Cellulose ether ke cellulose ea tlhaho (k'hothone e hloekisitsoeng le makhasi a lehong, joalo-joalo) e le lisebelisoa tse tala, ka mor'a hore etherification ea mefuta e fapaneng ea derivatives, ke selulose macromolecule hydroxyl hydrogen ke sehlopha sa ether karolo e itseng kapa ka ho feletseng nkeloa sebaka ka mor'a hore ho thehoe lihlahisoa, ke derivatives tlaase noka. ea cellulose.Cellulose e ka qhibiliha ka metsing, ea hlapolla tharollo ea alkali le mokelikeli oa tlhaho ka mor'a etherification, 'me e na le thepa ea thermoplastic.Cellulose ether mefuta e fapaneng, ho pharaletseng sebelisoa kahong, samente, barbotage, meriana, lijo, peterole, letsatsi le letsatsi lik'hemik'hale, masela, pampiri le likarolo tsa elektronike le liindasteri tse ling.Ho ea ka palo ea substituents ka aroloa ka ether e le 'ngoe le tsoakiloeng ether, ho ea ka ionization ka aroloa ka ionic selulose ether le non-ionic selulose ether.Hona joale, mokhoa oa tlhahiso ea lihlahisoa tsa ionic cellulose ether ionic o hōlile, o bonolo ho o etsa ebile o theko e tlaase, litšitiso tsa indasteri tse batlang li le tlaase, tse sebelisoang haholo-holo ho li-additives tsa lijo, lisebelisoa tsa masela, lik'hemik'hale tsa letsatsi le letsatsi le masimo a mang, ke lihlahisoa tse ka sehloohong tsa tlhahiso 'marakeng.
Hajoale, cellulose ether e kholo ea lefats'e ke CMC, HPMC, MC, HEC le tse ling tse 'maloa, tlhahiso ea CMC ke eona e kholo ka ho fetisisa, e ikarabellang hoo e ka bang halofo ea tlhahiso ea lefats'e, ha HPMC le MC ka bobeli li etsa karolo ea 33% ea tlhoko ea lefats'e. HEC e nka karolo ea 13% ea 'maraka oa lefats'e.Tšebeliso ea bohlokoa ka ho fetisisa ea carboxymethyl cellulose (CMC) ke sesepa, se ikarabellang bakeng sa hoo e ka bang 22% ea tlhokahalo ea 'maraka o tlaase,' me lihlahisoa tse ling li sebelisoa haholo ho thepa ea mohaho, lijo le meriana.
Ii.Kopo e tlase
Nakong e fetileng, ka lebaka la tlhokahalo e fokolang ea ntshetsopele ea cellulose ether ka lik'hemik'hale tsa letsatsi le letsatsi, meriana, lijo, liphahlo le masimo a mang Chaena, tlhokahalo ea cellulose ether Chaena e tsepamisitsoe tšimong ea thepa ea mohaho, ho fihlela kajeno, mohaho oa mohaho. indasteri ea thepa e ntse e nka 33% ea tlhoko ea cellulose ether naheng ea China.'Me joalo ka selulose ether ea Chaena tšimong ea tlhokahalo ea thepa ea mohaho e se e tletse, lik'hemik'hale tsa letsatsi le letsatsi, meriana, lijo, ho roala le likarolo tse ling tsa tlhokahalo li ntse li hōla ka potlako ka nts'etsopele ea theknoloji ea kopo.Ka mohlala, lilemong tsa morao tjena, capsule ea semela e nang le cellulose ether e le eona ntho e ka sehloohong e tala, hammoho le lihlahisoa tse hlahang tse entsoeng ka nama ea maiketsetso e nang le cellulose ether e na le menyetla e pharaletseng ea tlhokahalo le sebaka sa kholo.
