I-Cellulose ether: izinto zokusetshenziswa ezikhuphuka nomfula zinomthelela omkhulu, futhi imakethe engezansi iyakhula.
I-Cellulose ether iwuhlobo lwempahla yemvelo esuselwe ku-polymer, enezici ze-emulsification nezici zokumiswa.Ezinhlotsheni eziningi, i-hydroxypropyl methyl cellulose ether eyi-HPMC iyisivuno esiphezulu, esisetshenziswa kakhulu, ukukhiqizwa kwayo kukhula ngokushesha.
Eminyakeni yamuva nje, sizuza ekukhuleni komnotho kazwelonke, ukukhiqizwa kwe-cellulose ether yezwe lethu kukhuphuka unyaka nonyaka.Ngesikhathi esifanayo, ngokuthuthukiswa kwesayensi yasekhaya nobuchwepheshe, isidingo sokuqala sokungenisa inombolo enkulu ye-cellulose ether ephezulu manje kancane kancane siqaphela indawo, futhi ukuthunyelwa kwe-cellulose ether yasekhaya kukhuphuka.Idatha ibonisa ukuthi kusukela ngoJanuwari kuya kuNovemba 2020, iChina yathumela amathani angama-64,806 e-cellulose ether, ekhuphuke ngo-14.2% unyaka nonyaka, ephakeme kunawo wonke u-2019.
Eminyakeni yamuva nje, sizuza ekukhuleni komnotho kazwelonke, ukukhiqizwa kwe-cellulose ether yezwe lethu kukhuphuka unyaka nonyaka.Ngesikhathi esifanayo, ngokuthuthukiswa kwesayensi yasekhaya nobuchwepheshe, isidingo sokuqala sokungenisa inombolo enkulu ye-cellulose ether ephezulu manje kancane kancane siqaphela indawo, futhi ukuthunyelwa kwe-cellulose ether yasekhaya kukhuphuka.Idatha ibonisa ukuthi kusukela ngoJanuwari kuya kuNovemba 2020, iChina yathumela amathani angama-64,806 e-cellulose ether, ekhuphuke ngo-14.2% unyaka nonyaka, ephakeme kunawo wonke u-2019.
I-cellulose ether ethintwa amanani kakotini akhuphukayo
Izinto zokusetshenziswa eziyinhloko zama-cellulose ethers zihlanganisa imikhiqizo yezolimo nezamahlathi, okuhlanganisa ukotini ocolisisiwe, nemikhiqizo yamakhemikhali, kuhlanganise ne-propylene oxide.Izinto ezingavuthiwe zikakotini ocolile i-cashmere emfushane kakotini, kanti i-cashmere emfushane kakotini ikhiqizwa ikakhulukazi eShandong, eXinjiang, eHebei naseJiangsu.Umthombo woboya bekotini muningi kakhulu futhi utholakala ngokwanele.
Ukotini ubamba ingxenye enkulu esakhiweni somnotho sezolimo zezimpahla, futhi intengo yawo ithintwa izimo zemvelo kanye nokuhlinzekwa nokufunwa kwamazwe ngamazwe.Ngokufanayo, i-propylene oxide, i-chloromethane neminye imikhiqizo yamakhemikhali nayo ithintwa amanani entengo kawoyela ongahluziwe.Njengoba izinto zokusetshenziswa zenza ingxenye enkulu esakhiweni sezindleko ze-cellulose ether, ukushintshashintsha kwentengo yempahla eluhlaza kuthinta ngokuqondile intengo yokuthengisa ye-cellulose ether.
