化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (10) : 104-109. DOI: 10.19817/j.cnki.issn1006-3536.2025.10.033

新材料与新技术

MTMS基柔性SiO₂气凝胶热声性能调控研究

作者信息 +

Study on the modulation of thermal and acoustic properties of MTMS-based flexible SiO₂ aerogels

Li Xiangwen, Li Kunfeng, Zhang Zhen, Fei Zhifang, Chen Guobing, Yang Zichun

Author information +

文章历史 +

Received
2024-08-28
Issue Date	Revised Date
2025-10-13	2024-08-28

PDF

摘要

SiO₂气凝胶优异的隔热性能使其受到广泛关注,但其特异的声学性能尤其是隔声性能仍需进一步发掘。以甲基三甲氧基硅烷(MTMS)为硅源,去离子水为溶剂,冰醋酸和氨水为酸碱催化剂,十六烷基三甲基溴化铵(CTAB)为表面活性剂,通过溶胶-凝胶和CO₂超临界干燥工艺制备出柔性SiO₂气凝胶。分析了SiO₂的微观形貌、导热系数、力学性能以及隔声量。结果表明:所制备的样品(25mm厚)隔声量可达28.99dB。CTAB可在不改变样品密度的条件下通过调节样品孔径同时提高其隔热、力学以及隔声性能。而MTMS用量可以同时改变SiO₂气凝胶的孔结构以及密度,对材料隔声性能影响较大。

Abstract

SiO₂ aerogels exhibit excellent thermal insulation properties and have attracted much attention.However,their unique acoustic properties,especially sound insulation performance,still require to be further explored.In this study,methyltrimethoxysilane (MTMS) was used as the silicon source,deionized water as the reaction solvent,acetic acid and ammonia water as acid-base catalysts,and cetyltrimethylammonium bromide (CTAB) as the surfactant to prepare flexible SiO₂ aerogels through the sol-gel method.The micro-morphology,thermal conductivity,mechanical properties,and sound insulation of the SiO₂ aerogels were analyzed.The results showed that the sound insulation of the prepared samples (25mm thick) could reach 28.99dB.CTAB could adjust the pore structure without changing the sample density,thereby enhancing thermal insulation,mechanical,and sound insulation properties simultaneously.Furthermore,the amount of MTMS could change the pore structure and density of the SiO₂ aerogels,significantly affecting the material's sound insulation performance.

关键词

柔性SiO₂气凝胶 / 甲基三甲氧基硅烷 / 表面活性剂 / 隔声量

Key words

flexible SiO₂ aerogels / methyltrimethoxysilane / surfactant / sound Insulation value

引用本文

引用格式 ▾

MTMS基柔性SiO₂气凝胶热声性能调控研究[J]. 化工新型材料, 2025, 53(10): 104-109 DOI:10.19817/j.cnki.issn1006-3536.2025.10.033

