Ukukhetha i-viscosity efanelekileyo ye-Hydroxypropyl Methylcellulose (HPMC) yokuvelisa i-putty powder udaka olomileyo lubalulekile ekuqinisekiseni ukusebenza kakuhle kunye neempawu zokusetyenziswa kwemveliso yokugqibela. Olu khetho luchaphazela iipropati ezininzi, kubandakanywa ukugcinwa kwamanzi, ukusebenza, ukunamathela, kunye nexesha elivulekileyo. Nasi isikhokelo esibanzi sokukunceda uqonde kwaye ukhethe i-viscosity efanelekileyo ye-HPMC kwimveliso yakho yodaka eyomileyo yomgubo.
Ukuqonda HPMC
I-Hydroxypropyl Methylcellulose (HPMC) yi-ether ye-cellulose engeyiyo ionic eyenziwe kwi-cellulose ye-polymer yendalo ngokusebenzisa uchungechunge lweenkqubo zemichiza. Isebenza njenge-thickener, i-binder, ifilimu-yangaphambili, kunye ne-arhente yokugcina amanzi kwi-formulation yodaka olomileyo.
Imisebenzi ephambili ye-HPMC kwi-Dry Mortar
Ukugcinwa kwamanzi: Ukuqinisekisa ukufakwa kwamanzi okwaneleyo kwesamente kunye nekalika, ukuphucula ukusebenza kunye nokunciphisa ukuqhekeka.
Ukuqina: Ukuphucula i-viscosity, igalelo ekusebenzeni ngcono kunye nokuzinza kodaka.
Ukuncamathela: Ukwandisa ukomelela kodaka kwisubstrates.
Ukusebenziseka: Ichaphazela ukukhululeka kwesicelo kunye nokugudiswa kokugqiba.
Ixesha lokuvula: Yandisa ixesha apho udaka luhlala lusebenza emva kokuxutywa namanzi.
Izinto ekufuneka ziqwalaselwe xa ukhetha i-HPMC Viscosity
IiMfuno zesicelo:
Wall Putty: Ifuna ibhalansi phakathi kokusebenza kunye nokugcinwa kwamanzi. Ngokuqhelekileyo, i-viscosity ephakathi i-HPMC (50,000 ukuya kwi-100,000 mPa.s) ifanelekile.
I-Tile Adhesives: I-viscosity ephezulu (i-100,000 ukuya kwi-200,000 mPa.s) iyadingeka ukuze kube ngcono ukubambelela kunye nokuxhatshazwa kwe-slip.
I-Skim Coat: I-viscosity esezantsi ukuya ephakathi (20,000 ukuya kwi-60,000 mPa.s) ukwenzela ukusetyenziswa okugudileyo kunye nokugqiba.
Imiqathango yokusingqongileyo:
Ubushushu kunye nokufuma: I-viscosity ephezulu ye-HPMC inokubonelela ngokugcinwa kwamanzi okungcono kwiimeko ezishushu nezomileyo, ukuqinisekisa ukusebenza okude kunye nokunciphisa ukomisa kwangaphambi kwexesha.
Iimpawu zeMathiriyeli esisiseko:
I-Porosity kunye ne-Absorption Rate: Kwii-substrates ezifunxa kakhulu, i-viscosity ephezulu ye-HPMC inceda ekugcineni ukufuma ixesha elide, ikhusela ukoma okukhawulezayo kunye nokuqinisekisa ukunamathela okungcono.
Iinkcazelo Ngeempawu Zokusebenza Ezifunekayo:
Ukusebenza: I-viscosity ephezulu ye-HPMC ibonelela ngokungaguquguqukiyo, okunokuphucula ukukhululeka kokusasazeka kunye nokunciphisa ukuthoba.
Ixesha elivuliweyo: Ixesha elide elivulekileyo liyanqweneleka kwizicelo ezinkulu okanye imozulu eshushu, enokufezekiswa nge-viscosity ephezulu ye-HPMC.
I-Sag Resistance: I-viscosity ephezulu ibonelela ngokuxhathisa kwe-sag, ibalulekile kwizicelo ezithe nkqo.
Amanyathelo asebenzayo ekukhetheni i-HPMC Viscosity
NONE
Qinisekisa ukuba imveliso yeyodonga lwe-putty, i-adhesive tile, okanye i-skim coat.
Qonda iimfuno ezithile ezifana nokugcinwa kwamanzi, ukunamathela, kunye nexesha elivulekileyo.
Uvavanyo lwaseLab:
Yenza iimvavanyo zebhetshi ezincinci ngeeviscosities ezahlukeneyo zeHPMC ukujonga ukusebenza.
Ukulinganisa iiparamitha ezifana nokugcinwa kwamanzi, ukusebenza, kunye namandla okubambelela.
Lungisa ngokuSekwe kwiZiphumo:
Lungisa kakuhle ukhetho lwe-viscosity ngokusekelwe kwiziphumo zovavanyo.
Qinisekisa ukuba imveliso yokugqibela ihlangabezana nazo zonke iimfuno zesicelo kunye nokusebenza.
IiRange zeViscosity eziqhelekileyo zezicelo ezahlukeneyo
I-Wall Putty: 50,000 ukuya kwi-100,000 mPa.s
IZincamathelisi zeThayile: 100,000 ukuya kwi-200,000 mPa.s
Iidyasi zeSkim: 20,000 ukuya kwi-60,000 mPa.s
Impembelelo yeViscosity kwiNtsebenzo
I-HPMC ye-Viscosity ephantsi (<50,000 mPa.s): Ibonelela ngokusebenza kakuhle kunye nesicelo esigudileyo. Ukungasebenzi kancinci ekugcineni amanzi kunye nokumelana ne-sag. Ifanelekile kwiingubo zokugqiba kakuhle kunye neengubo ze-skim. I-HPMC ye-Viscosity ephakathi (50,000 - 100,000 mPa.s): Ilinganisa ukugcinwa kwamanzi kunye nokusebenza. Ifanelekile kwizicelo ze-putty eludongeni ngokubanzi. Ukwandisa ukunamathela kunye nexesha elivulekileyo ngokumodareyitha. High Viscosity HPMC (>100,000 mPa.s):
Ukugcinwa kwamanzi okugqwesileyo kunye neempawu zokubambelela.
Ukumelana ne-sag engcono kunye nexesha elivulekileyo.
Efanelekileyo kwi-adhesives tile kunye ne-high-performance putty formulations.
Ukukhetha i-viscosity ye-HPMC echanekileyo yokuveliswa kodaka olomileyo lwe-putty sisigqibo esinamacala amaninzi esichaphazela ukusebenza kwemveliso kunye nokusebenziseka. Ngokuqwalasela iimfuno zesicelo, iimeko zokusingqongileyo, iimpawu zezinto ezisisiseko, kunye neempawu zokusebenza ezinqwenelekayo, abavelisi banokukhetha ibakala elifanelekileyo le-HPMC. Ukuqhuba uvavanyo lwebhubhu ngokucokisekileyo kunye nohlengahlengiso kuqinisekisa ukuba i-viscosity ekhethiweyo ihlangabezana neemfuno ezithile zesicelo esicetywayo, okubangelwa umgangatho ophezulu, imveliso ethembekileyo.
Ixesha lokuposa: May-23-2024