Investigation of the time-dependent friction behavior of polyacrylamide hydrogels

被引：13

作者：

Qiu, Xiaoyong ^{[1
]}

Yan, Yonggan ^{[2
,3
,4
,5
]}

Zhang, Guimin ^{[6
]}

Huang, Jun ^{[7
]}

Zhao, Yiming ^{[7
]}

Xia, Xianglai ^{[6
]}

Cui, Xin ^{[8
]}

Zhang, Xiaolai ^{[1
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid, Interface Chem,Minist Educ, Jinan 250100, Shandong, Peoples R China

[2] Shandong Univ, Sch & Hosp Stomatol, Cheeloo Coll Med, Jinan 250012, Peoples R China

[3] Shandong Univ, Shandong Key Lab Oral Tissue Regenerat, Jinan 250012, Peoples R China

[4] Shandong Univ, Shandong Engn Lab Dent Mat & Oral Tissue Regenerat, Jinan 250012, Peoples R China

[5] Shandong Univ, Shandong Prov Clin Res Ctr Oral Dis, Jinan 250012, Peoples R China

[6] Natl Engn & Technol Res Ctr Chiral Pharmaceut, Linyi 276006, Shandong, Peoples R China

[7] Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Manufacture, Minist Educ, Jinan 250061, Shandong, Peoples R China

[8] Natl Innovat Inst Def Technol, Adv Interdisciplinary Technol Res Ctr, Beijing 100071, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2023年 / 659卷

基金：

中国国家自然科学基金;

关键词：

Hydrogel; Friction; Time-dependence; Relaxation mechanism; Lubrication; ELASTOHYDRODYNAMIC LUBRICATION; SURFACE; POLYETHYLENIMINE; NANOPARTICLES; ADSORPTION; CARTILAGE; HYDRATION; CHARGE;

D O I：

10.1016/j.colsurfa.2022.130753

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hydrogels have attracted enormous frictional investigation owing to their great potential in hydration lubrication. Researchers have revealed that the lubrication behavior of hydrogel depends on a number of parameters such as contact area, sliding velocity, and solution condition. However, less effort has been devoted to understanding the time-dependent friction behavior of polymeric hydrogels. In this work, the time-dependent behavior of hydrogel friction was systematically investigated through three typical polyacrylamide hydrogels (PAM, PAMPEI, and PAM-PAA) on a rheometer. Interestingly, the friction coefficients (mu) of the hydrogels varied with time, and two distinct regimes (viz., the friction-decrease regime and friction-constant/increase regime) were

引用

页数：9

共 47 条

[1] The charge of glass and silica surfaces [J].