Hpmc (hydroxypropyl methylcellulose)ndi njira yolumikizira nyumba yomwe imagwiritsidwa ntchito ndipo imagwiritsidwa ntchito kwambiri mu matope a gypsum. Ntchito zake zazikulu ndikusintha matope omanga matope, kusintha kusungidwa kwamadzi, kukulitsa zomatira ndikusintha zomwe zimapangitsa kuti matope azovala. Matope a gypsum ndi chinthu chomanga ndi gypsum monga chinthu chachikuluchi, chomwe nthawi zambiri chimagwiritsidwa ntchito m'khola ndi zopangira zokongoletsera za khoma.
1. Mphamvu ya HPMC Mlingo pa madzi osungira matope a gypsum
Kusunga kwamadzi ndi chimodzi mwazofunikira za matope a gypsum, zomwe zimakhudzana mwachindunji ndi ntchito yomangayi ndi mphamvu yamatope. HPMC, ngati polecular yoopsa, imakhala ndi madzi abwino. Mamolekyu ake amakhala ndi magulu ambiri a hydroxyl ndi ether. Magulu a Hydrophilic awa amatha kupanga ma hydrogen zomangira za mamolekyu amadzi kuti muchepetse kukhazikika kwa madzi. Chifukwa chake, kuwonjezera kwa kuchuluka kwa hpmc yoyenera kumatha kusintha madzi osungira matope ndi kuletsa matope ndi kuyika matope mwachangu komanso kung'ambika pamwamba pomanga.
Kafukufuku wasonyeza kuti pochulukitsa mlingo wa HPMC, madzi osungira matope amawonjezeka. Komabe, pomwe Mlingo wakwera kwambiri, phokoso la matope limatha kukhala lalikulu kwambiri, likukhudza ntchito yomanga. Chifukwa chake, kuchuluka koyenera kwa HPMC kumayenera kusinthidwa malinga ndi momwe mungagwiritsire ntchito.
2. Mphamvu ya hpmc mlingo paukadaulo wamphamvu wa gypsum matope
Mphamvu yogwiritsira ntchito ndi njira inanso yofunikira matope a gypsum, yomwe imakhudza mwachindunji kutsatira pakati pa matope ndi maziko. HPMC, ngati polecular yoopsa, imatha kukonza coutheon ndikugwirira ntchito matope. Kuchuluka kwa hpmc kumatha kukonza zomangira za matope, kuti ipatse zomatira mwamphamvu ndi khomalo ndi gawo lapansi pomanga.
Kafukufuku woyesera wasonyeza kuti mlingo wa HPMC umakhudzanso kulimbikira kwa matope. Mlingo wa HPMC uli mkati mwa mitundu ina (nthawi zambiri 0,2% -0.6%), mphamvu yogwiririra imawonetsa njira yotsekera. Izi zili choncho chifukwa HPMC imatha kukulitsa matope a matope, kuti ithe kukhala bwino yokwanira panthawi yomanga ndikuchepetsa kukhetsa ndi kuwonongeka. Komabe, ngati mlingowo ndi wokwera kwambiri, atha kukhala ndi madzi ochulukirapo, akukhudza chotsatira chake mpaka gawo lamphamvu, potero kuchepetsa mphamvu yaubwenzi.
3. Mphamvu ya hpmc mlingo wa madzi ndi zomangamanga kwa gypsum matope
Mafuta ndi chizindikiritso chofunikira kwambiri pantchito yomanga matope a gypsum, makamaka m'zigawo za khoma. Kuphatikiza kwa HPMC kumatha kusintha madzima matope, kumapangitsa kuti ipange ndi kugwira ntchito. Makhalidwe a HPMC Molecular zida zimathandizira kuwonjezera matope a matope mwakukula, potero kukonza matoma ndi kapangidwe ka matope.
