Ukusetyenziswa kwe-selsulose ether eluthandweni

Kudaka owomileyo, i-Selese Ether yeyona nto iphambili enokuthi iphucule kakhulu ukusebenza kodaka olumanzi kwaye ichaphazele ukusebenza kolwakhiwo lodaka. I-Methyl Seler Sether idlala indima yokugcina amanzi, ukuqina, kunye nokuphuculwa kokusebenza kwenyathelo. Umsebenzi wokugcina amanzi ofanelekileyo uqinisekisa ukuba udaka aluyi kubangela isanti, i-powding kunye nokuncitshiswa kwamandla ngenxa yokunqongophala kwamanzi kunye nokungaphelelanga kwesamente; Ukutyibilika kwempembelelo kumandla olwakhiwo lodaka olumanzi lunyuke kakhulu, kwaye ukongezwa kwe-methyl seluplose inokuthi iphucule i-viscations emanzi, kwaye iyakwazi ukwenza i-visnes, ngaloo ndlela iphucule inkunkuma; Ukongeza, yahlukile indima yeselfowuni kwiimveliso zahlukile, umzekelo: IselUtulose eTillesheves inokunyusa ixesha lokuvula kunye nokulungelelanisa ixesha; I-selsulose kwi-folairation spraise orurn inokuphucula amandla olwakhiwo lodaka lwamanzi; Kwinqanaba lokuzimisela, ukudlala isellulose kwindima yokuthintela ukuhlala, ukwahlula kunye nokuchasa.

Ukuveliswa kwe-ether yeselselose kwenziwa ikakhulu ngeentsinga zendalo nge-Alkali Dastions, i-Grafting Reaction (i-Etherting), ukuhlamba, ukumisa, ukugaya kunye nezinye iinkqubo. Ezona zinto ziphambili ze-fibers zendalo zinokwahlulwa zibe zahlulwe zaza: I-Cotton Fiber, i-Cedar Fiber, i-fiber ye-fiber, njl njl, njl njl. Okwangoku, abavelisi abaphambili baseSelecelowose basebenzisa i-cotton fiber (imveliso ye-nitrocellulose) njengeyona nto iphambili. I-seluplose thein inokwahlulwa ibe yi-Ionic kwaye ingenzi-i-ionic. Uhlobo lwe-ionic ikakhulu lubandakanya i-carboxymethyl seluplose ityuwa, kwaye uhlobo olungaqhelekanga lubandakanya i-methyl ye-methyl, i-methyl hydrosethyl (propyl) Su njalo njalo. Ngomgubo owomileyo, kuba i-ionic selsulose (i-carboxymethyl selsulose ityuwa) engazinzanga kwi-calcium i-calcium, kunqabile ukuba isetyenziswe kwiimveliso zomgubo ofana ne-cemeces.

Ukugcinwa kwamanzi kweselselose ikwanxulumene neqondo lobushushu elisetyenzisiweyo. Ukugcinwa kwamanzi kwe-methyl selethe ye-ether ihla ngokunyuka kobushushu. Umzekelo, ehlotyeni, xa kukho ukukhanya kwelanga, udonga lwangaphandle lubekwe phantsi, oluhlala lukhawulezisa ukuphiliswa kwesamente kunye nodaka. Ukukhanya kunye nokwehla kwenqanaba lokugcina amanzi kukhokelela kwimvakalelo ecacileyo yokuba zombini intsebenzo yokwakha kunye nentsebenzo yokulwa nokuchasa iyachaphazeleka. Kule meko, ibaluleke kakhulu ukunciphisa impembelelo yezinto zobushushu. Ngamanye amaxesha ayinakukwazi ukuhlangabezana neemfuno zokusetyenziswa. Olunye unyango lwenziwa kwiselsulose, njengokukhulisa inqanaba lokuthengisa, njl njl.

Ukugcinwa kwamanzi kwe-Selelose: Izinto eziphambili ezichaphazela ukugcinwa kwamanzi kubandakanya isixa se-selsulose yongezwa, i-viscosity yesellulose, ukulunga kwesemo yendawo yokusebenza.

I-viscosity ye-sellyulose: Ngokubanzi, ukuphakama kwe-viscofity, ilunge ngakumbi umphumo wokugcina amanzi, kodwa ukwehla komgangatho wemoleyuli, kunye nokuncipha kwemolekyuli, kunye nefuthe elibi kwintsebenzo yolwakhiwo kunye namandla odaka. Ukuphakama kwe-viscofity, eyona nto icacileyo yokuthambisa kodaka, kodwa ayifani ngokuthe ngqo. Ukuphelisa i-viscofity, kokukhona u-viscous olona dumo lwamanzi luya kuba. Ngexesha lolwakhiwo, iya kunamathela kwi-Scraper kwaye inamathele okuphezulu kwaye inamathele okuphezulu kwi-subtate, kodwa ayiyi kunceda kakhulu ukwandisa amandla olwakhiwo lofudula lolwakhiwo, kwaye intsebenzo ye-Anti-SAG ayizukubonakala ngokucacileyo ngexesha lokwakha.

Ukulunga kweSellUlose: Ukuhlekisa kuchaphazela ukunyibilikisa i-seluplose. I-Coarse sellulose idla ngokuba ne-granerunt kwaye ichithwe ngokulula emanzini ngaphandle kolwaphulo-mthetho, kodwa inqanaba lokutshabalalisa licotha kakhulu. Ayifanelekanga ukuba isetyenziswe kumda owomileyo. Ekuveliseni ikhaya leselfowuni i-cleclese, akukho lula ukusasaza kwaye inyibilike emanzini, kwaye kulula ukuyigcuma. Kuphela ngumgubo owoneleyo ofanelekileyo unokuphepha i-methyl ye-ethergase i-ethergameras xa ukongeza amanzi kunye nokuvuselela. Kodwa i-Selecle Sury I-Ether Ither ayisiyonto inkcitho kodwa ikwanciphisa amandla endawo yodaka. Xa umgubo onjalo owomileyo owakhiwe kwindawo enkulu, isantya sokunyangwa kodaka lwasekhaya ngokucacileyo, kwaye uqhekezo ngenxa yamaxesha oliphi na enzongolo olwahlukileyo. Ngenxa yexesha elifutshane lokuxuzwa, udaka ngolwakhiwo lomatshini lufuna ukubaphatha okuphezulu.


IXESHA LOKUQALA: NgoFebwe-13 ukuya ku-923