Focus on Cellulose ethers

Yadda ake Ƙara Hydroxyethyl Cellulose zuwa Paint

Hydroxyethyl Cellulose (HEC) Yana da ayyuka da yawa, ciki har da: kauri, dakatarwa, ɗaure, emulsifying, yin fim, daidaitawa, tarwatsawa, riƙe ruwa, da ƙirƙirar colloid masu kariya. Yana da matuƙar narkewa a cikin ruwan zafi ko sanyi, ana iya ƙirƙira shi cikin mafita a cikin kewayon viscosities da yawa, kuma yana da kyakkyawan juriya ga narkar da electrolytes.

hanyar daya)
Ƙara kai tsaye lokacin da ake niƙa pigment:

1. Ƙara ruwa mai tsabta mai dacewa zuwa babban guga wanda aka sanye shi da babban mai tayar da hankali (gaba ɗaya, ethylene glycol, wakili na wetting da wakili na fim an ƙara a cikin wannan mataki).
2. Fara motsawa akai-akai a cikin ƙananan gudu kuma a hankali a hankali zazzage hydroxyethyl cellulose a ko'ina cikin bayani.
3. Ci gaba da motsawa har sai an jike dukkan kwayoyin halitta.
4. Sa'an nan kuma ƙara antifungal wakili, alkaline additives kamar pigment dispersing aids, ammonia ruwa.
5. Dama har sai duk hydroxyethyl cellulose ya narke gaba daya (dankowar maganin yana ƙaruwa sosai) kafin ƙara wasu abubuwan da ke cikin dabarar, kuma a niƙa har sai ya zama fenti.

Hanya na Biyu)
An sanye shi da giya don amfani:

Wannan hanya ita ce ta farko da za a shirya ruwan inabi mai ban sha'awa tare da mafi girma, sa'an nan kuma ƙara shi zuwa fenti na latex. Amfanin wannan hanya shine cewa yana da mafi girman sassauci kuma ana iya ƙara shi kai tsaye zuwa fenti da aka gama, amma ana buƙatar ajiya mai kyau. Matakan sun yi kama da matakai na 1-4 a cikin hanyar (1), bambancin shine cewa babu buƙatar babban mai tayar da hankali, kuma kawai wasu masu tayar da hankali tare da isasshen iko don kiyaye hydroxyethyl cellulose daidai tarwatsa a cikin bayani za a iya amfani da su. . Ci gaba da motsawa akai-akai har sai an narkar da shi gaba daya a cikin bayani mai danko. Ya kamata a lura da cewa dole ne a ƙara wakili na antifungal zuwa uwar barasa da wuri-wuri.

Hanya (3)
Don phenology-kamar porridge:

Tun da kwayoyin kaushi ne matalauta kaushi ga hydroxyethyl cellulose, wadannan kwayoyin kaushi za a iya amfani da su shirya porridge. Abubuwan da ake amfani da su na kwayoyin halitta da aka fi amfani da su sune ruwayen ruwa irin su ethylene glycol, propylene glycol, da masu yin fim (misali, hexanediol ko Butyl CARBITOL acetate) a cikin tsarin fenti. Ruwan kankara shima rashin ƙarfi ne, don haka ana amfani da ruwan ƙanƙara tare da ruwa mai laushi don shirya porridge.

Za a iya ƙara porridge-kamar hydroxyethyl cellulose kai tsaye zuwa fenti. Hydroxyethyl cellulose ya kumbura sosai a cikin jihar porridge. Idan an ƙara shi a fenti, ya narke nan da nan kuma ya yi kauri. Bayan ƙarawa, har yanzu yana da mahimmanci don ci gaba da motsawa har sai hydroxyethyl cellulose ya narkar da shi gaba daya kuma ya zama daidai.

Gabaɗaya, ana haɗe porridge tare da sassa shida na kaushi na halitta ko ruwan kankara da wani ɓangare na hydroxyethyl cellulose. Bayan kamar minti 5-30, hydroxyethyl cellulose zai zama hydrolyzed kuma ya kumbura a fili. A lokacin rani, yawan zafin jiki na ruwa yana da yawa, kuma bai dace da porridge ba.

Abubuwan da ake buƙatar kulawa lokacin shirya ruwan inabi na hydroxyethyl cellulose:

Hydroxyethyl cellulose gabaɗaya foda ne da aka sarrafa da kuma kayan granular. Muddin an lura da waɗannan al'amura, yana da sauƙi a magance da kuma narke cikin ruwa.

1. Kafin da kuma bayan ƙara hydroxyethyl cellulose, ci gaba da motsawa har sai bayani ya zama cikakke kuma bayyananne.
2. Dole ne a siffata shi a cikin ganga mai gauraya sannu a hankali. Kada kai tsaye ƙara hydroxyethyl cellulose wanda aka kafa zuwa dunƙule ko ƙwallo a cikin ganga mai gauraya.
3. Ruwan zafin jiki da darajar pH na ruwa suna da dangantaka mai mahimmanci tare da rushewar hydroxyethyl cellulose, don haka ya kamata a biya kulawa ta musamman.
4. Kada a taɓa ƙara wasu abubuwa na alkaline zuwa gaurayawan kafin a jika foda hydroxyethyl cellulose da ruwa. Kiwon pH kawai bayan jika zai taimaka a rushe.
5. Kamar yadda zai yiwu, ƙara wakili na antifungal da wuri-wuri.
6. Lokacin amfani da high-viscosity hydroxyethyl cellulose, maida hankali na uwar barasa kada ya zama sama da 2.5-3% (ta nauyi), in ba haka ba uwar barasa zai yi wuya a rike.


Lokacin aikawa: Nuwamba-15-2022
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