1. Isishwankathelo esisisiseko soshishino:
I-non-ionic cellulose ethers ibandakanya i-HPMC, i-HEC, i-MHEC, i-MC, i-HPC, njl., kwaye isetyenziswa kakhulu njengeejenti zokwenza ifilimu, i-binders, i-dipersants, i-agent egcina amanzi, i-thickeners, i-emulsifiers kunye ne-stabilizers, njl., isetyenziswa ngokubanzi kwiinkalo ezininzi ezifana neengubo, izinto zokwakha, iimveliso zemichiza yemihla ngemihla, ukuhlola ioli kunye negesi, amayeza, ukutya, i-textile, i-papermaking, njl.
Ionic cellulose ethers ikakhulu CMC kunye nemveliso yayo elungisiweyo PAC.Xa kuthelekiswa ne-non-ionic cellulose ethers, i-ionic cellulose ethers inokumelana nokushisa okuphantsi, ukuxhathisa ityuwa kunye nokuzinza, kwaye ukusebenza kwabo kuchaphazeleka kakhulu kwihlabathi langaphandle.Kwaye kulula ukusabela nge-Ca2 + equlethwe kwezinye iingubo kunye nezixhobo zokwakha ukuvelisa imvula, ngoko ke isetyenziswe ngaphantsi kwintsimi yezinto zokwakha kunye neengubo.Nangona kunjalo, ngenxa yokunyibilika kakuhle kwamanzi, ukutyeba, ukudityaniswa, ukubunjwa kwefilimu, ukugcinwa komswakama kunye nokuzinza kokusasazwa, kudityaniswa netekhnoloji yemveliso evuthiweyo kunye nexabiso eliphantsi lemveliso, isetyenziswa ikakhulu kwizicoci, i-oyile kunye nokuhlola igesi kunye nezongezo zokutya kunye nezinye iindawo. .
2. Imbali yophuhliso lweshishini:
① Imbali yoPhuhliso lwe-non-ionic cellulose industry ye-ether: Kwi-1905, i-etherification ye-cellulose yaqatshelwa okokuqala kwihlabathi, isebenzisa i-dimethyl sulfate kunye ne-alkali-swelled cellulose ye-methylation.I-Nonionic cellulose ethers yayinelungelo lobunikazi nguLilienfeld ngo-1912, kunye noDreyfus (1914) kunye noLeuchs (1920) bafumana i-ethers ye-cellulose e-soluble yamanzi kunye ne-oil-soluble cellulose, ngokulandelanayo.U-Hubert wenza i-HEC kwi-1920. Ekuqaleni kwe-1920, i-carboxymethylcellulose yayithengiswa eJamani.Ukususela kwi-1937 ukuya kwi-1938, iUnited States yaqaphela imveliso ye-MC kunye ne-HEC.Emva kowe-1945, ukuveliswa kwe-cellulose ether kwanda ngokukhawuleza eNtshona Yurophu, eUnited States naseJapan.Emva kweminyaka ephantse ibe yikhulu yophuhliso, i-non-ionic cellulose ether iye yaba yikhemikhali ekrwada esetyenziswa ngokubanzi kwihlabathi.
Kusekho i-gap ethile phakathi kwamazwe asaphuhlayo kunye namazwe aphuhlileyo ngokwenqanaba lenkqubo yokuvelisa kunye nemimandla yokusetyenziswa kwemveliso ye-non-ionic cellulose ethers.Ngokobuchwephesha bemveliso, amazwe asele ephuhlile anje ngeYurophu, uMntla Merika, kunye neJapan anobuchwephesha obuqolileyo ngokwentelekiso kunye nobugcisa, kwaye ubukhulu becala avelisa iimveliso ezikumgangatho ophezulu ezifana neengubo, ukutya namayeza;amazwe asakhasayo anemfuno enkulu CMC kunye HPMC, kwaye iteknoloji kunzima ukuveliswa kwemveliso cellulose ether kunye neemfuno eziphantsi ngokwentelekiso imveliso engundoqo, kwaye intsimi izinto zokwakha yeyona market yabathengi.
