I-Hydroxypropyl methylcellulose isetshenziswa kakhulu njenge-dispersant ekukhiqizweni kwe-polyvinyl chloride, futhi iyi-ejenti eyinhloko yokusiza yokulungiselela i-PVC nge-suspension polymerization. Enqubweni yokwakha embonini yokwakha, isetshenziswa kakhulu ekwakheni ngomshini njengokwakha udonga, ukuplasta, ukufaka i-caulking, njll.; ikakhulukazi ekwakheni kokuhlobisa, isetshenziswa ukunamathisela amathayili e-ceramic, imabula, kanye nemihlobiso yepulasitiki. Inamandla aphezulu okubopha futhi inganciphisa inani lesimende. . Isetshenziswa njengesithambisi embonini yokupenda, okungenza ungqimba lukhanye futhi lube mnene, kuvimbele ukususwa kwempuphu, kuthuthukise ukusebenza kwe-leveling, njll.
Ku-samente mortar kanye ne-gypsum-based slurry, i-hydroxypropyl methylcellulose idlala indima yokugcina amanzi kanye nokuqina, okungathuthukisa ngempumelelo amandla okuhlangana kanye nokumelana nokuwa kwe-slurry. Izinto ezifana nokushisa komoya, izinga lokushisa kanye nesivinini sokucindezela komoya kuzothinta izinga lokuguquguquka kwamanzi ku-samente mortar kanye nemikhiqizo esekelwe ku-gypsum. Ngakho-ke, ezinkathini ezahlukene, kunomehluko othile emphumeleni wokugcina amanzi wemikhiqizo enenani elifanayo le-hydroxypropyl methylcellulose engeziwe. Ekwakhiweni okuthile, umphumela wokugcina amanzi we-slurry ungalungiswa ngokwandisa noma ukunciphisa inani le-HPMC engeziwe. Ukugcinwa kwamanzi kwe-methyl cellulose ether ngaphansi kwezimo zokushisa okuphezulu kuyinkomba ebalulekile yokuhlukanisa ikhwalithi ye-hydroxypropyl methyl cellulose ether. Imikhiqizo emihle kakhulu yochungechunge lwe-hydroxypropyl methylcellulose ingaxazulula ngempumelelo inkinga yokugcina amanzi ngaphansi kokushisa okuphezulu. Ezinkathini zokushisa okuphezulu, ikakhulukazi ezindaweni ezishisayo nezomile kanye nokwakhiwa okunezingqimba ezincane ohlangothini olunelanga, i-HPMC esezingeni eliphezulu iyadingeka ukuthuthukisa ukugcinwa kwamanzi kwe-slurry.
I-hydroxypropyl methylcellulose (HPMC) esezingeni eliphezulu inokufana okuhle kakhulu. Amaqembu ayo e-methoxy kanye ne-hydroxypropoxy asatshalaliswa ngokulinganayo ku-cellulose molecular chain, okungandisa ama-athomu e-oxygen kuma-hydroxyl kanye ne-ether bonds. Amandla okuhlangana namanzi ukwakha ama-hydrogen bonds aguqula amanzi akhululekile abe ngamanzi aboshwe, ngaleyo ndlela alawule ngempumelelo ukuhwamuka kwamanzi okubangelwa yisimo sezulu esishisa kakhulu futhi afinyelele ukugcinwa kwamanzi okuphezulu. Amanzi ayadingeka ukuze kufakwe amanzi ukuze kufakwe izinto ezifaka usimende njenge-simende kanye ne-gypsum. Inani elifanele le-HPMC lingagcina umswakama ku-mortar isikhathi eside ngokwanele ukuze inqubo yokubeka nokuqinisa iqhubeke.
Inani le-hydroxypropyl methylcellulose (HPMC) elidingekayo ukuze kutholakale ukugcinwa kwamanzi okwanele lincike ku:
Ukumuncwa kwesendlalelo sesisekelo
Ukwakheka kwe-mortar
Ubukhulu besendlalelo se-mortar
Isidingo samanzi odaka
Isikhathi sokubekwa kwezinto ezisebenzisa usimende
I-Hydroxypropyl methylcellulose ingasakazwa ngokulinganayo nangokuphumelelayo ku-cement mortar kanye nemikhiqizo esekelwe ku-gypsum, futhi igoqe zonke izinhlayiya eziqinile, bese yakha ifilimu yokumanzisa, umswakama osesisekelweni ukhishwa kancane kancane isikhathi eside, futhi uyahambisana ne-inorganic. Ukusabela kokumanzisa kwezinto ezifakwe ku-gelled kuqinisekisa amandla okubopha kanye namandla okucindezela kwezinto.
Ngakho-ke, ekwakheni ehlobo okushisa okuphezulu, ukuze kufezwe umphumela wokugcina amanzi, kuyadingeka ukwengeza imikhiqizo ye-HPMC esezingeni eliphezulu ngobuningi obanele ngokwefomula, ngaphandle kwalokho, kuzoba nokumanzi okwanele, amandla anciphile, ukuqhekeka, ukugoba kanye nokuchitheka okubangelwa ukoma ngokweqile. Kodwa futhi kwandisa ubunzima bokwakha bezisebenzi. Njengoba izinga lokushisa lehla, inani lamanzi engeziwe i-HPMC lingancishiswa kancane kancane, futhi umphumela ofanayo wokugcina amanzi ungafinyelelwa.
Isikhathi sokuthunyelwe: Ephreli-10-2023