I-Ethylene oxide (EO) isetyenziswe ekubulaleni iintsholongwane kunye nokuvala inzala ixesha elide kwaye kuphela kwekhemikhali yegesi ebulalayo ebonwa lihlabathi njengeyona ithembekileyo. Mandulo,ethylene oxideyayisetyenziselwa ikakhulu ukubulala iintsholongwane kwinqanaba lemizi-mveliso kunye nokuvala inzala. Ngophuhliso lwetekhnoloji yezobuchwephesha banamhlanje kunye ne-automation kunye netekhnoloji ekrelekrele, itekhnoloji ye-ethylene oxide sterilization ingasetyenziswa ngokukhuselekileyo kumaziko ezonyango ukwenza inzala yezixhobo zonyango ezichanekileyo ezoyika ubushushu kunye nokufuma.

Iimpawu ze-ethylene oxide

I-ethylene oxidesisizukulwana sesibini sezibulali-ntsholongwane zemichiza emva kwe-formaldehyde. Isesinye sezona zibulali ntsholongwane zibandayo kunye nelona lungu libalulekileyo kwiitekhnoloji ezine ezinkulu zobushushu obuphantsi bokuvala iintsholongwane.

I-ethylene oxide yinto elula ye-epoxy. Yigesi engenambala kubushushu begumbi kunye noxinzelelo. Inzima kunomoya kwaye inevumba elimnandi leether. I-ethylene oxide iyatsha kwaye iyaqhuma. Xa umoya une-3% ukuya kwi-80%ethylene oxide, igesi edibeneyo eqhumayo yenziwa, etshisa okanye iqhume xa ibonakaliswe kumadangatye avulekileyo. I-concentration ye-ethylene oxide esetyenziswa ngokuqhelekileyo kwi-disinfection kunye ne-sterilization yi-400 ukuya kwi-800 mg / L, ekuluhlu oluvuthayo kunye nokuqhuma kwe-concentration emoyeni, ngoko kufuneka isetyenziswe ngokuqaphela.

I-ethylene oxide inokuxutywa kunye neegesi ezingasebenziyo ezifanaumoya omdakakumlinganiselo we-1:9 ukwenza umxube ongenakudubula, okhuseleke ngakumbi ekubulaweni kweentsholongwane kunye nokuvala inzala.I-ethylene oxideiyakwazi ukwenza ipolymerize, kodwa jikelele upholimaniso lucotha kwaye lwenzeka ikakhulu kwimeko yolwelo. Kwimixube ye-ethylene oxide kunye nekharbon diokside okanye i-fluorinated hydrocarbons, i-polymerization yenzeke ngokucothayo kwaye iipholima eziqinileyo azinakwenzeka ukuba zigqabhuke.

Umgaqo-siseko we-Ethylene Oxide Sterilization

1. Alkylation

Indlela yokusebenza yeethylene oxideekubulaleni ezahlukeneyo microorganisms ikakhulu alkylation. Iziza zesenzo ziyi-sulfhydryl (-SH), i-amino (-NH2), i-hydroxyl (-COOH) kunye ne-hydroxyl (-OH) kwiiprotheni kunye ne-nucleic acid molecules. I-ethylene oxide inokubangela ukuba la maqela angene kwi-alkylation reactions, okwenza ezi macromolecules zebhayoloji ze-microorganisms zingasebenzi, ngaloo ndlela zibulala ii-microorganisms.

2. Ukuthintela umsebenzi wee-enzyme ze-biological

I-ethylene oxide inokuthintela umsebenzi wee-enzyme ezahlukeneyo ze-microorganisms, ezifana ne-phosphate dehydrogenase, i-cholinesterase kunye nezinye i-oxidase, zithintela ukugqitywa kweenkqubo eziqhelekileyo ze-metabolic ze-microorganisms kwaye zikhokelela ekufeni kwazo.

3. Ukubulala umphumo kwii-microorganisms

Zombiniethylene oxideulwelo kunye negesi zineziphumo ezinamandla ze-microbicidal. Xa kuthelekiswa, impembelelo ye-microbicidal yegesi yomelele, kwaye igesi yayo isetyenziswa ngokubanzi kwi-disinfection kunye nokuvalwa.

I-Ethylene oxide sisixhobo esinamandla esinamandla sokubulala kunye nesiphumo sokungasebenzi kwimizimba yosasazo lwebhaktiriya, intsholongwane yebhaktiriya, umngundo kunye neentsholongwane. Xa i-ethylene oxide idibana ne-microorganisms, kodwa i-microorganisms inamanzi aneleyo, ukusabela phakathi kwe-ethylene oxide kunye ne-microorganisms yinto eqhelekileyo yokusabela kokuqala. Idosi eyenza iimicroorganisms ezicocekileyo ezikhuliswe zisebenze, ijiko lokusabela ngumgca othe ngqo kwixabiso lesemi-logarithmic.

Uluhlu lwesicelo se-ethylene oxide sterilization

I-ethylene oxideayonakalisi izinto ezintsholongwane kwaye inokungena ngamandla. Uninzi lwezinto ezingafanelekanga ukuvala inzala ngeendlela eziqhelekileyo zinokubulawa iintsholongwane kwaye zicolwe nge-ethylene oxide. Ingasetyenziselwa ukwenza inzala yeemveliso zentsimbi, ii-endoscopes, ii-dialyzers kunye nezixhobo zonyango ezilahlwayo, ukubulawa kweentsholongwane kwimizi-mveliso kunye nokubulala iintsholongwane zamalaphu ahlukeneyo, iimveliso zeplastiki, kunye nokubulala iintsholongwane kwizinto kwiindawo zesifo esosulelayo (ezifana namalaphu ekhemikhali ifayibha, ufele, iphepha, amaxwebhu, kunye nemizobo yeoli).

I-ethylene oxide ayizonakalisi izinto ezintsholongwane kwaye inokungena okunamandla. Uninzi lwezinto ezingafanelekanga ukuvala inzala ngeendlela eziqhelekileyo zinokubulawa iintsholongwane kwaye zicolwe nge-ethylene oxide. Ingasetyenziselwa ukwenza inzala yeemveliso zentsimbi, ii-endoscopes, ii-dialyzers kunye nezixhobo zonyango ezilahlwayo, ukubulawa kweentsholongwane kwimizi-mveliso kunye nokubulala iintsholongwane zamalaphu ahlukeneyo, iimveliso zeplastiki, kunye nokubulala iintsholongwane kwizinto kwiindawo zesifo esosulelayo (ezifana namalaphu ekhemikhali ifayibha, ufele, iphepha, amaxwebhu, kunye nemizobo yeoli).

Izinto ezichaphazela isiphumo sokuvala inzalaethylene oxide

Impembelelo ye-sterilization ye-ethylene oxide ichaphazeleka kwizinto ezininzi. Ukuze kuphunyezwe eyona mpembelelo ilungileyo yokuvala inzala, kuphela ngokulawula ngempumelelo izinto ezahlukeneyo apho inokudlala indima yayo ekubulaleni iintsholongwane kwaye ifezekise injongo yayo yokubulala iintsholongwane kunye nokuvala inzala. Izinto eziphambili ezichaphazela umphumo wokuvala inzala zezi: ukugxininiswa, ubushushu, umswakama ohambelanayo, ixesha lesenzo, njl.