I-Putty iyinto yokwakha ebalulekile esetshenziselwa ukulinganisa udonga, futhi ukusebenza kwayo kuthinta ngqo ukunamathela kopende kanye nekhwalithi yokwakha. Ekwakhekeni kwe-putty, izithasiselo ze-cellulose ether zidlala indima ebalulekile.I-Hydroxypropyl Methylcellulose (HPMC), njengenye yama-ether e-cellulose asetshenziswa kakhulu, ingathuthukisa ngempumelelo i-viscosity, ukusebenza kokwakhiwa kanye nokuqina kwesitoreji se-putty.
1. Izakhiwo eziyisisekelo ze-Hydroxypropyl Methylcellulose
I-HPMC iyi-polymer encibilikayo emanzini engeyona i-ionic enokuqina okuhle, ukugcinwa kwamanzi, ukuhlakazeka, i-emulsification kanye nezakhiwo zokwakha ifilimu. I-viscosity yayo ithintwa yizinga lokushintsha, izinga le-polymerization kanye nezimo zokuncibilika. Isixazululo samanzi se-AnxinCel®HPMC sibonisa izici zoketshezi lwe-pseudoplastic, okungukuthi, lapho izinga lokugunda landa, i-viscosity yesisombululo iyancipha, okubalulekile ekwakhiweni kwe-putty.
2. Umphumela we-HPMC ekuqineni kwe-putty
2.1 Umphumela wokuqina
I-HPMC yakha isixazululo esinobuthi obukhulu ngemva kokuncibilika emanzini. Umphumela wayo wokujiya ubonakala kakhulu kulezi zici ezilandelayo:
Ukuthuthukisa i-thixotropy ye-putty: I-HPMC ingagcina i-putty isezingeni eliphezulu uma ingashintshi ukuze igweme ukugoba, futhi inciphise izinga lapho iklwebha futhi ithuthukisa ukusebenza kokwakhiwa.
Ukuthuthukisa ukusebenza kwe-putty: Inani elifanele le-HPMC lingathuthukisa ukugcotshwa kwe-putty, okwenza ukuklwebheka kube lula futhi kunciphise ukumelana nokwakhiwa.
Ukuthinta amandla okugcina e-putty: Umphumela wokujiya we-HPMC wenza i-filler kanye nezinto eziqinisayo ku-putty zihlakazeke ngokulinganayo, kugwenywe ukuhlukaniswa futhi kuthuthukiswe ukusebenza kokuqina ngemva kokwakhiwa.
2.2 Umphumela enqubweni yokumanzisa amanzi
I-HPMC inezakhiwo ezinhle kakhulu zokugcina amanzi, ezinganciphisa ukuhwamuka kwamanzi ngokushesha kungqimba lwe-putty, ngaleyo ndlela kwandise isikhathi sokumanzisa kwe-putty esekelwe kusimende futhi kuthuthukiswe amandla nokumelana nokuqhekeka kwe-putty. Kodwa-ke, i-viscosity ephezulu kakhulu ye-HPMC izothinta ukungena komoya kanye nesivinini sokomisa kwe-putty, okuholela ekunciphiseni ukusebenza kahle kokwakhiwa. Ngakho-ke, inani le-HPMC lidinga ukuqinisekisa ukusebenza kahle ngenkathi kugwenywa imiphumela emibi esikhathini sokuqina.
2.3 Ubudlelwano phakathi kwesisindo sama-molecule se-HPMC kanye ne-viscosity ye-putty
Uma isisindo sama-molecule se-HPMC siphakeme, kulapho i-viscosity yesisombululo sayo samanzi iba nkulu khona. Ku-putty, ukusetshenziswa kwe-HPMC ene-viscosity ephezulu (njengohlobo olune-viscosity engaphezu kuka-100,000 mPa·s) kungathuthukisa kakhulu ukugcinwa kwamanzi kanye nezakhiwo zokulwa nokuwa kwe-putty, kodwa futhi kungaholela ekwehleni kokusebenza kahle. Ngakho-ke, ngaphansi kwezidingo ezahlukene zokwakha, i-HPMC ene-viscosity efanele kufanele ikhethwe ukuze ilinganise ukugcinwa kwamanzi, ukusebenza kahle kanye nokusebenza kokugcina.
2.4 Umphumela womthamo we-HPMC ekuqineni kwe-putty
Inani le-AnxinCel®HPMC elingeziwe linomthelela omkhulu ekuqineni kwe-putty, futhi umthamo uvame ukuba phakathi kuka-0.1% no-0.5%. Uma umthamo we-HPMC uphansi, umphumela wokujiya ku-putty ulinganiselwe, futhi kungenzeka ungakwazi ukuthuthukisa ukusebenza kahle kanye nokugcinwa kwamanzi. Uma umthamo uphakeme kakhulu, i-viscosity ye-putty inkulu kakhulu, ukumelana nokwakhiwa kuyanda, futhi kungathinta isivinini sokomisa se-putty. Ngakho-ke, kubalulekile ukukhetha inani elifanele le-HPMC ngokwefomula ye-putty kanye nendawo yokwakha.
I-Hydroxypropyl methylcellulose idlala indima ekuqineni, ekugcinweni kwamanzi nasekuthuthukiseni ukusebenza kahle ku-putty. Isisindo sama-molecule, izinga lokufakwa esikhundleni kanye nenani lokwengezaI-HPMCkuzothinta i-viscosity ye-putty. Inani elifanele le-HPMC lingathuthukisa ukusebenza kanye nokumelana namanzi kwe-putty, kuyilapho ukwengeza ngokweqile kungandisa ubunzima bokwakha. Ngakho-ke, ekusetshenzisweni kwangempela kwe-putty, izici ze-viscosity kanye nezidingo zokwakha ze-HPMC kufanele kucatshangelwe ngokuphelele, futhi ifomula kufanele ilungiswe ngokufanele ukuze kutholakale ukusebenza okuhle kakhulu kokwakha kanye nekhwalithi yokugcina.
Isikhathi sokuthunyelwe: Feb-10-2025