting the insulation and acoustic properties.
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机译：本研究论文报告了从服装废物再生棉/聚酯纤维（再生棉/宠物）开发的热和隔音样品进行建筑业应用的研究。在这项研究工作中，衣物废物再循环棉和聚酯纤维是热和隔音应用的潜在原料来源，但其数量有限。为了克服上述问题，服装废物再循环棉纤维与循环/ PET纤维的50/50以双层非织造垫的形式与化学键合方法混合。制备棉（颜色和白色），聚酯（颜色和白色）和棉 - 聚酯共混物（颜色和白色）等样品。根据ASTM标准测试所有样品的保温，声学，吸湿和纤维性能。而且，评价了六种再循环棉/聚酯非织造样品的行为在高湿度条件下进行了评价。通过阻抗管方法根据ASTM E 1050测量声吸收系数;计算出超过六个频率125,250,500,1000,2000和4000·Hz的声学吸收系数。结果表明，再生/宠物/棉服装废物无纺布垫吸收超过70％的声阻，再生的非织造垫提供最佳的绝缘，声学，吸湿和纤维性能。 Recycled的衣物废棉/聚酯无纺布垫在高湿度条件下具有足够的耐湿性，而不会影响绝缘性和声学性质。
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