Hpmc (hydroxypropyl methylcellulose) ndi malo owonjezera osungunuka owonjezera madzi owonjezera madzi, omwe amagwiritsidwa ntchito kwambiri m'makampani omanga, makamaka pazida monga konkriti wodziletsa komanso pulasitala. Chifukwa cha ntchito yake yapadera ndi mankhwala, hpmc imachita mbali yofunika kwambiri yothetsera magwiridwe antchito omanga.
1. Kugwiritsa ntchito HPMC mu konkriti wodziletsa
Konkriti wodziletsa ndi konkriti yomwe imayenda ndipo imakhala yokhayo yokha, yomwe nthawi zambiri imagwiritsidwa ntchito pokonza chithandizo pansi ndikukonza. Poyerekeza ndi konkriti yachikhalidwe, konkriti yokhayokha imakhala ndi mamasukidwe otsika komanso madzi abwino, motero imatha kukwaniritsa malo osakhazikika pomanga. Komabe, simenti yangwiro ndi zida zina zachikhalidwe nthawi zambiri sizingapereke madzi ambiri okwanira komanso kubisalako, kotero kuwonjezera kwa HPMC ndikofunikira kwambiri.
Sinthani madzi abwino: hpmc imakhala ndi madzi abwino owongolera. Itha kupanga dongosolo lokhazikika la colloidal mu simenti zopangidwa ndi simenti, kotero kuti konkriti imadzimadzi itatha kuwonjezera madzi, ndipo sizingapangitse kutsika kwamadzi chifukwa chamadzi ambiri. HPMC imatha kusintha madzi konkire komanso kungoyang'ana konkriti wodziletsa polumikizana ndi madzi, onetsetsani kuti imatha kuphimba bwino malo onse pomanga ndikukwaniritsa zabwino zolimbitsa thupi.
Kupititsa madzi, konkriti kokhazikika kumafunikira kusungidwa kwamadzi koyenera kuteteza chifukwa cha madzi ambiri pomanga. HPMC imatha kusintha bwino madzi okhazikika kwa simete, kuchepetsa kuchuluka kwa madzi, kukulitsa nthawi yomanga, ndikuwonetsetsa konkriti yodzilimbitsa.
Sinthani kusokonekera kwa stack: hpmc imatha kupanga mawonekedwe osinthika mu konkriti, yomwe imatha kufalitsa nkhawa, kuchepetsa ming'alu yoyambitsidwa ndi simenti ya konkriti yokha.
Sinthani zomatira: Pomanga konkriti yodzilimbitsa nokha, kutsatira pakati pa konkriti ndipo maziko ndi chizindikiritso chofunikira chogwiritsira ntchito. HPMC imatha kukonza zomatira pakati pa konkriti wodziletsa komanso pansi, onetsetsani kuti kukhazikika kwa zinthuzo pomanga, komanso kuonetsetsa kupezeka kwa kusenda ndi kukhetsa.
2. Kugwiritsa ntchito HPMC mu pulasitala ya pulasitala ndi malo opangira simenti, gypsum, mchenga ndi zina zowonjezera chokongoletsera cha khoma komanso chitetezo cha khoma. Hpmc, monga zinthu zosinthidwa, zitha kusintha kwambiri magwiridwe antchito. Udindo wake umawonetsedwa makamaka m'mbali zotsatirazi:
Kupititsa patsogolo ntchito: Ntchito yomanga pulasitala imafunikira nthawi yochepa komanso madzi abwino, makamaka akagwiritsidwa ntchito makhoma akuluakulu, othana ndi ofunika kwambiri. HPMC imatha kusintha madzi ndi kubisaladi ya pulasitala, ndikupangitsa yunifolomu yambiri panthawi yomwe imagwiritsidwa ntchito, kuchepetsa zotsatsa komanso zovuta zomanga.
Kukhazikitsa madzi kusungitsa ndi kukhazikitsa nthawi: pulasitala imakonda kuwonongeka kapena kusagwirizana chifukwa cha madzi ofulumira pakugwiritsa ntchito. Kuphatikiza kwa HPMC kumatha kusintha njira yake yosungirako madzi, pongochedwetsa nthawi yake yochiritsa, onetsetsani kuti pulasitala imavota yunifolomu pakugwiritsa ntchito, ndikupewa ming'alu ndi kukhetsa.
Kuwongolera Mphamvu Yogwirizanitsa: Ntchito zomanga pulasitala, mphamvu zomangira ndi chinthu chofunikira chokhudza chotsatsa komanso kukhazikika kwa chitolirocho. HPMC imatha kuwonjezera mphamvu ya pulasitala, onetsetsani kuti pulasitala imalumikizidwa ndi gawo lapansi, ndikuletsa kukhetsa kapena kuwonongeka chifukwa cha mphamvu yakunja kapena kusintha kwa kutentha.
Kuwongolera Kulimbana: Mapati amatha kukhudzidwa ndi chinyezi, kutentha ndi zinthu zina panthawi yolimba, chifukwa cha ming'alu pamwamba. HPMC imatha kuthetsa ming'alu yoyambitsidwa ndi shrinkage ndi kutentha kusintha, kusintha malo okhwima a pulasitala, ndikuwonjezera moyo wa khoma posintha matendawa.
Sinthani madzi kukana ndi kulimba kwa madzi: hpmc sikuti zimangosintha madzi osungira pulasitala, komanso amalimbikitsa madzi ake kupewa ndi kulimba. Makamaka m'malo ena achilengedwe, hpmc amatha kupewa kunyozedwa ku chinyezi, kusintha madzi onyowa a pulasitala, ndikupewa miseche kapena kuwonongeka kwa khoma mukatha chinyezi.
3. Ubwino wa magwiridwe ndi zovuta za HPMC
Kugwiritsa ntchitoHpmc Mu konkriti wodziletsa komanso pulasitala kwambiri ndi zabwino zambiri, makamaka malinga ndi malamulo ake abwino, onjezerani modekha, komanso kugwiritsa ntchito mokakamizidwa. Komabe, mukamagwiritsa ntchito HPMC, ndikofunikiranso kumvetsera mwachidwi muyezo wake woyenera komanso kuphatikizidwa ndi zina zowonjezera. HPMC imatha kupangitsa kuti madzi a konkriti kapena pulasitala akhale olimba kwambiri, omwe angakhudze mphamvu zake zomaliza komanso kukhazikika mwapangidwe. Chifukwa chake, mu ntchito zothandiza, ndikofunikira kuti muchepetse kuchuluka kwa HPMC yomwe imagwiritsidwa ntchito kuonetsetsa kuti makonzedwe omanga.
Monga zinthu zofunika kwambiri za polymer, hpmc zimagwiritsidwa ntchito kwambiri pakudzilimbitsa komanso pulasitala. Imatha kusintha madzi, kusungidwa kwamadzi, kukana madzi ndi kutsatira zida zomangira izi, ndikuwonjezera magwiridwe awo omanga ndi luso lotsiriza. Komabe, mukamagwiritsa ntchito HPMC, mtundu wake ndi mlingo uyenera kusankhidwa molingana ndi zofunikira pakugwiritsa ntchito ndi zofunikira pakupanga kuti zitsimikizire momwe zinthu ziliri. Ndi kufunikira kokulira kwa zinthu zatsopano m'makampani omanga, HPMC ipitilizabe kuchita mbali yolimbikitsa pomanga zida zomangira monga konkriti yodzidalira.
Post Nthawi: Nov-20-2024