| 多孔再生纤维素/聚乳酸复合材料的制备与性能 |
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| 引用本文： | 滕健,张亮青,林胜强,唐建华,钟淦基,李忠明.多孔再生纤维素/聚乳酸复合材料的制备与性能[J].高分子材料科学与工程,2017,33(4). |
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| 作者姓名： | 滕健 张亮青 林胜强 唐建华 钟淦基 李忠明 |
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| 作者单位： | 1. 四川大学化学工程学院,四川成都,610065;2. 四川大学高分子科学与工程学院,四川成都,610065 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 通过简易、绿色环保的方法,将纤维素用NaOH/尿素体系进行溶解、再生、冷冻干燥获得再生纤维素(RC)多孔材料,再浸渍聚乳酸(PLA)获得多孔RC/PLA复合材料。该复合材料具有与多孔RC材料相同的开孔结构,超轻,高孔隙率等特性。随PLA的引入,多孔复合材料的三维纤维网络结构向密实片层结构转变,缺陷结构逐渐完善,其压缩强度大幅度提高。RC/PLA的压缩强度和模量相比于RC分别提高了369.8%和633.6%。
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| 关 键 词： | 多孔材料 再生纤维素 聚乳酸 压缩力学性能 |
Fabrication and Mechanical Properties of Porous Materials Formed by Regenerated Cellulose with Poly(lactic acid) |
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| Jian Teng,Liangqing Zhang,Shengqiang Lin,Jianhua Tang,Ganji Zhong,Zhongrning Li.Fabrication and Mechanical Properties of Porous Materials Formed by Regenerated Cellulose with Poly(lactic acid)[J].Polymer Materials Science & Engineering,2017,33(4). |
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| Authors: | Jian Teng Liangqing Zhang Shengqiang Lin Jianhua Tang Ganji Zhong Zhongrning Li |
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| Abstract: | The porous regenerated cellulose (RC) materials were fabricated via simple and environmentally friendly NaOH/urea/H2O solvent to dissolve cellulose followed by regeneration and freeze-dry.And the porous regenerated cellulose/poly(lactic acid) (RC/PLA) composites were obtained by immersing porous RC materials in impregnation solution of PLA.Similar to porous RC materials,porous RC/PLA composites have the same properties with open porous structure,ultra-light and high porosity.And the compressive strength and elastic modulus of porous RC/PLA composites are 369.8 ％ and 633.6 ％ higher than those of porous RC materials,respectively,due to the morphology of porous structure transition from 3D fibrillar network to close-grained sheet network and the defective porous structure is repaired with the PLA loading. |
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| Keywords: | porous materials regenerated cellulose poly(lactic acid) compression mechanical properties |
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