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New Solvent-free Electrospinning And Electrospinning Are Used For Rapid Haze Removal

Posted on:2019-07-21Degree:MasterType:Thesis
Country:ChinaCandidate:B ZhangFull Text:PDF
GTID:2431330566490046Subject:Physics
Abstract/Summary:PDF Full Text Request
Nanofibers have the advantages of high specific surface area,high aspect ratio,etc.,showing extraordinary physical and chemical properties,and have been widely studied.Electrospinning is a simple,low-cost device that can produce nanofibers on a large scale and is widely used.In recent years,the problem of environmental protection has been prominent.Xi Jinping proposed that we should not only green but also Jinshan Yinshan.It would rather be green and green,not Jinshan Yinshan,and green mountains are Jinshan Yinshan.At present,many scholars are committed to the cause of environmental protection and make contributions to green mountains and green hills.Nanofibers prepared by electrospinning show great advantages in removing PM2.5 from the air.Nanofiber membranes can efficiently filter PM2.5 dust in the air.For example,nano fiber anti-twist screens commonly used in the market today,and nano fiber membranes are used in filtering PM2.5 dust,which is a passive method of removing dust.Screens provide a fresh and comfortable working environment for the interior,but it does not fundamentally remove the environment.How to fundamentally manage smog is a top priority for environmental protection.In dust-producing chimneys,static electricity is used to remove helium,and high-voltage electricity makes dust condense and drop.From this we have been inspired to combine electro-static dust removal and efficient dust removal of nanofiber membranes.We inject electrospinning in-situ into dusty spaces.We found that this method can effectively remove dust from the space,and the effect is better than pure electrostatic dust removal or nanofiber membrane filtration.We believe that this result should be the result of the electrostatic dust dedusting and nanofiber dedusting.When it comes to managing environmental issues,it is also crucial that the governance approach adopted is not environmental protection.For the traditional electrospinning technology,it is often accompanied by the volatilization of a large amount of organic solvents.These solvents seriously pollute the environment and cause various degrees of harm to human health.Since the effect of in situ electrospinning and spinning is significant,we should summarize which of the electrospinning technologies are solvent-free.In other words,only the new solventless electrospinning technology can make a contribution to environmental protection..Therefore,finally we summarized the development of new solventless electrospinning in recent years.
Keywords/Search Tags:Electrospinning, Remove haze, Solventless electrospinning
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