Iselulosi ether yi cellulose yendalo (umqhaphu esulungekisiweyo kunye nentlaka iinkuni, njl.) njengezinto ekrwada, emva etherification ezahlukeneyo derivatives, yi cellulose macromolecule hydroxyl hydrogen liqela ether ngokuyinxenye okanye endaweni ngokupheleleyo emva kokusekwa kweemveliso, yi derivatives ezantsi kwi-cellulose.I-Cellulose inokuchithwa emanzini, i-dilute isisombululo se-alkali kunye ne-solvent ye-organic emva kwe-etherification, kwaye ineempawu ze-thermoplastic.Iindidi ze-cellulose ether, ezisetyenziswa ngokubanzi kulwakhiwo, isamente, ukutyabeka, amayeza, ukutya, i-petroleum, imichiza yemihla ngemihla, i-textile, iphepha kunye namacandelo e-elektroniki kunye namanye amashishini.Ngokwenani lee-substituents zinokwahlulwa zibe yi-ether enye kunye ne-ether edibeneyo, ngokwe-ionization inokwahlulwa ibe yi-ionic cellulose ether kunye ne-non-ionic cellulose ether.Okwangoku, inkqubo yemveliso ye-ionic cellulose ether ionic ivuthiwe, kulula ukuyenza kwaye inexabiso eliphantsi, imiqobo yoshishino iphantsi, isetyenziswa ikakhulu kwizongezo zokutya, izongezo zempahla, iikhemikhali zemihla ngemihla kunye neminye imimandla, yeyona mveliso iphambili kwimarike.
Okwangoku, i-ether ye-cellulose ehamba phambili yehlabathi yi-CMC, i-HPMC, i-MC, i-HEC kunye nezinye ezininzi, imveliso ye-CMC yeyona inkulu, ibala malunga nesiqingatha semveliso yehlabathi, ngelixa i-HPMC kunye ne-MC zombini zi-akhawunti malunga ne-33% yemfuno yehlabathi, I-HEC yenza malunga ne-13% yemarike yehlabathi.Eyona nto ibaluleke kakhulu ekupheleni kokusetyenziswa kwe-carboxymethyl cellulose (CMC) yi-detergent, ibalwa malunga ne-22% yemfuno yemarike esezantsi, kunye nezinye iimveliso zisetyenziswa kakhulu kwizinto zokwakha, ukutya kunye namayeza.
Ii.Isicelo esisezantsi
Kwixesha elidlulileyo, ngenxa yophuhliso lwemfuno elinganiselweyo ye-cellulose ether kwimichiza yemihla ngemihla, amayeza, ukutya, iingubo kunye nezinye iindawo e-China, imfuno ye-cellulose ether e-China igxininiswe kwintsimi yezinto zokwakha, kude kube namhlanje, isakhiwo. ishishini lemathiriyeli lisathatha i-33% yemfuno ye-cellulose ether e-China.Kwaye njenge-ether ye-cellulose yaseChina kwintsimi yezinto zokwakha imfuno iye yahlutha, kwiikhemikhali zemihla ngemihla, amayeza, ukutya, ukutya kunye nezinye iindawo ezifunwayo zikhula ngokukhawuleza ngophuhliso lobuchwepheshe besicelo.Ngokomzekelo, kwiminyaka yakutshanje, i-capsule yesityalo ene-cellulose ether njengeyona nto iphambili, kunye neemveliso ezivelayo ezenziwe ngenyama eyenziwe nge-cellulose ether zineemfuno ezibanzi zemfuno kunye nendawo yokukhula.
