I-propylene oxide(PO) iwumsebenzi obalulekile ekukhiqizeni izinhlanganisela zamakhemikhali ezihlukahlukene. Uhlu olubanzi lwezicelo luhlanganisa ukukhiqizwa kwe-polyurethane, i-polyether, nezinye izimpahla ezisekelwe ku-polymer. Ngesidingo esikhulayo semikhiqizo esekwe ku-PO ezimbonini ezahlukahlukene njengokwakha, ezezimoto, ukupakisha kanye nefenisha, imakethe ye-PO kulindeleke ukuthi ikhule kakhulu eminyakeni ezayo.

Abashayeli Bokukhula Kwemakethe

Isidingo se-PO siqhutshwa ikakhulukazi izimboni ezithuthukayo zokwakha nezezimoto. Umkhakha wezokwakha okhula ngokushesha, ikakhulukazi emazweni asathuthuka kwezomnotho, ubangele ukwanda kwesidingo sezinto zokwakha ezisebenza kahle nezingabizi kakhulu. Amagwebu enziwe nge-PO-based polyurethane asetshenziswa kakhulu embonini yezokwakha ngenxa yokufakwa kwawo okuhle kakhulu kanye nezindawo ezikwazi ukumelana nomlilo.

Ngaphezu kwalokho, imboni yezimoto nayo ibe ngumshayeli omkhulu wemakethe ye-PO. Ukukhiqizwa kwezimoto kudinga inqwaba yezinto ezingamelana namazinga okushisa aphezulu kanye nezingcindezi zemishini. Ama-polymers asuselwa ku-PO ahlangabezana nalezi zidingo futhi asetshenziswa kakhulu ekukhiqizeni izingxenye zezimoto.

Izinselelo Zokukhula Kwemakethe

Ngaphandle kwamathuba amaningi okukhula, imakethe ye-PO ibhekene nezinselelo ezimbalwa. Enye yezinselelo eziyinhloko ukuntengantenga kwamanani ezinto ezibonakalayo. Izintengo zezinto zokusetshenziswa ezifana ne-propylene ne-oxygen, ezibalulekile ekukhiqizeni i-PO, zingaphansi kokuguquguquka okukhulu, okuholela ekungazinzini kwezindleko zokukhiqiza. Lokhu kungase kuthinte inzuzo yabakhiqizi be-PO futhi kube nomthelela ekhonweni labo lokuhlangabezana nesidingo esikhulayo.

Enye inselelo yimithetho eqinile yezemvelo ebekwe embonini yamakhemikhali. Ukukhiqizwa kwe-PO kukhiqiza imfucuza eyingozi kanye nokukhishwa kwegesi ebamba ukushisa, okuholele ekwandeni kokuhlolwa kanye nenhlawulo evela kuziphathimandla ezilawulayo. Ukuze bathobele le mithetho, abakhiqizi be-PO badinga ukutshala imali ekuphathweni kukadoti ebizayo kanye nobuchwepheshe bokulawula ukungcola, okungakhuphula izindleko zabo zokukhiqiza.

Amathuba Okukhula Kwemakethe

Naphezu kwezinselelo, kunamathuba amaningana okukhula kwemakethe ye-PO. Elinye lamathuba anjalo ukwanda kwesidingo sezinto zokufakelwa embonini yezokwakha. Njengoba umkhakha wezokwakha ukhula kwezomnotho osafufusa, isidingo sezinto zokufakelwa ezisebenza kahle kulindeleke ukuthi sikhuphuke. Amagwebu enziwe nge-PO-based polyurethane ahlinzeka ngezakhiwo eziyingqayizivele ezibenza bafanelekele uhla olubanzi lwezinhlelo zokusebenza zokufakelwa.

Elinye ithuba lisembonini yezimoto ethuthuka ngokushesha. Ngokugxila okwandayo ekukhanyeni kwemoto nokusebenza kahle kukaphethiloli, kunesidingo esikhulayo sezinto ezingasindi ezingamelana namazinga okushisa aphezulu kanye nezingcindezi zemishini. Ama-polymers asekelwe ku-PO ahlangabezana nalezi zidingo futhi angashintsha izinto zendabuko ezifana nengilazi nensimbi ekukhiqizeni izimoto.

Isiphetho

Umkhuba wemakethe we-propylene oxide muhle, uqhutshwa izimboni ezithuthukayo zokwakha nezezimoto. Kodwa-ke, ukuntengantenga kwamanani entengo yezinto ezingavuthiwe kanye nemithetho eqinile yezemvelo kubangela izinselelo ekukhuleni kwezimakethe. Ukuze basebenzise amathuba, abakhiqizi be-PO badinga ukuhlala behambisana namathrendi emakethe, batshale imali ocwaningweni nasekuthuthukisweni, futhi basebenzise izinqubo ezisimeme zokukhiqiza ukuze kuqinisekiswe ukukhiqizwa okungabizi kakhulu nokuhambisana nemvelo.