Lefapheng la thepa ea mohaho, mohlala, cellulose ether e nang le thickening, ho boloka metsi, condensation butle le litšobotsi tse ling tse babatsehang, kahoo thepa ea ho haha grade cellulose ether e sebelisoa haholo ho ntlafatsa ts'ebetso ea lihlahisoa tsa thepa ea mohaho ho akarelletsa le seretse se itokiselitseng (ho akarelletsa le metsi seretse se tsoakiloeng le seretse se omeletseng), tlhahiso ea resin ea PVC, pente ea latex, putty, joalo-joalo. 'me litlhoko tsa tikoloho tsa bareki bakeng sa thepa ea mohaho li ntse li phahama le ho feta, e leng se lebisang tlhokahalong ea li-non-ionic cellulose ether tšimong ea thepa ea mohaho.Nakong ea Moralo oa Lilemo tse hlano oa bo-13, China e potlakisitse tokiso ea libaka tse sohlokehileng le matlo a sohlokehileng litoropong, le ho matlafatsa khaho ea meaho ea litoropo, ho kenyeletsoa ho potlakisa tokiso ea libaka le metsana e meholo e meholo, le ho khothaletsa tokiso e phethahetseng ea literopo. libaka tsa khale tsa bolulo le nchafatso ea matlo a khale a soahlamaneng le matlo a sa fellang.Karolong ea pele ea 2021, sebaka sa bolulo sa lisekoere-mithara tse limilione tse 755.15 se ile sa qalisoa, hoo e ka bang karolo ea 5.5 lekholong.Sebaka se phethiloeng sa matlo ke lisekoere-mithara tse limilione tse 364.81, ho fihla ho 25.7%.Ho khutlisetsoa morao ha sebaka se phethiloeng sa thekiso ea matlo le meaho ho tla tsamaisa tlhokahalo e nepahetseng tšimong ea thepa ea moaho ea cellulose ether.
3. Mokhoa oa tlhōlisano ea 'maraka
China ke lefats'e la tlhahiso ea cellulose ether ea lefats'e, sethaleng sa hona joale sa thepa ea kaho ea lehae la selulose ether e fihletse sebaka sa lehae, Anxin Chemistry e etellang pele likhoebo lefapheng la cellulose ether, bahlahisi ba bang ba ka sehloohong ba malapeng le bona ba kenyelletsa Kima Chemical joalo-joalo Boemo ba ho roala, meriana. food grade cellulose ether hona joale haholo-holo United States Dow, Ashland, Japan shinetsu, Korea Boroa Lotte le monopoly tse ling tse tsoang linaheng tse ling.Ho tlatselletsoa hoAnxin k'hemistri'maloa ho feta lithane tse likete tse leshome tsa likhoebo, likete tsa lithane tse bao e seng ionic selulose ether dikgwebo tse nyenyane tsa tlhahiso, boholo ba likhoebo tsena tse nyenyane hlahisa thepa e tloaelehileng ea ho haha kereiti cellulose ether,' me ha ho na matla a ho hlahisa ho feta phahameng-qetellong lijo le lihlahisoa tsa meriana.
Nne, boemo ba ho kenya le ho romela thepa ka ntle ho cellulose ether
Ka 2020, ka lebaka la seoa sa mose ho maoatle se lebisitseng ho theoheng ha matla a tlhahiso ea likhoebo tsa kantle ho naha, thepa ea China ea cellulose ether e bonts'itse kholo e potlakileng, ka 2020 ho fihlela thomello ea lithane tse 77,272 tsa cellulose ether.Le hoja palo ea thomello ea cellulose ether Chaena e ntse e hōla ka potlako, lihlahisoa tsa thepa e tsoang linaheng tse ling li thehiloe haholo-holo holim'a thepa ea mohaho cellulose ether, ha palo ea thepa e tsoang linaheng tse ling ea ether ea bongaka le e jeoang ea cellulose e nyenyane haholo, 'me boleng bo ekelitsoeng ba lihlahisoa tse tsoang linaheng tse ling bo tlaase.Hajoale, bophahamo ba thomello ea cellulose ether naheng ea China bo mena ka makhetlo a mane ho feta thepa e tsoang kantle ho naha, empa palo ea thomello e ka tlase ho makhetlo a mabeli ea chelete e tsoang kantle ho naha.Tšimong ea lihlahisoa tse phahameng tsa malapeng cellulose ether ether substitution process e ntse e le sebaka se seholo sa nts'etsopele.
Nako ea poso: Jun-07-2022