I-Hydroxypropyl methylcellulose (HPMC) yimathiriyeli yezoshishino esetyenziswa ngokubanzi kwimiqulu ye-putty eludongeni, ngakumbi kwizicelo zangaphakathi nangaphandle.
HPMC powder intshayelelo:
Inkcazelo kunye nokwakheka:
IHydroxypropyl methylcellulose, ekubhekiselwa kuyo njenge-HPMC, yi-ether eselulosi elungisiweyo ephuma kwi-cellulose yendalo. Yenziwa ngokuguqula imichiza icellulose, icarbohydrate entsonkothileyo efumaneka kwiindonga zeeseli zezityalo. Ukuguqulwa kubandakanya ukuqaliswa kwe-hydroxypropyl kunye namaqela e-methyl kwisakhiwo se-cellulose, okukhokelela kwi-polymer e-soluble yamanzi kunye nezinto ezininzi ezininzi.
Iimpawu zomzimba kunye neekhemikhali:
Ukunyibilika: I-HPMC iyanyibilika emanzini, yenza isisombululo esicacileyo nesingenambala. I-Solubility inokulungelelaniswa ngokutshintsha i-degree of substitution (DS) ngexesha lenkqubo yokuvelisa.
I-Viscosity: I-HPMC inika i-viscosity elawulwayo kunye ehambelanayo kwisisombululo. Le propati ibalulekile kwimiqulu ye-putty eludongeni njengoko ichaphazela ukusebenza kunye neempawu zokusetyenziswa kwezinto.
I-Thermal Gelation: I-HPMC ibonisa i-thermal gelation, ethetha ukuba ingenza ijeli xa ishushu. Le propati ibalulekile kwizicelo ezithile apho i-gelling ifunwa.
Ukusetyenziswa kweHPMC kwiputty eludongeni:
Ngaphakathi eludongeni putty:
1. Ukudibanisa kunye nokuncamathela:
I-HPMC iphucula iipropati zokudityaniswa kwe-putty eludongeni lwangaphakathi, iqinisekisa ukunamathela okungcono kwii-substrates ezifana nekhonkrithi, i-stucco okanye i-drywall.
Isakhiwo seselulosi esilungisiweyo se-HPMC senza ifilimu ebhityileyo kumphezulu, ibonelela ngebhondi eyomeleleyo nehlala ixesha elide.
2. Ukuqhubekeka kunye nokulula kwesicelo:
I-viscosity elawulwayo ye-HPMC inika i-putty ukusebenza kakuhle, ivumela ukuba isetyenziswe ngokutyibilikayo kwaye kulula kwiindawo zangaphakathi.
Ikhusela ukuntywila kunye nokuvuza ngexesha lokufaka isicelo kwaye iqinisekisa isambatho esifanayo.
3. Ukugcinwa kwamanzi:
I-HPMC isebenza njenge-arhente yokugcina amanzi, ikhusela ukuguquka kwamanzi ngokukhawuleza ngexesha lesigaba sokunyanga. Oku kunceda ukuphucula i-hydration ye-putty, okukhokelela ekuphuhliseni amandla angcono.
Iputty yodonga lwangaphandle:
1. Ukuxhathisa imozulu:
I-HPMC iphucula ukuxhathisa kwemozulu kwi-putty eludongeni lwangaphandle kwaye ikhusela ngokuchasene neziphumo ezibi zokukhanya kwelanga, imvula kunye notshintsho lobushushu.
Ifilimu ye-polymer eyenziwe yi-HPMC isebenza njengesithintelo, ukuthintela ukungena komswakama kunye nokugcina ingqibelelo yengubo.
2. Ukumelana neecrack:
Ukuguquguquka kwe-HPMC kunegalelo ekuxhathiseni kokuqhekeka kwe-putty yodonga lwangaphandle. Ivumela ukunyakaza kwe-substrate ngaphandle kokuchaphazela ingqibelelo yengubo.
Le propati ibaluleke kakhulu kwizicelo zangaphandle ezivezwe kuxinzelelo lokusingqongileyo.
3. Ukuqina:
I-HPMC iphucula ukuqina kwayo yonke i-putty yangaphandle ngokunyusa ukuxhathisa kwayo kwi-abrasion, impembelelo kunye nokuvezwa kweekhemikhali.
Ifilimu ekhuselayo eyenziwe yi-HPMC inceda ukwandisa ubomi bokugquma kunye nokunciphisa imfuno yokugcinwa rhoqo.
Izinto ezilungileyo zokusebenzisa i-HPMC kwi-putty eludongeni:
1. Umgangatho ozinzile:
I-HPMC iqinisekisa ukuba imixube eyenziwe eludongeni ikumgangatho ofanayo kwaye ihlangabezana nemigangatho yokusebenza efunekayo.
2. Phucula ukusebenza:
I-viscosity elawulwayo ye-HPMC ibonelela ngokusebenza kakuhle, okwenza inkqubo yesicelo isebenze ngakumbi kwaye isebenziseke lula.
3. Nyusa ukuncamathela:
Iimpawu zokuncamathelisa ze-HPMC zinegalelo ekunamatheleni okugqwesileyo, ukuqinisekisa ukuba i-putty ibambelela kakuhle kwiintlobo ezahlukeneyo ze-substrates.
4. Ukuguquguquka:
I-HPMC inomsebenzi omninzi kwaye ingasetyenziswa kwiindlela ezahlukeneyo kwaye inokwenziwa ngokwezifiso ukuhlangabezana neemfuno ezithile zeprojekthi.
ukuququmbela:
I-Hydroxypropyl methylcellulose (HPMC) ipowder iyisithako esiphambili kwiifomyula ze-putty zangaphakathi nangaphandle. Iimpawu zayo ezikhethekileyo, kubandakanywa ukunyibilika, ukulawulwa kwe-viscosity kunye nobuchule bokwenza ifilimu, yenza kube yinto efanelekileyo yokuphucula ukusebenza kunye nokuqina kweengubo zodonga. Nokuba zifakwe ngaphakathi okanye ngaphandle, iipuphu eludongeni eziqulathe i-HPMC zibonelela ngomgangatho ongaguqukiyo, ukuphuculwa kokusebenza kwesicelo kunye nokhuseleko oluhlala ixesha elide ngokuchasene nemiba yokusingqongileyo. Njengoko ishishini lokwakha liqhubeleka nokuvela, indima ye-HPMC kulwakhiwo lwe-putty eludongeni luhlala lubalulekile ekuphumezeni umgangatho ophezulu kunye nokugqitywa kokuqina.
Ixesha lokuposa: Jan-25-2024