Mlingo wa HPMC ndi wotsika, madziwo ndi osauka, omwe angayambitse zovuta zomangamanga ngakhale kuphwanya. Kuchuluka koyenera kwa hpmc mlingo (nthawi zambiri pakati pa 0,2% -0.6%) kumatha kusintha madzi ofunda, kusintha magetsi ake ndikusinthasintha, ndikuwongolera mwamphamvu. Komabe, ngati mlingowo ndi wokwera kwambiri, madzimadzi amawoneka owoneka bwino kwambiri, njira yomanga idzakhala yovuta, ndipo zitha kuyambitsa kutaya zinthu.
4. Mphamvu ya HPMC Mlingo wouma shrinkage matope a gypsum
Kuyanika shrinkage ndi katundu wina wofunika wa matope a gypsum. Kukwiya kwambiri kumayambitsa ming'alu pakhoma. Kuphatikiza kwa hpmc kumatha kuchepetsa bwino matope a matope. Kafukufukuyu adazindikira kuti kuchuluka kwa HPMC yoyenera kuchepetsa madzi okwanira, poyerekeza ndi vuto louma la matope a gypsum. Kuphatikiza apo, kapangidwe ka HPMC kumatha kupanga malo okhazikika pa intaneti, kukonzanso kukana kwa matope.
Komabe, ngati mlingo wa HPMC ndi wokwera kwambiri, umatha kuyambitsa matope kuti akhazikitse nthawi yayitali, ndikukhudza luso la zokambirana. Nthawi yomweyo, kuwoneka bwino kwambiri kumatha kuyambitsa kufalikira kwa madzi pakumanga, kumakhudza kusintha kwa shrinkage.
5. Zotsatira za Mlingo wa HPMC pa kukana kwa gypsum matope
Kukana kusokonekera ndi chizindikiro chofunikira powunikira mtundu wa matope a gypsum. HPMC imatha kukonza zovuta zake mwakuwongolera mphamvu yomuphwanya, yomata komanso mphamvu ya matope. Powonjezera kuchuluka kwa hpmc, kukana kwa matope a gypsum kumatha kukhala bwino kuti apewe ming'alu yoyambitsidwa ndi mphamvu yakunja kapena kusintha kwa kutentha.
Mlingo woyenera wa HPMC nthawi zambiri pakati pa 0,3% ndi 0,5%, omwe amatha kukulitsa mawonekedwe a matope ndikuchepetsa ming'alu yoyambitsidwa ndi kutentha kutentha ndi shrinkage. Komabe, ngati mlingowo ndi wokwera kwambiri, mafayilo ochulukirapo angapangitse matope kuti achiritse pang'onopang'ono, mwakutero akukhudza kukana kwake konse.
6. Kukonzekera ndi kugwiritsa ntchito kwa HPMC Mlingo
Kuchokera pakuwunikira kwa zisonyezo zomwe zili pamwambapa, mlingo waHpmcimakhudza kwambiri matope a gypsum. Komabe, kuchuluka kokwanira kwa Mlingo ndi njira yokwanira, ndipo mlingo umalimbikitsidwa kuti akhale 0,2% mpaka 0.6%. Malo omanga osiyanasiyana ndi zofunika kugwiritsa ntchito zingafunike kusintha zina ndi kuchuluka kwazochita bwino. Pamapulogalamu othandiza, kuphatikiza pa mlingo wa HPMC, zinthu zina zofunika kuzilingalira, monga kuchuluka kwa matope, zinthu za gawo lapansi gawo lapansi, komanso malo omanga.
Mlingo wa HPMC umakhala ndi vuto lalikulu pakuchita kwa matope a gypsum. Kuchuluka kwa hpmc koyenera kumatha kusintha zofunikira za matope monga kusungidwa kwamadzi, kulumikizana ndi mphamvu, komanso kukana. Kuwongolera kwa mlingo kuyenera kuganizira mokwanira zofunikira zakumanga ndi mphamvu yomaliza ya matope. Mlingo wololera HPMC singangosintha matope omanga matope, komanso kusintha matope akutali. Chifukwa chake, pakupanga zenizeni ndi zomanga, Mlingo wa HPMC uyenera kukhazikitsidwa molingana ndi zofunikira kuti mukwaniritse zabwino koposa.
Post Nthawi: Disembala 16-2024