I-self-leveling compounds (SLC) yizinto zokwakha zaphansi ezomisa ngokushesha futhi eziguquguqukayo eziya ngokuya ziduma ngenxa yokuqina kwazo okukhethekile kanye nendawo ebushelelezi. Zisetshenziswa kakhulu ezindaweni zokuhlala nezokuhweba ukulinganisa indawo ekhonkolo ngaphambi kokubeka ukhaphethi, i-vinyl, izinkuni noma amathayela phansi. Kodwa-ke, ukusebenza kwama-SLC kungase kuthinteke izici ezihlukahlukene zemvelo ezifana nezinga lokushisa, umswakama, nokunamathela kwe-substrate. Ukuze kuthuthukiswe ukusebenza kwezinhlanganisela zokuzilinganisa, abakhiqizi sebeqalile ukungeza i-hydroxypropylmethylcellulose (HPMC) kanye ne-hydroxyethylmethylcellulose (HEMC) njengama-thickeners.
I-HPMC i-polymer encibilika emanzini eyenza ijeli ezinzile lapho ihlakazeka emanzini. Ivame ukusetshenziswa ezinhlelweni zezakhiwo ngenxa yokugcinwa kwayo kahle kwamanzi kanye nezakhiwo zokunamathela. Uma yengezwe kumakhompiyutha azilinganisa wona, i-HPMC ithuthukisa ukugeleza nokusebenza kwengxube. Iphinde inciphise inani lamanzi adingekayo ukuze kuzuzwe ukuvumelana okufunayo, ukuvimbela ukuncipha kanye nokuqhekeka ngesikhathi sokwelapha. Ngaphezu kwalokho, i-HPMC ingakhuphula amandla ahlangene we-SLC, ngaleyo ndlela ithuthukise ukumelana kwayo nokugqoka.
I-HEMC enye i-polymer encibilika emanzini esetshenziswa kabanzi embonini yezokwakha njenge-ejenti yokulawula ukuqina kanye ne-rheology. Ingathuthukisa ukunamathela, ukubumbana nokuvumelana kwezinto zokwakha, ikwenze kube isengezo esidumile ku-SLC. Uma ingezwe ku-SLC, i-HEMC yandisa i-viscosity yengxube, ivumela ukuthi isakaze ngokulinganayo futhi ibambelele kangcono ku-substrate. Iphinde ithuthukise izakhiwo zokuzilinganisa zenhlanganisela, inciphisa amathuba okuba khona kokukhubazeka okungaphezulu njengama-pinholes namabhamuza omoya. Ngaphezu kwalokho, i-HEMC inyusa amandla emishini ewonke e-SLC, iyenze iqine futhi ingabi sengozini yokulimala.
Enye yezinzuzo eziyinhloko zokusebenzisa i-HPMC ne-HEMC kuzinhlanganisela zokuzilinganisa ukuthi zithuthukisa ukusebenza kwengxube. Lokhu kusho ukuthi osonkontileka bangathulula futhi basabalalise i-SLC kalula, banciphise inani labasebenzi elidingekayo emsebenzini. Futhi, ukwengeza i-HPMC ne-HEMC ku-SLC kusiza ukunciphisa isikhathi sokumisa sengxube. Lokhu kungenxa yokuthi avimbela amanzi engxube ukuthi ahwamuke, okuholela enqubweni yokwelapha elinganayo futhi engaguquki.
Enye inzuzo yokusebenzisa i-HPMC ne-HEMC kumakhompiyutha okuzilinganisa ukuthi athuthukisa ikhwalithi yonke yesitezi esiqediwe. Uma engezwe kumxube, lawa ma-polymers athuthukisa ukunamathela kwe-SLC ku-substrate, enciphisa ithuba lokuhluleka kwebhondi. Lokhu kuqinisekisa ukuthi iphansi lizohlala isikhathi eside futhi lihlale liqinile ngisho naphakathi kwezimoto eziningi. Ukwengeza, ukusetshenziswa kwe-HPMC kanye ne-HEMC kudala indawo ebushelelezi, esezingeni elenza kube lula ukubeka ezinye izinto zokubeka phansi phezulu.
Mayelana nezindleko, ukwengeza i-HPMC ne-HEMC kuzinhlanganisela zokuzilinganisa kubiza kakhulu. Lawa ma-polymers atholakala kalula emakethe futhi angafakwa kalula ekuhlanganisweni kwe-SLC ngesikhathi sokukhiqiza. Ngokuvamile, amanani amancane kuphela we-HPMC ne-HEMC adingekayo ukuze kuzuzwe ukuvumelana nokusebenza okudingekayo ku-SLC, okusiza ukugcina izindleko zokukhiqiza ziphansi.
Okokugcina, ukusetshenziswa kwe-HPMC ne-HEMC kuzinhlanganisela zokuzilinganisa kuyisixazululo esinobungani bemvelo. Lawa ma-polymers ayakwazi ukubola futhi awaqukethe izinto eziyingozi, okusho ukuthi awabeki engcupheni impilo yomuntu noma imvelo. Ukusetshenziswa kwabo ku-SLC kusiza ukukhuthaza ukusimama embonini yezokwakha, okucatshangwayo okubalulekile emhlabeni wanamuhla.
Ukwengeza i-HPMC ne-HEMC kuzinhlanganisela zokuzilinganisa kunezinzuzo eziningi, okuyenza ibe yisixazululo esikahle kosonkontileka nabakhiqizi. Lawa ma-polymers athuthukisa ukucutshungulwa kwengxube, anciphise isikhathi sokumisa, athuthukise ikhwalithi yephansi eliqediwe, agcine izindleko zokukhiqiza ziphansi futhi akhuthaze ukusimama. Njengoba imboni yezokwakha iqhubeka nokufuna izixazululo ezintsha zokuthuthukisa ukusebenza kahle, ikhwalithi nokusimama kwemikhiqizo yayo, cishe sizobona ukusetshenziswa okubanzi kwe-HPMC ne-HEMC ku-SLC esikhathini esizayo.
Isikhathi sokuthumela: Aug-11-2023