water-soluble cellulose ether is produced, and in which process the cellulose is reacted with a cross-linking agent which is polyfunctional towards cellulose in an alkaline reaction medium before, during, or after the etherification of the cellulose, the improvement comprising effecting the ...
Research on the Water Absorbing Character and Germination Conditions of Platycodon grandiflorum Seed 来自 Semantic Scholar 喜欢 0 阅读量: 16 作者:F Shi,W Wang 摘要: To find the best germination conditions of platycodon grandiflrum seed,different treatment ways of temperature,germination bed and ...
A water-absorbing resin has a polymer molecular chain in which 50 mol % or more of repeating units in the chain are carboxy group-containing units, wherein the carboxy group neutralization ratio in the central part of the resin is 60 mol % or more and the carboxy group neutralization ratio...
When the chemical potential (μ) of water vapor in the atmosphere is greater than that in a hygroscopic solution, i.e., μair > μsolution, the solution will continue absorbing water vapor and being diluted until the vapor-liquid equilibrium is reached at μair = μsolution33, ...
Microplastics (MPs) pollution has become a serious environmental issue of growing global concern due to the increasing plastic production and usage. Under climate warming, the cryosphere, defined as the part of Earth’s layer characterized by the low temperatures and the presence of frozen water, ...
The propagation of nonlinear water waves under complex wave conditions is the key issue of hydrodynamics both in coastal and ocean engineering, which is significant in the prediction of strongly nonlinear phenomena regarding wave–structure interactions. In the present study, the meshless generalized fini...
As the process of drying continued, at each drying temperature, periods of approximately 3 min were assigned for evaporating water in about 3 min intervals. The test was reproduced three times, and results showing an average decrease in weight were reported. Before any of the trials were ...
Trees reduce the impact of heavy rainfall by absorbing water that could otherwise cause flooding.If you are laying a new driveway, try using permeable paving. This allows water to seep into the ground when it rains, rather than running off the paving and straight down the drains....
This invention relates to a sheet-like structure of polyurethane, which is capable of absorbing water vapor and transmitting water vapor, with a uniformly incorporated additive composed of solid particles of at least one swellable, modified polymer. The invention also relates to a process for manufa...
Mud shale, used in drilling engineering, is prone to hydration and expansion, resulting in creep deformation that leads to wellbore shrinkage and pipe sticking incidents. Studying the creep characteristics of mud shale is significant for designing a reas