I-HPMC, ekwabizwa ngokuba yi-hydroxypropyl methylcellulose, sisongezo esisebenzayo esisetyenziswa kakhulu kushishino lokwakha, ngakumbi ekwenzeni i-wall putty. I-Wall putty isetyenziselwa ukulungiselela kunye nomgangatho weendonga ngaphambi kokupeyinta, ngaloo ndlela ibonelela ngokugqibeleleyo.
Abakhi abaninzi baye baneengxaki zokuwohloka kwixa elidlulileyo. I-Sag yenzeka xa i-putty iqala ukutyibilika eludongeni ngenxa yobunzima bayo. Oku kukhokelela ekugqityweni okungalinganiyo kunye nokungasebenzi kakuhle okuthatha ixesha elininzi kunye nomzamo wokulungisa. Nangona kunjalo, abakhi bafumene isisombululo ngokongeza i-HPMC kwi-putty eludongeni, enceda ukuphucula ukuxhathisa kwe-sag kunye nomgangatho opheleleyo wemveliso yokugqibela.
Kukho izizathu ezininzi zokuba kutheni i-HPMC isisongezo esisebenzayo. Okokuqala, isebenza njenge-thickener, oku kuthetha ukuba inceda ukunyusa i-viscosity ye-putty. Oku kwanda kwe-viscosity kwenza kube nzima kwizinto eziphathekayo ukutyibilika kwiindonga kwaye kuququzelele ukunamathela okungcono kwiindawo. I-viscosity eyongeziweyo ye-putty ikwenza ukuba izalise i-microcracks kunye nemingxuma emincinci eludongeni, ibonelela ngomphandle ogudileyo, othe kratya. Olu phawu lukwanceda ukunciphisa inani le-putty elifunekayo ukugubungela indawo engaphezulu, ekhokelela kwisisombululo esineendleko eziphezulu.
Okwesibini, i-HPMC idlala indima ebalulekileyo ekulawuleni isantya sokumisa kwi-putty eludongeni. Isantya sokumisa sichaphazela ngokuthe ngqo ukuxhathisa kwe-sag ye-putty, kwaye i-putty eyomisa ngokukhawuleza ihlala izinzile kwaye akukho lula ukugoba. I-HPMC inceda ukulawula umlinganiselo wokuphuphuma kwamanzi kwimpahla ye-putty, echaphazela ixesha layo lokumisa. Olu lungiselelo lukhokelela kwi-putty ezinzileyo kwaye engaguqukiyo eyoma ngokulinganayo, inciphisa ithuba lokuhla.
I-HPMC ingasetyenziselwa ukuphucula ukunamathela phakathi kwe-putty eludongeni kunye ne-substrate. I-Adhesion ibhekisela kwiqondo apho i-putty ibambelela khona kwindawo esetyenziswa kuyo. I-HPMC inokwandisa kakhulu ukubambelela kuba inika ifilimu ekhuselayo phezu komhlaba, ephucula ukunamathela kwe-putty kwi-substrate.
Ukongeza, i-HPMC inokunceda ukugcina ukufuma kwizinto ezifakwa eludongeni. Nangona amanzi engoyena mthombo wokusetyenzwa kwe-putty kunye nokuqina, ikwangoyena nobangela wokuqhekeka kunye nokuncipha kwezinto xa amanzi ephuphuma ngokukhawuleza kakhulu. I-HPMC inceda ukugcina ukufuma kwimpahla ye-putty ixesha elide, ivumela i-putty ukuba ihlale ngokulinganayo kwaye yome ngaphandle kokugubha.
Ukushwankathela, i-HPMC sisongezo esibalulekileyo nesisebenzayo kwi-putty eludongeni, edlala indima ebalulekileyo ekwandiseni ipropathi echasayo ye-putty eludongeni. Ngokuqiniswa kwayo, ukulawula izinga lokumisa, ukuphuculwa kokubambelela kunye neempawu zokugcina amanzi, i-HPMC inikezela abakhi isisombululo esisebenzayo kwiingxaki ze-sag kunye nokuphucula umgangatho opheleleyo wemveliso yokugqibela. I-advanteji ayikho kuphela kwi-smooth, i-stable surface egqityiweyo, kodwa nakwindleko-esebenzayo yesisombululo. Ke ngoko, kuyafuneka ukuqaphela kwaye kugxininiswe indima engenakubuyiselwa ye-HPMC kushishino lokwakha.
Ixesha lokuposa: Aug-15-2023