Nibihe biranga HPMC muri minisiteri yumye

1. Ibiranga HPMC muri minisiteri isanzwe

HPMC ikoreshwa cyane nka retarder hamwe nogukoresha amazi muri sima ugereranije. Mubice bifatika na minisiteri, birashobora kunoza ubukonje no kugabanuka, gushimangira imbaraga zifatika, kugenzura igihe cya sima, no kunoza imbaraga zambere nimbaraga zihamye. Kuberako ifite umurimo wo kugumana amazi, irashobora kugabanya igihombo cyamazi hejuru ya beto, ikirinda gucikamo inkombe, kandi igateza imbere no gukora neza. Cyane cyane mubwubatsi, igihe cyo gushiraho gishobora kongerwa no guhinduka. Hamwe no kwiyongera kwa HPMC, igihe cyo gushiraho minisiteri kizongerwa bikurikiranye; kunoza imashini na pompe, bikwiranye nubwubatsi bwimashini; kunoza imikorere yubwubatsi no kugirira akamaro inyubako Irinda ikirere cyumunyu ushonga.

2. Ibiranga HPMC muri minisiteri idasanzwe

HPMC nigikoresho cyiza cyane cyo kubika amazi ya poro yumye, igabanya umuvuduko wamaraso no gusibanganya minisiteri kandi ikanoza ubumwe bwa minisiteri. Nubwo HPMC igabanya gato imbaraga zo guhindagurika no kwikuramo imbaraga za minisiteri, irashobora kongera cyane imbaraga zingutu nimbaraga zububiko bwa minisiteri. Byongeye kandi, HPMC irashobora kubuza neza ishingwa rya plastike muri minisiteri no kugabanya igipimo cya plastike ya minisiteri. Kugumana amazi ya minisiteri yiyongera hamwe no kwiyongera kwa HPMC, kandi iyo ubukonje burenze 100000mPa · s, kubika amazi ntabwo byiyongera cyane. Ubwiza bwa HPMC nabwo bugira uruhare runini ku kigero cyo gufata amazi ya minisiteri. Iyo ibice ari byiza, igipimo cyo gufata amazi ya minisiteri kiba cyiza. Ingano ya HPMC isanzwe ikoreshwa kuri sima ya sima igomba kuba munsi ya microne 180 (ecran ya mesh 80). Igipimo gikwiye cya HPMC mumashanyarazi yumye ni 1 ‰～ 3 ‰.

2.1. Nyuma ya HPMC muri minisiteri imaze gushonga mumazi, gukwirakwiza neza kandi kimwe ibikoresho bya sima muri sisitemu biremezwa kubera ibikorwa byubuso. Nka colloid ikingira, HPMC "ipfunyika" ibice bikomeye kandi ikora urwego hejuru yacyo. Igice cya firime yo gusiga ituma sisitemu ya minisiteri ihagarara neza, kandi ikanatezimbere amazi ya minisiteri mugihe cyo kuvanga no kubaka neza.

2.2. Bitewe nuburyo bwimikorere ya molekuline, igisubizo cya HPMC gituma amazi yo muri minisiteri atoroha gutakaza, kandi akayirekura buhoro buhoro mugihe kinini, bigatuma minisiteri igumana amazi meza kandi yubaka. Irashobora kubuza amazi gutemba vuba kuva kuri minisiteri kugera mukibanza, kugirango amazi yagumanye agume hejuru yibintu bishya, bishobora guteza imbere sima kandi bikongerera imbaraga zanyuma. Cyane cyane niba intera ihuye na sima ya sima, plaster, hamwe na adhesive yatakaje amazi, iki gice ntikizagira imbaraga kandi hafi nta mbaraga zifatika. Muri rusange, ubuso buhuye nibi bikoresho byose ni adsorbents, byinshi cyangwa bike bikurura amazi aturutse hejuru, bikavamo hydrated ituzuye yiki gice, bigatuma sima ya sima na ceramic tile substrates hamwe na ceramic tile cyangwa plaster ninkuta Imbaraga zihuza hagati ubuso buragabanuka.

Mugutegura minisiteri, kubika amazi ya HPMC nigikorwa nyamukuru. Byaragaragaye ko gufata amazi bishobora kugera kuri 95%. Kwiyongera k'uburemere bwa molekuline ya HPMC no kwiyongera kwa sima bizamura imikoreshereze y'amazi n'imbaraga za minisiteri.

Urugero: Kubera ko amatafari ya tile agomba kuba afite imbaraga zingana haba hagati ya substrate na tile, ibifata bigira ingaruka kumyuka y'amazi aturuka ahantu habiri; hejuru ya substrate (urukuta) hejuru na tile. Cyane cyane kuri tile, ubwiza buratandukanye cyane, bimwe bifite imyenge minini, kandi amabati afite umuvuduko mwinshi wo gufata amazi, byangiza imikorere yubusabane. Igikoresho cyo kubika amazi ni ingenzi cyane, kandi kongeraho HPMC birashobora kuzuza iki gisabwa.

2.3. HPMC ihamye kuri aside na alkali, kandi igisubizo cyamazi cyacyo kirahagaze neza murwego rwa pH = 2 ~ 12. Caustic soda n'amazi ya lime ntacyo bihindura kumikorere yabyo, ariko alkali irashobora kwihutisha iseswa ryayo kandi ikongerera gato ububobere bwayo.

2.4. Imikorere yubwubatsi bwa minisiteri yongeweho na HPMC yatejwe imbere cyane. Minisiteri isa nkaho ari "amavuta", ishobora gutuma ingingo zurukuta zuzura, zoroha hejuru, gukora tile cyangwa amatafari hamwe nuburinganire bwibanze, kandi birashobora kongera igihe cyo gukora, bikwiriye kubakwa ahantu hanini.

2.5. HPMC ni electrolyte idafite ionic na polymeric, ihagaze neza mubisubizo byamazi hamwe nu munyu wicyuma na electrolytike kama, kandi irashobora kongerwaho ibikoresho byubaka igihe kirekire kugirango irambe neza.