Popeza katundu wa hydroxypropyl methylcellulose ndi ofanana ndi ena madzi sungunuka ethers, angagwiritsidwe ntchito zokutira emulsion ndi madzi sungunuka utomoni ❖ kuyanika zigawo zikuluzikulu monga filimu kupanga wothandizira, thickener, emulsifier ndi stabilizer, etc., amene amapereka ❖ kuyanika filimu kukana bwino kwa abrasion.Kupaka kofanana ndi kumamatira, komanso kusinthasintha kwapamwamba, kukhazikika kwa ma acid ndi maziko, komanso kugwirizana ndi utoto wachitsulo.
Popeza HPMC ili ndi malo okwera kwambiri a gel kuposa MC, imalimbananso kwambiri ndi kuukira kwa bakiteriya kuposa ma cellulose ethers, motero imatha kugwiritsidwa ntchito ngati chowonjezera chopangira zokutira zamadzimadzi emulsion.HPMC ali wabwino mamasukidwe akayendedwe kusunga bata ndi dispersibility kwambiri, motero HPMC ndi makamaka oyenera ngati dispersant mu zokutira emulsion.
Kugwiritsa ntchito hydroxypropyl methyl cellulose pamakampani okutira ndi motere.
1.various mamasukidwe akayendedwe HPMC kasinthidwe utoto kuvala kukana, kutentha kukana, odana ndi bakiteriya kufotokoza, kutsuka kukana ndi kukhazikika kwa zidulo ndi zapansi ndi bwino;itha kugwiritsidwanso ntchito ngati chodulira utoto chokhala ndi methanol, ethanol, propanol, isopropyl mowa, ethylene glycol, acetone, methyl ethyl ketone kapena diketone mowa thickener;HPMC zopangidwa emulsified zokutira ndi zabwino chonyowa abrasion;HPMC kuposa HEC ndi EHEC ndi CMC monga HPMC ali ndi zotsatira zabwino kuposa HEC ndi EHEC ndi CMC monga utoto thickener.
2.M'malo mwa hydroxypropyl methyl cellulose imakhala yabwino kukana kuukira kwa bakiteriya kusiyana ndi kutsika kochepa, ndipo imakhala ndi kukhazikika kwa viscosity mu polyvinyl acetate thickeners.Ma cellulose ethers ena akusungidwa chifukwa cha kuwonongeka kwa unyolo wa cellulose ether ndikupangitsa kuti kukhuthala kwa ma cellulose kuchepe.
3.paint stripper ikhoza kusungunuka m'madzi HPMC (pomwe methoxy ndi 28% mpaka 32%, hydroxypropoxy ndi 7% mpaka 12%), dioxymethane, toluene, paraffin, ethanol, kasinthidwe ka methanol, idzagwiritsidwa ntchito pamwamba, ndi kukhuthala kofunikira ndi kusakhazikika.Chodulira utotochi chimachotsa utoto wamba wopopera, ma vanishi, ma enamel, ndi ma epoxy esters, epoxy amides, catalyzed epoxy amides, acrylates, ndi zina zambiri. Utoto wambiri ukhoza kusenda mumasekondi pang'ono, utoto wina umafunika 10 ~ 15min kapena kupitilira apo. chodulira utoto ndichoyenera makamaka pamitengo.
4.Water emulsion utoto ukhoza kupangidwa ndi 100 magawo a inorganic kapena organic pigment, 0,5 ~ 20 magawo a madzi osungunuka alkyl cellulose kapena hydroxyalkyl cellulose ndi 0.01 ~ 5 mbali za polyoxyethylene ether kapena ester ester.Mwachitsanzo, colorant ndi akamagwira kusakaniza 1.5 mbali HPMC, 0,05 mbali polyethylene glycol alkyl phenyl efa, 99,7 mbali titaniyamu woipa ndi 0,3 mbali mpweya wakuda.Kusakaniza kumalimbikitsidwa ndi magawo 100 a 50% olimba polyvinyl acetate kuti apeze zokutira, ndipo palibe kusiyana pakati pa filimu yowuma yowuma yomwe imapangidwa poyiyika pa pepala lakuda ndikuyipukuta mopepuka ndi burashi.
Nthawi yotumiza: May-20-2022