Kodi kufunika kwa efa wa cellulose n'kofunika bwanji pa matope?

Kodi zotsatira zosiyana za cellulose zosiyanasiyana pa plaster ya Paris ndi ziti?

Carboxymethyl cellulose ndi methyl cellulose zonse zingagwiritsidwe ntchito ngati zosungira madzi pa pulasitala, koma mphamvu yosungira madzi ya carboxymethyl cellulose ndi yotsika kwambiri kuposa ya methyl cellulose, ndipo carboxymethyl cellulose ili ndi mchere wa sodium, kotero si yoyenera pulasitala wa paris. Ili ndi mphamvu yochedwetsa ndipo imachepetsa mphamvu ya pulasitala wa paris. Methyl cellulose ndi njira yabwino kwambiri yosakaniza zinthu zomangira gypsum zomwe zimaphatikizapo kusunga madzi, kukhuthala, kulimbitsa, ndi kukhuthala, kupatula kuti mitundu ina imakhala ndi mphamvu yochedwetsa pamene mlingo wake ndi waukulu kuposa carboxymethyl cellulose. Pachifukwa ichi, zinthu zambiri zomangira gypsum zimagwiritsa ntchito njira yopangira zinthu.carboxymethyl cellulosendimethyl cellulose, zomwe sizimangopereka makhalidwe awo okha (monga mphamvu yochedwetsa ya carboxymethyl cellulose, mphamvu yolimbitsa ya methyl cellulose), komanso zimapereka zabwino zawo zofanana (monga mphamvu yosungira madzi ndi kukhuthala kwawo). Mwanjira imeneyi, mphamvu yosungira madzi ya zinthu zomangira gypsum komanso mphamvu yonse ya zinthu zomangira gypsum zitha kukonzedwa, pomwe kukwera mtengo kumasungidwa pamalo otsika kwambiri.

Kodi kukhuthala kwa etha ya methyl cellulose ndikofunikira bwanji pa matope a gypsum?

Kukhuthala ndi chizindikiro chofunikira cha magwiridwe antchito a ether a methyl cellulose.

Kawirikawiri, kukhuthala kwa gypsum mortar kumakhala kokwera, ndipo mphamvu yosungira madzi ya gypsum mortar imakhala yabwino. Komabe, kukhuthala kwa methyl cellulose ether kumakhala kokwera, ndipo kuchepa kwa kusungunuka kwake kumakhala ndi zotsatira zoyipa pa mphamvu ndi magwiridwe antchito a matope. Kukhuthala kwa matope kumakhala kokwera, ndipo kukhuthala kwa matope kumakhala koonekera bwino, koma sikufanana mwachindunji. Kukhuthala kwa matope kumakhala kokwera, ndipo kukhuthala kwa matope kumakhala kolimba kwambiri. Pakumanga, kumaonekera ngati kumamatira ku scraper ndi kumamatira kwambiri ku substrate. Koma sizothandiza kuwonjezera mphamvu ya matope onyowa okha. Kuphatikiza apo, pakupanga, mphamvu yoletsa kutsika kwa matope onyowa si yoonekeratu. M'malo mwake, ma ether ena apakatikati ndi otsika koma osinthidwa a methyl cellulose ali ndi magwiridwe antchito abwino kwambiri pakukweza mphamvu ya matope onyowa.

Kodi kusalala kwa etha ya cellulose n'kofunika bwanji pa matope?

Kusalala ndi chizindikiro chofunikira cha ntchito ya methyl cellulose ether. MC yomwe imagwiritsidwa ntchito pa matope ouma amafunika kukhala ufa wokhala ndi madzi ochepa, ndipo kusalala kwake kumafunanso 20% mpaka 60% ya kukula kwa tinthu kuti ikhale yochepera 63m. Kusalala kumeneku kumakhudza kusungunuka kwa methyl cellulose ether. MC yolimba nthawi zambiri imakhala yopyapyala, yomwe imakhala yosavuta kufalikira ndikusungunuka m'madzi popanda kusonkhana, koma kuchuluka kwa kusungunuka kumakhala kochedwa kwambiri, kotero sikoyenera kugwiritsidwa ntchito mu matope ouma. Zinthu zina zapakhomo zimakhala zosalala, sizosavuta kufalikira ndikusungunuka m'madzi, komanso zosavuta kusonkhana. Mu matope ouma, MC imafalikira pakati pa zinthu zomangira simenti monga aggregate, fine filler ndi simenti, ndipo ufa wokwanira wokha ndi womwe ungapewe kusonkhana kwa methyl cellulose ether mukasakaniza ndi madzi. MC ikawonjezedwa ndi madzi kuti isungunuke ma agglomerate, zimakhala zovuta kwambiri kufalitsa ndikusungunuka.MCSikuti zimangowononga ndalama zokha, komanso zimachepetsa mphamvu ya matope ouma. Mukagwiritsa ntchito matope ouma otere pamalo akuluakulu, liwiro lotha kuuma la matope oumawo lidzachepa kwambiri, ndipo ming'alu idzawonekera chifukwa cha nthawi zosiyanasiyana zotha kuuma. Pa matope opopera ndi makina opangidwa, kufunikira kwa kusalala kumakhala kwakukulu chifukwa cha nthawi yochepa yosakaniza.

Kusalala kwa MC kumakhudzanso kusunga madzi. Kawirikawiri, pa ma ether a methyl cellulose omwe ali ndi kukhuthala kofanana koma kusalala kosiyana, pansi pa kuchuluka komweko kowonjezera, kusalala kocheperako kumakhala bwino pakusunga madzi.