I-Ammonium polyphosphate (APP) iyinhlanganisela esetshenziswa kabanzi engaphili, eyaziwa kakhulu ngendima yayo njengesivimbeli somlilo kanye nomanyolo. Izakhiwo zayo ezihlukile ziyenza ibe yingxenye ebalulekile ekusetshenzisweni okuhlukahlukene, okuhlanganisa amapulasitiki, izindwangu, kanye nokugqoka. Ukuqonda ukuzinza kokushisa kwe-ammonium polyphosphate kubalulekile ekusetshenzisweni kwayo ngempumelelo, ikakhulukazi ezindaweni ezishisa kakhulu.
Ukuwohloka kwe-ammonium polyphosphate kuvame ukuqala emazingeni okushisa aphezulu, ngokuvamile azungeze ama-degree Celsius angu-200 kuya kwangu-300 (392 kuya ku-572 degrees Fahrenheit). Kula mazinga okushisa, inhlanganisela idlula ochungechungeni lwezinguquko zamakhemikhali ezingaholela ekukhululweni kwe-ammonia ne-phosphoric acid. Njengoba izinga lokushisa likhuphuka kakhulu, ikakhulukazi ngale kwama-degree Celsius angu-300, inqubo yokuwohloka iyashesha, okuholela ekuwohlokeni kwesakhiwo se-polymeric se-APP.
Ukuwohloka kokushisa kwe-ammonium polyphosphate kungathonywa izici eziningana, okuhlanganisa isisindo sayo sama-molecule, ukuba khona kwezithasiselo, kanye nokwakheka okuthile okusetshenzisiwe. Isibonelo, isisindo sama-molecule esiphansi i-APP sivame ukwehla emazingeni okushisa aphansi uma kuqhathaniswa nezinhlobo eziphakeme zesisindo sama-molecule. Ngaphezu kwalokho, ukuba khona kwezinye izinto ekwakhiweni okuhlanganisiwe kungathuthukisa noma kuvimbele inqubo yokuwohloka, kuye ngezakhiwo zazo zokushisa kanye nokusebenzisana ne-APP.
Esinye sezici ezibalulekile zokuziphatha kokushisa kwe-ammonium polyphosphate yindima yayo njengesivimbeli somlilo. Uma ivezwa ekushiseni, i-APP ingakhipha amagesi angashi, anciphisa umusi ovuthayo futhi asize ekucindezeleni ukusha. Lesi sici sibaluleke kakhulu ekusetshenzisweni lapho ukuphepha komlilo kuyinkinga. Kodwa-ke, ukusebenza kahle kwe-APP njengesivimbeli somlilo kuhlobene kakhulu nokuqina kwayo kokushisa. Uma i-APP yonakala ngokushesha kakhulu, ingase inganikezi izinga lokuvikela elifunekayo.
Ngaphezu kwalokho, imikhiqizo yokuwohloka kwe-ammonium polyphosphate ingaba nemiphumela emvelweni nasempilweni yabantu. Ukukhishwa kwe-ammonia, isibonelo, kungaba nomthelela ekungcolisweni komoya futhi kungaba yingozi empilweni uma kuhogelwa ngobuningi obukhulu. Ngakho-ke, ukuqonda izinga lokushisa lokuwohloka kanye nokukhishwa kwamagesi okulandelayo kubalulekile ekuhloleni ukuphepha kanye nomthelela wemvelo wemikhiqizo equkethe i-APP.
Ekusetshenzisweni okungokoqobo, kubalulekile ukucabangela izimo zokusebenza kanye namathuba okuwohloka kokushisa lapho usebenzisa i-ammonium polyphosphate. Abakhiqizi bavame ukwenza ukuhlaziywa kokushisa, njengokuhlaziywa kwe-thermogravimetric (TGA), ukuze banqume amazinga okushisa athile okuwohloka kanye nokwenza ngcono ukwakheka ukuze kuzinzile futhi kusebenze kahle.
Ekuphetheni, i-ammonium polyphosphate iqala ukonakala emazingeni okushisa acishe abe ngu-200 kuya ku-300 degrees Celsius, kanye nokuwohloka okukhulu okwenzeka emazingeni okushisa aphezulu. Ukuqina kwayo kokushisa kuyisici esibalulekile ekusebenzeni kwayo njengesithiba somlilo kanye nokusetshenziswa kwayo konke ezinhlotsheni ezahlukene zokusebenza. Ukuqonda lezi zakhiwo zokushisa akusizi nje kuphela ekuthuthukisweni kwemikhiqizo ephephile nephumelelayo kodwa futhi kuqinisekisa ukuhambisana nemithethonqubo yemvelo kanye nempilo. Njengoba ucwaningo luqhubeka, ukuqonda okwengeziwe ngokuziphatha kokushisa kwe-ammonium polyphosphate kuzothuthukisa ukusetshenziswa kwayo kanye namaphrofayili okuphepha embonini.
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Uma udinga ukwazi ulwazi olwengeziwe, sicela usithinte.
Xhumana: uCherry He
Email: sales2@taifeng-fr.com
Isikhathi sokuthunyelwe: Okthoba-30-2024
