Preparation of a new foam/film structure poly (ethylene-co-octene) foam materials and its sound absorption properties

Zhao, Tianbao; Yang, Mingtao; Wu, Hong; Guo, Shaoyun; Sun, Xiaoyang; Liang, Wenbin

doi:10.1016/j.matlet.2014.10.061

Cited by 39 publications

(28 citation statements)

References 19 publications

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“…Similarly, the acoustic properties of bio-luffa-fibre were measured by Koruk and Genc [6]. Besides natural fibre materials, the acoustic sound absorption coefficient of open-cell polyolefin-based, poly (ethylene-co-octene) foam, and poroelastic porous foams were also examined [7][8][9][10]. Arenas et al [11] designed an acoustic absorbing material for highway noise barriers using co-combustion bottom ash.…”

Section: Introductionmentioning

confidence: 99%

“…However, so far, the sound absorption of porous polycarbonate material (PPM) produced by additive manufacturing has not been well presented in the literature [4][5][6][7][8][9][10][11][12][13][14][15][16]. This paper investigates the acoustic properties of 3D printed (3DP) PPM and the feasibility of the fabrication of the porous sound absorbing material by additive manufacturing.…”

Section: Introductionmentioning

confidence: 99%

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Acoustic properties of a porous polycarbonate material produced by additive manufacturing

2016

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a b s t r a c tThis paper aims to investigate the acoustic properties of porous polycarbonate material (PPM) fabricated by additive manufacturing, and the feasibility to tailor artificial porous sound absorbing material is studied. Four PPM samples with different perforation angles were printed by using a 3D printer. Polycarbonate material was used, and the samples were printed with 25.4 micrometre layer resolution. Their sound absorption coefficient was experimentally measured using the two-microphone impedance tube method. It was found that with increased the perforation angle and constant porosity, the sound absorption was decreased. The results indicated that by adjusting the perforation angle and the airgap behind the sample, significant sound absorption can be achieved in the low frequencies where conventional porous materials may not be that effective. The results obtained in this paper provide a new approach for the fabrication of new porous sound absorbing materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acoustic properties of a porous polycarbonate material produced by additive manufacturing

2016

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“…With an increase in the alternating unit number, the material shows the sound absorption effect in a wider bandwidth of frequency. The alternating multilayered structure provides more interfaces when increasing of the alternating unit number, so more reflection and friction loss happened on these interfaces [ 14 ]. Moreover, the airflow resistivity of the composites would improve when increasing the alternating unit number, and the propagation path of the sound wave would also become longer.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the structural design of materials is another strategy to increase the sound absorption property. Many structures were investigated such as periodic [ 9 , 10 ], helical [ 11 ], porous [ 12 , 13 ], multilayered [ 14 ], and so on. Phonon crystal, a kind of material with a periodic structure, is deemed an ideal material to shield noise.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Sound Absorption Properties of a Barium Titanate/Nitrile Butadiene Rubber–Polyurethane Foam Composite with Multilayered Structure

et al. 2018

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Barium titanate/nitrile butadiene rubber (BT/NBR) and polyurethane (PU) foam were combined to prepare a sound-absorbing material with an alternating multilayered structure. The effects of the cell size of PU foam and the alternating unit number on the sound absorption property of the material were investigated. The results show that the sound absorption efficiency at a low frequency increased when decreasing the cell size of PU foam layer. With the increasing of the alternating unit number, the material shows the sound absorption effect in a wider bandwidth of frequency. The BT/NBR-PU foam composites with alternating multilayered structure have an excellent sound absorption property at low frequency due to the organic combination of airflow resistivity, resonance absorption, and interface dissipation.

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“…is one of them. More and more attention has been focused on this structure, which can lead to the [18][19][20][21], pressure-induced flow (PIF) processing [22], uncontrolled casting of polymer/clay mixtures [23][24][25], ice-templating and sintering of ceramics [26,27], bidirectional freezing [28], etc. have been proposed to prepare materials with such multilayered structure.…”

Section: Introductionmentioning

confidence: 99%

The influence of blend composition and filler on the microstructure, crystallization, and mechanical behavior of polymer blends with multilayered structures

et al. 2018

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The preparation of multilayered structures has been thought as a complicated process until our recent study illustrating an effective method through high speed thin wall injection molding (HSTWIM) of polypropylene (PP) and polyethylene (PE) based blends. Current study investigates the effect of blends composition as well as the addition of carbon nanotubes (CNT) on the structure and properties of these blends. It is observed that a close ratio of high density polyethylene (HDPE) and impact copolymer polypropylene (ICP) triggers the formation of a multilayered structure. Meanwhile, PE is migrated into the rubber phase in ICP, leading to the distribution of some rubber phase on the interface between PP and PE, which is thought as beneficial for the interfacial interaction. Meanwhile, epitaxial growth of PE crystals on PP substrate is also observed. The presence of rubber phase on the interface, multilayered structure and epitaxial growth of PE crystals on PP are thought to be responsible for the observed mechanical enhancement in tensile strength as well as strain at break. Furthermore, the addition of CNTs leads to enhanced strength, reduced strain at break and anisotropic conductive network.

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Preparation of a new foam/film structure poly (ethylene-co-octene) foam materials and its sound absorption properties

Cited by 39 publications

References 19 publications

Acoustic properties of a porous polycarbonate material produced by additive manufacturing

Acoustic properties of a porous polycarbonate material produced by additive manufacturing

Preparation and Sound Absorption Properties of a Barium Titanate/Nitrile Butadiene Rubber–Polyurethane Foam Composite with Multilayered Structure

The influence of blend composition and filler on the microstructure, crystallization, and mechanical behavior of polymer blends with multilayered structures

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