Zotsatira za mlingo wa RDP pa mphamvu ya putty bonding ndi kukana madzi

Putty ndi chinthu choyambira chomwe chimagwiritsidwa ntchito kwambiri pokongoletsa nyumba, ndipo ubwino wake umakhudza mwachindunji moyo wa ntchito ndi momwe utoto wa khoma umakhudzira. Mphamvu yomangira ndi kukana madzi ndi zizindikiro zofunika kwambiri poyesa momwe putty imagwirira ntchito.Ufa wa latex wosungunukanso, monga chinthu chosinthidwa ndi polima yachilengedwe, chimagwira ntchito yofunika kwambiri pakukweza magwiridwe antchito a putty.

1. Njira yogwirira ntchito ufa wa latex wosungunukanso

Ufa wa latex wosungunukanso ndi ufa wopangidwa ndi kupopera kwa emulsion ya polima. Ungathe kupangidwanso kuti upange njira yokhazikika yogawanitsira polima mutakhudza madzi, zomwe zimathandiza kulimbitsa mphamvu yolumikizana ndi kusinthasintha kwa putty. Ntchito zake zazikulu ndi izi:

Kukweza mphamvu yolumikizirana: Ufa wa latex wosinthika umapanga filimu ya polima panthawi yowumitsa putty, ndipo umagwirizana ndi zinthu zopanda chilengedwe za gelling kuti uwonjezere mphamvu yolumikizirana pakati pa nkhope.

Kuonjezera kukana madzi: Ufa wa latex umapanga netiweki yosakonda madzi mu kapangidwe ka putty, kuchepetsa kulowa kwa madzi ndikuwonjezera kukana madzi.

Kuwongolera kusinthasintha: Kungachepetse kupunduka kwa putty, kupititsa patsogolo luso losintha mawonekedwe, komanso kuchepetsa chiopsezo cha ming'alu.

2. Kafukufuku woyesera

Zipangizo zoyesera

Zida zoyambira: ufa wa putty wopangidwa ndi simenti

Ufa wa latex wotha kusungunukanso: ufa wa ethylene-vinyl acetate (EVA) copolymer latex

Zowonjezera zina: chokhuthala, chosungira madzi, chodzaza, ndi zina zotero.

Njira yoyesera

Ma putty okhala ndi miyeso yosiyanasiyana ya ufa wa latex wotha kusungunukanso (0%, 2%, 5%, 8%, 10%) adakonzedwa motsatana, ndipo mphamvu yawo yolumikizana ndi kukana madzi zidayesedwa. Mphamvu yolumikizana idatsimikiziridwa ndi mayeso otulutsa, ndipo mayeso okana madzi adayesedwa ndi kuchuluka kwa mphamvu yosungira pambuyo pomizidwa m'madzi kwa maola 24.

3. Zotsatira ndi zokambirana

Zotsatira za ufa wa latex wosungunukanso pa mphamvu yolumikizana

Zotsatira za mayeso zikusonyeza kuti ndi kuwonjezeka kwa mlingo wa RDP, mphamvu ya putty yolumikizana ikuwonetsa chizolowezi choyamba kukwera kenako kukhazikika.

Pamene mlingo wa RDP ukukwera kuchoka pa 0% mpaka 5%, mphamvu ya putty imawonjezeka kwambiri, chifukwa filimu ya polima yopangidwa ndi RDP imawonjezera mphamvu ya bonding pakati pa maziko ndi putty.

Pitirizani kuonjezera RDP kufika pa 8%, kukula kwa mphamvu yolumikizirana kumakhala kosalala, komanso kumachepa pang'ono pa 10%, zomwe zitha kukhala chifukwa chakuti RDP yochulukirapo idzakhudza kapangidwe kolimba ka putty ndikuchepetsa mphamvu yolumikizirana.

Zotsatira za ufa wa latex wosungunukanso pa kukana madzi

Zotsatira za mayeso okana madzi zikusonyeza kuti kuchuluka kwa RDP kumakhudza kwambiri kukana madzi kwa putty.

Mphamvu yolumikizirana ya putty yopanda RDP inachepa kwambiri atanyowa m'madzi, zomwe zikusonyeza kusagwira bwino ntchito kwa madzi.

Kuonjezera kuchuluka koyenera kwa RDP (5%-8%) kumapangitsa kuti putty ikhale yolimba kwambiri, imateteza madzi, komanso imasunga mphamvu pambuyo pa maola 24 atamizidwa.

Komabe, pamene kuchuluka kwa RDP kupitirira 8%, kulimba kwa kukana madzi kumachepa, zomwe zitha kukhala chifukwa chakuti zinthu zambiri zachilengedwe zimachepetsa mphamvu ya anti-hydrolysis ya putty.

Zotsatira zotsatirazi zitha kupezeka kuchokera ku kafukufuku woyesera:

Kuchuluka koyenera kwaufa wa latex wosungunukanso(5%-8%) ikhoza kukulitsa kwambiri mphamvu yolumikizirana komanso kukana madzi kwa putty.

Kugwiritsa ntchito kwambiri RDP (>8%) kungakhudze kapangidwe kolimba ka putty, zomwe zimapangitsa kuti mphamvu yolumikizana komanso kukana madzi zichepe kapena kuchepa.

Mlingo woyenera uyenera kukonzedwa bwino malinga ndi momwe amagwiritsidwira ntchito putty kuti pakhale mgwirizano wabwino pakati pa magwiridwe antchito ndi mtengo wake.