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A solution blown superporous nonwoven hydrogel based on hydroxypropyl cellulose.
Soft Matter ( IF 2.9 ) Pub Date : 2020-06-29 , DOI: 10.1039/d0sm00724b Ting Yang Nilsson 1 , Markus Andersson Trojer 2
Soft Matter ( IF 2.9 ) Pub Date : 2020-06-29 , DOI: 10.1039/d0sm00724b Ting Yang Nilsson 1 , Markus Andersson Trojer 2
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A superporous hydrogel – in which the interconnecting fibres themselves are hydrogels – based on hydroxypropyl cellulose (HPC) has been produced using the nonwoven solution blown technique. The nonwoven fibres were subsequently thermally crosslinked with citric acid as identified by esterbond formation using FT-IR spectroscopy. The gel fraction was approximately 70%. The superporous HPC hydrogel exhibited a very fast water absorption, reaching an equilibrium absorption (80% water content) within 30 seconds. The equilibrium absorption was strongly codependent on both the fibre thickness and the pore size whereas the absorption rate was correlated with the pore size as established using standard linearized regression analysis.
中文翻译：
基于羟丙基纤维素的溶液吹制超孔非织造水凝胶。
使用非织造溶液吹塑技术生产了基于羟丙基纤维素（HPC）的超多孔水凝胶，其中的互连纤维本身就是水凝胶。随后将非织造纤维与柠檬酸热交联，如通过使用FT-IR光谱的酯键形成所鉴定的。凝胶分数约为70％。超多孔HPC水凝胶显示出非常快的吸水率，在30秒内达到平衡吸收（含水量80％）。平衡吸收与纤维厚度和孔径密切相关，而吸收率与孔径相关，如使用标准线性回归分析所确定的。
更新日期：2020-07-29
中文翻译：
基于羟丙基纤维素的溶液吹制超孔非织造水凝胶。
使用非织造溶液吹塑技术生产了基于羟丙基纤维素（HPC）的超多孔水凝胶，其中的互连纤维本身就是水凝胶。随后将非织造纤维与柠檬酸热交联，如通过使用FT-IR光谱的酯键形成所鉴定的。凝胶分数约为70％。超多孔HPC水凝胶显示出非常快的吸水率，在30秒内达到平衡吸收（含水量80％）。平衡吸收与纤维厚度和孔径密切相关，而吸收率与孔径相关，如使用标准线性回归分析所确定的。
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