I-HPMC (CAS:9004-65-3), njengesithasiselo esisetshenziswa kabanzi emkhakheni wezinto zokwakha, isetshenziswa kakhulu ukugcina amanzi, ukuqina kanye nokuthuthukisa ukusebenza kahle komkhiqizo oqediwe. Izinga lokugcina amanzi lingenye yezinkomba eziyinhloko uma ukhetha i-HPMC esezingeni eliphezulu, ngakho ake sibheke kabanzi izici ezithinta izinga lokugcina amanzi le-HPMC.
1. Umthamo we-HPMC, kanye nokusebenza kwayo kokugcinwa kwamanzi kuhambisana ngqo nenani elengeziwe. Inani le-HPMC elisetshenziswa ezintweni zokwakha emakethe liyahlukahluka kuye ngekhwalithi. Ngokuvamile lifakwa njengokubopha, ukuplasta, udoti oluvimbela ukuqhekeka, njll. Inani elijwayelekile lokwengeza lingu-2 ~ 2.5 KG /MT, inani lokwengeza le-putty njll. liphakathi kuka-2 ~ 4.5 KG /MT, iglue yethayela iphakathi kuka-3.5 ~ 4 KG /MT, kanti inani le-grout yethayela lingu-0.3 ~ 1 KG /MT ngokwezindlela ezahlukene zokwakha, ububanzi begebe kanye nobukhulu be-slurry, udoti ozimele uphakathi kuka-0.2 ~ 0.6 KG /MT, kanti i-ETICS iphakathi kuka-4 ~ 7 KG /MT. Ngaphakathi kwalolu hlu, uma i-HPMC ingeziwe kakhulu, ukusebenza kokugcinwa kwamanzi kungaba ngcono.
2. Umthelela wendawo yokwakha. Umswakama womoya, izinga lokushisa, umfutho womoya, isivinini somoya nezinye izinto kuzothinta izinga lokuguquguquka kwamanzi ku-samente mortar kanye nemikhiqizo esekelwe ku-gypsum. Ezinkathini ezahlukene nasezifundeni ezahlukene, izinga lokugcina amanzi lomkhiqizo ofanayo lizohluka, kodwa ngokuvamile, izinga lokushisa linethonya elikhulu ezingeni lokugcina amanzi, ngakho-ke kukhona umbono emakethe: I-HPMC enezinga lokushisa eliphakeme lejeli ingumkhiqizo wekhwalithi ephezulu onezinga eliphezulu lokugcina amanzi.
3. Inqubo yokukhiqiza kanye ne-viscosity ye-cellulose ether -HPMC. Amaqembu e-methoxy kanye ne-hydroxypropoxy asatshalaliswa ngokulinganayo ku-cellulose molecular chain, okungakhulisa ukuhlangana kwama-athomu e-oxygen kuma-hydroxyl kanye ne-ether bonds namanzi. Amandla okubopha i-hydrogen enza amanzi akhululekile abe ngamanzi aboshwe, ngaleyo ndlela alawule ngempumelelo ukuhwamuka kwamanzi futhi afinyelele ukugcinwa kwamanzi okuphezulu.
Uma i-viscosity ye-HPMC ikhula, izinga lokugcina amanzi nalo liyakhula, i-viscosity ifinyelela ezingeni elithile, izinga lokugcina amanzi liyakhula. Kuvame ukuba yisicaba. Ukubuka konke okulula. Umsebenzi wokugcina amanzi we-HPMC uthintwa yizo zonke izici. Ukukhetha akukwazi ukusekelwe enkombeni eyodwa.
Isikhathi sokuthunyelwe: Meyi-16-2022