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High-resilience cotton base yarn for anti-wrinkle and durable heat-insulation fabric
Composites Part B: Engineering ( IF 12.7 ) Pub Date : 2021-02-03 , DOI: 10.1016/j.compositesb.2021.108663
Kai Wang , Chiyu Fu , Rui Wang , Guangming Tao , Zhigang Xia

The hollow structural yarn of cellulose fibers can be easily flattened to remove their heat insulation ability and folded to incur unfavorable wrinkles. In contrast, natural hollow bamboos are flexible and shape-preserving with regard to external forces, and hollow cocoons are heat insulating to protect silkworms. Inspired by hollow bamboos and cocoons, a high resilience cotton base (i.e., silicon tube/cotton composite hollow, denoted as SCH) yarn was constructed by embedding a continuous hollow silicon tube into the cotton wrapping sheath, aiming to mitigate hollow cellulose yarn collapse and wrinkle problems. Comparatively, three other structural cotton base yarns were also designed: cotton core (CC), vinylon-core/cotton-sheath (VC) and vinylon-dissolved cotton hollow (VCH) yarns. ABAQUS CAE was applied to conduct a comparative theoretical finite element analysis of the heat transfer performance of the four different yarns. The theoretical analysis results indicated that the SCH yarn showed the minimum heat transfer performance to obtain maximum heat insulation. Then, the CC, SCH, VC and VCH yarns were fabricated into woven fabrics. The corresponding yarn structure, properties and fabric performance were comparatively analyzed. The analyzed results indicated that the SCH yarn was stronger and more elastic than other yarns, resulting in a maximum anti-wrinkle performance. The compression rebound ratio of the SCH yarn fabric (85.07%) was much higher than that of the VCH yarn fabric (18.78%) and other fabrics, indicating the excellent recovery ability of the SCH yarn. Different from other yarns, SCH yarn stored static air in the silicone tube, allowing a minimum permeability of air. Accordingly, the SCH yarn fabric had a more durable heat insulation rate than the other yarn fabrics.



中文翻译:

高弹性棉基纱,用于抗皱和耐用的隔热织物

纤维素纤维的中空结构纱可以很容易地弄平以消除其隔热能力,并且可以折叠以产生不利的皱纹。相比之下,天然空心竹子具有柔韧性,并且在外力方面保持形状,空心茧具有隔热性,可以保护蚕。受空心竹子和茧的启发,通过将连续的空心硅管嵌入棉包皮中来构建高回弹力棉基(即硅管/棉复合空心,表示为SCH),以减轻空心纤维素纱的塌缩和皱纹问题。相比之下,还设计了其他三种结构棉基纱:棉芯(CC),维尼纶芯/棉鞘(VC)和维尼纶溶解棉空心(VCH)纱线。ABAQUS CAE用于对四种不同纱线的传热性能进行比较理论有限元分析。理论分析结果表明,SCH纱表现出最小的传热性能,以获得最大的隔热性。然后,将CC,SCH,VC和VCH纱线制成机织织物。对相应的纱线结构,性能和织物性能进行了比较分析。分析结果表明,SCH纱线比其他纱线更坚固,更有弹性,从而具有最大的抗皱性能。SCH纱织物的压缩回弹率(85.07%)远高于VCH纱织物(18.78%)和其他织物的压缩回弹率,表明SCH纱具有出色的恢复能力。与其他纱线不同 SCH纱线将静态空气存储在硅胶管中,从而使空气的渗透率降至最低。因此,SCH纱线织物具有比其他纱线织物更持久的绝热率。

更新日期:2021-02-15
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