Chidule cha Re-Dispersible polima ufa

Re-dispersible polymer powder (RDP) ndi mtundu wa zinthu za polima zomwe zimagwiritsidwa ntchito kwambiri pantchito yomanga. Ndi ufa woyera kapena wopanda-woyera umene umapangidwa ndi kupopera-kuyanika polima emulsions. Ufa wotsatirawu ukhoza kusakanikirana mosavuta ndi madzi kuti apange kuyimitsidwa kokhazikika komwe kungagwiritsidwe ntchito ngati zomangira, zomatira, kapena zokutira.

Ma RDP amagwiritsidwa ntchito popanga zinthu zambiri zomanga, kuphatikiza zomatira matailosi, ma grouts, zodzipangira okha, komanso kutulutsa kwakunja ndi kumalizidwa (EIFS). Amagwiritsidwanso ntchito popanga matope osakaniza owuma, omwe ndi osakaniza a simenti, mchenga, ndi zinthu zina zomwe zimagwiritsidwa ntchito popanga konkire, pulasitala, ndi zipangizo zina zomangira.

Katundu wa RDPs amatha kusiyanasiyana kutengera mtundu wa polima womwe umagwiritsidwa ntchito, komanso momwe amapangira. Komabe, nthawi zambiri, RDPs ili ndi izi:

1. Mphamvu zazikulu zomangirira: RDPs ikhoza kupanga zomangira zolimba ndi magawo osiyanasiyana, kuphatikizapo konkire, matabwa, ndi zitsulo.

2. Madzi osakanizidwa ndi madzi: Ma RDP amalimbana kwambiri ndi madzi, zomwe zimawapangitsa kukhala abwino kugwiritsidwa ntchito m'malo onyowa.

3. Kusinthasintha: RDPs ikhoza kupangidwa kuti ikhale yosinthasintha, yomwe imawathandiza kuti athe kupirira kupsinjika maganizo ndi kuyenda popanda kusweka kapena kusweka.

4. Kuchita bwino: Ma RDP amatha kusakanikirana mosavuta ndi madzi kuti apange phala losalala, logwira ntchito kapena kuyimitsidwa.

5. Kumamatira kwabwino: Ma RDP amatha kulumikizana bwino ndi magawo osiyanasiyana, kuphatikiza ma porous komanso osakhala ndi porous.

6. Kukana mankhwala abwino: Ma RDP amalimbana kwambiri ndi mankhwala osiyanasiyana, kuphatikizapo ma asidi, maziko, ndi zosungunulira.

Pali mitundu ingapo ya ma RDP omwe amapezeka pamsika, iliyonse ili ndi mawonekedwe akeake. Zina mwa mitundu yodziwika bwino ndi izi:

1. Ethylene-vinyl acetate (EVA) copolymers: Ma RDPs awa ndi osinthika kwambiri ndipo amamatira kwambiri kumagulu osiyanasiyana. Amagwiritsidwa ntchito kwambiri pomatira matailosi, ma grouts, ndi EIFS.

2. Vinyl acetate-ethylene (VAE) copolymers: Ma RDP awa ndi osagwirizana ndi madzi ndipo amamatira bwino kumagulu osiyanasiyana. Amagwiritsidwa ntchito kwambiri pomanga kunja ndi kumalizitsa machitidwe (EIFS), komanso zomatira matailosi ndi ma grouts.

3. Styrene-butadiene (SB) copolymers: Ma RDP awa amasinthasintha kwambiri ndipo amamatira kwambiri kumagulu osiyanasiyana. Amagwiritsidwa ntchito kwambiri pomatira matailosi, ma grouts, ndi EIFS.

4. Acrylics: RDPs awa ndi osamva madzi kwambiri ndipo amamatira bwino ku magawo osiyanasiyana. Amagwiritsidwa ntchito kwambiri pomanga kunja ndi kumalizitsa (EIFS), komanso zomatira matailosi ndi ma grouts.

5. Polyvinyl alcohol (PVA): Ma RDP awa ndi osungunuka kwambiri m'madzi ndipo amamatira bwino ku magawo osiyanasiyana. Amagwiritsidwa ntchito kwambiri mumatope osakaniza owuma komanso ngati chomangira pamapepala.

Kuphatikiza pa kugwiritsidwa ntchito kwawo pantchito yomanga, ma RDP amagwiritsidwanso ntchito pazinthu zina zosiyanasiyana, kuphatikiza:

1. Zovala Zovala: Ma RDP atha kugwiritsidwa ntchito ngati zokutira nsalu kuti zithandizire kuti madzi asasunthike komanso kuti azikhala olimba.

2. Utoto ndi zokutira: Ma RDP angagwiritsidwe ntchito ngati chomangira mu utoto ndi zokutira kuti azitha kumamatira komanso kukana madzi.

3. Zomatira: Ma RDP angagwiritsidwe ntchito ngati zomangira zomatira kuti apititse patsogolo mphamvu zawo komanso kukana madzi.

4. Zopangira zodzisamalira: Ma RDP atha kugwiritsidwa ntchito pazinthu zosamalira anthu, monga ma gels atsitsi ndi zopakapaka pakhungu, kuti ziwongolere bwino komanso kuti zikhazikike.

Ponseponse, ufa wa polima womwazanso ndi wosunthika komanso wofunikira pantchito yomanga ndi kupitilira apo. Ndi katundu wawo wapadera komanso ntchito zosiyanasiyana, akutsimikiza kuti apitiriza kuchita mbali yofunika m'mafakitale ambiri kwa zaka zambiri.