I-ethylene oxide (EO) ibisetyenziswa ekubulaleni iintsholongwane nasekubulaleni iintsholongwane ixesha elide kwaye yeyona nto yodwa esetyenziswa ekubulaleni iintsholongwane ngegesi yekhemikhali eqatshelwe lihlabathi njengeyona inokuthenjwa. Ngaphambili,i-ethylene oxideyayisetyenziselwa ikakhulu ukubulala iintsholongwane kunye nokubulala iintsholongwane kwizinga lemizi-mveliso. Ngophuhliso lwetekhnoloji yanamhlanje yemizi-mveliso kunye noomatshini abazisebenzelayo kunye netekhnoloji ekrelekrele, itekhnoloji yokubulala iintsholongwane ye-ethylene oxide ingasetyenziswa ngokukhuselekileyo kwiindawo zonyango ukubulala iintsholongwane kwizixhobo zonyango ezichanekileyo ezoyika ubushushu kunye nokufuma.

Iimpawu ze-ethylene oxide

I-ethylene oxidesisizukulwana sesibini sezibulali-ntsholongwane zeekhemikhali emva kwe-formaldehyde. Isesesinye sezibulali-ntsholongwane ezibandayo ezilungileyo kwaye silungu elibalulekileyo kwiiteknoloji ezine eziphambili zokubulala iintsholongwane ezisebenzisa ubushushu obuphantsi.

I-ethylene oxide yikhompawundi elula ye-epoxy. Yigesi engenambala kubushushu begumbi kunye noxinzelelo. Inzima kunomoya kwaye inevumba elimnandi le-ether. I-ethylene oxide iyatsha kwaye iyaqhuma. Xa umoya unee-3% ukuya kuma-80%i-ethylene oxide, kwakheka igesi exutyiweyo eqhumayo, etshayo okanye iqhume xa ibekwe kumlilo ovulekileyo. Uxinzelelo lwe-ethylene oxide olusetyenziswa rhoqo ekubulaleni nasekubulaleni iintsholongwane yi-400 ukuya kwi-800 mg/L, olukwinqanaba loxinzelelo olunokutsha noluqhumayo emoyeni, ngoko ke kufuneka lusetyenziswe ngononophelo.

I-ethylene oxide ingaxutywa neegesi ezingasebenziyo ezifanaumoya omdakangomlinganiselo we-1:9 ukwenza umxube ongenakuqhushumba, okhuselekileyo ekubulaleni iintsholongwane nasekubulaleni iintsholongwane.I-ethylene oxideiyakwazi ukwenza i-polymerization, kodwa ngokubanzi i-polymerization ihamba kancinci kwaye ikakhulu iyenzeka kwimeko yolwelo. Kwimixube ye-ethylene oxide ene-carbon dioxide okanye ii-hydrocarbons ezine-fluorinated, i-polymerization iyenzeka kancinci kwaye ii-polymers eziqinileyo azinakwenzeka ukuba ziqhume.

Umgaqo wokucoca i-Ethylene Oxide

1. I-Alkylation

Indlela yokusebenza kwei-ethylene oxideEkubulaleni iintsholongwane ezahlukeneyo ikakhulu yi-alkylation. Iindawo zesenzo yi-sulfhydryl (-SH), i-amino (-NH2), i-hydroxyl (-COOH) kunye ne-hydroxyl (-OH) kwiimolekyuli zeproteni kunye ne-nucleic acid. I-ethylene oxide inokubangela ukuba la maqela enze ii-alkylation reactions, nto leyo eyenza ezi macromolecules zebhayoloji zeentsholongwane zingasebenzi, ngaloo ndlela zibulala iintsholongwane.

2. Nqanda umsebenzi wee-enzymes zebhayoloji

I-ethylene oxide inokuthintela umsebenzi wee-enzymes ezahlukeneyo zee-microorganisms, ezifana ne-phosphate dehydrogenase, i-cholinesterase kunye nezinye ii-oxidases, ithintela ukugqitywa kweenkqubo eziqhelekileyo ze-metabolic zee-microorganisms kwaye ikhokelela ekufeni kwazo.

