Dynamic viscoelastic behavior of natural cellulose fibers caused by water and the related swelling phenomenon

Dynamic viscoelastic behavior of natural cellulose fibers caused by water and the related swelling phenomenon
复制标题

水引起的天然纤维素纤维的动态粘弹性行为及相关溶胀现象

DOI:
10.1007/s10570-023-05173-0
复制
发表时间:
2023
期刊:
影响因子:
5.7
通讯作者:
Yamane Chihiro
Yamane Chihiro
中科院分区:
材料科学2区
文献类型:
--
作者:
Okugawa Akari;Yuguchi Yoshiaki;Yamane Chihiro

文献摘要

参考文献

相似文献

近年来,再生纤维素纤维在水的作用下的松弛行为得到了研究。这些探索表明,在干燥状态下的513-552 K的玻璃化转变温度通过与水的相互作用被转移到室温。这种水诱导的行为也可能发生在天然纤维素纤维的转变中。在这项研究中,观察到天然纤维素纤维的tanδ峰值,其含水率为38-39%;然而,与再生纤维素纤维相比,天然纤维素纤维的弹性模量没有明显降低。这些发现表明,天然纤维素纤维的分子运动受水的存在的影响较小。小角X-射线散射显示肩膀在潮湿状态下,随着回潮率的增加,伴随着增加的长期棉和苎麻。这意味着水降低了无定形区域的密度,拓宽了纤维素分子之间的空间,并为纤维素主链中的微布朗运动创造了足够的空间。
Recently, the relaxation behaviors of regenerated cellulose fibers induced by water have been studied. These explorations suggest that the glass transition temperatures of 513–552 K in a dry state are shifted to room temperature by interaction with water. This water-induced behavior may also occur in the transitions of natural cellulose fiber. In this study, the peaks of tanδfor natural cellulose fibers with water regains of 38–39% were observed; however, decreases in the elastic modulus of natural cellulose fibers were not marked when compared with regenerated cellulose fibers. These findings suggest that the molecular motions of natural cellulose fibers are less influenced by the presence of water. Small-angle X-ray scattering showed shoulders in the wet state, with increasing water regain accompanied by increased long periods of cotton and ramie. This implies that water reduced the density of the amorphous region, widening spaces between cellulose molecules, and created sufficient space for micro-Brownian motion in the cellulose main chains.
DOI: 10.1023/a:1018415201945
发表时间: 1997
期刊: Cellulose
影响因子: 5.7
作者:
H. Ono;Miki Inamoto;K. Okajima;Y. Yaginuma
通讯作者: Y. Yaginuma
水引起的再生纤维素纤维的结构变化
DOI: 10.2115/fiber.53.8_321
发表时间: 1997
期刊: Sen-i Gakkaishi
影响因子: --
作者:
C. Yamane;H. Ono;T. Hongo;M. Saito;K. Okajima
通讯作者: K. Okajima
DOI: 10.2115/fiber.44.9_428
发表时间: 1986
期刊: Sen-i Gakkaishi
影响因子: --
作者:
Kazunori Kohata;M. Miyagawa;A. Takaoka;H. Kawai
通讯作者: H. Kawai
纤维素纤维的密度和折射率与其结构的关系
DOI: 10.1080/19447014708662932
发表时间: 1947
期刊: --
影响因子: --
作者:
P. H. Hermans
通讯作者: P. H. Hermans
湿纤维和干纤维的刚度和弹性与温度的关系
DOI: 10.1177/004051755902900303
发表时间: 1959
影响因子: 2.3
作者:
G. M. Bryant;A. T. Walter
通讯作者: A. T. Walter