Ukuze ubhekane nokucindezela kwezindleko, abakhiqizi be-cellulose ether bavame ukudlulisa ingcindezi embonini engezansi, kodwa umphumela wokudlulisa uthintwa ubunkimbinkimbi bemikhiqizo yezobuchwepheshe, ukuhlukahluka komkhiqizo kanye nezinga lezindleko zomkhiqizo kanye nenani elingeziwe.Ngokuvamile, amabhizinisi anemigoqo ephezulu yobuchwepheshe, izigaba zemikhiqizo enothile kanye nenani eliphezulu elengeziwe anezinzuzo ezinkulu futhi azogcina izinga lenzuzo yonke elizinzile.Uma kungenjalo, amabhizinisi adinga ukubhekana nengcindezi enkulu yezindleko.Ukwengeza, uma imvelo yangaphandle ingaqinile futhi ububanzi bokushintshashintsha komkhiqizo bukhulu, amabhizinisi wempahla eluhlaza azimisele kakhulu ukukhetha amakhasimende angaphansi komfula anesilinganiso esikhulu sokukhiqiza namandla aphelele aqinile, ukuze kuqinisekiswe izinzuzo zezomnotho ngesikhathi esifanele futhi kuncishiswe izingozi.Ngakho-ke, lokhu kunciphisa ukuthuthukiswa kwamabhizinisi amancane e-cellulose ether ngokwezinga elithile.
I-Cellulose ether iwuhlobo lwempahla yemvelo esuselwe ku-polymer, enezici ze-emulsification nezici zokumiswa.Ezinhlotsheni eziningi, i-hydroxypropyl methyl cellulose ether eyi-HPMC iyisivuno esiphezulu, esisetshenziswa kakhulu, ukukhiqizwa kwayo kukhula ngokushesha.
Ngokuthuthuka okuqhubekayo kwesayensi nobuchwepheshe, imakethe yesidingo esingezansi iyakhula, futhi ububanzi bezicelo ezingezansi kulindeleke ukuthi bukhule ngokuqhubekayo, futhi isidingo esingezansi sigcina ukukhula okuzinzile.Esakhiweni semakethe esezansi nomfula we-cellulose ether, izinto zokwakha, ukukhishwa kukawoyela, ukudla nezinye izinkambu zithatha isikhundla esikhulu.Phakathi kwazo, umkhakha wezinto zokwakha uyimakethe enkulu yabathengi, ebalwa ngaphezu kwama-30%.
Imboni yezokwakha iwumkhakha omkhulu wokusetshenziswa kwemikhiqizo ye-HPMC
Embonini yezokwakha, imikhiqizo ye-HPMC idlala isibopho esibalulekile, ukugcinwa kwamanzi neminye imiphumela.Ngemva kokuxuba inani elincane le-HPMC nodaka lukasimende, i-viscosity, i-tensile kanye namandla e-shear kasimende, udaka kanye ne-binder ingandiswa, ukuze kuthuthukiswe ukusebenza kwezinto zokwakha, ukuthuthukisa ikhwalithi yokwakha kanye nokusebenza kahle kokwakhiwa kwemishini.Ngaphezu kwalokho, i-HPMC futhi iyisivimbeli esibalulekile sokukhiqizwa nokuthuthwa kukakhonkolo wezohwebo, odlala indima ekukhiyweni kwamanzi nasekuthuthukiseni izakhiwo ze-rheological zikakhonkolo.Njengamanje, i-HPMC iyimikhiqizo ye-cellulose ether ebaluleke kakhulu esetshenziswa ekwakheni izinto zokuvala.
Imboni yezokwakha iyimboni eyinsika emnothweni wethu wezwe.Idatha ikhombisa ukuthi indawo yokwakha izindlu inyuke isuka ku-7.08 billion square metres ngo-2010 yaya ku-14.42 billion wamamitha-skwele ngo-2019, iqhuba kakhulu ukukhula kwemakethe ye-cellulose ether.
