HPMC akhoza kugawidwa mu kalasi yomanga, kalasi chakudya ndi kalasi mankhwala malinga ndi cholinga.Pakalipano, zinthu zambiri zapakhomo ndizomangamanga, ndipo muzomangamanga, kuchuluka kwa ufa wa putty ndi waukulu kwambiri.Sakanizani ufa wa HPMC ndi zinthu zina zambiri za ufa, sakanizani bwino ndi chosakanizira, kenaka yikani madzi kuti musungunuke, ndiye HPMC ikhoza kusungunuka panthawiyi popanda agglomeration, chifukwa ngodya iliyonse yaying'ono, ufa wochepa wa HPMC umakumana. madzi.zidzasungunuka nthawi yomweyo.Opanga matope ndi matope nthawi zambiri amagwiritsa ntchito njirayi.Hydroxypropyl methylcellulose (HPMC) amagwiritsidwa ntchito ngati thickener ndi chosungira madzi mu putty powder mortar.
Kutentha kwa gel osakaniza a HPMC kumagwirizana ndi zomwe zili mu methoxy, kutsika kwa methoxy ↓, kumapangitsa kutentha kwa gel ↑.Madzi ozizira amtundu wa HPMC amathiridwa pamwamba ndi glyoxal, ndipo amabalalika m'madzi ozizira, koma samasungunuka kwenikweni.Imasungunuka kokha pamene mamasukidwe akayendedwe akuwonjezeka.Mitundu yotentha yosungunula sichimathandizidwa ndi glyoxal.Ngati kuchuluka kwa glyoxal kuli kwakukulu, kubalalitsidwa kudzakhala kofulumira, koma kukhuthala kumawonjezeka pang'onopang'ono, ndipo ngati ndalamazo ndizochepa, zosiyana zidzakhala zoona.HPMC akhoza kugawidwa mu mtundu nthawi yomweyo ndi kutentha-kusungunuka mtundu.Instant mtundu mankhwala amabalalitsa mwamsanga m'madzi ozizira ndi kutha m'madzi.Panthawi imeneyi, madzi alibe mamasukidwe akayendedwe chifukwa HPMC yekha omwazika m'madzi popanda kuvunda kwenikweni.Pafupifupi mphindi 2, kukhuthala kwamadzimadzi kumawonjezeka pang'onopang'ono, ndikupanga mawonekedwe a viscous colloid.Zogulitsa zotentha zotentha, zikakumana ndi madzi ozizira, zimatha kumwazikana m'madzi otentha ndikuzimiririka m'madzi otentha.Kutentha kumatsika mpaka kutentha kwina, kukhuthala kumawonekera pang'onopang'ono mpaka kumapanga mawonekedwe a viscous colloid.Mtundu wosungunuka wotentha ukhoza kugwiritsidwa ntchito mu putty ufa ndi matope.Mu guluu wamadzimadzi ndi utoto, padzakhala zochitika zamagulu ndipo sizingagwiritsidwe ntchito.Mtundu wapomwepo uli ndi mapulogalamu ambiri.Itha kugwiritsidwa ntchito mu putty ufa ndi matope, komanso guluu wamadzimadzi ndi utoto, popanda zotsutsana.
