Ufa wa polima wosungunukanso (RDP), monga chowonjezera chachilengedwe mu mortars zamakono zosakaniza zouma, chimagwiritsidwa ntchito kwambiri m'njira zosiyanasiyana monga zomatira za matailosi, ufa wa putty, mortars zotetezera khoma, mortars zodziyimira pawokha, ndi mortars zosalowa madzi chifukwa cha mphamvu zake zabwino zomangira, kusinthasintha, komanso kuthekera kosintha. Kwenikweni, ndi ufa wolimba wopangidwa ndi kupopera ndi kuuma kwa polymer emulsion. Ikakhudzana ndi madzi, imatha kusungunukanso kukhala emulsion yokhazikika, motero imapanga filimu ya polymer yokhazikika panthawi yolimbitsa matope, zomwe zimapangitsa kuti matopewo azigwira ntchito bwino kwambiri.
1. Njira Yofunika Kwambiri ya RDP Pokonza Magwiridwe Abwino a Mortar
1.1. Kulimbitsa Mphamvu ya Chigwirizano
Filimu ya polima yopangidwa ndi RDP pambuyo poyimitsa matope imakhala yolimba kwambiri komanso yolimba, imapanga mlatho wolimba wolumikizana pamwamba pa matope, zomwe zimapangitsa kuti matopewo azilumikizana bwino pakati pa matope ndi zinthu monga konkriti, njerwa, matabwa a EPS, ndi matailosi. Ntchito ya RDP ndi yofunika kwambiri pa matope osayamwa kwambiri kapena osalala.
1.2. Kusinthasintha Kowonjezereka ndi Kukana Ming'alu
Zipangizo zachikhalidwe zopangidwa ndi simenti zimakhala zofooka kwambiri ndipo zimatha kusweka chifukwa cha kusintha kwa kutentha ndi kusintha kwa substrate. Polima mu RDP imafalikira m'mabowo a matope, ndikupanga kapangidwe kosinthasintha ka netiweki, kuchepetsa elastic modulus ya chinthucho, ndikuwonjezera kukana kwake ku kusintha, motero kumawonjezera kwambiri kukana kwa ming'alu ya matope.
1.3. Kugwira Ntchito Bwino
RDP imapangitsa kuti matope akhale ofewa komanso osalala, zomwe zimapangitsa kuti ntchito igwire bwino ntchito komanso kuti azitha kugwiritsidwa ntchito mosavuta. Kusunga madzi bwino komanso nthawi yayitali yotseguka zimathandiza kuti ntchito yomanga ikhale yosalala, kuonjezera magwiridwe antchito komanso kukhazikika kwabwino.
1.4. Kulimbana Kwambiri ndi Madzi ndi Nyengo
Filimu ya polimayi ili ndi kukana kwabwino kwa madzi ndi kukana madzi, imachepetsa kuyamwa kwa madzi a matope ndipo motero imalimbitsa kukana kwa madzi ndi kuzizira. Pakugwiritsa ntchito makoma akunja, RDP imathandizira kukana kwa zophimba ndi matope a matope, ndikusunga kukhazikika kwawo akamakumana ndi nthawi yayitali.
2. Kugwiritsa Ntchito Redispersible Polymer (RDP) mu Machitidwe Osiyanasiyana a Mortar
2.1. Chomatira cha Matailosi
RDP ndi gawo lofunikira kwambiri la guluu wa matailosi, lomwe limathandizira kwambiri kumamatira, kuletsa kutsetsereka, komanso kusinthasintha. Pa matailosi akuluakulu, matailosi osayamwa kwambiri, kapena matailosi okhala ndi ma vitrified, RDP yokhala ndi ma polima ambiri imatsimikizira kuti imagwirizana bwino ndipo imaletsa malo opanda kanthu komanso kusweka.
2.2. Chomangira Khoma Chakunja (EPS/XPS Adhesive, Chomangira Chomalizitsa)
Mu makina otetezera kutentha, RDP imapereka kusinthasintha kofunikira komanso mphamvu yolumikizira, zomwe zimathandiza kuti matope azigwirana mwamphamvu ndi ma board a EPS/XPS. Zimathandizanso kukana ming'alu komanso kukana kukhudza kwa gawo lomaliza, ndikutsimikizira kukhazikika kwa nthawi yayitali kwa makina otetezera kutentha.
2.3. Mtondo Wosalowa Madzi
RDP imapanga filimu yolimba ya polima mkati mwa matope, kuchepetsa kutsekeka kwa mitsempha yamagazi ndikuwonjezera kusalowa madzi. Pogwira ntchito limodzi ndi zinthu zothira madzi za simenti, imawonjezera kusinthasintha ndi kulimba kwa wosanjikiza wosalowa madzi.
2.4. Mtondo Wodziyimira Payokha
Mu machitidwe odziyimira pawokha, RDP imawongolera mphamvu yoyambirira, kusinthasintha, ndi mphamvu zomangira za matope pomwe imachepetsa kusweka, zomwe zimapangitsa kuti pansi pakhale pokhazikika komanso pakhale mphamvu yapamwamba pamwamba.
2.5. Ufa wa Putty
Kuwonjezera RDP ku ufa wa putty kumawonjezera kumamatira, mphamvu zotsutsana ndi choko, komanso kumva kuyera, zomwe zimapangitsa kuti khoma likhale losalala komanso lokonzedwa bwino komanso kuti madzi azikhala olimba komanso osasunthika.
2.6. Kukonza Chomera ndi Wothandizira Wolumikizira
RDP imakulitsa kulimba ndi kukana ming'alu ya zipangizo zokonzera, zomwe zimapangitsa kuti zikhale zokhazikika komanso zodalirika pa ntchito monga kukonza konkire yakale ndi kukonza mawonekedwe ake.
3. Malangizo Ogwiritsira Ntchito Ufa wa Polima Wosasinthika
Sankhani yoyeneraRDPmtundu ndi mlingo kutengera ntchito ya dongosolo la matope;
Kuphatikiza ndi ma ether a cellulose (HPMC/MHEC), ma ether a starch, ndi zina zotero, kungathandize kwambiri kusunga madzi, kugwira ntchito bwino, komanso kukana kutsika;
Sungani pamalo ouma kuti mupewe chinyezi ndi kutsekeka;
Onetsetsani kuti mwafalikira bwino mukasakaniza kuti mugwire bwino ntchito.
Nthawi yotumizira: Disembala-01-2025