I-cellulose ether: izinto eziluhlaza ezinyukayo zinempembelelo enkulu, kwaye imarike esezantsi ikhula.
I-ether ye-cellulose luhlobo lwendalo lwe-polymer ephuma kwi-polymer, ene-emulsification kunye neempawu zokumiswa.Kwiintlobo ezininzi, i-hydroxypropyl methyl cellulose ether eyi-HPMC sesona sivuno siphezulu, esona sisetyenziswa kakhulu, imveliso yayo ikhula ngokukhawuleza.
Kwiminyaka yakutshanje, ukuzuza ekukhuleni koqoqosho lwesizwe, imveliso ye-cellulose ether yelizwe lethu inyuka unyaka nonyaka.Ngelo xesha, kunye nophuhliso lwesayensi yasekhaya kunye nobuchwepheshe, imfuno yokuqala yokungenisa inani elikhulu le-ether ye-cellulose ephezulu ngoku ngokuthe ngcembe iqonda indawo yokuhlala, kwaye ukuthunyelwa kwe-ether ye-cellulose yasekhaya kuyenyuka.Idatha ibonisa ukuba ukususela ngoJanuwari ukuya kuNovemba ka-2020, i-China yathumela ngaphandle kweetoni ezingama-64,806 ze-cellulose ether, ukunyuka kwe-14.2% ngonyaka, ngaphezulu kwe-2019 yonke.
Kwiminyaka yakutshanje, ukuzuza ekukhuleni koqoqosho lwesizwe, imveliso ye-cellulose ether yelizwe lethu inyuka unyaka nonyaka.Ngelo xesha, kunye nophuhliso lwesayensi yasekhaya kunye nobuchwepheshe, imfuno yokuqala yokungenisa inani elikhulu le-ether ye-cellulose ephezulu ngoku ngokuthe ngcembe iqonda indawo yokuhlala, kwaye ukuthunyelwa kwe-ether ye-cellulose yasekhaya kuyenyuka.Idatha ibonisa ukuba ukususela ngoJanuwari ukuya kuNovemba ka-2020, i-China yathumela ngaphandle kweetoni ezingama-64,806 ze-cellulose ether, ukunyuka kwe-14.2% ngonyaka, ngaphezulu kwe-2019 yonke.
I-ether ye-cellulose echatshazelwa ngamaxabiso e-cotton aphezulu
Izixhobo eziphambili ze-cellulose ethers ziquka iimveliso zezolimo kunye nezamahlathi, kuquka i-cotton ecocekileyo, kunye neemveliso zemichiza, kuquka i-propylene oxide.Impahla ekrwada yomqhaphu esulungekisiweyo yicashmere emfutshane yomqhaphu, kunye necashmere emfutshane yomqhaphu iveliswa ikakhulu eShandong, eXinjiang, eHebei naseJiangsu.Umthombo woboya bekotoni ubuninzi kakhulu kwaye bufumaneka ngokwaneleyo.
Umqhaphu uthatha umlinganiselo omkhulu kulwakhiwo loqoqosho lwemveliso yezolimo, kwaye ixabiso layo lichatshazelwa ziimeko zendalo kunye nobonelelo kunye neemfuno zamazwe ngamazwe.Ngokufanayo, ipropylene oxide, ikloromethane kunye nezinye iimveliso zemichiza nazo zichatshazelwa ngamaxabiso e-oyile ekrwada kumazwe ngamazwe.Ekubeni izinto eziluhlaza zithatha umlinganiselo omkhulu kwisakhiwo seendleko ze-cellulose ether, ukuguquguquka kwexabiso lezinto ezibonakalayo kuchaphazela ngokuthe ngqo ixabiso lokuthengisa i-cellulose ether.
