Sound Absorption Properties of Polyurethane/Nano-Silica Nanocomposite Foams

被引：113

作者：

Lee, Joonmo ^{[1
,2
]}

Kim, Gue-Hyun ^{[3
]}

Ha, Chang-Sik ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

[2] SKC, Chem Technol Dev Team, Ulsan 680130, South Korea

[3] Dongseo Univ, Div Energy Bio Engn, Pusan 617716, South Korea

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 123卷 / 04期

关键词：

polyurethane; nano-silica; nanocomposite; sound absorption; polyol; COMPOSITES; NANOPARTICLES; PERFORMANCE; IMPROVEMENT; MORPHOLOGY; RUBBER; AGENTS; INDEX;

D O I：

10.1002/app.34755

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study, polyurethane (PU)/nano-silica nancomposite foams were prepared. The effects of isocyanate index, cell size, density, and molecular weight of polyols on the sound absorption ratio of PU/nano-silica foams were investigated. With increasing nano-silica content, the sound absorption ratio of PU/nano-silica foams increases over the entire frequency range investigated in this study. Decrease of isocyanate index, cell size, and increase of density leads to the increase of sound absorption ratio of PU/nano-silica foams. PU/nano-silica foams have a broad T(g) centered around room temperature by decreasing molecular weight of polyol resulting in good sound absorbing ability. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 2384-2390, 2012

引用

页码：2384 / 2390

页数：7

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