HPMC (hydroxypropyl methylcellulose) ndi zowonjezera zowonjezera pomlermer zomwe zimagwiritsidwa ntchito kwambiri popanga zida zomangira, makamaka muzinthu zamimenti. Kukhazikitsidwa kwa HPMC kumatha kusintha zinthu zomwe zimachitika kwa simenti, kuphatikizapo kukhazikika kwa kukhazikika, kukonzanso kugwirira ntchito ma hydration njira zowonongeka.
Mankhwala ndi thupi la hpmc
HPMC ndi njira yopanga polymer yosinthidwa kuchokera ku cellulose. Kupanga kwake kwa maselo kumaphatikizapo methyl ndi hydroxypyupyl, ndikupereka kususuka kwapadera, kukulira madzi, kusungunuka kwamadzi komanso katundu wamavidiyo. Zinthu zake zazikulu zimaphatikizapo:
Kusunga kwamadzi kwakukulu: HPMC ili ndi mphamvu zambiri zamadzi ndipo zimatha kupanga makanema osungirako madzi mkati mwazinthuzo kuti muchepetse madzi.
Kukula Kwakukulu: HPMC imatha kuwonjezera mafayilo a slurry, potero ndikuwongolera kugwiritsidwa ntchito kwake.
Kapangidwe ka kama filimu: kuthekera kwake kwabwino kwa mafilimu kumatha kupanga filimu yosinthika pamtunda, kupereka chitetezo chowonjezera.
Njira yamakina a HPMC pa kuwonongeka kwa zinthu za simenti
1. Kusungidwa kwamadzi ndikuchepetsa ming'alu youma
Zipangizo zomwe Cepeestory imakumana ndi voliyumu yofunika pakuuma, makamaka chifukwa cha kutayika kwa madzi ndikumapukuta chifukwa cha kupweteka kwa hydration. Kuyanika ming'alu yochepa nthawi zambiri kumachitika chifukwa cha madzi opukutira mwachangu mu simenti molunjika panthawi yolimbana, ndikupangitsa kuchuluka kwa shricks, potero kumayambitsa ming'alu. Kusunga kwamadzi kwa HPMC kumagwira ntchito yofunika kwambiri pankhaniyi:
Amachepetsa madzi am'madzi: hpmc amasunga chinyontho mu simenti slorry, kotero akuchepetsa madzi omasulira. Izi sizimangowonjezera nthawi yayitali yothandizira hydratetion, komanso imachepetsa kufota ochulukitsa chifukwa cha madzi.
Yunifolomu za machitidwe akuti: Popeza ma hpmc amapereka malo okhazikika m'madzi, tinthu tating'onoting'ono timatha kugwiritsa ntchito yunifolomu yokwanira, kuchepetsa kusiyana kwamkati komanso kuchepetsa chiopsezo cha kuwonongeka chifukwa cha kufooka.
2. Sinthani mamasukidwe ndikugawa yunifolomu ya zinthu
HPMC ili ndi mphamvu yokulirapo, yomwe imakonda kukonza zogwiritsira ntchito komanso kufanana ndi zinthu zochokera kwa simenti.
Kuchulukitsa kwa Isccess: HPMC imawonjezera mafayilo a slurry, kukonzanso kugwirira ntchito pakugwiritsa ntchito, kulola kuti malo ochepetsetsa bwino ndikudzaza nkhungu kapena ming'alu, kuchepetsa maula komanso madera osagwirizana.
Kugawidwa yunifolomu: pakukulitsa mafayilo a slurry, hpmc amapanga kufalitsa mafakitale ndi ulusi wocheperako ngakhale, zomwe zimapangitsa kuti zigwirizane ndi zovuta zomwe zimapangika chifukwa cha kupsinjika komwe kumachitika.
3. EMharee Cocting Katundu Wopanga Makanema ndi Chitetezo cha Pansi
Kapangidwe ka kama filimuyo ya HPMC ikuthandizani kuti apange mawonekedwe oteteza pamtunda, omwe ali ndi zotsatira zabwino pochepetsa ming'alu:
Chitetezo cha Pansi: Njira yosinthira filimu yopangidwa ndi HPMC pamtunda ikhoza kuteteza mawonekedwe kuti asakokoloweke ndi kupezeka kwadzidzidzi ndi kuwonongeka kwaming'alu.