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] 李肖华,杨自春,李昆锋,等.聚酰亚胺纤维增强低密度柔性甲基三乙氧基硅烷基SiO₂气凝胶的制备及表征[J].科学技术与工程,2020,20(2):550-555.
[2] 李肖华,杨自春,李昆锋,等.以MTES为硅源制备透明可压缩的甲基倍半硅氧烷气凝胶及其表征[J].化工进展,2020,39(3):1115-1121.
[3] Pan Y,He S,Gong L,et al.Low thermal-conductivity and high thermal stable silica aerogel based on MTMS/Water-glass co-precursor prepared by freeze drying[J].Materials & Design,2017,113:246-253.
[4] Cheng X,Li C,Shi X,et al.Rapid synthesis of ambient pressure dried monolithic silica aerogels using water as the only solvent[J].Materials Letters,2017,204:157-160.
[5] Budtova T,Lokki T,Malakooti S,et al.Acoustic properties of aerogels:current status and prospects[J].Advanced Engineering Materials,2023,25(6):2201137.
[6] Mazrouei-Sebdani Z,Begum H,Schoenwald S,et al.A review on silica aerogel-based materials for acoustic applications[J].Journal of Non-Crystalline Solids,2021,562:120770.
[7] Chandradass J,Kang S,Bae D.Synthesis of silica aerogel blanket by ambient drying method using water glass based precursor and glass wool modified by alumina sol[J].Journal of Non-Crystalline Solids,2008,354(34):4115-4119.
[8] Paul J,Ahankari S S.Nanocellulose-based aerogels for water purification:a review[J].Carbohydrate Polymers,2023,309:120677.
[9] Shao H,Zhao S,Fei Z,et al.Unidirectional infiltrated PI/SiO₂ composite aerogels with a confined reinforcing strategy for integrated thermal and acoustic insulation[J].Composites Part B:Engineering,2023,266:111002.
[10] 缪旭弘,郭凤水,贾地.国外潜艇吸隔声材料研究现状及关键技术分析[J].西安:船舶水下噪声学术讨论会,2007.
[11] 高峰.欧洲国家海军潜艇减振降噪技术发展展望[J].舰船科学技术,2015,37(10):160-164.
[12] 熊英蕾.噪声新规在平台供应船中的应用[J].船舶工程,2018,40(S1):93-97.
[13] Palacio O,Malfait W J,Michel S,et al.Vibration and structure-borne sound isolation properties of silica aerogels[J].Construction and Building Materials,2023,399:132568.
[14] Moretti E,Merli F,Cuce E,et al.Thermal and acoustic properties of aerogels:preliminary investigation of the influence of granule size[J].Energy Procedia,2017,111:472-480.
[15] Buratti C,Merli F,Moretti E.Aerogel-based materials for building applications:influence of granule size on thermal and acoustic performance[J].Energy and Buildings,2017,152:472-482.
[16] Forest L,Gibiat V,Hooley A.Impedance matching and acoustic absorption in granular layers of silica aerogels[J].Journal of Non-Crystalline Solids,2001,285(1-3):230-235.
[17] Kueh A B H,Razali A W,Lee Y Y,et al.Acoustical and mechanical characteristics of mortars with pineapple leaf fiber and silica aerogel infills-measurement and modeling[J].Materials Today Communications,2023,35:105540.
[18] Jiang X,Zhang J,You F,et al.Chitosan/clay aerogel:microstructural evolution,flame resistance and sound absorption[J].Applied Clay Science,2022,228:106624.
[19] Wang G,Ma B,Yuan W,et al.Acoustic and mechanical characterization of a novel polypropylene fibers based composite aerogel[J].Materials Letters,2023,334:133696.
[20] Merli F,Anderson A M,Carroll M K,et al.Acoustic measurements on monolithic aerogel samples and application of the selected solutions to standard window systems[J].Applied Acoustics,2018,142:123-131.
[21] Abazari M S,Entezari M H.Enhance the loss of sound transmission of glass using a thin polyester/silica aerogel composite as a new sound insulation[J].Journal of Building Engineering,2024,90:109437.
[22] Dourbash A,Buratti C,Belloni E,et al.Preparation and characterization of polyurethane/silica aerogel nanocomposite materials[J].Journal of Applied Polymer Science,2017,134(8),DOI:10.1002/app.44521.
[23] Wu C,Li K,Zhao S,et al.Hierarchically porous and highly transparent polymethylsilsesquioxane aerogels with an ultrahigh specific surface area using an organic alkali as a catalyst,surfactant,and template[J].Microporous and Mesoporous Materials,2022,343:112197.
[24] Ding J,Zhong K,Liu S,et al.Flexible and super hydrophobic polymethylsilsesquioxane based silica aerogel for organic solvent adsorption via ambient pressure drying technique[J].Powder Technology,2020,373:716-726.
[25] 李杰,胡祖明,于俊荣,等.聚对苯二甲酰对苯二胺气凝胶纤维的制备与性能[J].材料导报,2024,38(2):22080102-22080106.

基金资助

国家自然科学基金(52402370)

AI Summary AI Mindmap