Kugwiritsa ntchito HPMC ndi HEMC mu Zomangamanga

HPMC ndi HEMC ndi ma polima awiri ofunika omwe amagwiritsidwa ntchito kwambiri pomanga. Amagwira ntchito yofunika kwambiri pakuwongolera magwiridwe antchito ndi luso la zida zomangira. M'nkhaniyi, tifotokoza za katundu ndi ntchito za HPMC ndi HEMC muzomangamanga.

HPMC, yomwe imadziwikanso kuti hydroxypropyl methylcellulose, ndi etha ya cellulose yochokera ku zamkati zamatabwa ndi ulusi wa thonje. Ndi ufa wopanda fungo, wosakoma, wopanda poizoni womwe umasungunuka m'madzi. HPMC ali kwambiri madzi posungira, thickening ndi emulsifying katundu, zomwe zimapangitsa kukhala chowonjezera otchuka mu zomangira.

Chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri ndi HPMC ndi zomatira za simenti. HPMC akhoza kusintha mphamvu chomangira ndi workability wa zomatira, ndipo akhoza kuletsa matailosi kutsetsereka kapena kugwa pa unsembe. Kuphatikiza apo, HPMC imatha kuchepetsa kuyamwa kwamadzi kwa matailosi, omwe ndi ofunikira pakukhazikika komanso kukhala ndi moyo wautali wa kukhazikitsa matailosi.

HPMC imagwiritsidwanso ntchito kwambiri muzinthu zodzipangira simenti. Zodzipangira zokha zimagwiritsidwa ntchito kuyika pansi konkire yosagwirizana, ndipo HPMC imatha kupititsa patsogolo kuyenda ndi kusanja kwapawiri. HPMC imalepheretsanso chigawo chodzipangira chokha kuti chisapange ming'alu ndi kuchepa, zomwe ndizofunikira kuti pakhale kukhulupirika kwa dongosolo la pansi.

Ntchito inanso ya HPMC ndi ma renders opangidwa ndi simenti ndi pulasitala. HPMC akhoza kusintha zomatira ndi workability pulasitala kapena stuko, komanso kumapangitsanso madzi ntchito. Izi ndi zofunika kuteteza envelopu yomanga ndi kuteteza kuwonongeka kwa chinyezi.

HEMC, yomwe imadziwikanso kuti hydroxyethyl methylcellulose, ndi ether ina ya cellulose yomwe imagwiritsidwa ntchito kwambiri pomanga. HEMC ndi yofanana ndi HPMC ponena za ntchito ndi ntchito, koma ili ndi ubwino wina wapadera womwe umapangitsa kuti ikhale yoyenera pazinthu zina.

Chimodzi mwazabwino zazikulu za HEMC ndi kukhuthala kwake kwakukulu. Izi zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito muzovala zazitali ndi utoto kuti ziwongolere kuyenda komanso kusanja. HEMC imagwiritsidwanso ntchito kwambiri mu ma caulks ndi sealants, omwe amatha kusintha kukana kwamadzi ndi kumamatira kwa zinthu.

HEMC imagwiritsidwanso ntchito kwambiri pazida zomangira zopangidwa ndi gypsum monga zophatikiza ndi stucco. HEMC imathandizira kugwira ntchito ndi kumamatira kwamagulu ophatikizana komanso imalepheretsa kuchepa ndi kusweka. Kuphatikiza apo, HEMC imatha kupititsa patsogolo kukana kwamadzi komanso kukana kwa mildew kwa plasters, zomwe ndizofunikira pakuwongolera mpweya wamkati wanyumba.

Pomaliza, HPMC ndi HEMC ndi ma polima awiri ofunikira omwe ali ndi ntchito zambiri pazomangamanga. Amagwira ntchito yofunika kwambiri pakuwongolera magwiridwe antchito ndi luso lazomangamanga ndikuthandizira kupanga nyumba zolimba, zogwira mtima komanso zokhazikika. Pamene zidazi zikupitilira kupangidwa ndikuyengedwa, titha kuyembekezera njira zomanga zatsopano komanso zapamwamba m'tsogolomu.