Ukuze ukwazi ukujamelana noxinzelelo lweendleko, abavelisi be-cellulose ether bahlala bedlulisela uxinzelelo kumashishini asezantsi, kodwa umphumo wokudluliselwa uchaphazelekayo kubunzima beemveliso zobugcisa, ukuhlukahluka kwemveliso kunye nenqanaba leendleko zemveliso kunye nexabiso elongezelelweyo.Ngokubanzi, amashishini anemiqobo ephezulu yobugcisa, iindidi zeemveliso ezityebileyo kunye nexabiso elongeziweyo eliphezulu aneenzuzo ezinkulu kwaye aya kugcina inqanaba lengeniso epheleleyo elizinzileyo.Kungenjalo, amashishini kufuneka ajongane noxinzelelo olukhulu lweendleko.Ukongeza, ukuba imeko yangaphandle ayizinzile kwaye uluhlu lokuguquguquka kwemveliso lukhulu, amashishini amashishini aluhlaza anyukayo azimisele ukukhetha abathengi abasezantsi kunye nomlinganiselo omkhulu wemveliso kunye namandla abanzi abanzi, ukwenzela ukuba kuqinisekiswe inzuzo yezoqoqosho ngexesha elifanelekileyo kunye nokunciphisa ingozi.Ke ngoko, oku kuthintela uphuhliso lwamashishini amancinci eselulosi ether ukuya kwinqanaba elithile.
I-ether ye-cellulose luhlobo lwendalo lwe-polymer ephuma kwi-polymer, ene-emulsification kunye neempawu zokumiswa.Kwiintlobo ezininzi, i-hydroxypropyl methyl cellulose ether eyi-HPMC sesona sivuno siphezulu, esona sisetyenziswa kakhulu, imveliso yayo ikhula ngokukhawuleza.
Ngenkqubela phambili eqhubekayo yesayensi kunye nobuchwepheshe, imakethi yemfuno esezantsi iyakhula, kwaye umda wesicelo osezantsi kulindeleke ukuba wande ngokuqhubekayo, kwaye imfuno esezantsi igcina ukukhula okuzinzile.Kwisakhiwo semarike esisezantsi se-cellulose ether, izinto zokwakha, ukukhutshwa kweoli, ukutya kunye nezinye iindawo zithatha indawo enkulu.Phakathi kwabo, icandelo lezinto zokwakha yeyona marike inkulu yabathengi, ibalwa ngaphezu kwe-30%.
Ishishini lokwakha lelona candelo likhulu lokusetyenziswa kweemveliso zeHPMC
Kwishishini lokwakha, iimveliso ze-HPMC zidlala ibhondi ebalulekileyo, ukugcinwa kwamanzi kunye nezinye iziphumo.Emva kokuxuba inani elincinci le-HPMC kunye nodaka lwesamente, i-viscosity, i-tensile kunye ne-shear amandla omdaka we-samente, i-mortar kunye ne-binder inokunyuswa, ukwenzela ukuba kuphuculwe ukusebenza kwezinto zokwakha, ukuphucula umgangatho wokwakha kunye nokusebenza kakuhle komatshini.Ukongeza, i-HPMC ikwayi-retarder ebalulekileyo kwimveliso kunye nokuthuthwa kwekhonkrithi yorhwebo, edlala indima ekutshixeni kwamanzi kunye nokuphucula iimpawu ze-rheological zekhonkrithi.Okwangoku, i-HPMC yeyona mveliso ibalulekileyo ye-cellulose ether esetyenziselwa ukwakha izinto zokutywina.
Ishishini lokwakha lelona shishini lingundoqo kuqoqosho lwelizwe lethu.Idatha ibonisa ukuba indawo yokwakha izindlu inyuke ukusuka kwi-7.08 yeebhiliyoni zeemitha zeemitha ngo-2010 ukuya kwi-14.42 yeebhiliyoni zeemitha zeemitha ngo-2019, iqhuba ngamandla ukukhula kwemarike ye-cellulose ether.
