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仿生低碳建筑材料:从沙塔蠕虫巢穴到新一代建筑
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作者 管庆方 俞书宏 《Science Bulletin》 SCIE EI CAS CSCD 2024年第4期431-433,共3页
Traditional production process of cement-based building materials is always accompanied with massive carbon emissions and tremendous energy consumptions because of the calcination process under ultra-high temperature.
关键词 TEMPERATURE 低碳建筑 沙塔
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Multiscale cellulose-based fireproof and thermal insulation gel materials with water-regulated forms
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作者 Chong-Han Yin Huai-Bin Yang +4 位作者 Zi-Meng Han Kun-Peng Yang Zhang-Chi Ling qing-fang guan Shu-Hong Yu 《Nano Research》 SCIE EI CSCD 2023年第2期3379-3386,共8页
Different forms of construction materials(e.g.,paints,foams,and boards)dramatically improve the quality of life.With the increasing environmental requirements for buildings,it is necessary to develop a comprehensive s... Different forms of construction materials(e.g.,paints,foams,and boards)dramatically improve the quality of life.With the increasing environmental requirements for buildings,it is necessary to develop a comprehensive sustainable construction material that is flexible in application and exhibits excellent performance,such as fireproofing and thermal insulation.Herein,an adjustable multiform material strategy by water regulation is proposed to meet the needs of comprehensive applications and reduce environmental costs.Multiform gels are constructed based on multiscale cellulose fibers and hollow glass microspheres,with fireproofing and thermal insulation.Unlike traditional materials,this multiscale cellulose-based gel can change forms from dispersion to paste to dough by adjusting its water content,which can realize various construction forms,including paints,foams,and low-density boards according to different scenarios and corresponding needs. 展开更多
关键词 BIOINSPIRED multiscale structure NANOCELLULOSE water regulation gel material
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Growing Bacterial Cellulose-Based Sustainable Functional Bulk Nanocomposites by Biosynthesis:Recent Advances and Perspectives 被引量:1
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作者 qing-fang guan Zi-Meng Han +2 位作者 Zhang-Chi Ling Huai-Bin Yang Shu-Hong Yu 《Accounts of Materials Research》 2022年第6期608-619,共12页
In recent years,with the continuous development of nanomaterials and composite preparation methods,nanocomposites are playing an increasingly important role as structural materials or functional materials due to their... In recent years,with the continuous development of nanomaterials and composite preparation methods,nanocomposites are playing an increasingly important role as structural materials or functional materials due to their outstanding properties.As an important part of nanocomposites,polymerbased nanocomposites have attracted the interest of researchers,whose preparation methods have been significantly expanded with the rapid development of polymer chemistry and physics.At present,nanomaterials can be combined with the polymer matrix to form various nanocomposite materials in multiple ways,ranging from simple blending to complex processes combining surface modification and in situ polymerization.However,these polymerbased nanocomposites are still limited by their incompatibility of structural strength and functionality and unsustainability of the preparation processes.As a new type of polymer-based materials,the polymers synthesized by microorganisms,especially bacterial cellulose(BC)produced by bacteria such as Gluconacetobacter xylinus,have great potential to overcome the above-mentioned problems.On the one hand,BC has a fine nanoscale three-dimensional(3D)network with extremely high strength.The continuous nanoscale 3D network means that the nanomaterials composited with BC can be interspersed in a 3D network,effectively exerting their functionality without compromising the strength of the composites.On the other hand,the process of microbial production of BC is completed under normal pressure and temperature without using toxic reagents and solvents,which gives it a huge advantage in terms of sustainability over traditional polymer synthesis.Unfortunately,the high-density 3D nanoscale network of BC is too tight to allow the entry of nanomaterials in a homogeneous way,which brings great difficulties to the composite process of BC and nanomaterials.Challenging this problem,a new in situ composite preparation strategy called aerosol-assisted biosynthesis(AABS)strategy has been proposed as a solution.This strategy cleverly combines the deposition of nanomaterial-contained aerosol and microbial synthesis of BC,leading to uniform dispersion of various nanomaterials in the BC network and the formation of nanocomposites.In this Account,we review the development history of composite preparation methods and discuss its trend from the perspective of matching of its critical factors in dimensions of space and time.From the view of the spatiotemporal overlap of the factors,we analyze how this AABS strategy combines the BC synthesis process and the composite formation in the dimensions of space and time,resulting in the universality,tunability,designability,scalability,sustainability,and other advantages of the AABS strategy.Furthermore,we look forward to the future where AABS-based composite preparation systems can be combined with artificial intelligence and automation systems to realize fully automatic and sustainable biointelligent fabrication. 展开更多
关键词 composite composites preparation
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A superspreading layering process enabled high performance layered nanocomposites
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作者 qing-fang guan Shu-Hong Yu 《Science China Chemistry》 SCIE EI CAS CSCD 2020年第7期873-874,共2页
Biomaterials like nacre, bones and mollusk shells provide a rich source of inspiration for developing mechanically strong and tough composites. They have stimulated great research interest to explore various methods t... Biomaterials like nacre, bones and mollusk shells provide a rich source of inspiration for developing mechanically strong and tough composites. They have stimulated great research interest to explore various methods to prepare artificially synthetic composites with desired strength and toughness for practical applications. In addition to mineralization [1], a number of approaches, such as vacuum filtration. 展开更多
关键词 COMPOSITES TOUGH SHELLS
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