Sound absorption behavior of multiporous hollow polymer micro-spheres

被引：37

作者：

Hong, Zhou ^{[1
]}

Bo, Li ^{[1
]}

Huang Guangsu ^{[1
]}

机构：

[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engineer, Chengdu 610065, Peoples R China

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 29-30期

基金：

中国国家自然科学基金;

关键词：

polymers; micro-spheres; porosity; microstructure; acoustic absorption;

D O I：

10.1016/j.matlet.2006.03.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multiporous polymer micro-spheres with interconnected cavities have been prepared by a simple modified emulsion polymerization of acrylate monomers and polymerizable emulsifier. The morphology of micro-spheres was characterized, by a scanning electron micrographs (SEM) and the sound absorption behavior of the micro-spheres materials was tested in an impedance tube. It is shown that the porous structures and low density allow the micro-spheres to embrace more diversified modes to attenuate sound wave energy. Besides the sound energy being dissipated at the interface of the air and the solid structures of micro-spheres, high absorption coefficient are given rise to by the vibration of the micro-spheres at the resonant frequencies. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3451 / 3456

页数：6

共 12 条

[1] [Anonymous], SOUND ABSORPTION MAT
[2] Hbelt J., 2004, P ICA2004 18 INT C A
[3] Poly(methyl methacrylate) hollow particles by water-in-oil-in-water emulsion polymerization
Kim, JW
Joe, YG
Suh, KD
[J]. COLLOID AND POLYMER SCIENCE, 1999, 277 (2-3) : 252 - 256
[4] Krishan K.Ahuja, United States Patent, Patent No. [5777947, 5,777,947]
[5] Hollow latex particles: synthesis and applications
McDonald, CJ
Devon, MJ
[J]. ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2002, 99 (03) : 181 - 213
[6] Production of submicron sized multihollow polymer particles having high transition temperatures by the stepwise alkali/acid method
Okubo, M
Ito, A
Hashiba, A
[J]. COLLOID AND POLYMER SCIENCE, 1996, 274 (05) : 428 - 432
[7] SOUND-ABSORPTION MEASUREMENTS FOR EVALUATING DYNAMIC PHYSICAL-PROPERTIES OF A POWDER BED
OKUDAIRA, Y
KURIHARA, Y
ANDO, H
SATOH, M
MIYANAMI, K
[J]. POWDER TECHNOLOGY, 1993, 77 (01) : 39 - 48
[8] Omi S, 2000, MACROMOL SYMP, V151, P319, DOI 10.1002/1521-3900(200002)151:1<319::AID-MASY319>3.0.CO
[9] 2-X
[10] COMPARISON OF 3 METHODS FOR MEASURING ACOUSTIC PROPERTIES OF BULK MATERIALS
SMITH, CD
PARROTT, TL
[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1983, 74 (05) : 1577 - 1582

← 1 2 →