I-ether ye-celluloseI-cellulose yemvelo (ukotini ocwengekile kanye ne-pulp yokhuni, njll.) njengezinto zokusetshenziswa, ngemuva kokufakelwa kwezinhlobo ezahlukene ze-derivatives, yi-cellulose macromolecule hydroxyl hydrogen yiqembu le-ether elithathelwe indawo kancane noma ngokuphelele ngemuva kokwakhiwa kwemikhiqizo, iyi-derivatives engezansi ye-cellulose. I-Cellulose ingancibilikiswa emanzini, inciphise isixazululo se-alkali kanye ne-organic solvent ngemuva kokufakelwa, futhi inezakhiwo ze-thermoplastic. Uhlobo lwe-ether ye-Cellulose, olusetshenziswa kabanzi ekwakheni, usimende, ukumboza, imithi, ukudla, uphethiloli, amakhemikhali ansuku zonke, izindwangu, izingxenye zephepha neze-elekthronikhi kanye neminye imboni. Ngokwenani lezinto ezithathelwa indawo zingahlukaniswa zibe yi-ether eyodwa kanye ne-ether exubile, ngokusho kwe-ionization zingahlukaniswa zibe yi-ether ye-ionic cellulose kanye ne-non-ionic cellulose ether. Njengamanje, inqubo yokukhiqiza umkhiqizo we-ionic cellulose ether ivuthiwe, kulula ukuyenza futhi inezindleko eziphansi, izithiyo zemboni eziphansi, ezisetshenziswa kakhulu ezithasiselweni zokudla, izithasiselo zendwangu, amakhemikhali ansuku zonke kanye neminye imikhakha, yimikhiqizo eyinhloko yokukhiqiza emakethe.
Njengamanje, i-cellulose ether eyinhloko emhlabeni wonkeI-CMC, i-HPMC, i-MC, i-HECkanye nezinye eziningana,I-CMCumkhiqizo mkhulu kunayo yonke, uthatha cishe ingxenye yomkhiqizo womhlaba wonke, kuyilapho i-HPMC ne-MC zombili zithatha cishe u-33% wesidingo somhlaba wonke, i-HEC ithatha cishe u-13% wemakethe yomhlaba wonke. Ukusetshenziswa okubaluleke kakhulu kwe-carboxymethyl cellulose (CMC) insipho, ethatha cishe u-22% wesidingo semakethe esezansi, kanti eminye imikhiqizo isetshenziswa kakhulu ezintweni zokwakha, ekudleni nakwezokwelapha.
Ii. Uhlelo lokusebenza olungezansi
Esikhathini esidlule, ngenxa yesidingo esilinganiselwe sokuthuthukiswa kwe-cellulose ether kumakhemikhali ansuku zonke, imithi, ukudla, izembozo kanye neminye imikhakha eShayina, isidingo se-cellulose ether eShayina sigxile kakhulu emkhakheni wezinto zokwakha, kuze kube namuhla, imboni yezinto zokwakha isathatha u-33% wesidingo se-cellulose ether eShayina. Futhi njenge-cellulose ether yaseShayina emkhakheni wesidingo sezinto zokwakha isigcwalisiwe, kumakhemikhali ansuku zonke, imithi, ukudla, izembozo kanye neminye imikhakha yesidingo ikhula ngokushesha ngokuthuthukiswa kobuchwepheshe bokusetshenziswa. Isibonelo, eminyakeni yamuva nje, i-capsule yesitshalo ene-cellulose ether njengezinto ezisetshenziswayo eziyinhloko, kanye nemikhiqizo evelayo eyenziwe ngenyama yokwenziwa ene-cellulose ether inamathemba amakhulu okukhula.
