Njira Yopanga Mafilimu a RDP mu Cement Mortar

Njira yopangira filimu ya Redispersible Polymer Powder (RDP) mumatope a simenti imaphatikizapo magawo angapo omwe amathandizira kuti pakhale filimu yogwirizana komanso yolimba ya polima. Nawa mwachidule za njira yopangira mafilimu:

1. Kubalalitsidwa: Poyambirira, tinthu tating'onoting'ono ta RDP timamwazikana mofanana mu gawo lamadzi la kusakaniza kwamatope a simenti. Kubalalitsidwa kumeneku kumachitika panthawi yosakanikirana, pomwe tinthu tating'onoting'ono ta RDP timalowetsedwa mu matope osakaniza pamodzi ndi zosakaniza zina zowuma.
2. Kuthira madzi: Akakumana ndi madzi, tinthu tating'onoting'ono ta hydrophobic polima mu RDP timayamba kutupa ndi kuyamwa chinyezi. Njirayi, yomwe imadziwika kuti hydration, imapangitsa kuti tinthu ta polima tifewe komanso kuti tizitha kupendekera.
3. Kupanga Mafilimu: Pamene kusakaniza kwamatope kumagwiritsidwa ntchito ndikuyamba kuchiritsa, tinthu tating'ono ta RDP ta hydrated timalumikizana ndikuphatikizana kupanga filimu ya polima yosalekeza. Kanemayu amamatira pamwamba pa matrix amatope ndikumangirira tinthu tating'onoting'ono.
4. Coalescence: Panthawi yochiritsa, tinthu tating'ono ta RDP timakumana ndikulumikizana, komwe timalumikizana ndikupanga ma intermolecular bond. Njira yolumikizirana iyi imathandizira kupanga maukonde ogwirizana komanso opitilira apolima mkati mwa matrix amatope.
5. Crosslinking: Pamene matope a simenti akuchira ndikuuma, kuphatikizika kwa mankhwala kumatha kuchitika pakati pa maunyolo a polima mufilimu ya RDP. Njira yolumikizirana iyi imalimbitsanso filimuyo ndikuwonjezera kumamatira kwake ku gawo lapansi ndi zigawo zina zamatope.
6. Kuyanika ndi Kuphatikizika: Tondo la simenti limayanika ndikuphatikizana pamene madzi amasanduka nthunzi kuchokera kusakaniza ndipo zomangira simenti zimachiritsa. Izi zimathandiza kulimbitsa filimu ya RDP ndikuyiphatikiza mumatope olimba.
7. Kupanga Mafilimu Omaliza: Akamaliza kuchiritsa, filimu ya RDP imakula bwino ndikukhala gawo lofunika kwambiri la matope a simenti. Firimuyi imapereka mgwirizano wowonjezera, kusinthasintha, ndi kulimba kwa matope, kupititsa patsogolo ntchito yake yonse komanso kukana kusweka, kusinthika, ndi zovuta zina zamakina.

Njira yopangira filimu ya RDP mumatope a simenti imaphatikizapo magawo a hydration, coalescence, crosslinking, ndi consolidation, zomwe pamodzi zimathandizira kuti pakhale filimu yogwirizana komanso yolimba ya polima mkati mwa matrix amatope. Kanemayu amathandizira kumamatira, kusinthasintha, komanso kulimba kwa matope, ndikuwongolera magwiridwe ake pantchito zosiyanasiyana zomanga.