High performance soft fiber-reinforced sodium alginate/polyacrylamide double-network hydrogels

IF 4.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International Pub Date : 2024-12-01 DOI:10.1016/j.pnsc.2024.10.007

Xiaodan Wang , Dan Xie , Wenwen Hou, Lilong Gao, Yanzhi Xia, Kunyan Sui

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Abstract

Strong and stretchable hydrogels are in great demand but challenging due to the trade-off between the strength and stretchability. Here, we successfully prepared highly strong and stretchable sodium alginate/polyacrylamide (SA/PAM) double network (DN) hydrogels by using swollen calcium alginate fiber (CAF) as the first energy dissipating network. The swollen fibers contributed two functions: the homogeneous SA ionic crosslinked-polymer networks and the soft fiber reinforcement. In contrast to the stiff fiber, the soft CAF provide more effective energy dissipation transferring from soft fiber to the liquid hydrogel. The as-prepared hydrogels demonstrated a high tensile strength (0.83 MPa), high stretchability (4230 %), and high toughness (15.7 MJ/m³), as 5, 3 and 14 times of the SA/PAM hydrogels. This soft fiber-reinforced strategy offers a new way for preparing high-performance hydrogels, broadening their applications areas.

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高性能软纤维增强海藻酸钠/聚丙烯酰胺双网水凝胶

强而可拉伸的水凝胶需求量很大，但由于强度和拉伸性之间的权衡，具有挑战性。本文以膨化海藻酸钙纤维（CAF）为第一耗能网络，成功制备了具有高强度和可拉伸性的海藻酸钠/聚丙烯酰胺（SA/PAM）双网（DN）水凝胶。膨胀纤维具有两种功能：均相SA离子交联聚合物网络和软纤维增强。与硬纤维相比，软纤维提供了更有效的能量耗散从软纤维到液体水凝胶的传递。所制备的水凝胶具有高拉伸强度（0.83 MPa）、高拉伸率（4230%）和高韧性（15.7 MJ/m3），分别是SA/PAM水凝胶的5倍、3倍和14倍。这种软纤维增强策略为制备高性能水凝胶提供了新的途径，拓宽了其应用领域。

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.

文献相关原料

公司名称

产品信息

阿拉丁

acrylamide (AM)

阿拉丁

N,N-methylenebisacrylamide (MBAA)

阿拉丁

N,N,N'N'-tetramethylethylenediamine

阿拉丁

ammonium persulfate (APS)