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[1] zhang, y., liu, h., & wang, x. (2021). sound absorption properties of polyurethane foams modified with flame retardants. journal of applied polymer science, 138(15), 50123¨C50132.
[2] kim, j., park, s., & lee, k. (2020). development of sound insulation materials using bio-based polyols for automotive applications. polymer engineering & science, 60(4), 887¨C895.
[3] chen, l., zhao, m., & sun, q. (2022). fire-retardant and acoustic performance of polyether polyol composites in building materials. construction and building materials, 335, 127498.
[4] iso 3582:2003 ¨C acoustics ¡ª test method for measuring the sound absorption coefficient of road surfaces.
[5] astm e84 ¨C standard test method for surface burning characteristics of building materials.
[6] grand view research. (2023). polyurethane sound insulation market size report. retrieved from https://www.grandviewresearch.com
[7] ÖйúËÜÁϼӹ¤¹¤ÒµÐ»á. (2022). ¡¶Öйú¾Û°±õ¥ÐÐÒµ·¢Õ¹±¨¸æ¡·. ±±¾©£ºÖйúʯ»¯³ö°æÉç.
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