Hydroxypropyl methylcellulose nkibikoresho byubaka

Urwego rwo kubaka kole nikibazo kibangamira abakiriya.

1. Urwego rwubwubatsi rugomba kuzirikana ibikoresho fatizo. Impamvu nyamukuru yo gushiraho urwego ruhuza ni ukudahuza hagati ya emulion ya acrylic na hydroxypropyl methylcellulose (HPMC).

2. Kubera igihe cyo kuvanga kidahagije; ibyuma byubaka nabyo bifite ikibazo cyimiterere mibi. Mu bikoresho byubaka, ni ngombwa gukoresha ako kanya kawa hydroxypropyl methylcellulose (HPMC) kuko HPMC ikwirakwizwa mumazi gusa kandi ntishonga. Nyuma yiminota igera kuri 2, ubwiza bwamazi bwiyongera buhoro buhoro, butanga igisubizo kiboneye cyuzuye viscous colloidal. Ibicuruzwa bishyushye birashobora gukwirakwira vuba mumazi abira hanyuma bikabura mumazi abira mugihe uhuye namazi akonje. Iyo ubushyuhe bugabanutse ku bushyuhe runaka, kugabanuka kwijimye bibaho kugeza igisubizo kiboneye cyuzuye viscous colloidal. Birasabwa cyane gukoresha kg 2-4 ya hydroxypropyl methylcellulose (HPMC) mubikoresho byubaka.

3. Ibintu bifatika bya hydroxypropyl methylcellulose (HPMC) mubikoresho byubaka birahagaze neza, ingaruka zo kurwanya mildew nibyiza cyane, kandi ntabwo bizangizwa nimpinduka zagaciro ka pH. Ubukonje burashobora gukoreshwa hagati ya 100.000 s na 200.000 s, ariko mubikorwa Iyo bikoze, uko ubukonje buri hejuru, nibyiza. Viscosity ihwanye neza nimbaraga zo gukomeretsa zifatika. Iyo hejuru ya viscosity, niko imbaraga zo kwikuramo zigabanuka. Mubisanzwe, ibishishwa ni 100.000.

Noneho mubikorwa byo gushushanya, gukoresha hydroxypropyl methylcellulose birakomeye.

Nigute ushobora gukoresha ingano? Binyuze muri:

Ako kanya vanga CMC namazi kugirango ukore paste imeze nkibishishwa hanyuma ushire kuruhande. Mugihe ushyiraho paste ya CMC, koresha mixer kugirango wongeremo amazi akonje mukibindi. Iyo mixer itangiye, gahoro gahoro hanyuma uringanize karubike ya carboxymethylcellulose mumatungo yibigize, hanyuma ukomeze kubyutsa kugirango uhuze neza carboxymethylcellulose namazi hanyuma ushonga burundu carboxymethylcellulose. Iyo ushonga ikibaho, akenshi birakenerwa kuyitatanya neza kandi ugakomeza kubyutsa kugirango birusheho "gukumira no gushiraho ikibaho cyumuyoboro iyo gihuye n’amazi, kugabanya ikibazo cyo gusesa imbaho" no kunoza ubushobozi bwikibaho. . Igipimo cyo gusesa komite nyobozi.

Igihe cyo kuvanga gitandukanye nigihe bifata kugirango CMC isenyuke burundu. Ibi nibisobanuro bibiri. Muri rusange, igihe cyo kuvanga ni kigufi cyane kuruta igihe cyo gusesa burundu CMC, bitewe nuburyo bwihariye. Igihe cyo kuvanga kigenwa hashingiwe ku bipimo bifatika. Iyo CMC ikwirakwijwe neza mumazi nta agglomeration igaragara, kuvanga birarangira kugirango CMC namazi byinjire.

Hariho impamvu nyinshi zigihe gisabwa cyo gusesa burundu CMC:

(1) CMC n'amazi byahujwe rwose, kandi nta bikoresho bikomeye byo gutandukanya amazi-hagati;

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(3) Nyuma yo kuvanga, paste idafite ibara kandi iragaragara rwose, kandi nta bice biri muri paste. Bifata amasaha 10 kugeza kuri 20 uhereye igihe CMC ishyizwe muruvange rwibikoresho byamazi namazi kugeza bishonge burundu.