Zotsatira za HPMC pa Kukhazikika kwa gypsum matope

Monga momwe zinthu zogwiritsidwira ntchito kwambiri pamakampani omanga, matope a gypsum amakondedwa chifukwa cha kusokonezeka kwake kwamphamvu kwambiri, kuteteza kwachilengedwe, kuteteza chilengedwe ndi zinthu zina. Komabe, matope a gypsum nthawi zambiri amakumana ndi mavuto okwanira panthawi yogwiritsa ntchito, monga kusokonekera ndi kusambira, zomwe sizimangokhudza zochititsa chidwi zake, komanso zimakhudzanso moyo wa polojekiti. Pofuna kusintha kulimba kwa matope a gypsum, ofufuza ambiri ayesera kukonza momwe amagwirira ntchito pakusintha zinthuzo. Pakati pawo, hydroxypropyl methylcellulose (hpmc), ngati etherch wamba, wagwiritsidwa ntchito kwambiri m'matoto a gypsum kuti athandize kupanga matope ndi kukhazikika kwa matope.

1. Makhalidwe oyambira a HPMC
HPMC imachokera ku cellulose, yomwe ili ndi madzi abwino kususuka, kukula ndi zomatira ndi zomata kudzera mu kusintha kwamankhwala. Kupanga kwake molecular kuli ndi ma hydroxypyl ndi magulu a methyl, kuloza kuti apange yankho lokhazikika m'madzi. HPMC imagwiritsidwa ntchito pomanga zida zomangira, makamaka kuwonjezera HPMC kwa gyppumu matope, potulutsa matope, etc. imatha kusintha kwambiri magwiridwe awa.

2. Mphamvu ya HPMC pakupanga matope a gypsum
Kugwiritsa ntchito matope a gypsum ndi chimodzi mwazinthu zofunika kuzikhamu. Kuchita bwino kumatha kuchepetsa kusiyana pakati pa njira yomanga, kukonza bwino ntchito, ndikuonetsetsa kuti mapangidwe ake osanjikiza, mwakutero amalimbikitsa kulimba kwake. Monga wokulirapo komanso wololera wa madzi, hpmc amatenga gawo lofunikira mu matope a gypsim:

Kukula Kwakukulu: HPMC imatha kusintha matope a gypsum, kupanga matope oyenera ndikupewa matope owonda kwambiri kapena owuma kwambiri.

Kusungidwa kwamadzi: HPMC ili ndi chisungiko chabwino chamadzi, chomwe chimatha kuchedwetsa madzi mu matope a gypsum, kuwonjezera nthawi yotseguka, ndikupangitsa kuti zikhale zosavuta kugwiritsa ntchito pomanga. Izi zimathandizira kuchepetsa mavuto obwera chifukwa cha madzi othamanga kwambiri panthawi yomanga, potengera kukula kwake ndikukhazikika kwa matope.

3. Zotsatira za HPMC pa Kukhazikika kwa gypsum matope
Kukhazikika ndi chimodzi mwazomwe zimawonetsa matope a gypsum, zomwe zimakhudzana mwachindunji ndi moyo wake wantchito m'malo enieni. Kukhazikika kwa matope a gypsum kumakhudzidwa makamaka ndi zinthu zambiri monga chinyezi, kusintha kwa kutentha ndi chinyezi, ndi mphamvu zakunja. Kuphatikiza kwa hpmc kumathandizira kulimba kwa matope a gypsum munjira zotsatirazi:

3.1 Kulimbana Kwambiri
Mu matope a gypsum, ming'alu ndi imodzi mwazinthu zofunika zomwe zimakhudza kulimba. Kusintha kwa madzi mwachangu mu matope kapena malo onyowa onyowa kumapangitsa ming'alu yamaliro ndi mkati mwa matope. Kusunga kwamadzi kwa HPMC kumatha kuchepetsa malire a madzi ndikupewa kuwuma, motero kuchepetsa kupezeka kwa ming'alu. Nthawi yomweyo, zotsatira za kukula kwa HPMC zitha kukulitsanso chotsatsa cha matope, kukonza kukhazikika kokwanira kwa matope, ndikuchepetsa kuchepa kwa ming'alu.

3.2 Sinthani Kutsutsa
Matope a gypsum nthawi zambiri amadziwika kuti ndi otetezeka panthawi yoyenera. Ngati mayamwidwe ake ndi olimba kwambiri, chinyezi mkati mwa matopewo chimawonjezeka, chifukwa chotupa, kusenda ndi zochitika zina. Kuphatikiza kwa HPMC kumatha kusintha kukana kwa matope ndikuchepetsa kukokoloka kwa kapangidwe ka matope ndi madzi. Kusungidwa kwamadzi kowonjezera kumathandizira matope kuti akhale okhazikika osakhalitsa ndikupewa kuwonongeka kwa magwiridwe antchito chifukwa cha kugwedezeka kwa chinyezi.

3.3 Kuthetsa Kulimbana Kwanu
Matope a gypsum nthawi zambiri amagwiritsidwa ntchito m'makoma akunja kapena madera ena omwe amakhudzidwa kwambiri ndi kusintha kwanyengo, komwe kumafuna matope kuti ikhale ndi kukana kwina ndikuphwanya. M'madera ozizira, mobwerezabwereza zozizira komanso zopukusa zimatha kuyambitsa matope. HPMC imatha kusintha kapangidwe ka matope ndikuwonjezera kachulukidwe kake, motero zimalimbikitsa kukana kwake kwaulere. Mwa kuchepetsa kudzikundikira kwa manyowa, hpmc kumachepetsa kuwonongeka komwe kumachitika chifukwa cha chinyezi chikukula nthawi ya kuzizira.

3.4 Sinthani magwiridwe antchito okalamba
Popita nthawi, mphamvu ndi zolimba za matope gypsum zidzachepa pang'onopang'ono. Kuphatikiza kwa HPMC kumachepetsa ukalamba posintha microstruction ya matope. Mamolekyu a HPMC amatha kupanga filimu yoteteza kuti muchepetse kuwonongeka kwa matope kuchokera kumadera akunja (monga kusintha kwa mapangidwe a ultraviolet, etc.), potero ndikulimbikitsa luso lake lotsutsa.

4.
Ngakhale HPMC imachita mbali yofunika kwambiri pokonza matope a gypsum, kugwiritsa ntchito kwakenso kumafunikiranso modekha. Zowonjezera zowonjezera za hpmc zingapangitse matope kuti akhale owoneka bwino kwambiri, osakhudzidwa ndi zomangamanga, ndipo mwinanso zovuta panthawi yayitali. Chifukwa chake, mu mapulogalamu othandiza, nthawi zambiri pamafunika kukonza kugwiritsa ntchito HPMC malinga ndi matope ndi zofunikira zomanga. Nthawi zambiri, ndibwino kuwongolera kugwiritsa ntchito HPMC pakati pa 0,2% ndi 1%.

Monga zowonjezera zowonjezera, HPMC ili ndi njira yabwino kwambiri pakukhazikika kwa matope a gypsum. Sizingathandize kusintha matope omanga matope, kukulitsa nthawi yotsegulira ndikusintha mtundu wa zomangamanga, kukana matope ndi kukana kwa matope a gypsum. Pogwiritsa ntchito njira zothandizira kuchuluka kwa HPMC yowonjezeredwa, matope athunthu a matope a gypsum amatha kukhala moyenera komanso zomangira zolimba komanso zokhazikika zitha kuperekedwa kwa makampani omanga.