I-Cellulose acetate iyinto eguquguqukayo enezinhlobonhlobo zezicelo. Embonini kagwayi, i-cellulose acetate tow iwumkhiqizo oyinhloko wezihlungi zikagwayi ngenxa yokusebenza kwayo okuhle kakhulu kokuhlunga. Ibuye isetshenziswe embonini yefilimu nepulasitiki ekwenzeni amafilimu ezithombe, amafreyimu ezibuko, nezibambo zamathuluzi. Ngaphezu kwalokho, i-cellulose acetate isebenza njengezinto ezibalulekile zolwelwesi, okuhlanganisa ulwelwesi lokuhlunga kanye nezakhi ze-osmosis ezihlehlayo, ngenxa yokungena kwayo okuhle nokukhetha. Ngokuguquguquka kwayo kanye nokuvumelana nezimo, i-cellulose acetate iyaqhubeka nokubamba indima ebalulekile kukho kokubili ukukhiqizwa kwendabuko kanye nezinhlelo zokusebenza zesimanje zemvelo.
Inqubo Yokuhlunga I-Cellulose Acetate
1. Ukulungiselela Impahla Engavuthiwe & I-Acetylation
Inqubo iqala ngokuthiuginindela wokhunii-cellulose, ehlanjululwayo ukuze kukhishwe i-lignin, i-hemicellulose, nokunye ukungcola. I-cellulose ehlanjululwe bese isabela ngayoi-acetic acid, i-acetic anhydride, kanye ne-ai-catalystukukhiqiza i-cellulose acetate esters. Ngokulawula izinga lokushintsha, amamaki ahlukene afana ne-diacetate noma i-triacetate angatholakala.
2. Ukulungiselela Isixazululo Sokuhlanza Nokuphotha
Ngemuva kwe-acetylation, ingxube yokusabela iyancipha, futhi ama-byproducts ayasuswa. I-cellulose acetate iyagezwa, yomiswe, futhi incibilikiswe ngaphakathiIzingxube ze-acetone noma i-acetone-amanziukwakha isisombululo sokuphotha esilinganayo. Kulesi sigaba, isixazululo siyaqhubekaukuhlungaukuqeda izinhlayiya ezingancibilikisiwe nama-gel, ukuqinisekisa ukuvumelana nokuzinza.
3. I-Fiber Formation & Finishing
Isixazululo sokuphotha sicutshungulwa kusetshenziswa i-indlela yokuphotha eyomile, lapho ikhishwa khona ngama-spinnerets futhi iqiniswe ibe imicu njengoba i-solvent ihwamuka. Imicu iyaqoqwa, yelulwe, bese yenziwa ibe yintambo eqhubekayo noma intambo. Ukwelashwa kwangemuva okufana nokwelula, ukugoqa, noma ukuqeda kusetshenziswa ukuze kuthuthukiswe izakhiwo zefayibha, kuzenze zilungele ukusetshenziswaugwayiizihlungi, izindwangu, nemicu ekhethekile.
Iphepha Elihle Lokuhlunga Izindonga
Iphepha lokuhlunga le-SCY Series
Leli phepha lokuhlunga, elinokwakheka kwe-cellulose kanye ne-cationic resin, lisebenza kahle kakhulu ekuhlungeni izixazululo ze-cellulose acetate. Inikeza amandla aphezulu emishini, i-porosity ezinzile, nokususwa okunokwethenjelwa kokungcola. Okuqukethwe kwe-polyamide epoxy resin ephansi (<1.5%) kuqinisekisa ukuhambisana nokuphepha ekucutshungulweni kwe-cellulose acetate, okusiza ukususa izinhlayiya ezinhle, ama-gel, nokungcola okungancibiliki ngenkathi kugcinwa ukuzinza kwamakhemikhali nokuhambisana nezindinganiso zokuphepha zokudla kanye nemithi.
Izinzuzo
Ukusebenza kahle kokuhlunga- Isusa ngokuphumelelayo izinhlayiya ezinhle, ama-gel, nokungcola okungancibiliki kusuka kuzixazululo ze-cellulose acetate.
Amandla Mechanical Aqinile– Amandla okuqhuma ≥200 kPa aqinisekisa ukuqina nokusebenza okuzinzile ngaphansi kwengcindezi.
KuyavumelanaI-Porosity– Ukungena komoya okulawulwayo (25–35 L/㎡·s) kunikeza amanani okugeleza athembekile kanye nemiphumela yokuhlunga efanayo.
Isiphetho
I-Cellulose acetate iyinto ebalulekile esetshenziswa kuzihlungi, amafilimu, amapulasitiki, nolwelwesi, olwaziswa ngokusebenza kwayo kanye nokubola kwayo. Ngesikhathi sokukhiqiza, ukuhlunga okusebenzayo kubalulekile ukuze kuqinisekiswe ukuhlanzeka nokuvumelana.
I-Great Wall'sUchungechunge lwe-SCYisihlungiiphephailetha imiphumela evelele ngeukusebenza kahle kokuhlunga, ukuqina okuqinile, kanye ne-porosity ezinzile. Ngokuqukethwe kwe-resin ephansi ukuze kuhambisane kahle kakhulu, kuyisinqumo esithembekile sokucubungula i-cellulose acetate ezimbonini zokudla, ezemithi, namakhemikhali.
