Facile synthesis of hydrophobic, thermally stable, and insulative organically modified silica aerogels using co-precursor method

Vinayak G. Parale, Kyu Yeon Lee, Hae Noo Ree Jung, Ha Yoon Nah, Haryeong Choi, Tae Hee Kim, Varsha D. Phadtare, Hyung-Ho Park

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Silica aerogels have low density and high specific surface area, but there are restrictions regarding their durability and commercialization owing to their fragile nature and the strong moisture absorbing behavior of the siloxane network. To overcome these restrictions, this study evaluated hybrid organically modified silica (ORMOSIL) aerogels by employing 3-(trimethoxysilylpropyl) methacrylate (TMSPM) in tetraethyl orthosilicate (TEOS) through a two-step sol-gel co-precursor method. The methacrylate organic groups were incorporated into the silica networks via reactions between the Si-OH moieties in silica aerogels, resulting in ORMOSIL aerogels. The properties of the ORMOSIL aerogels were strongly affected by the amount of TMSPM co-precursor. The highest concentration of TMSPM (30 wt%) resulted in ORMOSIL aerogels with improved characteristics when compared with the pristine TEOS-based silica aerogels, such as hardness (0.15 GPa), Young's modulus (1.26 GPa), low thermal conductivity (0.038 W/m K), high water contact angle (140°), and high thermal stability (350 °C).

Original languageEnglish
Pages (from-to)3966-3972
Number of pages7
JournalCeramics International
Volume44
Issue number4
DOIs
Publication statusPublished - 2018 Mar 1

Fingerprint

Aerogels
Silicon Dioxide
Silica
Methacrylates
Siloxanes
Specific surface area
Contact angle
Sol-gels
Thermal conductivity
Durability
Thermodynamic stability
Moisture
Elastic moduli
Hardness
Water

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Parale, Vinayak G. ; Lee, Kyu Yeon ; Jung, Hae Noo Ree ; Nah, Ha Yoon ; Choi, Haryeong ; Kim, Tae Hee ; Phadtare, Varsha D. ; Park, Hyung-Ho. / Facile synthesis of hydrophobic, thermally stable, and insulative organically modified silica aerogels using co-precursor method. In: Ceramics International. 2018 ; Vol. 44, No. 4. pp. 3966-3972.
@article{baa833d614954896b4c2b9444d1778a4,
title = "Facile synthesis of hydrophobic, thermally stable, and insulative organically modified silica aerogels using co-precursor method",
abstract = "Silica aerogels have low density and high specific surface area, but there are restrictions regarding their durability and commercialization owing to their fragile nature and the strong moisture absorbing behavior of the siloxane network. To overcome these restrictions, this study evaluated hybrid organically modified silica (ORMOSIL) aerogels by employing 3-(trimethoxysilylpropyl) methacrylate (TMSPM) in tetraethyl orthosilicate (TEOS) through a two-step sol-gel co-precursor method. The methacrylate organic groups were incorporated into the silica networks via reactions between the Si-OH moieties in silica aerogels, resulting in ORMOSIL aerogels. The properties of the ORMOSIL aerogels were strongly affected by the amount of TMSPM co-precursor. The highest concentration of TMSPM (30 wt{\%}) resulted in ORMOSIL aerogels with improved characteristics when compared with the pristine TEOS-based silica aerogels, such as hardness (0.15 GPa), Young's modulus (1.26 GPa), low thermal conductivity (0.038 W/m K), high water contact angle (140°), and high thermal stability (350 °C).",
author = "Parale, {Vinayak G.} and Lee, {Kyu Yeon} and Jung, {Hae Noo Ree} and Nah, {Ha Yoon} and Haryeong Choi and Kim, {Tae Hee} and Phadtare, {Varsha D.} and Hyung-Ho Park",
year = "2018",
month = "3",
day = "1",
doi = "10.1016/j.ceramint.2017.11.189",
language = "English",
volume = "44",
pages = "3966--3972",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "4",

}

Facile synthesis of hydrophobic, thermally stable, and insulative organically modified silica aerogels using co-precursor method. / Parale, Vinayak G.; Lee, Kyu Yeon; Jung, Hae Noo Ree; Nah, Ha Yoon; Choi, Haryeong; Kim, Tae Hee; Phadtare, Varsha D.; Park, Hyung-Ho.

In: Ceramics International, Vol. 44, No. 4, 01.03.2018, p. 3966-3972.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Facile synthesis of hydrophobic, thermally stable, and insulative organically modified silica aerogels using co-precursor method

AU - Parale, Vinayak G.

AU - Lee, Kyu Yeon

AU - Jung, Hae Noo Ree

AU - Nah, Ha Yoon

AU - Choi, Haryeong

AU - Kim, Tae Hee

AU - Phadtare, Varsha D.

AU - Park, Hyung-Ho

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Silica aerogels have low density and high specific surface area, but there are restrictions regarding their durability and commercialization owing to their fragile nature and the strong moisture absorbing behavior of the siloxane network. To overcome these restrictions, this study evaluated hybrid organically modified silica (ORMOSIL) aerogels by employing 3-(trimethoxysilylpropyl) methacrylate (TMSPM) in tetraethyl orthosilicate (TEOS) through a two-step sol-gel co-precursor method. The methacrylate organic groups were incorporated into the silica networks via reactions between the Si-OH moieties in silica aerogels, resulting in ORMOSIL aerogels. The properties of the ORMOSIL aerogels were strongly affected by the amount of TMSPM co-precursor. The highest concentration of TMSPM (30 wt%) resulted in ORMOSIL aerogels with improved characteristics when compared with the pristine TEOS-based silica aerogels, such as hardness (0.15 GPa), Young's modulus (1.26 GPa), low thermal conductivity (0.038 W/m K), high water contact angle (140°), and high thermal stability (350 °C).

AB - Silica aerogels have low density and high specific surface area, but there are restrictions regarding their durability and commercialization owing to their fragile nature and the strong moisture absorbing behavior of the siloxane network. To overcome these restrictions, this study evaluated hybrid organically modified silica (ORMOSIL) aerogels by employing 3-(trimethoxysilylpropyl) methacrylate (TMSPM) in tetraethyl orthosilicate (TEOS) through a two-step sol-gel co-precursor method. The methacrylate organic groups were incorporated into the silica networks via reactions between the Si-OH moieties in silica aerogels, resulting in ORMOSIL aerogels. The properties of the ORMOSIL aerogels were strongly affected by the amount of TMSPM co-precursor. The highest concentration of TMSPM (30 wt%) resulted in ORMOSIL aerogels with improved characteristics when compared with the pristine TEOS-based silica aerogels, such as hardness (0.15 GPa), Young's modulus (1.26 GPa), low thermal conductivity (0.038 W/m K), high water contact angle (140°), and high thermal stability (350 °C).

UR - http://www.scopus.com/inward/record.url?scp=85035798412&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035798412&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2017.11.189

DO - 10.1016/j.ceramint.2017.11.189

M3 - Article

AN - SCOPUS:85035798412

VL - 44

SP - 3966

EP - 3972

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 4

ER -