Mtondo wodziyimira pawokha ungadalire kulemera kwake kuti upange maziko athyathyathya, osalala komanso olimba pa nthaka yopangira kapena yolumikizira zipangizo zina, ndipo nthawi yomweyo ukhoza kugwira ntchito yomanga yaikulu komanso yothandiza. Chifukwa chake, kusinthasintha kwakukulu ndi gawo lofunika kwambiri pa mtondo wodziyimira pawokha. Kuphatikiza apo, uyenera kukhala ndi mphamvu yosungira madzi ndi yolumikizira, osalekanitsa madzi, komanso ukhale ndi mawonekedwe oteteza kutentha komanso kutentha kochepa.
Kawirikawiri, matope odziyimira pawokha amafunika kusinthasintha bwino, koma kusinthasintha kwa phala la simenti yeniyeni nthawi zambiri kumakhala 10-12cm yokha; cellulose ether ndi chowonjezera chachikulu cha matope osakanikirana kale, ngakhale kuti kuchuluka kwake kuli kochepa kwambiri, kumatha kusintha kwambiri magwiridwe antchito a Mortar, kumatha kusintha kusinthasintha, magwiridwe antchito, magwiridwe antchito komanso magwiridwe antchito a matope osungira madzi.
1: Kuthamanga kwa matope
Cellulose ether imakhudza kwambiri kusunga madzi, kusinthasintha, ndi magwiridwe antchito a matope odziyimira pawokha. Makamaka ngati matope odziyimira pawokha, kusinthasintha ndi chimodzi mwa zizindikiro zazikulu zowunikira magwiridwe antchito a matope odziyimira pawokha. Poganizira za kutsimikizira kapangidwe kabwino ka matope, kusinthasintha kwa matope kumatha kusinthidwa posintha kuchuluka kwa ether ya cellulose. Komabe, ngati mlingo uli wokwera kwambiri, kusinthasintha kwa matope kudzachepetsedwa, kotero mlingo wa ether ya cellulose uyenera kulamulidwa mkati mwa malire oyenera.
2: Kusunga madzi m'matope
Kusunga madzi kwa matope ndi chizindikiro chofunikira poyesa kukhazikika kwa zigawo zamkati za matope atsopano osakanikirana a simenti. Kuti tichite bwino momwe zinthu za gel zimagwirira ntchito, kuchuluka koyenera kwa ether ya cellulose kumatha kusunga chinyezi mumatope kwa nthawi yayitali. Kawirikawiri, kuchuluka kwa madzi omwe amasungidwa mumatope kumawonjezeka ndi kuchuluka kwa ether ya cellulose. Mphamvu yosunga madzi ya ether ya cellulose imatha kuletsa substrate kuti isayamwitse madzi ambiri mwachangu, ndikulepheretsa kutuluka kwa madzi, kuti zitsimikizire kuti malo osungira madzi amapereka madzi okwanira kuti simenti iume. Kuphatikiza apo, kukhuthala kwa ether ya cellulose kumakhudzanso kwambiri kusunga madzi kwa matope. Kukhuthala kwakukulu, kukhuthala kwa madzi kumakhala bwino. Kawirikawiri, ether ya cellulose yokhala ndi kukhuthala kwa 400mpa.s imagwiritsidwa ntchito kwambiri mu matope odziyimira pawokha, zomwe zingathandize kukonza magwiridwe antchito a matope ndikuwonjezera kukhuthala kwa matope.
3: Nthawi yokhazikitsa matope
Cellulose ether imakhala ndi mphamvu yochedwetsa zinthu pa matope. Pamene kuchuluka kwa zinthu mu cellulose ether kukuwonjezeka, nthawi yokhazikika ya matope imatalikira. Mphamvu yochedwetsa zinthu ya cellulose ether pa simenti imadalira kwambiri kuchuluka kwa gulu la alkyl, ndipo sizikugwirizana kwenikweni ndi kulemera kwake kwa mamolekyu. Mlingo wocheperako wa alkyl substitution, kuchuluka kwa hydroxyl kumakhala kwakukulu, ndipo mphamvu yochedwetsa zinthu imawonekera kwambiri. Ndipo kuchuluka kwa zinthu mu cellulose ether, kuchedwetsa zinthu kwa filimu ya kuphatikizana kumaonekera bwino kwambiri, kotero mphamvu yochedwetsa zinthu imaonekeranso bwino.
4: Mphamvu yokakamiza ya mortar ndi mphamvu yopindika
Kawirikawiri, mphamvu ndi chimodzi mwa zizindikiro zofunika kwambiri zowunikira momwe zinthu zopangidwa ndi simenti zimakhalira zophikira pa chisakanizocho. Pamene kuchuluka kwa ether ya cellulose kukuwonjezeka, mphamvu yokakamiza ndi mphamvu yosinthasintha ya matope zimachepa.
5: Mphamvu yolumikizirana ndi matope
Cellulose ether imakhudza kwambiri magwiridwe antchito a matope. Cellulose ether imapanga filimu ya polymer yokhala ndi mphamvu yotseka pakati pa tinthu ta simenti tomwe timasungunuka mu madzi, zomwe zimapangitsa kuti madzi ambiri mu filimu ya polymer atuluke kunja kwa tinthu ta simenti, zomwe zimathandiza kuti simenti isungunuke bwino, motero zimawonjezera mphamvu ya phala pambuyo pouma. Nthawi yomweyo, kuchuluka koyenera kwa cellulose ether kumawonjezera pulasitiki ndi kusinthasintha kwa matope, kumachepetsa kuuma kwa malo osinthira pakati pa matope ndi mawonekedwe a substrate, ndikuchepetsa kuthekera kotsetsereka pakati pa ma interfaces. Pamlingo wina, mphamvu ya matope ndi substrate imakulitsidwa. Kuphatikiza apo, chifukwa cha kukhalapo kwa cellulose ether mu phala la simenti, malo apadera osinthira mawonekedwe ndi mawonekedwe amapangidwa pakati pa tinthu ta matope ndi chinthu chosinthira. Malo olumikizira awa amapangitsa malo osinthira mawonekedwe kukhala osinthasintha komanso osalimba, kotero kuti matopewo akhale ndi mphamvu yolimba yolumikizira.
Nthawi yotumizira: Feb-03-2023