Cellulose ether: lisebelisoa tse tala tse holimo li na le tšusumetso e kholo, 'me maraka a tlaase a ntse a hōla.
Cellulose ether ke mofuta oa thepa ea tlhaho e nkiloeng ke polymer, e nang le litšobotsi tsa emulsification le ho emisoa.Ka mefuta e mengata, hydroxypropyl methyl cellulose ether e leng HPMC ke lihlahisoa tse phahameng ka ho fetisisa, tse sebelisoang ka ho fetisisa, tlhahiso ea eona e ntse e eketseha ka potlako.
Lilemong tsa morao tjena, ho rua molemo kholong ea moruo oa naha, tlhahiso ea cellulose ether ea naha ea rona e nyoloha selemo le selemo.Ka nako e ts'oanang, ka tsoelo-pele ea saense le thekenoloji ea malapeng, tlhokahalo ea pele ea ho kenya palo e kholo ea ether ea cellulose e phahameng hona joale butle-butle e hlokomela sebaka sa naha, 'me ho romela thepa ea malapeng ea cellulose ether e ntse e phahama.Lintlha li bonts'a hore ho tloha ka Pherekhong ho isa Pulungoana 2020, China e rometse lithane tse 64,806 tsa cellulose ether, ho nyoloha ka 14.2% selemo le selemo, ho feta 2019 eohle.
Lilemong tsa morao tjena, ho rua molemo kholong ea moruo oa naha, tlhahiso ea cellulose ether ea naha ea rona e nyoloha selemo le selemo.Ka nako e ts'oanang, ka tsoelo-pele ea saense le thekenoloji ea malapeng, tlhokahalo ea pele ea ho kenya palo e kholo ea ether ea cellulose e phahameng hona joale butle-butle e hlokomela sebaka sa naha, 'me ho romela thepa ea malapeng ea cellulose ether e ntse e phahama.Lintlha li bonts'a hore ho tloha ka Pherekhong ho isa Pulungoana 2020, China e rometse lithane tse 64,806 tsa cellulose ether, ho nyoloha ka 14.2% selemo le selemo, ho feta 2019 eohle.
Cellulose ether e anngoeng ke litheko tsa k'hothone tse holimo
Lisebelisoa tse ka sehloohong tsa li-cellulose ethers li kenyelletsa lihlahisoa tsa temo le tsa meru, ho kenyelletsa le k'hothone e hloekisitsoeng, le lihlahisoa tsa lik'hemik'hale, ho kenyelletsa le propylene oxide.Thepa e tala ea k'hothone e hloekisitsoeng ke k'hothone e khuts'oane ea cashmere, 'me k'hothone e khuts'oane ea cashmere e hlahisoa haholo Shandong, Xinjiang, Hebei le Jiangsu.Mohloli oa boea ba k'hothone o ngata haholo ebile o na le phepelo e lekaneng.
Cotton e ikarabella bakeng sa karolo e kholo sebopehong sa moruo oa temo ea thepa, 'me theko ea eona e angoa ke maemo a tlhaho le phepelo le tlhoko ea machabeng.Ka mokhoa o ts'oanang, propylene oxide, chloromethane le lihlahisoa tse ling tsa lik'hemik'hale le tsona li angoa ke litheko tsa machaba tsa oli e tala.Kaha lihlahisoa tse tala li nka karolo e kholo mohahong oa litšenyehelo tsa cellulose ether, ho fetoha ha theko ea lihlahisoa tse tala ho ama ka ho toba theko ea thekiso ea cellulose ether.
