Kusunga madzi kwa hydroxypropyl methylcellulose ether
Kusungidwa kwa madzi mumtondo wowuma kumatanthauza kuthekera kwa matope kuti agwire ndikutseka madzi.Kukwezera kukhuthala kwa hydroxypropyl methylcellulose ether, kumapangitsa kuti madzi asungidwe bwino.Chifukwa mapangidwe a cellulose amakhala ndi ma hydroxyl ndi ether, ma atomu a okosijeni pamagulu a hydroxyl ndi ether amalumikizana ndi mamolekyu amadzi kuti apange zomangira za haidrojeni, kotero kuti madzi aulere amakhala omangika madzi ndikumangirira madzi, motero amathandizira kusunga madzi.
Kusungunuka kwa Hydroxypropyl Methyl Cellulose Ether
1. Coarse tinthu mapadi ether n'zosavuta kumwazikana m'madzi popanda agglomeration, koma mlingo kuvunda kwambiri wodekha.Ma cellulose ether pansi pa 60 mesh amasungunuka m'madzi kwa mphindi 60.
2. Fine tinthu cellulose ether n'zosavuta kumwazikana m'madzi popanda agglomeration, ndi Kusungunuka mlingo ndi zolimbitsa.Ma cellulose ether pamwamba pa 80 mesh amasungunuka m'madzi kwa mphindi zitatu.
3. Tinthu tating'onoting'ono ta cellulose etha timamwaza mwachangu m'madzi, kumasungunuka mwachangu, ndikupanga kukhuthala mwachangu.Ma cellulose ether pamwamba pa 120 mesh amasungunuka m'madzi kwa masekondi 10-30.
Kuwoneka bwino kwa tinthu tating'ono ta hydroxypropyl methylcellulose ether, kumapangitsa kuti madzi asungidwe bwino.Pamwamba pa coarse-grained cellulose ether amasungunuka atangokumana ndi madzi ndikupanga chodabwitsa cha gel.Guluuwo amakulunga zinthuzo kuti mamolekyu amadzi asapitirire kulowa.Nthawi zina sizingathe kumwazikana ndi kusungunuka ngakhale zitakhala nthawi yayitali, kupanga njira yamtambo yamtambo kapena agglomeration.Tinthu tating'onoting'ono timabalalitsa ndikusungunuka mutangolumikizana ndi madzi kuti mupange mawonekedwe owoneka bwino.
Mtengo wa PH wa hydroxypropyl methylcellulose ether (kuchepetsa kapena kuyambika kwamphamvu)
Mtengo wa pH wa opanga hydroxypropyl methylcellulose ether kunyumba ndi kunja kwenikweni umayendetsedwa pafupifupi 7, yomwe ili mu acidic state.Chifukwa akadali ambiri amtundu wa mphete za anhydroglucose m'maselo a cellulose ether, mphete ya anhydroglucose ndiye gulu lalikulu lomwe limayambitsa kuchepa kwa simenti.Mphete ya anhydroglucose imatha kupanga ayoni a calcium mu simenti ya hydration solution kupanga shuga-calcium molecular compounds, kuchepetsa ndende ya calcium ion panthawi ya simenti ya simenti, kuteteza mapangidwe ndi mpweya wa calcium hydroxide ndi makristasi amchere a calcium, ndikuchedwa kutulutsa madzi. simenti.ndondomeko.Ngati mtengo wa PH uli mu alkaline, matope amawoneka ngati amphamvu kwambiri.Tsopano mafakitale ambiri amagwiritsa ntchito sodium carbonate kuti asinthe pH mtengo.Sodium carbonate ndi mtundu wa wothandizila wofulumira.Sodium carbonate bwino ntchito pamwamba pa simenti particles, amalimbikitsa mgwirizano pakati particles, ndi zina bwino mamasukidwe akayendedwe a matope.Pa nthawi yomweyo, sodium carbonate mwamsanga Chili ndi ayoni kashiamu mu matope kulimbikitsa mapangidwe ettringite, ndi simenti coagulates mofulumira.Chifukwa chake, mtengo wa pH uyenera kusinthidwa malinga ndi makasitomala osiyanasiyana pakupanga kwenikweni.
Katundu Wophunzitsira Mpweya wa Hydroxypropyl Methyl Cellulose Ether
Mphamvu yolowetsa mpweya ya hydroxypropyl methylcellulose ether makamaka chifukwa cellulose ether ndi mtundu wa surfactant.The interfacial ntchito ya mapadi efa makamaka zimachitika pa mpweya-zamadzimadzi-olimba mawonekedwe.Choyamba, kumayambiriro mpweya thovu, kenako kubalalitsidwa ndi Wetting kwenikweni.Ma cellulose ether ali ndi magulu a alkyl, omwe amachepetsa kwambiri kugwedezeka kwapamadzi ndi mphamvu yamadzi, zomwe zimapangitsa kuti zikhale zosavuta kupanga tinthu ting'onoting'ono tating'ono tatsekeka panthawi yogwedeza yamadzimadzi.
Gel Properties ya Hydroxypropyl Methyl Cellulose Ether
Pambuyo pa kusungunuka kwa hydroxypropyl methylcellulose ether mumatope, magulu a methoxyl ndi hydroxypropyl pa unyolo wa maselo adzachitapo kanthu ndi ayoni a calcium ndi ayoni a aluminiyamu mu slurry kuti apange gel osakaniza ndikudzaza matope a simenti., kukonza kuphatikizika kwa matope, sewerani gawo la kudzaza kosinthika ndi kulimbikitsa.Komabe, matrix ophatikizana akapanikizika, polima sangathe kugwira ntchito yolimba, kotero mphamvu ndi kupindika kwa matope kumachepa.
Kupanga Mafilimu a Hydroxypropyl Methyl Cellulose Ether
Pambuyo pa hydroxypropyl methyl cellulose ether kuwonjezeredwa kwa hydration, filimu yopyapyala ya latex imapangidwa pakati pa tinthu tating'ono ta simenti.Kanemayu ali ndi kusindikiza komanso kumapangitsa kuuma kwa matope.Chifukwa cha kusungidwa bwino kwa madzi a hydroxypropyl methylcellulose ether, mamolekyu okwanira amadzi amasungidwa mkati mwa matope, potero kuonetsetsa kuti simentiyo imawumitsa simenti ndikukula kwamphamvu, kuwongolera mphamvu yolumikizira matope, komanso nthawi yomweyo. kumapangitsa kuti matope azikhala ogwirizana, amapangitsa kuti matope akhale ndi pulasitiki yabwino komanso kusinthasintha, komanso amachepetsa kuchepa ndi kusinthika kwa matope.
Nthawi yotumiza: May-23-2023