Mitundu ya ufa wa polima womwe umagwiritsidwa ntchito kwambiri pamakina omanga matope

Mtondo wowuma ndi wophatikizika wa zida za simenti (simenti, phulusa la ntchentche, ufa wa slag, etc.), zophatikizika zapadera (mchenga wa quartz, corundum, ndi zina zambiri, ndipo nthawi zina zimafunikira ma granules opepuka, perlite yowonjezera, vermiculite yowonjezera, etc. ) ndi zosakaniza zimasakanikirana mofanana mu gawo linalake, ndiyeno zimanyamula matumba, migolo kapena kuperekedwa mochuluka mu mkhalidwe wouma wa ufa ngati zomangira.

Pali mitundu yambiri yamatope amalonda, kuphatikizapo matope a ufa wowuma, matope owuma opangira matope, matope owuma owuma pansi, matope apadera owuma oletsa madzi, kuteteza kutentha ndi zina. Pomaliza, matope osakanizidwa owuma amatha kugawidwa kukhala matope wamba osakanizika (miyala, pulasitala ndi matope osakanikirana) ndi matope apadera osakanikirana. Mtondo wapadera wosakanizika wowuma umaphatikizapo: matope odziyimira pawokha, zinthu zapansi zosavala, zopangira organic caulking, matope osalowa madzi, matope opaka utomoni, zinthu zoteteza konkriti pamwamba, matope opaka utoto, etc.

Chifukwa chake, matope ambiri owuma amafunikira mitundu yosiyanasiyana yamitundu yosiyanasiyana komanso njira zosiyanasiyana zogwirira ntchito kuti apangidwe kudzera pamayesero ambiri. Poyerekeza ndi miyambo konkire admixtures, youma wothira matope admixtures angagwiritsidwe ntchito mu mawonekedwe ufa, ndipo kachiwiri, iwo sungunuka m'madzi ozizira, kapena pang'onopang'ono kupasuka pansi zochita za alkalinity kusonyeza chifukwa chake.

Redispersible latex ufa nthawi zambiri umakhala ufa woyera wokhala ndi madzi owuma, okhala ndi phulusa pafupifupi 12%, ndipo phulusa limachokera makamaka kwa wotulutsa. Zomwe tinthu tating'onoting'ono ta polima ufa ndi pafupifupi 0.08mm. Inde, uku ndiko kukula kwa emulsion particle aggregate. Pambuyo redispersing m'madzi, mmene tinthu kukula kwa emulsion tinthu ndi 1 ~ 5um. The mmene tinthu kukula kwa emulsion particles ntchito mwachindunji mu mawonekedwe a emulsion zambiri za 0.2um, kotero tinthu kukula kwa emulsion opangidwa ndi polima ufa ndi lalikulu. Ntchito yayikulu ndikuwonjezera mphamvu yomangirira yamatope, kukonza kulimba kwake, mapindikidwe, kukana ming'alu ndi kusasunthika, ndikuwongolera kusungidwa kwamadzi ndi kukhazikika kwamatope.

Polima redispersible polima ufa womwe umagwiritsidwa ntchito mumatope owuma makamaka umaphatikizapo mitundu iyi:

(1) styrene-butadiene copolymer;
(2) Styrene-acrylic asidi copolymer;
(3) vinilu acetate homopolymer;
(4) polyacrylate homopolymer;
(5) Styrene acetate copolymer;
(6) Vinyl acetate-ethylene copolymer, etc., ambiri mwa vinyl acetate-ethylene copolymer ufa.