Ethylene oxide (EO) tau siv rau hauv kev tua kab mob thiab kev ua kom tsis muaj menyuam tau ntev lawm thiab yog tib lub tshuaj siv roj sterilant uas lub ntiaj teb lees paub tias yog qhov txhim khu kev qha tshaj plaws. Yav dhau los,ethylene oxidefeem ntau yog siv rau kev tua kab mob thiab ua kom tsis muaj menyuam hauv kev lag luam. Nrog rau kev txhim kho ntawm cov thev naus laus zis niaj hnub thiab kev siv tshuab thiab thev naus laus zis ntse, ethylene oxide sterilization technology tuaj yeem siv tau zoo hauv cov tsev kho mob kom tua cov khoom siv kho mob uas ntshai cua sov thiab dej noo.

Cov yam ntxwv ntawm ethylene oxide

Ethylene oxideyog tiam thib ob ntawm cov tshuaj tua kab mob tom qab formaldehyde. Nws tseem yog ib qho ntawm cov tshuaj tua kab mob txias zoo tshaj plaws thiab yog tus tswv cuab tseem ceeb tshaj plaws ntawm plaub lub tshuab tua kab mob kub qis.

Ethylene oxide yog ib qho tshuaj epoxy yooj yim. Nws yog ib qho roj tsis muaj xim ntawm chav tsev kub thiab siab. Nws hnyav dua li huab cua thiab muaj ntxhiab tsw ntawm ether. Ethylene oxide yog flammable thiab tawg. Thaum huab cua muaj 3% txog 80%ethylene oxide, cov pa roj sib xyaw ua ke tau tsim, uas kub hnyiab lossis tawg thaum raug rau cov nplaim taws qhib. Qhov concentration ntawm ethylene oxide uas siv ntau rau kev tua kab mob thiab kev ua kom tsis muaj menyuam yog 400 txog 800 mg / L, uas yog nyob rau hauv qhov ntau ntawm cov hluav taws kub thiab tawg hauv huab cua, yog li nws yuav tsum tau siv nrog kev ceev faj.

Ethylene oxide tuaj yeem sib xyaw nrog cov pa roj inert xws licov pa roj carbon dioxidenyob rau hauv ib qho piv ntawm 1: 9 los tsim ib qho sib tov tawg-pov thawj, uas yog qhov zoo dua rau kev tua kab mob thiab ua kom tsis muaj menyuam.Ethylene oxidetuaj yeem polymerize, tab sis feem ntau qhov polymerization qeeb thiab feem ntau tshwm sim hauv cov kua. Hauv kev sib xyaw ntawm ethylene oxide nrog carbon dioxide lossis fluorinated hydrocarbons, polymerization tshwm sim qeeb dua thiab cov polymers khov kho tsis tshua muaj peev xwm tawg.

Lub Ntsiab Cai ntawm Ethylene Oxide Sterilization

1. Kev sib xyaw ua ke ntawm cov tshuaj Alkylation

Lub mechanism ntawm kev ua haujlwm ntawmethylene oxideHauv kev tua ntau yam kab mob me me feem ntau yog alkylation. Cov chaw ua haujlwm yog sulfhydryl (-SH), amino (-NH2), hydroxyl (-COOH) thiab hydroxyl (-OH) hauv cov protein thiab nucleic acid molecules. Ethylene oxide tuaj yeem ua rau cov pab pawg no dhau los ua alkylation reactions, ua rau cov macromolecules ntawm cov kab mob me me no tsis ua haujlwm, yog li tua cov kab mob me me.

2. Tiv thaiv cov haujlwm ntawm cov enzymes biological

Ethylene oxide tuaj yeem tiv thaiv kev ua haujlwm ntawm ntau yam enzymes ntawm cov kab mob me me, xws li phosphate dehydrogenase, cholinesterase thiab lwm yam oxidases, cuam tshuam kev ua tiav ntawm cov txheej txheem metabolic ib txwm ntawm cov kab mob me me thiab ua rau lawv tuag.

3. Tua cov nyhuv rau cov kab mob me me

Ob leegethylene oxidekua thiab roj muaj cov teebmeem microbicidal muaj zog. Piv rau qhov ntawd, cov teebmeem microbicidal ntawm roj muaj zog dua, thiab nws cov roj feem ntau yog siv rau kev tua kab mob thiab kev ua kom tsis muaj menyuam.

Ethylene oxide yog ib yam tshuaj tua kab mob dav dav uas muaj zog heev uas tua tau thiab tsis ua haujlwm rau cov kab mob sib kis, cov noob kab mob, cov kab mob fungi, thiab cov kab mob. Thaum ethylene oxide kov cov kab mob me me, tab sis cov kab mob me me muaj dej txaus, qhov kev sib xyaw ntawm ethylene oxide thiab cov kab mob me me yog qhov kev sib xyaw ua ntej. Cov koob tshuaj uas ua rau cov kab mob me me uas tau cog qoob loo tsis ua haujlwm, qhov nkhaus sib xyaw yog ib txoj kab ncaj nraim ntawm tus nqi semi-logarithmic.

Daim ntawv thov ntau yam ntawm ethylene oxide sterilization

Ethylene oxidetsis ua puas rau cov khoom uas tau ntxuav kom huv thiab muaj zog nkag mus. Feem ntau cov khoom uas tsis haum rau kev ntxuav kom huv los ntawm cov txheej txheem dav dav tuaj yeem ntxuav thiab ntxuav nrog ethylene oxide. Nws tuaj yeem siv rau kev ntxuav cov khoom hlau, endoscopes, dialyzers thiab cov khoom siv kho mob pov tseg, kev ntxuav thiab ntxuav cov ntaub ntawm kev lag luam, cov khoom yas, thiab kev ntxuav cov khoom hauv thaj chaw muaj kab mob sib kis (xws li cov ntaub tshuaj fiber, tawv, ntawv, cov ntaub ntawv, thiab cov duab pleev xim roj).

Ethylene oxide tsis ua rau cov khoom uas tau ntxuav kom huv thiab muaj zog nkag mus. Feem ntau cov khoom uas tsis haum rau kev ntxuav kom huv los ntawm cov txheej txheem dav dav tuaj yeem ntxuav thiab ntxuav nrog ethylene oxide. Nws tuaj yeem siv rau kev ntxuav cov khoom hlau, endoscopes, dialyzers thiab cov khoom siv kho mob pov tseg, kev ntxuav thiab ntxuav cov ntaub ntawm kev lag luam, cov khoom yas, thiab kev ntxuav cov khoom hauv thaj chaw muaj kab mob sib kis (xws li cov ntaub tshuaj fiber, tawv, ntawv, cov ntaub ntawv, thiab cov duab roj).

Cov yam tseem ceeb uas cuam tshuam rau qhov ua rau kom tsis muaj menyuam ntawmethylene oxide

Qhov ua rau ethylene oxide tsis muaj kab mob yog cuam tshuam los ntawm ntau yam. Yuav kom ua tiav qhov ua rau tsis muaj kab mob zoo tshaj plaws, tsuas yog los ntawm kev tswj hwm ntau yam kom zoo nws thiaj li ua tau zoo tshaj plaws hauv kev tua cov kab mob me me thiab ua tiav nws lub hom phiaj ntawm kev tua kab mob thiab kev ua kom tsis muaj kab mob. Cov yam tseem ceeb uas cuam tshuam rau qhov ua rau tsis muaj kab mob yog: kev sib xyaw, qhov kub thiab txias, qhov av noo, lub sijhawm ua haujlwm, thiab lwm yam.