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Preparation of Polystyrene/SiO 2 Composite Aerogel Microspheres.

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Title: Preparation of Polystyrene/SiO 2 Composite Aerogel Microspheres.
Authors: Qian, Zenghui1 (AUTHOR), Yu, Yangyang1 (AUTHOR), Chen, Wenjing1 (AUTHOR), Jiang, Guodong1 (AUTHOR) gdjiang@njtech.edu.cn, Shen, Yucai1 (AUTHOR), Mao, Zepeng1 (AUTHOR)
Source: Materials (1996-1944). Mar2026, Vol. 19 Issue 5, p1036. 13p.
Subjects: Polystyrene, Aerogels, Surface preparation, Hydrophobic interactions, Polymerization, Heat treatment
Abstract: Highlights: What are the main findings? Surface functionalization-coordinated enhancement via W/O emulsion & in situ copolym. The innovative application of a HMDS/KH570 binary hydrophobic modifier system. Developed Sty-DVB copolymerization for nanoscale reinforcement layer on aerogel microspheres. What are the implications of the main findings? The study provides an efficient strategy for hydrophobic and structural enhancement of SiO2 aerogel. The application of dual hydrophobic modifiers demonstrates potential for tuning surface wettability. Nanoscale reinforcement layer enhances aerogel stability, expanding applications. Silica aerogel microspheres demonstrate tremendous potential as fillers for diverse materials across various fields. Enhancing the strength of silica aerogel microspheres is therefore crucial for their practical applications. This study aims to develop novel hydrophobic polymer-reinforced silica aerogel microspheres using water glass as the precursor, hexamethyldisilazane (HMDS) as the modifier, and styrene as the crosslinking agent, with further strength enhancement achieved through short-term thermal post-treatment. The effects of varying polystyrene coating levels, crosslinker dosage, and short-term heat treatment on the structure and properties of silica aerogel were investigated. The optimized silica aerogel microspheres (Sample A-6) exhibited a specific surface area of 604.8 m2/g and a thermal conductivity of 0.030 W·m−1·K−1 and demonstrated excellent hydrophobicity and mechanical stability. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 192640308
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Preparation of Polystyrene/SiO 2 Composite Aerogel Microspheres.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Qian%2C+Zenghui%22">Qian, Zenghui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Yangyang%22">Yu, Yangyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Wenjing%22">Chen, Wenjing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Guodong%22">Jiang, Guodong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> gdjiang@njtech.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Shen%2C+Yucai%22">Shen, Yucai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mao%2C+Zepeng%22">Mao, Zepeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Mar2026, Vol. 19 Issue 5, p1036. 13p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Polystyrene%22">Polystyrene</searchLink><br /><searchLink fieldCode="DE" term="%22Aerogels%22">Aerogels</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+preparation%22">Surface preparation</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+interactions%22">Hydrophobic interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Highlights: What are the main findings? Surface functionalization-coordinated enhancement via W/O emulsion & in situ copolym. The innovative application of a HMDS/KH570 binary hydrophobic modifier system. Developed Sty-DVB copolymerization for nanoscale reinforcement layer on aerogel microspheres. What are the implications of the main findings? The study provides an efficient strategy for hydrophobic and structural enhancement of SiO2 aerogel. The application of dual hydrophobic modifiers demonstrates potential for tuning surface wettability. Nanoscale reinforcement layer enhances aerogel stability, expanding applications. Silica aerogel microspheres demonstrate tremendous potential as fillers for diverse materials across various fields. Enhancing the strength of silica aerogel microspheres is therefore crucial for their practical applications. This study aims to develop novel hydrophobic polymer-reinforced silica aerogel microspheres using water glass as the precursor, hexamethyldisilazane (HMDS) as the modifier, and styrene as the crosslinking agent, with further strength enhancement achieved through short-term thermal post-treatment. The effects of varying polystyrene coating levels, crosslinker dosage, and short-term heat treatment on the structure and properties of silica aerogel were investigated. The optimized silica aerogel microspheres (Sample A-6) exhibited a specific surface area of 604.8 m2/g and a thermal conductivity of 0.030 W·m−1·K−1 and demonstrated excellent hydrophobicity and mechanical stability. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/ma19051036
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 13
        StartPage: 1036
    Subjects:
      – SubjectFull: Polystyrene
        Type: general
      – SubjectFull: Aerogels
        Type: general
      – SubjectFull: Surface preparation
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      – SubjectFull: Hydrophobic interactions
        Type: general
      – SubjectFull: Polymerization
        Type: general
      – SubjectFull: Heat treatment
        Type: general
    Titles:
      – TitleFull: Preparation of Polystyrene/SiO 2 Composite Aerogel Microspheres.
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            NameFull: Qian, Zenghui
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            NameFull: Yu, Yangyang
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            NameFull: Chen, Wenjing
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            NameFull: Jiang, Guodong
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            NameFull: Shen, Yucai
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            NameFull: Mao, Zepeng
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 19
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