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Charge Regulated Di...
Charge Regulated Diffusion of Silica Nanoparticles into Wood for Flame Retardant Transparent Wood
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- Samanta, Archana, Post doc Researcher (author)
- KTH,Fotonik
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- Höglund, Martin (author)
- KTH,Biokompositer,Wallenberg Wood Science Center
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- Samanta, Pratick (author)
- KTH,Fiber- och polymerteknologi,Wallenberg Wood Science Center
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- Popov, Sergei (author)
- KTH,Fotonik
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- Sychugov, Ilya (author)
- KTH,Fotonik
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- Maddalena, Lorenza (author)
- Politecnico di Torino Alessandria Site, Viale Teresa Michel 5 Alessandria 15121 Italy
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- Carosio, Federico (author)
- Politecnico di Torino Alessandria Site, Viale Teresa Michel 5 Alessandria 15121 Italy
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- Berglund, Lars, 1956- (author)
- KTH,Biokompositer,Wallenberg Wood Science Center
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(creator_code:org_t)
- 2022-01-27
- 2022
- English.
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In: Advanced Sustainable Systems. - : Wiley. - 2366-7486 .- 2366-7486. ; 6:4, s. 2100354-2100354
- Related links:
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https://doi.org/10.1...
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The preparation of wood substrates modified by charged inorganic nanoparticles (NPs) diffusing into the internal cell wall structure is investigated for generating functional properties. The flammability problem of wood biocomposites is addressed. NPs applied from colloidal sols carry charge to stabilize them against aggregation. The influence of charge on particle diffusion and adsorption should play a role for their spatial distribution and localization in the wood substrate biocomposite. It is hypothesized that improved dispersion, infiltration, and stability of NPs into the wood structure can be achieved by charge control diffusion, also restricting NP agglomeration and limiting distribution to the wood cell wall. Cationic and anionic silica NPs of ≈30 nm are therefore allowed to diffuse into bleached wood. The influence of charge on distribution in wood is investigated as a function of initial sol concentration. Transparent wood is fabricated by in situ polymerization of a thiolene in the wood pore space. These biocomposites demonstrate excellent flame retardancy with selfextinguishing characteristics. The approach has potential for commercial fabrication of flame retardant transparent composites for glazing and other building applications.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Chemical Engineering
- Kemiteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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