Reinforced sound insulation properties of styrene-acrylonitrile copolymer composites via using organo-montmorillonite loaded polymethylmethacrylate microspheres

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2025-02-08 DOI:10.1016/j.polymer.2025.128140

Zhengxue Shi , Jingjie Hu , Mengqi Zhang, Feng You, Xueliang Jiang, Huaming Zheng, Chu Yao, Pei Zhao

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引用次数: 0

Abstract

Sound insulation material has been broadly used in transportation or construction industries to control noise. Polymer composites have been used in acoustic areas due to their low density and feasible processing capability. In this work, organo-montmorillonite (OMMT) lamellae were adsorbed onto polymethyl methacrylate (PMMA) microspheres via soap-free emulsion polymerization to obtain PMMA@OMMT composite microspheres on reinforcing the sound-insulating effect of styrene-acrylonitrile copolymer (SAN). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the successful loading of OMMT on PMMA microspheres. The sound insulation properties of SAN by incorporating PMMA@OMMT were conducted using a four-microphone impedance tube. The results revealed that PMMA@OMMT composite microspheres were more efficient in enhancing the sound insulation properties of SAN than that using simple blending commercial pelletized PMMA with OMMT or PMMA microspheres with MMT. The average sound transmission loss (STL) of SAN/PMMA@OMMT (5 wt%) composites could reach 38.97 dB, which exceeded previous reports by taking into consideration the thin thickness and few filler loadings. The sound reinforcing mechanism for PMMA@OMMT on SAN was analyzed using dynamic mechanical analysis. This work will broaden the application of OMMT in sound insulation and provide a novel solution for designing lightweight sound-insulation materials.

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.