I-Maleic Anhydride: I-Organic Chemical Raw Material Eyinhloko Eqhuba Intuthuko Emikhakheni Eminingi
Izinkambu Ezinkulu Zokufaka Isicelo
Embonini yamakhemikhali, i-maleic anhydride iyinto ebalulekile yokukhiqiza ama-resin e-polyester angagcwalisiwe (i-UPR). Lawa ma-resin anezakhiwo ezinhle kakhulu zemishini, ukumelana namakhemikhali, kanye nokumelana nesimo sezulu futhi asetshenziswa kabanzi ekukhiqizweni kwepulasitiki eqinisiwe ngefayibha yengilazi (i-GFRP), njengezikebhe, izingxenye zezimoto, kanye nama-wind turbine blades. Ngaphezu kwalokho, i-maleic anhydride ingasetshenziswa ukukhiqiza ama-resin e-alkyd, anokukhanya okuhle nokuqina okuhle futhi asetshenziswa kabanzi embonini yokugqoka nokufaka i-inki.
Embonini yepulasitiki, i-anhydride yama-maleic isetshenziselwa ukukhiqiza amapulasitiki aguquliwe yi-anhydride yama-maleic. Ngokuhlanganisa ama-monomers ahlukene, i-anhydride yama-maleic ingathuthukisa izakhiwo zamapulasitiki, njengokwandisa ukumelana nokushisa kanye namandla omshini. Isibonelo, i-polystyrene ehlanganisiwe ye-anhydride yama-maleic, ehlanganiswe ne-styrene, inokumelana nokushisa okuhle kakhulu kanye nezakhiwo zomshini futhi isetshenziswa kabanzi embonini ye-elekthronikhi neyezimoto.
Embonini yerabha, i-anhydride yama-maleic isetshenziselwa ukukhiqiza izithasiselo zerabha. Ingasabela nerabha ukuze yakhe izakhiwo ezixhumene, ithuthukise ukumelana nokushisa kanye nokumelana nokuguguleka kwerabha. I-anhydride yama-maleic isetshenziselwa futhi ukukhiqiza ama-agent e-rubber vulcanizing kanye nama-agent alwa nokuguga, okwandisa impilo yenkonzo yemikhiqizo yerabha.
Ezimbonini zephunga nemithi, i-anhydride yama-maleic isetshenziswa njenge-intermediate ekuhlanganisweni kwezinto eziphilayo. Ingasetshenziswa ukuhlanganisa izinhlobo ezahlukene zamakhemikhali ephunga, njenge-diethyl maleate, esetshenziswa kabanzi kumakhambi nasezimonyweni. Ngaphezu kwalokho, i-anhydride yama-maleic ingasetshenziswa ukuhlanganisa ezinye izinto ezingaphakathi kwemithi, njengezinto ezivela ku-anhydride yama-maleic, ukuze kukhiqizwe ama-antibiotic nemithi yenhliziyo.
Ekuhlanzweni kwamanzi, i-maleic anhydride isetshenziselwa ukukhiqiza izinto zokwelapha amanzi. Ingasabela ngama-ion e-calcium ne-magnesium emanzini ukuze yakhe ama-precipitate angancibiliki, ngaleyo ndlela inciphise ubulukhuni bamanzi. I-maleic anhydride ingasetshenziswa futhi ukukhiqiza izinto zokuvimbela ukugqwala kanye nezithiyo zokukala ukuvimbela ukugqwala kanye nokukhula kwezicubu ezicutshini zamanzi.
Naphezu kokusetshenziswa kwayo okubanzi, i-maleic anhydride ine-asidi futhi iyagqwala, futhi ukusetshenziswa kwayo nokugcinwa kwayo kudinga izinyathelo zokuphepha eziqinile. I-Maleic anhydride imunca kalula umswakama ezindaweni ezinomswakama, ngakho-ke idinga ukugcinwa esitsheni esivaliwe. Ngaphezu kwalokho, izixazululo ze-maleic anhydride ziyagqwala kancane, futhi imishini yokuzivikela efanele kufanele igqokwe ngesikhathi sokusetshenziswa ukuze kugwenywe ukuthintana nesikhumba namehlo. Ekukhiqizweni kwezimboni, ukusetshenziswa kwe-maleic anhydride kuvame ukwenzeka ezinhlelweni ezivaliwe ukuze kuncishiswe umthelela emvelweni.
Imininingwane
| Igama Lomkhiqizo | I-Anhydride yamaMaleic | |||||||||
| Ifomula Yamakhemikhali | C4H2O3 | |||||||||
| Isisindo sama-molecule | 98.06 g/mol | |||||||||
| Ukubukeka | Ama-briquette amhlophe | |||||||||
| Indawo Yokuncibilika | 52.8°C | |||||||||
| Indawo Yokubilisa | 202°C | |||||||||
| Ubuningi | 1.48 g/cm³ | |||||||||
| INOMBOLO YE-CAS | 108-31-6 | |||||||||
| Ikhodi ye-HS | 2917140000 | |||||||||
| I-EINECS CHA | 203-571-6 | |||||||||
| Isicelo | Kusetshenziswa ku-resin ye-polyester engagcwele, izimbozo, izibulala-zinambuzane | |||||||||
Ishidi Lokulawula Ikhwalithi
| Igama Lomkhiqizo | I-Anhydride yamaMaleic | ||||||
| ITEM | INANI ELIJWAYELEKILE(%) | INANI LOKUHLOLA (%) | |||||
| Ukubukeka | Ama-briquette amhlophe | Ama-briquette amhlophe | |||||
| Ubumsulwa (ngu-MA) | 99.5WT%min | 99.72WT% | |||||
| Umbala Oncibilikisiwe | 25APHA Ubuningi | 15APHA | |||||
| Iphuzu Lokuqinisa | 52.5℃ Ubuncane | 52.6℃ | |||||
| Umlotha | 0.005WT% Ubuningi | ＜0.001WT% | |||||
| Insimbi | Ubuningi be-3PPM | 0.32PPM | |||||
Ngokufigqiwe
Ngamafuphi, i-anhydride yama-maleic, njengezinto ezibalulekile zamakhemikhali aphilayo, idlala indima ebalulekile ezimbonini eziningi. Ayigcini nje ngokuthuthukisa ukusebenza komkhiqizo kanye nekhwalithi kodwa futhi isekela intuthuko yemboni yesimanje. Ngokuthuthuka okuqhubekayo kwezobuchwepheshe, amathuba okusetshenziswa kwe-anhydride yama-maleic azoba maningi nakakhulu.