E le ho sebetsana ka katleho le khatello ea litšenyehelo, bahlahisi ba ether ea cellulose hangata ba fetisetsa khatello ho indasteri e tlaase, empa phello ea ho fetisa e angoa ke ho rarahana ha lihlahisoa tsa theknoloji, mefuta-futa ea lihlahisoa le boemo ba theko ea lihlahisoa le boleng bo eketsehileng.Ka kakaretso, likhoebo tse nang le litšitiso tse phahameng tsa tekheniki, likarolo tsa lihlahisoa tse ruileng le boleng bo phahameng bo ekelitsoeng li na le melemo e meholo mme li tla boloka phaello e tsitsitseng e batlang e tsitsitse.Ho seng joalo, likhoebo li hloka ho tobana le khatello e matla ea litšenyehelo.Ho phaella moo, haeba tikoloho ea ka ntle e sa tsitsa 'me mefuta e mengata ea ho fetoha ha lihlahisoa e le khōlō, likhoebo tse nang le lisebelisoa tse tala li ikemiselitse ho khetha bareki ba tlaase ba nang le tekanyo e kholo ea tlhahiso le matla a matla a pharaletseng, e le ho etsa bonnete ba hore melemo ea moruo e nakong le ho fokotsa likotsi.Ka hona, sena se fokotsa nts'etsopele ea likhoebo tse nyane tsa cellulose ether ho isa bohōleng bo itseng.
Cellulose ether ke mofuta oa thepa ea tlhaho e nkiloeng ke polymer, e nang le litšobotsi tsa emulsification le ho emisoa.Ka mefuta e mengata, hydroxypropyl methyl cellulose ether e leng HPMC ke lihlahisoa tse phahameng ka ho fetisisa, tse sebelisoang ka ho fetisisa, tlhahiso ea eona e ntse e eketseha ka potlako.
Ka tsoelopele e tsoelang pele ea mahlale le thekenoloji, 'maraka oa tlhokeho e tlase o ntse o hola, mme sekhahla sa ts'ebeliso e tlase se lebelletsoe ho hola khafetsa, mme tlhoko e tlase e boloka kholo e tsitsitseng.Sebakeng se ka tlase sa 'maraka oa cellulose ether, thepa ea kaho, ho ntšoa ha oli, lijo le masimo a mang a nka sebaka se seholo.Har'a bona, lekala la thepa ea mohaho ke 'maraka o moholo ka ho fetisisa oa bareki, o ikarabellang ho feta 30%.
Indasteri ea kaho ke sebaka se seholo sa tšebeliso ea lihlahisoa tsa HPMC
Ka indasteri ea kaho, lihlahisoa tsa HPMC li bapala tlamo ea bohlokoa, ho boloka metsi le litlamorao tse ling.Kamora ho kopanya palo e nyane ea HPMC le seretse sa samente, matla a viscosity, tensile le shear ea seretse sa samente, seretse le binder e ka eketsoa, e le ho ntlafatsa ts'ebetso ea thepa ea moaho, ho ntlafatsa boleng ba kaho le katleho ea kaho ea mochini.Ntle le moo, HPMC e boetse e na le tšitiso ea bohlokoa bakeng sa tlhahiso le lipalangoang tsa konkreite ea khoebo, e bapalang karolo ea ho notlela metsi le ho ntlafatsa thepa ea rheological ea konkreite.Hona joale, HPMC ke lihlahisoa tsa bohlokoa ka ho fetisisa tsa cellulose ether tse sebelisoang ho haha thepa ea ho tiisa.
Indasteri ea kaho ke tšiea ea bohlokoa moruong oa naha ea rona.Lintlha li bonts'a hore sebaka sa kaho ea matlo se eketsehile ho tloha ho lisekoere-mithara tse limilione tse likete tse 7.08 ka 2010 ho isa ho lisekoere-mithara tse limilione tse likete tse 14.42 ka 2019, se tsamaisang ka matla kholo ea 'maraka oa cellulose ether.
