文献类型：期刊文献

英文题名：Improved adhesion between glass fiber and PAAm/SA hydrogel via a synergy strategy

作者：Zhou, Shiyi[1];Li, Pan[1];Yin, Sihan[1];Lu, Yi[1];Wang, Jilong[1,2,3];Hu, Xuefeng[4];Zhang, Xintian[4];Deng, Linfeng[4];Liu, Yongkun[1,2,3];Luo, Xiongfang[1];Wang, Jian[1,2,3];Lou, Lihua[5];Qiu, Jingjing[6];Zou, Zhuanyong[1,2,3]

机构：[1]Shaoxing Univ, Coll Text & Garment, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Zhejiang, Peoples R China;[2]Shaoxing Univ, Shaoxing Key Lab High Performance Fibers & Prod, Shaoxing, Peoples R China;[3]Shaoxing Univ, Natl Engn Res Ctr Fiber Based Composites, Shaoxing Sub Ctr, Shaoxing, Zhejiang, Peoples R China;[4]Donghua Univ, Coll Text, Shanghai Frontiers Sci Ctr Adv Text, Shanghai 201620, Peoples R China;[5]Clemson Univ, Dept Mech Engn, NanoBio Mech & Mfg Lab NBM2, Clemson, SC 29634 USA;[6]Texas A&M Univ, Dept Mech Engn, College Stn, TX USA

年份：2025

外文期刊名：POLYMER COMPOSITES

收录：SCI-EXPANDED(收录号：WOS:001476388500001)、、EI(收录号：20251818334496)、Scopus(收录号：2-s2.0-105003823322)、WOS

基金：National College Student Innovation and Entrepreneurship Project, Grant/Award Number: 202210349022; Shaoxing Science and Technology Project, Grant/Award Number: 2023A11011; Startup funds from Clemson University, the Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Grant/Award Numbers: QJRZ2311, QJRZ2207; the Research Start-Up Project and School-Level Project of Shaoxing University, "Pioneer" and "Leading Goose" R&D Program of Zhejiang, Grant/Award Number: 2023C01097; Shaoxing Industrial Key Technology Research Plan Project, Grant/Award Number: 2023B41002

语种：英文

外文关键词：dual-network hydrogel; glass fiber-reinforced hydrogels; interfacial strength; polyacrylamide; sodium alginate; TMSPMA

外文摘要：Fiber-reinforced hydrogels remain mechanically inferior to natural cartilage, primarily due to underexplored design issues at the matrix-fiber interfaces. In this study, a synergy strategy combining chemical bonding, topology of connection, and energy dissipation is used to improve the interfacial properties of glass fiber and calcium crosslinking polyacrylamide/sodium alginate (PAAm/SA) double-network hydrogels. Using gamma-(methacryloyloxy)propyltrimethoxysilane (TMSPMA) as a functional modifier is explored to enhance the chemical bonding between the glass fibers and hydrogels. Interfacial shear strength is quantified through pull-out tests, revealing a significant improvement after chemical modification. Specifically, TMSPMA-treated samples exhibit an interfacial shear strength of 28.8 +/- 2.3 MPa, compared to 5.5 +/- 0.4 MPa for untreated samples. The study further examines the influence of energy dissipation via ionic crosslinking, showing that Ca2+ crosslinked hydrogels achieved superior interfacial strength (28.8 +/- 2.3 MPa), which is 3-4 times higher than that of Ba2+ and Fe3+ crosslinked counterparts. Additionally, introducing 2-6 twists to the fiber bundle reduces interfacial strength by similar to 1.4-1.8-fold, showing that topology area is also essential to the hydrogel adhesion. These findings contribute to the understanding of interfacial properties between fiber and hydrogel and hold potential for advancing load-bearing biological substitute designs. Highlights Glass fiber is modified by TMSPMA to increase chemical bonding 2 wt% TMSPMA-treated samples exhibit a superior interfacial shear strength of 28.8 MPa Higher concentration TMSPMA leads to filled gaps in glass fiber bundles. Ca2+ crosslinked hydrogels achieved superior interfacial properties compared to Ba2+ and Fe3+ Hydrogel adhesion relies on chemical bonds, topology, area, and energy dissipation.