Ukukhula kwemboni yezindlu ezithengiswayo kwakhula, futhi indawo yokwakha nokuthengisa yakhuphuka unyaka nonyaka.Idatha yomphakathi ikhombisa ukuthi ngo-2020, ukwehla konyaka nonyaka endaweni entsha yokwakhiwa kwezindlu zokuhlala ezithengiswayo kuyaqhubeka nokuncipha, kwehle ngo-1.87% unyaka nonyaka, u-2021 kulindeleke ukuthi kuqhubeke umkhuba wokulungisa.Ezinyangeni ezimbili zokuqala zalo nyaka, izinga lokukhula kwezindawo zokuhlala ezithengiswayo liphinde lakhuphuka laya ku-104.9%, okuwukunyuka okuhloniphekile.
Ukumba uwoyela
Imakethe yemboni yezinkonzo zobunjiniyela bokumba ithintwa ikakhulukazi ukutshalwa kwezimali kwe-E&P yomhlaba wonke, cishe u-40% wephothifoliyo yokuhlola umhlaba wonke enikelwa ezinsizakalweni zobunjiniyela bokumba.
Ngesikhathi sokumba nokukhiqiza uwoyela, uketshezi lokumba ludlala indima ebalulekile ekuphatheni nasekumiseni ama-chips, ukuqinisa izindonga zembobo nokulinganisa ukucindezela kokwakheka, ukupholisa kanye nokugcoba ibhithi, kanye nokudlulisa amandla e-hydrodynamic.Ngakho-ke, emsebenzini wokumba amafutha, kubaluleke kakhulu ukugcina umswakama ofanele, i-viscosity, i-fluidity nezinye izinkomba zokubhoboza uketshezi.I-Polyanionic cellulose, noma i-PAC, ingajiya, igcobe izingcezu, futhi idlulise amandla e-hydrodynamic.Ngenxa yesimo sokwakheka komhlaba esiyinkimbinkimbi sendawo yokugcina uwoyela kanye nobunzima bokubhola, kunenani elikhulu lesidingo sokusetshenziswa kwe-PAC.
Imboni yezinto ezisizayo
Ama-non-ionic cellulose ethers asetshenziswa kakhulu embonini yezemithi njengezihlanganisi zemithi, njengama-thickeners, ama-disperants, ama-emulsifiers kanye nabaqambi bamafilimu.Isetshenziselwa ukugqoka ifilimu nokunamathisela amaphilisi okwelapha, futhi ingasetshenziswa ekumisweni, ukulungiswa kwamehlo, amaphilisi antantayo nokunye.Ngenxa yezidingo eziqinile zokuhlanzeka kanye ne-viscosity yemikhiqizo ye-cellulose ether yokwelapha, inqubo yokukhiqiza iyinkimbinkimbi futhi izinqubo zokugeza ziyinkimbinkimbi kakhulu.Uma kuqhathaniswa neminye imikhiqizo ye-cellulose ether, izinga lokuqoqwa liphansi, izindleko zokukhiqiza ziphezulu, kodwa inani elingeziwe lomkhiqizo nalo liphakeme.Izinto ezisiza ekwenziweni kwemithi zisetshenziswa kakhulu ekulungiseni ikhemikhali, emithini yegunya lobunikazi baseShayina, emikhiqizweni yebhayoloji neye-biochemical neminye imikhiqizo yezemithi.
Ngenxa yokuthi imboni yezinto ezisizayo ezenza imithi iqale sekwephuzile, izinga lokuthuthuka liphansi okwamanje, indlela yokusebenza yemboni idinga ukuthuthukiswa.Phakathi kwenani eliphumayo lamalungiselelo emithi yasekhaya, inani eliphumayo lezingubo zomuthi zasekhaya libalelwa engxenyeni ephansi kakhulu ka-2% -3%, ephansi kakhulu kunaleyo yabasiza bezokwelapha bakwamanye amazwe (cishe u-15%).Kungabonakala ukuthi sisekhona isikhala esikhulu sokuthuthukiswa kwezinto ezisizayo zokwelapha zasekhaya, okulindeleke ukuthi ziqhube ngempumelelo ukukhula kwemakethe efanelekile ye-cellulose ether.
Isikhathi sokuthumela: Aug-31-2022