Ethylene oxide (EO) ayaa muddo dheer loo isticmaalay jeermi-dilista iyo jeermiska, waana nadiifinta gaaska kiimikada kaliya ee dunidu u aqoonsan tahay tan ugu kalsoonida badan. Waagii hore,ethylene oxidewaxaa inta badan loo isticmaali jiray jeermi-dilista heerka warshadaha iyo jeermiska. Horumarinta tignoolajiyada casriga ah ee warshadaha iyo automation-ka iyo tignoolajiyada caqliga leh, tignoolajiyada jeermiska ee ethylene oxide ayaa si badbaado leh loogu isticmaali karaa xarumaha caafimaadka si loo nadiifiyo aaladaha caafimaad ee saxda ah ee ka baqaya kulaylka iyo qoyaanka.

Astaamaha ethylene oxide

Ethylene oxidewaa jiilkii labaad ee jeermis-dileyaal kiimiko ah kadib formaldehyde. Wali waa mid ka mid ah jeermis-dileyaasha qabowga ugu wanaagsan iyo xubinta ugu muhiimsan ee afarta teknooloji ee kulaylka yar ee ugu waaweyn.

Ethylene oxide waa iskudhis epoxy fudud. Waa gaas aan midab lahayn marka la eego heerkulka qolka iyo cadaadiska. Way ka culus tahay hawada waxayna leedahay ur ether ah oo udgoon. Ethylene oxide waa guban kara waana qarxa. Marka hawadu ka kooban tahay 3% ilaa 80%ethylene oxide, waxaa samaysma gaas isku dhafan oo qarxa, kaas oo gubta ama qarxaya marka uu gaadho holac furan. Isku-duubnaanta ethylene oxide ee inta badan loo isticmaalo jeermiska jeermiska iyo jeermiska dila waa 400 ilaa 800 mg/L, taas oo ku jirta kala qaybsanaanta hawada gubanaysa iyo walxaha qarxa, markaa waa in si taxadar leh loo isticmaalo.

Ethylene oxide waxaa lagu qasi karaa gaas aan shaqaynayn sidacarbon dioxidesaamiga 1:9 si loo sameeyo isku-dhafka aan qarxin, kaas oo ka badbaado jeermi-dilista iyo jeermiska.Ethylene oxidepolymerize karaa, laakiin guud ahaan polymerization waa gaabis ah oo inta badan ku dhaca xaalad dareere ah. Isku dhafka ethylene oxide iyo karbon dioxide ama hydrocarbons fluorinated, polymerization waxay u dhacdaa si tartiib tartiib ah iyo polymers adag uma badna inay qarxaan.

Mabda'a jeermiska Ethylene Oxide

1. Alkylation

Habka ficilka eeethylene oxideDilaaga bakteeriyada kala duwan waxay u badan tahay alkylation. Goobaha ficilku waa sulfhydryl (-SH), amino (-NH2), hydroxyl (-COOH) iyo hydroxyl (-OH) ee borotiinka iyo molecules acid nucleic. Ethylene oxide waxay u horseedi kartaa kooxahan inay ku dhacaan falcelin alkylation ah, taasoo ka dhigaysa makromolecules bayooloji ee microorganisms kuwa aan shaqeynin, oo dila noolaha.

2. Jooji hawsha enzymes noolaha

Ethylene oxide waxay joojin kartaa dhaqdhaqaaqa enzymes kala duwan ee microorganisms, sida fosfate dehydrogenase, cholinesterase iyo oxidases kale, caqabad ku ah dhamaystirka hababka dheef-shiid kiimikaadka caadiga ah ee microorganisms oo keenaya dhimashadooda.

3. Saamaynta dilaaga ah ee noolaha

Labadabaethylene oxidedareeraha iyo gaaska waxay leeyihiin saameyn microbicidal xoog leh. Marka la barbardhigo, saameynta microbicidal ee gaaska waa ka xoog badan tahay, gaaskeedana waxaa guud ahaan loo isticmaalaa jeermiska iyo jeermiska.

Ethylene oxide waa sterilant ballaaran oo wax ku ool ah oo aad waxtar u leh oo leh dil xoog leh iyo saameyn la'aan ku yeelata bakteeriyada faafinta jirka, kudka bakteeriyada, fungi, iyo fayrasyada. Marka ethylene oxide uu la kulmo noolaha, laakiin microorganisms ka kooban biyo ku filan, falcelinta ka dhexeeya ethylene oxide iyo microorganisms waa falcelin caadi ah-dalabka hore. Qiyaasta kicinaysa nooleyaal dhaqan saafi ah, qalooca falcelinta waa xariiq toosan oo ku saabsan qiimaha semi-logarithmic.

Kala duwanaanshaha codsiga ee jeermiska ethylene oxide

Ethylene oxidema dhaawiciso shayada la jeermis-dilay waxayna leedahay dhexgalka xooggan. Inta badan walxaha aan ku habboonayn jeermis-diridda hababka guud waa la jeermi-tiray oo lagu jeermi karaa ethylene oxide. Waxaa loo isticmaali karaa jeermis-dillaaca alaabta birta ah, endoscopes, dialyzers iyo aaladaha caafimaadka ee la tuuri karo, jeermiska warshadaha iyo jeermiska disha ee kala duwan ee dharka, alaabta caaga ah, iyo jeermiska ee alaabta meelaha cudurada faafa (sida dharka fiber kiimikaad, maqaar, warqad, dukumentiyo, iyo rinjiyeynta saliid).

Ethylene oxide ma dhaawiciso shayada la jeermis-dilay waxayna leedahay dhexgalka xooggan. Inta badan walxaha aan ku habboonayn jeermis-diridda hababka guud waa la jeermi-tiray oo lagu jeermi karaa ethylene oxide. Waxaa loo isticmaali karaa jeermis-dillaaca alaabta birta ah, endoscopes, dialyzers iyo aaladaha caafimaadka ee la tuuri karo, jeermiska warshadaha iyo jeermiska disha ee kala duwan ee dharka, alaabta caaga ah, iyo jeermiska ee alaabta meelaha cudurada faafa (sida dharka fiber kiimikaad, maqaar, warqad, dukumentiyo, iyo rinjiyeynta saliid).

Waxyaabaha saameeya saamaynta jeermiskaethylene oxide

Saamaynta jeermiska ee ethylene oxide waxaa saameeya arrimo badan. Si loo gaaro saameynta ugu fiican ee jeermiska, kaliya iyadoo si wax ku ool ah loo xakameeyo arrimo kala duwan waxay si fiican u ciyaari kartaa doorkeeda dilka bakteeriyada waxayna gaari kartaa ujeeddadeeda jeermiska iyo jeermiska. Qodobbada ugu muhiimsan ee saameeya saameynta jeermiska waa: feejignaanta, heerkulka, qoyaanka qaraabada, waqtiga ficilka, iwm.