Ngokuphathelele kwimihlaba yesicelo, amazwe aphuhlileyo anje ngeYurophu ne-United States enze ikhonkco elipheleleyo neliqolileyo lemizi-mveliso kwiimveliso zabo ze-cellulose ether ngenxa yezinto ezifana nokuqaliswa kwangethuba kunye namandla e-R&D anamandla, kwaye izicelo ezisezantsi zigubungela imimandla emininzi uqoqosho lwesizwe;ngelixa amazwe asakhasayo Ngenxa yexesha elifutshane lophuhliso loshishino lwe-cellulose ether, umda wesicelo uncinci kunowamazwe aphuhlileyo.Nangona kunjalo, ngokuphuculwa kancinci kwinqanaba lophuhliso loqoqosho lwamazwe asakhasayo, ikhonkco lemizi-mveliso lithande ukufezekiswa, kwaye umda wesicelo uyaqhubeka usanda.
②HEC Imbali yophuhliso loshishino: I-HEC ibalulekile i-hydroxyalkyl cellulose kunye ne-ether ye-cellulose e-soluble yamanzi kunye nomthamo omkhulu wemveliso emhlabeni.
Ukusetyenziswa kwe-ethylene oxide engamanzi njenge-etherification agent ukulungiselela i-HEC yenze inkqubo entsha yokuveliswa kwe-cellulose ether.Itekhnoloji engundoqo efanelekileyo kunye nomthamo wemveliso ugxininiswe ikakhulu kubenzi beekhemikhali ezinkulu eYurophu, eMelika, eJapan naseMzantsi Korea.I-HEC kwilizwe lam yaqala ukuphuhliswa kwi-1977 yiWuxi Chemical Research Institute kunye neHarbin Chemical No.Nangona kunjalo, ngenxa yezinto ezifana nobuchwepheshe obungasemva kunye nozinzo olulambathayo lomgangatho wemveliso, ayiphumelelanga ukwenza ukhuphiswano olusebenzayo nabavelisi bamazwe ngamazwe.Kwiminyaka yakutshanje, abavelisi basekhaya njengeYin Ying New Materials baye baqhekeza ngokuthe ngcembe kwizithintelo zobugcisa, iinkqubo zokuvelisa eziphuculweyo, bakha amandla okuvelisa ubuninzi beemveliso ezisemgangathweni ozinzileyo, kwaye baqukwa kububanzi bokuthengwa ngabavelisi abasezantsi, ngokuqhubekayo bekhuthaza inkqubo yasekhaya. endaweni.
3. Iimpawu eziphambili zokusebenza kunye nenkqubo yokulungiselela i-non-ionic cellulose ether:
(1) Iimpawu eziphambili zokusebenza ze-non-ionic cellulose ether: izibonakaliso eziphambili zentsebenzo yeemveliso ze-cellulose ether ze-non-ionic ziyi-degree of substitution and viscosity, njl.
(2) Itekhnoloji yokulungiselela i-cellulose ether engeyiyo i-ionic: Kwinkqubo yokuvelisa i-cellulose ether, zombini i-cellulose eluhlaza kunye ne-ether ye-cellulose eyakhiwe ekuqaleni ikwimeko edibeneyo ye-multiphase.Ngenxa yendlela evuselelayo, umlinganiselo wezinto eziphathekayo kunye nefomu yezinto ekrwada, njl. Ukuthetha, i-ethers cellulose efunyenwe yi-heterogeneous reactions yonke i-inhomogeneous, kwaye kukho umahluko kwisithuba, ubuninzi kunye nokucoceka kwemveliso yamaqela e-ether, oko kukuthi, ifunyenwe. I-cellulose ethers zikwimixokelelwane eyahlukeneyo ye-cellulose ye-macromolecular, Inani kunye nokusasazwa kokutshintshwa kwamaqela ahlukeneyo e-glucose kwi-cellulose macromolecule efanayo kunye ne-C (2), i-C (3) kunye ne-C (6) kwiqela ngalinye leselulosi yahlukile.Indlela yokusombulula ingxaki yokutshintshwa ngokungafaniyo kuyisitshixo sokulawula inkqubo kwinkqubo yokuvelisa i-cellulose ether.
Ukushwankathela, unyango lwezinto eziluhlaza, i-alkalization, i-etherification, i-refining yokuhlamba kunye nezinye iinkqubo kwinkqubo yokuvelisa i-non-ionic cellulose ether zonke zineemfuno eziphezulu zokulungiselela iteknoloji, ulawulo lwenkqubo kunye nezixhobo zokuvelisa;kwangaxeshanye, ukuveliswa ngobuninzi kweemveliso ezikumgangatho ophezulu kufuna amava atyebileyo kunye nezakhono zombutho wemveliso osebenzayo.
