چاپ صفحه |  صفحه نخست سامانه |  نویسندگان |  اطلاعات تفضیلی |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| نویسنده ثبت کننده مقاله | غلامرضا مرادی |
| مرحله جاری مقاله | تایید نهایی |
| دانشکده/مرکز مربوطه | دانشکده بهداشت |
| کد مقاله | 82562 |
| عنوان فارسی مقاله | طراحی و ساخت فوم کامپوزیت پلی یورتان تقویت شده با الیاف پشم سنگ |
| عنوان لاتین مقاله | design and fabrication of polyurethane composite foams reinforcement with rock wool fiber; effect of the non-acoustical parameters on sound absorption coefficient |
| نوع ارائه | سخنرانی |
| عنوان کنگره / همایش | هفتمین کنفرانس بین المللی بهداشت،درمان و ارتقای سلامت |
| نوع کنگره / همایش | بین المللی |
| کشور محل برگزاری کنگره/ همایش | Georgia |
| شهر محل برگزاری کنگره/ همایش | georgia |
| سال انتشار/ ارائه شمسی | 1400 |
| سال انتشار/ارائه میلادی | 2021 |
| تاریخ شمسی شروع و خاتمه کنگره/همایش | 1400/07/30 الی 1400/08/14 |
| آدرس لینک مقاله/ همایش در شبکه اینترنت | https://www.en.symposia.ir/HWCONF07 |
| آدرس علمی (Affiliation) نویسنده متقاضی | Department of Occupational Health Engineering, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran |
| نویسنده | نفر چندم مقاله |
|---|---|
| غلامرضا مرادی | چهارم |
| بهزاد محمدی | اول |
| عبدالرسول صفائیان | دوم |
| پیمانه حبیبی | سوم |
| عنوان | متن |
|---|---|
| خلاصه مقاله | Abstract: The present study aimed to focus on improving acoustic and mechanical characteristics by embedding the polyurethane foam (PUF) with the rock wool fibers (RWF) of diverse values (0-3wt%) that were synthesized using the polymerization process. In addition, the association between non-acoustical parameters and sound absorption characteristics of the porous polyurethane foams was investigated. Moreover, indicators of effective non-acoustic parameters, including air-flow resistance (AFR), porosity, volumetric density, and microstructure, were determined. The results showed sound absorption properties were highly enhanced when polyurethane composite foam (PUF/RWF) (i.e. 1, 2, and 3wt%) were used, as compared to the pristine PUF. Furthermore, the sound absorption coefficient (SAC) of PUF composite was highly enhanced in the frequency range of 400 to 1600 Hz when the foam was combined with an RWF amount of 2wt%. Besides, the density and AFR increased with the addition of different contents of RWF. Open porosity composite foams strongly depended on AFR and volumetric density (i.e. a negative association with RWF content). The use of the excessive amount of the RWF (RWF > 2wt%) caused intramolecular agglomeration, which resulted in reduced sound absorption efficiency. Finally, multiple regression analysis was used to investigate the association between SAC and non-acoustic parameters, including AFR, porosity, volumetric density, and RWF amount, which revealed a well proportion between experimental data and statistical analysis. |
| کلمات کلیدی | sound absorption coefficient; rock wool fiber-based material; open-cell foam; polyurethane foam; non-acoustic parameters |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| HWCONF07_072 (1).pdf | 1402/06/28 | 880893 | دانلود |
| 3-3.jpg | 1402/06/28 | 190355 | دانلود |
