Facile synthesis of sponge reinforced monolithic silica aerogels with improved mechanical property and excellent absorptivity

被引：10

作者：

He, Song ^{[1
]}

Cheng, Xudong ^{[1
]}

Li, Zhi ^{[1
]}

Shi, Xiaojing ^{[1
]}

Li, Kaiyuan ^{[1
]}

Zhang, Heping ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230027, Anhui, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 154卷

关键词：

Polyurethane sponge; Sol-gel preparation; Porous materials; Mechanical property; Absorptivity;

D O I：

10.1016/j.matlet.2015.02.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silica aerogels (SA) with low density were reinforced with monolithic polyurethane sponge (PUS) using the sol-gel method at ambient pressure. The product (PUS reinforced SA) presents good features of high hydrophobicity and lipophilicity after the surface is modified by trimethylchlorosilane (TMCS). In the product, the nanoporous SA granules were held by the PUS skeleton. The SA has excellent absorptivity for various solvents and oils. Moreover, the aerogels demonstrate remarkable elasticity which overcomes the fragility of pure SA without PUS. Furthermore, the preparation process is also cost effective hence the PUS reinforced SA could be recommended as solvent/oil absorbent for the water pollution industry. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：107 / 111

页数：5

共 13 条

[1] Pumping through Porous Hydrophobic/Oleophilic Materials: An Alternative Technology for Oil Spill Remediation [J].

Ge, Jin ;

Ye, Yin-Dong ;

Yao, Hong-Bin ;

Zhu, Xi ;

Wang, Xu ;

Wu, Liang ;

Wang, Jin-Long ;

Ding, Hang ;

Yong, Ni ;

He, Ling-Hui ;

Yu, Shu-Hong .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (14) :3612-3616

[2] Ambient pressure dried TEOS-based silica aerogels: good absorbents of organic liquids [J].

Gurav, Jyoti L. ;

Rao, A. Venkateswara ;

Nadargi, D. Y. ;

Park, Hyung-Ho .

JOURNAL OF MATERIALS SCIENCE, 2010, 45 (02) :503-510

[3] Hydrophobic and low density silica aerogels dried at ambient pressure using TEOS precursor [J].

Gurav, Jyoti L. ;

Rao, A. Venkateswara ;

Bangi, Uzma K. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :296-302

[4]

He S, 2014, ADV MAT RES, V1044-1045, P119

[5] Fate of Dispersants Associated with the Deepwater Horizon Oil Spill [J].

Kujawinski, Elizabeth B. ;

Soule, Melissa C. Kido ;

Valentine, David L. ;

Boysen, Angela K. ;

Longnecker, Krista ;

Redmond, Molly C. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (04) :1298-1306

[6] Macroscopic-Scale Template Synthesis of Robust Carbonaceous Nanofiber Hydrogels and Aerogels and Their Applications [J].

Liang, Hai-Wei ;

Guan, Qing-Fang ;

Chen, Li-Feng ;

Zhu, Zhu ;

Zhang, Wen-Jun ;

Yu, Shu-Hong .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (21) :5101-5105

[7] Synthesis and characterization of micrometer-sized silica aerogel nanoporous beads [J].

Sarawade, Pradip B. ;

Dang Viet Quang ;

Hilonga, Askwar ;

Jeon, Sun Jeong ;

Kim, Hee Taik .

MATERIALS LETTERS, 2012, 81 :37-40

[8] SHRINKAGE DURING DRYING OF SILICA-GEL [J].

SMITH, DM ;

SCHERER, GW ;

ANDERSON, JM .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 188 (03) :191-206

[9] Heavy oil sorption using exfoliated graphite - New application of exfoliated graphite to protect heavy oil pollution [J].

Toyoda, M ;

Inagaki, M .

CARBON, 2000, 38 (02) :199-210

[10] Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance [J].

Wu, Tao ;

Chen, Mingxi ;

Zhang, Lei ;

Xu, Xiaoyang ;

Liu, Yu ;

Yan, Jing ;

Wang, Wei ;

Gao, Jianping .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (26) :7612-7621

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