4. Uhlalutyo lobume besicelo semarike:
Okwangoku, iimveliso ze-HEC zisetyenziswa kakhulu kwiinkalo zokugquma, iikhemikhali zemihla ngemihla kunye nokukhuselwa kwendalo, kodwa iimveliso ezinjalo ngokwazo zingasetyenziselwa kwezinye iindawo ezininzi ezifana nokutya, amayeza, ioli kunye nokuhlola igesi;Iimveliso ze-MHEC zisetyenziswa kakhulu kwintsimi yezinto zokwakha.
(1)Indawo yokugquma:
Izongezo zokugquma zezona zinto zibaluleke kakhulu kwiimveliso zeHEC.Xa kuthelekiswa namanye ama-ethers e-cellulose angenayo i-ionic, i-HEC ineenzuzo ezicacileyo njenge-additive coating: Okokuqala, i-HEC inozinzo oluhle lokugcina, olunokuphucula ngokufanelekileyo ukuhlaselwa kwe-biological enzymes kwiiyunithi ze-glucose ukuze kugcinwe ukuzinza kwe-viscosity, Qinisekisa ukuba i-coating ayiyi kuphumelela. ukubonakala delamination emva kwexesha lokugcina;okwesibini, i-HEC ine-solubility efanelekileyo, i-HEC inokuchithwa emanzini atshisayo okanye abandayo, kwaye inexesha elithile lokulibaziseka kwe-hydration xa ichithekile emanzini abandayo, kwaye ayiyi kubangela i-gel clustering, i-Dispersibility Good kunye ne-solubility;Okwesithathu, i-HEC inokuphuhliswa kakuhle kombala kunye nokungahambi kakuhle kunye nobuninzi bemibala, ukwenzela ukuba ipeyinti elungiselelwe ibe nombala omhle kunye nokuzinza.
(2)Indawo yemathiriyeli yokwakha:
Nangona i-HEC inokuhlangabezana neemfuno zezongezo ze-ether cellulose kwintsimi yezinto zokwakha, ngenxa yeendleko eziphezulu zokulungiselela, kunye neemfuno eziphantsi kakhulu kwiipropati zemveliso kunye nokusebenza kodaka kunye ne-putty xa kuthelekiswa neengubo, izinto zokwakha eziqhelekileyo zihlala zikhetha i-HPMC okanye i-MHEC. njengezongezo eziphambili ze-cellulose ether.Xa kuthelekiswa ne-HPMC, i-chemical structure ye-MHEC inamaqela amaninzi e-hydrophilic, ngoko ke izinzile kwiqondo lokushisa eliphezulu, oko kukuthi, inozinzo oluhle lwe-thermal.Ukongeza, xa kuthelekiswa nomgangatho wokwakha we-HPMC, inobushushu obuphezulu bejeli, kwaye ukugcinwa kwayo kwamanzi kunye nokubambelela kunamandla xa isetyenziswa kwiindawo eziphakamileyo zobushushu.
(3)Indawo yemichiza yemihla ngemihla:
I-cellulose ethers esetyenziswa ngokuqhelekileyo kwiikhemikhali zemihla ngemihla yi-CMC kunye ne-HEC.Xa kuthelekiswa ne-CMC, i-HEC ineenzuzo ezithile ekubambeni, ukuxhathisa i-solvent kunye nokuzinza.Umzekelo, i-CMC ingasetyenziselwa ukuncamathelisa kwiimveliso zemichiza zemihla ngemihla ngaphandle kwefomula ekhethekileyo eyongezelelweyo esebenzayo.Nangona kunjalo, i-anionic CMC inovelwano kwi-ion ephezulu yoxinaniso, eya kunciphisa ukusebenza kwe-CMC, kunye nokusetyenziswa kwe-CMC kwiimveliso zemichiza ezikhethekileyo zemihla ngemihla zilinganiselwe.Ukusebenzisa i-HEC njengoko i-binder iphucula ukusebenza kwe-binder ngokubhekiselele kwi-ion ephezulu yoxininiso, iphucula kakhulu ukuzinza kokugcinwa kweemveliso zemichiza yemihla ngemihla kunye nokwandisa ixesha lokugcina.
