| Preparation and Performance of New Underwater Acoustic Rubber Material |
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| DOI： |
| Key Words: CR；BR；blend；acoustics；temperature sensibility |
| Author Name | Affiliation | | FAN Jin－liang | Hangzhou Applied Acoustics Research Institute | | ZHAO Xiu－ying | Beijing University of Chemical Technology | | XIE Han | Beijing University of Chemical Technology | | WANG Zhe | Beijing University of Chemical Technology | | HU Shi－kai | Beijing University of Chemical Technology |
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| Abstract: |
| The acoustic materials were prepared by using chloroprene rubber(CR) as the matrix， and the properties of butadiene rubbe (BR)/CR with different blend ratio were investigated.The results showed that，compared with CR A－90，CR322 showed no crystallinity and possessed steady storage modulus in the temperature range of 0～40 ℃，and thus was more suitable for the application.Compare to CR，the glass transition temperature of BR/CR blends decreased，their storage moduli were steady in the temperature range of 0～40 ℃，the cold resistance was better and the temperature sensitivity was low，while the physical properties dropped only slightly.The acoustic materials of CR and CR/BR blend showed excellent acoustic performance and water tightness. |
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