3. Impembelelo yokubulala kwiintsholongwane

Zombinii-ethylene oxideulwelo kunye negesi zineziphumo ezinamandla zokubulala iintsholongwane. Xa kuthelekiswa, impembelelo yokubulala iintsholongwane yegesi inamandla ngakumbi, kwaye igesi yayo isetyenziswa ngokubanzi ekubulaleni iintsholongwane nasekubulaleni iintsholongwane.

I-ethylene oxide yi-sterilant esebenza kakhulu kwi-wide-spectrum sterilant enefuthe elinamandla lokubulala nokuvala i-bacterial propagation bodies, ii-bacterial spores, ii-fungi, kunye nee-virus. Xa i-ethylene oxide idibana nee-microorganisms, kodwa ii-microorganisms zinamanzi aneleyo, impendulo phakathi kwe-ethylene oxide kunye nee-microorganisms yindlela eqhelekileyo yokusabela. Idosi evala ii-microorganisms ezikhuliswe kakuhle, i-reaction curve ihambelana ngqo nexabiso le-semi-logarithmic.

Uluhlu lokusetyenziswa kokubulala iintsholongwane ze-ethylene oxide

I-ethylene oxideAyizitshabalalisi izinto ezicociweyo kwaye ingena ngamandla. Uninzi lwezinto ezingafanelekanga ukubulala iintsholongwane ngeendlela eziqhelekileyo zinokucocwa kwaye zicocwe nge-ethylene oxide. Ingasetyenziselwa ukubulala iintsholongwane kwiimveliso zesinyithi, ii-endoscopes, ii-dialyzers kunye nezixhobo zonyango ezilahlwayo, ukubulala iintsholongwane kwimizi-mveliso kunye nokubulala iintsholongwane kwiimpahla ezahlukeneyo, iimveliso zeplastiki, kunye nokubulala iintsholongwane kwiindawo ezithwaxwa zizifo ezisulelayo (ezifana neempahla zefayibha yamakhemikhali, isikhumba, iphepha, amaxwebhu, kunye nemifanekiso yeoyile).

I-ethylene oxide ayonakalisi izinto ezicociweyo kwaye ingena ngamandla. Uninzi lwezinto ezingafanelekanga ukubulala iintsholongwane ngeendlela eziqhelekileyo zinokucocwa kwaye zicocwe nge-ethylene oxide. Ingasetyenziselwa ukubulala iintsholongwane kwiimveliso zesinyithi, ii-endoscopes, ii-dialyzers kunye nezixhobo zonyango ezilahlwayo, ukubulala iintsholongwane kwimizi-mveliso kunye nokubulala iintsholongwane kwiimpahla ezahlukeneyo, iimveliso zeplastiki, kunye nokubulala iintsholongwane kwiindawo ezithwaxwa zizifo ezisulelayo (ezifana neempahla zefayibha yamakhemikhali, isikhumba, iphepha, amaxwebhu, kunye nemifanekiso yeoyile).

Izinto ezichaphazela isiphumo sokubulala iintsholongwanei-ethylene oxide

Isiphumo sokubulala iintsholongwane se-ethylene oxide sichaphazeleka zizinto ezininzi. Ukuze kufezekiswe isiphumo sokubulala iintsholongwane esingcono, kuphela ngokulawula ngempumelelo izinto ezahlukeneyo apho inokuthi idlale indima yayo ekubulaleni iintsholongwane kwaye ifezekise injongo yayo yokubulala iintsholongwane kunye nokubulala iintsholongwane. Izinto eziphambili ezichaphazela isiphumo sokubulala iintsholongwane zezi: uxinaniso, ubushushu, ukufuma okulinganiselweyo, ixesha lokusebenza, njl.