Tun da kaddarorin hydroxypropyl methylcellulose sun yi kama da sauran ethers masu narkewa na ruwa, ana iya amfani da su a cikin kayan kwalliyar emulsion da abubuwan da aka gyara na guduro mai narkewa a matsayin wakili na fim, thickener, emulsifier da stabilizer, da sauransu, wanda ke ba da fim ɗin shafi. mai kyau abrasion juriya. Rufe mai kama da mannewa, da ingantaccen tashin hankali, kwanciyar hankali ga acid da tushe, da daidaitawa tare da pigments na ƙarfe.
Tun da HPMC yana da mafi girma gel batu fiye da MC, shi ne kuma mafi resistant zuwa kwayan harin fiye da sauran cellulose ethers, don haka za a iya amfani da a matsayin thickening wakili ga ruwa emulsion coatings. HPMC yana da kyau danko ajiya kwanciyar hankali da kyau kwarai dispersibility, don haka HPMC ne musamman dace a matsayin dispersant a emulsion coatings.
Aikace-aikacen hydroxypropyl methyl cellulose a cikin masana'antar shafa shine kamar haka.
1.various danko HPMC sanyi fenti lalacewa juriya, high zafin jiki juriya, anti-kwayan cuta bayani, wanka juriya da kwanciyar hankali ga acid da tushe ne mafi alhẽri; Hakanan za'a iya amfani dashi azaman mai cire fenti mai ɗauke da methanol, ethanol, propanol, isopropyl barasa, ethylene glycol, acetone, methyl ethyl ketone ko diketone barasa thickener; HPMC da aka ƙirƙira kayan kwalliyar emulsified suna da kyakkyawan lalatar rigar; HPMC fiye da HEC da EHEC da CMC kamar yadda HPMC ya fi HEC da EHEC da CMC a matsayin mai kauri.
2.Highly maye gurbin hydroxypropyl methyl cellulose yana da mafi kyawun juriya ga harin kwayan cuta fiye da ƙananan maye gurbin, kuma yana da kwanciyar hankali mafi kyau a cikin polyvinyl acetate thickeners. Sauran ethers na cellulose suna cikin ajiya saboda sarkar lalatawar ether cellulose kuma suna rage danko mai rufi.
3.paint stripper na iya zama ruwa mai narkewa HPMC (inda methoxy shine 28% zuwa 32%, hydroxypropoxy shine 7% zuwa 12%), dioxymethane, toluene, paraffin, ethanol, daidaitawar methanol, za a yi amfani da shi zuwa saman madaidaiciya, tare da danko da ake bukata. Wannan fenti yana cire mafi yawan fentin fenti na al'ada, varnishes, enamels, da wasu esters epoxy, epoxy amides, catalyzed epoxy amides, acrylates, da dai sauransu. Yawancin fenti na iya cirewa a cikin ƴan daƙiƙa kaɗan, wasu fenti suna buƙatar 10 ~ 15min ko fiye, wannan. fenti stripper ya dace musamman ga saman itace.
4.Water emulsion Paint za a iya hada da 100 sassa na inorganic ko Organic pigment, 0.5 ~ 20 sassa na ruwa-mai narkewa alkyl cellulose ko hydroxyalkyl cellulose da 0.01 ~ 5 sassa na polyoxyethylene ether ko ether ester. Alal misali, ana samun mai launi ta hanyar haɗa sassan 1.5 na HPMC, sassa 0.05 na polyethylene glycol alkyl phenyl ether, 99.7 sassa na titanium dioxide da 0.3 sassa na carbon baki. Sannan ana motsa cakuda da sassa 100 na 50% m polyvinyl acetate don samun sutura, kuma babu bambanci tsakanin busasshen fim ɗin da aka kafa ta hanyar shafa shi a kan takarda mai kauri kuma a shafa shi da sauƙi tare da goga.
Lokacin aikawa: Mayu-20-2022