I-PuTTY iyinto ebalulekile yokwakha esetshenziselwa ukulinganisa udonga, futhi ukusebenza kwayo kuthinta ngqo ukunamathela kopende nekhwalithi yokwakha. Ekwakhiweni kwamaPutty, ama-cellulose ether akwengeza adlala indima ebalulekile.I-Hydroxypropyl methylcellulose (HPMC), njengenye yezithako ezisetshenziswa kakhulu i-cellulose, ingathuthukisa ngempumelelo ukubonwa, ukusebenza kokwakha kanye nokuqina kwesitoreji se-putty.
1. Izakhiwo eziyisisekelo ze-hydroxypropylllylyll methylcellulose
I-HPMC iyi-polymer enikezelanayo engeyona eye-nionmer ngokuqina okuhle, ukugcinwa kwamanzi, ukusakazeka, ukuhlukaniswa kwe-emulsation kanye nezakhiwo ezenziwe ngefilimu. I-viscosity yayo ithintwa yizinga lokufaka esikhundleni, degree of polymerization kanye nezimo ze-solubelity. Isixazululo esinamanzi seCezinCel®HPMC sibonisa izici ze-pseudoplastic fluid, okungukuthi, lapho izinga le-shear likhuphuka, ukubonakala kwesixazululo kuncipha, okubalulekile ekwakhiweni kwe-putty.
2. Umphumela we-HPMC ku-Putty Viscosity
2.1 Umphumela wokuqina
I-HPMC yakha isixazululo esiphezulu sekhambi ngemuva kokuncibilika emanzini. Umphumela wayo wokuqina uboniswa ikakhulukazi kulezi zinto ezilandelayo:
Ukwenza ngcono i-Thixotropy ye-Putty: I-HPMC ingagcina i-putty ekubonakaleni okuphezulu lapho imayole ukugwema ukugcwala, futhi inciphise ukubonwa lapho esongela ukusebenza.
Ukuthuthukisa ukusebenza kwe-Putty: Inani elifanele le-HPMC lingathuthukisa ukugcotshwa kwama-tutty, okwenza ukuklwebhula futhi kunciphise ukumelana kokwakha.
Ukuthinta amandla okugcina we-putty: Umphumela wokuqina we-HPMC wenza i-filler kanye ne-cemential shop ku-putty ehlakazekile, ukugwema ukuhlukaniswa nokwenza ngcono ukusebenza okunzima ngemuva kokwakhiwa.
2.2 Umphumela kwinqubo ye-hydration
I-HPMC inezakhiwo ezinhle kakhulu zokugcina amanzi, ezinganciphisa ukuhwamuka okusheshayo kwamanzi ku-tutty ureyer, ngaleyo ndlela kukhule isikhathi sokukhulisa usimende-esekwe u-pumendeng tument kanye nokwenza ngcono amandla nokuqhekeka kokuqhekeka kwe-putty. Kodwa-ke, ukubonwa okuphezulu kakhulu kwe-HPMC kuzothinta ukuvumela komoya kanye nesivinini sokomiswa kwe-putty, okuholela ekunciphiseni ukusebenza kwezokwakha. Ngakho-ke, inani le-HPMC lidinga ukuqinisekisa ukusebenziseka ngenkathi ligwema imiphumela emibi ngesikhathi esinzima.
2.3 ubudlelwano phakathi kwesisindo se-molecular se-hpmc kanye nokubonakala kwe-putty
Isisindo se-molecular se-HPMC, lapho kukhuphuka khona okukhulu kwesisombululo salo esinamanzi. Ku-tutty, ukusetshenziswa kwe-high-viscosity hpmc (efana nohlobo olune-viscontshity olungaphezulu kwama-nta- 000) kungathuthukisa kakhulu ukugcinwa kwamanzi nezindawo zokulwa nama-putty, kepha kungahle kuholele ekunciphiseni kokusebenza . Ngakho-ke, ngaphansi kwezidingo ezahlukahlukene zokwakha, i-HPMC enokubonakala okufanele kufanele kukhethwe ukulinganisa ukugcinwa kwamanzi, ukusebenziseka kanye nokusebenza kokugcina.
2.4 Umphumela we-HPMC umthamo we-putty viscosity
Inani leCofincal®HPMC elingeziwe linethonya elikhulu ekubonakaleni kwe-putty, futhi umthamo uvame phakathi kuka-0,1% no-0.5%. Lapho umthamo we-HPMC uphansi, umphumela wokuqina ku-putty ulinganiselwe, futhi kungenzeka ungakwazi ukuthuthukisa ukusebenza ngempumelelo nokugcinwa kwamanzi. Lapho umthamo uphezulu kakhulu, ukubonakala kwe-putty kukhulu kakhulu, ukumelana kokwakha kwanda, futhi kungathinta ijubane lokusoma le-putty. Ngakho-ke, kuyadingeka ukuthi ukhethe inani elifanele le-HPMC ngokuya ngefomula ye-putty kanye nemvelo yokwakha.
I-Hydroxypropyllylylylylylylyllose idlala indima ekuphakameni, ukugcinwa kwamanzi kanye nokwenza ngcono ukusebenziseka ku-tutty. Isisindo samangqamuzana, izinga lokufaka esikhundleni kanye nenani lokungezelelaI-HPMCkuzothinta ukubonakala kwe-putty. Inani elifanele le-HPMC lingathuthukisa ukusebenza nokumelana kwamanzi kwe-putty, kuyilapho kungezelelwa ngokweqile kungakhulisa ubunzima bokwakha. Ngakho-ke, ekusetshenzisweni kwangempela kwe-putty, izimfanelo ze-viscosity kanye nezidingo zokwakha ze-HPMC kufanele zibhekwe ngokugcwele, futhi ifomula kufanele ilungiswe kahle ukuthola ukusebenza okuhle kokwakha kanye nekhwalithi yokugcina.
Isikhathi sePosi: Feb-10-2025