I-boom iyonke ye-real estate industry yathatha, kwaye indawo yokwakha kunye nentengiso yenyuka unyaka nonyaka.Idatha yoluntu ibonisa ukuba ngo-2020, ukuhla kwenyanga-ngonyaka kwindawo entsha yokwakha yezindlu zokuhlala zorhwebo kuyaqhubeka kuncinci, phantsi kwe-1.87% ngonyaka, i-2021 kulindeleke ukuba iqhubeke nendlela yokulungisa.Kwiinyanga ezimbini zokuqala zalo nyaka, izinga lokukhula kwendawo yokuhlala yezindlu zorhwebo libuyele kwi-104.9%, ukunyuka okuhloniphekileyo.
Ukwemba ioli
Imarike yeenkonzo zobunjineli bokomba ichatshazelwa ngakumbi lutyalo-mali lwe-E&P yehlabathi, malunga ne-40% yepotfoliyo yokuhlola yehlabathi inikezelwe kwiinkonzo zobunjineli bokomba.
Ngexesha lokugrumba ioyile kunye nokuveliswa, ulwelo lokomba ludlala indima ebalulekileyo ekuphatheni nasekumiseni iitshiphusi, ukomeleza iindonga zemingxuma kunye noxinzelelo lokubumba ukulinganisa, ukupholisa kunye nokuthambisa isuntswana, kunye nokuhambisa amandla e-hydrodynamic.Ngoko ke, kumsebenzi wokugaya ioli, kubaluleke kakhulu ukugcina umswakama ofanelekileyo, i-viscosity, i-fluidity kunye nezinye izibonakaliso zokugaya ulwelo.I-Polyanionic cellulose, okanye iPAC, inokujiya, igcobe amasuntswana, kwaye idlulise amandla e-hydrodynamic.Ngenxa yeemeko ezintsonkothileyo zejoloji yendawo yokugcina ioyile kunye nobunzima bokomba, kukho inani elikhulu leemfuno zokusetyenziswa kwePAC.
Ishishini lezinto ezinceda amayeza
I-non-ionic cellulose ethers isetyenziswa ngokubanzi kwishishini lamachiza njengezinto ezincedisa amayeza, ezifana ne-thickeners, dispersants, i-emulsifiers kunye nabasunguli befilimu.Isetyenziselwa ukugquma ifilimu kunye nokunamathelisa amacwecwe amayeza, kwaye ingasetyenziselwa ukumiswa, ukulungiswa kwamehlo, iipilisi ezidadayo kunye nokunye.Ngenxa yeemfuno ezingqongqo zokucoceka kunye ne-viscosity yeemveliso ze-cellulose ether yamayeza, inkqubo yokuvelisa inzima kwaye iinkqubo zokuhlamba zinzima kakhulu.Xa kuthelekiswa nezinye iimveliso ze-cellulose ether, izinga lokuqokelela liphantsi, ixabiso lemveliso liphezulu, kodwa ixabiso elongezelelweyo lemveliso liphezulu.Izinto ezincedisa amayeza zisetyenziswa ikakhulu kumalungiselelo ekhemikhali amayeza, iyeza lelungelo elilodwa lomenzi waseTshayina, iimveliso zebhayoloji kunye neekhemikhali kunye nezinye iimveliso zamayeza.
Ngenxa yokuba ushishino lwezixhobo ezincedisa amayeza luqale emva kwexesha, umgangatho wophuhliso uphantsi ngoku, indlela yoshishino ifuna ukuphuculwa ngakumbi.Phakathi kwexabiso lemveliso yamalungiselelo amayeza asekhaya, ixabiso lemveliso yamayeza asekhaya libalela umlinganiselo ophantsi we-2% -3%, ophantsi kakhulu kunalowo we-excipients amayeza angaphandle (malunga ne-15%).Kuyabonakala ukuba kusekho indawo enkulu yophuhliso lwezixhobo zamayeza zasekhaya, ekulindeleke ukuba ziqhube ngokufanelekileyo ukukhula kwemarike ye-cellulose ether efanelekileyo.
Ixesha lokuposa: Aug-31-2022