Kwi-putty, i-samente mortar kunye ne-gypsum-based slurry,I-HPMCI-hydroxypropyl methylcellulose ether idlala indima yokugcina amanzi kunye nokuqina, kwaye inokuphucula ngempumelelo ukunamathela kunye nokumelana nokuwa kwe-slurry. Izinto ezifana nobushushu bomoya, ubushushu kunye nesantya soxinzelelo lomoya ziya kuchaphazela izinga lokuguquguquka kwamanzi kwi-putty, i-samente mortar kunye neemveliso ezisekwe kwi-gypsum. Ke ngoko, ngamaxesha ahlukeneyo onyaka, kukho umahluko othile kwisiphumo sokugcina amanzi kwiimveliso ezinomlinganiselo ofanayo we-HPMC eyongeziweyo. Kwisakhiwo esithile, isiphumo sokugcina amanzi se-slurry sinokulungiswa ngokunyusa okanye ukunciphisa inani le-HPMC eyongeziweyo.
Ukugcinwa kwamanzi kwe-methyl cellulose ether phantsi kweemeko zobushushu obuphezulu luphawu olubalulekileyo lokwahlula umgangatho we-methyl cellulose ether. Iimveliso ezibalaseleyo zochungechunge lwe-HPMC zinokusombulula ngempumelelo ingxaki yokugcina amanzi phantsi kobushushu obuphezulu. Ngamaxesha obushushu obuphezulu, ingakumbi kwiindawo ezishushu nezomileyo kunye nokwakhiwa okuncinci kwicala elinelanga, i-HPMC esemgangathweni ophezulu iyafuneka ukuphucula ukugcinwa kwamanzi kwe-slurry. I-HPMC esemgangathweni ophezulu inokuguqula amanzi akhululekileyo kwi-mortar abe ngamanzi abotshelelweyo, ngaloo ndlela ilawula ngempumelelo ukufuma kwamanzi okubangelwa yimozulu eshushu ephezulu kwaye ifezekise ukugcinwa kwamanzi aphezulu.
I-methyl cellulose ekumgangatho ophezulu ingasasazwa ngokulinganayo nangokufanelekileyo kwi-samente mortar kunye neemveliso ezisekwe kwi-gypsum, kwaye igoqe zonke iinxalenye eziqinileyo, kwaye yenze ifilimu yokumanzisa, kwaye amanzi aya kukhululwa kancinci kancinci kwixesha elide. Kwenzeka impendulo yokumanzisa, ngaloo ndlela kuqinisekiswa amandla okubopha kunye namandla okucinezela kwezinto. Ke ngoko, kulwakhiwo lwasehlotyeni olushushu kakhulu, ukuze kufezekiswe isiphumo sokugcina amanzi, kuyimfuneko ukongeza iimveliso ze-HPMC ezikumgangatho ophezulu ngobuninzi obaneleyo ngokwefomula. Ukuba kusetyenziswa i-HPMC edibeneyo, ukumanzisa okwaneleyo, amandla anciphileyo, ukuqhekeka, kunye nezithuba ezivulekileyo kuya kwenzeka ngenxa yokomisa kakhulu. Iingxaki zomgangatho ezifana needrama kunye nokuchitheka nazo ziyandisa ubunzima bokwakha kubasebenzi. Njengoko ubushushu buhla, ubungakanani be-HPMC eyongeziweyo bunokuncipha kancinci, kwaye isiphumo esifanayo sokugcina amanzi sinokufezekiswa.
Inkqubo yokusabela ilawula ngokuchanekileyo imvelisoI-HPMC, kwaye ukutshintshwa kwayo kugqityiwe kwaye ukufana kwayo kulungile kakhulu. Isisombululo sayo samanzi sicacile kwaye sicacile, sineefayibha ezimbalwa ezikhululekileyo. Ukuhambelana nomgubo ngerabha, isamente, ikalika kunye nezinye izinto eziphambili kunamandla kakhulu, nto leyo enokwenza ukuba izinto eziphambili zisebenze kakuhle. Nangona kunjalo, i-HPMC enempendulo embi ineefayibha ezininzi ezikhululekileyo, ukusasazwa okungalinganiyo kwezinto ezithatha indawo, ukugcinwa kwamanzi okungalunganga kunye nezinye iimpawu, okubangela ukuba amanzi aphume kakhulu kwimozulu eshushu kakhulu. Nangona kunjalo, into ebizwa ngokuba yi-HPMC (uhlobo lwe-compound) enokungcola okuninzi kunzima ukuyidibanisa, ngoko ke ukugcinwa kwamanzi kunye nezinye iimpawu zimbi nangakumbi. Xa kusetyenziswa i-HPMC ekumgangatho ophantsi, iingxaki ezinje ngamandla aphantsi okutyibilika, ixesha elifutshane lokuvula, umgubo, ukuqhekeka, ukugoba kunye nokuchitha kuya kubangelwa, okuya kwandisa ubunzima bokwakha kwaye kunciphise kakhulu umgangatho wesakhiwo.
Ixesha leposi: Epreli-28-2024