Ukuchithwa kwee-Selessese e Selese kunokuba yinkqubo entsonkothileyo ngenxa yesakhiwo sabo sekhemikhali kunye neepropathi. I-seluplose ebhaka ii-selsers zii-polymers ezinyibilikayo ezivela kwi-seluplose, i-polysacchacchacchaacchacchaacchaacchaacchaacchaacchaacchaacchaacchaacki efumaneka kwiindonga zeseli. Basetyenziswa ngokubanzi kumashishini ahlukeneyo njengamayeza, ukutya, izibalo, ukwakhiwa ngenxa yokuqulunqa ifilimu zabo, ukuqina, ukubopha, kunye nokuzinzisa iipropathi.
1. Ukuqonda Selese:
I-Selessulose eves igxothiwe i-sellyulose, apho amaqela e-hydroxyl ayithanga okanye ayithabathelwe ngokupheleleyo amaqela e-ether. Olona phawu luqhelekileyo lubandakanya i-methyl seluplose (MC), i-HydroxyPOpyl seluplose (HPC), i-HPC), i-HPC Uhlobo ngalunye lunepropathi eyahlukileyo ngokuxhomekeke kwinqanaba kunye nohlobo lokufaka endaweni.
I-2. IZINTO EBUCHULE UKUZALWA:
Izinto ezininzi zinefuthe kwi-smobabise ye-seluplose
Isidanga sokufakwa endaweni
Ubunzima bemolekyuli: Ubunzima obuphezulu be-moleculase i-ethes ifuna ixesha elingakumbi okanye amandla okuphekana.
IPropathi yeSolvent: Iinyibilikisi ezinamabala aphezulu kunye ne-hydrogen ye-hydrogen, njengamanzi oqingqiweyo kunye nePolar Shoils, zihlala zisebenza ngokubanzi ekuchitheni iisellulose.
Iqondo lokushisa
I-Agustion: Umatshini woMatshini unokunceda ukugqabhuka ngokwandisa unxibelelwano phakathi kwesinyibilikisi kunye ne-polymer.
I-PH: Kwezinye iiselwase e-TOSE TMC, i-PH inokuchaphazela kakhulu ulwelo ngenxa yamaqela awoxymethyl.
3. Izinyibilikiswa ze-Stocols:
Amanzi: Uninzi kakhulu baseSeleseulose esuka kunyibilika emanzini, esenza i-selvepvel yokuqala yezicelo ezininzi.
I-alcohols: i-ethanol, i-methanol, kunye ne-Iyopropanol zisetyenziswa ngokuqhelekileyo zokuphucula ukwahlulwa kwe-solubase yelesellulose eweni, ngakumbi abo bathobekileyo lwamanzi.
Izinyibilikisi ze-organic: dimthyl sulfoxide (DMSO), DMO), DMO
I-4. Iindlela zokuThintela ukuHanjiswa:
Ukuvuselela okulula: Kwizicelo ezininzi, ukuvuselela nje i-selsulose e-selsese kwi-Solvent efanelekileyo kubushushu obufanelekileyo kwanele ukutshitshiswa. Nangona kunjalo, amaqondo obushushu aphezulu kunye namaxesha amade ashukumisayo anokuba yimfuneko ukuze uchithise ngokupheleleyo.
Ukufudumeza: Ukufudumeza isinyibilikisi okanye umxube we-Solyremer-Polymer unokukhawulezisa ukutshabalalisa, ngakumbi kwi-molecrose ephezulu yemolekyuli okanye abo bathobekileyo.
Ukuphuculwa kwe-Ultrasonic Inzuzo yokwandisa ukuchithwa ngokwenza amaqamza e-caviting okhuthaza ukwahlukana kwePolymer kunye nokuphucula ukungena kwelesvent.
Ukusetyenziswa kwezisombululo ze-co-Solvants: Ukudibanisa amanzi ngotywala okanye ezinye izinyibilikisi zepolir kunokuphucula ukubenzela amandla, ngakumbi i-seluplose ebhaka ukungathobeli kwamanzi.
5. Ukuqwalaselwa okusebenzayo:
Ubungakanani bentsundu
Ukulungiswa kweziSombululo: Ukulungiselela ukucocwa kwe-Ethes ngendlela yendlela, njengokusasaza i-polymer kwinxalenye ye-solvere kwinxalenye ye-solvent ngaphambi kokudibanisa nokuthintela ukutshitshiswa kwelayisensi.
I-PH yohlengahlengiso: Kuba seluplose eTech kwi-PH, ukuhlengahlengisa i-PH ye-Solvent kunokuphucula ukubenzela iziqu kunye nozinzo.
Ezokhuseleko: Ezinye izicombululo ezisetyenziselwa ukuchithwa kwee-Selessese Ukungena komoya ngokufanelekileyo kunye nezixhobo zokhuselo lobuqu kufuneka zisetyenziswe xa zithathwa kwezi zisombululo.
6. Ukuqwalaselwa ngokukhethekileyo:
Amayeza: I-Selessese Telupely isetyenziswe ngokubanzi kwiifom zamayeza zokukhululwa okulawulwayo, ukubopha, kunye nokutyibilika. Ukhetho lweSolvent kunye neNdlela yokuZohlwaya ixhomekeke kwiimfuno ezithile zokuqulunqwa.
Ukutya: Kwizicelo zokutya, i-Selese Teluplose ehafu zisetyenziswa njengamantshontsho, ukuzinza, kunye nabathathi-nxaxheba abatyebileyo. Izinyibilikiswa ziyahambelana nemigaqo yokutya kufuneka isetyenzisiwe, kunye neemeko zokuchitha kufuneka zilungiselelwe ukugcina umgangatho wemveliso.
Ulwakhiwo: I-Selese Telupe isetyenziswa kwizixhobo zokwakha ezifana nodaka, ekrwada, kunye nokubulala. Ukhetho lweSolvent kunye neemeko zokuchitheka zibalulekile ekufezekiseni i-viscofity efunekayo kunye neepropathi zokusebenza.
7. Izikhombisi ezizayo:
Ukuphanda ukufumana izinyibilikisi zeNovel kunye neendlela zokuchitheka ziyaqhubeka ukuqhubela phambili intsimi ye-cleulose ether chemistry. Izinyibilikisi eziluhlaza, ezinje ngotywala obungaphezulu kwe-CO2 kunye ne-Ionic, zinike ezinye iindlela ezinokuncitshiswa kwendalo. Ukongeza, inkqubela phambili kubunjineli bePolymer kunye ne-Nanotechnology inokukhokelela kuphuhliso lweselulose
Ukupheliswa kwe-Selessese Talupel yinkqubo eninzi ephembelela izinto ezahlukeneyo ezinjengesakhiwo sePolymer, iiPropoti eziSolvent, kunye neendlela zokuThelisa. Ukuqonda ezi zinto kunye nokukhetha izinyibilikisi ezifanelekileyo kunye neendlela kubalulekile ekufezekisweni kokupheliswa ngokufanelekileyo nokwenza intsebenzo ye-seluplose khebhu kwiileshini ezahlukeneyo.
IXESHA LOKUQALA: APR-10 ukuya kwi-1024