A Novel, Controllable, and Efficient Method for Building Highly Hydrophobic Aerogels
Author:
Li Shu-Liang1, Wang Yu-Tao1, Zhang Shi-Jun1, Sun Ming-Ze2ORCID, Li Jie1, Chu Li-Qiu1, Hu Chen-Xi1, Huang Yi-Lun1, Gao Da-Li1, Schiraldi David A.2ORCID
Affiliation:
1. SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., 14 Beisanhuan East Road, Chaoyang District, Beijing 100013, China 2. Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106-7202, USA
Abstract
Aerogels prepared using freeze-drying methods have the potential to be insulation materials or absorbents in the fields of industry, architecture, agriculture, etc., for their low heat conductivity, high specific area, low density, degradability, and low cost. However, their native, poor water resistance caused by the hydrophilicity of their polymer matrix limits their practical application. In this work, a novel, controllable, and efficient templating method was utilized to construct a highly hydrophobic surface for freeze-drying aerogels. The influence of templates on the macroscopic morphology and hydrophobic properties of materials was investigated in detail. This method provided the economical and rapid preparation of a water-resistant aerogel made from polyvinyl alcohol (PVA) and montmorillonite (MMT), putting forward a new direction for the research and development of new, environmentally friendly materials.
Funder
Young Talents Support Project
Subject
Polymers and Plastics,Organic Chemistry,Biomaterials,Bioengineering
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