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Rectorite-based flame-retardant aerogel, and preparation and application thereof
The invention relates to the technical field of aerogel flame-retardant materials, and particularly provides rectorite-based flame-retardant aerogel. The aerogel comprises polyaniline/polyvinyl alcohol composite aerogel and a rectorite@cellulose nanocrystalline composite material compounded in the composite aerogel in situ. The rectorite@cellulose nanocrystalline composite material comprises two-dimensional rectorite and one-dimensional cellulose nanocrystal compounded between layers and/or on the surface of rectorite. The invention also provides a preparation method of the flame-retardant aerogel. The preparation method comprises the following steps: innovatively carrying out self-assembly modification on the rectorite by using cellulose nanocrystals in advance, carrying out aniline in-situ polymerization and mutual doping modification of PVA, and finally, carrying out freeze drying to obtain the flame-retardant aerogel. The flame-retardant aerogel disclosed by the invention has excellent mechanical properties and flame retardance.
本发明涉及气凝胶阻燃材料技术领域，具体提供了一种累托石基阻燃气凝胶，包括聚苯胺/聚乙烯醇复合气凝胶、以及原位复合在该复合气凝胶中的累托石@纤维素纳米晶复合材料；所述的累托石@纤维素纳米晶复合材料包括二维的累托石以及复合在其层间和/或表面的一维纤维素纳米晶。本发明还提供了所述的阻燃气凝胶的制备方法，其创新地预先将纤维素纳米晶对累托石进行自组装改性，随后再进行苯胺原位聚合以及PVA的互掺改性，最后冷冻干燥得到所述的阻燃气凝胶。本发明所述的阻燃气凝胶，具有优异的机械性能和阻燃性能。
Rectorite-based flame-retardant aerogel, and preparation and application thereof
The invention relates to the technical field of aerogel flame-retardant materials, and particularly provides rectorite-based flame-retardant aerogel. The aerogel comprises polyaniline/polyvinyl alcohol composite aerogel and a rectorite@cellulose nanocrystalline composite material compounded in the composite aerogel in situ. The rectorite@cellulose nanocrystalline composite material comprises two-dimensional rectorite and one-dimensional cellulose nanocrystal compounded between layers and/or on the surface of rectorite. The invention also provides a preparation method of the flame-retardant aerogel. The preparation method comprises the following steps: innovatively carrying out self-assembly modification on the rectorite by using cellulose nanocrystals in advance, carrying out aniline in-situ polymerization and mutual doping modification of PVA, and finally, carrying out freeze drying to obtain the flame-retardant aerogel. The flame-retardant aerogel disclosed by the invention has excellent mechanical properties and flame retardance.
本发明涉及气凝胶阻燃材料技术领域，具体提供了一种累托石基阻燃气凝胶，包括聚苯胺/聚乙烯醇复合气凝胶、以及原位复合在该复合气凝胶中的累托石@纤维素纳米晶复合材料；所述的累托石@纤维素纳米晶复合材料包括二维的累托石以及复合在其层间和/或表面的一维纤维素纳米晶。本发明还提供了所述的阻燃气凝胶的制备方法，其创新地预先将纤维素纳米晶对累托石进行自组装改性，随后再进行苯胺原位聚合以及PVA的互掺改性，最后冷冻干燥得到所述的阻燃气凝胶。本发明所述的阻燃气凝胶，具有优异的机械性能和阻燃性能。
Rectorite-based flame-retardant aerogel, and preparation and application thereof
一种累托石基阻燃气凝胶及其制备和应用
YANG HUAMING (author) / XIE WEIMIN (author) / OUYANG JING (author) / FU LIANGJIE (author) / TANG AIDONG (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
C08J
Verarbeitung
,
WORKING-UP
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
STRAW AEROGEL FLAME-RETARDANT INSULATION BOARD AND PREPARATION METHOD THEREOF
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