Kodi njira zosankhira cellulose yowonjezera ya matope osakanikirana ndi dry-mixed ndi ziti?

Kusiyana kwakukulu pakati pa matope osakaniza ndi matope achikhalidwe ndikuti matope osakaniza ndi matope amasinthidwa ndi mankhwala ochepa. Kuwonjezera chowonjezera chimodzi ku matope osakaniza ndi ufa wouma kumatchedwa kusintha kwakukulu, kuwonjezera zowonjezera ziwiri kapena zingapo kumatchedwa kusintha kwachiwiri. Ubwino wa matope osakaniza ndi ufa wouma umadalira kusankha kolondola kwa zigawo ndi kulumikizana ndi kufananiza kwa zigawo zosiyanasiyana. Chifukwa zowonjezera za mankhwala zimakhala zodula kwambiri, ndipo zimakhudza kwambiri magwiridwe antchito a matope osakaniza ndi ufa wouma. Chifukwa chake, posankha zowonjezera, kuchuluka kwa zowonjezera kuyenera kuperekedwa patsogolo. Izi ndi njira yodziwira mwachidule njira yosankhira mankhwala owonjezera a cellulose ether.

Cellulose ether imatchedwanso rheology modifier, kusakaniza komwe kumagwiritsidwa ntchito kusintha mawonekedwe a rheological a matope osakanikirana kumene, ndipo amagwiritsidwa ntchito pafupifupi mumtundu uliwonse wa matope. Makhalidwe otsatirawa ayenera kuganiziridwa posankha mtundu wake ndi mlingo wake:

(1) Kusunga madzi kutentha kosiyanasiyana;

(2) Kukhuthala, kukhuthala;

(3) Ubale pakati pa kusinthasintha ndi kutentha, komanso momwe zimakhudzira kusinthasintha kwa electrolyte;

(4) Kapangidwe ndi kuchuluka kwa etherification;

(5) Kukonza bwino matope a thixotropy ndi luso loyika zinthu pamalo ake (izi ndizofunikira kuti matope ajambulidwe pamalo oyima);

(6) Liwiro la kusungunuka, mikhalidwe ndi kutha kwa kusungunuka.

Kuwonjezera pa kuwonjezera ether ya cellulose (monga methyl cellulose ether) ku matope ouma, polyvinyl acid vinyl ester ikhozanso kuwonjezeredwa, kutanthauza kusintha kwachiwiri. Zomangira zopanda chilengedwe (simenti, gypsum) mu matope zimatha kutsimikizira mphamvu yayikulu yopondereza, koma sizikhudza mphamvu yokoka ndi mphamvu yosinthasintha. Polyvinyl acetate imamanga filimu yotanuka mkati mwa pores a mwala wa simenti, zomwe zimathandiza kuti matopewo athe kupirira zovuta zambiri komanso kusintha kukana kuwonongeka. Kafukufuku wasonyeza kuti kuwonjezera kuchuluka kosiyanasiyana kwa methyl cellulose ether ndi polyvinyl acid vinyl ester ku matope ouma kumatha kukonza matope obowola mbale, matope opaka pulasitala, matope okongoletsa openta, ndi matope omangira mabuloko a konkriti opumira mpweya Ndi matope odziyimira pawokha othira pansi, ndi zina zotero. Kusakaniza ziwirizi sikungowonjezera ubwino wa matopewo, komanso kumawonjezera kwambiri magwiridwe antchito omanga.

Pogwira ntchito, kuti muwongolere magwiridwe antchito onse, ndikofunikira kugwiritsa ntchito zowonjezera zingapo pamodzi. Pali chiŵerengero chabwino kwambiri chofananira pakati pa zowonjezera. Bola ngati mulingo ndi chiŵerengero cha mlingo zili zoyenera, zimatha kusintha magwiridwe antchito a matope kuchokera mbali zosiyanasiyana. Komabe, zikagwiritsidwa ntchito zokha, zotsatira zake pa matope zimakhala zochepa, ndipo nthawi zina ngakhale zotsatira zoyipa, monga kuwonjezera cellulose yokha, pomwe kuwonjezera mgwirizano wa matope ndikuchepetsa kuchuluka kwa delamination, kumawonjezera kwambiri kugwiritsa ntchito madzi a matope ndikusunga mkati mwa slurry, zomwe zimapangitsa kuchepa kwakukulu kwa mphamvu yokakamiza; Mukasakaniza ndi chothandizira cholowetsa mpweya, ngakhale kuchuluka kwa stratification ya matope kumatha kuchepetsedwa kwambiri, ndipo kugwiritsa ntchito madzi kumachepetsedwanso kwambiri, koma mphamvu yokakamiza ya matope nthawi zambiri imachepa chifukwa cha thovu la mpweya wambiri. Kuti muwongolere magwiridwe antchito a matope a matope kwambiri, komanso nthawi yomweyo kupewa kuvulaza zinthu zina za matope, kusinthasintha, kuyika ndi mphamvu ya matope a matope kuyenera kukwaniritsa zofunikira za polojekitiyi ndi zofunikira zaukadaulo. Nthawi yomweyo, palibe laimu yomwe imagwiritsidwa ntchito, kusunga ndalama. Pa simenti, kuteteza chilengedwe, ndi zina zotero, ndikofunikira kuchitapo kanthu mokwanira, kupanga ndikugwiritsa ntchito zinthu zosakanikirana kuchokera ku malingaliro a kuchepetsa madzi, kuwonjezeka kwa kukhuthala, kusunga ndi kukhuthala kwa madzi, komanso kupangitsa kuti mpweya ulowe m'malo mwake.