Kwintsimi yezinto zokwakha, umzekelo, i-ether cellulose kunye nokutyeba, ukugcinwa kwamanzi, ukucotha okucothayo kunye nezinye iimpawu ezibalaseleyo, ngoko ke izinto zokwakha zebakala i-ether cellulose isetyenziswa ngokubanzi ekuphuculeni ukusebenza kwemveliso yezinto zokwakha kuquka udaka oluxubeneyo olulungeleyo (kubandakanywa nodaka olumanzi). Udaka oluxubekileyo kunye nodaka oluxubeneyo olomileyo), ukuveliswa kwe-resin ye-PVC, ipeyinti ye-latex, i-putty, njl. kunye neemfuno zabathengi zokusingqongileyo zezinto zokwakha ziba phezulu nangaphezulu, okukhokelela kwimfuno ye-non-ionic cellulose ether kwintsimi yezinto zokwakha.Ngexesha le-13 leSicwangciso seMinyaka emiHlanu, i-China yakhawulezisa ukulungiswa kweendawo ezidilikayo kunye nezindlu ezidilikayo ezidolophini, kwaye yomeleza ulwakhiwo lweziseko ezingundoqo zasezidolophini, kuquka nokukhawulezisa ukulungiswa kweendawo ezidityanisiweyo kunye neelali ezidolophini, kunye nokukhuthaza ngocwangco ukulungiswa ngokutsha kwezakhiwo zedolophu. iindawo zokuhlala ezindala kunye nokulungiswa kwezindlu ezindala ezidilikayo kunye neendawo zokuhlala ezingagqitywanga.Kwisiqingatha sokuqala sika-2021, i-755.15 yezigidi zeemitha zendawo yokuhlala yaqalwa, ukuya kwi-5.5 ekhulwini.Indawo egqityiweyo yokwakhiwa kwezindlu yi-364.81 yezigidi zeemitha ezikwere, inyuke nge-25.7%.I-rebound yendawo egqityiweyo ye-real estate iya kuqhuba imfuno efanelekileyo kwintsimi yezinto zokwakha i-cellulose ether.
3. Ipateni yokhuphiswano lwemarike
I-China lilizwe lokuvelisa i-cellulose ether yehlabathi jikelele, kwinqanaba langoku lezinto zokwakha zasekhaya ibakala le-cellulose ether liphumelele ngokusisiseko, i-Anxin Chemistry ehamba phambili yamashishini kwintsimi ye-cellulose ether, abanye abavelisi abakhulu basekhaya baquka iKima Chemical njl. Umgangatho wokutya we-cellulose ether okwangoku ikakhulu yi-United States Dow, Ashland, Japan shinetsu, South Korea Lotte kunye nezinye monopoly zangaphandle.Ukwengeza kwiIkhemistri yeAnxineziliqela ngaphezu kweshumi lamawaka eetoni zamashishini, amawaka eetoni ze-non-ionic cellulose etere amashishini amancinci emveliso, uninzi lwala mashishini amancinci avelisa imodeli eqhelekileyo yezixhobo zokwakha i-ether cellulose, kwaye akukho mandla okuvelisa ukutya okuphezulu okuphezulu kunye neemveliso zamayeza.
Okwesine, i-cellulose ether yokungenisa kunye nemeko yokuthumela ngaphandle
Ngo-2020, ngenxa yobhubhani waphesheya okhokelele ekwehleni komthamo wemveliso yamashishini angaphandle, ukuthunyelwa kwe-cellulose ether yaseTshayina kubonise ukukhula okukhawulezileyo, ngo-2020 ukufezekisa ukuthunyelwa kwe-cellulose ether 77,272 tons.Nangona umthamo wokuthunyelwa kwe-cellulose ether e-China ukhula ngokukhawuleza, iimveliso zokuthumela ngaphandle zisekelwe ikakhulu kwizinto zokwakha i-cellulose ether, ngelixa umthamo wokuthumela ngaphandle kwe-ether ye-cellulose yonyango kunye ne-edible cellulose incinci kakhulu, kwaye ixabiso elongezelelweyo leemveliso zokuthumela ngaphandle liphantsi.Okwangoku, umthamo wokuthumela ngaphandle we-cellulose ether e-China uphindwe kane umthamo wokungenisa, kodwa umthamo wokuthumela ngaphandle ungaphantsi kwamaxesha amabini emali yokungenisa.Kwintsimi yeemveliso eziphezulu zasekhaya inkqubo yokutshintshwa kwe-cellulose ether kusekho indawo enkulu yophuhliso.
Ixesha lokuposa: Jun-07-2022