Cellulose ether (Hydroxypropyl Methylcellulose, HPMC mwachidule) ndi mankhwala ofunikira omwe amagwiritsidwa ntchito kwambiri omwe amagwiritsidwa ntchito kwambiri muzomangira, makamaka mumatope a khoma.
1. Kunenepa kwambiri
Ntchito yayikulu ya HPMC mu matope a putty ndikukhuthala. Ikhoza kuonjezera kukhuthala kwa matope ndikuwongolera magwiridwe antchito amatope. Kugwira ntchito bwino kumatanthawuza kuti matope ndi osavuta kufalikira ndi kukwapula pomanga, potero kumapangitsa kuti ntchito yomanga ikhale yabwino komanso yabwino. Kukhuthala kungathenso kulepheretsa matope kuti asagwere pamakoma oyima, kuwonetsetsa kuti zinthu zikugwiritsidwa ntchito komanso momwe zimapangidwira panthawi yomanga.
2. Mphamvu yosungira madzi
Kusunga madzi ndi gawo lina lofunikira la HPMC mu putty mortar. Kusunga madzi kumatanthawuza kukhoza kwa zinthu kusunga chinyezi panthawi yomanga. HPMC imatha kusintha kwambiri kasungidwe ka madzi mumatope ndikuchepetsa kutayika kwa madzi, potero kuwonetsetsa kuti simenti ndi zida zina za simenti zili ndi madzi okwanira kuti azitha kuchiritsa. Izi ndizofunikira kwambiri kuti tipewe mavuto monga ming'alu ndi maenje omwe amayamba chifukwa cha kuyanika mwachangu. Kuonjezera apo, kusunga madzi bwino kungathenso kuwonjezera nthawi yotsegula matope, kupatsa ogwira ntchito yomanga nthawi yambiri yogwira ntchito.
3. Kupititsa patsogolo ntchito yomanga
HPMC ikhoza kupititsa patsogolo ntchito yomanga ya putty mortar, yomwe ikuwonetsedwa m'mbali zotsatirazi:
Kutsetsereka: HPMC imapangitsa kuti mafuta aziyenda bwino, kupangitsa zida zomangira kukhala zosalala panthawi yogwira ntchito, kuchepetsa kukana kwa zomangamanga ndikuwongolera ntchito yomanga.
Kumamatira: Limbikitsani mgwirizano pakati pa matope ndi maziko kuti matope asagwe.
Anti-sag: Limbikitsani kukhazikika kwa matope pamakoma oyima ndikuletsa matope kuti asagwere kapena kutsetsereka chifukwa cha mphamvu yokoka.
4. Sinthani kukana kwa ming'alu
Chifukwa cha kusungira madzi kwa HPMC, matope amatha kusunga chinyezi chokwanira panthawi yochiritsa, kuchititsa hydration reaction mofanana, ndi kuchepetsa kupsinjika maganizo chifukwa cha shrinkage youma, motero kuchepetsa mwayi wa ming'alu. Kuphatikiza apo, HPMC imatha kuonjezera zotanuka modulus matope, kusintha kusinthasintha kwake, ndi kupititsa patsogolo kukana ming'alu.
5. Sinthani kukana kuvala
HPMC imathanso kukonza kukana kwa matope a putty. Filimu yopangidwa mumatope imakhala yolimba komanso yomatira bwino, zomwe zimapangitsa kuti matope ochiritsidwa azikhala olimba komanso osamva bwino. Izi ndizofunikira kwambiri pakukhazikika kwa nthawi yayitali komanso kukongola kwa khoma.
6. Sinthani kukana chisanu
M'madera ozizira, kukana chisanu kwa putty mortar ndikofunikira kwambiri. HPMC akhoza kusintha chisanu kukana matope. Powonjezera kachulukidwe wamkati ndi kulimba kwa matope, zitha kuchepetsa kuwonongeka kwa kapangidwe kazinthu zomwe zimachitika chifukwa cha kuzizira kozizira, potero kumakulitsa moyo wautumiki wokongoletsa khoma.
7. Limbikitsani kubalalitsidwa kofanana
Pa kusanganikirana ndondomeko matope, HPMC kumathandiza mu ngakhale kupezeka kwa zosakaniza zina. Kubalalika kwake kwabwino kumatsimikizira kugawidwa kofanana kwa zigawo zosiyanasiyana za matope panthawi yosakaniza, potero kumapangitsa kuti ntchito zonse zitheke komanso kumanga matope.
8. Limbikitsani kusweka ndi kufota
HPMC imatha kupititsa patsogolo kukana kwa mng'alu ndi kukana kwa matope a putty. Kusungirako bwino kwa madzi ndi kufalikira kwa yunifolomu kumathandiza kuti matope azitha kupirira kupanikizika kofanana panthawi yochiritsa, kuchepetsa kupsinjika maganizo komwe kumachitika chifukwa cha kuyanika kosagwirizana ndi kuchiritsa, motero kuchepetsa chiopsezo cha ming'alu.
Ntchito ya cellulose ether HPMC mu matope a khoma ndi yamitundu yambiri, kuphatikizapo kukhuthala, kusunga madzi, kupititsa patsogolo ntchito yomanga, kupititsa patsogolo kukana kwa ming'alu ndi abrasion, kupititsa patsogolo kuzizira kwachisanu, ndi kulimbikitsa kubalalitsidwa kwa yunifolomu. Ntchitozi limodzi zimapititsa patsogolo ntchito yomanga komanso moyo wautumiki wa putty mortar, womwe ndi wofunikira kwambiri pakuwonetsetsa kuti nyumbayo imakongoletsa komanso kukhazikika kwanyumbayo.
Nthawi yotumiza: Jul-31-2024