Njengoba izakhiwo ze-hydroxypropyl methylcellulose zifana nezinye i-ethers ezincibilika emanzini, zingasetshenziswa ezimbozweni ze-emulsion kanye nezingxenye ze-resin ezincibilika emanzini njenge-ejenti eyakha ifilimu, i-thickener, i-emulsifier kanye ne-stabilizer, njll., enikeza ifilimu yokumboza ukumelana okuhle nokuguguleka. Ukumbozwa kanye nokunamathela okufanayo, kanye nokucindezelwa kobuso okuthuthukisiwe, ukuzinza kuma-acid kanye nezisekelo, kanye nokuhambisana nemibala yensimbi.
Njengoba i-HPMC inephuzu lejeli eliphakeme kune-MC, iphinde imelane nokuhlaselwa ngamagciwane kunezinye i-cellulose ethers, ngakho-ke ingasetshenziswa njenge-ejenti yokujiya kwezembozo ze-emulsion zamanzi. I-HPMC inokuqina okuhle kokugcina i-viscosity kanye nokuhlakazeka kwayo okuhle kakhulu, ngakho-ke i-HPMC ifaneleka kakhulu njenge-dispersant kwezembozo ze-emulsion.
Ukusetshenziswa kwe-hydroxypropyl methyl cellulose embonini yokuhlanganisa kungokulandelayo.
1. Ukujiya okuhlukahlukene kokumelana nokuguguleka kopende kokumiswa kwe-HPMC, ukumelana nokushisa okuphezulu, incazelo yokulwa namagciwane, ukumelana nokuwasha kanye nokuqina kwama-asidi nezisekelo kungcono; ingasetshenziswa futhi njengesihlungi sopende esiqukethe i-methanol, i-ethanol, i-propanol, i-isopropyl alcohol, i-ethylene glycol, i-acetone, i-methyl ethyl ketone noma i-diketone alcohol thickener; Izembozo ezenziwe nge-HPMC ezihlanganisiwe zinokuguguleka okumanzi okuhle kakhulu; i-HPMC kune-HEC ne-EHEC kanye ne-CMC njengoba i-HPMC inomphumela ongcono kune-HEC ne-EHEC kanye ne-CMC njenge-thickener yopende.
2. I-hydroxypropyl methyl cellulose efakwe esikhundleni esiphezulu inokumelana okungcono nokuhlaselwa ngamagciwane kunokufakwa esikhundleni okuphansi, futhi inokuqina okungcono kwe-viscosity kuma-thickeners e-polyvinyl acetate. Amanye ama-ether e-cellulose asesitorejini ngenxa yokuwohloka kwe-cellulose ether futhi kwenza i-viscosity yokumboza inciphe.
3. i-paint stripper ingaba yi-HPMC encibilikayo emanzini (lapho i-methoxy ingu-28% kuya ku-32%, i-hydroxypropoxy ingu-7% kuya ku-12%), i-dioxymethane, i-toluene, i-paraffin, i-ethanol, i-methanol configuration, izosetshenziswa endaweni eqondile, nge-viscosity kanye nokuguquguquka okudingekayo. Le paint stripper isusa upende oluvamile oluningi, ama-varnish, ama-enamel, kanye nama-ester athile e-epoxy, ama-epoxy amide, ama-epoxy amide afakwe i-catalyzed, ama-acrylates, njll. Upende omningi ungasuswa ngemizuzwana embalwa, amanye upende adinga imizuzu eyi-10 ~ 15 noma ngaphezulu, le paint stripper ifaneleka kakhulu ezindaweni zokhuni.
4. Upende we-emulsion wamanzi ungenziwa izingxenye eziyi-100 ze-pigment engakhiqizi noma ephilayo, izingxenye eziyi-0.5 ~ 20 ze-alkyl cellulose encibilikayo emanzini noma i-hydroxyalkyl cellulose kanye nezingxenye eziyi-0.01 ~ 5 ze-polyoxyethylene ether noma i-ether ester. Isibonelo, umbala utholakala ngokuxuba izingxenye eziyi-1.5 ze-HPMC, izingxenye eziyi-0.05 ze-polyethylene glycol alkyl phenyl ether, izingxenye eziyi-99.7 ze-titanium dioxide kanye nezingxenye eziyi-0.3 ze-carbon black. Ingxube ibe isivuselelwa ngezingxenye eziyi-100 ze-polyvinyl acetate eqinile engu-50% ukuze kutholakale ungqimba, futhi akukho mehluko phakathi kwefilimu yokugqoka eyomile eyenziwe ngokuyisebenzisa ephepheni elijiyile bese uyihlikihla kancane ngebhulashi.
Isikhathi sokuthunyelwe: Meyi-20-2022