Poly (terefegitire ya Ethylene) (PET)ni ibikoresho byo gupakira bisanzwe bikoreshwa ninganda zibiribwa n'ibinyobwa; kubwibyo, ituze ryumuriro ryakozwe nabashakashatsi benshi. Bumwe muri ubwo bushakashatsi bwibanze ku kubyara acetaldehyde (AA). Kubaho kwa AA mu ngingo za PET birahangayikishije kuko bifite aho bitetse cyangwa munsi yubushyuhe bwicyumba (21_C). Ihindagurika ry'ubushyuhe buke rizemerera gukwirakwira muri PET haba mu kirere cyangwa ibicuruzwa byose biri muri kontineri. Gukwirakwiza AA mubicuruzwa byinshi bigomba kugabanywa, kubera ko uburyohe / impumuro ya AA bizwiho kugira ingaruka kuburyohe bwibinyobwa bipfunyitse hamwe nibiribwa. Hariho uburyo bwinshi bwatangajwe bwo kugabanya ingano ya AA yakozwe mugihe cyo gushonga no gutunganya PET. Uburyo bumwe ni ugutezimbere uburyo bwo gutunganya ibikoresho bya PET bikorerwa. Izi mpinduka, zirimo gushonga ubushyuhe, igihe cyo gutura, nigipimo cyogosha, byagaragaye ko bigira ingaruka zikomeye kubisekuru bya AA. Uburyo bwa kabiri ni ugukoresha ibisigazwa bya PET byashizweho kugirango bigabanye kubyara AA mugihe cyo gukora kontineri. Ibisigarira bizwi cyane nka '' urwego rwamazi PET resin ''. Uburyo bwa gatatu ni ugukoresha inyongeramusaruro zizwi nka acetaldehyde scavenging agents.

AA scavengers yagenewe gukorana na AA iyariyo yose ikorwa mugihe cyo gutunganya PET. Aba scavengers ntibagabanya kwangirika kwa PET cyangwa acetaldehyde. Barashobora; icyakora, gabanya ingano ya AA ishoboye gukwirakwira muri kontineri bityo ugabanye ingaruka zose kubintu byapakiwe. Imikoranire yibikoresho byo gusya hamwe na AA byashyizweho kugirango bibeho ukurikije uburyo butatu butandukanye, bitewe nuburyo bwa molekile yimiterere yihariye. Ubwoko bwa mbere bwo gushakisha ni reaction ya chimique. Muri iki gihe, AA hamwe nu mukozi wo guswera bigira icyo bakora kugirango bahuze imiti, barema byibuze ibicuruzwa bishya. Mu bwoko bwa kabiri bwo guswera uburyo bwo gushiramo ibintu. Ibi bibaho mugihe AA yinjiye mu cyuho cyimbere cyumuti wo guswera kandi igafatirwa mu mwanya wa hydrogène, bikavamo urusobekerane rwa molekile ebyiri zitandukanye zahujwe hakoreshejwe imiti ya kabiri y’imiti. Ubwoko bwa gatatu bwuburyo bwo gushakisha burimo guhindura AA mu yandi moko y’imiti binyuze mu mikoranire yayo na catalizator. Guhindura AA mumiti itandukanye, nka acide acike, irashobora kongera aho abimukira batekera bityo bikagabanya ubushobozi bwayo bwo guhindura uburyohe bwibiryo cyangwa ibinyobwa bipfunyitse