Kakaretso ea indasteri ea thekiso ea matlo e ile ea phahama, 'me sebaka sa kaho le thekiso se ile sa phahama selemo le selemo.Lintlha tsa sechaba li bonts'a hore ka 2020, ho fokotseha ha khoeli le khoeli sebakeng se secha sa kaho ea matlo a bolulo a khoebo ho ntse ho fokotseha, ho theosa le 1.87% selemo le selemo, 2021 e lebelletsoe ho tsoela pele ka mokhoa oa ho lokisa.Likhoeling tse peli tsa pele tsa selemo sena, sekhahla sa kholo ea sebaka sa bolulo sa khoebo se ile sa khutlela ho 104,9%, e leng keketseho e hlomphehang.
Ho cheka oli
Mmaraka oa indasteri ea lits'ebeletso tsa boenjiniere ba ho cheka o angoa haholo ke matsete a E&P a lefats'e, 'me hoo e ka bang 40% ea lefapha la lipatlisiso tsa lefats'e le nehetsoeng litšebeletso tsa boenjiniere ba ho cheka.
Nakong ea ho cheka le ho hlahisa oli, maro a ho cheka a bapala karolo ea bohlokoa ho jare le ho emisa li-chips, ho matlafatsa marako a lesoba le khatello ea sebopeho sa ho leka-lekanya, ho pholisa le ho tlotsa hanyane, le ho fetisa matla a hydrodynamic.Ka hona, mosebetsing oa ho cheka oli, ho bohlokoa haholo ho boloka mongobo o nepahetseng, viscosity, fluidity le matšoao a mang a mokelikeli oa ho cheka.Polyanionic cellulose, kapa PAC, e ka tenya, ea tlotsa likotoana le ho fetisa matla a hydrodynamic.Ka lebaka la maemo a thata a jeoloji a sebaka sa polokelo ea oli le bothata ba ho cheka, ho na le palo e kholo ea tlhokahalo ea ts'ebeliso ea PAC.
Indasteri ea li-excipients tsa meriana
Li-non-ionic cellulose ethers li sebelisoa haholo indastering ea meriana e le li-excipients tsa meriana, tse kang li-thickeners, dispersants, emulsifiers le baetsi ba lifilimi.E sebelisoa bakeng sa ho roala filimi le sekhomaretsi sa matlapa a meriana, hape e ka sebelisoa ho emisoa, ho lokisetsa mahlo, matlapa a phaphametseng joalo-joalo.Ka lebaka la litlhoko tse thata haholoanyane mabapi le bohloeki le viscosity ea lihlahisoa tsa meriana ea cellulose ether, mokhoa oa ho etsa lihlahisoa o batla o rarahane 'me mekhoa ea ho hlatsoa e thata haholoanyane.Ha ho bapisoa le lihlahisoa tse ling tsa cellulose ether, sekhahla sa pokello se tlase, theko ea tlhahiso e phahame, empa boleng bo ekelitsoeng ba sehlahisoa le bona bo phahame.Lisebelisoa tsa meriana li sebelisoa haholo litokisetsong tsa meriana ea lik'hemik'hale, meriana ea patent ea Chaena, lihlahisoa tsa likokoana-hloko le tsa biochemical le lihlahisoa tse ling tsa meriana.
Hobane indasteri ea lisebelisoa tse thusang tsa meriana e qalile ka morao ho nako, boemo ba ntlafatso ka kakaretso bo tlase hajoale, mochini oa indasteri o hloka ho ntlafatsoa le ho feta.Har'a boleng ba tlhahiso ea litokisetso tsa meriana ea malapeng, boleng ba lihlahisoa tsa meriana ea malapeng bo ikarabella bakeng sa karolo e batlang e le tlaase ea 2% -3%, e leng tlase haholo ho feta ea li-excipients tsa meriana ea linaheng tse ling (hoo e ka bang 15%).Ho ka bonoa hore ho ntse ho e-na le sebaka se seholo sa nts'etsopele ea li-excipients tsa meriana ea malapeng, tse lebelletsoeng ho tsamaisa ka katleho kholo ea 'maraka o amehang oa cellulose ether.
Nako ea poso: Aug-31-2022