I-Cellulose yokwakha iyisengezo esisetshenziswa kakhulu ekukhiqizeni ukwakhiwa. I-Cellulose yokwakha isetshenziswa ikakhulukazi ku-powder mortar omile. Ukwengezwa kwe-cellulose ether kuphansi kakhulu, kodwa kungathuthukisa kakhulu ukusebenza kodaka olumanzi futhi kuthinte ukwakhiwa kodaka. Ukusebenza kufanele kunakwe lapho kusetshenziswa. Ngakho-ke yiziphi izinto ezibonakalayo ze-cellulose zokwakha, futhi iyini inqubo yokwakha i-cellulose yokwakha? Uma ungazi okuningi mayelana nezakhiwo kanye nenqubo yokwakha ye-cellulose yokwakha, ake sibheke ndawonye.
Yiziphi izakhiwo ezibonakalayo ze-cellulose zokwakha:
1. Ukubukeka: impushana emhlophe noma emhlophe.
2. Usayizi wezinhlayiya; izinga lokuphasa lika-100 mesh likhulu kuno-98.5%; izinga lokuphasa lika-80 mesh likhulu kuno-100%.
3. Izinga lokushisa le-Carbonization: 280-300°C
4. Ukuminyana okubonakalayo: 0.25-0.70/cm3 (imvamisa cishe ku-0.5g/cm3), amandla adonsela phansi athile 1.26-1.31.
5. Izinga lokushisa lokushintsha umbala: 190-200°C
6. Ukushuba kobuso: Isixazululo esingu-2% samanzi ngu-42-56dyn/cm.
7. Incibilika emanzini nakwezinye izincibilikisi, njengengxenye efanele ye-ethanol/amanzi, i-propanol/amanzi, i-trichloroethane, njll. Izixazululo ezinamanzi ziyasebenza phezulu. Ukucaca okuphezulu, ukusebenza okuzinzile, ukucaciswa okuhlukile kwemikhiqizo kunamazinga okushisa ejeli ahlukene, izinguquko zokuncibilika nge-viscosity, i-viscosity ephansi, ukuncibilika okukhulu, ukucaciswa okuhlukile kwe-HPMC kunomehluko othile ekusebenzeni, futhi ukuchithwa kwe-HPMC emanzini akuthintwa. ngenani le-pH.
8. Ngokuncipha kokuqukethwe kwe-methoxyl, iphuzu lejeli liyakhula, ukuncibilika kwamanzi kwe-HPMC kuncipha, nomsebenzi ongaphezulu nawo uyancipha.
9. I-HPMC iphinde ibe nezici zekhono lokuqina, ukumelana nosawoti, impushana ephansi yomlotha, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, impahla enhle kakhulu yokwenza ifilimu, kanye nohlu olubanzi lokuphikiswa kwe-enzyme, i-dispersibility kanye nokuhlangana.
Iyini inqubo yokwakha i-cellulose yokwakha:
1. Izidingo zeleveli eyisisekelo: Uma ukunamathela kodonga lwezinga lesisekelo kungakwazi ukuhlangabezana nezidingo, indawo engaphandle yodonga lwezinga eliphansi kufanele ihlanzwe kahle, futhi kufanele kusetshenziswe i-ejenti yesixhumi esibonakalayo ukuze kwandiswe umthamo wokugcina amanzi udonga futhi ngaleyo ndlela uthuthukise amandla okubopha phakathi kodonga kanye nebhodi le-polystyrene.
2. Ulayini wokulawula wokudlala: veza imigqa yokulawula evundlile neqondile yeminyango namafasitela angaphandle, amalunga okunweba, amalunga okuhlobisa, njll. odongeni.
3. Lengisa ulayini wereferensi: Lengisa izintambo zensimbi eziqondile eziqondile emakhoneni amakhulu (emakhoneni angaphandle, amakhona angaphakathi) ezindonga zangaphandle zesakhiwo nezinye izindawo ezidingekayo, bese ulenga imigqa evundlile ezindaweni ezifanele esitezi ngasinye ukuze ulawule ukuma nokucaba kwesakhiwo. ibhodi le-polystyrene.
4. Ukulungiswa kwe-polymer adhesive mortar: Le nto iyisimende esinamathelisi se-polymer esilungisiwe, okufanele sisetshenziswe ngokuvumelana nezidingo zalo mkhiqizo, ngaphandle kokwengeza noma yiziphi ezinye izinto, ezifana nosimende, isihlabathi kanye namanye ama-polymers.
5. Namathisela indwangu yegridi egingqikile: Zonke izindawo eziveziwe ohlangothini lwebhodi le-polystyrene elinamathiselwe (njengamajoyinti anwebekayo, amalunga okuhlala kwesakhiwo, amalunga okushisa nezinye izinto zokuthunga ezinhlangothini zombili, iminyango namafasitela) kufanele ziphathwe ngendwangu yegridi. .
6. Ibhodi le-Adhesive polystyrene: Qaphela ukuthi ukusika ku-perpendicular ebusweni bebhodi. Ukuphambuka kosayizi kufanele kuhlangabezane nezidingo zemithethonqubo, futhi amalunga ebhodi le-polystyrene akufanele ashiywe emagumbini amane omnyango nefasitela.
7. Ukulungiswa kwamahange: inani lamahange lingaphezu kuka-2 ngemitha yesikwele (ikhuphuke ibe ngaphezu kuka-4 izakhiwo eziphakeme).
8. Lungiselela udaka lokuplasta: Lungiselela udaka lokuplasta ngokwesilinganiso esinikezwe umenzi, ukuze ufinyelele isilinganiso esinembile, ukunyakaziswa kwemishini kwesibili, ngisho nokuxutshwa.
Phakathi kwezinhlobo ze-cellulose ezisetshenziselwa ukwakha, i-cellulose ether esetshenziswa i-hydroxypropyl methylcellulose ku-powder mortar eyomile ngokuyinhloko i-hydroxypropyl methylcellulose ether. IHydroxypropyl methylcellulose ngokuyinhloko idlala indima yokugcina amanzi, ukujiya kanye nokwenza ngcono ukusebenza kokwakhiwa kodaka olomile lwempuphu.
Isikhathi sokuthumela: May-10-2023