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245 1 0 _aMulti-crosslinked, ecofriendly flame-retardant starch-based composite aerogels with high compression-resistance
490 0 _aPolymer Engineering and Science. 63(1), 154-166, 2023, DOI: 10.1002/pen.26194
520 3 _aTo achieve ecofriendly aerogels with high mechanics and fire resistance, naturally-occurring pea starch was employed as the major substrate, and starch-based composite aerogels were fabricated by freeze-drying method. The corresponding hydrogels were obtained through successive gelatinization/dissolution of pea starch and polyvinyl alcohol (PVA), formation of precursor hydrogels via cyclic freeze-thawing, followed by treatment with borax aqueous solution. Borax treatment not only results in aerogels with high mechanics, but also endows the aerogels flame-retardant property. The final aerogels show high compression-resistance, with a maximum specific compressive modulus achieved at ~44 MPa and the yield strength 665 kPa, owing to the formation of a multi-crosslinked hybrid network. The maximum limiting oxygen index (LOI) of the aerogels exceeds 34. The peak heat release rate, the heat release capacity, and the total heat release decrease 74.5%, 76.2%, and 73.8% after borax treatment. Moreover, the obtained aerogels demonstrate good thermal stability and thermal insulation. The good performance is conducive for practical application. © 2022 Society of Plastics Engineers.
650 1 4 _aAERO
650 1 4 _aFLAME RETARDANCE
650 1 4 _aGELS
650 1 4 _aMECHANICAL PROPERTIES
650 1 4 _aPOLYSACCHARIDE
650 1 4 _aPOLYVINYL ALCOHOL
700 1 2 _aShi S.
700 1 2 _aJiang Y.
700 1 2 _aJi Q.
700 1 2 _aXing Y.
700 1 2 _aMa X.
700 1 2 _aXia Y.
856 4 0 _uhttps://drive.google.com/file/d/125UiOizvD5e6FDDxf2AiggawWzipQBbN/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta @cicy.edu.mx
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