Hydroxypropyl methylcellulose (HPMC mwachidule) ndi ether wosakaniza wofunikira, womwe ndi polima wosasungunuka m'madzi wopanda ionic, ndipo umagwiritsidwa ntchito kwambiri mu chakudya, mankhwala, makampani opanga mankhwala tsiku ndi tsiku, zokutira, polymerization reaction ndi zomangamanga monga dispersion suspension, thickening, emulsifying, stabilizing ndi zomatira, ndi zina zotero, ndipo pali kusiyana kwakukulu pamsika wamkati.
Hydroxypropyl methylcellulose imagwiritsidwa ntchito kwambiri mumakampani omanga ngati chopangira filimu, chomangira, chosungunula, chokhazikika, chothina, cholimbikitsira madzi, ndi zina zotero, ndipo chakhala chinthu chapamwamba kwambiri chomwe chakopa chidwi kuyambira pomwe chinayambitsidwa pamzerewu.
Hydroxypropylmethylcellulose
Dzina lonse la Chingerezi: Hydroxypropyl Methyl Cellulose Chidule cha Chingerezi: HPMC
Popeza HPMC ili ndi zinthu zabwino kwambiri monga kukhuthala, emulsification, kupanga filimu, colloid yoteteza, kusunga chinyezi, kumatira, kukana ma enzyme ndi kusagwira bwino ntchito kwa kagayidwe kachakudya, imagwiritsidwa ntchito kwambiri pakuphimba, kuchitapo kanthu kwa polymerization, zipangizo zomangira, kupanga mafuta, nsalu, chakudya, mankhwala, zinthu zadothi zomwe zimagwiritsidwa ntchito tsiku ndi tsiku, zipangizo zamagetsi ndi mbewu zaulimi ndi madipatimenti ena.
zipangizo zomangira
Mu zipangizo zomangira, HPMC kapena MC nthawi zambiri zimawonjezeredwa ku simenti, matope, ndi matope kuti ziwongolere kapangidwe kake komanso kusunga madzi.
Ingagwiritsidwe ntchito ngati:
1). Chogwirizira ndi cholumikizira cha tepi yomatira yopangidwa ndi gypsum;
2). Kumangirira njerwa, matailosi ndi maziko pogwiritsa ntchito simenti;
3). Stucco yopangidwa ndi plasterboard;
4). Pulasitiki yopangidwa ndi simenti;
5). Mu njira yochotsera utoto ndi utoto.
Zomatira za matailosi a ceramic
Zigawo za HPMC 15.3
Zigawo za Perlite 19.1
Mafuta a amide ndi mankhwala a cyclic thio compounds 2.0 parts
Dongo 95.4 zigawo
Zokometsera za silika (22μ) magawo 420
Magawo 450.4 a madzi
Amagwiritsidwa ntchito mu simenti yolumikizidwa ndi njerwa zosapangidwa, matailosi, miyala kapena simenti:
HPMC (digiri ya kufalikira 1.3) 0.3 magawo
Simenti ya Cattelan magawo 100
Mchenga wa silika magawo 50
Magawo 50 a madzi
Amagwiritsidwa ntchito ngati chowonjezera cha simenti yolimba kwambiri:
Simenti ya Cattelan magawo 100
Asbestos 5 zigawo
Kukonza mowa wa polyvinyl gawo limodzi
Calcium silicate magawo 15
Dongo magawo 0.5
Magawo 32 a madzi
Zigawo za HPMC 0.8
Makampani opanga utoto
Mu makampani opanga utoto, HPMC imagwiritsidwa ntchito kwambiri mu utoto wa latex ndi utoto wosungunuka m'madzi monga chopangira filimu, chokhuthala, chosakaniza, komanso chokhazikika.
Kuyimitsidwa kwa Polymerization ya PVC
Malo omwe amagwiritsa ntchito kwambiri zinthu za HPMC m'dziko langa ndi polymerization ya vinyl chloride. Mu polymerization ya vinyl chloride yoyimitsidwa, njira yofalitsira imakhudza mwachindunji ubwino wa utomoni wa PVC wa chinthucho ndi momwe amagwirira ntchito komanso zinthu zake; imatha kusintha kukhazikika kwa kutentha kwa utomoni ndikuwongolera kufalikira kwa tinthu tating'onoting'ono (ndiko kuti, kusintha kuchuluka kwa PVC). Kuchuluka kwa HPMC kumakhala 0.025% ~ 0.03 ya %.
Utomoni wa PVC wopangidwa ndi HPMC wapamwamba kwambiri, kuwonjezera pa kuonetsetsa kuti magwiridwe antchito akukwaniritsa muyezo wadziko lonse, ulinso ndi makhalidwe abwino akuthupi, mawonekedwe abwino kwambiri a tinthu tating'onoting'ono komanso khalidwe labwino kwambiri la rheological losungunuka.
makampani ena
Makampani ena makamaka ndi zodzoladzola, kupanga mafuta, sopo, zoumba zapakhomo ndi mafakitale ena.
sungunuka m'madzi
HPMC ndi imodzi mwa ma polima osungunuka m'madzi, ndipo kusungunuka kwa madzi ake kumagwirizana ndi kuchuluka kwa methoxyl group. Pamene kuchuluka kwa methoxyl group kuli kochepa, imatha kusungunuka mu alkali yamphamvu ndipo ilibe malo osungira madzi okwanira. Pamene kuchuluka kwa methoxyl kumawonjezeka, imakhala yotetezeka kwambiri ku kutupa kwa madzi ndipo imasungunuka mu alkali yosungunuka ndi alkali yofooka. Pamene kuchuluka kwa methoxyl kuli >38C, imatha kusungunuka m'madzi, komanso imatha kusungunuka mu halogenated hydrocarbons. Ngati periodic acid iwonjezeredwa ku HPMC, HPMC imafalikira mwachangu m'madzi popanda kupanga zinthu zosungunuka. Izi makamaka chifukwa chakuti periodic acid ili ndi magulu a dihydroxyl pamalo a ortho pa glycogen yofalikira.
Nthawi yotumizira: Meyi-30-2023