Delayed fractureFatigue fracturePolyacrylamideRapid advances are taking place to develop hydrogels of high stretchability and toughness, but fatigue fracture has not been studied for any hydrogels. This neglige
Robust ionic sensing materials that are both fatigue-resistant and self-healable like human skin are essential for soft electronics and robotics with extended service life. However, most existing self-healable artificial ionic skins produced on the basis
fibres, the resulting hydrogels showed an unusual combination of high mechanical strength (fracture stress ~4.1 MPa), ultrahigh toughness (fracture energy ~25.3 kJ m−2), excellent fatigue resistance (fatigue threshold ~424 J m−2) and almost 100% mechanical recovery in one ...
to fatigue- 54 crack propagation after prolonged cycles of loads is the energy required to fracture a single layer 55 of polymer chains (i.e., the intrinsic fracture energy of the hydrogel), which is unaffected by the 56 additional dissipation mechanisms introduced in tough hydrogels (20, 21)...
The present disclosure relates to triblock and pentablock copolymers and methods of making thereof. Aspects of the disclosure further relate to block copolymer hydrogels that exhibit both fatigue resistance and fracture resistance with superior rates of recovery. 机译:本公开涉及三嵌段和五嵌段和五嵌段...
Owing to their excellent biocompatibility and capability of large deformation, hydrogels have attracted extensive attention for promising applications. Whe
11 Evidence has accumulated recently that synthetic hydrogels, unlike biological tissues, are susceptible to fatigue fracture.3 It is likely that biological tissues achieve fatigue resistance through heterogeneous structures with strong adhesion between materials.12 Transformative advances have been made ...
Delayed fractureFatigue fracturePolyacrylamideRapid advances are taking place to develop hydrogels of high stretchability and toughness, but fatigue fracture has not been studied for any hydrogels. This negligence hinders the development of hydrogels and their applications. Here we initiate a study of ...
Fracture Toughness and Fatigue Threshold of Tough Hydrogelsdoi:10.1021/acsmacrolett.8b00788Wenlei ZhangJian HuJingda TangZhongtong WangJikun WangTongqing LuZhigang SuoAmerican Chemical Society
(a) Nominal strength smax, (b) stretch at rupture λmax, (c) true strength σmax, and (d) work of fracture Wf are plotted as functions of F with lines of constant C. All properties are measured at the point of rupture in the monotonic stress-stretch curves. smax increases with increa...