Hydroxypropyl Methylcellulose (HPMC) ndi chilengedwe polima pawiri ntchito kwambiri pomanga, mankhwala, chakudya ndi zina. M'makampani a simenti, AnxinCel®HPMC nthawi zambiri amagwiritsidwa ntchito ngati chowonjezera kuti apititse patsogolo ntchito ya simenti, ndikuwonjezera kusinthika, kugwira ntchito komanso kuuma komaliza kwa zosakaniza za simenti.
1. Basic makhalidwe ndi limagwirira ntchito HPMC
HPMC ndi mankhwala omwe amapezeka posintha mapadi kudzera mu ethylation, hydroxypropylation ndi methylation. Mapangidwe ake a maselo amaphatikizapo magulu angapo a hydrophilic ndi hydrophobic, omwe amawathandiza kuti azigwira ntchito zingapo pamakina a simenti. HPMC imagwira ntchito zotsatirazi mu simenti:
Makulidwe zotsatira
HPMC ali amphamvu thickening zotsatira ndipo akhoza kwambiri kusintha mamasukidwe akayendedwe a simenti phala, kupanga osakaniza simenti yunifolomu pa kusakaniza ndi kupewa stratification kapena sedimentation. Izi ndizofunikira kwambiri pakuwongolera kuchuluka kwa madzi ndi kukhazikika kwa phala la simenti, makamaka mu konkriti yogwira ntchito kwambiri kapena zida zina za simenti zomwe zimafunikira, kuwonetsetsa kuti zimadzaza nkhunguyo bwino komanso imakhala yolimba kwambiri.
Konzani kasungidwe ka madzi
HPMC imatha kuwongolera kuchuluka kwa madzi a nthunzi mu phala la simenti ndikuchedwetsa nthawi yoyambira simenti. Makamaka kutentha kwambiri kapena malo owuma, imatha kusunga kunyowa kwa phala la simenti ndikuletsa kuyanika msanga, potero kumapangitsa ntchito yomanga. Kusunga madzi ndi chinthu chofunikira kwambiri pomanga zida za simenti ndipo kumatha kuletsa kupanga ming'alu.
Kupititsa patsogolo adhesion ndi kuonjezera fluidity
Zina zowonjezera mankhwala nthawi zambiri anawonjezera phala simenti, monga ma polima, mchere admixtures, etc., zomwe zingakhudze fluidity wa simenti phala. HPMC akhoza kuonjezera mphamvu yomangira simenti, kupanga slurry zambiri pulasitiki ndi madzimadzi, potero kuwongolera ntchito yomanga. Kuphatikiza apo, HPMC imathanso kukulitsa kumamatira pakati pa simenti ndi zida zina zomangira (monga mchenga ndi miyala) ndikuchepetsa kupezeka kwa tsankho.
Limbikitsani kukana kwa crack
Popeza AnxinCel®HPMC akhoza kusintha madzi posungira simenti ndi kuchedwetsa ndondomeko hydration, angathenso mogwira bwino ming'alu kukana zipangizo simenti. Makamaka kumayambiriro kwa simenti pamene mphamvu ya simenti sifika pamlingo wokwanira, zinthu za simenti zimakhala zosavuta kuphulika. Pogwiritsa ntchito HPMC, kutsika kwa simenti kumatha kuchepetsedwa ndipo kupangika kwa ming'alu chifukwa cha kutaya madzi mwachangu kumatha kuchepetsedwa.
2. Zotsatira za HPMC pakugwiritsa ntchito simenti
Kupititsa patsogolo luso la simenti
Kukhuthala kwa HPMC kumapangitsa phala la simenti kukhala logwira ntchito kwambiri. Pakuti mitundu yosiyanasiyana ya simenti (monga wamba Portland simenti, mwamsanga kuyanika simenti, etc.), HPMC akhoza kukhathamiritsa fluidity wa slurry ndi atsogolere kuthira ndi akamaumba pomanga. Kuphatikiza apo, HPMC imatha kupanga phala la simenti kukhala lokhazikika panthawi yomanga, kuchepetsa kuphatikizika kwa mpweya, ndikuwongolera zomangamanga zonse.
