Ama-cellulose ethers ayikilasi lama-polymers ancibilika emanzini anesisindo samangqamuzana aphezulu asuselwa ku-cellulose.Zisetshenziswe kakhulu embonini yezokwakha njengezixube ezithuthukisa ukusebenza kwemikhiqizo esekwe usimende kanye ne-gypsum.Phakathi kwazo, i-hydroxypropyl methylcellulose (HPMC) ingenye ye-cellulose ethers ebaluleke kakhulu ye-putty.
Njengomkhiqizi ochwepheshe we-HPMC, sizokuchazela ngendima ye-cellulose ether ku-putty.Sithemba ukuthi lokhu okuthunyelwe kuhlinzeka ngemininingwane ewusizo kulabo abathanda lesi sihloko.
1. Ukugcinwa kwamanzi
Omunye wemisebenzi eyinhloko ye-cellulose ether ye-putty ukugcinwa kwamanzi.I-Putty yinto efana nokunamathisela esetshenziselwa ukugcwalisa izikhala kanye nemifantu ezindaweni ezifana nezindonga, usilingi kanye naphansi.Amanzi ayisithako esibalulekile ekwenziweni kwe-putty ngoba asiza ukuncibilikisa izithako futhi anikeze ukusebenza.Kodwa-ke, amanzi amaningi angabangela ukuthi i-putty yome futhi inciphe ngokushesha, okuholela ekuqhekekeni nasekuqedeni kwekhwalithi ephansi.
I-Cellulose ether, ikakhulukazi i-HPMC, yakha isakhiwo esifana nejeli lapho sixutshwa namanzi, esingathuthukisa ukugcinwa kwamanzi kwe-putty.Amaqembu e-hydrophilic e-HPMC angakwazi ukumunca ama-molecule amanzi futhi awavimbele ukuthi ahwamuke ngokushesha kakhulu.Lesi sici sivumela izikhathi ezinde zokusebenza kanye nokuthungwa kwe-putty okungaguquki.
2. Thuthukisa ukusebenza
Omunye umsebenzi obalulekile we-cellulose ether ye-putty ukuthuthukisa ukusebenza kwayo.Ukusebenza kubhekisela ekusetshenzisweni kalula kwe-putty nokubunjwa ukuze kutholwe indawo ebushelelezi.I-Cellulose ether ingathuthukisa uketshezi nokusabalala kwe-putty ngokunciphisa ukungqubuzana phakathi kwezinhlayiya nokwandisa ukuthambisa kwesistimu.
Ukwengezwa kwe-cellulose ethers kuma-putty nakho kunciphisa ukuvaleka komoya okubangelwa ukuxubana, okungaholela ezingxenyeni ezingalingani kanye nokunamathela okubi.Ukusetshenziswa kwe-cellulose ethers kuthuthukisa ukushelela nokuvumelana kwe-putty, okuholela ekusebenzeni okungcono okuphelele kanye nesiphetho esikhangayo.
3. Khulisa ukunamathela
Enye inzuzo ye-cellulose ether ye-putty ukwanda kokunamathela.Ama-putty asetshenziselwa ukugcwalisa izikhala nokuqhekeka, kanye nokwenza indawo ebushelelezi yopende noma okunye ukuqedwa.Ngakho-ke, i-putty kumele ikwazi ukunamathela ku-substrate futhi inikeze isibopho esiqinile.
I-Cellulose ether, ikakhulukazi i-HPMC, ingathuthukisa ukunamathela kwe-putty ngokwenza ifilimu ebusweni be-substrate.Ifilimu ithuthukisa ukuxhumana phakathi kwe-putty ne-substrate futhi isiza ukugcwalisa ukungahambi kahle kwendawo.Lokhu kubangela isibopho esiqinile kanye nesiphetho esihlala isikhathi eside.
4. Yehlisa ukushwabana
I-Shrinkage iyinkinga evamile nge-putty, njengoba ingaholela ekuqhekekeni nasekuqedeni kwekhwalithi ephansi.Ama-cellulose ether angasiza ekunciphiseni ukushwabana kwe-putty ngokuthuthukisa ukugcinwa kwamanzi nokusebenza kwe-putty.Amanzi ahwamuka kancane kancane, anikeze i-putty ukuthungwa okushelelayo okusiza ukuvimbela ukuqhekeka kanye nemifantu ukuthi yakheke ngesikhathi somiswa.
Ngaphezu kwalokho, i-cellulose ether nayo inganciphisa ukuncipha kwepulasitiki ye-putty, okungukuthi, ukuncipha okwenzeka ngesikhathi sokumiswa kokuqala.Lesi sakhiwo sibaluleke kakhulu kuma-putty okusetha ngokushesha, njengoba kusiza ukugcina ubuqotho bendawo futhi kuvimbela ukwakheka kwemifantu.
5. Ukuqina okuthuthukisiwe
Okokugcina, ama-cellulose ether angathuthukisa ukuqina kwe-putty ngokuthuthukisa ukumelana nezici zemvelo ezifana nokushintsha kwezinga lokushisa, umswakama kanye nokuhuzuka.Izakhiwo zokwakha ifilimu ze-cellulose ether zinganikeza umgoqo wokuvikela endaweni ye-putty ukuvimbela ukungena kwamanzi nokunye ukungcola.
Ngaphezu kwalokho, i-cellulose ether ingaphinde ithuthukise amandla okugobeka nomthelela wokumelana ne-putty, iyenze imelane nokuqhekeka nokuqhekeka.Lesi sakhiwo sibaluleke kakhulu ezinhlelweni zokusebenza lapho ama-putty ephathwa njalo noma ethintekile, njengasemsebenzini wokukhanda noma ekuqedweni kokuhlobisa.
Ekuphetheni
Sengiphetha, ama-cellulose ethers, ikakhulukazi i-HPMC, ayimixube ethuthukisa ukusebenza kwe-putty.Imisebenzi yabo ihlanganisa ukugcinwa kwamanzi, ukucutshungulwa okuthuthukisiwe, ukunamathela okwenyukayo, ukuncipha kokuncipha kanye nokuqina okuthuthukisiwe.Ukusebenzisa i-cellulose ethers kusiza ukuthuthukisa ikhwalithi iyonke kanye nokusebenza kwe-putty, okuholela ekuqedeni okungcono nempilo ende.Njengomkhiqizi we-HPMC ochwepheshe, sizibophezele ekunikezeni amakhasimende ngekhwalithi ephezulu ye-cellulose ether kanye nokwesekwa kobuchwepheshe.
Isikhathi sokuthumela: Jul-20-2023