I-Hydroxypropyl Methylcellulose njengezinto ezihlukanisayo, imikhiqizo etholakele inezinhlayiya ezihlelekile nezikhululekile, ubuningi obubonakalayo obufanele kanye nokusebenza okuhle kakhulu kokucubungula. Kodwa-ke, ukusetshenziswa kwe-Hydroxypropyl Methylcellulose kukodwa kungasiza ekuguqukeni okuhle kwe-resin. Ukusebenza okuphelele kwe-resin kubi. Ukusetshenziswa kwe-hydroxypropyl methylcellulose kanye nezinga elihlukahlukene le-alcohol ye-polyvinyl alcohol kungenza ukusebenza kwemikhiqizo kube ngcono, ikhwalithi ibe lula ukuyilawula futhi ngesikhathi esifanayo kunganciphisa izindleko. I-ejenti yokuhlakaza iyisici esiyinhloko esithonya ukuma kwezinhlayiya ze-resin ye-polyvinyl chloride. Uma ukucindezelwa kobuso besisombululo samanzi sama-ejenti okuhlakaza ajwayelekile kanye nokucindezelwa kwe-interfacial nge-Vinyl chloride monomer kuncane, kulapho amaconsi e-VCM angahlakazeka khona. Ngakho-ke ububanzi bezinhlayiya ze-resin ye-PVC buzoba buncane. Lapho ikhono lokuvikela le-ejenti yokuhlakaza liqina, kulapho izinhlayiya ze-resin ye-PVC ezitholiwe zizoba ziseduze futhi kuzoba nezimbobo ezincane. Futhi ukuhlangana kwe-granular nakho kunzima kakhulu, ngakho-ke kulula ukwakha ama-resin.
Isibonelo, ohlelweni lokusabalala kwe-PVA kanye ne-HPC oluhlanganisiwe, lapho izinga le-alcoholization le-PVA liphakeme, kulapho ukucindezeleka kobuso besisombululo samanzi kuzoba kukhulu futhi ikhono lokuvikela lizoba namandla, kuyilapho ukuhlushwa okuthile kwe-hydroxypropyl methylcellulose kunomphumela omuhle wokuhlakazeka. Ngakho-ke, ukusebenzisa i-PVA enezinga eliphezulu le-alcoholization njengento eyinhloko.
i-ejenti yokuhlakaza, kanye nokuhlanganisa
inani elithile le-hydroxypropyl methylcellulose
njenge-ejenti yokuhlakaza yokumiswa kwe-polymerization, kulula ukulungiselela i-resin ye-PVA engahlangabezana nezidingo zesimo sezinhlayiya. Isibonelo, ohlelweni lokuhlakazwa kwe-PVA ne-HPC, lapho izinga le-alcoholization le-PVA liphakeme, kulapho ukucindezeleka kobuso besisombululo samanzi kuzoba kukhulu futhi ikhono lokuvikela lizoba namandla, kuyilapho ukuhlushwa okuthile kwe-hydroxypropyl methylcellulose kunomphumela omuhle wokuhlakaza.
Isikhathi sokuthunyelwe: Mashi-17-2022