HPMC (hydroxypropyl methylcellulose)ndi zinthu wamba zosungunuka m'madzi zosungunuka za polima zomwe zimagwiritsidwa ntchito kwambiri popanga simenti, makamaka popanga matope osakaniza owuma, zomatira matailosi, zokutira pakhoma, gypsum ndi zida zina zomangira.
1. Sinthani magwiridwe antchito ndi magwiridwe antchito
HPMC ali kwambiri thickening zotsatira ndipo akhoza kusintha fluidity ndi mamasukidwe akayendedwe a zinthu zochokera simenti, kuti zikhale zosavuta ntchito pomanga. Pambuyo powonjezera HPMC, kugwira ntchito kwa zinthu monga matope ndi zomatira kumakhala bwino kwambiri, kumapangitsa kuti ogwiritsa ntchito azigwiritsa ntchito bwino, trowel, ndi zina zotero, kuchepetsa kusagwirizana pakati pa ntchito yomanga, ndikuwongolera kwambiri zomangamanga ndi khalidwe.
2. Wonjezerani maola otsegulira ndikuwongolera ntchito yomanga
HPMC ikhoza kuchedwetsa nthawi yoyambira yopangira zinthu zopangidwa ndi simenti, kulola ogwira ntchito yomanga kukhala ndi nthawi yayitali yogwira ntchito pomanga. Nthawi yotsegulira yomangidwa pambuyo pomanga zinthu zopangidwa ndi simenti (ie nthawi yomwe zinthuzo zitha kugwiritsiridwa ntchito zisanawumitsidwe) imakulitsidwa kwambiri. Pazomangamanga zazikulu kapena zomanga zovuta, kukulitsa nthawi yotsegulira kumatha kuchepetsa zovuta zomanga ndi kutayika komwe kumachitika chifukwa cha kulimba kwa zinthu msanga, makamaka m'malo otentha kwambiri.
3. Kupititsa patsogolo kumamatira ndi kukana madzi
HPMC imatha kupititsa patsogolo kumamatira kwa zinthu zopangidwa ndi simenti, kuwalola kuti azitsatira bwino gawo lapansi ndikuwonjezera mphamvu zomangira pakati pa zinthu zosiyanasiyana. Muzogwiritsa ntchito monga zomatira matailosi ndi gypsum, HPMC imatha kuwongolera bwino kumamatira kumtunda wapansi ndikuchepetsa kugwa kwa matailosi, matabwa a gypsum ndi zida zina. Kuphatikiza apo, HPMC ili ndi kukana kwamadzi kwabwino, komwe kumatha kupititsa patsogolo magwiridwe antchito a simenti m'malo achinyezi, kuchepetsa kuchuluka kwa chinyezi pazida za simenti, ndikuwonjezera moyo wautumiki wazinthuzo.
4. Sinthani kukana kwa ng'anjo
Kugwiritsa ntchitoMtengo wa HPMCmu zinthu zopangidwa ndi simenti zimathandizira kuti ming'alu isamagwire bwino ntchito, makamaka pankhani ya kuchepa kwa kuyanika. Tondo la simenti limakonda kung'ambika panthawi ya nthunzi ya madzi. HPMC imatha kusintha kuchuluka kwa madzi amadzimadzi azinthu zopangidwa ndi simenti kuti zichepetse kuchitika kwa ming'alu. Posintha njira ya hydration ya zinthu zopangidwa ndi simenti, HPMC imatha kuchepetsa ming'alu yomwe imayambitsidwa ndi kusiyana kwa kutentha, kusintha kwa chinyezi kapena kupsinjika kwamkati kwa chinthu chopangidwa ndi simenti, potero kumapangitsa kukhazikika kwa chinthucho.
5. Limbikitsani odana ndi thovu ndi bata
HPMC imatha kuwongolera bwino zomwe zili muzinthu zopangidwa ndi simenti ndikuwonjezera zotsutsana ndi thovu. Kupezeka kwa thovu muzinthu zopangidwa ndi simenti kumakhudza mphamvu, kuphatikizika ndi mawonekedwe azinthuzo. Kuphatikizika kwa HPMC kumatha kukhazikika kapangidwe ka slurry ndikuchepetsa kutulutsa kwa thovu, motero kumapangitsa kukhazikika kwazinthu zonse.