Kusinthasintha kosinthika: Kanemayu ali ndi gawo lina la kusinthasintha ndipo amatha kuyamwa kupsinjika pamavuto pang'ono, potero kupewa kapena kuchepetsa kukula kwa ming'alu.
4. Sungani njira ya hydration
HPMC imatha kuyang'anira njira ya simenti ya simenti, yomwe imagwira gawo lofunikira pakuchepetsa kupsinjika chifukwa cha mankhwala osagwirizana:
Kutulutsa kwapang'onopang'ono kwa pang'onopang'ono: hpmc kungachepetse kuchitira mwachangu, kulola madzi mu simenti kuti atulutsidwe pang'onopang'ono, motero kupereka yunifolomu yambiri komanso malo otetezeka. Kumasulidwa kwapang'onopang'ono kumachepetsa kuponderezedwa chifukwa cha mankhwala a hydictition, potero kuchepetsa chiopsezo cha kusweka.
Zitsanzo za ntchito za HPMC muzolinga zosiyanasiyana za simenti
HPMC imagwiritsidwa ntchito kwambiri m'magawo a simenti, kuphatikiza koma osangokhala odzichepetsa okha, khoma lakunja, mativa ndi zinthu zokonza ndi konkriti. Izi ndi zitsanzo zina mwatsatanetsatane:
1. Zovala zapakhomo
Zida zodzipangitsa nokha zimafuna madzi abwino komanso kulumikizana katundu popewa ming'alu. HPMC imayenda bwino ndikumaliza kwa zinthuzo kudzera mu zotsatira zake zopitilira muyeso ndikuchepetsa kupezeka kwaming'alu.
2. Utoto wakunja
Utoto wakunja pamafunika zomatira bwino komanso kukana kukana. Kapangidwe ka kama filimuyo ndi kuwongolera kwamadzi kwa HPMC kumathandizira kutengera ndi kusinthana, kenako kukulitsa kukana kutsutsana ndi kuwonongeka kwa zogwirizana.
3. Zojambula
Zipangizo zokonzedwa konkrate zimafunikira nyonga yayikulu ndikulimbana mwachangu pomwe mukukhala youma pang'ono. HPMC imapereka mwayi wabwino wowongolera madzi komanso ubongo wowongolera, kulola kukonza zinthu kuti akhalebe owuma nthawi yolimbana ndikuchepetsa chiopsezo cha kuwonongeka pambuyo pokonza.
Kusamala chifukwa chogwiritsa ntchito HPMC
Ngakhale HPMC imathandizanso kuchepetsa kusokonekera kwa zinthu za simenti, mfundo zotsatirazi zikufunikabe kuti zidziwike pogwiritsidwa ntchito:
Kuwongolera Mlingo: Mlingo wa HPMC uyenera kukhala molingana ndi njira zomwe zingachitike. Zochulukirapo kapena zochepa kwambiri zimakhudza ntchito yakuthupi. Nthawi zambiri, mlingo uli pakati pa 0,1% - 0,5%.
Kusakaniza jovifarmation: HPMC imafunikira kusakanizidwa bwino ndi zinthu zina kuti zitsimikizire kuti zikugwira ntchito moluma konse.
Zomangamanga: Malo omanga (monga kutentha, chinyezi) chimakhudzanso zotsatira za HPMC, ndipo ziyenera kusinthidwa mogwirizana malinga ndi momwe ziliri.
Monga chowonjezera chazowonjezera zowonjezera, hpmc limagwira gawo lofunikira pochepetsa zinthu za mmenga kudzera mu Chitetezo cha simenti kudzera mu kusungidwa ndi madzi, ndikukula, kuwongolera mafilimu. Zimachepetsa madzi, amasintha mosagwirizana, amateteza mawonekedwe, ndikuwongolera njira ya hydration, potero kuchepetsa chiopsezo chosweka. Chifukwa chake, pogwiritsa ntchito zinthu za simenti, kugwiritsa ntchito bwino HPMC sikungakuthandizeni kuchita zinthu zakuthupi, komanso kukulitsa moyo wake ndikuchepetsa ndalama zothandizira kukonza.
Post Nthawi: Jun-26-2024