PTFE (polytetrafluoroethylene), aka polymer, feem ntau yog thawj qhov kev xaiv polymer rau hauv qab thiab diaphragms, tab sis koj puas paub tias PTFE tsis yog tib lub polymer uas koj tuaj yeem xaiv los ntawm?Hauv tsab xov xwm no peb yuav los sib piv ob lwm cov polymers - PFA thiab TFM - rau PTFE raws li cov khoom siv rau hauv qab thiab diaphragms.
PFA
PFA, lossis Perfluoroalkoxy, qee zaum hu ua polymer PFA.Nws muaj cov khoom uas zoo ib yam li PTFE, nrog rau cov tshuaj tiv thaiv zoo heev thiab muaj roj permeability tsawg heev.Nws tsis yog hydrophobic zoo li PTFE, txawm li cas los xij, thiab nqus dej me ntsis ntxiv.Ib qho laj thawj uas nws yuav raug xaiv dhau PTFE yog nws lub peev xwm los tswj nws lub zog txhua yam ntawm qhov kub thiab txias, txawm tias ua ke nrog cov tshuaj caustic.Nws kuj muaj ob qho tib si zoo heev creep, qaug zog zog thiab thermal stability.Nws qhov kev pabcuam txuas ntxiv siab tshaj plaws hauv qhov kub thiab txias yog 260 ° C.
PFA kuj muaj ntau yam ntxiv thaum nws los txog yuav ua li cas cov khoom tuaj yeem tsim tau;Piv txwv li, nws qiv nws tus kheej zoo rau extrusion, txhaj tshuaj molding, hloov molding, tshuab moulding, thiab compression molding.Feem ntau koj yuav pom PFA siv rau cov khoom siv yas yas vim nws cov tshuaj lom neeg tsis zoo, thiab nws qhov kev hloov pauv tau ua rau nws muaj kev xaiv nrov rau tubing hauv ntau daim ntawv thov tshuaj.Nws tseem nrov rau cov khoom siv semiconductor thiab kev siv tshuaj.
TFM
Tej zaum koj yuav tau hnov txog TFM, lossis PTFE-TFM.TFM yog PTFE tiam thib ob uas suav nrog kev hloov kho ntxiv hu ua Perfluoro (propyl vinyl ether).Qhov kev hloov kho no ua rau nws cov qauv polymer denser dua PTFE, txo nws cov pa permeability hauv qab ntawm PTFE tab sis tsis tsawg li PFA.Tib phab ntsa tuab ntawm TFM muaj ob zaug qhov cuam tshuam zoo li PTFE.Nws qhov nqus dej yog piv rau PTFE, uas yog qhov zoo heev.Zoo li PFA, nws ua tau zoo ntawm qhov kub thiab txias thiab muaj tshuaj lom neeg heev.TFM kuj tau txais txiaj ntsig zoo rau cov ntawv thov uas sib xyaw ua ke nrog cov tshuab nqus tsev siab.Zoo li PFA, nws ua haujlwm zoo rau kev siv tshuaj thiab semiconductor.
Piv rau PTFE, nws muaj cov yam ntxwv zoo dua ntawm qhov chaw, yog qhov tawv, thiab tsis tshua muaj kev nkag mus thiab muaj zog ua kom qaug zog.Muab piv rau PTFE, nws kuj pom zoo kom rov zoo dua kev ntxhov siab.Nws qhov siab tshaj plaws kev pabcuam kub kub yog 250 ° C, uas yog qis dua PFA me ntsis.
Polymer Options
Ob qho tib si ntawm cov kev xaiv polymer no yog cov kev xaiv zoo tshaj plaws rau kev siv siab purity, nrog rau kev kho mob, tshuaj, semiconductor bellows.Yog li, lwm zaus koj xaiv polymer bellows lossis diaphragm, tsis txhob hnov qab tias PTFE tsis yog koj cov khoom siv nkaus xwb.
Post lub sij hawm: Apr-11-2018