Limbikitsani mphamvu ya simenti
Kuphatikiza kwa HPMC kumatha kupititsa patsogolo mphamvu ya simenti pamlingo wina. Iwo amasintha kagawidwe madzi simenti, amalimbikitsa yunifolomu hydration anachita particles simenti, motero timapitiriza komaliza kuumitsa mphamvu ya simenti. Pochita ntchito, kuwonjezera kuchuluka koyenera kwa HPMC kumatha kulimbikitsa kuyatsa koyambira kwa simenti ndikuwongolera kulimba, kusinthasintha komanso kulimba kwa simenti.
Kupititsa patsogolo kukhazikika
Kuwonjezera kwa HPMC kumathandiza kuti simenti ikhale yolimba. Makamaka pamene simenti imakhudzidwa ndi malo owononga (monga asidi, alkali, saline, etc.), HPMC ikhoza kupititsa patsogolo kukana kwa mankhwala ndi kukana kwa simenti, potero kumawonjezera moyo wautumiki wa nyumba za simenti. Kuphatikiza apo, HPMC imatha kuchepetsa capillary porosity ya zosakaniza za simenti ndikuwonjezera kachulukidwe wa simenti, potero kuchepetsa kuwonongeka kwake m'malo ovuta.
Sinthani kusinthasintha kwachilengedwe
M'nyengo yozizira kwambiri, ntchito ya simenti nthawi zambiri imakhudzidwa ndi kusintha kwa kutentha ndi chinyezi. HPMC imatha kuchedwetsa nthawi yoyika simenti ndikuchepetsa mavuto omwe amayamba chifukwa cha kuyanika mwachangu kapena kuthirira kwambiri. Choncho, ndizoyenera makamaka kumalo omanga ndi kutentha kwakukulu, kutentha kochepa komanso kusintha kwakukulu kwa chinyezi.
3. Kugwiritsa ntchito bwino kwa HPMC
Ngakhale kugwiritsa ntchito HPMC mu simenti kumatha kupititsa patsogolo ntchito yake, kugwiritsa ntchito kwake kuyenera kukhala kosamala, makamaka pakuwonjezera ndalama. Kuwonjezeka kwakukulu kwa HPMC kungayambitse kukhuthala kwa phala la simenti kuti likhale lokwera kwambiri, zomwe zimapangitsa kuti zikhale zovuta kusakaniza kapena kumanga. Nthawi zambiri, kuchuluka kwa HPMC yowonjezeredwa kuyenera kuyendetsedwa pakati pa 0.1% ndi 0.5% ya simenti, ndipo mtengo wake uyenera kusinthidwa malinga ndi mtundu wa simenti, ntchito ndi malo omanga.
Magwero osiyanasiyana, mawonekedwe ndi magawo osinthika aMtengo wa HPMC Zingakhalenso ndi zotsatira zosiyana pa katundu wa simenti. Choncho, posankha HPMC, zinthu monga kulemera kwa maselo, hydroxypropyl ndi digiri ya methylation ziyenera kuganiziridwa mozama kuti tipeze kusinthidwa bwino. Zotsatira.
Monga chosinthira simenti chofunikira, AnxinCel®HPMC imathandizira kwambiri kugwirira ntchito, mphamvu, kulimba komanso kusinthika kwa chilengedwe kwa simenti mwa kukhuthala, kukonza kusungika kwamadzi, kumamatira komanso kukana ming'alu. Kugwiritsiridwa ntchito kwake kwakukulu mu makampani a simenti sikungowonjezera ntchito yonse ya simenti, komanso kumapereka chithandizo champhamvu pa kafukufuku ndi chitukuko cha zinthu zatsopano za simenti monga konkire yogwira ntchito kwambiri komanso zipangizo zomangira zachilengedwe. Pamene ntchito yomanga ikupitilira kukulitsa zofunikira pakugwira ntchito kwazinthu, HPMC ili ndi chiyembekezo chokulirapo pamakampani a simenti ndipo ipitiliza kukhala chowonjezera chofunikira chosinthira simenti.
Nthawi yotumiza: Jan-16-2025