HPMC yopangidwa ndi njira yosungunulira imagwiritsa ntchito toluene ndi isopropanol ngati zosungunulira.Ngati kusamba sikuli bwino, padzakhala fungo lotsalira.Kugwiritsa ntchito ufa wa putty: zofunikira ndizochepa, kukhuthala ndi 100,000, ndikokwanira, chofunikira ndikusunga madzi bwino.Kugwiritsa ntchito matope: zofunikira zapamwamba, kukhuthala kwakukulu, 150,000 ndizabwinoko.Kugwiritsa ntchito guluu: zinthu pompopompo zokhala ndi kukhuthala kwakukulu zimafunikira.Kuchuluka kwa HPMC komwe kumagwiritsidwa ntchito pazochitika zenizeni kumasiyanasiyana malinga ndi nyengo, kutentha, khalidwe la calcium la phulusa la m'deralo, ufa wa putty powder ndi "khalidwe lofunika kwa makasitomala".Kukhuthala kwa hydroxypropyl methylcellulose (HPMC) -putty powder kawirikawiri ndi 100,000, ndipo kufunikira kwa matope ndipamwamba, ndipo kumafunika 150,000 kuti ikhale yosavuta kugwiritsa ntchito.Komanso, ntchito yaikulu ya HPMC ndi kusunga madzi, kenako thickening.Mu ufa wa putty, malinga ngati kusungirako madzi kuli bwino ndipo kukhuthala kuli kochepa (70,000-80,000), ndizothekanso.Zoonadi, kukwezeka kwa viscosity kumapangitsa kuti madzi azikhala bwino.Pamene mamasukidwe akayendedwe kuposa 100,000, mamasukidwe akayendedwe adzakhudza kasungidwe madzi.Osati kwambiri;omwe ali ndi kuchuluka kwa hydroxypropyl nthawi zambiri amakhala ndi madzi osungira bwino.Yokhala ndi kukhuthala kwakukulu imakhala ndi madzi osungira bwino, ndipo yomwe ili ndi kukhuthala kwakukulu imagwiritsidwa ntchito bwino mumatope a simenti.
Mu putty powder, HPMC imagwira ntchito zitatu zokulitsa, kusunga madzi ndi kumanga.Osatenga nawo mbali pazokambirana zilizonse.Chifukwa cha thovulo chikhoza kukhala kuti madzi ochulukirapo amaikidwa, kapena mwina pansi wosanjikiza siuma, ndipo wosanjikiza wina amaphwanyidwa pamwamba, ndipo ndi kosavuta kutulutsa thovu.Kuchulukitsa kwa HPMC mu putty powder: mapadi amatha kukulitsidwa kuti ayimitse, sungani yankho yunifolomu komanso losasinthika, ndikukana kugwa.Mphamvu yosungira madzi ya HPMC mu ufa wa putty: pangani ufa wa putty kuti uume pang'onopang'ono, ndikuthandizira phulusa la calcium kuti lichitepo pansi pa madzi.Zomangamanga za HPMC mu putty powder: cellulose imakhala ndi mafuta odzola, omwe angapangitse ufa wa putty kukhala ndi zomangamanga zabwino.HPMC satenga nawo gawo pazosintha zilizonse zamakina, koma imagwira ntchito yothandiza.
Kutayika kwa ufa wa putty powder makamaka kumagwirizana ndi khalidwe la phulusa la calcium, ndipo silikugwirizana kwenikweni ndi HPMC.Kashiamu wochepa wa calcium yotuwira ndi chiŵerengero chosayenera cha CaO ndi Ca(OH)2 mu kashiamu wotuwa zidzachititsa kuti ufa uwonongeke.Ngati ili ndi chochita ndi HPMC, ndiye ngati kusungirako madzi kwa HPMC kuli koipa, kumapangitsanso kuti ufa ugwe.Kuonjezera madzi ku ufa wa putty ndikuwuyika pakhoma ndi mankhwala, chifukwa zinthu zatsopano zimapangidwira, ndipo ufa wa putty pakhoma umachotsedwa pakhoma.Kutsika, kupangidwa kukhala ufa, ndikugwiritsanso ntchito, sikungagwire ntchito, chifukwa zinthu zatsopano (calcium carbonate) zapangidwa.Zigawo zazikulu za ufa wa phulusa la calcium ndi: chisakanizo cha Ca(OH)2, CaO ndi CaCO3 pang'ono, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium ili m'madzi ndi mpweya Pansi pa zochita za CO2, calcium carbonate imapangidwa, pamene HPMC imangosunga madzi, kuthandizira bwino phulusa la phulusa la calcium, ndipo silitenga nawo mbali pazochita zilizonse zokha.
Nthawi yotumiza: Mar-18-2023