6. Sinthani kusalala kwa pamwamba ndi maonekedwe
Pazinthu zambiri zopangira simenti, kusalala kwa pamwamba ndi mawonekedwe ake zimakhudza kwambiri kupikisana kwa msika wa chinthu chomaliza. HPMC imatha kuwongolera kuchuluka kwa zinthu zopangidwa ndi simenti, kupangitsa kuti malo awo azikhala osalala komanso osalala, komanso kuchepetsa zolakwika monga kusenda ndi thovu pakumanga, motero kuwongolera mawonekedwe azinthuzo. Makamaka muzogwiritsa ntchito monga zokutira ndi zomatira matailosi, HPMC imatha kuwonetsetsa kuti pamwamba pake ndi yopanda chilema komanso kukhala ndi zowoneka bwino.
7. Sinthani kusintha ndi kusinthasintha
HPMC ndi zinthu zomwe zingasinthidwe ku zosowa zosiyanasiyana. Posintha kapangidwe kake ka maselo (monga madigiri osiyanasiyana a hydroxypropylation, methylation, etc.), magwiridwe antchito, kusungunuka, kuchedwa kuyika nthawi ndi mawonekedwe ena a HPMC amatha kusinthidwa, potero akupereka makonda amitundu yosiyanasiyana ya zinthu zopangidwa ndi simenti. yankho. Mwachitsanzo, zomatira za matailosi apamwamba kwambiri komanso matope okonza, mitundu yosiyanasiyana ya HPMC ingagwiritsidwe ntchito kukwaniritsa zosowa zosiyanasiyana zomanga.
8. Limbikitsani chitetezo cha chilengedwe ndi kusunga mphamvu
Monga zinthu zachilengedwe za polima, HPMC nthawi zambiri imakhala yopanda poizoni, yopanda vuto ndipo imakwaniritsa zofunikira zoteteza chilengedwe. Kugwiritsa ntchito zinthu zopangidwa ndi simenti za HPMC sikumangopititsa patsogolo ntchito yomanga, komanso kumachepetsa kuwononga chilengedwe. Kuphatikiza apo, kuwonjezera kwa HPMC kumatha kuchepetsa kuchuluka kwa simenti, kupulumutsa mphamvu, ndikuthandizira kupititsa patsogolo ntchito kwanthawi yayitali ya zinthu zopangidwa ndi simenti ndikuchepetsa ndalama zosamalira.
9. Sinthani kukhazikika kwamafuta
HPMC imakhala ndi kukhazikika kwamafuta ndipo imatha kukhalabe yokhazikika pamatenthedwe apamwamba. Muzinthu zina zapadera, monga zopangira simenti m'malo otentha kwambiri, HPMC imatha kupereka kukhazikika kwamafuta, kuonetsetsa kuti zogulitsazo zitha kukhalabe ndi ntchito yomanga yabwino komanso yolimba pansi pa kutentha kwambiri.
10. Limbikitsani madzimadzi ndi kufanana
HPMC imatha kupanga zosakaniza zomwe zimapangidwa ndi simenti kuti zigawidwe mofanana ndikuchepetsa kusiyana kwa magwiridwe antchito chifukwa cha kusagwirizana. Imawongolera kusungunuka kwa slurry ndikupewa mawonekedwe a clumps kapena tinthu tating'onoting'ono, potero kuwonetsetsa kufanana komanso kusasinthika muzosakaniza zonse.
Monga chowonjezera kuzinthu zopangidwa ndi simenti,Mtengo wa HPMCsizingangowonjezera magwiridwe antchito, kumamatira, kukana madzi, kukana kwa ming'alu ndi mtundu wa zinthuzo, komanso kupititsa patsogolo ntchito yomanga ndikukulitsa moyo wautumiki wazinthuzo. Makhalidwe ake abwino kwambiri akukhuthala, kuchedwetsa kulimba, kuwongolera kukana kwa ming'alu, anti-foaming ndi kuwongolera madzimadzi kumapangitsa HPMC kukhala chowonjezera chofunikira kwambiri pazomangira zamakono. Pomwe kufunikira kwa mafakitale opangira zida zogwirira ntchito kwambiri kukuchulukirachulukira, kugwiritsa ntchito kwa HPMC muzinthu zopangira simenti kuchulukirachulukira.
Nthawi yotumiza: Dec-07-2024