Udindo wa ufa wa polima wosungunukanso mu ufa wa putty

Udindo wazosungunukansopolimaufaMu ufa wa putty: uli ndi mphamvu zolimba komanso mphamvu zamakanika, umateteza madzi bwino, umalowa mosavuta, komanso umateteza bwino kwambiri ku alkali komanso umakhala wolimba, ndipo umatha kukonza kusunga madzi ndikuwonjezera nthawi yotseguka kuti ukhale wolimba.

1. Zotsatira za matope osakaniza kumene

1) Konzani zomangamanga.

2) Kusunga madzi kowonjezera kuti madzi a simenti asamachuluke.

3) Kuonjezera kuthekera kogwira ntchito.

4) Pewani kusweka msanga.

2. Zotsatira za matope olimba

1) Chepetsani mphamvu yotanuka ya matope ndikuwonjezera kuyanjana ndi gawo loyambira.

2) Wonjezerani kusinthasintha ndi kukana kusweka.

3) Kulimbitsa kukana kwa ufa kugwa.

4) Kusakonda madzi kapena kuchepetsa kuyamwa kwa madzi.

5) Wonjezerani kumatirira ku gawo loyambira.

Ufa wa latex womwe umasungunukanso umapanga emulsion ya polima ikakhudzana ndi madzi. Panthawi yosakaniza ndi kuumitsa, emulsion imaphwanso madzi. Ufa wa latex umagwira ntchito mu ufa wa putty, ndipo njira yopangira dongosolo la composite ya hydration ya simenti ndi kupanga filimu ya ufa wa latex imatsirizidwa m'magawo anayi:

①Pamene ufa wa latex wosungunukanso ukasakanizidwa bwino ndi madzi mu ufa wa putty, umafalikira kukhala tinthu tating'onoting'ono ta polima;

②Simenti ya gel imapangidwa pang'onopang'ono kudzera mu madzi oyamba a simenti, gawo lamadzimadzi limadzazidwa ndi Ca(OH)2 yopangidwa panthawi ya madzi, ndipo tinthu ta polima topangidwa ndi ufa wa latex timayikidwa pamwamba pa simenti ya gel/tinthu ta simenti tosaphwanyika;

③ Pamene simenti ikuwonjezeredwa madzi, madzi omwe ali m'mabowo a capillary amachepa, ndipo tinthu ta polima timatsekeredwa pang'onopang'ono m'mabowo a capillary, ndikupanga wosanjikiza wolimba pamwamba pa simenti gel/simenti yosasungunuka tinthu ta simenti ndi chodzaza;

④ Pogwiritsa ntchito njira yothira madzi, kuyamwa kwa maziko a nthaka ndi kusungunuka kwa madzi pamwamba, chinyezi chimachepa kwambiri, ndipo zigawo zomangira zomwe zimapangidwa zimasonkhanitsidwa kukhala filimu yopyapyala, ndipo zinthu zothira madzi zimagwirizanitsidwa kuti zipange kapangidwe ka netiweki yonse. Dongosolo lophatikizana lomwe limapangidwa ndi simenti yothira madzi ndi kapangidwe ka filimu ya latex powder limathandizira kukana kwa ming'alu ya putty.

Poganizira momwe zinthu zilili, mphamvu ya putty yomwe imagwiritsidwa ntchito ngati gawo losinthira pakati pa chotenthetsera chakunja ndi chophimba cha khoma lakunja siyenera kukhala yayikulu kuposa ya matope opaka pulasitala, apo ayi zimakhala zosavuta kupanga ming'alu. Mu dongosolo lonse la chotenthetsera, kusinthasintha kwa putty kuyenera kukhala kwakukulu kuposa kwa substrate. Mwanjira imeneyi, putty imatha kusintha bwino kusintha kwa substrate ndikusunga kusintha kwake pogwiritsa ntchito zinthu zakunja, kuchepetsa kupsinjika, ndikuchepetsa kuthekera kwa ming'alu ndi kuchotsedwa kwa chophimbacho.