(4)Indawo yokhuseleko lokusingqongileyo:
Okwangoku, iimveliso ze-HEC zisetyenziswa kakhulu kwi-adhesives kunye nezinye iindawo ze-honeycomb carrier carrier.I-honeycomb carrier ye-ceramic isetyenziswa kakhulu kwinkqubo yokukhupha emva kokunyanga kweenjini zokutsha zangaphakathi ezifana neemoto kunye neenqanawa, kwaye idlala indima yonyango lwegesi yokukhupha ukuhlangabezana nemigangatho yokukhutshwa.
5. Imo yemarike yangoku ekhaya nakwamanye amazwe:
(1)Isishwankathelo semarike ye-nonionic cellulose ether yehlabathi:
Ngokombono wokusasazwa kwamandla emveliso yehlabathi, i-43% yemveliso ye-cellulose ye-ether yehlabathi jikelele ngo-2018 ivela e-Asia (i-China yayibalelwa kwi-79% yemveliso yase-Asia), iNtshona Yurophu yayibalelwa kwi-36%, kwaye uMntla Melika ubalwa kwi-8%.Ukususela kumbono wemfuno yehlabathi jikelele ye-cellulose ether, ukusetyenziswa kwehlabathi kwe-cellulose ether kwi-2018 malunga ne-1.1 yezigidi zeetoni.Ukususela kwi-2018 ukuya kwi-2023, ukusetyenziswa kwe-cellulose ether kuya kukhula kumyinge wonyaka we-2.9%.
Phantse isiqingatha sokusetyenziswa kwe-cellulose ether yehlabathi iyonke i-ionic cellulose (emelwe yi-CMC), esetyenziswa kakhulu kwi-detergents, i-oilfield additives kunye nezongezo zokutya;malunga nesinye kwisithathu i-non-ionic methyl cellulose kunye nezinto eziphuma kuyo (emelwe yi-HPMC), kunye nesinye kwisithandathu esiseleyo yi-hydroxyethyl cellulose kunye ne-derivatives kunye nezinye i-cellulose ethers.Ukukhula kwemfuno ye-non-ionic cellulose ethers iqhutywa ikakhulu zizicelo kwimimandla yezixhobo zokwakha, iingubo, ukutya, amayeza, kunye neekhemikhali zemihla ngemihla.Ngokwembono yokusasazwa kwengingqi kwimarike yabathengi, imakethi yaseAsia yeyona marike ikhula ngokukhawuleza.Ukusukela ngo-2014 ukuya ku-2019, isantya sokukhula sonyaka esihlanganisiweyo semfuno ye-cellulose ether e-Asia ifikelele kwi-8.24%.Phakathi kwazo, eyona mfuno iphambili e-Asiya ivela e-China, ibala i-23% yemfuno yehlabathi jikelele.
(2)Ushwankathelo lwemarike yasekhaya engeyiyo ionic cellulose ether:
E-China, i-ionic cellulose ethers emelwe yi-CMC yaphuhliswa ngaphambili, isenza inkqubo yemveliso ekhulileyo kunye nomthamo omkhulu wemveliso.Ngokwedatha ye-IHS, abavelisi baseTshayina bathathe phantse isiqingatha somthamo wemveliso yehlabathi yeemveliso ezisisiseko ze-CMC.Uphuhliso lwe-non-ionic cellulose ether luqale kade kwilizwe lam, kodwa isantya sophuhliso siyakhawuleza.
Emva kweminyaka yophuhliso, imakethi yaseTshayina ye-non-ionic cellulose ether yenze inkqubela enkulu.Ngo-2021, umthamo owenziweyo wemveliso yezinto zokwakha-ibakala le-HPMC liya kufikelela kwiitoni ze-117,600, imveliso iya kuba yi-104.300 yeetoni, kwaye umthamo wokuthengisa uya kuba neetoni ezingama-97,500.Izinga elikhulu lemizi-mveliso kunye neenzuzo zasekhaya ziye zafikelela endaweni yasekhaya.Nangona kunjalo, kwiimveliso ze-HEC, ngenxa yokuqalisa kade kwe-R&D kunye nemveliso kwilizwe lam, inkqubo yemveliso entsonkothileyo kunye nemiqobo ephezulu yobugcisa, umthamo wangoku wemveliso, imveliso kunye nomthamo wentengiso yeemveliso zasekhaya zeHEC zincinci.Nangona kunjalo, kwiminyaka yakutshanje, njengoko amashishini asekhaya eqhubeka nokwandisa utyalo-mali kuphando kunye nophuhliso, ukuphucula inqanaba lethekhnoloji kunye nokuphuhlisa ngokusebenzayo abathengi abasezantsi, imveliso kunye nokuthengisa kuye kwanda ngokukhawuleza.Ngokutsho kwedatha evela kwiChina Cellulose Industry Association, ngo-2021, amashishini amakhulu asekhaya iHEC (ebandakanyiweyo kwizibalo zombutho woshishino, yonke injongo) inomthamo oyilelweyo wemveliso yeetoni ezingama-19,000, imveliso yeetoni ezingama-17,300, kunye nomthamo wokuthengisa we-16,800. iitoni.Phakathi kwabo, amandla okuvelisa anyuke ngo-72.73% ngonyaka xa kuthelekiswa no-2020, imveliso yanda ngo-43.41% ngonyaka, kwaye umthamo wokuthengisa unyuke nge-40.60% ngonyaka.