Emkhakheni wezinto zokwakha, isibonelo, i-cellulose ether enokuqina, ukugcinwa kwamanzi, ukujiya okuhamba kancane kanye nezinye izici ezinhle kakhulu, ngakho-ke i-cellulose ether yezinga lezinto zokwakha isetshenziswa kabanzi ukuthuthukisa ukusebenza kwemikhiqizo yezinto zokwakha kufaka phakathi udaka oluxutshwe ngomumo (kufaka phakathi udaka oluxutshwe olumanzi kanye nodaka oluxutshwe owomile), ukukhiqizwa kwe-resin ye-PVC, upende we-latex, i-putty, njll. Ngenxa yokuthuthuka kwezinga lokufudukela emadolobheni eShayina, intuthuko esheshayo embonini yezinto zokwakha, izinga lokusetshenziswa kwemishini yokwakha liyaqhubeka nokuthuthuka, futhi izidingo zabathengi zemvelo zezinto zokwakha ziya ngokuya ziphakama, okuholela ekudingweni kwe-non-ionic cellulose ether emkhakheni wezinto zokwakha. Ngesikhathi se-13th Five-Year Plan, iShayina yasheshisa ukulungiswa kwezindawo ezigugile kanye nezindlu ezigugile emadolobheni, futhi yaqinisa ukwakhiwa kwengqalasizinda yasemadolobheni, kufaka phakathi ukusheshisa ukulungiswa kwezindawo ezigugile kanye nemizana emadolobheni, kanye nokukhuthaza ngokuhlelekile ukulungiswa okuphelele kwezindawo zokuhlala ezindala kanye nokuvuselelwa kwezindlu ezindala ezigugile kanye nezindlu ezingaphelele. Engxenyeni yokuqala ka-2021, kwaqalwa amamitha-skwele ayizigidi ezingu-755.15 esikhala sokuhlala, okwenyuke ngamaphesenti angu-5.5. Indawo yokuhlala eqediwe ingu-364.81 million square metres, okwenyuke ngamaphesenti angu-25.7. Ukubuyela emuva kwendawo yokuhlala eqediwe kuzothuthukisa isidingo esifanele emkhakheni wezinto zokwakha ze-cellulose ether.
3. Iphethini yokuncintisana emakethe
IShayina iyizwe elikhiqiza i-cellulose ether emhlabeni jikelele, esigabeni samanje sezinga lezinto zokwakha zasekhaya, i-cellulose ether isifinyelele indawo, i-Anxin Chemistry ihola amabhizinisi emkhakheni we-cellulose ether, abanye abakhiqizi abakhulu basekhaya bafaka neKima Chemical njll. Izinga lokumboza, i-cellulose ether yokudla kwemithi okwamanje iyinhloko ye-United States Dow, Ashland, Japan shinetsu, South Korea Lotte kanye nezinye izinkampani zangaphandle. Ngaphezu kwe-Anxin chemistry, amathani angaphezu kwezinkulungwane eziyishumi zamabhizinisi, amathani ezinkulungwane zamabhizinisi amancane okukhiqiza i-non-ionic cellulose ether, iningi lala mabhizinisi amancane akhiqiza imodeli ejwayelekile yezinga lezinto zokwakha i-cellulose ether, futhi awekho amandla okukhiqiza imikhiqizo yokudla ephezulu kanye nemithi.
Okwesine, isimo sokungenisa nokuthumela ngaphandle kwe-cellulose ether
Ngo-2020, ngenxa yobhubhane lwaphesheya kwezilwandle kwaholela ekwehleni kwamandla okukhiqiza amabhizinisi angaphandle, ukuthunyelwa kwamanye amazwe kwe-cellulose ether eShayina kwabonisa ukukhula okusheshayo, ngo-2020 ukufeza ukuthunyelwa kwamanye amazwe kwe-cellulose ether ngamathani angu-77,272. Nakuba umthamo wokuthunyelwa kwamanye amazwe we-cellulose ether eShayina ukhula ngokushesha, imikhiqizo yokuthunyelwa kwamanye amazwe isekelwe kakhulu ezintweni zokwakha i-cellulose ether, kuyilapho umthamo wokuthunyelwa kwamanye amazwe we-cellulose ether yezokwelapha neyokudla uncane kakhulu, futhi inani elengeziwe lemikhiqizo yokuthunyelwa kwamanye amazwe liphansi. Njengamanje, umthamo wokuthunyelwa kwamanye amazwe we-cellulose ether eShayina uphindwe kane umthamo wokungeniswa kwamanye amazwe, kodwa umthamo wokuthunyelwa kwamanye amazwe ungaphansi kwenani lokungeniswa kabili. Emkhakheni wemikhiqizo ephezulu, inqubo yokuthumela kwamanye amazwe ye-cellulose ether iseseyindawo enkulu yentuthuko.
Isikhathi sokuthunyelwe: Ephreli-25-2024