材料工程2024，Vol.52Issue(4)：183-191,9.DOI:10.11868/j.issn.1001-4381.2023.000158
两性离子-阴离子双交联P(AAm-co-AAc-co-SBMA-co-AMPS)/Fe3+水凝胶的摩擦学性能研究
Tribological properties of zwitterionic-anionic dual-crosslinked P(AAm-co-AAc-co-SBMA-co-AMPS)/Fe3+ hydrogel
摘要
Abstract
Hydrogel is an ideal material for cartilage repair,but it is difficult for artificial materials to achieve ultra-low friction coefficient of cartilage at present.The amphoteric ion anionic double crosslinked P(AAm-co-AAc-co-SBMA-co-AMPS)/Fe3+hydrogel was synthesized by using the amphoteric monomer[2-(methacryloxy)ethyl]dimethyl-(3-sulfopropyl)(SBMA)and the anionic monomer 2-acrylamido-2-methylpropane sulfonic acid(AMPS).The frictional tests were conducted in water and PBS to evaluate the effects of zwitterionic and anionic groups on the coefficient of friction(CoF).The results show that the physical crosslinking point introduced by SBMA and AMPS can improve the compressive strength of hydrogel,and achieve a low CoF(0.04)in water,In addition,it is observed that CoF further decreases to 0.015 in PBS,and the decrease of CoF is caused by the highly hydrated upper layer of hydrogel produced during PBS soaking.关键词
水凝胶/润滑/承重/摩擦/软骨修复Key words
hydrogel/lubrication/load-bearing/friction/cartilage repair分类
化学化工引用本文复制引用
李子恒,王斌斌,尤德强,李卫,王小健..两性离子-阴离子双交联P(AAm-co-AAc-co-SBMA-co-AMPS)/Fe3+水凝胶的摩擦学性能研究[J].材料工程,2024,52(4):183-191,9.基金项目
广东省基础与应用基础研究基金联合基金(2022A15150112 61) （2022A15150112 61）
中央高校基本科研专项资金(21620110) （21620110）
广东省教育厅项目(2020ZDZX2024) （2020ZDZX2024）
