Hydroxypropylmethylcelcelcelcelcelose

Amagqabantshintshi: Ibhekiswa kwi-HPMC, emhlophe okanye i-off-whifrous okanye umgubo wegranur. Zininzi iindlela zeselpulose kwaye zisetyenziswa kakhulu, kodwa sinxibelelana ikakhulu kubathengi kwimveliso yokwakha eyomileyo. Eyona nto ixhaphakileyo iselfowuni ibhekisa kwi-hypromellose.

INKQUBO YOKUGQIBELA Iyure, cinezela, ukuphupha i-sellese, kunye nenqanaba le-35 ℃, ukuze inqanaba le-polymerizazation ye-fiber efunyenweyo ingaphakathi kuluhlu olufunekayo. Beka i-alkali fibers kwi-ethertey, yongeza i-propylene oxide kunye ne-methyl chloride, kwaye uqinisekisile kwi-50-80 ° C kwiiyure ezi-5, kunye ne-MPA ephezulu malunga ne-1.8 MPA. Emva koko yongeza isixa esifanelekileyo se-hydrochloric acid kunye ne-oxcalic acid ukuya kumanzi ashushu kwi-90 ° C ukuhlamba izinto zokwandisa ivolumu. Ukupheliswa kwenkululeko kunye ne-centrifuge. Hlamba kude ungathathi hlangothi, kwaye xa umswakama okufumaniweyo ungaphantsi kwe-60%, yomisa ngomoya oshushu nge-130 ° C ukuya ngaphantsi kwe-5%. Umsebenzi: Ukugcinwa kwamanzi, ukuqina, i-Thixtropic Anti-SAG, i-Air-Preming yokusebenza, ukuseta kwakhona.

Ukugcinwa kwamanzi: Ukugcinwa kwamanzi yeyona ndawo ibaluleke kakhulu ye-ether yesellulose! Kwimveliso ye-pyppum gurr kunye nezinye izinto, isicelo se-selsulose i-Ether sibalulekile. Ukugcinwa kwamanzi aphezulu kunokusabela ngokupheleleyo kwi-Ash kunye ne-Calcium Gypsum (kokuphendula ngakumbi, amandla amakhulu). Phantsi kweemeko ezifanayo, ukuphakama kwe-viscosity ye-seluplose ether, engcono ukugcinwa kwamanzi (umsantsa ngaphezulu kwe-100,000 ye-viscosity incitshisiwe); Ithagethi ephezulu, eyona nto ibhetele yokugcinwa kwamanzi, ihlala isixa-mali esincinci se-tsersuese i-Ether inokuPhucula kakhulu ukusebenza komthetho. Iqondo lokugcina amanzi, xa umxholo ufikelela kwinqanaba elithile, imeko yokwanda kwamanqanaba okugcinwa kwamanzi iyahamba kancinci; Iqondo lokugcina amanzi le-ilese i-Ether ihlala incipha xa iqondo lobushushu elalingayo liyanda, kodwa ezinye zeeseli eziphakamileyo ze-gesene zinendlela engcono ngayo phantsi kweemeko zobushushu obuphezulu phantsi kweemeko zobushushu obuphezulu. Ukugcinwa kwamanzi. I-Interdincelion phakathi kweemolekyuli zamanzi kunye ne-seluplose the sucture tins zenza ukuba iimolekyuli zamanzi zingenise i-molesise ye-Ether i-Ethermose Ether i-Eteromolecular, yafumana amanzi akhululekileyo, kwaye iphucule ukugcinwa kwamanzi kwesamente.

Ukutyibilika, iThixtropic kunye ne-anti-sag: idlulisela i-viscofity entle kudaka olumanzi! Ingandonyusa kakhulu ukunamathela phakathi kodaka olumanzi kunye nomaleko, kwaye iphucule indlela yokulwa ngokuchasene nodaka. Iziphumo ezihlekisayo ze-selesese ye-selesese yazo nako ukonyusa ukunyangwa nokungabikho kwempahla entsha exubeneyo, ukuthintela ukulibaziseka kwempahla, ukwahlula kunye nokopha. Isiphumo sokuqaqamba kweselUSULESS KWI-CWEATE Izixhobo ezisekwe kwi-viscosity yezisombululo ze-seluplose. Phantsi kweemeko ezifanayo, ukuphakama kwe-viscosity ye-Teluplose Ether, kungcono uVenkile olwenziwe kwiSoftware, kodwa ukuba i-viscosity inkulu kakhulu, iya kuchaphazela ulwelo kwaye isebenza i-troul I-Scraper). inzima). Ukuziqhelanisa nokuziqokelela kunye nokuziqhelanisa nekhonkrithi efuna ulwelo oluphezulu lufuna i-viscofity ephantsi ye-Selese. Ukongeza, isiphumo esihlekisayo se-ether eseSelese, siya kwandisa iimfuno zamanzi ezinto ezisisiseko zesamente kunye nokukhulisa isivuno sodaka. Isisombululo se-vissosity seseli esiphezulu se-Etheeus Atheeus i-ThixitRopy ephezulu, ekwangumlinganiswa omkhulu we-ether yeseluplose. Aqueous solutions of cellulose generally have pseudoplastic, non-thixotropic flow properties below their gel temperature, but Newtonian flow properties at low shear rates. I-pseudoplasticistic inyuka ngokukhulisa ubunzima bemolekyuli okanye uxinzelelo lwe-seluplose. I-gals zesakhiwo isenziwa xa iqondo lobushushu linyuswa, kwaye ukuhamba okuphezulu kweTiixistropic kwenzeka. I-SelesUlose ebhaka kakhulu kunye ne-viscofitity ephantsi i-tixit ThutiXtropOpy nangaphantsi kweqondo lobushushu. Le ndawo yepropathi ixhamle kakhulu kulwakhiwo lokwakha lodaka ukuba luhlengahlengise ukwenziwa kwenqanaba kunye ne-SAG. Kuya kufuneka kuqatshelwe apha ukuphelisa i-vissose ye-ether, kungcono ukugcinwa kwamanzi, kodwa uphakamisa umthwalo we-vileculase ye-ether, kunye nokugaya kwayo ifuthe kuxinzelelo lokudakaswa kunye nokusebenza.