Njengokongeza, umthamo wokuthengisa we-HEC uchatshazelwa kakhulu yimfuno yeemarike ezisezantsi.Njengeyona ndawo ibalulekileyo yesicelo se-HEC, imboni yokugquma inobudlelwane obuqinileyo kunye neshishini le-HEC ngokwemveliso kunye nokuhanjiswa kweemarike.Ukusuka kwimbono yokusasazwa kweemarike, imarike yorhwebo yokugquma isasazwa ikakhulu eJiangsu, eZhejiang naseShanghai eMpuma China, eGuangdong eMzantsi China, kunxweme olukumazantsi mpuma, naseSichuan kuMazantsi-ntshona eTshayina.Phakathi kwabo, imveliso yokwaleka eJiangsu, eZhejiang, eShanghai naseFujian ibalelwa malunga ne-32%, kwaye eMzantsi China naseGuangdong ibalelwa kwi-20%.5 ngasentla.Imarike yeemveliso zeHEC igxile kakhulu eJiangsu, Zhejiang, Shanghai, Guangdong naseFujian.I-HEC okwangoku isetyenziswa kakhulu kwiingubo zokwakha, kodwa ifanelekile kuzo zonke iintlobo zeengubo ezisekelwe emanzini ngokweempawu zayo zemveliso.
Ngo-2021, isiphumo sonyaka se-coatings yase-China kulindeleke ukuba sibe malunga ne-25.82 yezigidi zeetoni, kwaye imveliso ye-architectural coatings kunye ne-industry yemizi-mveliso iya kuba yi-7.51 yezigidi zeetoni kunye ne-18.31 yezigidi zeetoni ngokulandelelana.Iingubo ezenziwe ngamanzi ngoku zimalunga ne-90% yeeteyiphu zokwakha, kwaye malunga ne-25%, kuqikelelwa ukuba imveliso yepeyinti esekelwe emanzini kwilizwe lam ngo-2021 iya kuba malunga ne-11.3365 yezigidi zeetoni.Ngokwethiyori, inani le-HEC elongeziweyo kwiipeyinti ezisekelwe emanzini yi-0.1% ukuya kwi-0.5%, ibalwa kumyinge we-0.3%, icinga ukuba zonke iipeyinti ezisekelwe emanzini zisebenzisa i-HEC njengesongezo, imfuno yesizwe ye-HEC yepeyinti yepeyinti imalunga 34,000 iitoni.Ngokusekwe kwimveliso yokugquma yehlabathi iyonke ye-97.6 yezigidi zeetoni ngo-2020 (apho i-architectural coatings ithatha i-58.20% kunye ne-industrial coatings akhawunti ye-41.80%), imfuno yehlabathi yokugquma ibakala le-HEC iqikelelwa malunga ne-184,000 yeetoni.
Ukushwankathela, okwangoku, isabelo semarike somgangatho we-HEC wabakhiqizi basekhaya e-China sisaphantsi, kwaye isabelo semarike yasekhaya sihlala ikakhulu ngabavelisi bamazwe ngamazwe abamelwe yi-Ashland yase-United States, kwaye kukho indawo enkulu yasekhaya. endaweni.Ngokuphuculwa komgangatho wemveliso ye-HEC yasekhaya kunye nokwandiswa komthamo wemveliso, iya kukhuphisana ngakumbi nabavelisi bamazwe ngamazwe kumhlaba osezantsi omelwe ziingubo.Ukutshintshwa kwekhaya kunye nokhuphiswano lwemarike yamazwe ngamazwe luya kuba yeyona ndlela yophuhliso yolu shishino kwixesha elithile kwixesha elizayo.
Ixesha lokuposa: Apr-01-2023