Journal ArticleDOI
Facile Fabrication of Flexible, Robust, and Superhydrophobic Hybrid Aerogel
Linbin Wang,Guomin Song,Xuxu Qiao,Gang Xiong,Yuemin Liu,Jiancheng Zhang,Ruilu Guo,Guangxin Chen,Zheng Zhou,Qifang Li +9 more
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TLDR
Several outstanding attributes have achieved in a single aerogel such as high specific surface area (SSA), high compression strength, high compression modulus and noticed compression flexibility.Abstract:
Silica aerogels, which are constructed with silica nanoparticles and numerous nanoscale pores, have many outstanding attributes, but they are usually brittle and hydrophilic. For the construction of a robust aerogel, the novel polyhedral oligomeric silsesquioxane (POSS) was introduced to prepare a series of aerogels possessing particles covered with elastic cushion to improve the mechanical property. The multialkoxy POSS, which possessed stiff Si-O-Si nanocages and flexible alkyl chains, was synthesized via thiol-ene click chemistry. After a facile and efficient approach, a partially ordered structure of SiO2 nanoparticles and organic elastic cushion would form spontaneously within the aerogels. With the POSS as the only precursor, several outstanding attributes were achieved in a single aerogel such as high specific surface area (SSA), high compression strength, high compression modulus, and noticeable compression flexibility. Meanwhile, the aerogel was superhydrophobic of which the contact angle (CA) was higher than 153°. Moreover, the potential application of oil-water separation is also presented.read more
Citations
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Robust Bifunctional Compressed Carbon Foam for Highly Effective Oil/Water Emulsion Separation.
TL;DR: This novel CCF material has great potential application in handling oily wastewater owing to its low-cost raw materials, easily scaled-up preparation process, excellent antifouling property and high separation capacity of the materials.
Journal ArticleDOI
Flexible and super hydrophobic polymethylsilsesquioxane based silica aerogel for organic solvent adsorption via ambient pressure drying technique
TL;DR: In this paper, the successful synthesis of the super hydrophobic polymethylsilsesquioxane (PMSQ) based silica aerogel via the sol-gel technique and ambient pressure drying method is proposed.
Journal ArticleDOI
Facile and Green Strategy for Designing Ultralight, Flexible, and Multifunctional PVA Nanofiber-Based Aerogels
Journal ArticleDOI
Preparation of superhydrophobic and flexible polysiloxane aerogel
TL;DR: In this article, a superhydrophobic and flexible silica aerogel with polysiloxane and multimethoxy-POSS was reported, the POSS was efficiently synthesized by thio-ene reaction and used as a crosslinking agent to strengthen the structure.
Journal ArticleDOI
2D → 3D conversion of superwetting mesh: A simple but powerful strategy for effective and efficient oil/water separation
Tingping Lei,Dahai Lu,Zhenjin Xu,Zhenjin Xu,Weikang Xu,Jing Liu,Xudong Deng,Junjie Huang,Lei Xu,Xiaomei Cai,Liwei Lin +10 more
TL;DR: In this paper, a 3D mesh container for continuous oil/water separation is proposed, which allows both oil and water to touch the container wall, ensuring the passage of wetting phase through the mesh.
References
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Journal ArticleDOI
Chemistry of Aerogels and Their Applications
Alain Pierre,Gerard Pajonk +1 more
TL;DR: Aerogels form a new class of solids showing sophisticated potentialities for a range of applications, and can develop very attractive physical and chemical properties not achievable by other means of low temperature soft chemical synthesis.
Journal ArticleDOI
Coherent Expanded Aerogels and Jellies
S. S. Kistler,S. S. Kistler +1 more
TL;DR: The continuity of the liquid permeating jellies is demonstrated by diffusion, syneresis, and ultrafiltration, and the fact that the liquid may be replaced by other liquids of very diverse character indicates clearly that the gel structure may be independent of the fluid in which it is bathed as mentioned in this paper.
Journal ArticleDOI
Nanoengineering Strong Silica Aerogels
TL;DR: In this article, the strength of silica aerogel monoliths was improved by cross-linking the nanoparticle building blocks of preformed silica hydrogels with poly(hexamethylene diisocyanate).
Journal ArticleDOI
Silica aerogel films prepared at ambient pressure by using surface derivatization to induce reversible drying shrinkage
TL;DR: In this article, a dip-coating method was proposed for aerogels without the need for supercritical extraction of the pore fluid from a wet gel, which prevents the network collapse that is otherwise induced by capillary forces.
Journal ArticleDOI
Highly Porous Polyhedral Silsesquioxane Polymers. Synthesis and Characterization
Chunxin Zhang,Florence Babonneau,Christian Bonhomme,Richard M. Laine,Christopher L. Soles,H. A. Hristov,Albert F. Yee +6 more
TL;DR: In this article, polyhedral octahydridosilsesquioxanes were copolymerized with stoichiometric amounts of octavinylsilssioxanes, [vinylSiO1.5]8 (2) and [(vinylMe2O)SiO 1.5]-8 (3) in toluene using platinum divinyltetramethyldisiloxane, “Pt(dvs)”, as catalyst.