Indlela yokusebenzisa i-hydroxyethyl cellulose kupende we-latex
1. I-Hydroxyethyl cellulosenge-porridge efana ne-phenology: ngoba i-hydroxyethyl cellulose ayincibiliki kalula ezincibilikisini eziphilayo, ezinye izincibilikisi eziphilayo zingasetshenziswa ukuhlomisa i-porridge. Amanzi eqhwa nawo ayincibilikisi embi, ngakho-ke avame ukusetshenziswa e-porridge enezincibilikisi eziphilayo. I-hydroxyethyl cellulose yesimo se-congee ingafakwa ngqo kupende we-emulsii. I-Hydroxyethyl cellulose igcwele ngesimo se-porridge. Uma ifakwa kupende, iyancibilika ngokushesha futhi iqine. Qhubeka uvuselela kuze kube yilapho i-hydroxyethyl cellulose ihlakazeke ngokuphelele futhi ichitheke. I-porridge evamile yenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose. Ngemva kwemizuzu engaba ngu-5-30, i-hydroxyethyl cellulose iyancibilika futhi ikhuphuke ngokubonakalayo. (Kuphakanyiswa ukuthi umswakama wamanzi ehlobo uphakeme kakhulu ukuthi ungasetshenziselwa i-porridge.)
2. Faka i-hydroxyethyl cellulose ngqo ku-pigment yokugaya: le ndlela ilula futhi isikhathi sifushane. Izindlela ezinemininingwane yilezi ezilandelayo:
(1) Engeza amanzi ahlanzekile afanele ku-VAT ephezulu kufanele unciphise i-agitator (ngokuvamile, izithasiselo ezakha ifilimu kanye nezinto zokumanzisa ziyangezwa ngalesi sikhathi)
(2) Qala ukuxuba ngesivinini esiphansi ngaphandle kokuma bese ufaka kancane kancane i-hydroxyethyl cellulose ngokulinganayo
(3) Qhubeka uvuselela kuze kube yilapho zonke izinhlayiya zihlakazeke ngokulinganayo futhi zimanzi
(4) Engeza isithibi sesikhunta bese ulungisa inani le-PH
(5) Hlanganisa kuze kube yilapho yonke i-hydroxyethyl cellulose incibilika ngokuphelele (i-viscosity yesisombululo iyanda kakhulu), bese ufaka ezinye izingxenye kufomula, bese ugaya kuze kube yilapho iba upende.
3 i-hydroxyethyl cellulose enoketshezi lukamama olulindile: le ndlela iqale ifakwe ukuhlushwa okuphezulu koketshezi lukamama, bese ifaka upende we-latex, inzuzo yale ndlela iguquguquka kakhudlwana, ingangeza ngqo imikhiqizo eqediwe ngopende, kodwa endaweni yokugcina efanele. Izinyathelo nezindlela zifana nezinyathelo (1) – (4) ku-Method 2, ngaphandle kokuthi i-agitator yokusika ephezulu ayidingeki futhi kusetshenziswa ama-agger ambalwa kuphela anamandla anele okugcina imicu ye-hydroxyethyl ihlakazeke ngokulinganayo esixazululweni. Qhubeka uvuselela uze uncibilike ngokuphelele ube yisisombululo esijiyile. Qaphela ukuthi: i-antimildew agent kumele ifakwe ngokushesha okukhulu ku-alcohol kamama kapende.
Izinto ezi-4 ezidinga ukunakwa lapho kuhlonyiswa utshwala obuncane be-hydroxyethyl cellulose
Njengoba i-hydroxyethyl cellulose iyimpuphu ehlanganisiwe elashwe kahle, kulula ukuyiphatha nokuyincibilikisa emanzini ngalezi zinyathelo zokuphepha ezilandelayo.
(1) Ngaphambi nangemva kokufaka i-hydroxyethyl cellulose, kumele iqhubeke ivuselela, kuze kube yilapho ikhambi selicacile futhi licacile ngokuphelele.
(2) Kuyadingeka ukuhluza i-hydroxyethyl cellulose ethangini lokuxuba kancane. Ungayifaka ngobuningi obukhulu noma ngqo ethangini lokuxuba.
(3) Ukuncibilika kwe-hydroxyethyl cellulose kusobala ukuthi kuhlobene nokushisa kwamanzi kanye nenani le-pH yamanzi, ngakho-ke kufanele kunakwe ngokukhethekile.
(4) Ungafaki ezinye izinto eziyisisekelo engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder ifakwe emanzini. Ukuphakamisa i-pH ngemva kokucwilisa kusiza ukuncibilika.
(5) Ngangokunokwenzeka, ukungezwa kusenesikhathi kwesithiyo sokukhunta.
(6) Uma usebenzisa i-hydroxyethyl cellulose ene-viscosity ephezulu, ukugcwala kotshwala obungumama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala obungumama kunzima ukubusebenzisa.
Izici ezithinta ukujiya kopende we-latex:
(1) Ngenxa yokuxubha ngokweqile kanye nomswakama owedlulele lapho kuhlakazeka.
(2) inani lezinye izinto zokujiya zemvelo kufomula yopende kanye nesilinganiso senani elihambisana naloi-hydroxyethyl cellulose.)
(3) inani le-activator engaphezulu kanye namanzi kufomula yopende liyavumelana.
(4 ekuhlanganisweni kwe-latex, okuqukethwe kwe-catalyst oxide okusele kwenombolo.
Ukuguguleka kwe-microbial ye-thickener.
6 enkambisweni yokwenza upende, ukulandelana kwezinyathelo zokwengeza isithambisi kufanelekile.
Uma amabhamuza omoya esala kakhulu kupende, kulapho i-viscosity iphakama khona
Isikhathi sokuthunyelwe: Ephreli-25-2024