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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >An improved physico-mechanical performance of macropores membrane made from synthesized cellulose carbamate
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An improved physico-mechanical performance of macropores membrane made from synthesized cellulose carbamate

机译：一种改进由合成纤维素氨基甲酸酯制成的大孔膜的物理力学性能

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Under hydrothermal condition, kenaf cellulose carbamate (KCC) was synthesized using urea and kenaf core pulp (KCP) without catalyst and organic solvent. The KCC was prepared with various urea/KCP ratios (2:1, to 4:1 and 6:1) with the aid of autoclave and oil bath, whereas the regenerated KCC membranes were formed via solution casting method. The physical and thermal properties of KCC were studied. The urea/KCP ratio used in preparing KCC corresponds with the nitrogen percentage obtained in KCC. The formation of the regenerated KCC mem-branes could be confirmed by the existence of cellulose II through X-ray diffraction (XRD) study. As examined by Field emission scanning electron microscope (FESEM), the regenerated KCC membranes possessed the greater pore size structures at higher urea concentration. Mechanical results showed the tensile strength and modulus of regenerated KCC membranes have improved up to 43.4% and 76.9%, respectively, as compared to native KCP membrane. It can be concluded from the findings that synthesizing KCC and its membranes with improved me-chanical properties has broad prospects for potential industrial applications such as biomembranes and packag-ing materials. (C) 2020 Elsevier B.V. All rights reserved.
机译：在水热条件下，洋麻纤维素氨基甲酸酯（KCC）使用尿素和洋麻芯浆（KCP）没有催化剂和有机溶剂的合成。所述KCC与各种脲/ KCP比制备（2：1，4：1和6：1）用高压釜和油浴的帮助，而分别通过溶液流延法形成的再生KCC膜。 KCC的物理性能和热性能进行了研究。在制备KCC使用的脲/ KCP比随着KCC得到的氮百分比对应。再生KCC MEM-branes的形成可通过纤维素II的通过X射线衍射（XRD）研究的存在来确认。如通过检查场发射扫描电子显微镜（FESEM），再生KCC膜所具有的更大的孔尺寸的结构在较高的尿素浓度。机械结果表明，拉伸强度和再生KCC膜的弹性模量也提高到分别43.4％和76.9％，相比于天然KCP膜。它可以从调查结果可以得出的结论是合成KCC和膜具有改善我，机械性能具有潜在的工业应用，如生物膜和packag-ING材料前景广阔。 （c）2020 Elsevier B.v.保留所有权利。

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