Chimodzi mwa kusiyana kwakukulu pakati pa matope owuma ndi matope achikhalidwe ndikuti matope owuma amasinthidwa ndi zochepa zowonjezera mankhwala.Kuonjezera mtundu umodzi wowonjezera ku matope owuma kumatchedwa primary modification, kuwonjezera zowonjezera ziwiri kapena zingapo ndikusintha kwachiwiri.Ubwino wa matope owuma umadalira kusankha kolondola kwa zigawo ndi kugwirizanitsa ndi kugwirizanitsa zigawo zosiyanasiyana.Zowonjezera za mankhwala ndizokwera mtengo ndipo zimakhudza kwambiri zinthu zamatope owuma.Choncho, posankha zowonjezera, kuchuluka kwa zowonjezera ziyenera kukhala poyamba.Zotsatirazi ndizofotokozera mwachidule za kusankha kwa mankhwala owonjezera a cellulose ether.
Ma cellulose ether, omwe amadziwikanso kuti rheological modifier, mtundu wa admixture womwe umagwiritsidwa ntchito posintha mawonekedwe a matope atsopano osakanikirana, pafupifupi amagwiritsidwa ntchito mumatope amtundu uliwonse.Zinthu zotsatirazi ziyenera kuganiziridwa posankha mitundu yosiyanasiyana komanso kuchuluka kwake:
(1) Kusunga madzi pa kutentha kosiyana;
(2) kukhuthala, kukhuthala;
(3) Ubale pakati pa kusasinthasintha ndi kutentha, ndi chikoka pa kusasinthasintha pamaso pa electrolyte;
(4) mawonekedwe ndi digiri ya etherification;
(5) kusintha kwa thixotropy ndi udindo luso la matope (omwe ndi zofunika matope TACHIMATA pa ofukula pamwamba);
(6) Kuwonongeka kwa chiwerengero, chikhalidwe ndi kusungunuka kwathunthu.
Kuwonjezera pa kuwonjezera mapadi a cellulose mumatope owuma (monga methyl cellulose ether), akhoza kuwonjezera vinyl polyvinyl acid ester, ndiko kuti, kusinthidwa kwachiwiri.The inorganic binder mu matope (simenti, gypsum) imatha kutsimikizira kulimba kwamphamvu, koma imakhala ndi mphamvu zochepa pamphamvu yolimba komanso mphamvu yopindika.Vinyl polyvinyl ester imamanga filimu yotanuka mu dzenje la miyala ya simenti, imapanga matope amatha kunyamula katundu wambiri, kusintha kukana kuvala.Zatsimikiziridwa ndi chizolowezi kuti powonjezera milingo yosiyanasiyana ya methyl cellulose etha ndi vinyl polyvinyl ester mu matope owuma, matope owonda opaka, pulasitala, matope opaka utoto, matope opaka konkire osungunula ndi matope odzipangira okha. akhoza kukonzekera.Kusakaniza ziwirizi sikungowonjezera ubwino wa matope, komanso kumapangitsanso bwino ntchito yomanga.
M'malo mogwiritsa ntchito, kuti muwonjezere magwiridwe antchito, ndikofunikira kugwiritsa ntchito ma admixtures angapo.Machesi abwino pakati pa gawo lowonjezera, mlingo woyenera wa mlingo, chiwerengero, akhoza kuchokera kuzinthu zosiyanasiyana kukhala ndi zotsatira zina kuti apititse patsogolo ntchito ya matope, koma kusintha kwake kwa matope pamene kugwiritsidwa ntchito kokha kumakhala kochepa, nthawi zina kumakhala ndi zotsatira zoipa, monga monga single doped CHIKWANGWANI, kuonjezera adhesiveness matope, kuchepetsa mlingo wa stratification pa nthawi yomweyo, Komabe, kumwa madzi matope kwambiri kuchuluka ndi kusungidwa mu slurry, zomwe zimabweretsa kuchepa kwa compressive mphamvu.Pamene mpweya wolowetsa mpweya umawonjezeredwa, digiri ya matope ya delamination ndi kumwa madzi kumatha kuchepetsedwa kwambiri, koma mphamvu yopondereza yamatope idzachepa chifukwa cha thovu zambiri.Kupititsa patsogolo zomangamanga matope ntchito pazipita, pamene kupewa kuvulaza katundu wina, mphamvu ya zomangamanga matope kusasinthasintha, digiri ya stratification ndi kukwaniritsa zofunika uinjiniya ndi malamulo pa specifications luso, pa nthawi yomweyo, musagwiritse ntchito laimu putty, kupulumutsa simenti. , kuteteza chilengedwe, etc., kuchokera kuchepetsa madzi, mamasukidwe akayendedwe, thickening madzi ndi mpweya-entraining plasticizing kaonedwe, M'pofunika kuchita zinthu zambiri kukhala ndi ntchito pawiri admixtures.
Nthawi yotumiza: Apr-29-2022