Dissipative properties and chain evolution of highly strained nanocomposite hydrogel PROJECT TITLE :Dissipative properties and chain evolution of highly strained nanocomposite hydrogelABSTRACT:The dissipative property is crucial to the toughness and recovery of hydrogels. In our investigation, systematic uniaxial tension tests were conducted to judge the dissipative properties of poly (N-isopropylacrylamide) nanocomposite hydrogels. Two dissipative mechanisms are presented for each little and massive stretches. Before yielding, most dissipation results from the orientation of clay platelets along the tensile direction; when yielding, polymer chains peel aloof from clay platelets to induce hysteresis. For the primary time, a quadratic power law between the hysteresis work and the most stretch is obtained. The hysteresis work is irrelevant to the detailed loading history. When the hydrogel is unloaded to a crucial displacement, polymer chains will re-adsorb to the surfaces of clay platelets. The quantity of re-ruptured physical bonds is proportional to the merchandise of re-adsorption ratio which of initially ruptured bonds. These results may be useful for the toughening design of hydrogels. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Magnetic and structural properties of Ba(Co1−xMnx)O3 using synchrotron x-ray spectroscopy Field induced modification of defect complexes in magnesium-doped lithium niobate
