Qhov sib txawv tseem ceeb ntawm cov kua dej thixotropic thiab rheopectic yog tias hauv cov kua dej thixotropic, cov viscosity ntawm cov kua txo qis nrog kev ntxhov siab nyob rau lub sijhawm thaum, nyob rau hauv cov kua dej rheopectic, lub viscosity ntawm cov kua nce nrog kev ntxhov siab nyob rau lub sijhawm.
Cov kua dej yog cov kua lossis cov roj gaseous uas muaj viscosity. Peb tuaj yeem faib cov kua dej ua ob hom raws li viscosity li thixotropic thiab rheopectic kua. Txawm li cas los xij, ob qho no yog cov kua dej uas tsis yog Newtonian. Tsis tas li, cov no suav tias yog cov kua dej tsis tshua muaj.
Thixotropic Fluids yog dab tsi?
Thixotropic kua yog kua lossis roj uas nws viscosity txo qis thaum siv kev ntxhov siab nyob rau lub sijhawm paub. Yog li, nws tuaj yeem txhais tau tias yog lub sijhawm nyob ntawm tus cwj pwm pseudoplastic. Hauv qhov sib piv, tus cwj pwm ntawm cov kua dej rheopectic tuaj yeem piav qhia raws li lub sijhawm nyob ntawm tus cwj pwm dilatant. Cov kua dej no qhia txog tus cwj pwm uas tsis yog-linear stress-strain thiab. Yog li ntawd, qhov ntev ntawm cov kua mus nyob rau hauv shear stress, txo cov viscosity ntawm cov kua yuav ua. Hauv lwm lo lus, cov kua dej no siv qee lub sijhawm kom tau txais nws cov viscosity equilibrium thaum muaj kev hloov pauv ntawm tus nqi txiav tawm.
Qee yam piv txwv ntawm cov kua dej thixotropic suav nrog cytoplasm ntawm cov hlwb, cov kua dej synovial, qee hom zib ntab, qee hom av nplaum, cov nplaum nplaum hauv cov khoom siv hluav taws xob, xov-xauv kua, gelatin, xanthan gum, thiab lwm yam.
Cov kua dej Rheopectic yog dab tsi?
Rheopectic fluids yog cov kua los yog roj uas nws cov viscosity ntawm cov kua nce nrog kev ntxhov siab nyob rau lub sijhawm. Kev coj tus cwj pwm ntawm cov kua dej no tuaj yeem piav qhia raws li kev coj tus cwj pwm dilatant raws sijhawm. Yog li, cov kua dej no yog cov chav kawm tsawg ntawm cov kua dej uas tsis yog Newtonian. Tsis tas li ntawd, lawv qhia qhov nce viscosity thaum muaj kev ntxhov siab. Qhov ntawd txhais tau hais tias, thaum cov kua tau co, nws ua tuab, lossis nws tuaj yeem ua kom khov. Tsis tas li ntawd, siab dua shear stress, ntau viscous uas cov kua ua. Nws yog vim hais tias lub microstructure ntawm cov rheopectic kua yog tsim nyob rau hauv tas li shearing. Yog li ntawd, nws yog lub npe hu ua shear-induced crystallization. Qee qhov piv txwv ntawm cov kua dej rheopectic suav nrog qee cov gypsum pastes, tshuab luam ntawv number case, lubricants, thiab lwm yam.
Qhov txawv ntawm Thixotropic thiab Rheoptic Fluids yog dab tsi?
Cov kua dej yog cov kua lossis cov roj gaseous uas muaj viscosity. Peb tuaj yeem faib cov kua dej rau hauv ob hom raws li viscosity: thixotropic thiab rheopectic kua. Qhov sib txawv tseem ceeb ntawm thixotropic thiab rheopectic kua yog nyob rau hauv thixotropic kua, viscosity ntawm cov kua txo nrog kev ntxhov siab nyob rau hauv lub sij hawm, whereas, nyob rau hauv rheopectic kua, viscosity ntawm cov kua nce nrog kev ntxhov siab nyob rau hauv lub sij hawm.
Qee yam piv txwv rau cov kua dej thixotropic muaj xws li cytoplasm ntawm cov hlwb, cov kua dej synovial, qee hom zib ntab, qee hom av nplaum, solder pastes hauv electronics, xov-locking fluids, gelatin, xanthan gum, thiab lwm yam. Meanwhile, qee qhov piv txwv. rau rheopectic fluids muaj xws li ib co gypsum pastes, tshuab luam ntawv number case, lubricants, thiab lwm yam. Tsis tas li ntawd, tus cwj pwm ntawm thixotropic kua yuav piav raws li lub sij hawm-dependent pseudoplastic cwj pwm. Txawm li cas los xij, tus cwj pwm ntawm cov kua dej rheopectic tuaj yeem piav qhia raws li kev coj tus cwj pwm ntawm lub sijhawm.
Cov lus hauv qab no qhia txog qhov sib txawv ntawm thixotropic thiab rheopectic kua.
Summary – Thixotropic vs Rheopectic Fluids
Cov kua dej yog cov kua lossis cov roj gaseous uas muaj viscosity. Peb tuaj yeem faib cov kua dej ua ob hom raws li viscosity li thixotropic thiab rheopectic kua. Qhov sib txawv tseem ceeb ntawm thixotropic thiab rheopectic kua yog nyob rau hauv thixotropic kua, viscosity ntawm cov kua txo nrog kev ntxhov siab thaum lub sij hawm, whereas, nyob rau hauv rheopectic kua, lub viscosity ntawm cov kua nce nrog kev ntxhov siab nyob rau hauv lub sij hawm.
