Preparation and properties of polyacrylamide/cellulose nanocrystal/reduced graphene oxide interpenetrating network composite hydrogels

Meng, Lingling; Li, W.L.; Ding, Shi You; Liu, En; Li, Da

doi:10.1039/d3nj01777j

Cited by 3 publications

(1 citation statement)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The water retention properties of amide polymer contribute to maintaining water balance in the soil, enhancing the soil's water retention capacity 15 , 16 , and restricting soil cracking behavior; Its excellent mechanical properties enable it to withstand large loads and stresses 17 ; Its excellent elongation performance allows it to have a certain level of deformation capability under stress 18 , 19 , it can maintain relatively stable performance within a certain range of strain; Its elastic recovery performance enables it to quickly return to its original state after being subjected to stress 20 , 21 , reducing the displacement and deformation of the structure. Additionally, by adjusting its chemical structure or adding specific chemical substances 22 – 24 , the performance characteristics of amide polymer can be altered. This adjustability provides greater flexibility for engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of influence of amide polymer on loess for subgrade

Yue,

Zhang,

Zhang

et al. 2024

Sci Rep

View full text Add to dashboard Cite

The effects of moisture and drying shrinkage can lead to uneven settlement, cracking, and other diseases in loess subgrade. The objective of this study was to investigate the effects of amide polymer (AP) on the permeability, mechanical properties and crack resistance of loess by orthogonal experiments. The basic properties of AP and the permeability, mechanical properties, and dry–wet variation properties of polymer-modified loess were tested, and a scale model verification and simulation analysis were conducted. In this paper, water migration in subgrade is regulated by improving the water sensitivity of loess. By reducing the variation range of subgrade water content, the stress accumulation in subgrade caused by water is weakened. The results show that the curing time and mechanical properties of AP are directly affected by the oxidant and reducing agent, and the mechanical properties of AP are compatible with the characteristics of loess. AP filled the grain gap and reduced the permeability of loess by 34.05–280.83%. The ductility of polymer-modified loess is significantly increased, and the strain of peak strength is increased by 17.21–126.36%. AP can regulate moisture change, reduce the surface tension between particles, and reduce stress concentration. The strength loss rate was reduced by 19.98–51.21% by enhancing the cracking resistance and weakening the strength loss caused by dry and wet cycling. The increase of upper layer moisture content in the scale model of polymer-modified loess subgrade is reduced by 31.38–36.11%.

show abstract