Ngexesha lendyikitya yokufa, ingxaki yamachaphaza amathe e-aerosolized kwiofisi yamazinyo ayinzima

Iipolymers zithintela inkungu enobungozi ngexesha lotyelelo lwamazinyo
Ngexesha lendyikitya yokufa, ingxaki yamachaphaza amathe e-aerosolized kwiofisi yamazinyo ayinzima
Kwiphepha elipapashwe kule veki kwiPhysics of Fluids, ngu-AIP Publishing, u-Alexander Yarin kunye noogxa bakhe bafumanise ukuba imikhosi yesixhobo esingcangcazelayo okanye ugqirha wamazinyo awadibani neempawu ze-viscoelastic zeepolymers zokutya, ezinjenge-polyacrylic acid, ethi basebenzise njengesihlanganisi esincinci emanzini kuseto lwamazinyo.

Iziphumo zabo zazimangalisa. Ayisiyiyo kuphela indibaniselwano encinci yeepolymers ephelise ngokupheleleyo i-aerosolization, kodwa ikwenze oko ngokulula, ibonisa ifiziksi esisiseko ye-polymer, enje ngotshintsho lwe-coil-stretch, olwenzile injongo entle.

Bavavanya iipolymer ezimbini ezivunyiweyo ze-FDA. I-Polyacrylic acid ibonakalise ukuba iyasebenza ngakumbi kune-xanthan gum, kuba ukongeza kwi-viscosity yayo ephezulu (uxinzelelo oluphezulu lokuzolula), ityhile i-shear viscosity esezantsi, eyenza ukumpompa kube lula.

"Into eyothusayo kukuba ulingo lokuqala kwelebhu yam yangqina ngokupheleleyo ingqikelelo," utshilo u-Yarin. “Kwakumangalisa ukuba ezi zinto zazinokukwazi ngokulula nangokucinezela ngokupheleleyo ukusebenzisa i-erosolization ngezixhobo zamazinyo, kubandakanyeke amandla amakhulu e-inertial. Nangona kunjalo, amandla e-elastiki aveliswa zizongezo ezincinane zepolymer ayesomelele ngakumbi. ”

Uphononongo lwabo lubonise ukuqhuma kobundlobongela beepokotho zamanzi ezibonelelwe ngamazinyo kunye neentsini ezithi isixhobo samazinyo sikhuphe umoya. Inkungu yokutshiza ehamba notyelelo kugqirha wamazinyo sisiphumo samanzi esidibana nokushukuma okukhawulezileyo kwesixhobo okanye amandla e-centrifugal e-drill, aqhekeza amanzi abe ngamathontsi amancinci kwaye ahambise oku.

Ukudityaniswa kwepolymer, xa kusetyenziswa ukunkcenkceshela, kucinezela ukuqhuma; Endaweni yoko, ii-macromolecule zepolymer ezolula njengeebhendi zerabha zithintela ukubonwa kwento ngamanzi. Xa incam yesixhobo esingcangcazelayo okanye isixhobo sokumba samazinyo singena kwisisombululo sepolymer, imisonto yesisombululo ibe yimicu efana nenyoka, ethi ibuyiselwe ngasemva kwincam yesixhobo, eguqula amandla esiqhelo abonwa ngamanzi acocekileyo kugqirha wamazinyo.

“Xa amathontsi ezama ukuzikhulula kulwelo olungamanzi, umsila wethontsi wolulwa. Kulapho amandla e-elastic abalulekileyo ahambelana notshintsho lwe-coil-stretch of polymer macromolecule aqala ukusebenza, ”utshilo u-Yarin. Bacinezela ubude bemisila kwaye batsalela i-droplet umva, kuthintela ngokupheleleyo i-aerosolization. ”

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Izinto ezinikezwe liziko laseMelika leFiziksi. Qaphela: Umxholo unokuhlelwa kwisitayile kunye nobude