Kugwira ntchito kwazinthu komanso magawo akuluakulu ogwiritsira ntchito ufa wa latex

Waukulu ntchito redispersible latex ufa

Mkati ndi kunja kwa khoma putty ufa, matailosi zomatira, matailosi kuloza wothandizira, youma ufa mawonekedwe agent, kunja matenthedwe matope matope kwa makoma akunja, matope odziyimira pawokha, matope okonza, matope okongoletsera, matope osalowa madzi kunja kwa matenthedwe owuma osakaniza matope. Mumtondo, ndikuwongolera brittleness, zotanuka modulus ndi zofooka zina za matope a simenti, ndikupangitsa kuti matope a simenti akhale osinthika bwino komanso olimba omangika, kuti athe kukana ndikuchedwetsa kuphulika kwa matope a simenti. Popeza polima ndi matope kupanga interpenetrating maukonde dongosolo, mosalekeza polima filimu aumbike mu pores, amene kumalimbitsa mgwirizano pakati pa aggregates ndi midadada ena pores mu matope, kotero kusinthidwa matope pambuyo kuumitsa ndi bwino kuposa simenti matope. Pali kusintha kwakukulu.

Mankhwala katundu wa redispersible latex ufa

1. Limbikitsani mphamvu yopindika ndi mphamvu yopindika yamatope

Filimu ya polima yopangidwa ndi redispersible polima ufa imakhala yabwino kusinthasintha. Mafilimu amapangidwa mu mipata ndi pamwamba pa matope a simenti kuti apange malumikizidwe osinthika. Tondo la simenti lolemera komanso lophwanyika limakhala zotanuka. Tondo wowonjezeredwa ndi ufa wopangidwanso ndi latex umakhala wokwera kangapo pakulimba komanso kusinthasintha kuposa matope wamba.

2. Kupititsa patsogolo mphamvu zomangira ndi mgwirizano wamatope

Pambuyo redispersible latex ufa monga organic binder aumbike filimu, akhoza kupanga mkulu wamakomedwe mphamvu ndi kugwirizana mphamvu pa magawo osiyanasiyana. Zimagwira ntchito yofunikira pakumatira kwamatope kuzinthu zakuthupi (EPS, bolodi lotulutsa thovu) ndi magawo osalala apansi. Mafilimu opangidwa ndi mphira wa mphira wa polima amagawidwa mumatope onse monga kulimbikitsanso kuonjezera mgwirizano wa matope.

3. Kupititsa patsogolo kukana kwamphamvu, kulimba komanso kuvala kukana kwa matope

Tinthu tating'onoting'ono ta mphira timadzaza matope a matope, kuchuluka kwa matope kumawonjezeka, ndipo kukana kwamadzi kumatheka. Pansi pa mphamvu yakunja, idzatulutsa mpumulo popanda kuwonongedwa. Filimu ya polima ikhoza kukhalapo mpaka kalekale mumtondo.

4. Limbikitsani kulimba kwa nyengo ndi kukana kuzizira kwa matope, komanso kupewa matope kuti asang'ambe

Redispersible latex ufa ndi utomoni wa thermoplastic wokhala ndi kusinthasintha kwabwino, zomwe zingapangitse matope kuti athane ndi kusintha kwa kuzizira kwakunja ndi chilengedwe chotentha, ndikuletsa bwino kuti matope asagwedezeke chifukwa cha kusintha kwa kutentha.

5. Sinthani hydrophobicity ya matope ndikuchepetsa kuyamwa kwamadzi

The redispersible latex ufa umapanga filimu pazitsulo ndi pamwamba pa matope, ndipo filimu ya polima sidzabalalitsa kachiwiri pambuyo pokumana ndi madzi, zomwe zimalepheretsa kulowetsedwa kwa madzi ndikupangitsa kuti zisawonongeke. Special redispersible latex ufa ndi hydrophobic kwenikweni, bwino hydrophobic kwenikweni.

6. Kupititsa patsogolo ntchito yomanga matope

Pali mphamvu yothira mafuta pakati pa tinthu tating'ono ta mphira wa polima, kotero kuti zigawo zamatope zimatha kuyenda paokha. Pa nthawi yomweyo, ufa mphira ali ndi inductive zotsatira pa mpweya, kupereka matope compressibility ndi kupititsa patsogolo ntchito yomanga matope.