Isizathu: I-Telupelose Ether inomoya ongena moya ongenamoya kwizinto ezisekwe kwisamente. I-Teluplose Ether Ineqela le-hydrophilic (iqela le-hydroxyl, iqela le-ERE) kunye neqela le-hydrophobic (i-Mydrophobic Group (i-Methyl Group), i-riffiction), inesiphumo somphezulu, kwaye ke sinomsebenzi ongena moya. Iziphumo zokungenela umoya kwi-Ether Ither iya kuvelisa isiphumo se "Ibhola", enokuphucula ukusebenza kwempahla exutywe, njengokunyuka kweplasitiki kunye nokugungqa kodaka, oluyingenelo kudaka ; Iya kwandisa imveliso yodaka. , ukunciphisa iindleko zodaka; Kodwa iya kukhulisa ukutyeba kwezinto ezilukhuni kwaye inciphise iipropathi zayo zobuchwephesha ezinje ngamandla kunye namandla e-elastic. Njenge-surticament, i-selupelose ether ikwanomsebenzi omanzi okanye otyhafisayo kwii-subsentles, enamafutha ayo anyusa ulwakhiwo lwezixhobo ezisekwe, kodwa isiphumo sayo sokuqaqamba siya kunciphisa ulwelo. Iziphumo zokuhamba yindibaniselwano yokufaka iplastiki kunye neziphumo zokonwaba. Xa umxholo we-seluplose ether iphantsi kakhulu, ibonakaliswa njengeziphumo zeplastiki okanye ukunciphisa amanzi; Xa umxholo uphezulu, isiphumo esihlekisayo se-ether ese seluplose enyuka ngokukhawuleza, kwaye ifuthe laso elingena moya lidla ngokugculelwa, ke ukusebenza kwandiswa. Iziphumo zokonzakali okanye ukwanda kwemfuno yamanzi.

Ukuseta ukubuyiselwa: I-Selesese Ether inokulibazisa inkqubo ye-qumed. I-SelewUlose eunc ikhulisa udaka kwipropathi eyahlukeneyo elungileyo, kwaye inciphise i-hydrations yokuqala yesamente kunye nokulibazisa inkqubo ye-thydration yesamente yesamente. Oku akulunganga ku-purdor kwimimandla ebandayo. Olu hlengahlengiso lubangelwa yi-adsorvose yemolekyuli ye-etellose e-Iler kwiimveliso ze-hydication ezifana ne-csh kunye ne-ca (oh) 2. Ngenxa yokwanda kohlobo lwesisombululo se-Pore, i-Setesuse Ether inciphisa ukushukuma kwe-ion kwisisombululo, ngaloo ndlela silibazisa inkqubo ye-hydration. Ukugxininiswa okuphezulu kwe-cleculose i-ether kwizimbiwa ze-mineral, kokukhona kwangenisa ifuthe lokulibaziseka kwengubo. I-seluplose yathi ayinguye kuphela useto lwe-resick, kodwa ibuyise inkqubo yokuqina yesamente yesamente. Isiphumo sokubuyiselwa kweselselose Ether ixhomekeke kuphela kwingxaki yayo kwi-gelic ges, kodwa nakwimo yemichiza. Inqanaba eliphezulu lobume be-HMYIRT le-HMY, engcono isiphumo sokubuyiselwa kwe-seluplose ether. Iziphumo zokubuyela umva yomelele. Nangona kunjalo, i-vickosity ye-etelulose i-ether ayinampembelelo kwiikhilomitha ze-center. Ngokwanda kwe-selsulose ekuteleni, ukumiswa kwexesha lodaka kunyuka kakhulu. Kukho ukunxibelelana okuhle kwe-noliar phakathi kokuseta okokuqala kodaka kunye nomxholo we-Teluplose Ether, kunye nexesha lokugqibela lokuseta linomxholo olungileyo ngomxholo we-Teluplose. Singalawula ixesha lokusebenza kodaka ngokutshintsha komxholo we-seluplose ether. Kwimveliso, idlala indima yokugcinwa kwamanzi, ukuqaqamba, ukulibazisa amandla omzimba, kunye nokuphucula ukusebenza kokwakha. Umthamo wokugcina amanzi kakuhle wenza isamente yeGyppum Ash Calcium asabele ngokupheleleyo, anyuse amandla odaka, kwaye kwangaxeshanye unokuphucula amandla amanqam, kwaye kwangaxeshanye akwazi ukuphucula amandla okwakha kunye nokusebenza kakuhle. Ixesha elifihliweyo. Ukuphucula ukutshiza okanye ukupheliswa kodaka, kunye namandla olwakhiwo. Kwinkqubo yokwenyani, kuyimfuneko ukufumanisa uhlobo, i-viscofity, kunye nenani leselUlose ngokweemveliso ezahlukeneyo, imikhwa yokwakha, kunye nokusingqongileyo.


Ixesha leposi: UNV-15 ukuya ku-522