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Outstanding Toughness of Cherry Bark Achieved by Helical Spring Structure of Rigid Cellulose Fiber Combined with Flexible Layers of Lipid Polymers
Advanced Materials ( IF 29.4 ) Pub Date : 2018-01-03 , DOI: 10.1002/adma.201705315 Kayoko Kobayashi 1 , Yoko Ura 2 , Satoshi Kimura 3 , Junji Sugiyama 1, 4
Advanced Materials ( IF 29.4 ) Pub Date : 2018-01-03 , DOI: 10.1002/adma.201705315 Kayoko Kobayashi 1 , Yoko Ura 2 , Satoshi Kimura 3 , Junji Sugiyama 1, 4
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Cellulose, a main component of cell walls, generally makes materials hard and brittle. However, an ultratough, cellulosic material is found in nature: cherry bark. Surprisingly, it elongates by more than twice of its initial length and behaves as a plastic film during stretching. This amazing mechanical property is achieved by a well‐designed cell wall structure; cellulose fibers are folded like helical springs, covered by multiple flexible layers of lipid polymers.
中文翻译:
刚性纤维素纤维的螺旋弹簧结构结合脂质聚合物的柔性层获得的樱桃树皮出色的韧性
纤维素是细胞壁的主要成分,通常会使材料变硬而变脆。但是,自然界中发现了一种超韧的纤维素材料:樱桃树皮。令人惊讶的是,它伸长了其初始长度的两倍以上,并且在拉伸过程中表现为塑料薄膜。精心设计的细胞壁结构可实现这种惊人的机械性能。纤维素纤维像螺旋弹簧一样折叠,被脂质聚合物的多个柔性层覆盖。
更新日期:2018-01-03
中文翻译:
刚性纤维素纤维的螺旋弹簧结构结合脂质聚合物的柔性层获得的樱桃树皮出色的韧性
纤维素是细胞壁的主要成分,通常会使材料变硬而变脆。但是,自然界中发现了一种超韧的纤维素材料:樱桃树皮。令人惊讶的是,它伸长了其初始长度的两倍以上,并且在拉伸过程中表现为塑料薄膜。精心设计的细胞壁结构可实现这种惊人的机械性能。纤维素纤维像螺旋弹簧一样折叠,被脂质聚合物的多个柔性层覆盖。