I-Putty sisixhobo sokwakha esibalulekileyo esisetyenziselwa ukulinganisa udonga, kwaye ukusebenza kwayo kuchaphazela ngokuthe ngqo ukunamathela kwepeyinti kunye nomgangatho wolwakhiwo. Ekwenzeni i-putty, izongezo ze-cellulose ether zidlala indima ebalulekileyo.IHydroxypropyl Methylcellulose (HPMC), njengenye yee-ethers ze-cellulose ezisetyenziswa kakhulu, inokuphucula ngempumelelo i-viscosity, ukusebenza kolwakhiwo kunye nokuzinza kokugcinwa kwe-putty.
1. Iipropati ezisisiseko zeHydroxypropyl Methylcellulose
I-HPMC yi-polymer enyibilikayo emanzini engeyiyo i-ionic enokuqina okuhle, ukugcinwa kwamanzi, ukusasazeka, i-emulsification kunye neempawu zokwenza ifilimu. I-viscosity yayo ichaphazeleka linqanaba lokutshintshwa, inqanaba le-polymerization kunye neemeko zokunyibilika. Isisombululo samanzi se-AnxinCel®HPMC sibonisa iimpawu zolwelo lwe-pseudoplastic, oko kukuthi, xa izinga lokucheba linyuka, i-viscosity yesisombululo iyancipha, nto leyo ibalulekileyo ekwakhiweni kwe-putty.
2. Impembelelo ye-HPMC kwi-viscosity ye-putty
2.1 Isiphumo sokuqina
I-HPMC yenza isisombululo esinoburhabaxa obuphezulu emva kokunyibilika emanzini. Isiphumo sayo sokutyeba sibonakala kakhulu kwezi zinto zilandelayo:
Ukuphucula i-thixotropy ye-putty: I-HPMC ingayigcina i-putty ikwi-viscosity ephezulu xa ingashukumi ukuze iphephe ukugoba, kwaye inciphise i-viscosity xa ikrwela kwaye iphucula ukusebenza kolwakhiwo.
Ukuphucula ukusebenza kwe-putty: Ubungakanani obufanelekileyo be-HPMC bunokuphucula ukutyeba kwe-putty, okwenza ukukrwela kube lula kwaye kunciphise ukumelana nokwakhiwa.
Ichaphazela amandla okugqibela e-putty: Isiphumo sokutyeba se-HPMC senza ukuba isizalisi kunye nezinto ezisimende kwi-putty zisasazeke ngokulinganayo, ziphephe ukwahlulwahlulwa kwaye ziphucule ukusebenza kokuqina emva kokwakhiwa.
2.2 Impembelelo kwinkqubo yokufunxa amanzi emzimbeni
I-HPMC ineempawu ezintle zokugcina amanzi, ezinokunciphisa ukufuma kwamanzi ngokukhawuleza kumaleko we-putty, ngaloo ndlela yandisa ixesha lokufuma kwe-putty esekelwe kwisamente kwaye iphucule amandla kunye nokumelana nokuqhekeka kwe-putty. Nangona kunjalo, i-viscosity ephezulu kakhulu ye-HPMC iya kuchaphazela ukungena komoya kunye nesantya sokomisa kwe-putty, nto leyo ekhokelela ekunciphiseni ukusebenza kakuhle kolwakhiwo. Ke ngoko, ubungakanani be-HPMC kufuneka buqinisekise ukusebenza kakuhle ngelixa kuthintelwa iziphumo ezimbi kwixesha lokuqina.
2.3 Ubudlelwane phakathi kobunzima be-molecular ye-HPMC kunye ne-viscosity ye-putty
Okukhona ubunzima be-molecular ye-HPMC buphezulu, kokukhona i-viscosity yesisombululo sayo samanzi iba nkulu. Kwi-putty, ukusetyenziswa kwe-HPMC ene-viscosity ephezulu (njengohlobo olune-viscosity engaphezulu kwe-100,000 mPa·s) kunokuphucula kakhulu ukugcinwa kwamanzi kunye neepropati zokungatyibiliki kwe-putty, kodwa kunokukhokelela ekunciphiseni ukusebenza. Ke ngoko, phantsi kweemfuno ezahlukeneyo zokwakha, i-HPMC ene-viscosity efanelekileyo kufuneka ikhethwe ukuze ilinganise ukugcinwa kwamanzi, ukusebenza kunye nokusebenza kokugqibela.
2.4 Impembelelo yedosi ye-HPMC kwi-viscosity ye-putty
Ubungakanani be-AnxinCel®HPMC obongeziweyo bunempembelelo enkulu kwi-viscosity ye-putty, kwaye idosi idla ngokuba phakathi kwe-0.1% kunye ne-0.5%. Xa idosi ye-HPMC iphantsi, isiphumo sokutyeba kwi-putty sincinci, kwaye isenokungakwazi ukuphucula ukusebenza kakuhle kunye nokugcinwa kwamanzi. Xa idosi iphezulu kakhulu, i-viscosity ye-putty inkulu kakhulu, ukumelana nokwakhiwa kwayo kuyanda, kwaye inokuchaphazela isantya sokomisa se-putty. Ke ngoko, kuyimfuneko ukukhetha ubungakanani obufanelekileyo be-HPMC ngokwefomula ye-putty kunye nendawo yokwakha.
I-Hydroxypropyl methylcellulose idlala indima ekuqineni, ukugcinwa kwamanzi kunye nokuphucula ukusebenza kakuhle kwi-putty. Ubunzima be-molecular, inqanaba lokutshintshwa kunye nobungakanani bokongezaI-HPMCkuya kuchaphazela i-viscosity ye-putty. Ubungakanani obufanelekileyo be-HPMC bunokuphucula ukusebenza kunye nokumelana namanzi kwe-putty, ngelixa ukongezwa okugqithisileyo kunokunyusa ubunzima bokwakha. Ke ngoko, ekusetyenzisweni kwe-putty, iimpawu ze-viscosity kunye neemfuno zokwakha ze-HPMC kufuneka ziqwalaselwe ngokupheleleyo, kwaye ifomula kufuneka ilungiswe ngokufanelekileyo ukuze kufunyanwe ukusebenza kokwakha okugqwesileyo kunye nomgangatho wokugqibela.
Ixesha leposi: Februwari-10-2025