Indima ye-hydroxypropyl isitashi ether odakeni

I-akhawunti yomphakathi ye-WeChat ivamise ukuphusha okuqukethwe okuningi kwekhwalithi ephezulu njengokuhlangenwe nakho kobuchwepheshe, izintengo ze-cellulose zempahla eluhlaza, amathrendi emakethe, izaphulelo, njll., futhi inikeza izindatshana zochwepheshe nge-putty powder, udaka nezinye izinto zokusetshenziswa zamakhemikhali zokwakha! Silandele!

Isingeniso se-Starch Ether

Izitashi ezivame kakhulu nezisetshenziswa kakhulu yisitashi samazambane, isitashi se-tapioca, isitashi sombila, isitashi sikakolweni, nesitashi sokusanhlamvu esinamafutha aphezulu kanye nokuqukethwe kwamaprotheni. Isitashi sezimpande zezimpande ezifana namazambane kanye ne-tapioca isitashi simsulwa kakhulu.

Isitashi siyinhlanganisela ye-polysaccharide macromolecular eyakhiwe yi-glucose. Kunezinhlobo ezimbili zama-molecule, aqondile futhi anegatsha, abizwa ngokuthi i-amylose (okuqukethwe okungu-20%) kanye ne-amylopectin (okuqukethwe cishe ngama-80%). Ukuze kuthuthukiswe ukusetshenziswa kwezakhiwo zesitashi ezintweni zokwakha, kungashintshwa ngezindlela ezingokwenyama namakhemikhali ukwenza izakhiwo zayo zifaneleke kakhulu izidingo zezinto zokwakha ngezinhloso ezahlukene. I-Hydroxypropyl isitashi ether

Indima yesitashi ether odakeni

Ngomkhuba wamanje wokwanda kwendawo yamathayili, ukwengeza isitashi ether kungathuthukisa ukumelana nokushelela kokunamathela kwethayela.

amahora okuvula anwetshiwe

Ngezinto zokunamathisela zamathayili, zingahlangabezana nezidingo zokunamathisela okukhethekile kwamathayela (I-Class E, i-20min enwetshwe ku-30min ukuze ifinyelele ku-0.5MPa) enweba isikhathi sokuvula.

Izakhiwo zangaphezulu ezithuthukisiwe

Isitashi i-ether singenza ingaphezulu lesisekelo segypsum nosimende bushelelezi, kube lula ukulisebenzisa, futhi linomphumela omuhle wokuhlobisa. Kubaluleke kakhulu ukuplasta udaka nodaka oluncane lokuhlobisa olufana ne-putty.

Indlela yokusebenza yesitashi ether

Lapho isitashi se-ether sincibilika emanzini, sizohlakazwa ngokulinganayo ohlelweni lodaka lukasimende. Njengoba i-molecule ye-starch ether inesakhiwo senethiwekhi futhi ikhokhiswa kabi, izodonsa izinhlayiya zikasimende ezikhokhiswa kahle futhi isebenze njengebhuloho lenguquko ukuxhuma usimende, ngaleyo ndlela inikeze Inani elikhulu lesivuno se-slurry lingathuthukisa i-anti-sag noma i-anti- ukushelela.

Umehluko phakathi kwe-starch ether ne-cellulose ether

(1) I-ether yesitashi ingathuthukisa ngempumelelo ukusebenza kwe-anti-sag ne-anti-slip of mortar, kuyilapho i-cellulose ether ngokuvamile ingathuthukisa i-viscosity nokugcinwa kwamanzi kwesistimu kodwa ayikwazi ukuthuthukisa ukusebenza kwe-anti-sag kanye ne-anti-slip.

(2) ukuqina kanye ne-viscosity

Ngokuvamile, i-viscosity ye-cellulose ether icishe ibe amashumi ezinkulungwane, kuyilapho i-viscosity yesitashi ether ingamakhulu amaningana kuya ezinkulungwaneni ezimbalwa, kodwa lokhu akusho ukuthi ukuqina kwempahla yesitashi ether kuya kudaka ayilungile njengaleyo ye-cellulose ether, futhi indlela yokuqina kokubili ihlukile.

(3) Uma kuqhathaniswa ne-cellulose, isitashi se-ether singakhuphula ngokuphawulekayo inani lesivuno sokuqala sokunamathela kuthayela, ngaleyo ndlela kuthuthukiswe ukusebenza kokulwa nokushelela.

(4) Ukungena emoyeni

I-Cellulose ether inendawo eqinile yokungenisa umoya, kuyilapho isitashi ether singenayo indawo yokungenisa umoya.

(5) Isakhiwo samangqamuzana e-cellulose ether

Nakuba kokubili isitashi kanye ne-cellulose kwakhiwa ama-molecule e-glucose, izindlela zabo zokuqamba zihlukile. Wonke ama-molecule e-glucose kusitashi ahlelwe ngendlela efanayo, kuyilapho i-cellulose ihluke kakhulu. Zonke eziseduze Ukuma kwama-molecule e-glucose kuphambene, futhi lo mehluko wesakhiwo ubuye unqume umehluko wezakhiwo ze-cellulose nesitashi.

Isiphetho: Uma i-cellulose ether ne-starch ether kusetshenziswa ngokuhlangene, umphumela omuhle we-synergistic ungenzeka. Ukuhlola kufakazele ukuthi ukusebenzisa isitashi se-ether esikhundleni sika-20% -30% we-cellulose ether odakeni akukwazi ukunciphisa umthamo wokugcinwa kwamanzi wesistimu yodaka, futhi kungathuthukisa ngempumelelo ikhono lokulwa ne-sag kanye ne-anti-slip.